gecko-dev/lib/layout/laytext.c

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */



#include "xp.h"
#include "pa_tags.h"
#include "layout.h"
#include "laylayer.h"
#include "layers.h"
#include "libi18n.h"
#include "edt.h"
#include "laystyle.h"
#include "laytrav.h"

/*
 * Turn this define on to get the new multibyte parsing code
#define	FAST_MULTI
*/

#define	FAST_EDITOR

#ifdef TEST_16BIT
#define XP_WIN16
#endif /* TEST_16BIT */

#ifdef XP_WIN16
#define SIZE_LIMIT              32000
#endif /* XP_WIN16 */

#ifdef XP_UNIX
#define TEXT_CHUNK_LIMIT	500
#else
#define TEXT_CHUNK_LIMIT	1600
#endif

#ifdef XP_MAC
#define NON_BREAKING_SPACE	0x07
#else
#define NON_BREAKING_SPACE	160
#endif

#ifdef PROFILE
#pragma profile on
#endif

int32 lo_correct_text_element_width(LO_TextInfo *);

static void lo_insert_quote_characters(MWContext *context, lo_DocState *state);
static LO_TextStruct * lo_new_text_element(MWContext *context, lo_DocState *state, ED_Element *edit_element,
	 intn edit_offset );

void lo_LayoutFormattedText(MWContext *context, lo_DocState *state, LO_TextBlock * block);
void lo_LayoutPreformattedText(MWContext *context, lo_DocState *state, LO_TextBlock * block);
LO_TextBlock * lo_NewTextBlock ( MWContext * context, lo_DocState * state, char * text, uint16 formatMode );
int32 lo_compute_text_basline_inc ( lo_DocState * state, LO_TextBlock * block, LO_TextStruct * text_data );

uint32 lo_FindBlockOffset ( LO_TextBlock * block, LO_TextStruct * fromElement );
void lo_RelayoutTextElements ( MWContext * context, lo_DocState * state, LO_TextBlock * block, LO_TextStruct * fromElement );
Bool lo_CanUseBreakTable ( lo_DocState * state );
Bool lo_UseBreakTable ( LO_TextBlock * block );

void lo_AppendTextToBlock ( MWContext *context, lo_DocState *state, LO_TextBlock * block, char *text );
void lo_LayoutTextBlock ( MWContext * context, lo_DocState * state, Bool flushLastLine );
static void lo_FlushText ( MWContext * context, lo_DocState * state );
static void lo_SetupBreakState ( LO_TextBlock * block );

Bool lo_GrowTextBlock ( LO_TextBlock * block, uint32 length );
static void lo_GetTextParseAtributes ( lo_DocState * state, Bool * multiByte );


#ifdef XP_MAC
#define	kStaticMeasureTextBufferSize	512
static uint16 gMeasureTextBuffer[ kStaticMeasureTextBufferSize ];

/* This needs to go in fe_proto.h - will move it there once we're out of the branch */
#define FE_MeasureText(context, text, charLocs) \
			(*context->funcs->MeasureText)(context, text, charLocs)
#endif

#ifdef XP_MAC
Bool gCallNewText = TRUE;
#endif

LO_TextBlock * lo_NewTextBlock ( MWContext * context, lo_DocState * state, char * text, uint16 formatMode )
{
	LO_TextBlock *	block;
	uint32			length;
	
	length = strlen ( text );
	
	block = (LO_TextBlock *)lo_NewElement ( context, state, LO_TEXTBLOCK, NULL, 0 );
	if ( block == NULL )
		{
		state->top_state->out_of_memory = TRUE;
		return NULL;
		}
		
	block->type = LO_TEXTBLOCK;
	block->x_offset = 0;
	block->ele_id = NEXT_ELEMENT;
	block->x = state->x;
	block->y = state->y;
	block->y_offset = 0;
	block->width = 0;
	block->height = 0;
	block->line_height = 0;
	block->next = NULL;
	block->prev = NULL;
	block->text_attr = NULL;
	block->anchor_href = NULL;
	block->ele_attrmask = 0;
	block->format_mode = 0;
	
	block->startTextElement = NULL;
	block->endTextElement = NULL;
	
	block->text_buffer = NULL;
	block->buffer_length = 0;
	block->buffer_write_index = 0;
	block->last_buffer_write_index = 0;
	block->buffer_read_index = 0;
	block->last_line_break = 0;
	
	block->break_table = NULL;
	block->break_length = 0;
	block->break_write_index = 0;
	block->break_read_index = 0;
	block->last_break_offset = 0;
	
	block->multibyte_index = 0;
	block->multibyte_length = 0;
	
	block->old_break = NULL;
	block->old_break_pos = 0;
	block->old_break_width = 0;
	
	block->totalWidth = 0;
	block->totalChars = 0;
	block->break_pending = 0;
	block->last_char_is_whitespace = 0;
	
	block->ascent = 0;
	block->descent = 0;
	
	block->text_buffer = XP_ALLOC ( length + 1 );
	if ( block->text_buffer == NULL )
		{
		XP_FREE ( block );
		state->top_state->out_of_memory = TRUE;
		return NULL;
		}
	
	block->buffer_length = length + 1;
	XP_BCOPY ( text, block->text_buffer, length );
	block->text_buffer[ length ] = '\0';
	block->buffer_write_index = length;
	
	/* default text does not have a break table */
	block->break_table = NULL;
	block->break_length = 0;
	
	block->format_mode = formatMode;
	
	/*
	 * Since we're creating a new text block, grab some of the text state out of the
	 * layout state.
	 */
	block->anchor_href = state->current_anchor;
	
	if ( state->font_stack != NULL )
		{
		block->text_attr = state->font_stack->text_attr;
		}
		
	if (state->breakable != FALSE)
		{
		block->ele_attrmask |= LO_ELE_BREAKABLE;
		}
	
	state->cur_text_block = block;

	lo_AppendToLineList ( context, state, (LO_Element *) block, 0 );
	
	return block;
}

void
lo_SetDefaultFontAttr(lo_DocState *state, LO_TextAttr *tptr,
	MWContext *context)
{
	tptr->size = DEFAULT_BASE_FONT_SIZE;
	tptr->fontmask = 0;
	tptr->no_background = TRUE;
	tptr->attrmask = 0;
	tptr->fg.red =   STATE_DEFAULT_FG_RED(state);
	tptr->fg.green = STATE_DEFAULT_FG_GREEN(state);
	tptr->fg.blue =  STATE_DEFAULT_FG_BLUE(state);
	tptr->bg.red =   STATE_DEFAULT_BG_RED(state);
	tptr->bg.green = STATE_DEFAULT_BG_GREEN(state);
	tptr->bg.blue =  STATE_DEFAULT_BG_BLUE(state);
	tptr->charset = INTL_DefaultTextAttributeCharSetID(context);
	tptr->font_face = NULL;
	tptr->FE_Data = NULL;
	tptr->point_size = 0;
	tptr->font_weight = 0;
}


/*************************************
 * Function: lo_DefaultFont
 *
 * Description: This function sets up the text attribute
 *      structure for the default text drawing font.
 *      This is the font that sits at the bottom of the font
 *	stack, and can never be popped off.
 *
 * Params: Document state
 *
 * Returns: A pointer to a lo_FontStack structure.
 *	Returns a NULL on error (such as out of memory);
 *************************************/
lo_FontStack *
lo_DefaultFont(lo_DocState *state, MWContext *context)
{
	LO_TextAttr tmp_attr;
	lo_FontStack *fptr;
	LO_TextAttr *tptr;

	/*
	 * Fill in default font information.
	 */
	lo_SetDefaultFontAttr(state, &tmp_attr, context);
	tptr = lo_FetchTextAttr(state, &tmp_attr);

	fptr = XP_NEW(lo_FontStack);
	if (fptr == NULL)
	{
		return(NULL);
	}
	fptr->tag_type = P_UNKNOWN;
	fptr->text_attr = tptr;
	fptr->next = NULL;

	return(fptr);
}


void
lo_PushAlignment(lo_DocState *state, intn tag_type, int32 alignment)
{
	lo_AlignStack *aptr;

	aptr = XP_NEW(lo_AlignStack);
	if (aptr == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return;
	}

	aptr->type = tag_type;
	aptr->alignment = alignment;

	aptr->next = state->align_stack;
	state->align_stack = aptr;
}


lo_AlignStack *
lo_PopAlignment(lo_DocState *state)
{
	lo_AlignStack *aptr;

	aptr = state->align_stack;
	if (aptr != NULL)
	{
		state->align_stack = aptr->next;
		aptr->next = NULL;
	}
	return(aptr);
}

void
lo_PushLineHeight(lo_DocState *state, int32 height)
{
	lo_LineHeightStack *aptr;

	aptr = XP_NEW(lo_LineHeightStack);
	if (aptr == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return;
	}

	aptr->height = height;

	aptr->next = state->line_height_stack;
	state->line_height_stack = aptr;
}

lo_LineHeightStack *
lo_PopLineHeight(lo_DocState *state)
{
	lo_LineHeightStack *aptr;

	aptr = state->line_height_stack;
	if (aptr != NULL)
	{
		state->line_height_stack = aptr->next;
		aptr->next = NULL;
	}
	return(aptr);
}

/*************************************
 * Function: lo_FreshText
 *
 * Description: This function clears out the information from the
 *	document state that refers to text in the midst of being
 *	laid out.  It is called to clear the layout state before
 *	Laying out new text potentially in a new font.
 *
 * Params: Document state structure.
 *
 * Returns: Nothing
 *************************************/
void
lo_FreshText(lo_DocState *state)
{
	state->text_info.max_width = 0;
	state->text_info.ascent = 0;
	state->text_info.descent = 0;
	state->text_info.lbearing = 0;
	state->text_info.rbearing = 0;
	state->line_buf_len = 0;
	state->break_pos = -1;
	state->break_width = 0;
	state->last_char_CR = FALSE;
#ifdef EDITOR
	if( !state->edit_force_offset )
	{
		state->edit_current_offset = 0;
	}
#endif
}


/*************************************
 * Function: lo_new_text_element
 *
 * Description: Create a new text element structure based
 *	on the current text information stored in the document
 *	state.
 *
 * Params: Document state
 *
 * Returns: A pointer to a LO_TextStruct structure.
 *	Returns a NULL on error (such as out of memory);
 *************************************/
static LO_TextStruct *
lo_new_text_element(MWContext *context, lo_DocState *state, ED_Element *edit_element,
		intn edit_offset )
{
	LO_TextStruct *text_ele = NULL;
#ifdef DEBUG
	assert (state);
#endif

	if (state == NULL)
	{
		return(NULL);
	}

	text_ele = (LO_TextStruct *)lo_NewElement(context, state, LO_TEXT, 
			edit_element, edit_offset);
	if (text_ele == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return(NULL);
	}

	text_ele->type = LO_TEXT;
	text_ele->ele_id = NEXT_ELEMENT;
	text_ele->x = state->x;
	text_ele->x_offset = 0;
	text_ele->y = state->y;
	text_ele->y_offset = 0;
	text_ele->width = 0;
	text_ele->height = 0;
	text_ele->next = NULL;
	text_ele->prev = NULL;

	if (state->line_buf_len > 0)
	{
		text_ele->text = PA_ALLOC((state->line_buf_len + 1) *
			sizeof(char));
		if (text_ele->text != NULL)
		{
			char *text_buf;
			char *line;

			PA_LOCK(line, char *, state->line_buf);
			PA_LOCK(text_buf, char *, text_ele->text);
			XP_BCOPY(line, text_buf, state->line_buf_len);
			text_buf[state->line_buf_len] = '\0';
			PA_UNLOCK(text_ele->text);
			PA_UNLOCK(state->line_buf);
			text_ele->text_len = (int16)state->line_buf_len;
		}
		else
		{
			state->top_state->out_of_memory = TRUE;
			/*
			 * free text element && return; it's no different
			 * than if we had run out of memory allocating
			 * the text element
			 */
			lo_FreeElement(context, (LO_Element *)text_ele, FALSE);
			return(NULL);
		}
	}
	else
	{
		text_ele->text = NULL;
		text_ele->text_len = 0;
	}

	text_ele->anchor_href = state->current_anchor;

	if (state->font_stack == NULL)
	{
		text_ele->text_attr = NULL;
	}
	else
	{
		text_ele->text_attr = state->cur_text_block->text_attr;
	}

	text_ele->ele_attrmask = 0;
	if (state->breakable != FALSE)
	{
		text_ele->ele_attrmask |= LO_ELE_BREAKABLE;
	}

	text_ele->sel_start = -1;
	text_ele->sel_end = -1;

	return(text_ele);
}


/*
 * A bogus an probably too expensive function to fill in the
 * textinfo for whatever font is now on the font stack.
 */
MODULE_PRIVATE void
lo_fillin_text_info(MWContext *context, lo_DocState *state)
{
	LO_TextStruct tmp_text;
	PA_Block buff;
	char *str;

	memset (&tmp_text, 0, sizeof (tmp_text));
	buff = PA_ALLOC(1);
	if (buff == NULL)
	{
		return;
	}
	PA_LOCK(str, char *, buff);
	str[0] = ' ';
	PA_UNLOCK(buff);
	tmp_text.text = buff;
	tmp_text.text_len = 1;
	
	/* if we have a text block, use it's font info, otherwise get it from the state */
	if ( state->cur_text_block == NULL )
		{
		tmp_text.text_attr = state->font_stack->text_attr;
		}
	else
		{
		tmp_text.text_attr = state->cur_text_block->text_attr;
		}
		
	FE_GetTextInfo(context, &tmp_text, &(state->text_info));
	PA_FREE(buff);
}


/*************************************
 * Function: lo_NewLinefeed
 *
 * Description: Create a new linefeed element structure based
 *	on the current information stored in the document
 *	state.
 *
 * Params: Document state, linefeed type
 *
 * Returns: A pointer to a LO_LinefeedStruct structure.
 *	Returns a NULL on error (such as out of memory);
 *************************************/
LO_LinefeedStruct *
lo_NewLinefeed(lo_DocState *state, MWContext * context, uint32 break_type, uint32 clear_type)
{	
	LO_LinefeedStruct *linefeed = NULL;

	if (state == NULL)
	{
		return(NULL);
	}

	linefeed = (LO_LinefeedStruct *)lo_NewElement(context, state, LO_LINEFEED, NULL, 0);
#ifdef DEBUG
	assert (state);
#endif
	if (linefeed == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		state->top_state->out_of_memory = TRUE;
		return(NULL);
	}

	lo_FillInLineFeed( context, state, break_type, clear_type, linefeed );

	/*
	linefeed->type = LO_LINEFEED;
	linefeed->ele_id = NEXT_ELEMENT;
	linefeed->x = state->x;
	linefeed->x_offset = 0;
	linefeed->y = state->y;
	linefeed->y_offset = 0;
	*/
    /* 
     * If we're laying out a block, we want the contents of the block
     * to determine the size of the block. The right margin is nothing
     * more than a hint for where to wrap the contents. We don't want 
     * the linefeed to extend out to the right margin, because it 
     * unnecessarily extends the block contents.
     */
	/*
	if (state->layer_nest_level > 0) {
        linefeed->width = 0;
    }
    else
	*/
	/*
	linefeed->width = state->right_margin - state->x;
	if (linefeed->width < 0)
	{
		linefeed->width = 0;
	}
	linefeed->height = state->line_height;
	*/
	/*
	 * if this linefeed has a zero height, make it the height
	 * of the current font.
	 */
	/*
	if (linefeed->height == 0)
	{
		linefeed->height = state->text_info.ascent +
			state->text_info.descent;
		if ((linefeed->height <= 0)&&(state->font_stack != NULL)&&
			(state->font_stack->text_attr != NULL))
		{
			lo_fillin_text_info(context, state);
			linefeed->height = state->text_info.ascent +
				state->text_info.descent;
		}
	*/
		/*
		 * This should never happen, but we have it
		 * covered just in case it does :-)
		 */
	/*
		if (linefeed->height <= 0)
		{
			linefeed->height = state->default_line_height;
		}
	}
	linefeed->line_height = linefeed->height;

	linefeed->FE_Data = NULL;
	linefeed->anchor_href = state->current_anchor;

	if (state->font_stack == NULL)
	{
		LO_TextAttr tmp_attr;
		LO_TextAttr *tptr;
	*/
		/*
		 * Fill in default font information.
		 */
	/*
		lo_SetDefaultFontAttr(state, &tmp_attr, context);
		tptr = lo_FetchTextAttr(state, &tmp_attr);
		linefeed->text_attr = tptr;
	}
	else
	{
		linefeed->text_attr = state->font_stack->text_attr;
	}

	linefeed->baseline = state->baseline;

	linefeed->ele_attrmask = 0;

	linefeed->sel_start = -1;
	linefeed->sel_end = -1;

	linefeed->next = NULL;
	linefeed->prev = NULL;
	linefeed->break_type = (uint8) break_type;
	*/

	return(linefeed);
}



/*************************************
 * Function: lo_InsertLineBreak
 *
 * Description: This function forces a linebreak at this time.
 *	Forcing the current text insetion point down one line
 *	and back to the left margin.
 *	It also maintains the linefeed state:
 *		0 - middle of a line.
 *		1 - at left margin below a line of text.
 *		2 - at left margin below a blank line.
 *
 * Params: Window context, Document state, break type and a boolean
 *	That describes whether this is a breaking linefeed or not.
 *	(Breaking linefeed is one inserted just to break a formatted
 *	 line to the current document width.)
 *
 * Returns: Nothing
 *************************************/
void
lo_InsertLineBreak(MWContext *context, lo_DocState *state, uint32 break_type, uint32 clear_type, Bool breaking)
{
	/* int32 line_width; */
	Bool scroll_at_bottom;

	scroll_at_bottom = FALSE;
	/*
	 * If this is an auto-scrolling doc, we will be scrolling
	 * later if we are at the bottom now.
	 */
	if ((state->is_a_subdoc == SUBDOC_NOT)&&
		(state->display_blocked == FALSE)&&
		(state->top_state->auto_scroll > 0))
	{
		int32 doc_x, doc_y;

		FE_GetDocPosition(context, FE_VIEW, &doc_x, &doc_y);
		if ((doc_y + state->win_height + state->win_bottom) >= state->y)
		{
			scroll_at_bottom = TRUE;
		}
	}

	/*
	 * This line is done, flush it into the line table and
	 * display it to the front end.
	 */
	lo_FlushLineList(context, state, break_type, clear_type, breaking);
	if (state->top_state->out_of_memory != FALSE)
	{
		return;
	}

	lo_UpdateStateAfterLineBreak( context, state, TRUE );

	/*
	 * if this linefeed has a zero height, make it the height
	 * of the current font.
	 */
	/*
	if (state->line_height == 0)
	{
		state->line_height = state->text_info.ascent +
			state->text_info.descent;
		if ((state->line_height <= 0)&&(state->font_stack != NULL)&&
			(state->font_stack->text_attr != NULL))
		{
			lo_fillin_text_info(context, state);
			state->line_height = state->text_info.ascent +
				state->text_info.descent;
		}
	*/
		/*
		 * This should never happen, but we have it
		 * covered just in case it does :-)
		 */
	/*
		if (state->line_height <= 0)
		{
			state->line_height = state->default_line_height;
		}
	}

	if (state->end_last_line != NULL)
	{
		line_width = state->end_last_line->lo_any.x + state->win_right;
	}
	else
	{
		line_width = state->x + state->win_right;
	}

	if (line_width > state->max_width)
	{
		state->max_width = line_width;
	}
	*/

	/* if LineHeightStack exists use it to offset the new Y value */
	/*
    if(state->cur_ele_type != LO_SUBDOC && state->line_height_stack)
	{
		state->y += state->line_height_stack->height;
	}
	else
	{
		state->y = state->y + state->line_height;
	}

	state->x = state->left_margin;
	state->width = 0;
	state->at_begin_line = TRUE;
	state->trailing_space = FALSE;
	state->line_height = 0;
	state->break_holder = state->x;

	state->linefeed_state++;
	if (state->linefeed_state > 2)
	{
		state->linefeed_state = 2;
	}

	*/

	lo_UpdateFEProgressBar(context, state);

	/*
	if (state->is_a_subdoc == SUBDOC_NOT)
	{
		int32 percent;

		if (state->top_state->total_bytes < 1)
		{
			percent = -1;
		}
		else
		{
			percent = (100 * state->top_state->layout_bytes) /
				state->top_state->total_bytes;
			if (percent > 100)
			{
				percent = 100;
			}
		}
		if ((percent == 100)||(percent < 0)||
			(percent > (state->top_state->layout_percent + 1)))
		{
			if(!state->top_state->is_binary)
				FE_SetProgressBarPercent(context, percent);
			state->top_state->layout_percent = (intn)percent;
		}
	}
	*/

	lo_UpdateFEDocSize( context, state );

	/*
	 * Tell the front end how big the document is right now.
	 * Only do this for the top level document.
	 */
	/*
	if ((state->is_a_subdoc == SUBDOC_NOT)
        &&(state->display_blocked == FALSE)
#ifdef EDITOR
		&&(!state->edit_relayout_display_blocked)
#endif
        )
	{
	*/

        /* 
         * Don't resize the layer if we're laying out a block. This
         * will be done when the line is added to the block.
         */
	/*
        if (!lo_InsideLayer(state))
		{
            LO_SetDocumentDimensions(context, state->max_width, state->y);
		}
	}
	*/

	if ((state->display_blocked != FALSE)&&
#ifdef EDITOR
		(!state->edit_relayout_display_blocked)&&
#endif
	   (state->display_blocking_element_y > 0)&&
	   (state->y > (state->display_blocking_element_y + state->win_height)))
	{
		int32 y;

		state->display_blocked = FALSE;
		y = state->display_blocking_element_y;
		state->display_blocking_element_y = 0;
        if (!lo_InsideLayer(state))
		{
            LO_SetDocumentDimensions(context, state->max_width, state->y);
		}
		FE_SetDocPosition(context, FE_VIEW, 0, y);

        if (context->compositor)
		{
            XP_Rect rect;
            
            rect.left = 0;
            rect.top = y;
            rect.right = state->win_width;
            rect.bottom = y + state->win_height;
            CL_UpdateDocumentRect(context->compositor,
                                  &rect, (PRBool)FALSE);
		}
	}

	/*
	 * Reset the left and right margins
	 */
	/*
	lo_FindLineMargins(context, state, TRUE);
	state->x = state->left_margin;
	*/
	if ((state->is_a_subdoc == SUBDOC_NOT)&&
	    (state->top_state->auto_scroll > 0)&&
	    ((state->line_num - 1) > state->top_state->auto_scroll))
	{
		Bool redraw;
		int32 old_y, dy, new_y;
		int32 doc_x, doc_y;

		old_y = state->y;
		FE_GetDocPosition(context, FE_VIEW, &doc_x, &doc_y);
		lo_ClipLines(context, state, 1);
		/*
		 * Calculate how much of the top was clipped
		 * off, and if any of that area was in the users
		 * window we need to redraw their window.
		 */
		redraw = FALSE;
		dy = old_y - state->y;
		if (dy >= doc_y)
		{
			redraw = TRUE;
		}
		new_y = doc_y - dy;
		if (new_y < 0)
		{
			new_y = 0;
		}

		FE_SetDocPosition(context, FE_VIEW, doc_x, new_y);
        if (!lo_InsideLayer(state))
		{
            LO_SetDocumentDimensions(context, state->max_width, state->y);
		}

		if (redraw != FALSE)
		{
			FE_ClearView(context, FE_VIEW );
            if (context->compositor)
            {
                    XP_Rect rect;
                    
                    rect.left = 0;
                    rect.top = new_y;
                    rect.right = state->win_width;
                    rect.bottom = new_y + state->win_height;
                    CL_UpdateDocumentRect(context->compositor,
                                          &rect, (PRBool)FALSE);
			}
		}
	}

	if ((state->is_a_subdoc == SUBDOC_NOT)&&
		(state->display_blocked == FALSE)&&
		(state->top_state->auto_scroll > 0))
	{
		int32 doc_x, doc_y;

		FE_GetDocPosition(context, FE_VIEW, &doc_x, &doc_y);
		if (((doc_y + state->win_height) < state->y)&&
			(scroll_at_bottom != FALSE))
		{
			int32 y;

			y = state->y - state->win_height + state->win_bottom;
			if (y < 0)
			{
				y = 0;
			}
			else
			{
				FE_SetDocPosition(context, FE_VIEW, 0, y);
			}
		}
	}

	lo_insert_quote_characters(context, state);
}

/*************************************
 * Function: lo_HardLineBreak
 *
 * Description: This function forces a linebreak at this time.
 *	Forcing the current text insetion point down one line
 *	and back to the left margin.
 *
 * Params: Window context, Document state and a boolean
 *	That describes whether this is a breaking linefeed or not.
 *	(Breaking linefeed is one inserted just to break a formatted
 *	 line to the current document width.)
 *
 * Returns: Nothing
 *************************************/
void
lo_HardLineBreak(MWContext *context, lo_DocState *state, Bool breaking)
{
	lo_InsertLineBreak ( context, state, LO_LINEFEED_BREAK_HARD, LO_CLEAR_NONE, breaking );
}

/*************************************
 * Function: lo_HardLineBreakWithBreak
 *
 * Returns: Nothing
 *************************************/
void
lo_HardLineBreakWithClearType(MWContext *context, lo_DocState *state, uint32 clear_type, Bool breaking)
{
	lo_InsertLineBreak ( context, state, LO_LINEFEED_BREAK_HARD, clear_type, breaking );
}

/*************************************
 * Function: lo_SoftLineBreak
 *
 * Description: This function adds a single soft line break.
 *
 * Params: Window context, Document state and a boolean that
 *	describes if this is a breaking linefeed.
 *
 * Returns: Nothing
 *************************************/
void
lo_SoftLineBreak(MWContext *context, lo_DocState *state, Bool breaking)
{
	lo_InsertLineBreak ( context, state, LO_LINEFEED_BREAK_SOFT, LO_CLEAR_NONE, breaking);
}

/*************************************
 * Function: lo_SetSoftLineBreakState
 *
 * Description: Add soft linebreaks to bring the linefeed state to the
 *  specified level.
 *	Linefeed states:
 *		0 - middle of a line.
 *		1 - at left margin below a line of text.
 *		2 - at left margin below a blank line.
 *
 * Params: Window context, Document state, a boolean that
 *	describes if this is a breaking linefeed, and the desired
 *	linefeed state.
 *
 * Returns: Nothing
 *************************************/
void
lo_SetSoftLineBreakState(MWContext *context, lo_DocState *state, Bool breaking,
	intn linefeed_state)
{
	lo_SetLineBreakState ( context, state, breaking, LO_LINEFEED_BREAK_SOFT,
		linefeed_state, FALSE);
}

/*************************************
 * Function: lo_SetLineBreakState
 *
 * Description: Add linebreaks to bring the linefeed state to the
 *  specified level.
 * Linefeed states:
 *		0 - middle of a line.
 *		1 - at left margin below a line of text.
 *		2 - at left margin below a blank line.
 *
 * Params: Window context, Document state, a boolean that
 *	describes if this is a breaking linefeed, and the desired
 *	linefeed state.
 *
 * Returns: Nothing
 *************************************/
void
lo_SetLineBreakState(MWContext *context, lo_DocState *state, Bool breaking,
	uint32 break_type, intn linefeed_state, Bool relayout)
{
	/*
	 * Linefeeds are partially disabled if we are placing
	 * preformatted text.
	 */
	if (state->preformatted != PRE_TEXT_NO)
	{
		if ((breaking == FALSE)&&(state->linefeed_state < 1)&&
			(state->top_state->out_of_memory == FALSE))
		{
			if (relayout == FALSE) 
			{
				lo_InsertLineBreak(context, state, break_type, LO_CLEAR_NONE, breaking);				
			}
			else 
			{
				lo_rl_AddBreakAndFlushLine( context, state, break_type, LO_CLEAR_NONE, breaking);
			}
		}
		return;
	}

	/* check for the style sheet display: inline property.
 	 * ignore newlines if it is set
	 */
	if(state->top_state && state->top_state->style_stack)
	{
		StyleStruct *style = STYLESTACK_GetStyleByIndex(
													state->top_state->style_stack,
													0);
		if(style)
		{
			char * property = STYLESTRUCT_GetString(style, DISPLAY_STYLE);
			if(property && !strcasecomp(property, INLINE_STYLE))
			{
				XP_FREE(property);
				return;
			}
			XP_FREEIF(property);
		}
	}

	if (linefeed_state > 2)
	{
		linefeed_state = 2;
	}

	while ((state->linefeed_state < linefeed_state)&&
		(state->top_state->out_of_memory == FALSE))
	{
		if (relayout == FALSE) 
		{
			lo_InsertLineBreak(context, state, break_type, LO_CLEAR_NONE, breaking);
		}
		else 
		{
			lo_rl_AddBreakAndFlushLine( context, state, break_type, LO_CLEAR_NONE, breaking );
		}
	}
}

/*************************************
 * Function: lo_InsertWordBreak
 *
 * Description: This insert a word break into the laid out
 *	element chain for the current line.  A word break is
 *	basically an empty text element structure.  All
 *	word break elements should probably be removed
 *	from the layout chain once the line list for this
 *	line is flushed.
 *
 * Params: Window context and document state.
 *
 * Returns: Nothing
 *************************************/
void
lo_InsertWordBreak(MWContext *context, lo_DocState *state)
{
	LO_TextStruct *text_ele = NULL;

	if (state == NULL)
	{
		return;
	}

	text_ele = (LO_TextStruct *)lo_NewElement(context, state, LO_TEXT, NULL, 0);
	if (text_ele == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return;
	}

	text_ele->type = LO_TEXT;
	text_ele->ele_id = NEXT_ELEMENT;
	text_ele->x = state->x;
	text_ele->x_offset = 0;
	text_ele->y = state->y;
	text_ele->y_offset = 0;
	text_ele->width = 0;
	text_ele->height = 0;
	text_ele->next = NULL;
	text_ele->prev = NULL;

	text_ele->block_offset = 0;
	text_ele->doc_width = 0;
	
#if 0
	text_ele->text = PA_ALLOC(sizeof(char));
	if (text_ele->text != NULL)
	{
		PA_LOCK(text_buf, char *, text_ele->text);
		text_buf[0] = '\0';
		PA_UNLOCK(text_ele->text);
	}
	else
	{
		state->top_state->out_of_memory = TRUE;
	}
#else
	text_ele->text = NULL;
#endif
	text_ele->text_len = 0;
	text_ele->anchor_href = state->current_anchor;

	if (state->font_stack == NULL)
	{
		text_ele->text_attr = NULL;
	}
	else
	{
		text_ele->text_attr = state->font_stack->text_attr;
	}

	text_ele->ele_attrmask = 0;
	if (state->breakable != FALSE)
	{
		text_ele->ele_attrmask |= LO_ELE_BREAKABLE;
	}

	text_ele->sel_start = -1;
	text_ele->sel_end = -1;
	text_ele->bullet_type = WORDBREAK;

	lo_AppendToLineList(context, state, (LO_Element *)text_ele, 0);

	state->old_break = text_ele;
	state->old_break_block = state->cur_text_block;
	state->old_break_pos = 0;
	state->old_break_width = 0;
}


int32
lo_baseline_adjust(MWContext *context, lo_DocState * state, LO_Element *ele_list,
			int32 old_baseline, int32 old_line_height)
{
	LO_Element *eptr;
	int32 baseline;
	int32 new_height;
	int32 baseline_adjust;
	LO_TextInfo text_info;

	baseline = 0;
	new_height = 0;
	eptr = ele_list;
	while (eptr != NULL)
	{
		switch (eptr->type)
		{
			case LO_TEXT:
				FE_GetTextInfo(context, (LO_TextStruct *)eptr,
					&text_info);
				if (text_info.ascent > baseline)
				{
					baseline = text_info.ascent;
				}
				if ((text_info.ascent + text_info.descent) >
					new_height)
				{
					new_height = text_info.ascent +
						text_info.descent;
				}
				break;
			case LO_FORM_ELE:
				if (eptr->lo_form.baseline > baseline)
				{
					baseline = eptr->lo_form.baseline;
				}
				if (eptr->lo_any.height > new_height)
				{
					new_height = eptr->lo_any.height;
				}
				break;
			case LO_IMAGE:
				if ((old_baseline - eptr->lo_any.y_offset) >
					baseline)
				{
					baseline = old_baseline -
						eptr->lo_any.y_offset;
				}
				if ((eptr->lo_image.height +
					(2 * eptr->lo_image.border_width) +
					(2 * eptr->lo_image.border_vert_space))
					> new_height)
				{
					new_height = eptr->lo_image.height +
					 (2 * eptr->lo_image.border_width) +
					 (2 * eptr->lo_image.border_vert_space);
				}
				break;
			case LO_HRULE:
			case LO_BULLET:
				if ((old_baseline - eptr->lo_any.y_offset) >
					baseline)
				{
					baseline = old_baseline -
						eptr->lo_any.y_offset;
				}
				if (eptr->lo_any.height > new_height)
				{
					new_height = eptr->lo_any.height;
				}
				break;
			default:
				break;
		}
		eptr = eptr->lo_any.next;
	}
	baseline_adjust = old_baseline - baseline;
	return(baseline_adjust);
}


/*************************************
 * Function: lo_BreakOldElement
 *
 * Description: This function goes back to a previous
 *	element in the element chain, that is still on the
 *	same line, and breaks the line there, putting the
 *	remaining elements (if any) on the next line.
 *
 * Params: Window context and document state.
 *
 * Returns: Nothing
 *************************************/
void
lo_BreakOldElement(MWContext *context, lo_DocState *state)
{
	char *text_buf;
	char *break_ptr;
	char *word_ptr;
	char *new_buf;
	PA_Block new_block;
	intn word_len;
	int32 save_width;
	int32 old_baseline;
	int32 old_line_height;
	int32 adjust;
	LO_TextStruct *text_data;
	LO_TextStruct *new_text_data;
	LO_Element *tptr;
	int16 charset;
	int multi_byte;
	LO_TextBlock * block;
#ifdef LOCAL_DEBUG
XP_TRACE(("lo_BreakOldElement, flush text.\n"));
#endif /* LOCAL_DEBUG */

	if (state == NULL)
	{
		return;
	}

	/* BRAIN DAMAGE: Make sure the correct element is at the end of the list for this block */
	block = state->old_break_block;
	
	if ( block == NULL )
	{
		return;
	}
	
	/*
	 * If this text block is using the new breaktable algorithm, call that code
	 */
	if ( lo_UseBreakTable ( block ) )
		{
		lo_BreakOldTextBlockElement ( context, state );
		return;
		}
		
	charset = block->text_attr->charset;
	multi_byte = (INTL_CharSetType(charset) != SINGLEBYTE);

	/*
	 * Move to the element we will break
	 */
	text_data = state->old_break;

	/*
	 * If there is no text there to break
	 * it is an error.
	 */
	if ( text_data == NULL )
	{
		return;
	}

	/*
	 * Later operations will trash the width field.
	 * So save it now to restore later.
	 */
	save_width = state->width;

	/*
	 * If this buffer is just an empty string, then we are
	 * breaking at a previously inserted word break element.
	 * Knowing that, the breaking is easier, so it is special 
	 * cased here.
	 */
	if (text_data->text == NULL)
	{
		LO_Element *line_ptr;

		/*
		 * Back the state up to this element's
		 * location, break off the rest of the elements
		 * and save them for later.
		 * Flush this line, and insert a linebreak.
		 */
		state->x = text_data->x;
		state->y = text_data->y;
		tptr = text_data->next;
		text_data->next = NULL;
		PA_UNLOCK(text_data->text);
		state->width = text_data->width;
		state->x += state->width;
		lo_SoftLineBreak(context, state, TRUE);

		/*
		 * The remaining elements go on the next line.
		 * The nextline may already have special mail
		 * bullets on it.
		 */
		line_ptr = state->line_list;
		while ((line_ptr != NULL)&&(line_ptr->lo_any.next != NULL))
		{
			line_ptr = line_ptr->lo_any.next;
		}
		if (line_ptr == NULL)
		{
			state->line_list = tptr;
			if (tptr != NULL)
			{
				tptr->lo_any.prev = NULL;
			}
		}
		else
		{
			line_ptr->lo_any.next = tptr;
			if (tptr != NULL)
			{
				tptr->lo_any.prev = line_ptr;
			}
		}

		/*
		 * If there are no elements to place on the next
		 * line, and we have new text buffered,
		 * remove any spaces at the start of that new
		 * text since new lines are not allowed to begin
		 * with whitespace.
		 */
		if ((tptr == NULL)&&(state->line_buf_len != 0))
		{
			char *cptr;
			int32 wlen;

			PA_LOCK(text_buf, char *, state->line_buf);
			cptr = text_buf;
			wlen = 0;
			while ((XP_IS_SPACE(*cptr))&&(*cptr != '\0'))
			{
				cptr++;
				wlen++;
			}
			if (wlen)
			{
				LO_TextStruct tmp_text;

				memset (&tmp_text, 0, sizeof (tmp_text));

				/*
				 * We removed space, move the string up
				 * and recalculate its current width.
				 */
				XP_BCOPY(cptr, text_buf,
					(state->line_buf_len - wlen + 1));
				state->line_buf_len -= (intn) wlen;
				PA_UNLOCK(state->line_buf);
				tmp_text.text = state->line_buf;
				tmp_text.text_len = (int16)state->line_buf_len;
				tmp_text.text_attr =
					block->text_attr;
				FE_GetTextInfo(context, &tmp_text,
					&(state->text_info));

				/*
				 * Override the saved width since we did want
				 * to change the real width in this case.
				 */
				save_width = lo_correct_text_element_width(
					&(state->text_info));
			}
			else
			{
				PA_UNLOCK(state->line_buf);
			}
		}
	}
	/*
	 * We are breaking somewhere in the middle of an old
	 * text element, this will mean splitting it into 2 text
	 * elements, and putting a line break between them.
	 */
	else
	{
		LO_TextInfo text_info;
		int32 base_change;

		PA_LOCK(text_buf, char *, text_data->text);
		
		/*
		 * Locate our break location, and a pointer to
		 * the remaining word (with its preceeding space removed).
		 */
		break_ptr = (char *)(text_buf + state->old_break_pos);
		/*
		 * On multibyte, we often break on character which is 
		 * not space.
		 */ 
		if (multi_byte == FALSE || XP_IS_SPACE(*break_ptr))
		{
			*break_ptr = '\0';
			word_ptr = (char *)(break_ptr + 1);
		}
		else
		{
			word_ptr = (char *)break_ptr;
		}

		/*
		 * Copy the remaining word into its own block.
		 */
		word_len = XP_STRLEN(word_ptr);
		new_block = PA_ALLOC((word_len + 1));
		if (new_block == NULL)
		{
			state->top_state->out_of_memory = TRUE;
			return;
		}
		PA_LOCK(new_buf, char *, new_block);
		XP_BCOPY(word_ptr, new_buf, (word_len + 1));
		new_buf[word_len] = '\0';

		/*
		 * Back the state up to this element's
		 * location, break off the rest of the elements
		 * and save them for later.
		 * Flush this line, and insert a linebreak.
		 */
		state->x = text_data->x;
		state->y = text_data->y;
		tptr = text_data->next;
		text_data->next = NULL;
		if (word_ptr != break_ptr)
			text_data->text_len = text_data->text_len - word_len - 1;
		else
			text_data->text_len = text_data->text_len - word_len;
		FE_GetTextInfo(context, text_data, &text_info);
		state->width = lo_correct_text_element_width(&text_info);
		PA_UNLOCK(text_data->text);
		state->x += state->width;

		/*
		 * Make the split element know its new width.
		 */
		text_data->width = state->width;

		/*
		 * If the element that caused this break has a different
		 * baseline than the element we are breaking, we need to
		 * preserve that difference after the break.
		 */
		base_change = state->baseline -
			(text_data->y_offset + text_info.ascent);

		old_baseline = state->baseline;
		old_line_height = state->line_height;

		/*
		 * Reset element_id so they are still sequencial.
		 */
		state->top_state->element_id = text_data->ele_id + 1;

		/*
		 * If we are breaking an anchor, we need to make sure the
		 * linefeed gets its anchor href set properly.
		 */
		if (text_data->anchor_href != NULL)
		{
			LO_AnchorData *tmp_anchor;

			tmp_anchor = state->current_anchor;
			state->current_anchor = text_data->anchor_href;
			lo_SoftLineBreak(context, state, TRUE);
			state->current_anchor = tmp_anchor;
		}
		else
		{
			lo_SoftLineBreak(context, state, TRUE);
		}

		adjust = lo_baseline_adjust(context, state, tptr,
			old_baseline, old_line_height);
		state->baseline = old_baseline - adjust;
		state->line_height = (intn) old_line_height - adjust;

		/*
		 * If there was really no remaining word, free the
		 * unneeded buffer.
		 */
		if (word_len == 0)
		{
			LO_Element *eptr;
			LO_Element *line_ptr;

			PA_UNLOCK(new_block);
			PA_FREE(new_block);

			line_ptr = state->line_list;
			while ((line_ptr != NULL)&&
				(line_ptr->lo_any.next != NULL))
			{
				line_ptr = line_ptr->lo_any.next;
			}
			if (line_ptr == NULL)
			{
				state->line_list = tptr;
				if (tptr != NULL)
				{
					tptr->lo_any.prev = NULL;
				}
			}
			else
			{
				line_ptr->lo_any.next = tptr;
				if (tptr != NULL)
				{
					tptr->lo_any.prev = line_ptr;
				}
			}

			state->width = 0;

			eptr = tptr;
			while (eptr != NULL)
			{
				eptr->lo_any.ele_id = NEXT_ELEMENT;
				eptr->lo_any.y_offset -= adjust;
				eptr = eptr->lo_any.next;
			}
		}
		/*
		 * Else create a new text element for the remaining word.
		 * and stick it in the begining of the next line of
		 * text elements.
		 */
		else
		{
			LO_Element *line_ptr;
			LO_Element *eptr;
			int32 baseline_inc;
			LO_TextInfo text_info;
			baseline_inc = -1 * adjust;
			new_text_data = lo_new_text_element(context, state, 
					text_data->edit_element,
                    text_data->edit_offset+text_data->text_len+1 );
			if (new_text_data == NULL)
			{
				return;
			}
			if (new_text_data->text != NULL)
			{
				PA_FREE(new_text_data->text);
				new_text_data->text = NULL;
				new_text_data->text_len = 0;
			}
			new_text_data->anchor_href = text_data->anchor_href;
			new_text_data->text_attr = text_data->text_attr;
			new_text_data->x = state->x;
			new_text_data->y = state->y;
				
#ifdef LOCAL_DEBUG
XP_TRACE(("lo_BreakOldElement, left over word (%s)\n", new_buf));
#endif /* LOCAL_DEBUG */

			PA_UNLOCK(new_block);
			new_text_data->text = new_block;
			new_text_data->text_len = word_len;
			FE_GetTextInfo(context, new_text_data, &text_info);
			new_text_data->width =
				lo_correct_text_element_width(&text_info);

			/*
			 * Some fonts (particulatly italic ones with curly
			 * tails on letters like 'f') have a left bearing
			 * that extends back into the previous character.
			 * Since in this case the previous character is
			 * probably not in the same font, we move forward
			 * to avoid overlap.
			 */
			if (text_info.lbearing < 0)
			{
				new_text_data->x_offset =
					text_info.lbearing * -1;
			}

			/*
			 * The baseline of the text element just inserted in
			 * the line may be less than or greater than the
			 * baseline of the rest of the line due to font
			 * changes.  If the baseline is less, this is easy,
			 * we just increase y_offest to move the text down
			 * so the baselines line up.  For greater baselines,
			 * we can't move the text up to line up the baselines
			 * because we will overlay the previous line, so we
			 * have to move all rest of the elements in this line
			 * down.
			 *
			 * If the baseline is zero, we are the first element
			 * on the line, and we get to set the baseline.
			 */
			if (state->baseline == 0)
			{
				state->baseline = text_info.ascent;
			}
			else if (text_info.ascent < state->baseline)
			{
				new_text_data->y_offset = state->baseline -
						text_info.ascent;
			}
			else
			{
				baseline_inc = baseline_inc +
					(text_info.ascent - state->baseline);
				state->baseline =
					text_info.ascent;
			}

			/*
			 * Now that we have broken, and added the new
			 * element, we need to move it down to restore the
			 * baseline difference that previously existed.
			 */
			new_text_data->y_offset -= base_change;

			/*
			 * Calculate the height of this new
			 * text element.
			 */
			new_text_data->height = text_info.ascent +
				text_info.descent;
			state->x += new_text_data->width;

			/*
			 * Stick this new text element at the beginning
			 * of the remaining line elements
			 * There may be some special mail bullets already
			 * on the line that we have to insert after.
			 */
			line_ptr = state->line_list;
			while ((line_ptr != NULL)&&
				(line_ptr->lo_any.next != NULL))
			{
				line_ptr = line_ptr->lo_any.next;
			}
			if (line_ptr == NULL)
			{
				state->line_list = (LO_Element *)new_text_data;
				new_text_data->prev = NULL;
			}
			else
			{
				line_ptr->lo_any.next =
					(LO_Element *)new_text_data;
				new_text_data->prev = line_ptr;
			}
			new_text_data->next = tptr;
			if (tptr != NULL)
			{
				tptr->lo_any.prev = (LO_Element *)new_text_data;
			}

			eptr = tptr;

			while (eptr != NULL)
			{
				eptr->lo_any.ele_id = NEXT_ELEMENT;
				eptr->lo_any.y_offset += baseline_inc;
				eptr = eptr->lo_any.next;
			}

			if ((new_text_data->y_offset + new_text_data->height) > 
				state->line_height)
			{
				state->line_height = (intn) new_text_data->y_offset +
					new_text_data->height;
			}

			state->at_begin_line = FALSE;
		}
	}

	/*
	 * If we are at the beginning of a line, and there is
	 * remaining text to place here, remove leading space
	 * which is not allowed at the start of lines.
	 * ERIC, make a test case for this, I suspect right now
	 * this code is never being executed and may contain an error.
	 */
	if ((state->at_begin_line != FALSE)&&(tptr != NULL)&&
		(tptr->type == LO_TEXT))
	{
		char *cptr;
		int32 wlen;
		LO_TextStruct *tmp_text;
		LO_TextInfo text_info;

		tmp_text = (LO_TextStruct *)tptr;

		PA_LOCK(text_buf, char *, tmp_text->text);
		cptr = text_buf;
		wlen = 0;
		while ((XP_IS_SPACE(*cptr))&&(*cptr != '\0'))
		{
			cptr++;
			wlen++;
		}
		if (wlen)
		{
			XP_BCOPY(cptr, text_buf,
				(tmp_text->text_len - wlen + 1));
			tmp_text->text_len -= (intn) wlen;

			PA_UNLOCK(tmp_text->text);
			FE_GetTextInfo(context, tmp_text, &text_info);
			tmp_text->width = lo_correct_text_element_width(
				&text_info);
		}
		else
		{
			PA_UNLOCK(tmp_text->text);
		}
	}

	/*
	 * Upgrade forward the x and y text positions in the document
	 * state.
	 */
	while (tptr != NULL)
	{
		lo_UpdateElementPosition ( state, tptr );
		tptr = tptr->lo_any.next;
	}

	state->at_begin_line = FALSE;
	state->width = save_width;
}


void lo_UpdateElementPosition ( lo_DocState * state, LO_Element * element )
{
	element->lo_any.x = state->x;
	element->lo_any.y = state->y;
	state->x = state->x + element->lo_any.width;
	
	/* move any element specific items */
	switch ( element->lo_any.type )
		{
		case LO_IMAGE:
			CL_MoveLayer(element->lo_image.layer, element->lo_any.x, element->lo_any.y);
			break;
			
		case LO_EMBED:
			CL_MoveLayer(element->lo_embed.layer, element->lo_any.x, element->lo_any.y);
			break;
		}
}


/*************************************
 * Function: lo_correct_text_element_width
 *
 * Description: Calculate the correct width of this text element
 *	if it is a complete element surrounded by elements of potentially
 *	different fonts, so we have to take care not to truncate
 *	any slanted characters at either end of the element.
 *
 * Params: LO_TextInfo structure for this text element's text string.
 *
 * Returns: The width this element would have if it stood alone.
 *************************************/
int32
lo_correct_text_element_width(LO_TextInfo *text_info)
{
	int32 x_offset;
	int32 width;

	width = text_info->max_width;
	x_offset = 0;

	/*
	 * For text that leans into the previous character.
	 */
	if (text_info->lbearing < 0)
	{
		x_offset = text_info->lbearing * -1;
		width += x_offset;
	}

	/*
	 * For text that leans right into the following characters.
	 */
	if (text_info->rbearing > text_info->max_width)
	{
		width += (text_info->rbearing - text_info->max_width);
	}

	return(width);
}


PRIVATE
int32
lo_characters_in_line(lo_DocState *state)
{
	int32 cnt;
	LO_Element *eptr;

	cnt = 0;
	eptr = state->line_list;
	while (eptr != NULL)
	{
		if (eptr->type == LO_TEXT)
		{
			cnt += eptr->lo_text.text_len;
		}
		eptr = eptr->lo_any.next;
	}
	return(cnt);
}

void
lo_PreformatedText(MWContext *context, lo_DocState *state, char *text)
{
	LO_TextBlock *	block;
	
	block = lo_NewTextBlock ( context, state, text, state->preformatted );
	if ( !state->top_state->out_of_memory && ( block != NULL ) )
		{
		block->buffer_read_index = 0;
		lo_LayoutPreformattedText ( context, state, block );
		}
}


void
lo_LayoutPreformattedText(MWContext *context, lo_DocState *state, LO_TextBlock * block)
{
	char *tptr;
	char *w_start;
	char *w_end;
	char *text_buf;
	char tchar1;
	Bool have_CR;
	Bool line_break;
	Bool white_space;
	LO_TextStruct text_data;
	char *tmp_buf;
	PA_Block tmp_block;
	int32 tab_count, ignore_cnt, line_length;
	int16 charset;
	int multi_byte;
	int kinsoku_class, last_kinsoku_class;
	int i;
	int bytestocopy;
	char * text;
	Bool lineBufMeasured;
	
	/* start at the current text position in this text block */
	text = (char *) &block->text_buffer[ block->buffer_read_index ];
	
	kinsoku_class = PROHIBIT_NOWHERE;
	
	lineBufMeasured = FALSE;
	
	/*
	 * Initialize the structures to 0 (mark)
	 */
	memset (&text_data, 0, sizeof (LO_TextStruct));

	/*
	 * Error conditions
	 */
	if ((state == NULL)||(state->cur_ele_type != LO_TEXT)||(text == NULL))
	{
		return;
	}

	charset = block->text_attr->charset;
	multi_byte = (INTL_CharSetType(charset) != SINGLEBYTE);

	/*
	 * Move through this text fragment, expand tabs, honor LF/CR.
	 */
	have_CR = state->last_char_CR;
	tptr = text;
	while ((*tptr != '\0')&&(state->top_state->out_of_memory == FALSE))
	{
		Bool has_nbsp;
		Bool in_word;
		Bool wrap_break;
		Bool pre_wrap_break;

		/*
		 * white_space is a tag to tell us if the current word
		 * ends in whitespace.
		 */
		white_space = FALSE;
		line_break = FALSE;
		has_nbsp = FALSE;
		if (multi_byte)
			has_nbsp = TRUE;

		/*
		 * Find the end of the line, counting tabs.
		 */
		tab_count = 0;
		ignore_cnt = 0;
		line_length = 0;
		w_start = tptr;

		/*
		 * If the last character processed was a CR, and the next
		 * char is a LF, ignore it.  Otherwise we know we
		 * can break the line on the first CR or LF found.
		 */
		if ((have_CR != FALSE)&&(*tptr == LF))
		{
			ignore_cnt++;
			tptr++;
		}
		have_CR = FALSE;

		in_word = FALSE;
		wrap_break = FALSE;
		pre_wrap_break = FALSE;
		
#ifdef XP_WIN16
		while ((*tptr != CR)&&(*tptr != LF)&&(*tptr != '\0')&&
#ifdef TEXT_CHUNK_LIMIT
		    ((line_length + (tab_count * state->tab_stop)) < TEXT_CHUNK_LIMIT)&&
#endif /* TEXT_CHUNK_LIMIT */
		    (((state->line_buf_len + line_length + (tab_count * state->tab_stop))) < SIZE_LIMIT))
#else
		while ((*tptr != CR)&&(*tptr != LF)&&(*tptr != '\0')
#ifdef TEXT_CHUNK_LIMIT
		    &&((line_length + (tab_count * state->tab_stop)) < TEXT_CHUNK_LIMIT)
#endif /* TEXT_CHUNK_LIMIT */
			)
#endif /* XP_WIN16 */
		{
			/*
			 * In the special wrapping preformatted text
			 * we need to chunk by word instead of by
			 * line.
			 */
			if ((state->preformatted == PRE_TEXT_WRAP)||
			    (state->preformatted == PRE_TEXT_COLS))
			{
				if(multi_byte && (! (INTL_CharSetType(charset) & CS_SPACE)))
				{
					last_kinsoku_class = kinsoku_class;
					kinsoku_class = INTL_KinsokuClass(charset, (unsigned char *)tptr);
					/* We need to conser PROHIBIT_WORD_BREAK for UTF8 case */
					if(( PROHIBIT_WORD_BREAK == kinsoku_class) || (0x00 == (*tptr & 0x80)))
					{
						if ((in_word == FALSE)&&(!XP_IS_SPACE(*tptr)) )
						{
							in_word = TRUE;
						}
						else if ((in_word != FALSE)&&
							(XP_IS_SPACE(*tptr)))
						{
							wrap_break = TRUE;
							break;
						}
					}
					else
					{
						if( (line_length != 0) &&
							(PROHIBIT_END_OF_LINE != last_kinsoku_class) &&
							(PROHIBIT_BEGIN_OF_LINE != kinsoku_class)
						  )
						{
							wrap_break = TRUE;
							break;
						}
					}
				}
				else
				{
					if ((in_word == FALSE)&&(!XP_IS_SPACE(*tptr)))
					{
						in_word = TRUE;
					}
					else if ((in_word != FALSE)&&
						(XP_IS_SPACE(*tptr)))
					{
						wrap_break = TRUE;
						break;
					}
				}
			}

			if ((*tptr == FF)||(*tptr == VTAB))
			{
				/*
				 * Ignore the form feeds
				 * thrown in by some platforms.
				 * Ignore vertical tabs since we don't know
				 * what else to do with them.
				 */
				ignore_cnt++;
			}
			else if (*tptr == TAB)
			{
				tab_count++;
			}
			else if (!multi_byte && (unsigned char)*tptr == NON_BREAKING_SPACE)
			{
				/* *tptr = ' '; Replace this later */
				has_nbsp = TRUE;
				line_length++;
			}
			else
			{
				if(multi_byte)
					line_length += INTL_CharLen(charset, (unsigned char*)tptr);
				else
					line_length++;
			}

			if(multi_byte)
				tptr = INTL_NextChar(charset, tptr);
			else
				tptr++;
		}
		line_length = line_length + (state->tab_stop * tab_count);

#ifdef TEXT_CHUNK_LIMIT
		if ((state->line_buf_len + line_length) > TEXT_CHUNK_LIMIT)
		{
			lo_FlushLineBuffer(context, state);
			if (state->cur_ele_type != LO_TEXT)
			{
				lo_FreshText(state);
				state->cur_ele_type = LO_TEXT;
			}
		}
#endif /* TEXT_CHUNK_LIMIT */

#ifdef XP_WIN16
		if ((state->line_buf_len + line_length) >= SIZE_LIMIT)
		{
			line_break = TRUE;
		}
#endif /* XP_WIN16 */

		/*
		 * Terminate the word, saving the char we replaced
		 * with the terminator so it can be restored later.
		 */
		w_end = tptr;
		tchar1 = *w_end;
		*w_end = '\0';

		tmp_block = PA_ALLOC(line_length + 1);
		if (tmp_block == NULL)
		{
			*w_end = tchar1;
			state->top_state->out_of_memory = TRUE;
			break;
		}
		PA_LOCK(tmp_buf, char *, tmp_block);

		if ((tab_count)||(ignore_cnt))
		{
			char *cptr;
			char *text_ptr;
			int32 cnt;

			text_ptr = tmp_buf;
			cptr = w_start;
			cnt = lo_characters_in_line(state);
			cnt += state->line_buf_len;
			while (*cptr != '\0')
			{
				if ((*cptr == LF)||(*cptr == FF)||
					(*cptr == VTAB))
				{
					/*
					 * Ignore any linefeeds that must have
					 * been after CR, and form feeds.
					 * Ignore vertical tabs since we
					 * don't know what else to do with them.
					 */
					cptr++;
				}
				else if (*cptr == TAB)
				{
					int32 i, tab_pos;

					tab_pos = ((cnt / state->tab_stop) +
						1) * state->tab_stop;
					for (i=0; i<(tab_pos - cnt); i++)
					{
						*text_ptr++ = ' ';
					}
					cnt = tab_pos;
					cptr++;
				}
				else
				{
					/*
					 * Bug #77467
					 * If multibyte, character != char by default, so copy 
					 * the CHARACTER, not the char
					 */
					if(multi_byte) 
					{
						bytestocopy = INTL_CharLen(charset, (unsigned char*)cptr);
						for (i=0; i<bytestocopy; i++)
						{
							*text_ptr++ = *cptr++;
							cnt++;
						}
					}
					else
					{
						*text_ptr++ = *cptr++;
						cnt++;
					}
				}
			}
			*text_ptr = *cptr;
		}
		else
		{
			XP_BCOPY(w_start, tmp_buf, line_length + 1);
		}

		/*
		 * Now we catch those nasty non-breaking space special
		 * characters and make them spaces.
		 */
		if (has_nbsp != FALSE)
		{
			char *tmp_ptr;

			tmp_ptr = tmp_buf;
			while (*tmp_ptr != '\0')
			{
				if (((unsigned char)*tmp_ptr == NON_BREAKING_SPACE)
					&& (CS_USER_DEFINED_ENCODING != charset))
				{
					*tmp_ptr = ' ';
				}
				if(multi_byte)
					tmp_ptr = INTL_NextChar(charset, tmp_ptr);
				else
					tmp_ptr++;
			}
		}

		/* don't need this any more since we're converting
		 * elsewhere -- erik
		tmp_buf = FE_TranslateISOText(context, charset, tmp_buf);
		 */
		line_length = XP_STRLEN(tmp_buf);

		if ((line_length > 0)&&(XP_IS_SPACE(tmp_buf[line_length - 1])))
		{
			state->trailing_space = TRUE;
		}
#ifdef LOCAL_DEBUG
XP_TRACE(("Found Preformatted text (%s)\n", tmp_buf));
#endif /* LOCAL_DEBUG */
		PA_UNLOCK(tmp_block);

#if WHAT
		/*
		 * If this is an empty string, just throw it out
		 * and move on
		 */
		if (*w_start == '\0')
		{
			*w_end = tchar1;
#ifdef LOCAL_DEBUG
XP_TRACE(("Throwing out empty string!\n"));
#endif /* LOCAL_DEBUG */
			continue;
		}
#endif

		/*
		 * If we have extra text, Append it to the line buffer.
		 * It may be necessary to expand the line
		 * buffer.
		 */
		if (*w_start != '\0')
		{
			int32 old_len;
			Bool old_begin_line;

			old_len = state->line_buf_len;
			old_begin_line = state->at_begin_line;

			if ((state->line_buf_len + line_length + 1) >
				state->line_buf_size)
			{
				state->line_buf = PA_REALLOC(
					state->line_buf, (state->line_buf_size +
					line_length + LINE_BUF_INC));
				if (state->line_buf == NULL)
				{
					*w_end = tchar1;
					state->top_state->out_of_memory = TRUE;
					break;
				}
				state->line_buf_size += (line_length +
					LINE_BUF_INC);
			}
			PA_LOCK(text_buf, char *, state->line_buf);
			PA_LOCK(tmp_buf, char *, tmp_block);

			XP_BCOPY(tmp_buf,
			    (char *)(text_buf + state->line_buf_len),
			    (line_length + 1));
			state->line_buf_len += (intn) line_length;
			PA_UNLOCK(state->line_buf);
			PA_UNLOCK(tmp_block);

			/* we have not measured this new text yet */
			lineBufMeasured = FALSE;
			
			/*
			 * Having added text, we cannot be at the start
			 * of a line
			 */
			state->cur_ele_type = LO_TEXT;
			state->at_begin_line = FALSE;

#ifdef OLD_WAY
			/*
			 * Most common case is appending to the same line.
			 * assume that is what we are doing here.
			 */
			text_data.text = state->line_buf;
			text_data.text_len = (int16)state->line_buf_len;
			text_data.text_attr = block->text_attr;
			FE_GetTextInfo(context, &text_data,
				&(state->text_info));
			state->width =
				lo_correct_text_element_width(
				&(state->text_info));

			/*
			 * If this is a special wrapping pre, and we would
			 * wrap here, break before this, and strip all
			 * following whitespace so there is none at
			 * the start of the next line.
			 * If we were at the beginning of the line before
			 * this, then obviously trying to wrap here will
			 * be pointless, and will in fact cause an
			 * infinite loop.
			 *
			 * Also wrap here is we are in fixed column wrapping
			 * pre text, and we would pass our set column.
			 */
			if (((state->preformatted == PRE_TEXT_WRAP)&&
			    (old_begin_line == FALSE)&&
			    ((state->x + state->width) > state->right_margin))||
			   ((state->preformatted == PRE_TEXT_COLS)&&
			    (old_begin_line == FALSE)&&
			    (state->preformat_cols > 0)&&
			    (state->line_buf_len > state->preformat_cols)))
			{
				PA_LOCK(text_buf, char *, state->line_buf);
				text_buf[old_len] = '\0';
				PA_UNLOCK(state->line_buf);
				state->line_buf_len = old_len;

				*w_end = tchar1;
				tptr = w_start;
				while ((XP_IS_SPACE(*tptr))&&(*tptr != '\0'))
				{
					tptr++;
				}
				line_break = TRUE;
				w_start = tptr;
				w_end = tptr;
				tchar1 = *w_end;
			}
#else

			text_data.text = state->line_buf;
			text_data.text_len = (int16)state->line_buf_len;
			text_data.text_attr = block->text_attr;
			FE_GetTextInfo ( context, &text_data, &(state->text_info) );

			/* update the block's font info cache */
			block->ascent = state->text_info.ascent;
			block->descent = state->text_info.descent;

			/*
			 * If this is a special wrapping pre, then we need to measure this line of text to see
			 * if we need to wrap.
			 */
			if ( ( state->preformatted == PRE_TEXT_WRAP ) && ( old_begin_line == FALSE ) )
			{
				state->width = lo_correct_text_element_width ( &(state->text_info) );
				
				lineBufMeasured = TRUE;
				
				/*
				 * If this line is now too long, wrap
				 */
				if ( ( state->x + state->width ) > state->right_margin )
				{
					pre_wrap_break = TRUE;
				}
			}
			
			/*
			 * Now check to see if we need to wrap based on being too long for the special pre modes
			 */
			if ( ( pre_wrap_break != FALSE ) ||
				(	( state->preformatted == PRE_TEXT_COLS ) &&
					( old_begin_line == FALSE ) &&
					( state->preformat_cols > 0 ) &&
					( state->line_buf_len > state->preformat_cols ) ))
			{
				PA_LOCK(text_buf, char *, state->line_buf);
				text_buf[old_len] = '\0';
				PA_UNLOCK(state->line_buf);
				state->line_buf_len = old_len;

				*w_end = tchar1;
				tptr = w_start;
				while ((XP_IS_SPACE(*tptr))&&(*tptr != '\0'))
				{
					tptr++;
				}
				line_break = TRUE;
				w_start = tptr;
				w_end = tptr;
				tchar1 = *w_end;
			}
#endif
		}

		if (tchar1 == LF)
		{
			line_break = TRUE;
		}
		else if (tchar1 == CR)
		{
			line_break = TRUE;
			have_CR = TRUE;
		}

		/* update the buffer position to refleft the new word */
		block->buffer_read_index = tptr - (char *) block->text_buffer;
		
		/*
		 * If we are breaking the line here, flush the
		 * line_buf, and then insert a linebreak.
		 */
		if (line_break != FALSE)
		{
#ifdef LOCAL_DEBUG
XP_TRACE(("LineBreak, flush text.\n"));
#endif /* LOCAL_DEBUG */

			/*
			 * Flush the line and insert the linebreak.
			 */
			PA_LOCK(text_buf, char *, state->line_buf);
			text_data.text = state->line_buf;
			text_data.text_len = (int16)state->line_buf_len;
			text_data.text_attr = block->text_attr;
			FE_GetTextInfo(context, &text_data,&(state->text_info));
			PA_UNLOCK(state->line_buf);
			state->width = lo_correct_text_element_width(
				&(state->text_info));

			lo_FlushLineBuffer(context, state);

			lineBufMeasured = TRUE;
#ifdef EDITOR
	/* LTNOTE: do something here like: */
			/*state->edit_current_offset += (word_ptr - text_buf);*/
#endif
			if (state->top_state->out_of_memory != FALSE)
			{
				PA_FREE(tmp_block);
				return;
			}
			/*
			 * Put on a linefeed element.
			 * This line is finished and will be added
			 * to the line array.
			 */
			lo_SoftLineBreak(context, state, TRUE);

			state->line_buf_len = 0;
			state->width = 0;

			/*
			 * having just broken the line, we have no break
			 * position.
			 */
			state->break_pos = -1;
			state->break_width = 0;
		}

		*w_end = tchar1;
		if ((*tptr == CR)||(*tptr == LF))
		{
			tptr++;
		}
		PA_FREE(tmp_block);
	}

#ifndef OLD_WAY
	/*
	 * If we haven't measured this line of text yet, do so now
	 */
	if ( !lineBufMeasured )
	{
		text_data.text = state->line_buf;
		text_data.text_len = (int16)state->line_buf_len;
		text_data.text_attr = block->text_attr;
		FE_GetTextInfo ( context, &text_data, &(state->text_info) );
		state->width = lo_correct_text_element_width ( &(state->text_info) );
	}
#endif

	/*
	 * Because we just might get passed text broken between the
	 * CR and the LF, we need to save this state.
	 */
	if ((tptr > text)&&(*(tptr - 1) == CR))
	{
		state->last_char_CR = TRUE;
	}
	
	if ( ( state->cur_ele_type != LO_TEXT ) || ( state->line_buf_len == 0 ) )
		{
		state->cur_text_block = NULL;
		}
}

#define CAPITALIZE 0
#define UPPERCASE  1
#define LOWERCASE  2

/* transform the text inline.
 * "capitalize" : uppercase first letter of each word.
 * "uppercase" : uppercase every letter
 * "lowercase" : lowercase every letter
 * else : do nothing
 */
PRIVATE void
lo_transform_text(char *ptr, int method)
{
	XP_Bool possible_first_letter = TRUE;

	for(; *ptr; ptr++)
	{
		switch(method)
		{
		case CAPITALIZE:
				if(!(XP_IS_SPACE(*ptr)))
				{
					if(possible_first_letter)
					{
						*ptr = XP_TO_UPPER(*ptr);
						possible_first_letter = FALSE;
					}
				}
				else /* is a space */
				{
					possible_first_letter = TRUE;
				}
				break;

			case UPPERCASE:
				*ptr = XP_TO_UPPER(*ptr);
				break;

			case LOWERCASE:
				*ptr = XP_TO_LOWER(*ptr);
				break;

			default:
				XP_ASSERT(0);

		}
	}
}

/* see lo_transform_text
 *
 * This function just maps the string method to an int
 */
PRIVATE void
lo_transform_text_from_string_method(char *ptr, char *method)
{
	if(!strcasecomp(method, "capitalize"))
		lo_transform_text(ptr, CAPITALIZE);
	else if(!strcasecomp(method, "lowercase"))
		lo_transform_text(ptr, LOWERCASE);
	else if(!strcasecomp(method, "uppercase"))
		lo_transform_text(ptr, UPPERCASE);
}

/*************************************
 * Function: lo_FormatText
 *
 * Description: This function creates a text block element and then calls the format
 *	text function for it.
 *
 * Params: Window context and document state., and the text to be formatted.
 *
 * Returns: Nothing
 *************************************/
void
lo_FormatText(MWContext *context, lo_DocState *state, char *text)
{
	LO_TextBlock *	block;
	
	/* can we use the new style layout? */
	if ( lo_CanUseBreakTable ( state ) )
		{
		block = state->cur_text_block;
		
		/* flush any existing text in a partial buffer */
		if ( ( block != NULL ) && lo_UseBreakTable ( block ) )
			{
			lo_LayoutTextBlock ( context, state, TRUE );
			}
		
		/* parse the new text and flush all but any stragglers */
		lo_AppendTextToBlock ( context, state, NULL, text );
		lo_LayoutTextBlock ( context, state, FALSE );
		}
	else
		{
		block = lo_NewTextBlock ( context, state, text, state->preformatted );
		if ( !state->top_state->out_of_memory && ( block != NULL ) )
			{
			block->buffer_read_index = 0;
			lo_LayoutFormattedText ( context, state, block );
			}
		}
}


/*************************************
 * Function: lo_FormatText
 *
 * Description: This function formats text by breaking it into lines
 *	at word boundries.  Word boundries are whitespace, or special
 *	word break tags.
 *
 * Params: Window context and document state., and the text to be formatted.
 *
 * Returns: Nothing
 *************************************/
void
lo_LayoutFormattedText(MWContext *context, lo_DocState *state, LO_TextBlock * block)
{
	char *tptr;
	char *w_start;
	char *w_end;
	char *text_buf;
	char tchar1;
	int32 word_len;
	Bool line_break;
	Bool word_break;
	Bool prev_word_breakable;
	Bool white_space;
	int16 charset;
	Bool multi_byte;
	LO_TextStruct text_data;
	char * text;
	
	/* start at the current text position in this text block */
	text = (char *) &block->text_buffer[ block->buffer_read_index ];
	

#ifdef XP_OS2                  /* performance                            */
   int32 maxw;            /* performance - max char width for font  */
   int32 estwidth;        /* performance - estimated width for line */
   int textsw;            /* performance                            */
   maxw  = 0;
   textsw = 0;            /* performance - need to mark no width taken */
#endif


	/*
	 * Initialize the structures to 0 (mark)
	 */
	memset (&text_data, 0, sizeof (LO_TextStruct));

	/*
	 * Error conditions
	 */
	if ((state == NULL)||(state->cur_ele_type != LO_TEXT)||(text == NULL))
	{
		return;
	}

	charset = block->text_attr->charset;
	if ((INTL_CharSetType(charset) == SINGLEBYTE) ||
		(INTL_CharSetType(charset) & CS_SPACE))
	{
		multi_byte = FALSE;
	}
	else
	{
		multi_byte = TRUE;
	}

	/*
	 * Move through this text fragment, breaking it up into
	 * words, and then grouping the words into lines.
	 */
	tptr = text;
	prev_word_breakable = FALSE;
	while ((*tptr != '\0')&&(state->top_state->out_of_memory == FALSE))
	{
		PA_Block nbsp_block;
		Bool has_nbsp;
#ifdef TEXT_CHUNK_LIMIT
		int32 w_char_cnt;
#endif /* TEXT_CHUNK_LIMIT */
#ifdef XP_WIN16
		int32 ccnt;
#endif /* XP_WIN16 */
		Bool mb_sp;  /* Allow space between multibyte */
		
		/*
		 * white_space is a tag to tell us if the currenct word
		 * contains nothing but whitespace.
		 * word_break tells us if there was whitespace
		 * before this word so we know we can break it.
		 */
		white_space = FALSE;
		word_break = FALSE;
		line_break = FALSE;
		nbsp_block = NULL;
		has_nbsp = FALSE;
		mb_sp = FALSE;

		if (multi_byte == FALSE)
		{
			/* check for textTransform properties and apply them */
			if(state->top_state && state->top_state->style_stack)
			{
				char *property;
				StyleStruct *style_struct = STYLESTACK_GetStyleByIndex(
												state->top_state->style_stack, 
												0);

				if(style_struct)
				{
					property = STYLESTRUCT_GetString(style_struct, 
													 TEXT_TRANSFORM_STYLE);

					if(property)
					{
						lo_transform_text_from_string_method(tptr, property);
					}
				}
			}
		
			/*
			 * Find the start of the word, skipping whitespace.
			 */
			w_start = tptr;
			while ((XP_IS_SPACE(*tptr))&&(*tptr != '\0'))
			{
				tptr++;
			}

			/*
			 * if tptr has been moved at all, that means
			 * there was some whitespace to skip, which means
			 * we are allowed to put a linebreak before this
			 * word if we want to.
			 */
			if (tptr != w_start)
			{
				int32 new_break_holder;
				int32 min_width;
				int32 indent;

				w_start = tptr;
				word_break = TRUE;

				new_break_holder = state->x + state->width;
				min_width = new_break_holder - state->break_holder;
				indent = state->list_stack->old_left_margin -
						state->win_left;
				min_width += indent;
				if (min_width > state->min_width)
				{
					state->min_width = min_width;
				}
				/* If we are not within <NOBR> content, allow break_holder
				 * to be set to the new position where a line break can occur.
				 * This fixes BUG #70782
				 */
				if (state->breakable != FALSE) {
					state->break_holder = new_break_holder;
				}
			}

			/*
   	         * If we are in text that is supposed to be
             * justified, we want each word to be in a separate
             * text element, so if we just found a word break,
             * and there is already a word in the line buffer,
             * flush that word into its own element.
             */
			if ((state->align_stack != NULL)&&
			   (state->align_stack->alignment ==LO_ALIGN_JUSTIFY)&&
			   (word_break != FALSE)&&
			   (state->cur_ele_type == LO_TEXT)&&
			   (state->line_buf_len != 0))
			{
				/* set the current text offset for this new word */
				block->buffer_read_index = tptr - (char *) block->text_buffer;
				
				lo_FlushLineBuffer(context, state);
				if (state->top_state->out_of_memory != FALSE)
				{
					return;
				}
			}

			/*
			 * Find the end of the word.
			 * Terminate the word, saving the char we replaced
			 * with the terminator so it can be restored later.
			 */
#ifdef TEXT_CHUNK_LIMIT
			w_char_cnt = 0;
#endif /* TEXT_CHUNK_LIMIT */
#ifdef XP_WIN16
			ccnt = state->line_buf_len;
			while ((!XP_IS_SPACE(*tptr))&&(*tptr != '\0')&&(ccnt < SIZE_LIMIT))
			{
				if ((unsigned char)*tptr == NON_BREAKING_SPACE)
				{
					has_nbsp = TRUE;
				}
				tptr++;
#ifdef TEXT_CHUNK_LIMIT
				w_char_cnt++;
#endif /* TEXT_CHUNK_LIMIT */
				ccnt++;
			}
			if (ccnt >= SIZE_LIMIT)
			{
				line_break = TRUE;
			}
#else
			while ((!XP_IS_SPACE(*tptr))&&(*tptr != '\0'))
			{
				if ((unsigned char)*tptr == NON_BREAKING_SPACE)
				{
					/* *tptr = ' '; Replace this later */
					has_nbsp = TRUE;
				}
				tptr++;
#ifdef TEXT_CHUNK_LIMIT
				w_char_cnt++;
#endif /* TEXT_CHUNK_LIMIT */
			}
#endif /* XP_WIN16 */
		}
		else
		{
			has_nbsp = TRUE;
			/*
			 * Find the start of the word, skipping whitespace.
			 */
			w_start = tptr;
			while ((XP_IS_SPACE(*tptr))&&(*tptr != '\0'))
			{
				tptr = INTL_NextChar(charset, tptr);
			}
			if (w_start != tptr)
				mb_sp = TRUE;

			/*
			 * if tptr has been moved at all, that means
			 * there was some whitespace to skip, which means
			 * we are allowed to put a linebreak before this
			 * word if we want to.
			 */
			/*
			 * If this char is a two-byte thing, we can break
			 * before it.
			 */
			if ((tptr != w_start)||((unsigned char)*tptr > 127))
			{
				int32 new_break_holder;
				int32 min_width;
				int32 indent;

				/* If it's multibyte character, it always be able to break */
				if (tptr == w_start)
					prev_word_breakable = TRUE;
				w_start = tptr;
				word_break = TRUE;

				new_break_holder = state->x + state->width;
				min_width = new_break_holder - state->break_holder;
				indent = state->list_stack->old_left_margin -
						state->win_left;
				min_width += indent;
				if (min_width > state->min_width)
				{
					state->min_width = min_width;
				}
				/* If we are not within <NOBR> content, allow break_holder
				 * to be set to the new position where a line break can occur.
				 * This fixes BUG #70782
				 */
				if (state->breakable != FALSE) {
					state->break_holder = new_break_holder;
				}
			}
			else if (prev_word_breakable)
			{
				int32 new_break_holder;
				int32 min_width;
				int32 indent;

				prev_word_breakable = FALSE;
				w_start = tptr;
				word_break = TRUE;

				new_break_holder = state->x + state->width;
				min_width = new_break_holder - state->break_holder;
				indent = state->list_stack->old_left_margin -
						state->win_left;
				min_width += indent;
				if (min_width > state->min_width)
				{
					state->min_width = min_width;
				}
				/* If we are not within <NOBR> content, allow break_holder
				 * to be set to the new position where a line break can occur.
				 * This fixes BUG #70782
				 */
				if (state->breakable != FALSE) {
					state->break_holder = new_break_holder;
				}
			}

			/*
			 * Find the end of the word.
			 * Terminate the word, saving the char we replaced
			 * with the terminator so it can be restored later.
			 */
#ifdef TEXT_CHUNK_LIMIT
			w_char_cnt = 0;
#endif /* TEXT_CHUNK_LIMIT */
#ifdef XP_WIN16
			ccnt = state->line_buf_len;
			while ((  ((unsigned char)*tptr < 128) 
						|| (INTL_KinsokuClass(charset, (unsigned char *)tptr) == PROHIBIT_WORD_BREAK )
				   ) && (!XP_IS_SPACE(*tptr)) 
					 && (*tptr != '\0')
					 && (ccnt < SIZE_LIMIT))
			{
				intn c_len;
				char *tptr2;

				tptr2 = INTL_NextChar(charset, tptr);
				c_len = (intn)(tptr2 - tptr);
				tptr = tptr2;
#ifdef TEXT_CHUNK_LIMIT
				w_char_cnt += c_len;
#endif /* TEXT_CHUNK_LIMIT */
				ccnt += c_len;
			}
			if (ccnt >= SIZE_LIMIT)
			{
				line_break = TRUE;
			}
#else

#if 0
			while ( /* Change the order so we have better performance */
					 (*tptr != '\0')
				     && (!XP_IS_SPACE(*tptr)) 
				     && (	((unsigned char)*tptr < 128)
						    || ((CS_UTF8 == charset) /* hack, since we know only CS_UTF8 have PROHIBIT_WORD_BREAK*/
						        && (INTL_KinsokuClass(charset, (unsigned char *)tptr) == PROHIBIT_WORD_BREAK ))
				        )
					 )
#else
			while (
					 (*tptr != '\0')
				     && (!XP_IS_SPACE(*tptr)) 
				     && (	((unsigned char)*tptr < 128)
						    || ((CS_UTF8 == charset) && (*(unsigned char *)tptr <= 0xE2))					
						    /* In case of CS_UTF8, some code range like CJK character baundary is breakable.
						     * While in range UCS2 < 0x2000 (roman), character baundary is not breakable. 
						     */
				        )
					 )
#endif
			{
				intn c_len;
				char *tptr2;

				tptr2 = INTL_NextChar(charset, tptr);
				c_len = (intn)(tptr2 - tptr);
				tptr = tptr2;
#ifdef TEXT_CHUNK_LIMIT
				w_char_cnt += c_len;
#endif /* TEXT_CHUNK_LIMIT */
			}
#endif /* XP_WIN16 */
		}  /* multi byte */

#ifdef TEXT_CHUNK_LIMIT
		if (w_char_cnt > TEXT_CHUNK_LIMIT)
		{
			tptr = (char *)(tptr - (w_char_cnt - TEXT_CHUNK_LIMIT));
			w_char_cnt = TEXT_CHUNK_LIMIT;
		}

		if ((state->line_buf_len + w_char_cnt) > TEXT_CHUNK_LIMIT)
		{
			lo_FlushLineBuffer(context, state);
			if (state->top_state->out_of_memory != FALSE)
			{
				return;
			}
			
			if (state->cur_ele_type != LO_TEXT)
			{
				lo_FreshText(state);
				state->cur_ele_type = LO_TEXT;
			}
		}
#endif /* TEXT_CHUNK_LIMIT */
		if (multi_byte != FALSE)
		{
			if ((w_start == tptr)&&((unsigned char)*tptr > 127))
			{
				tptr = INTL_NextChar(charset, tptr);
			}
		}
		w_end = tptr;
		tchar1 = *w_end;
		*w_end = '\0';

		/*
		 * If the "word" is just an empty string, this
		 * is just whitespace that we may wish to compress out.
		 */
		if (*w_start == '\0')
		{
			white_space = TRUE;
		}

		/*
		 * compress out whitespace if the last word added was also
		 * whitespace.
		 */
		if ((white_space != FALSE)&&(state->trailing_space != FALSE))
		{
			*w_end = tchar1;
#ifdef LOCAL_DEBUG
XP_TRACE(("Discarding(%s)\n", w_start));
#endif /* LOCAL_DEBUG */
			continue;
		}

		/*
		 * This places the preceeding space in front of
		 * separate words on a line.
		 * Unecessary if last item was trailng space.
		 *
		 * If there was a word break before this word, so we know it
		 * was supposed to be separate, and if we are not at the
		 * beginning of the line, and if the
		 * preceeding word is not already whitespace, then add
		 * a space before this word.
		 */
		if ((word_break != FALSE)&&
			(state->at_begin_line == FALSE)&&
			(state->trailing_space == FALSE))
		{
			/*
			 * Since word_break is true, we know
			 * we skipped some spaces previously
			 * so we know there is space to back up
			 * the word pointer inside the buffer.
			 */
		    if ((multi_byte == FALSE)||mb_sp)
		    {
				w_start--;
				*w_start = ' ';
		    }

			/*
			 * If we are formatting breakable text
			 * set break position to be just before this word.
			 * This is where we will break this line if the
			 * new word makes it too long.
			 */
			if (state->breakable != FALSE)
			{
				state->break_pos = state->line_buf_len;
				state->break_width = state->width;
			}
		}

#ifdef LOCAL_DEBUG
XP_TRACE(("Found Word (%s)\n", w_start));
#endif /* LOCAL_DEBUG */
		/*
		 * If this is an empty string, just throw it out
		 * and move on
		 */
		if (*w_start == '\0')
		{
			*w_end = tchar1;
#ifdef LOCAL_DEBUG
XP_TRACE(("Throwing out empty string!\n"));
#endif /* LOCAL_DEBUG */
			continue;
		}

		/*
		 * Now we catch those nasty non-breaking space special
		 * characters and make them spaces.  Yuck, so that 
		 * relayout in tables will still see the non-breaking
		 * spaces, we need to copy the buffer here.
		 */
		if (has_nbsp != FALSE)
		{
			char *tmp_ptr;
			char *to_ptr;
			char *tmp_buf;

			nbsp_block = PA_ALLOC(XP_STRLEN(w_start) + 1);
			if (nbsp_block == NULL)
			{
				*w_end = tchar1;
				state->top_state->out_of_memory = TRUE;
				break;
			}
			PA_LOCK(tmp_buf, char *, nbsp_block);

			tmp_ptr = w_start;
			to_ptr = tmp_buf;
			while (*tmp_ptr != '\0')
			{
				*to_ptr = *tmp_ptr;
				if (((unsigned char)*to_ptr == NON_BREAKING_SPACE)
					&& (CS_USER_DEFINED_ENCODING != charset))
				{
					*to_ptr = ' ';
				}
				if(multi_byte) {
					int i;
					int len = INTL_CharLen(charset,
                                                               (unsigned char *)tmp_ptr);
					to_ptr++;
					tmp_ptr++;
					for (i=1; (i<len) && (*tmp_ptr != '\0'); i++) {
						*to_ptr++  = *tmp_ptr++;
					}
				}
				else {
					to_ptr++;
					tmp_ptr++;
				}
			}
			*w_end = tchar1;
			w_start = tmp_buf;
			w_end = to_ptr;
			*w_end = '\0';
		}

		/*
		 * Make this Front End specific text, and count
		 * the length of the word.
		 */
		/* don't need this any more since we're converting
		 * elsewhere -- erik
		w_start = FE_TranslateISOText(context, charset, w_start);
		 */
		word_len = XP_STRLEN(w_start);

		/*
		 * Append this word to the line buffer.
		 * It may be necessary to expand the line
		 * buffer.
		 */
		if ((state->line_buf_len + word_len + 1) >
			state->line_buf_size)
		{
			state->line_buf = PA_REALLOC( state->line_buf,
				(state->line_buf_size +
				word_len + LINE_BUF_INC));
			if (state->line_buf == NULL)
			{
				*w_end = tchar1;
				if ((has_nbsp != FALSE)&&(nbsp_block != NULL))
				{
					PA_UNLOCK(nbsp_block);
					PA_FREE(nbsp_block);
					nbsp_block = NULL;
				}
				state->top_state->out_of_memory = TRUE;
				break;
			}
			state->line_buf_size += (word_len + LINE_BUF_INC);
		}
		PA_LOCK(text_buf, char *, state->line_buf);
		XP_BCOPY(w_start,
		    (char *)(text_buf + state->line_buf_len),
		    (word_len + 1));
		state->line_buf_len += word_len;
		PA_UNLOCK(state->line_buf);

		/*
		 * Having added a word, we cannot be at the start of a line
		 */
		state->cur_ele_type = LO_TEXT;
		state->at_begin_line = FALSE;

		/*
		 * Most common case is appending to the same line.
		 * assume that is what we are doing here.
		 */
		text_data.text = state->line_buf;
		text_data.text_len = (int16)state->line_buf_len;
		text_data.text_attr = state->cur_text_block->text_attr;
		FE_GetTextInfo(context, &text_data, &(state->text_info));
		state->width =
			lo_correct_text_element_width(&(state->text_info));
		
		/* udpate the block's font info cache */
		block->ascent = state->text_info.ascent;
		block->descent = state->text_info.descent;
		
		/*
		 * Set line_break based on document window width
		 */
#ifdef XP_WIN16
		if (((state->x + state->width) > state->right_margin)||(line_break != FALSE))
#else
		if ((state->x + state->width) > state->right_margin)
#endif /* XP_WIN16 */
		{
			/*  
			 * INTL kinsoku line break, some of characters are not allowed to put 
			 * in the end of line or beginning of line
			 */
			if (multi_byte && (state->break_pos != -1))
			{
				int cur_wordtype, pre_wordtype, pre_break_pos;
				cur_wordtype = INTL_KinsokuClass(charset, (unsigned char *) w_start);

				PA_LOCK(text_buf, char *, state->line_buf);
				pre_break_pos = INTL_PrevCharIdx(charset, 
					(unsigned char *)text_buf, state->break_pos);
				pre_wordtype = INTL_KinsokuClass(charset, 
					(unsigned char *)(text_buf + pre_break_pos));

				if (pre_wordtype == PROHIBIT_END_OF_LINE ||
				    (cur_wordtype == PROHIBIT_BEGIN_OF_LINE && 
					 XP_IS_ALPHA(*(text_buf+pre_break_pos)) == FALSE))
					state->break_pos = pre_break_pos;

				PA_UNLOCK(state->line_buf);
			}
			line_break = TRUE;
		}
		else
		{
			line_break = FALSE;
		}

		/*
		 * We cannot break a line if we have no break positions.
		 * Usually happens with a single line of unbreakable text.
		 */
		if ((line_break != FALSE)&&(state->break_pos == -1))
		{
			/*
			 * It may be possible to break a previous
			 * text element on the same line.
			 */
			if (state->old_break_pos != -1)
			{
				lo_BreakOldElement(context, state);
				line_break = FALSE;
			}
#ifdef XP_WIN16
			else if (ccnt >= SIZE_LIMIT)
			{
				state->break_pos = state->line_buf_len - 1;
			}
			else
			{
				line_break = FALSE;
			}
#else
			else
			{
				line_break = FALSE;
			}
#endif /* XP_WIN16 */
		}

		/*
		 * If we are breaking the line here, flush the
		 * line_buf, and then insert a linebreak.
		 */
		if (line_break != FALSE)
		{
			char *break_ptr;
			char *word_ptr;
			char *new_buf;
			PA_Block new_block;
#ifdef LOCAL_DEBUG
XP_TRACE(("LineBreak, flush text.\n"));
#endif /* LOCAL_DEBUG */

			/*
			 * Find the breaking point, and the pointer
			 * to the remaining word without its leading
			 * space.
			 */
			PA_LOCK(text_buf, char *, state->line_buf);
			break_ptr = (char *)(text_buf + state->break_pos);
/*			word_ptr = (char *)(break_ptr + 1); */
			word_ptr = break_ptr;

		    if ((multi_byte == FALSE)||mb_sp)
		    {
				word_ptr++;
		    }

			/*
			 * Copy the remaining word into its
			 * own buffer.
			 */
			word_len = XP_STRLEN(word_ptr);
			new_block = PA_ALLOC((word_len + 1) *
				sizeof(char));
			if (new_block == NULL)
			{
				PA_UNLOCK(state->line_buf);
				*w_end = tchar1;
				if ((has_nbsp != FALSE)&&(nbsp_block != NULL))
				{
					PA_UNLOCK(nbsp_block);
					PA_FREE(nbsp_block);
					nbsp_block = NULL;
				}
				state->top_state->out_of_memory = TRUE;
				break;
			}
			PA_LOCK(new_buf, char *, new_block);
			XP_BCOPY(word_ptr, new_buf, (word_len + 1));

			*break_ptr = '\0';
			state->line_buf_len = state->line_buf_len -
				word_len;
			if ((multi_byte == FALSE)||(word_ptr != break_ptr))
		    {
				state->line_buf_len--;
		    }
			text_data.text = state->line_buf;
			text_data.text_len = (int16)state->line_buf_len;
			text_data.text_attr = state->cur_text_block->text_attr;
			FE_GetTextInfo(context, &text_data,&(state->text_info));
			PA_UNLOCK(state->line_buf);
			state->width = lo_correct_text_element_width(
				&(state->text_info));
			
			lo_FlushLineBuffer(context, state);
#ifdef EDITOR
			state->edit_current_offset += (word_ptr - text_buf);
#endif
			if (state->top_state->out_of_memory != FALSE)
			{
				PA_UNLOCK(new_block);
				PA_FREE(new_block);
				if ((has_nbsp != FALSE)&&(nbsp_block != NULL))
				{
					PA_UNLOCK(nbsp_block);
					PA_FREE(nbsp_block);
					nbsp_block = NULL;
				}
				return;
			}

			/*
			 * Put on a linefeed element.
			 * This line is finished and will be added
			 * to the line array.
			 */
			lo_SoftLineBreak(context, state, TRUE);

			/*
			 * If there was no remaining word, free up
			 * the unnecessary buffer, and empty out
			 * the line buffer.
			 */
			if (word_len == 0)
			{
				PA_UNLOCK(new_block);
				PA_FREE(new_block);
				state->line_buf_len = 0;
				state->width = 0;
			}
			else
			{
				PA_LOCK(text_buf, char *,state->line_buf);
				XP_BCOPY(new_buf, text_buf, (word_len + 1));
				PA_UNLOCK(state->line_buf);
				PA_UNLOCK(new_block);
				PA_FREE(new_block);
				state->line_buf_len = word_len;
				text_data.text = state->line_buf;
				text_data.text_len = (int16)state->line_buf_len;
				text_data.text_attr =
					state->cur_text_block->text_attr;
				FE_GetTextInfo(context, &text_data,
					&(state->text_info));
				state->width = lo_correct_text_element_width(
					&(state->text_info));

				/*
				 * Having added text, we are no longer at the
				 * start of the line.
				 */
				state->at_begin_line = FALSE;
				state->cur_ele_type = LO_TEXT;
			}


			/*
			 * having just broken the line, we have no break
			 * position.
			 */
			state->break_pos = -1;
			state->break_width = 0;
		}
		else
		{
			/* this word fits, so update the text buffer position */
			block->buffer_read_index = tptr - (char *) block->text_buffer;

			if (white_space != FALSE)
			{
				state->trailing_space = TRUE;
			}
			else
			{
				state->trailing_space = FALSE;
			}
		}

		*w_end = tchar1;
		/*
		 * Free up the extra block used for non-breaking
		 * spaces if we had to allocate one.
		 */
		if ((has_nbsp != FALSE)&&(nbsp_block != NULL))
		{
			PA_UNLOCK(nbsp_block);
			PA_FREE(nbsp_block);
			nbsp_block = NULL;
		}
	}
	/*  
	 * if last char is multibyte, break position need to be set to end of string
	 */
	if (multi_byte != FALSE && *tptr == '\0' && prev_word_breakable != FALSE)
		state->break_pos = state->line_buf_len;
	
	if ( ( state->cur_ele_type != LO_TEXT ) || ( state->line_buf_len == 0 ) )
		{
		state->cur_text_block = NULL;
		}
}


/*************************************
 * Function: lo_FlushLineBuffer
 *
 * Description: Flush out the current line buffer of text
 *	into a new text element, and add that element to
 *	the end of the line list of elements.
 *
 * Params: Window context and document state.
 *
 * Returns: Nothing
 *************************************/
void
lo_FlushLineBuffer(MWContext *context, lo_DocState *state)
{
	LO_TextStruct *text_data;
	int32 baseline_inc;
	LO_TextBlock * block;
	
	baseline_inc = 0;
#ifdef DEBUG
	assert (state);
#endif
		
	block = state->cur_text_block;
	
	/* bail if we have nothing to do with text */
	if ( ( block == NULL ) || ( state->cur_ele_type != LO_TEXT ) )
		{
		return;
		}
	
	/*
	 * If we're currently using the new break table layout, then bail to it
	 */
	if ( lo_UseBreakTable ( block ) )
		{
		lo_FlushText ( context, state );
		return;
		}
	
	/*
	 * Make sure we have some text to flush
	 */
	if ( state->line_buf_len == 0 )
		{
		return;
		}
		
	/* 
	 * LTNOTE: probably should be grabbing state edit_element and offset from
	 * state.
	*/
    text_data = lo_new_text_element(context, state, NULL, 0);

	if (text_data == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return;
	}
	state->linefeed_state = 0;

	/*
	 * Some fonts (particulatly italic ones with curly tails
	 * on letters like 'f') have a left bearing that extends
	 * back into the previous character.  Since in this case the
	 * previous character is probably not in the same font, we
	 * move forward to avoid overlap.
	 *
	 * Those same funny fonts can extend past the last character,
	 * and we also have to catch that, and advance the following text
	 * to eliminate cutoff.
	 */
	if (state->text_info.lbearing < 0)
	{
		text_data->x_offset = state->text_info.lbearing * -1;
	}
	text_data->width = state->width;
	
	/* 
	 * record the current doc width and text buffer offset for use
	 * during relayout.
	 */
	text_data->doc_width = state->right_margin - state->x;
	text_data->block_offset = block->buffer_read_index;
	XP_ASSERT(block->buffer_read_index <= 65535);
	
	baseline_inc = lo_compute_text_basline_inc ( state, block, text_data );
	
	lo_AppendToLineList(context, state, (LO_Element *)text_data, baseline_inc);

	if ( block->startTextElement == NULL )
		{
		block->startTextElement = text_data;
		block->endTextElement = text_data;
		}
	else
		{
		block->endTextElement = text_data;
		}
		
	text_data->height = state->text_info.ascent +
		state->text_info.descent;

	/*
	 * If the element we just flushed had a breakable word
	 * position in it, save that position in case we have
	 * to go back and break this element before we finish
	 * the line.
	 */
	if (state->break_pos != -1)
	{
		state->old_break = text_data;
		state->old_break_block = block;
		state->old_break_pos = state->break_pos;
		state->old_break_width = state->break_width;
	}

	state->line_buf_len = 0;
	state->x += state->width;
	state->width = 0;
	state->cur_ele_type = LO_NONE;
}

void
lo_FlushTextBlock ( MWContext *context, lo_DocState *state )
{
	lo_FlushLineBuffer ( context, state );
	
	state->cur_text_block = NULL;
}

void
lo_ChangeBodyTextFGColor(MWContext *context, lo_DocState *state, 
                         LO_Color *color)
{
	lo_FontStack *fptr;
	LO_TextAttr *attr;

	if ((state->top_state->body_attr & BODY_ATTR_TEXT) != 0)
        return;
    
    state->top_state->body_attr |= BODY_ATTR_TEXT;

    state->text_fg = *color;
    fptr = state->font_stack;

    /* 
     * If we're inside a layer, then we want this color change
     * to only affect text in the layer. So, we push a font
     * (a copy of the top of the stack) onto the font stack
     * and change its color. This font will be popped in the
     * closing of the layer.
     */
    if (lo_InsideLayer(state)) {
        LO_TextAttr tmp_attr;
        
        if (fptr)
            lo_CopyTextAttr(fptr->text_attr, &tmp_attr);
        else
            lo_SetDefaultFontAttr(state, &tmp_attr, context);

        tmp_attr.fg.red =   STATE_DEFAULT_FG_RED(state);
		tmp_attr.fg.green = STATE_DEFAULT_FG_GREEN(state);
		tmp_attr.fg.blue =  STATE_DEFAULT_FG_BLUE(state);
        attr = lo_FetchTextAttr(state, &tmp_attr);
        lo_PushFont(state, P_BODY, attr);
    }
    else if (fptr != NULL)
	{
		attr = fptr->text_attr;
		attr->fg.red =   STATE_DEFAULT_FG_RED(state);
		attr->fg.green = STATE_DEFAULT_FG_GREEN(state);
		attr->fg.blue =  STATE_DEFAULT_FG_BLUE(state);
	}
}


/*
 * Something has changed (probably the default FG and BG colors)
 * since the font stack was initialized in this state.
 * We need to reinitialie it to the new default font.
 * WARNING: This function depends on the assumption that no
 *		elements have yet been placed in this state.
 */
void
lo_ResetFontStack(MWContext *context, lo_DocState *state)
{
	if (state->font_stack != NULL)
        {
                lo_FontStack *fstack;
                lo_FontStack *fptr;

                fptr = state->font_stack;
                while (fptr != NULL)
                {
                        fstack = fptr;
                        fptr = fptr->next;
                        XP_DELETE(fstack);
                }
                state->font_stack = NULL;
        }
	state->font_stack = lo_DefaultFont(state, context);
}


/*************************************
 * Function: lo_PushFont
 *
 * Description: Push the text attribute information for a new
 *	font onto the font stack.  Also save the type of the
 *	tag that caused the change.
 *
 * Params: Document state, tag type, and the text attribute
 *	structure for the new font.
 *
 * Returns: Nothing
 *************************************/
void
lo_PushFont(lo_DocState *state, intn tag_type, LO_TextAttr *attr)
{
	lo_FontStack *fptr;

	fptr = XP_NEW(lo_FontStack);
	if (fptr == NULL)
	{
		return;
	}
	fptr->tag_type = tag_type;
	fptr->text_attr = attr;
	fptr->next = state->font_stack;
	state->font_stack = fptr;;
}


/*************************************
 * Function: lo_PopFontStack
 *
 * Description: This function pops the next font
 *	off the font stack, and return the text attribute of the
 *	previous font.
 *	The last font on the font stack cannot be popped off.
 *
 * Params: Document state, and the tag type that caused the change.
 *
 * Returns: The LO_TextAttr structure of the font just passed.
 *************************************/
PRIVATE
LO_TextAttr *
lo_PopFontStack(lo_DocState *state, intn tag_type)
{
	LO_TextAttr *attr;
	lo_FontStack *fptr;

	if (state->font_stack->next == NULL)
	{
#ifdef LOCAL_DEBUG
XP_TRACE(("Popped too many fonts!\n"));
#endif /* LOCAL_DEBUG */
		return(NULL);
	}

	fptr = state->font_stack;
	attr = fptr->text_attr;
	if (fptr->tag_type != tag_type)
	{
#ifdef LOCAL_DEBUG
XP_TRACE(("Warning:  Font popped by different TAG than pushed it %d != %d\n", fptr->tag_type, tag_type));
#endif /* LOCAL_DEBUG */
	}
	state->font_stack = fptr->next;
	XP_DELETE(fptr);

	return(attr);
}


LO_TextAttr *
lo_PopFont(lo_DocState *state, intn tag_type)
{
	LO_TextAttr *attr;
	lo_FontStack *fptr;

	/*
	 * This should never happen, but we are patching a
	 * more serious problem that causes us to be called
	 * here after the font stack has been freed.
	 */
	if ((state->font_stack == NULL)||(state->font_stack->next == NULL))
	{
#ifdef LOCAL_DEBUG
XP_TRACE(("Popped too many fonts!\n"));
#endif /* LOCAL_DEBUG */
		return(NULL);
	}

	fptr = state->font_stack;
	attr = NULL;

	if (fptr->tag_type != P_ANCHOR)
	{
		attr = fptr->text_attr;
		if (fptr->tag_type != tag_type)
		{
#ifdef LOCAL_DEBUG
XP_TRACE(("Warning:  Font popped by different TAG than pushed it %d != %d\n", fptr->tag_type, tag_type));
#endif /* LOCAL_DEBUG */
		}
		state->font_stack = fptr->next;
		XP_DELETE(fptr);
	}
	else
	{
		while ((fptr->next != NULL)&&(fptr->next->tag_type == P_ANCHOR))
		{
			fptr = fptr->next;
		}
		if (fptr->next->next != NULL)
		{
			lo_FontStack *f_tmp;

			f_tmp = fptr->next;
			fptr->next = fptr->next->next;
			attr = f_tmp->text_attr;
			XP_DELETE(f_tmp);
		}
	}

	return(attr);
}


void
lo_PopAllAnchors(lo_DocState *state)
{
	lo_FontStack *fptr;

	if (state->font_stack->next == NULL)
	{
#ifdef LOCAL_DEBUG
XP_TRACE(("Popped too many fonts!\n"));
#endif /* LOCAL_DEBUG */
		return;
	}

	/*
	 * Remove all anchors on top of the font stack
	 */
	fptr = state->font_stack;
	while ((fptr->tag_type == P_ANCHOR)&&(fptr->next != NULL))
	{
		lo_FontStack *f_tmp;

		f_tmp = fptr;
		fptr = fptr->next;
		XP_DELETE(f_tmp);
	}
	state->font_stack = fptr;

	/*
	 * Remove all anchors buried in the stack
	 */
	while (fptr->next != NULL)
	{
		/*
		 * Reset spurrious anchor color text entries
		 */
		if ((fptr->text_attr != NULL)&&
			(fptr->text_attr->attrmask & LO_ATTR_ANCHOR))
		{
			LO_TextAttr tmp_attr;

			lo_CopyTextAttr(fptr->text_attr, &tmp_attr);
			tmp_attr.attrmask =
				tmp_attr.attrmask & (~LO_ATTR_ANCHOR);
			tmp_attr.fg.red = STATE_DEFAULT_FG_RED(state);
			tmp_attr.fg.green = STATE_DEFAULT_FG_GREEN(state);
			tmp_attr.fg.blue = STATE_DEFAULT_FG_BLUE(state);
			tmp_attr.bg.red = STATE_DEFAULT_BG_RED(state);
			tmp_attr.bg.green = STATE_DEFAULT_BG_GREEN(state);
			tmp_attr.bg.blue = STATE_DEFAULT_BG_BLUE(state);
			fptr->text_attr = lo_FetchTextAttr(state, &tmp_attr);
		}

		if (fptr->next->tag_type == P_ANCHOR)
		{
			lo_FontStack *f_tmp;

			f_tmp = fptr->next;
			fptr->next = fptr->next->next;
			XP_DELETE(f_tmp);
		}
		else
		{
			fptr = fptr->next;
		}
	}
}

void
lo_FormatBullet(MWContext *context, lo_DocState *state,
				LO_BulletStruct *bullet,
				int32 *line_height,
				int32 *baseline)
{
	LO_TextStruct tmp_text;
	LO_TextInfo text_info;
	LO_TextAttr *tptr;
	PA_Block buff;
	char *str;

#define MIN_BULLET_SIZE 5

	bullet->ele_id = NEXT_ELEMENT;

	/* bullet = (LO_BulletStruct *)lo_NewElement(context, state, LO_BULLET, NULL, 0); */
	if (bullet == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return;
	}
/*
	if(state->font_stack)
    {
        lo_CopyTextAttr(state->font_stack->text_attr, &tmp_attr);
    }
    else
    {
		lo_SetDefaultFontAttr(state, &tmp_attr, context);
	}
*/
	tptr = bullet->text_attr;

	memset (&tmp_text, 0, sizeof (tmp_text));
	buff = PA_ALLOC(1);
	if (buff == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return;
	}
	PA_LOCK(str, char *, buff);
	str[0] = ' ';
	PA_UNLOCK(buff);
	tmp_text.text = buff;
	tmp_text.text_len = 1;
	tmp_text.text_attr = tptr;
	FE_GetTextInfo(context, &tmp_text, &text_info);
	PA_FREE(buff);
/*
	bullet->bullet_size = (text_info.ascent + text_info.descent) / 2;
	bullet->text_attr = tptr;
*/
	/* contain the bullet size so that it doesn't extend off the
	 * left side of the page since we are using a negative offset
	 * to place the bullet
	 *
	 * also subtract one to avoid the header code at the bottom
	 * from triggering and messing up the alignment
	 */
	if(bullet->bullet_size*2 >= state->x-state->win_left)
	  bullet->bullet_size = ((state->x-state->win_left)/2)-1;

    /* enforce a minumum bullet size */
    if(bullet->bullet_size < 1)
	  bullet->bullet_size = MIN_BULLET_SIZE;

	bullet->x = state->x - (2 * bullet->bullet_size);
	if (bullet->x < state->win_left)
	{
		bullet->x = state->win_left;
	}
	bullet->x_offset = 0;
	bullet->y = state->y;
	bullet->y_offset =
		(text_info.ascent + text_info.descent - bullet->bullet_size) / 2;
	bullet->width = bullet->bullet_size;
	bullet->height = bullet->bullet_size;

	*line_height = text_info.ascent + text_info.descent;
	*baseline = text_info.ascent;
}

void
lo_UpdateStateAfterBullet(MWContext * context, lo_DocState *state,
						  LO_BulletStruct *bullet,
						  int32 line_height,
						  int32 baseline)
{
	state->baseline = baseline;
	state->line_height = line_height;

	/*
	 * Clean up state
	 */
/*
 * Supporting old mistakes made in some other browsers.
 * I will put the "correct code" here, but comment it out, since
 * some other browsers allowed headers inside lists, so we should to, sigh.
	state->linefeed_state = 0;
 */
	state->at_begin_line = TRUE;
	state->cur_ele_type = LO_BULLET;
	if (bullet->x == state->win_left)
	{
		state->x += (bullet->x_offset + (2 * bullet->width));
	}

	/*
	 * Make at_begin_line be accurate
	 * so we can detect the header
	 * linefeed state deception later.
	 */
	state->at_begin_line = FALSE;
	
	/*
	 * After much soul-searching (and brow-beating
	 * by Jamie, I've agreed that really whitespace
	 * should be compressed out at the start of a
	 * list item.  They can always add non-breaking
	 * spaces if they want them.
	 * Setting trailing space true means it won't
	 * let the users add whitespace because it
	 * thinks there already is some.
	 */
	state->trailing_space = TRUE;
}

void
lo_PlaceBullet(MWContext *context, lo_DocState *state)
{
	LO_BulletStruct *bullet = NULL;
	int32 line_height, baseline;
	LO_TextAttr tmp_attr;
	LO_TextStruct tmp_text;
	LO_TextInfo text_info;
	LO_TextAttr *tptr;
	PA_Block buff;
	char *str;

	bullet = (LO_BulletStruct *)lo_NewElement(context, state, LO_BULLET, NULL, 0);
	if (bullet == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return;
	}

	bullet->type = LO_BULLET;
	bullet->next = NULL;
	bullet->prev = NULL;

	bullet->FE_Data = NULL;

	bullet->level = state->list_stack->level;

	bullet->bullet_type = state->list_stack->bullet_type;

    /* try and get a bullet type from style sheets */
    if(state && state->top_state && state->top_state->style_stack)
    {
        StyleStruct *style_struct = STYLESTACK_GetStyleByIndex(state->top_state->style_stack, 0);

        if(style_struct)
        {
            char *list_style_prop = STYLESTRUCT_GetString(style_struct,
													      LIST_STYLE_TYPE_STYLE);
			if(list_style_prop)
			{
				bullet->bullet_type = lo_list_bullet_type(list_style_prop, P_UNUM_LIST);
				XP_FREE(list_style_prop);
			}
        }
    }

	bullet->ele_attrmask = 0;

	bullet->sel_start = -1;
	bullet->sel_end = -1;

	if(state->font_stack)
    {
        lo_CopyTextAttr(state->font_stack->text_attr, &tmp_attr);
    }
    else
    {
		lo_SetDefaultFontAttr(state, &tmp_attr, context);
	}
	tptr = lo_FetchTextAttr(state, &tmp_attr);

	memset (&tmp_text, 0, sizeof (tmp_text));
	buff = PA_ALLOC(1);
	if (buff == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return;
	}
	PA_LOCK(str, char *, buff);
	str[0] = ' ';
	PA_UNLOCK(buff);
	tmp_text.text = buff;
	tmp_text.text_len = 1;
	tmp_text.text_attr = tptr;
	FE_GetTextInfo(context, &tmp_text, &text_info);
	PA_FREE(buff);

	bullet->bullet_size = (text_info.ascent + text_info.descent) / 2;
	bullet->text_attr = tptr;

	lo_FormatBullet(context, state, bullet, &line_height, &baseline);

	lo_AppendToLineList(context, state, (LO_Element *)bullet, 0);

	lo_UpdateStateAfterBullet(context, state, bullet,
							  line_height,
							  baseline);
}


void
lo_FormatBulletStr(MWContext *context, lo_DocState *state,
				   LO_TextStruct *bullet_text,
				   int32 *line_height,
				   int32 *baseline)
{
	LO_TextInfo text_info;

	FE_GetTextInfo(context, bullet_text, &text_info);

	bullet_text->x = state->x - (bullet_text->height / 2) -
		bullet_text->width;
	if (bullet_text->x < state->win_left)
	{
		bullet_text->x = state->win_left;
	}
	bullet_text->x_offset = 0;
	bullet_text->y = state->y;
	bullet_text->y_offset = 0;

	state->baseline = text_info.ascent;
	state->line_height = (intn) bullet_text->height;

	*baseline = text_info.ascent;
	*line_height = bullet_text->height;
}

void
lo_UpdateStateAfterBulletStr(MWContext *context,
							 lo_DocState *state,
							 LO_TextStruct *bullet_text,
							 int32 line_height,
							 int32 baseline)
{
	state->baseline = baseline;
	state->line_height = line_height;

	/*
	 * Clean up state
	 */
/*
 * Supporting old mistakes made in some other browsers.
 * I will put the "correct code" here, but comment it out, since
 * some other browsers allowed headers inside lists, so we should to, sigh.
	state->linefeed_state = 0;
	state->at_begin_line = FALSE;
 */
	state->at_begin_line = TRUE;
	state->cur_ele_type = LO_TEXT;
}

void
lo_PlaceBulletStr(MWContext *context, lo_DocState *state)
{
	intn len;
	char str2[22];
	char *str;
	char *str3;
	PA_Block buff;
	LO_TextStruct *bullet_text = NULL;
	LO_TextInfo text_info;
    int bullet_type;
	int32 line_height, baseline;

	bullet_text = (LO_TextStruct *)lo_NewElement(context, state, LO_TEXT, NULL, 0);
	if (bullet_text == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return;
	}

    bullet_type = state->list_stack->bullet_type;

    /* try and get a bullet type from style sheets */
    if(state && state->top_state && state->top_state->style_stack)
    {
        StyleStruct *style_struct = STYLESTACK_GetStyleByIndex(state->top_state->style_stack, 0);

        if(style_struct)
        {
            char *list_style_prop = STYLESTRUCT_GetString(style_struct,
													      LIST_STYLE_TYPE_STYLE);
			if(list_style_prop)
			{
				bullet_type = lo_list_bullet_type(list_style_prop, P_NUM_LIST);
				XP_FREE(list_style_prop);
			}
        }
    }


	if( EDT_IS_EDITOR( context )) 
	{
		switch( bullet_type ){
		case BULLET_ALPHA_L:
			str = "A";
			break;
		case BULLET_ALPHA_S:
			str = "a";
			break;
		case BULLET_NUM_S_ROMAN:
			str = "x";
			break;
		case BULLET_NUM_L_ROMAN:
			str = "X";
			break;
		default:
			str = "#";
			break;
		}
		len = XP_STRLEN(str);
		buff = PA_ALLOC(len + 1);
		if (buff != NULL)
		{
			PA_LOCK(str3, char *, buff);
			XP_STRCPY(str3, str);
			PA_UNLOCK(buff);
		}
	}
	else {
		if (bullet_type == BULLET_ALPHA_S)
		{
			buff = lo_ValueToAlpha(state->list_stack->value, FALSE, &len);
		}
		else if (bullet_type == BULLET_ALPHA_L)
		{
			buff = lo_ValueToAlpha(state->list_stack->value, TRUE, &len);
		}
		else if (bullet_type == BULLET_NUM_S_ROMAN)
		{
			buff = lo_ValueToRoman(state->list_stack->value, FALSE, &len);
		}
		else if (bullet_type == BULLET_NUM_L_ROMAN)
		{
			buff = lo_ValueToRoman(state->list_stack->value, TRUE, &len);
		}
		else
		{
			XP_SPRINTF(str2, "%d.", (intn)state->list_stack->value);
			len = XP_STRLEN(str2);
			buff = PA_ALLOC(len + 1);
			if (buff != NULL)
			{
				PA_LOCK(str, char *, buff);
				XP_STRCPY(str, str2);
				PA_UNLOCK(buff);
			}
			else
			{
				state->top_state->out_of_memory = TRUE;
			}
		}
	}

	if (buff == NULL)
	{
		return;
	}

	bullet_text->bullet_type = bullet_type;
	bullet_text->text = buff;
	bullet_text->text_len = len;
	bullet_text->text_attr = state->font_stack->text_attr;
	FE_GetTextInfo(context, bullet_text, &text_info);
	bullet_text->width = lo_correct_text_element_width(&text_info);
	bullet_text->height = text_info.ascent + text_info.descent;

	bullet_text->type = LO_TEXT;
	bullet_text->ele_id = NEXT_ELEMENT;

	lo_FormatBulletStr(context, state, bullet_text, &line_height, &baseline);

	bullet_text->anchor_href = state->current_anchor;

	bullet_text->ele_attrmask = 0;
	if (state->breakable != FALSE)
	{
		bullet_text->ele_attrmask |= LO_ELE_BREAKABLE;
	}

	bullet_text->sel_start = -1;
	bullet_text->sel_end = -1;

	bullet_text->next = NULL;
	bullet_text->prev = NULL;

	bullet_text->FE_Data = NULL;

	lo_AppendToLineList(context, state, (LO_Element *)bullet_text, 0);

	state->baseline = text_info.ascent;
	state->line_height = (intn) bullet_text->height;

	lo_UpdateStateAfterBulletStr(context, state, bullet_text, line_height, baseline);
}


static LO_Element *
lo_make_quote_text(MWContext *context, lo_DocState *state, int32 margin)
{
	PA_Block buff;
	char *str;
	LO_TextStruct *quote_text;
	LO_TextAttr tmp_attr;
	LO_TextInfo text_info;

	quote_text = (LO_TextStruct *)lo_NewElement(context, state, LO_TEXT,
							NULL, 0);
	if (quote_text == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return(NULL);
	}

	buff = PA_ALLOC(2);
	if (buff == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return(NULL);
	}
	PA_LOCK(str, char *, buff);
	str[0] = '>';
	str[1] = '\0';
	PA_UNLOCK(buff);

	quote_text->text = buff;
	quote_text->text_len = 1;
	/*
	 * Fill in default fixed font information.
	 */
	lo_SetDefaultFontAttr(state, &tmp_attr, context);
	tmp_attr.fontmask |= LO_FONT_FIXED;
	quote_text->text_attr = lo_FetchTextAttr(state, &tmp_attr);
	FE_GetTextInfo(context, quote_text, &text_info);
	quote_text->width = lo_correct_text_element_width(&text_info);
	quote_text->height = text_info.ascent + text_info.descent;

	quote_text->type = LO_TEXT;
	quote_text->ele_id = 0;
	quote_text->x = margin;
	if (quote_text->x < state->win_left)
	{
		quote_text->x = state->win_left;
	}
	quote_text->x_offset = 0;
	quote_text->y = state->y;
	quote_text->y_offset = 0;

	quote_text->anchor_href = state->current_anchor;

	quote_text->ele_attrmask = 0;
	if (state->breakable != FALSE)
	{
		quote_text->ele_attrmask |= LO_ELE_BREAKABLE;
	}

	quote_text->bullet_type = BULLET_MQUOTE;

	quote_text->sel_start = -1;
	quote_text->sel_end = -1;

	quote_text->next = NULL;
	quote_text->prev = NULL;

	quote_text->FE_Data = NULL;

	state->baseline = text_info.ascent;

	return((LO_Element *)quote_text);
}


static LO_Element *
lo_make_quote_bullet(MWContext *context, lo_DocState *state, int32 margin)
{
	PA_Block buff;
	char *str;
	LO_BulletStruct *bullet = NULL;
	LO_TextAttr tmp_attr;
	LO_TextInfo text_info;
	LO_TextStruct tmp_text;
	LO_TextAttr *tptr;
	int32 bullet_size;

	bullet = (LO_BulletStruct *)lo_NewElement(context, state, LO_BULLET, NULL, 0);
	if (bullet == NULL)
	{
#ifdef DEBUG
		assert (state->top_state->out_of_memory);
#endif
		return(NULL);
	}

	lo_SetDefaultFontAttr(state, &tmp_attr, context);
	tmp_attr.fg.red = 0;
	tmp_attr.fg.green = 0;
	tmp_attr.fg.blue = 255;
	tptr = lo_FetchTextAttr(state, &tmp_attr);

	memset (&tmp_text, 0, sizeof (tmp_text));
	buff = PA_ALLOC(1);
	if (buff == NULL)
	{
		state->top_state->out_of_memory = TRUE;
		return(NULL);
	}
	PA_LOCK(str, char *, buff);
	str[0] = ' ';
	PA_UNLOCK(buff);
	tmp_text.text = buff;
	tmp_text.text_len = 1;
	tmp_text.text_attr = tptr;
	FE_GetTextInfo(context, &tmp_text, &text_info);
	PA_FREE(buff);

	bullet_size = text_info.ascent + text_info.descent;

	if (bullet_size < 5)
	{
		bullet_size = 5;
	}

	bullet->type = LO_BULLET;
	bullet->ele_id = 0;
	bullet->x = margin;
	if (bullet->x < state->win_left)
	{
		bullet->x = state->win_left;
	}
	bullet->x_offset = 0;
	bullet->y = state->y;
	bullet->y_offset = 0;
	bullet->width = 5;
	bullet->height = bullet_size;
	bullet->next = NULL;
	bullet->prev = NULL;

	bullet->FE_Data = NULL;

	bullet->level = state->list_stack->level;
	bullet->bullet_type = BULLET_MQUOTE;
	bullet->text_attr = tptr;

	bullet->ele_attrmask = 0;

	bullet->sel_start = -1;
	bullet->sel_end = -1;

	state->baseline = text_info.ascent;

	return((LO_Element *)bullet);
}


static void
lo_insert_quote_characters(MWContext *context, lo_DocState *state)
{
	LO_Element *eptr;
	LO_Element *elist;
	lo_ListStack *lptr;

	elist = NULL;
	lptr = state->list_stack;
	while (lptr != NULL)
	{
		eptr = NULL;
		if (lptr->quote_type == QUOTE_JWZ)
		{
			eptr = lo_make_quote_text(context, state,
					lptr->mquote_x);
		}
		else if (lptr->quote_type == QUOTE_CITE)
		{
			eptr = lo_make_quote_bullet(context, state,
					lptr->mquote_x);
		}
		if (eptr != NULL)
		{
			eptr->lo_any.next = elist;
			elist = eptr;
		}
		lptr = lptr->next;
	}

	eptr = elist;
	while (eptr != NULL)
	{
		LO_Element *tmp_ele;

		tmp_ele = eptr;
		eptr = eptr->lo_any.next;
		tmp_ele->lo_any.next = NULL;

		tmp_ele->lo_any.ele_id = NEXT_ELEMENT;
		lo_AppendToLineList(context, state, tmp_ele, 0);
		state->line_height = (intn)tmp_ele->lo_any.height;
		state->at_begin_line = TRUE;
		state->cur_ele_type = LO_TEXT;
	}
}


void
lo_PlaceQuoteMarker(MWContext *context, lo_DocState *state, lo_ListStack *lptr)
{
	LO_Element *eptr;

	if (lptr != NULL)
	{
		eptr = NULL;
		if (lptr->quote_type == QUOTE_JWZ)
		{
			eptr = lo_make_quote_text(context, state,
					lptr->mquote_x);
		}
		else if (lptr->quote_type == QUOTE_CITE)
		{
			eptr = lo_make_quote_bullet(context, state,
					lptr->mquote_x);
		}
		if (eptr != NULL)
		{
			eptr->lo_any.ele_id = NEXT_ELEMENT;
			lo_AppendToLineList(context, state, eptr, 0);
			state->line_height = (intn)eptr->lo_any.height;
			state->at_begin_line = TRUE;
			if (lptr->quote_type == QUOTE_JWZ)
			{
				state->cur_ele_type = LO_TEXT;
			}
			else if (lptr->quote_type == QUOTE_CITE)
			{
				state->cur_ele_type = LO_BULLET;
			}
		}
	}
}


void lo_UpdateStateAfterLineBreak( MWContext *context, lo_DocState *state, Bool updateFE )
{
	int32 line_width;

	/*
	 * if this linefeed has a zero height, make it the height
	 * of the current font.
	 */
	if (state->line_height == 0)
	{
		state->line_height = state->text_info.ascent +
			state->text_info.descent;
		if ((state->line_height <= 0)&&(state->font_stack != NULL)&&
			(state->font_stack->text_attr != NULL))
		{
			lo_fillin_text_info(context, state);
			state->line_height = state->text_info.ascent +
				state->text_info.descent;
		}
		/*
		 * This should never happen, but we have it
		 * covered just in case it does :-)
		 */
		if (state->line_height <= 0)
		{
			state->line_height = state->default_line_height;
		}
	}

	if (state->end_last_line != NULL)
	{
		line_width = state->end_last_line->lo_any.x + state->win_right;
	}
	else
	{
		line_width = state->x + state->win_right;
	}

	if (line_width > state->max_width)
	{
		state->max_width = line_width;
	}

	/* if LineHeightStack exists use it to offset the new Y value */
    if(state->cur_ele_type != LO_SUBDOC && state->line_height_stack)
	{
		state->y += state->line_height_stack->height;
	}
	else
	{
		state->y = state->y + state->line_height;
	}

	state->x = state->left_margin;
	state->width = 0;
	state->at_begin_line = TRUE;
	state->trailing_space = FALSE;
	state->line_height = 0;
	state->break_holder = state->x;

	state->linefeed_state++;
	if (state->linefeed_state > 2)
	{
		state->linefeed_state = 2;
	}

	/*
	 * Reset the left and right margins
	 */
	lo_FindLineMargins(context, state, updateFE);
	state->x = state->left_margin;

}

void lo_UpdateFEProgressBar( MWContext *context, lo_DocState *state )
{
	if (state->is_a_subdoc == SUBDOC_NOT)
	{
		int32 percent;

		if (state->top_state->total_bytes < 1)
		{
			percent = -1;
		}
		else
		{
			percent = (100 * state->top_state->layout_bytes) /
				state->top_state->total_bytes;
			if (percent > 100)
			{
				percent = 100;
			}
		}
		if ((percent == 100)||(percent < 0)||
			(percent > (state->top_state->layout_percent + 1)))
		{
			if(!state->top_state->is_binary)
				FE_SetProgressBarPercent(context, percent);
			state->top_state->layout_percent = (intn)percent;
		}
	}
}

void lo_UpdateFEDocSize( MWContext *context, lo_DocState *state )
{	
	/*
	 * Tell the front end how big the document is right now.
	 * Only do this for the top level document.
	 */
	if ((state->is_a_subdoc == SUBDOC_NOT)
        &&(state->display_blocked == FALSE)
#ifdef EDITOR
		&&(!state->edit_relayout_display_blocked)
#endif
        )
	{

        /* 
         * Don't resize the layer if we're laying out a block. This
         * will be done when the line is added to the block.
         */
        if (!lo_InsideLayer(state))
		{
            LO_SetDocumentDimensions(context, state->max_width, state->y);
		}
	}
}


void lo_FillInLineFeed( MWContext *context, lo_DocState *state, int32 break_type, uint32 clear_type, LO_LinefeedStruct *linefeed )
{
	linefeed->type = LO_LINEFEED;
	linefeed->ele_id = NEXT_ELEMENT;
	linefeed->x = state->x;
	linefeed->x_offset = 0;
	linefeed->y = state->y;
	linefeed->y_offset = 0;
    /* 
     * If we're laying out a block, we want the contents of the block
     * to determine the size of the block. The right margin is nothing
     * more than a hint for where to wrap the contents. We don't want 
     * the linefeed to extend out to the right margin, because it 
     * unnecessarily extends the block contents.
     */
	if (state->layer_nest_level > 0) {
        linefeed->width = 0;
    }
    else
	linefeed->width = state->right_margin - state->x;
	if (linefeed->width < 0)
	{
		linefeed->width = 0;
	}
	linefeed->height = state->line_height;
	/*
	 * if this linefeed has a zero height, make it the height
	 * of the current font.
	 */
	if (linefeed->height == 0)
	{
		linefeed->height = state->text_info.ascent +
			state->text_info.descent;
		if ((linefeed->height <= 0)&&(state->font_stack != NULL)&&
			(state->font_stack->text_attr != NULL))
		{
			lo_fillin_text_info(context, state);
			linefeed->height = state->text_info.ascent +
				state->text_info.descent;
		}
		/*
		 * This should never happen, but we have it
		 * covered just in case it does :-)
		 */
		if (linefeed->height <= 0)
		{
			linefeed->height = state->default_line_height;
		}
	}
	linefeed->line_height = linefeed->height;

	linefeed->FE_Data = NULL;
	linefeed->anchor_href = state->current_anchor;

	if (state->font_stack == NULL)
	{
		LO_TextAttr tmp_attr;
		LO_TextAttr *tptr;

		/*
		 * Fill in default font information.
		 */
		lo_SetDefaultFontAttr(state, &tmp_attr, context);
		tptr = lo_FetchTextAttr(state, &tmp_attr);
		linefeed->text_attr = tptr;
	}
	else
	{
		linefeed->text_attr = state->font_stack->text_attr;
	}

	linefeed->baseline = state->baseline;

	linefeed->ele_attrmask = 0;

	linefeed->sel_start = -1;
	linefeed->sel_end = -1;

	linefeed->next = NULL;
	linefeed->prev = NULL;
	linefeed->break_type = (uint8) break_type;
	linefeed->clear_type = (uint8) clear_type;
}

Bool lo_CanUseBreakTable ( lo_DocState * state )
{
	Bool	multiByte;
	Bool	useBreakTable;
	
	useBreakTable = TRUE;
	
	lo_GetTextParseAtributes ( state, &multiByte );

#ifndef FAST_MULTI	
	/*
	 * We also need some sort of check for the script - for example Arabic should go through
	 * the old algorithm for now.
	 */
	if ( multiByte )
		{
		useBreakTable = FALSE;
		}
#endif
	
	/*
	 * Justified text is currently broken, route it through old layout for now
	 */
	if ( ( state->align_stack != NULL ) && ( state->align_stack->alignment == LO_ALIGN_JUSTIFY ) )
		{
		useBreakTable = FALSE;
		}
		
#ifndef FAST_EDITOR
	if ( EDT_IS_EDITOR( context ) )
		{
		useBreakTable = FALSE;
		}
#endif
		
#ifdef XP_MAC
	if ( !gCallNewText )
		{
		useBreakTable = FALSE;
		}
#endif

	return useBreakTable;
}

/*
 * Is the current text that's being layed out using the break table layout algorithm?
 */
Bool lo_UseBreakTable ( LO_TextBlock * block )
{
	Bool			useBreakTable;
	
	useBreakTable = FALSE;
	
	if ( block != NULL )
		{
		if ( block->break_table != NULL )
			{
			useBreakTable = TRUE;
			}
		}
	
	return useBreakTable;
}

int32 lo_compute_text_basline_inc ( lo_DocState * state, LO_TextBlock * block, LO_TextStruct * text_data )
{
	int32	line_inc;
	int32	baseline_inc;
	
	/*
	 * The baseline of the text element just added to the line may be
	 * less than or greater than the baseline of the rest of the line
	 * due to font changes.  If the baseline is less, this is easy,
	 * we just increase y_offest to move the text down so the baselines
	 * line up.  For greater baselines, we can't move the text up to
	 * line up the baselines because we will overlay the previous line,
	 * so we have to move all the previous elements in this line down.
	 *
	 * If the baseline is zero, we are the first element on the line,
	 * and we get to set the baseline.
	 */
	
	line_inc = 0;
	baseline_inc = 0;
	
	if (state->baseline == 0)
	{
		state->baseline = block->ascent;
		if (state->line_height < (state->baseline + block->descent))
		{
			state->line_height = state->baseline + block->descent;
		}
	}
	else if (block->ascent < state->baseline)
	{
		text_data->y_offset = state->baseline - block->ascent;
		if ((text_data->y_offset + block->ascent + block->descent) > state->line_height)
		{
			line_inc = text_data->y_offset +
				block->ascent +
				block->descent -
				state->line_height;
		}
	}
	else
	{
		baseline_inc = block->ascent - state->baseline;
		if ((text_data->y_offset + block->ascent + block->descent - baseline_inc) > state->line_height)
		{
			line_inc = text_data->y_offset +
				block->ascent +
				block->descent -
				state->line_height - baseline_inc;
		}
	}

	state->baseline += (intn) baseline_inc;
	state->line_height += (intn) (baseline_inc + line_inc);
	
	return baseline_inc;
}


void lo_FlushTextElement ( MWContext * context, lo_DocState * state, LO_TextBlock * block, LO_TextStruct * element );
void lo_FlushTextElement ( MWContext * context, lo_DocState * state, LO_TextBlock * block, LO_TextStruct * element )
{
	int32	baseline_inc;
	
	/* update the text layout state as if we had just layed this element out */
	block->buffer_read_index = element->block_offset;

	state->width = element->width;

	element->ele_id = NEXT_ELEMENT;
	element->x = state->x;
	element->y = state->y;
	element->y_offset = 0;

	element->sel_start = -1;
	element->sel_end = -1;

	baseline_inc = lo_compute_text_basline_inc ( state, block, element );
		
	element->prev = NULL;
	element->next = NULL;
	lo_AppendToLineList ( context, state, (LO_Element *) element, baseline_inc );

	state->line_buf_len = 0;
	state->x += state->width;
	state->width = 0;
	state->cur_ele_type = LO_NONE;

	/* update the element list for this block */
	if ( block->startTextElement == NULL )
		{
		block->startTextElement = element;
		}

	block->endTextElement = element;
}

uint32 lo_FindBlockOffset ( LO_TextBlock * block, LO_TextStruct * fromElement )
{
	uint32			blockOffset;
	LO_Element *	endElement;
	LO_Element *	element;
	
	blockOffset = 0;
		
	if ( fromElement != NULL )
		{
		/* run through all elements in this text block. the correct block offset is belongs to */
		/* the previous element in this list */
		element = (LO_Element *) block->startTextElement;
		endElement = (LO_Element *) block->endTextElement;
		
		while ( element != NULL )
			{
			if ( element == endElement )
				{
				break;
				}
			
			/* is it the one we're looking for? */
			if ( element == (LO_Element *) fromElement )
				{
				break;
				}
				
			if ( element->type == LO_TEXT )
				{
				blockOffset = element->lo_text.block_offset;
				}
			
			element = element->lo_any.next;
			}
		}
		
	return blockOffset;
}

void lo_RelayoutTextElements ( MWContext * context, lo_DocState * state, LO_TextBlock * block, LO_TextStruct * fromElement )
{
	LO_Element *	next;
	LO_Element *	element;
	LO_Element *	startElement;
	LO_Element *	endElement;
	uint32			lineWidth;
	Bool			done;
	Bool			fastPreformat;
	
	/* start at the beginning of this text block */
	block->buffer_read_index = 0;
	block->break_read_index = 0;
	
	/* we will rebuild the element list for this block as we go */
	startElement = (LO_Element *) block->startTextElement;
	endElement = (LO_Element *) block->endTextElement;

	block->startTextElement = NULL;
	block->endTextElement = NULL;
	
	if ( fromElement == NULL )
		{
		fromElement = (LO_TextStruct *) startElement;
		}
	
	/* sanity check */
	if ( fromElement == NULL )
		{
		return;
		}
	
	/*
	 * We need to run through all elements up to start element and place them
	 * back in the line list. We also need to recycle anything that's not text
	 * (linefeeds and bullets)
	 */
	element = startElement;
	
	while ( element != (LO_Element *) fromElement )
		{
		next = lo_tv_GetNextLayoutElement ( state, element, FALSE );
		
		/* if this element is text, put it on the line list */
		switch ( element->lo_any.type )
			{
			case LO_TEXT:
				lo_PrepareElementForReuse ( context, state, element, element->lo_any.edit_element,
						element->lo_any.edit_offset );
				lo_FlushTextElement ( context, state, block, (LO_TextStruct *) element );
				break;
			
			case LO_LINEFEED:
				/* recycle this element */
				element->lo_any.prev = NULL;
				element->lo_any.next = NULL;
				lo_RecycleElements( context, state, element );
				
#if 0
                /* toshok: I'm #if 0'ing these two calls to
                   lo_rl_AddSoftBreakAndFlushLine, since we shouldn't
                   be adding these line breaks while we're consuming
                   the old ones.  They will be added again by the text
                   layout machinery.  This fixes the problem of blank
                   regions in <pre>'s growing with every resize.

                   An alternative for this would be to just remove the
                   \n's from the pre text once we've inserted the line
                   breaks.*/

				/* and then add a new linefeed */
				lo_rl_AddSoftBreakAndFlushLine ( context, state );
#endif
				break;
			
			default:
				element->lo_any.prev = NULL;
				element->lo_any.next = NULL;
				lo_RecycleElements( context, state, element );
				break;
			}
		
		element = next;
		}
	
	/*
	 * Now, we may not need to lay any of the following elements out as out
	 * layout environment may not have changed. So, run through the remaining
	 * elements until we find the first one that's changed.
	 *
	 * We have to layout the last element using the proper code path so that
	 * we can correctly update the state record with the last break position and
	 * other flags.
	 *
	 * Column and line wrapped preformatted text can always reuse the elements as
	 * it's wrapping will never change. Word wrapped preformatted text may change
	 * if the document width changes.
	 */
	
	element = (LO_Element *) fromElement;
	done = element == endElement;
	fastPreformat = ( block->format_mode == PRE_TEXT_YES ) || ( block->format_mode == PRE_TEXT_COLS );
	
	while ( ( !done ) && ( element != NULL ) )
		{
		next = lo_tv_GetNextLayoutElement ( state, element, FALSE );
		
		/* if this element is text, see if it will fit. otherwise recycle it */
		switch ( element->lo_any.type )
			{
			case LO_TEXT:
				/*
				 * We only assume this element can be reused if the line width is exactly
				 * the same as last time. If the line is longer, we could potentially
				 * reuse this element (the next one may appear on this line as well) but
				 * we won't be able to set the state's old_break_position, which may be needed!
				 *
				 * We can also always flush column or line wrapped preformatted text (word wrapped
				 * preformatted text may need to be layed out again as it's wrapping may change).
				 */
				lineWidth = state->right_margin - state->x;
				
				if ( fastPreformat || ( element->lo_text.doc_width == lineWidth ) )
					{
					lo_PrepareElementForReuse ( context, state, element, element->lo_any.edit_element,
							element->lo_any.edit_offset );
					lo_FlushTextElement ( context, state, block, (LO_TextStruct *) element );
					}
				else
					{
					/* the size has changed, we must relayout this element */
					done = TRUE;
					}
				
				break;
			
			case LO_LINEFEED:
				/* recycle this element */
				element->lo_any.prev = NULL;
				element->lo_any.next = NULL;
				lo_RecycleElements( context, state, element );
				
#if 0
                /* toshok: I'm #if 0'ing these two calls to
                   lo_rl_AddSoftBreakAndFlushLine, since we shouldn't
                   be adding these line breaks while we're consuming
                   the old ones.  They will be added again by the text
                   layout machinery.  This fixes the problem of blank
                   regions in <pre>'s growing with every resize. 

                   An alternative for this would be to just remove the
                   \n's from the pre text once we've inserted the line
                   breaks.*/

				/* and then add a new linefeed */
				lo_rl_AddSoftBreakAndFlushLine ( context, state );
#endif
				break;
			
			default:
				element->lo_any.prev = NULL;
				element->lo_any.next = NULL;
				lo_RecycleElements( context, state, element );
				break;
			}
			
		element = next;
		
		/*
		 * if we're at the last element, bail as we always need to layout this
		 * one so that the state record is updated properly
		 */
		if ( element == endElement )
			{
			break;
			}
		}
	
	/*
	 * now run through and delete all the remaining elements in this text block.
	 */
	while ( element != NULL )
		{
		next = lo_tv_GetNextLayoutElement ( state, element, FALSE );

		element->lo_any.prev = NULL;
		element->lo_any.next = NULL;
		lo_RecycleElements( context, state, element );
		
		if ( element == endElement )
			{
			break;
			}
			
		element = next;
		}
}

LO_Element * lo_RelayoutTextBlock ( MWContext * context, lo_DocState * state, LO_TextBlock * block, LO_TextStruct * fromElement )
{
	LO_Element *	next;
	LO_Element *	endElement;
	LO_Element *	lo_ele;

	state->cur_text_block = block;
	
	/*
	 * Update some of the global state information
	 */
	state->breakable = block->ele_attrmask & LO_ELE_BREAKABLE;
	
	/* get the next element for the overall relayout process */
	if ( block->endTextElement != NULL )
		{
		next = lo_tv_GetNextLayoutElement ( state, (LO_Element *) block->endTextElement, FALSE );
		}
	else
		{
		next = lo_tv_GetNextLayoutElement ( state, (LO_Element *) block, FALSE );
		}

	/*
	 * In the relayout case we might be able to skip layout for some elements that have not changed.
	 * This happens frequenty for typing in the editor and occasionaly in table layout (very occasionally
	 * on resizes).
	 *
	 * To do this, we run through the text elements until we come across one whose width does not match the
	 * layout width or whose text has changed. That element and all others are then recycled.
	 */
	
	if ( EDT_IS_EDITOR( context ) )
		{
		/*
		 * for the editor we don't want to relayout the text elements that precede the current one. we just
		 * want to start laying out afresh from this specified element to the end of the text block. the editor
		 * will take care of merging the elements back in
		 */
		block->buffer_read_index = lo_FindBlockOffset ( block, fromElement );

		state->edit_current_element = block->edit_element;
		state->edit_current_offset = 0;
		
		/* if we're laying this element out, then we need to reinsert it on the line list */
		if ( ( block->startTextElement == fromElement ) || ( fromElement == NULL ) )
			{
			/* record the current edit element for later use */
			lo_PrepareElementForReuse ( context, state, (LO_Element *) block, block->edit_element,
					block->edit_offset );
			
			block->ele_id = NEXT_ELEMENT;
			block->x = state->x;
			block->y = state->y;
			block->x_offset = 0;
			block->y_offset = 0;
			
			/* free all the text elements that we're going to reflow */
			endElement = (LO_Element *) block->endTextElement;
			lo_ele = (LO_Element *) block->startTextElement;
			while ( lo_ele != NULL )
				{
				LO_Element * next_ele;
				
				next_ele = lo_ele->lo_any.next;
				
				lo_ele->lo_any.next = NULL;
				lo_ele->lo_any.prev = NULL;
				lo_RecycleElements( context, state, lo_ele );
				
				if ( lo_ele == endElement )
					{
					break;
					}
				
				lo_ele = next_ele;
				}

			block->startTextElement = NULL;
			block->endTextElement = NULL;
			
			block->prev = NULL;
			block->next = NULL;
			lo_AppendToLineList ( context, state, (LO_Element *) block, 0 );
			}
		else
			{
			LO_TextStruct * lastText;
			Bool			hitFromElement;
			
			/*
			 * We're reflowing from somewhere within the text block (past the first element). We need
			 * to reset the endTextElement as well as recycle from the fromElement to the end of the text block
			 */
			
			hitFromElement = FALSE;
			endElement = (LO_Element *) block->endTextElement;
			lo_ele = (LO_Element *) block->startTextElement;
			lastText = block->startTextElement;

			while ( lo_ele != NULL )
				{
				LO_Element * next_ele;
				
				next_ele = lo_ele->lo_any.next;
				
				if ( lo_ele == (LO_Element *) fromElement )
					{
					hitFromElement = TRUE;
					}
					
				/* if we've found the fromElement, we need to start recycling */
				if ( hitFromElement )
					{
					lo_ele->lo_any.next = NULL;
					lo_ele->lo_any.prev = NULL;
					lo_RecycleElements( context, state, lo_ele );
					}
				
				if ( lo_ele == endElement )
					{
					break;
					}
				
				/* if we haven't hit the from element and this is a text element, it may be the new end */
				/* element for the block */
				if ( !hitFromElement && ( lo_ele->type == LO_TEXT ) )
					{
					lastText = &lo_ele->lo_text;
					}
				
				lo_ele = next_ele;
				}
			
			/* reset the endElement for the block */
			block->endTextElement = lastText;
			}
		}
	else
		{
		/* put the text block back in the line list and then add any existing elements that we can */
		block->prev = NULL;
		block->next = NULL;
		block->ele_id = NEXT_ELEMENT;
		block->x = state->x;
		block->y = state->y;
		lo_AppendToLineList ( context, state, (LO_Element *) block, 0 );

		lo_RelayoutTextElements ( context, state, block, fromElement );
		}
		
	/*
	 * Because we're lame for now we just delete all the old linefeeds and lay the text out afresh
	 */
	
	/* Tell everybody we're laying out text */
	if (state->cur_ele_type != LO_TEXT)
		{
		lo_FreshText(state);
		state->cur_ele_type = LO_TEXT;
		}

	/* actually layout the text */
	state->preformatted = block->format_mode;
	
	if ( lo_UseBreakTable ( block ) )
		{
		lo_SetupBreakState ( block );
		
		/* be sure to set up the editor offset */
		if ( EDT_IS_EDITOR( context ) )
			{
			state->edit_force_offset = TRUE;
			state->edit_current_offset = block->buffer_read_index;
			}
			
		lo_LayoutTextBlock ( context, state, TRUE );
		}
	else
	if ( block->format_mode == PRE_TEXT_NO )
		{
		lo_LayoutFormattedText ( context, state, block );
		}
	else
		{
		lo_LayoutPreformattedText ( context, state, block );
		}
	
	/*
	 * If there's text left in the line buffer, then flush it.
	 *
	 * BRAIN DAMAGE: We don't want to do that here - there may be a following text block
	 * that continues this same text buffer.
	 */
	lo_FlushLineBuffer(context, state);
		
	return next;
}

Bool lo_ChangeText ( LO_TextBlock * block, char * text )
{
	uint32	length;
	/*
	 * Reset the text contents for this text block. If we have a break table,
	 * then we need to rebuild it.
	 */
	
#ifdef LOCAL_DEBUG
	XP_TRACE( ("Setting text for text block %lx to %s", block, text) );
#endif
	
	length = XP_STRLEN ( text ) + 1;
	if ( length > block->buffer_write_index )
		{
		if ( !lo_GrowTextBlock ( block, length - block->buffer_write_index ) )
			{
			return FALSE;
			}
		}
		
	if ( lo_UseBreakTable ( block ) )
		{
		block->buffer_write_index = 0;
		block->last_buffer_write_index = 0;
		block->break_write_index = 0;
		block->last_break_offset = 0;
		
		lo_AppendTextToBlock ( NULL, NULL, block, text );
		}
	else
		{
		/* for old style text we just want to replace the buffer */
		XP_BCOPY ( text, (char *) block->text_buffer, length );
		block->buffer_write_index = length;
		}
	
	return TRUE;
}

/*
 *
 * ======================================================================================================
 * 
 *											New text layout
 *
 * ======================================================================================================
 */

/*
 * Break Table constants
 */

#define	MAX_NATURAL_LENGTH		0xAL
#define	LINE_FEED				0xBL
#define	BYTE_LENGTH				0xCL
#define	WORD_LENGTH				0xDL
#define	LONG_LENGTH				0xEL
#define	MULTI_BYTE				0xFL

#define	MULTI_BYTE_DATA_SIZE	16

/*
 * Break Position Magic Constants
 */
#define	OVERRAN_BREAK_TABLE	-1
#define	BREAK_LINEFEED		-2

#define	TEXT_BUFFER_INC		256
#define	BREAK_TABLE_INC		64

typedef struct BreakState
{
	uint32		buffer_read_index;
	uint32		break_read_index;
	uint32		multibyte_index;
	uint32		multibyte_length;
	uint32		last_line_break;
	uint32		lineLength;
} BreakState;

static LO_TextBlock * lo_CurrentTextBlock ( MWContext * context, lo_DocState * state );

/* routines to walk through our break table */
static uint8 * lo_GetNextTextPosition ( LO_TextBlock * block, uint32 * outWordLength, uint32 * outLineLength, Bool * canBreak );
static uint8 * lo_GetPrevTextPosition ( LO_TextBlock * block, uint32 * outWordLength, uint32 * outLineLength, Bool * canBreak );
static uint8 * lo_RestoreBreakState ( LO_TextBlock * block, BreakState * state, uint32 * lineLength );
static void lo_SetLineBreak ( LO_TextBlock * block, Bool skipSpace );
static uint8 * lo_GetLineStart ( LO_TextBlock * block );
static void lo_SkipCharacter ( LO_TextBlock * block );
static Bool lo_SkipInitialSpace ( LO_TextBlock * block );

static Bool lo_SetBreakPosition ( LO_TextBlock * block );
static Bool lo_SetMultiByteRun ( LO_TextBlock * block, int32 charSize, Bool breakable, Bool eachCharBreakable );
static Bool lo_SetBreakCommand ( LO_TextBlock * block, uint32 command, uint32 commandLength );
static void lo_CopyText ( uint8 * src, uint8 * dst, uint32 length );
static void lo_CopyTextToLineBuffer ( lo_DocState * state, uint8 * src, uint32 length );

static uint32  lo_FindLineBreak ( MWContext * context, lo_DocState * state, LO_TextBlock * block, uint8 * text,
	uint16 * widthTable, uint32 * width, int32 * minWidth, Bool * allTextFits );

/* the parsers */
static void lo_ParseSingleText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text );
static void lo_ParseSinglePreformattedText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text );
static void lo_ParseDoubleText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text );
static void lo_ParseDoublePreformattedText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text );

extern int32 lo_correct_text_element_width(LO_TextInfo *text_info);

#ifdef LOG
static Bool gHaveLog = FALSE;
#endif


/*
 * Some helpful macros for code inlining
 */

#define	SAVE_BREAK_STATE(block,state,line_length)				\
	(state)->buffer_read_index = (block)->buffer_read_index;	\
	(state)->break_read_index = (block)->break_read_index;		\
	(state)->multibyte_index = (block)->multibyte_index;		\
	(state)->multibyte_length = (block)->multibyte_length;		\
	(state)->last_line_break = (block)->last_line_break;		\
	(state)->lineLength = line_length;
	

static LO_TextBlock *
lo_CurrentTextBlock ( MWContext * context, lo_DocState * state )
{
	LO_TextBlock * textBlock;
	
	textBlock = state->cur_text_block;
	if ( textBlock == NULL )
		{
		textBlock = (LO_TextBlock *)lo_NewElement ( context, state, LO_TEXTBLOCK, NULL, 0 );

		textBlock->type = LO_TEXTBLOCK;
		textBlock->x_offset = 0;
		textBlock->ele_id = NEXT_ELEMENT;
		textBlock->x = state->x;
		textBlock->y = state->y;
		textBlock->y_offset = 0;
		textBlock->width = 0;
		textBlock->height = 0;
		textBlock->line_height = 0;
		textBlock->next = NULL;
		textBlock->prev = NULL;
		textBlock->text_attr = NULL;
		textBlock->anchor_href = NULL;
		textBlock->ele_attrmask = 0;
		textBlock->format_mode = 0;
		
		textBlock->startTextElement = NULL;
		textBlock->endTextElement = NULL;
		
		textBlock->text_buffer = NULL;
		textBlock->buffer_length = 0;
		textBlock->buffer_write_index = 0;
		textBlock->last_buffer_write_index = 0;
		textBlock->buffer_read_index = 0;
		textBlock->last_line_break = 0;
		
		textBlock->break_table = NULL;
		textBlock->break_length = 0;
		textBlock->break_write_index = 0;
		textBlock->break_read_index = 0;
		textBlock->last_break_offset = 0;
		textBlock->multibyte_index = 0;
		textBlock->multibyte_length = 0;
		
		textBlock->old_break = NULL;
		textBlock->old_break_pos = 0;
		textBlock->old_break_width = 0;
		
		textBlock->totalWidth = 0;
		textBlock->totalChars = 0;
		textBlock->break_pending = 0;
		textBlock->last_char_is_whitespace = 0;
		
		textBlock->ascent = 0;
		textBlock->descent = 0;
		
		/* BRAIN DAMAGE: Add this enum to lo_ele.h! */
		textBlock->text_buffer = XP_ALLOC ( TEXT_BUFFER_INC );
		textBlock->buffer_length = TEXT_BUFFER_INC;
		
		textBlock->break_table = XP_ALLOC ( BREAK_TABLE_INC );
		textBlock->break_length = BREAK_TABLE_INC * 2;
		
		/*
		 * Since we're creating a new text block, grab some of the text state out of the
		 * layout state.
		 */
		textBlock->anchor_href = state->current_anchor;
		
		if ( state->font_stack != NULL )
			{
			textBlock->text_attr = state->font_stack->text_attr;
			}
			
		if (state->breakable != FALSE)
			{
			textBlock->ele_attrmask |= LO_ELE_BREAKABLE;
			}
		
		state->cur_text_block = textBlock;		
		
		lo_AppendToLineList ( context, state, (LO_Element *) textBlock, 0 );
		}
	
	return textBlock;
}

void lo_AppendTextToBlock ( MWContext *context, lo_DocState *state, LO_TextBlock * block, char *text )
{
	Bool	parseAllText;
	Bool	multiByte;
	
	/*
	 * We have several cases in which we can just bail:
	 *	1. The text string and the line buffer is empty.
	 *	2. The text string is all whitespace and we already have a trailing space.
	 */
	
	if ( ( state != NULL ) && ( state->line_buf_len == 0 ) )
		{
		char *	t_ptr;

		/* if this string is empty, bail */
		if ( *text == '\0' )
			{
			return;
			}
		
		/* if it's only whitespace and we have a trailing space, then bail */
		if ( state->trailing_space )
			{
			t_ptr = text;
			
			while ( *t_ptr != '\0' )
				{
				if ( !XP_IS_SPACE( *t_ptr ) )
					{
					break;
					}
				
				++t_ptr;
				}
			
			if ( ( *t_ptr == '\0' ) && ( t_ptr != text ) )
				{
				return;
				}
			}
		}
	
	/*
	 * If we don't have a block, create one if we have a valid state record. Otherwise we
	 * have an error
	 */
	
	if ( block == NULL )
		{
		/* the editor may call us with a NULL state and context record, in this case we must always have a block */
		XP_ASSERT(( state != NULL ) && ( context != NULL ));
		if ( ( state != NULL ) && ( context != NULL ) )
			{
			block = lo_CurrentTextBlock ( context, state );
			}
		}
	
	/*
	 * OPTIMIZATION: If the parser could tell us if we have a split buffer then we could intelligently set
	 * parseAllText here and not buffer words that we think may be split across a buffer but in reality are
	 * whole.
	 */
	 
	/*
	 * If we're in an editor context, then we can always parse the whole buffer of text, we never need to
	 * worry about partial buffers being passed to us.
	 */
	parseAllText = EDT_IS_EDITOR( context );
		
	/*
	 * Scan through the text, removing whitespace and adding words to the text buffer as we come across
	 * them.
	 *
	 * Particular things we have to deal with:
	 *		- Preformatted text (normal, word wrapped and column wrapped)
	 *		- Normal single byte text
	 *		- Multibyte text
	 *		- non-breaking spaces
	 */
	
	lo_GetTextParseAtributes ( state, &multiByte );

	if ( FALSE || multiByte )
		{
		lo_ParseDoubleText ( state, block, parseAllText, text );
		}
	else
		{
		lo_ParseSingleText ( state, block, parseAllText, text );
		}
}

static void
lo_GetTextParseAtributes ( lo_DocState * state, Bool * multiByte )
{
	int16	charset;
	
	*multiByte = FALSE;
	
	if ( state != NULL )
		{
		charset = state->font_stack->text_attr->charset;
		if ( (INTL_CharSetType ( charset ) != SINGLEBYTE ) && !( INTL_CharSetType ( charset ) & CS_SPACE ) )
			{
			*multiByte = TRUE;
			}
		}
}

static void
lo_ParseSingleText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text )
{
	uint8 *			t_ptr;
	uint8 *			w_start;
	uint8 *			w_end;
	uint8 *			line_buff;
	uint32			w_length;
	Bool			skipped_space;
	uint32			textLength;
	
	/* check for textTransform properties and aply them */
	if( ( state != NULL ) && ( state->top_state && state->top_state->style_stack ) )
		{
		char * property;
		
		StyleStruct *style_struct = STYLESTACK_GetStyleByIndex( state->top_state->style_stack, 0);

		if( style_struct )
			{
			property = STYLESTRUCT_GetString(style_struct, TEXT_TRANSFORM_STYLE);
			if(property)
				{
				lo_transform_text_from_string_method(text, property);
				}
			}
		}

	t_ptr = (uint8 *) text;
	skipped_space = FALSE;	
	
	if ( ( state != NULL ) && ( state->line_buf_len > 0 ) )
		{
		PA_LOCK(line_buff, uint8 *, state->line_buf);
		textLength = state->line_buf_len;
		
		if ( *line_buff == '\0' )
			{
			line_buff = NULL;
			textLength = 0;
			state->line_buf_len = 0;
			}
		}
	else
		{
		line_buff = NULL;
		textLength = 0;
		}
		
	/* Make sure the text block has enough space to hold this block of text */
	textLength += XP_STRLEN ( text );
	lo_GrowTextBlock ( block, textLength + 1 );
	
	/*
	 * If there's anything in the line buffer, then pull that out now
	 */
	if ( line_buff != NULL )
		{
		/* was there any trailing space left for us? */
		skipped_space = state->trailing_space;
			
		/* skip any white space at the head of our text */
		while ( ( *line_buff != '\0' ) && XP_IS_SPACE ( *line_buff ) )
			{
			line_buff++;
			state->line_buf_len--;
			skipped_space = TRUE;
			}
		
		/*
		 * if we skipped any space and we're not at the end of the buffer, 
		 * then insert a break position
		 */
		if ( *line_buff != '\0' )
			{
			if ( skipped_space )
				{
				if ( !lo_SetBreakPosition ( block ) )
					{
					state->top_state->out_of_memory = TRUE;
					return;
					}
				
				/*
				 * If the space was real whitespace and not a trailing space from a previous layout,
				 * then copy the space to the text block.
				 */
				if ( !state->trailing_space )
					{
					block->text_buffer[ block->buffer_write_index ] = ' ';
					block->buffer_write_index++;
					block->last_buffer_write_index++;
					skipped_space = TRUE;
					}

				skipped_space = FALSE;
				}
			
			/* copy in the line buffer. it is only allowed to be one word */
			lo_CopyText ( line_buff, &block->text_buffer[ block->buffer_write_index ], state->line_buf_len );
			block->buffer_write_index += state->line_buf_len;
			state->line_buf_len = 0;
			}
		}
	
	/*
	 * The last chunk of text may have left a single piece of whitespace at the end of the buffer. If so,
	 * we need to skip any whitespace at the front of the buffer so we don't have to worry about this inside
	 * the main loop.
	 *
	 * When called from the editor, we may not have a state record. However, we also won't need to worry
	 * about this case as it will have taken care of it for us.
	 */
	if ( ( state != NULL ) && ( state->trailing_space ) && ( *t_ptr != '\0' ) )
		{
		skipped_space = TRUE;
		
		while ( ( *t_ptr != '\0' ) && XP_IS_SPACE ( *t_ptr ) )
			{
			t_ptr++;
			}
		}
	
	while ( *t_ptr != '\0' )
		{
		w_start = t_ptr;
		
		/* skip past any whitespace before this word. */
		while ( ( *w_start != '\0' ) && XP_IS_SPACE ( *w_start ) )
			{
			w_start++;
			}
						
		/* run through the text and find the end of the word */
		w_end = w_start;
		w_length = 0;
		
		while ( ( *w_end != '\0' ) && !XP_IS_SPACE ( *w_end ) )
			{
			w_end++;
			w_length++;
			}

		/*
		 * If we hit the end of the buffer then we may be inside a partial word. This can cause
		 * problems with interword kerning, multibyte characters and other contextually sensitive
		 * script systems.
		 *
		 * We buffer this word in the line_buff. If this is truly the end of the text, then we'll
		 * be called to flush the last line. We'll do this by appending this word to our text block
		 * and then laying out the last of the text.
		 *
		 * If this word is just split across a buffer, then it will be inserted to the beginning of
		 * the next text block.
		 *
		 * If the caller tells us to parse the whole buffer, then we don't care.
		 */
		
		if ( !parseAllText && ( *w_end == '\0' ) && ( w_length > 0 ) && ( state != NULL ) )
			{
			if ( w_start != t_ptr )
				{
				/* put a space in the line buffer */
				lo_CopyTextToLineBuffer ( state, (uint8 *) " ", 1 );
				if ( state->top_state->out_of_memory )
					{
					return;
					}
				}
				
			/* put this text in the line buffer */
			lo_CopyTextToLineBuffer ( state, w_start, w_length );
			if ( state->top_state->out_of_memory )
				{
				return;
				}
				
			/* we now have text after the whitespace */
			skipped_space = FALSE;
			
			break;
			}
					
		/*
		 * If we skipped some white space, then we know that we can put a break here.
		 */
		if ( w_start != t_ptr )
			{
			skipped_space = TRUE;
			
			/* add the break position */
			if ( !lo_SetBreakPosition ( block ) )
				{
				if ( state != NULL )
					{
					state->top_state->out_of_memory = TRUE;
					}
				return;
				}

			if ( block->buffer_length < ( block->buffer_write_index + 1 ) )
				{
				if ( !lo_GrowTextBlock ( block, 1 ) )
					{
					if ( state != NULL )
						{
						state->top_state->out_of_memory = TRUE;
						}
					return;
					}
				}
			
			block->text_buffer[ block->buffer_write_index ] = ' ';
			block->buffer_write_index++;
			
			/*
			 * BRAIN DAMAGE: Add a new field to the text block struct to indicate how many
			 * chars to skip when calculating the length of the next run.
			 */
			block->last_buffer_write_index++;
			}
		else
			{
			skipped_space = FALSE;
			}
		
		/* if we found anything, add it to the buffer */
		if ( w_length > 0 )
			{
			if ( block->buffer_length < ( block->buffer_write_index + w_length ) )
				{
				if ( !lo_GrowTextBlock ( block, w_length ) )
					{
					if ( state != NULL )
						{
						state->top_state->out_of_memory = TRUE;
						}
					return;
					}
				}
			
			lo_CopyText ( w_start, &block->text_buffer[ block->buffer_write_index ], w_length );
			block->buffer_write_index += w_length;
			
			/* we now have text after the whitespace */
			skipped_space = FALSE;
			}
		
		t_ptr = w_end;
		}
		
		/*
		 * Remember whether the last thing we added was whitespace
		 */
		block->last_char_is_whitespace = skipped_space;
}


/*
 * Parse State Table for two byte text
 */

typedef enum {
	kUnprohibited = PROHIBIT_NOWHERE,
	kBeginProhibited = PROHIBIT_BEGIN_OF_LINE,
	kEndProhibited = PROHIBIT_END_OF_LINE,
	kWordBreakProhibited = PROHIBIT_WORD_BREAK,
	kSingleByte,
	kBreakableSpace,
	kFlushFinalRun,
	kNumCharTypes
} ParseState;

/*
 * Flags for the state table command
 */

#define	SET_BREAKABLE			0x01		/* dump the current run as a single breakable run */
#define	SET_MULTI_BREAKABLE		0x02		/* dump the current run as a mutibyte breakable run */
#define	DUMP_TEXT_AND_BREAK		0x04		/* dump the text to the buffer with no break point and then stop processing */
#define	CARRY_LAST_CHAR			0x08		/* move the last char of this run into the next state */
#define	INC_RUN_LENGTH			0x10		/* inc the length of this run (we could do without this one) */
#define	INSERT_WHITESPACE		0x20		/* insert a single whitespace into the text buffer */
#define	SKIP_CHAR				0x40		/* skip the current char */
#define	MAINTAIN_CHAR_TYPE		0x80		/* don't change the curCharType */

/*
 * Things to Note:
 *
 * 1. SET_BREAKABLE means to insert a normal break command. This run can be broken at the end of the run.
 * 2. SET_MULTI_BREAKABLE means that we have a run which can be broken at the end of every character.
 *
 */

/*
 * The mutibyte breakable run data word is 16 bits big. It is organized as:
 *
 *	BIT:	15	14	13			12	11	10	9	8	7	6	5	4	3	2	1	0
 *	FIELD:	CHAR SIZE			RUN LENGTH
 */

#define	MULTI_CHAR_SIZE_MASK	0xE000
#define	MULTI_CHAR_SIZE_SHIFT	12

#define	MULTI_LENGTH_MASK		0x1FFF

/*
 * The state table
 */

static uint8 gParseTable[ kNumCharTypes ][ kNumCharTypes ] = 
{
	/*	current char			next char					operations */
	
/* Unprohibited two byte text */
	/*	kUnprohibited,			kUnprohibited,			*/	INC_RUN_LENGTH,
	/*	kUnprohibited,			kBeginProhibited,		*/	SET_MULTI_BREAKABLE + CARRY_LAST_CHAR,
	/*	kUnprohibited,			kEndProhibited,			*/	SET_MULTI_BREAKABLE,
	/*	kUnprohibited,			kWordBreakProhibited,	*/	SET_MULTI_BREAKABLE,
	/*	kUnprohibited,			kSingleByte,			*/	SET_MULTI_BREAKABLE,
	/*	kUnprohibited,			kBreakableSpace,		*/	SET_MULTI_BREAKABLE + INSERT_WHITESPACE + SKIP_CHAR,
	/*	kUnprohibited,			kFlushFinalRun,			*/	SET_MULTI_BREAKABLE,
	
/* Begin Line Prohibited two byte text */
	/*	kBeginProhibited,		kUnprohibited,			*/	SET_BREAKABLE,
	/*	kBeginProhibited,		kBeginProhibited,		*/	INC_RUN_LENGTH,
	/*	kBeginProhibited,		kEndProhibited,			*/	SET_BREAKABLE,
	/*	kBeginProhibited,		kWordBreakProhibited,	*/	SET_BREAKABLE,
	/*	kBeginProhibited,		kSingleByte,			*/	SET_BREAKABLE,
	/*	kBeginProhibited,		kBreakableSpace,		*/	SET_BREAKABLE + INSERT_WHITESPACE + SKIP_CHAR,
	/*	kBeginProhibited,		kFlushFinalRun,			*/	DUMP_TEXT_AND_BREAK,
	
/* End Line Prohibited two byte text */
	/*	kEndProhibited,			kUnprohibited,			*/	INC_RUN_LENGTH + SET_BREAKABLE,
	/*	kEndProhibited,			kBeginProhibited,		*/	INC_RUN_LENGTH + SET_BREAKABLE,
	/*	kEndProhibited,			kEndProhibited,			*/	INC_RUN_LENGTH,
	/*	kEndProhibited,			kWordBreakProhibited,	*/	INC_RUN_LENGTH,
	/*	kEndProhibited,			kSingleByte,			*/	INC_RUN_LENGTH,
	/*	kEndProhibited,			kBreakableSpace,		*/	INC_RUN_LENGTH + MAINTAIN_CHAR_TYPE,	/* BIZZARE CASE! */
	/*	kEndProhibited,			kFlushFinalRun,			*/	DUMP_TEXT_AND_BREAK,					/* not much we can do here */
	
/* Word Break Prohibited two byte text */
	/*	kWordBreakProhibited,	kUnprohibited,			*/	SET_BREAKABLE,
	/*	kWordBreakProhibited,	kBeginProhibited,		*/	INC_RUN_LENGTH,
	/*	kWordBreakProhibited,	kEndProhibited,			*/	SET_BREAKABLE,
	/*	kWordBreakProhibited,	kWordBreakProhibited,	*/	INC_RUN_LENGTH,
	/*	kWordBreakProhibited,	kSingleByte,			*/	INC_RUN_LENGTH,
	/*	kWordBreakProhibited,	kBreakableSpace,		*/	SET_BREAKABLE + INSERT_WHITESPACE + SKIP_CHAR,
	/*	kWordBreakProhibited,	kFlushFinalRun,			*/	DUMP_TEXT_AND_BREAK,
	
/* Single byte text */
	/*	kSingleByte,			kUnprohibited,			*/	SET_BREAKABLE,
	/*	kSingleByte,			kBeginProhibited,		*/	INC_RUN_LENGTH,
	/*	kSingleByte,			kEndProhibited,			*/	SET_BREAKABLE,
	/*	kSingleByte,			kWordBreakProhibited,	*/	SET_BREAKABLE,
	/*	kSingleByte,			kSingleByte,			*/	INC_RUN_LENGTH,
	/*	kSingleByte,			kBreakableSpace,		*/	SET_BREAKABLE + INSERT_WHITESPACE + SKIP_CHAR,
	/*	kSingleByte,			kFlushFinalRun,			*/	DUMP_TEXT_AND_BREAK,
	
/* Single byte breakable space */
	/*	kBreakableSpace,		kUnprohibited,			*/	0,
	/*	kBreakableSpace,		kBeginProhibited,		*/	0,
	/*	kBreakableSpace,		kEndProhibited,			*/	0,
	/*	kBreakableSpace,		kWordBreakProhibited,	*/	0,
	/*	kBreakableSpace,		kSingleByte,			*/	0,
	/*	kBreakableSpace,		kBreakableSpace,		*/	SKIP_CHAR,
	/*	kBreakableSpace,		kFlushFinalRun,			*/	0,
	
/* These are never hit */
	/*	kFlushFinalRun,			kUnprohibited,			*/	0,
	/*	kFlushFinalRun,			kBeginProhibited,		*/	0,
	/*	kFlushFinalRun,			kEndProhibited,			*/	0,
	/*	kFlushFinalRun,			kWordBreakProhibited,	*/	0,
	/*	kFlushFinalRun,			kSingleByte,			*/	0,
	/*	kFlushFinalRun,			kBreakableSpace,		*/	0,
	/*	kFlushFinalRun,			kFlushFinalRun,			*/	0,
};

static void
lo_ParseDoubleText ( lo_DocState * state, LO_TextBlock * block, Bool parseAllText, char * text )
{
	char *			tptr;
	char *			wordStart;
	char *			nextWordStart;
	int32			runLength;
	int32			nextRunLength;
	int32			curCharBytes;
	int32			nextCharBytes;
	int16			charset;
	ParseState		curCharType;
	ParseState		nextCharType;
	uint8			parseCommand;
	uint32			textLength;
	Bool			startNewRun;
	Bool			eachCharBreakable;
	Bool			processLastRun;
	
	tptr = text;
	wordStart = text;
	runLength = 0;
	
	textLength = 0;
	
	processLastRun = FALSE;
	
	/* BRAIN DAMAGE: We need to see if there's anything in the line buffer for us */
	
	/* Make sure the text block has enough space to hold this block of text */
	textLength += XP_STRLEN ( text );
	lo_GrowTextBlock ( block, textLength + 1 );

	charset = block->text_attr->charset;
	curCharType = kSingleByte;
	curCharBytes = 1;
	
	eachCharBreakable = FALSE;
	
	/* if we have a trailing space, then set our state to be a space */
	if ( state->trailing_space )
		{
		curCharType = kBreakableSpace;
		runLength = curCharBytes;
		}
	
	startNewRun = FALSE;
		
	while ( ( *tptr != '\0' ) || processLastRun )
		{
		if ( processLastRun )
			{
			/* force the last run to be flushed */
			nextCharType = kFlushFinalRun;
			nextCharBytes = 0;
			}
		else
			{		
			/* do we have an ascii char? */
			if ( ( (unsigned char) *tptr ) <= 0x7F )
				{
				nextCharBytes = 1;
				
				/* is the next char a breakable space? */
				if ( XP_IS_SPACE( *tptr ) )
					{
					nextCharType = kBreakableSpace;
					}
				else
				/* it's a normal char */
					{
					nextCharType = kSingleByte;
					}
				}
			else
				{
				/* multibyte, do that international thing */
				nextCharBytes = INTL_CharLen( charset, (unsigned char *) tptr);
				nextCharType = (ParseState) INTL_KinsokuClass( charset, (unsigned char *) tptr );
				}
			}
		
		/* now get our parse command */
		parseCommand = gParseTable[ curCharType ][ nextCharType ];
		nextRunLength = nextCharBytes;
		nextWordStart = tptr;
		
		/*
		 * Unprohibited multibyte check - we need to catch cases where our byte size changes. We might
		 * want to add a command bit for this check, for now I shall do it this way.
		 */
		
		if ( ( curCharType == kUnprohibited ) && ( nextCharType == kUnprohibited ) )
			{
			if ( nextCharBytes != curCharBytes )
				{
				/* ok, our char size changed. we need to dump this run */
				parseCommand |= SET_BREAKABLE;
				}
			}
			
		/* process the command */
		if ( parseCommand & CARRY_LAST_CHAR )
			{
			/* move the last char of this run into the next run */
			runLength -= curCharBytes;
			nextWordStart -= curCharBytes;
			
			/* and move the carried char of the previous run to the next one */
			nextRunLength = curCharBytes + nextCharBytes;
			
			/* if the old run is empty, we don't want to do anything else  */
			if ( runLength == 0 )
				{
				parseCommand = 0;
				startNewRun = TRUE;
				}
			}
			
		if ( parseCommand & INC_RUN_LENGTH )
			{
			runLength += nextCharBytes;
			}

		if ( parseCommand & SET_BREAKABLE )
			{
			lo_CopyText ( (uint8 *) wordStart, &block->text_buffer[ block->buffer_write_index ], runLength );
			block->buffer_write_index += runLength;
			
			/* set a breakable run */
			lo_SetBreakPosition ( block );
				
			startNewRun = TRUE;
			}

		if ( parseCommand & SET_MULTI_BREAKABLE )
			{
			lo_CopyText ( (uint8 *) wordStart, &block->text_buffer[ block->buffer_write_index ], runLength );
			block->buffer_write_index += runLength;
			
			/* set an unbreakable run */
			lo_SetMultiByteRun ( block, curCharBytes, TRUE, eachCharBreakable );
			startNewRun = TRUE;
			}
		
		if ( parseCommand & DUMP_TEXT_AND_BREAK )
			{
			/* copy the text out but don't set a break (only happens when flushing at the end) */
			lo_CopyText ( (uint8 *) wordStart, &block->text_buffer[ block->buffer_write_index ], runLength );
			block->buffer_write_index += runLength;
			
			/* now break out of the loop - we're done */
			break;
			}
			
		if ( startNewRun )
			{
			wordStart = nextWordStart;
			runLength = nextRunLength;
			startNewRun = FALSE;
			}
		
		if ( parseCommand & SKIP_CHAR )
			{
			wordStart++;
			}
		
		if ( parseCommand & INSERT_WHITESPACE )
			{
			block->text_buffer[ block->buffer_write_index ] = ' ';
			block->buffer_write_index++;
			block->last_buffer_write_index++;
			}
		
		curCharBytes = nextCharBytes;
		
		if ( !( parseCommand & MAINTAIN_CHAR_TYPE ) )
			{
			curCharType = nextCharType;
			}
			
		eachCharBreakable = curCharType == kUnprohibited;
		
		tptr += nextCharBytes;
		
		/* if we got here with processLastRun, then we need to bail */
		if ( processLastRun )
			{
			break;
			}
			
		/*
		 * if we're on the last character, then we may have a partial run left over. if we're parsing all text
		 * then we need to dump it.
		 */
		if ( parseAllText && ( *tptr == 0 ) && ( runLength > 0 ) )
			{
			processLastRun = TRUE;
			}
		}
	
	/* if we've ended and we have a run, then we need to save it in the line buffer */
	if ( ( runLength > 0 ) && ( *wordStart != 0 ) )
		{
		lo_CopyTextToLineBuffer ( state,(uint8 *)  wordStart, runLength );
		}
}

static void
lo_FlushText ( MWContext * context, lo_DocState * state )
{
	LO_TextBlock *	block;
	Bool			multiByte;
	char *			text_buf;
	
	block = state->cur_text_block;
	
	if ( block != NULL )
		{
		lo_GetTextParseAtributes ( state, &multiByte );
		
		/* add any text to the text block that may be sitting in the line buffer */
		/* BRAIN DAMAGE: These should both be handled the same way */
		if ( multiByte )
			{
			if ( state->line_buf_len > 0 )
				{
				PA_LOCK(text_buf, char *, state->line_buf);
				lo_ParseDoubleText ( state, block, TRUE, text_buf );
				PA_UNLOCK(state->line_buf);
				}
			}
		else
			{
			lo_AppendTextToBlock ( context, state, block, "" );
			}
			
		lo_LayoutTextBlock ( context, state, TRUE );
		}
}

static void
lo_SetupBreakState ( LO_TextBlock * block )
{
	Bool			canBreak;
	uint32			wordLength;
	uint32			lineLength;
	uint8 *			runEnd;
	uint32			searchReadIndex;
	BreakState		breakState;
	
	searchReadIndex = block->buffer_read_index;
	
	block->buffer_read_index = 0;
	block->break_read_index = 0;
	block->last_line_break = 0;

	/*
	 * We need to update our state to be at the current text position (specified by buffer_read_index)
	 */
	
	lineLength = 0;

	/* run through the break table until we get to the correct read index */
	while ( block->buffer_read_index < searchReadIndex )
		{
		SAVE_BREAK_STATE ( block, &breakState, lineLength );			
				
		runEnd = lo_GetNextTextPosition ( block, &wordLength, &lineLength, &canBreak );
		if ( runEnd == NULL )
			{
			/* this should not happen, but just in case, let's do something kinda reasonable */
			lo_RestoreBreakState ( block, &breakState, NULL );
			break;
			}
		}

	/*
	 * If we're not at the beginning of the text buffer, then we need to increment buffer_read_index so
	 * that we skip the breakable space we're currently at.
	 */
	if ( ( block->buffer_read_index > 0 ) && XP_IS_SPACE ( block->text_buffer[ block->buffer_read_index ] ) )
		{
		block->buffer_read_index++;
		}
		
	block->last_line_break = block->buffer_read_index;
}

void lo_LayoutTextBlock ( MWContext * context, lo_DocState * state, Bool flushLastLine )
{
	LO_TextBlock *	block;
	Bool			allTextFits;
	Bool			canBreakAtStart;
	LO_TextStruct *	text_data;
	LO_TextStruct	msTextData;
	uint32			width;
	uint32			lineLength;
	uint8 *			text;
	int32			baseline_inc;
	int32			line_inc;
	int32			minWidth;
	int32 *			minWidthPtr;
	BreakState		breakState;
	uint16 *		charLocs;
	Bool			freeMeasureBuffer;
	Bool			justify;
	
	block = state->cur_text_block;
	if ( block == NULL )
		{
		return;
		}
	
	justify = ( state->align_stack != NULL ) && ( state->align_stack->alignment == LO_ALIGN_JUSTIFY );
		
	/* bail if we're at the end of this block */
	if ( block->buffer_read_index == block->buffer_write_index )
		{
		/* if there's also no text in the line buffer, clear this block */
		if ( state->line_buf_len == 0 )
			{
			state->cur_ele_type = LO_NONE;
			state->cur_text_block = NULL;
			state->trailing_space = block->last_char_is_whitespace;
			}
		return;
		}
	
	lineLength = 0;
	
	charLocs = NULL;
	freeMeasureBuffer = FALSE;
	
	/* find the width of an average character */
	if ( block->totalWidth == 0 )
		{
		memset (&msTextData, 0, sizeof (LO_TextStruct));
		msTextData.text = (PA_Block) "aeiou";
		msTextData.text_attr = block->text_attr;
		msTextData.text_len = 5;
		
		FE_GetTextInfo ( context, &msTextData, &state->text_info );
		block->totalWidth = state->text_info.max_width;
		block->totalChars = msTextData.text_len;
		}

#ifdef XP_MAC
	/* do a quick test to see if we could overflow a UInt16 */
	if ( ( block->buffer_write_index * block->totalWidth / block->totalChars ) < 65535 )
		{
		/* measure the text using the fast measure text */
		if ( ( block->buffer_write_index + 1 ) < kStaticMeasureTextBufferSize )
			{
			charLocs = gMeasureTextBuffer;
			}
		else
			{
			charLocs = XP_ALLOC( ( block->buffer_write_index + 1 ) * sizeof(uint16) );
			freeMeasureBuffer = TRUE;
			}
			
		if ( charLocs != NULL )
			{
			memset (&msTextData, 0, sizeof (LO_TextStruct));
			msTextData.text = (PA_Block) block->text_buffer;
			msTextData.text_attr = block->text_attr;
			msTextData.text_len = block->buffer_write_index;
			FE_MeasureText ( context, &msTextData, (int16 *) charLocs );
			
			/* BRAIN DAMAGE: We need to figure out for sure if the width has ever exceeded a uint16! */
			/* the actual interface for MeasureText says it takes an array of signed ints, however */
			/* the data stuffed in there is unsigned (we quickly overflow a int16 with an 8Kb buffer) */
			}
		}
#endif
	
	/*
	 * Given the current layout state, run through this text block and convert all that we can into text elements.
	 * If flushLastLine is set, we want to flush all the text, rather than keeping the last bit in case more text
	 * comes.
	 */
	
	allTextFits = FALSE;
	
	/* if we're laying out a table, then we need to calculate min widths */
	minWidthPtr = state->need_min_width ? &minWidth : NULL;
	
	while ( !allTextFits )
		{
		canBreakAtStart = FALSE;

		/* Save the current break state in case we need to delay on the last line */
		SAVE_BREAK_STATE ( block, &breakState, lineLength );
				
		/*
		 * We need to handle the case where we're at the beginning of the line and the
		 * first character is a breakable space.
		 */
		if ( state->at_begin_line )
			{
			canBreakAtStart = lo_SkipInitialSpace ( block );
#ifdef LOG
			PR_LogPrint ( "canBreakAtStart: %d\n", canBreakAtStart );
			PR_LogFlush();
#endif
			}
		
		/* we're looking for a new break position */
		state->break_pos = -1;
		state->break_width = -1;

		text = lo_GetLineStart ( block );
				
		lineLength = lo_FindLineBreak ( context, state, block, text, charLocs, &width, minWidthPtr, &allTextFits );

		/* update the state's min_width if we need to - this will be constant even if we don't flush this line */
		if ( minWidthPtr != NULL )
			{
			if ( minWidth > state->min_width )
				{
				state->min_width = minWidth;
				}
			}
		
		/*
		 * if this line is too long, we either need to break at the beginning of the run (if we can)
		 * or break at an old element. If we can't do either of those then we just have to make the line
		 * too big
		 */
		
		if ( ( width > ( state->right_margin - state->x ) ) && ( state->x > state->left_margin ) )
			{
			/* could we have broken at the start of this line? */
			if ( canBreakAtStart )
				{
#ifdef LOG
				PR_LogPrint ( "Too long - Breaking at the start of the line\n" );
				PR_LogFlush();
#endif

				/* break the line here */
				lo_SoftLineBreak( context, state, TRUE );
				
				/*
				 * BUG BUG: We're restoring the break state to the beginning of the buffer - ie
				 * to before the space we skipped above. We need to fix the space skipping mechanism
				 * to remove this case (we can go into an infinite loop here if there's not enough space
				 * for the first word).
				 *
				 * Should be able to have a new flag "canSkipSpace" but then actually don't skip it. Then
				 * if the line does fit and it's at the beginning, we can skip the space. lo_FindLineBreak
				 * should probably be the one to do this work so that the width we get back is correct.
				 */
				lo_RestoreBreakState ( block, &breakState, NULL );
				
				/*
				 * if all the text fits (ie there was only an unbreakable run left in this block), then
				 * we need to stick with this break position. Otherwise we can go find a new one
				 */
				if ( !allTextFits )
					{
					continue;
					}
				}
			else
			/* do we have an old break position we can use? */
			if ( state->old_break_pos != -1 )
				{
#ifdef LOG
				PR_LogPrint ( "Too long - Breaking at the old_break_pos: %ld, width %ld\n"
					state->old_break_pos, state->old_break_width );
				PR_LogFlush();
#endif
				lo_BreakOldElement ( context, state );
				lo_RestoreBreakState ( block, &breakState, NULL );
				
				/*
				 * if all the text fits (ie there was only an unbreakable run left in this block), then
				 * we need to stick with this break position. Otherwise we can go find a new one
				 */
				if ( !allTextFits )
					{
					continue;
					}
				}
			
			/* we're screwed, we just have to make this line too long */
			}
						
		/*
		 * We may not necessarily want to flush the whole buffer out to layout elements (the case where were
		 * processing part of a text chunk based on what netlib has streamed to us).
		 *
		 * We know we do want to flush this next line out if we still have more text in this buffer to process
		 * or layout really does want us to flush this whole buffer (because some other element is after us).
		 */
		if ( !allTextFits || flushLastLine )
			{
			state->width = width;

			if ( lineLength > 0 )
				{
				text_data = (LO_TextStruct *)lo_NewElement ( context, state, LO_TEXT, NULL, 0 );
				if (text_data == NULL)
					{
#ifdef DEBUG
					assert (state->top_state->out_of_memory);
#endif
					break;
					}

				text_data->type = LO_TEXT;
				text_data->ele_id = NEXT_ELEMENT;
				text_data->x = state->x;
				text_data->x_offset = 0;
				text_data->y = state->y;
				text_data->y_offset = 0;
				text_data->width = width;
				text_data->height = 0;
				text_data->next = NULL;
				text_data->prev = NULL;

				text_data->text = (PA_Block) text;
				text_data->text_len = lineLength;

				text_data->anchor_href = block->anchor_href;
				text_data->text_attr = block->text_attr;
				text_data->ele_attrmask = block->ele_attrmask;
				
				/* BRAIN DAMAGE: Set LO_ELE_INVISIBLE to mark the element as not having a valid text ptr */
				XP_ASSERT ( !(text_data->ele_attrmask & LO_ELE_INVISIBLE ) );
				text_data->ele_attrmask |= LO_ELE_INVISIBLE;
				
				text_data->sel_start = -1;
				text_data->sel_end = -1;

				text_data->doc_width = state->right_margin - state->x;
				text_data->doc_width = 0;
				text_data->block_offset = block->buffer_read_index;
				XP_ASSERT(block->buffer_read_index <= 65535);
					
				/*
				 * Some fonts (particulatly italic ones with curly tails
				 * on letters like 'f') have a left bearing that extends
				 * back into the previous character.  Since in this case the
				 * previous character is probably not in the same font, we
				 * move forward to avoid overlap.
				 *
				 * Those same funny fonts can extend past the last character,
				 * and we also have to catch that, and advance the following text
				 * to eliminate cutoff.
				 */
				if ( state->text_info.lbearing < 0 )
					{
					text_data->x_offset = state->text_info.lbearing * -1;
					}
					
				baseline_inc = 0;
				line_inc = 0;
				
				/*
				 * The baseline of the text element just added to the line may be
				 * less than or greater than the baseline of the rest of the line
				 * due to font changes.  If the baseline is less, this is easy,
				 * we just increase y_offest to move the text down so the baselines
				 * line up.  For greater baselines, we can't move the text up to
				 * line up the baselines because we will overlay the previous line,
				 * so we have to move all the previous elements in this line down.
				 *
				 * If the baseline is zero, we are the first element on the line,
				 * and we get to set the baseline.
				 */
				if ( state->baseline == 0 )
					{
					state->baseline = state->text_info.ascent;
					if (state->line_height < 
						(state->baseline + state->text_info.descent))
						{
						state->line_height = state->baseline +
							state->text_info.descent;
						}
					}
				else if ( state->text_info.ascent < state->baseline )
					{
					text_data->y_offset = state->baseline - state->text_info.ascent;
					if ( ( text_data->y_offset + state->text_info.ascent + state->text_info.descent ) > state->line_height )
						{
						line_inc = text_data->y_offset + state->text_info.ascent + state->text_info.descent -
									state->line_height;
						}
					}
				else
					{
					baseline_inc = state->text_info.ascent - state->baseline;
					if ( ( text_data->y_offset + state->text_info.ascent + state->text_info.descent - baseline_inc ) >
							state->line_height)
						{
						line_inc = text_data->y_offset + state->text_info.ascent + state->text_info.descent -
									state->line_height - baseline_inc;
						}
					}
				
				/*
				 * Append this element to layout's linelist and our own list of text elements belonging to this block
				 */
				lo_AppendToLineList ( context, state, (LO_Element *) text_data, baseline_inc );
				if ( block->startTextElement == NULL )
					{
					block->startTextElement = text_data;
					block->endTextElement = text_data;
					}
				else
					{
					block->endTextElement = text_data;
					}
				
				/* we know we're not at the beginning of the line anymore */
				state->at_begin_line = FALSE;
				
				state->baseline += (intn) baseline_inc;
				state->line_height += (intn) (baseline_inc + line_inc);
				text_data->height = state->text_info.ascent + state->text_info.descent;

				/*
				 * If the element we just flushed had a breakable word
				 * position in it, save that position in case we have
				 * to go back and break this element before we finish
				 * the line.
				 */
				if ( state->break_pos != -1 )
					{
					state->old_break = text_data;
					state->old_break_block = block;
					state->old_break_pos = state->break_pos;
					state->old_break_width = state->break_width;
					}

				state->linefeed_state = 0;
				state->x += state->width;
				state->width = 0;
				}
				
			/*
			 * If we're still processing text in this buffer, put a linebreak out there
			 */
			if ( !allTextFits && !justify )
				{
				lo_SoftLineBreak(context, state, TRUE);
				}
			
			/* tell the break engine that we broke the line here */
			lo_SetLineBreak ( block, !justify );


#ifdef EDITOR
			/* tell the editor where we are */
			state->edit_current_offset = block->last_line_break;
#endif
				
			if ( !( allTextFits && !flushLastLine ) )
				{
				/*
				 * Skip the break character if it's whitespace. We don't need to worry about non-breaking spaces
				 * here as if the space was non-breaking, we would not have broken the line here
				 */

				if ( XP_IS_SPACE ( *text ) && !allTextFits )
					{
					/* BRAIN DAMAGE: We should be able to do this at the start of the line */
/*					lo_SkipCharacter ( block ); */
					}
				}
			
			}
		}
	
	if ( flushLastLine )
		{
		state->cur_ele_type = LO_NONE;
		state->cur_text_block = NULL;
		state->trailing_space = block->last_char_is_whitespace;
		}
	else
	if ( allTextFits )
		{
		/* we're still inside a group of text elements */
		state->cur_ele_type = LO_TEXT;
		state->trailing_space = block->last_char_is_whitespace;
		
		/* We're not going to flush the last line, so restore our break state to the start of the line */
		lo_RestoreBreakState ( block, &breakState, NULL );
		}
	
	if ( freeMeasureBuffer )
		{
		XP_FREE( charLocs );
		}
}

int32 lo_ComputeTextMinWidth ( lo_DocState * state, int32 wordWidth, Bool canBreak );
int32 lo_ComputeTextMinWidth ( lo_DocState * state, int32 wordWidth, Bool canBreak )
{
	int32 new_break_holder;
	int32 min_width;
	int32 indent;

	new_break_holder = state->x + wordWidth;
	min_width = new_break_holder - state->break_holder;
	indent = state->list_stack->old_left_margin - state->win_left;
	min_width += indent;

	/* If we are not within <NOBR> content, allow break_holder
	 * to be set to the new position where a line break can occur.
	 * This fixes BUG #70782
	 */
	if ( ( state->breakable != FALSE ) && canBreak) {
		state->break_holder = new_break_holder;
	}
	
	return min_width;
}

static uint32
lo_FindLineBreak ( MWContext * context, lo_DocState * state, LO_TextBlock * block, uint8 * text,
	uint16 * widthTable, uint32 * width, int32 * minWidth, Bool * allTextFits )
{
	LO_TextStruct	text_data;
	uint32			breakCount;
	Bool			skipEndSpace;
	Bool			haveTooShort;
	Bool			canBreak;
	BreakState		tooShortBreak;
	Bool			haveTooLong;
	uint32			wordLength;
	uint32			breakChar;
	uint32			lineLength;
	uint32			prevLineLength;
	uint8 *			wordStart;
	LO_TextInfo		text_info;
	uint32			runLength;
	int32			docWidth;
	BreakState		breakState;
	uint8 *			runEnd;
	int32			oldBreakPos;
	int32			oldBreakWidth;
	int32			lineWidth;
	Bool			justify;
#ifdef BREAK_GUESS_TRACK
	uint32			numForwardMoves;
	uint32			numBackwardMoves;
	
	numForwardMoves = 0;
	numBackwardMoves = 0;
#endif
	
	*allTextFits = FALSE;
	
	memset (&text_data, 0, sizeof (LO_TextStruct));
	text_data.text = (PA_Block) text;
	text_data.text_attr = block->text_attr;
	
	if ( minWidth != NULL )
		{
		*minWidth = 0;
		}

	justify = ( state->align_stack != NULL ) && ( state->align_stack->alignment == LO_ALIGN_JUSTIFY );
	
	/* guess where we want to break this line */
	docWidth = state->right_margin - state->x;
	if ( docWidth < 0 )
		{
		/* we should never get here - the line before us needs to have been broken */
		docWidth = 0;
		}
	
	lineLength = block->buffer_write_index - block->buffer_read_index;
	if ( state->breakable )
		{
		breakChar = docWidth * block->totalChars / block->totalWidth;
		if ( breakChar > lineLength )
			{
			breakChar = lineLength;
			}
		}
	else
		{
		breakChar = lineLength;
		}
	
	/*
	 * We first need to walk through the word runs until we get to the first one before our
	 * break character.
	 *
	 * OPTIMIZATION: Make lo_GetNextTextPosition take a breakChar and have it walk forward to that
	 * position in an inner loop. This will save us a ton of calls (we currently spend about 5% if our
	 * time in lo_GetNextTextPosition - not huge but significant).
	 */

	lineLength = 0;
	
	breakCount = 0;
	skipEndSpace = FALSE;
	
	wordStart = text;
	
	haveTooShort = FALSE;
	haveTooLong = FALSE;

	oldBreakPos = -1;
	oldBreakWidth = -1;
	
	lineWidth = 0;
#ifdef LOG
	if ( !gHaveLog )
		{
		PR_SetLogFile ( "TextLog" );
		gHaveLog = true;
		}

	PR_LogPrint ( "Finding initial break position\n" );
#endif

	/* get the next break position */
	while ( TRUE )
		{
		prevLineLength = lineLength;
		
#ifdef LOG
		PR_LogPrint ( "Get next break position\n" );
		PR_LogFlush();
#endif
		/* Save the current break position in case it ends up being the one we need */
		if ( breakCount > 0 && canBreak )
			{
			oldBreakPos = lineLength;
			}
		
		SAVE_BREAK_STATE ( block, &breakState, lineLength );			
		runEnd = lo_GetNextTextPosition ( block, &wordLength, &lineLength, &canBreak );
		if ( runEnd == NULL )
			{
#ifdef LOG
			PR_LogPrint ( "End of break table\n" );
			PR_LogFlush();
#endif
			
			/* we hit the end of the break table */
			runEnd = lo_RestoreBreakState ( block, &breakState, &lineLength );
			break;
			}

		/* do we need to calculate min_width's? */
		if ( minWidth != NULL )
			{
			int32 min_width;
			
			if ( widthTable != NULL )
				{
				uint32	startWordWidth;
				uint32	endWordWidth;
				
				startWordWidth = widthTable[ block->last_line_break + prevLineLength ];
				endWordWidth = widthTable[ block->last_line_break + lineLength ];
				
				runLength = endWordWidth - startWordWidth;
				}
			else
				{
				text_data.text = (PA_Block) wordStart;
				text_data.text_len = lineLength - prevLineLength;
				FE_GetTextInfo ( context, &text_data, &text_info );
				
				runLength = text_info.max_width;
				}
			
			/* add the width of this word into our line width */
			lineWidth += runLength;
			
			/* compute the real min width based on the last break position */
			min_width = lo_ComputeTextMinWidth ( state, lineWidth, canBreak );
			if ( min_width > *minWidth )
				{
				*minWidth = min_width;
				}
			
			wordStart = runEnd;
			}

#ifdef LOG
		PR_LogPrint ( "wordlen: %lu, lineLength: %lu, canBreak: %d, runEnd: %s\n", wordLength, lineLength, canBreak, runEnd );
		PR_LogFlush();
#endif
		
		/* Are we where we want to be yet? */
		if ( lineLength >= breakChar )
			{
#ifdef LOG
			PR_LogPrint ( "Moved past, back up\n" );
			PR_LogFlush();
#endif
			
			/* if we moved past it then back up if we can */
			if ( ( lineLength > breakChar ) && ( breakCount > 0 ) )
				{
				runEnd = lo_RestoreBreakState ( block, &breakState, &lineLength );			
				--breakCount;
				}
				
			break;
			}
		
		/* if we're justifying text, then we just dump the next break position */
		if ( justify )
			{
			break;
			}
			
		/* we can now back up to something */
		++breakCount;
		}

	/*
	 * So now we're looking at the nearest break position to where we guessed we'd want to be.
	 * Now we loop measuring this line of text until we find the best break position
	 */
	
#ifdef LOG
	PR_LogPrint ( "Finding actual break position\n" );
	PR_LogFlush();
#endif
	
	while ( TRUE )
		{
		if ( widthTable != NULL )
			{
			uint32	startLineWidth;
			uint32	endLineWidth;
			
			startLineWidth = widthTable[ block->last_line_break ];
			endLineWidth = widthTable[ block->last_line_break + lineLength ];
			
			runLength = endLineWidth - startLineWidth;
			}
		else
			{
			text_data.text = (PA_Block) text;
			text_data.text_len = lineLength;
			FE_GetTextInfo ( context, &text_data, &text_info );
				
			runLength = text_info.max_width;
			}

#ifdef LOG
		PR_LogPrint ( "lineLength: %lu, width: %lu, docWidth: %lu, text: %s\n", lineLength, runLength, docWidth, text );
		PR_LogFlush();
#endif
		/* if we're justified text, then we just dump the word we have now */
		if ( justify )
			{
			/* save this break position */
			if ( canBreak )
				{
				oldBreakPos = lineLength;
				oldBreakWidth = runLength;
				
				/* if the next char along is a space, then we need to include it */
				if ( ( runEnd != NULL ) && XP_IS_SPACE ( *runEnd )  )
					{
					++lineLength;
					}
				}
				
			break;
			}
		else
		/* are we non-breakable text? */
		if ( !state->breakable )
			{
			/*
			 * We always want to move to the end of the text block. We should already be
			 * there from the loop above.
			 */
#ifdef LOG
			PR_LogPrint ( "Non-breakable, always get next break point\n" );
			PR_LogFlush();
#endif
			
			/* go forward one break position and measure again (including min width) */
			SAVE_BREAK_STATE ( block, &tooShortBreak, lineLength );
			haveTooShort = TRUE;
			
#ifdef BREAK_GUESS_TRACK
			++numForwardMoves;
#endif			
			wordStart = runEnd;
			runEnd = lo_GetNextTextPosition ( block, &wordLength, &lineLength, &canBreak );
			if ( runEnd == NULL )
				{				
				/* we've already at the end of the line */
				runEnd = lo_RestoreBreakState ( block, &tooShortBreak, &lineLength );
#ifdef LOG
				PR_LogPrint ( "Non-breakable text, hit end of block: %lu, runEnd: %s\n", lineLength, runEnd );
				PR_LogFlush();
#endif
				/* update min_width */
				if ( minWidth != NULL )
					{
					int32 min_width;
										
					/* compute the real min width based on the last break position - we cannot break here */
					min_width = lo_ComputeTextMinWidth ( state, runLength, FALSE );
					if ( min_width > *minWidth )
						{
						*minWidth = min_width;
						}
					}
				break;
				}
			}
		else
		/* have we gone too far? */
		if ( runLength > docWidth )
			{
#ifdef LOG
			PR_LogPrint ( "Too long\n" );
			PR_LogFlush();
#endif
			
			/* if we found a break position before this one that was too short, choose the too short one */
			if ( haveTooShort )
				{
#ifdef LOG
				PR_LogPrint ( "Using too short\n" );
				PR_LogFlush();
#endif
				runEnd = lo_RestoreBreakState ( block, &tooShortBreak, &lineLength );
				break;
				}
			
			/* if we have something to back up to, then do so. Otherwise we have to break here */
			if ( breakCount > 0 )
				{
#ifdef LOG
				PR_LogPrint ( "Backing up to previous break position\n" );
				PR_LogFlush();
#endif
#ifdef BREAK_GUESS_TRACK
				++numBackwardMoves;
#endif			

				/* mark that we've been to far and back up one */
				haveTooLong = TRUE;
				runEnd = lo_GetPrevTextPosition ( block, &wordLength, &lineLength, &canBreak );
				if ( runEnd == NULL )
					{
					/* we need to break at a previous break position on this line... */
					break;
					}
					
				wordStart = runEnd;
				--breakCount;
				continue;
				}
			else
				{
#ifdef LOG
				PR_LogPrint ( "Nothing to back up to, bailing\n" );
				PR_LogFlush();
#endif
				break;
				}
			}
		else
		/* have we not gone far enough? */
		if ( runLength < docWidth )
			{
#ifdef LOG
			PR_LogPrint ( "Too short\n" );
			PR_LogFlush();
#endif
			/* if we have a too long break position, then we know we're straddling the break point, choose */
			/* this one */
			if ( haveTooLong )
				{
#ifdef LOG
				PR_LogPrint ( "Using this break, next is too long\n" );
				PR_LogFlush();
#endif
				break;
				}

			/* save this break position */
			if ( canBreak )
				{
				oldBreakPos = lineLength;
				oldBreakWidth = runLength;
				}
			
			/* go forward one break position and measure again (including min width) */
			SAVE_BREAK_STATE ( block, &tooShortBreak, lineLength );
			haveTooShort = TRUE;
			
#ifdef BREAK_GUESS_TRACK
			++numForwardMoves;
#endif			
			
			wordStart = runEnd;
			runEnd = lo_GetNextTextPosition ( block, &wordLength, &lineLength, &canBreak );
			if ( runEnd == NULL )
				{				
				/* we've already at the end of the line */
				runEnd = lo_RestoreBreakState ( block, &tooShortBreak, &lineLength );
#ifdef LOG
				PR_LogPrint ( "No next break position, use this one. length: %lu, runEnd: %s\n", lineLength, runEnd );
				PR_LogFlush();
#endif
				break;
				}
			
			/*
			 * Update min width.
			 */
			if ( minWidth != NULL )
				{
				int32 min_width;

				if ( widthTable != NULL )
					{
					uint32	startLineWidth;
					uint32	endLineWidth;
					
					startLineWidth = widthTable[ block->last_line_break ];
					endLineWidth = widthTable[ block->last_line_break + lineLength ];
					
					runLength = endLineWidth - startLineWidth;
					}
				else
					{
					text_data.text = (PA_Block) wordStart;
					text_data.text_len = wordLength;
					FE_GetTextInfo ( context, &text_data, &text_info );
					
					/* add the length of this word into the length of the line */
					runLength += text_info.max_width;
					}
									
				/* compute the real min width based on the last break position */
				min_width = lo_ComputeTextMinWidth ( state, runLength, canBreak );
				if ( min_width > *minWidth )
					{
					*minWidth = min_width;
					}
				}
				
			++breakCount;
			continue;
			}
		else
			{
			/* we're spot on! */
			break;
			}
		}
	
	/*
	 * We may be in a nasty case where our current break position is before our
	 * last saved one in oldBreakPos. This can happen when we move backwards
	 * from our initial break guess. To correct this, we need to back up from our
	 * current break point, get the new position and then move forward again.
	 */
	if ( ( oldBreakPos != -1 ) && ( oldBreakPos >= lineLength ) )
		{
		uint32	dummyWordLength;
		uint32	prevBreakPos;
		Bool	dummyCanBreak;
		uint8 *	prevRunEnd;
			
#ifdef BREAK_GUESS_TRACK
			++numBackwardMoves;
#endif			
		prevBreakPos = lineLength;
		
		SAVE_BREAK_STATE ( block, &breakState, prevBreakPos );
		prevRunEnd = lo_GetPrevTextPosition ( block, &dummyWordLength, &prevBreakPos, &dummyCanBreak );
		if ( prevRunEnd != NULL )
			{
			/* we found a valid previous break, so use it */
			oldBreakPos = prevBreakPos;
			oldBreakWidth = -1;
			}
		else
			{
			/* nothing to back up to, so don't record any old break */
			oldBreakPos = -1;
			oldBreakWidth = -1;
			}
		
		/* restore the current break state */
		lo_RestoreBreakState ( block, &breakState, &prevBreakPos );
		}
			
	text_data.text = (PA_Block) text;

	/* If we don't have a width for the oldBreakPos, measure one now */
	if ( ( oldBreakPos != -1 ) && ( oldBreakWidth == -1 ) )
		{
		if ( widthTable != NULL )
			{
			uint32	startLineWidth;
			uint32	endLineWidth;
			
			startLineWidth = widthTable[ block->last_line_break ];
			endLineWidth = widthTable[ block->last_line_break + oldBreakPos ];
			
			oldBreakWidth = endLineWidth - startLineWidth;
			}
		else
			{
			text_data.text_len = oldBreakPos;
			FE_GetTextInfo ( context, &text_data, &text_info );
			oldBreakWidth = text_info.max_width;
			}
		}
	
	text_data.text_len = lineLength;
	
	/* if we're breaking at a space at the end of this line, don't measure it */
	if ( skipEndSpace )
		{
		--text_data.text_len;
		}
	
	/* BRAIN DAMAGE: We don't need this - already got all the info */
	if ( widthTable != NULL )
		{
		uint32	startLineWidth;
		uint32	endLineWidth;
		
		/* this is really lame */
		text_data.text = (PA_Block) text;
		text_data.text_len = 1;
		FE_GetTextInfo ( context, &text_data, &text_info );
		
		startLineWidth = widthTable[ block->last_line_break ];
		endLineWidth = widthTable[ block->last_line_break + lineLength ];
		
		text_info.max_width = endLineWidth - startLineWidth;
		}
	else
		{
		text_data.text = (PA_Block) text;
		text_data.text_len = lineLength;
		FE_GetTextInfo ( context, &text_data, &text_info );
		}
	
	/* update our char width average */
	block->totalWidth += text_info.max_width;
	block->totalChars += lineLength;
	
	*width = lo_correct_text_element_width( &text_info );
	
	/* BRAIN DAMAGE: Pass this into the FE call */
	state->text_info = text_info;
	
	/* check to see if we're at the end of the buffer */
	if ( block->buffer_read_index == block->buffer_write_index )
		{
		*allTextFits = TRUE;
		}
	
	/* save the last break position */
	if ( oldBreakPos != -1 )
		{
		state->break_pos = oldBreakPos;
		state->break_width = oldBreakWidth;
		}
	
#ifdef LOG
	PR_LogPrint ( "Final lineLength: %lu, allTextFits: %d, text: %s\n", text_data.text_len, *allTextFits, text );
	PR_LogFlush();
#endif

#ifdef BREAK_GUESS_TRACK
	XP_TRACE(("Num forward, backward break moves after initial guess: %ld, %ld", numForwardMoves, numBackwardMoves ));
#endif			

	return lineLength;
}


static uint8 *
lo_GetNextTextPosition ( LO_TextBlock * block, uint32 * outWordLength, uint32 * outLineLength, Bool * canBreak )
{
	uint32		breakCommand;
	uint32		breakLong;
	uint32		breakIndex;
	uint32		lineLength;
	uint32		nibbleCount;
	uint32		dataNibbles;
	int32		wordLength;
	uint32 *	breakTable;
	uint8 *		endTextRun;
	
	/*
	 * Sanity check for already being at the end of the buffer
	 */
	
	if ( block->buffer_read_index == block->buffer_write_index )
		{
		*outWordLength = 0;
		*canBreak = FALSE;
		return NULL;
		}
	
	/* are we in a run of breakable multibyte characters? */
	if ( block->multibyte_length > 0 )
		{
		uint16	charSize;
		
		/* BRAIN DAMAGE */
		/* turn this next line on when the uint16 multibyte_char_size field is added to LO_TextBlock */
#if 0
		charSize = block->multibyte_char_size;
#else
		charSize = 2;
#endif
		block->multibyte_index += charSize;
		
		/* are we at the end of this run? */
		if ( block->multibyte_index == block->multibyte_length )
			{
			block->multibyte_length = 0;
			block->multibyte_index = 0;
			}
		
		/* bump by one character */
		*outWordLength = charSize;
		(*outLineLength) += charSize;
		*canBreak = TRUE;

		block->buffer_read_index += 2;
		endTextRun = &block->text_buffer[ block->buffer_read_index ];
	
		return endTextRun;
		}
		
	/* assume we will be able to break */
	*canBreak = TRUE;
	
	lineLength = block->buffer_read_index;
	breakIndex = block->break_read_index;
	
	/* are we at the end of the break table? */
	if ( breakIndex < block->break_write_index )
		{
		/* nope, so grab the next break position */
		breakTable = &block->break_table[ breakIndex >> 3 ];
		
		/* cache this in the TextBlock */
		breakLong = ( *breakTable++ ) << ( ( breakIndex & 0x7 ) << 2 );
		wordLength = 0;
		
		/* get the next break command */
		breakCommand = breakLong >> 28;
		breakLong <<= 4;
		if ( ( ++breakIndex & 0x7 ) == 0 )
			{
			breakLong = *breakTable++;
			}
		
		if ( breakCommand <= MAX_NATURAL_LENGTH )
			{
			/* a nibble of length data, we already have all the info we need */
			wordLength = breakCommand;
			dataNibbles = 0;
			}
		else
		if ( breakCommand == LINE_FEED )
			{
			/* we should only get this when parsing preformatted text */
			wordLength = BREAK_LINEFEED;
			dataNibbles = 0;
			}
		else
		if ( breakCommand == BYTE_LENGTH )
			{
			dataNibbles = 2;
			}
		else
		if ( breakCommand == WORD_LENGTH )
			{
			dataNibbles = 4;
			}
		else
		if ( breakCommand == MULTI_BYTE )
			{
			dataNibbles = 4;
			}
		else
			{
			/* a 24 bits of data */
			dataNibbles = 6;
			}
		
		if ( dataNibbles > 0 )
			{
			/* read in the actual count and the tail command header */
			for ( nibbleCount = dataNibbles; nibbleCount > 0; --nibbleCount )
				{
				wordLength <<= 4;
				wordLength |= breakLong >> 28;
				
				breakLong <<= 4;
				if ( ( ++breakIndex & 0x7 ) == 0 )
					{
					breakLong = *breakTable++;
					}
				}
			
			/* now skip the tail end of the command */
			++breakIndex;
			}

		/* if multi byte, then extract the real data */
		if ( breakCommand == MULTI_BYTE )
			{
			int32	runLength;
			
			*canBreak = TRUE;

			runLength = wordLength & MULTI_LENGTH_MASK;
							
			block->multibyte_length = runLength;
			block->multibyte_index = 2;
				
			/* make sure we're not already at the end of the run */
			if ( block->multibyte_index == block->multibyte_length )
				{
				block->multibyte_index = 0;
				block->multibyte_length = 0;
				}
				
			/* extract the real word length from the command */
			wordLength = ( wordLength & MULTI_CHAR_SIZE_MASK ) >> MULTI_CHAR_SIZE_SHIFT;
				
			/* MAJOR BRAIN DAMAGE: WE NEED TO STORE THIS IN THE TEXT BLOCK AS IT WILL NOT */
			/* ALWAYS BE TWO BYTE!!!! */
			XP_ASSERT( wordLength == 2 );
			}

		lineLength += wordLength;

		/*
		 * if we actually have a word here and are not the first word on the line, then 
		 * add one to the length to account for the interword space. We know we're not the
		 * first word on the line if we're not at the linebreak or if we're at the start of the
		 * buffer but have already skipped a break position (this happens when the first
		 * character of the buffer is a breaking space).
		 */
		if ( ( wordLength > 0 ) && ( ( block->last_line_break != block->buffer_read_index ) ||
				( ( block->buffer_read_index == 0 ) && ( block->break_read_index > 0 ) ) ) )
			{
			/* only true if there's a space here */
			if ( XP_IS_SPACE ( block->text_buffer[ block->buffer_read_index ] ) )
				{
				lineLength++;
				(*outLineLength)++;
				}
			}
		}
	else
		{
		/*
		 * We're at the end of the break table. We may have some text after this last break.
		 * Either way, we cannot break here
		 */
		
		*canBreak = FALSE;
		
		if ( lineLength < block->buffer_write_index )
			{
			lineLength = block->buffer_write_index;
			wordLength = lineLength - block->buffer_read_index;
			}
		}
		
	block->break_read_index = breakIndex;
	block->buffer_read_index = lineLength;

	endTextRun = &block->text_buffer[ lineLength ];
	
	*outLineLength += wordLength;
	*outWordLength = wordLength;
	
	return endTextRun;
}


static Bool
lo_ExtractPrevBreakCommand ( LO_TextBlock * block, Bool * multiByte, uint32 * command )
{
	Bool		hasPrev;
	uint32		breakCommand;
	uint32		commandData;
	uint32		breakLong;
	uint32		breakIndex;
	uint32 *	breakTable;
	uint32		nibbleCount;
	uint32		dataNibbles;
	Bool		readPrevCommand;
	
	commandData = 0;
	*multiByte = FALSE;
	
	breakIndex = block->break_read_index;

	hasPrev = block->break_read_index > 0;
	if ( hasPrev )
		{
		readPrevCommand = TRUE;
		
		/* are we at the absolute end of the buffer? */
		if ( block->buffer_read_index == block->buffer_write_index )
			{
			/* Yup, so back up to the last break offset. */
			commandData = block->buffer_read_index - block->last_break_offset;
			
			/* was there really a true ending break command? */
			if ( commandData > 0 )
				{
				readPrevCommand = FALSE;

				/* this length was before the breaking space, add it back in */
				--commandData;
				}
			}
		
		/* extract the previous command from the table if we need to */
		if ( readPrevCommand )
			{
			/* nope, so back up within the break table */
			--breakIndex;
			breakTable = &block->break_table[ breakIndex >> 3 ];
			
			breakLong = *breakTable;
			
			/* shift the command down and extract the data */
			breakCommand = ( breakLong >> ( ( 7 - ( breakIndex & 0x7 ) ) << 2 ) ) & 0xF;	
			if ( breakCommand <= MAX_NATURAL_LENGTH )
				{
				/* a nibble of length data, we already have all the info we need */
				dataNibbles = 0;
				commandData = breakCommand;
				}
			else
			if ( breakCommand == LINE_FEED )
				{
				/* we should only get this when parsing preformatted text */
				dataNibbles = 0;
				commandData = breakCommand;
				}
			else
			if ( breakCommand == BYTE_LENGTH )
				{
				/* a byte of length data */
				dataNibbles = 2;
				}
			else
			if ( breakCommand == WORD_LENGTH )
				{
				/* a short of length data */
				dataNibbles = 4;
				}
			else
			if ( breakCommand == MULTI_BYTE )
				{
				/* 16 bits of data */
				dataNibbles = 4;
				*multiByte = TRUE;
				}
			else
				{
				/* a 24 bits of data */
				dataNibbles = 6;
				}

			if ( dataNibbles > 0 )
				{
				/* skip the command tail */
				if ( ( --breakIndex & 0x7 ) == 7 )
					{
					breakLong = *--breakTable;
					}
				
				/* read in the actual count and the tail command header */
				for ( nibbleCount = 0; nibbleCount < dataNibbles; ++nibbleCount )
					{
					uint32	nibble;
					
					/* grab the next nibble */
					nibble = ( breakLong >> ( ( 7 - ( breakIndex & 0x7 ) ) << 2 ) ) & 0xF;
					commandData |= nibble << ( nibbleCount << 2 );
					
					if ( ( --breakIndex & 0x7 ) == 7 )
						{
						breakLong = *--breakTable;
						}
					}
				}
			}
		}
	
	block->break_read_index = breakIndex;

	*command = commandData;
	
	return hasPrev;
}

static uint8 *
lo_GetPrevTextPosition ( LO_TextBlock * block, uint32 * outWordLength, uint32 * outLineLength, Bool * canBreak )
{
	uint32		wordLength;
	uint32		breakCommand;
	uint32		lineLength;
	uint8 *		endTextRun;
	uint32		totalSkip;
	Bool		havePrevCommand;
	Bool		multiByte;
	
	*canBreak = FALSE;
	totalSkip = 0;
	
	/*
	 * Sanity check for already being at the beginning of the line
	 */
	if ( block->buffer_read_index == block->last_line_break )
		{
		*outWordLength = 0;
		return NULL;
		}
	
	/* are we in a run of breakable multibyte characters? */
	if ( block->multibyte_length > 0 )
		{
		uint16	charSize;
		
		/* BRAIN DAMAGE */
		/* turn this next line on when the uint16 multibyte_char_size field is added to LO_TextBlock */
#if 0
		charSize = block->multibyte_char_size;
#else
		charSize = 2;
#endif
		block->multibyte_index -= charSize;
		
		/* are we at the end of this run? */
		if ( block->multibyte_index == 0 )
			{
			block->multibyte_length = 0;
			}
		
		/* bump by one character */
		*outWordLength = charSize;
		(*outLineLength) -= charSize;
		*canBreak = TRUE;

		block->buffer_read_index -= 2;
		endTextRun = &block->text_buffer[ block->buffer_read_index ];
	
		return endTextRun;
		}
	
	/* back up to the previous command */
	havePrevCommand = lo_ExtractPrevBreakCommand ( block, &multiByte, &breakCommand );
	if ( !havePrevCommand )
		{
		*outWordLength = 0;
		return NULL;
		}
	
	/* back ourselves up in the buffer */
	if ( multiByte )
		{
		uint32	charSize;
		
		*canBreak = TRUE;
			
		/* extract the real word length from the command */
		charSize = ( breakCommand & MULTI_CHAR_SIZE_MASK ) >> MULTI_CHAR_SIZE_SHIFT;
						
		block->multibyte_length = breakCommand & MULTI_LENGTH_MASK;
		block->multibyte_index = block->multibyte_length - charSize;
			
		/* make sure we're not already at the beginning of the run */
		if ( block->multibyte_index == 0 )
			{
			block->multibyte_length = 0;
			}
			
		/* MAJOR BRAIN DAMAGE: WE NEED TO STORE THIS IN THE TEXT BLOCK AS IT WILL NOT */
		/* ALWAYS BE TWO BYTE!!!! */
		XP_ASSERT( charSize == 2 );
		
		/* the length of this run is the char size */
		wordLength = charSize;
		}
	else
		{
		wordLength = breakCommand;
		}
	
	lineLength = block->buffer_read_index;
	
	/*
	 * if we actually have a word here and are not the first word on the line, then 
	 * subtract one to the length to account for the interword space.
	 */
	if ( ( wordLength > 0 ) && ( block->last_line_break != ( lineLength - wordLength )) )
		{
		/* only true if there's a space here */
		if ( XP_IS_SPACE ( block->text_buffer[ lineLength - wordLength - 1 ] ) )
			{
			lineLength--;
			(*outLineLength)--;
			}
		}

	lineLength -= wordLength;
	
	block->buffer_read_index = lineLength;

	endTextRun = &block->text_buffer[ lineLength ];
	
	*outLineLength -= wordLength;
	*outWordLength = wordLength;

	/* We can't break if we've backed up all the way to the start of the buffer and there is */
	/* no break position there */
	if ( ( block->break_read_index == 0 ) && ( wordLength == 0 ) )
		{
		*canBreak = FALSE;
		}
	else
		{
		*canBreak = TRUE;
		}
				
	return endTextRun;
}

static Bool
lo_SetBreakCommand ( LO_TextBlock * block, uint32 command, uint32 commandLength )
{
	uint32		break_write_index;
	uint32 *	break_table;
	
	/* record the current break position as it may be the last entry in the break table */
	block->last_break_offset = block->buffer_write_index;
	block->last_buffer_write_index = block->buffer_write_index;
	
	break_write_index = block->break_write_index;
	
	/* grow the break table if we need to - always have space for one long of data */
	if ( ( break_write_index + 8 ) > block->break_length )
		{
		/* allocate in bytes, count in nibbles */
		block->break_length += BREAK_TABLE_INC * 2;
		block->break_table = XP_REALLOC ( block->break_table, block->break_length / 2 );
		}
	
	break_table = block->break_table;
	
	if ( break_table != NULL )
		{
		uint32	nibble_index;
		
		nibble_index = break_write_index & 0x7;		
		
		/* write the command */
		if ( nibble_index == 0 )
			{
			/* we're long aligned, write the sucker */
			break_table[ break_write_index >> 3 ] = command;
			}
		else
			{
			uint32	table_long;
			uint32	table_index;
			
			table_index = break_write_index >> 3;
			table_long = break_table[ table_index ];
			
			table_long |= command >> ( nibble_index << 2 );
			break_table[ table_index ] = table_long;
			
			/* how many nibbles did we write, and were they enough? */
			nibble_index = 0x8 - nibble_index;
			if ( commandLength > nibble_index )
				{
				/* need to write out some more data */
				break_table[ table_index + 1 ] = command << ( nibble_index << 2 );
				}
			}
		
		break_write_index += commandLength;
		}
	
	block->break_write_index = break_write_index;
	
	return break_table != NULL;
}

static Bool
lo_SetBreakPosition ( LO_TextBlock * block )
{
	uint32		w_length;
	uint32		data_long;
	uint32		command_size;
	Bool		success;
	
	/* how many characters were added for this run */
	w_length = block->buffer_write_index - block->last_buffer_write_index;
	XP_ASSERT ( w_length >= 0 );
	
	if ( w_length <= MAX_NATURAL_LENGTH )
		{
		/* one data nibble */
		command_size = 1;
		data_long = w_length << 28;
		}
	else
	if ( w_length <= 255 )
		{
		/* a command nibble, two data nibbles and then a terminator nibble */
		command_size = 4;
		data_long = ( BYTE_LENGTH << 28 ) | ( w_length << 20 ) | ( BYTE_LENGTH << 16 );
		}
	else
	if ( w_length <= 65535 )
		{
		/* a command nibble, four data nibbles and then a terminator nibble */
		command_size = 6;
		data_long = ( WORD_LENGTH << 28 ) | ( w_length << 12 ) | ( WORD_LENGTH << 8 );
		}
	else
		{
		/* we can have 24 bits of data at most... */
		XP_ASSERT ( w_length <= ( ( 1 << 24 ) - 1 ) );
		
		/* a command nibble, six data nibbles and then a terminator nibble */
		command_size = 8;
		data_long = ( LONG_LENGTH << 28 ) | ( w_length << 4 ) | ( LONG_LENGTH );
		}
	
	success = lo_SetBreakCommand ( block, data_long, command_size );

	return success;
}

static Bool
lo_SetMultiByteRun ( LO_TextBlock * block, int32 charSize, Bool breakable, Bool eachCharBreakable )
{
	uint32		w_length;
	uint32		data_long;
	uint32		command_size;
	Bool		success;
	
	/* how many characters were added for this run */
	w_length = block->buffer_write_index - block->last_buffer_write_index;
	XP_ASSERT ( w_length >= 0 );
	
	/*
	 * There are two cases where we can use a normal simple break entry:
	 *	1. We are not breakable on every char and the text is breakable (the normal break table case).
	 *	2. We can break on every char, but we only have one char in the run
	 */
	if ( breakable )
		{
		if ( !eachCharBreakable || ( charSize == w_length ) )
			{
			return lo_SetBreakPosition ( block );
			}
		}
		
	/* BRAIN DAMAGE: We need to handle overflow of our data word */
	
	/* this break command always has 16 bits of data and so it is 24 bits big */
	command_size = 6;
	
	data_long = w_length;
	
	data_long |= ( charSize << MULTI_CHAR_SIZE_SHIFT ) & MULTI_CHAR_SIZE_MASK;

	XP_ASSERT( w_length <= MULTI_LENGTH_MASK );
	data_long |= ( w_length & MULTI_LENGTH_MASK );
	
	/* set the command nibbles */
	data_long = ( (uint32) MULTI_BYTE << ( MULTI_BYTE_DATA_SIZE + 4 ) ) | (uint32) ( data_long << 4 ) | (uint32) MULTI_BYTE;
	data_long <<= 8;
	
	success = lo_SetBreakCommand ( block, data_long, command_size );

	return success;
}

void lo_BreakOldTextBlockElement(MWContext *context, lo_DocState *state)
{
	LO_TextBlock *	block;
	LO_TextStruct *	text_data;
	LO_TextStruct *	new_text_data;
	char *			text;
	char *			breakPtr;
	int32			save_width;
	uint32			newTextlength;
	LO_TextInfo		text_info;
	int32			base_change;
	int32			old_baseline;
	int32			old_line_height;
	int32			adjust;
	int32			baseline_inc;
	LO_Element *	tptr;
	LO_Element *	eptr;
	LO_Element *	line_ptr;
	
	/* note that the block can be null for a word break element */
	block = state->old_break_block;
		
	/* Move to the element we will break */
	text_data = state->old_break;

	/* If there is no text there to break it is an error. */
	if ( text_data == NULL )
		{
		return;
		}
	
	new_text_data = NULL;
	
	/*
	 * Later operations will trash the width field.
	 * So save it now to restore later.
	 */
	save_width = state->width;
	
	/*
	 * If this element has no text, then it's a special word break
	 * element. We can simply remove it and then add a linefeed and then
	 * insert the remaining text on the line buffer
	 */
	if ( text_data->text == NULL )
		{
		/*
		 * Back up the state to this element's location
		 */
		state->x = text_data->x;
		state->y = text_data->y;

		tptr = text_data->next;
		text_data->next = NULL;

		state->width = text_data->width;
		state->x += state->width;
				
		/* add a line feed */
		lo_SoftLineBreak(context, state, TRUE);
		}
	else
		{
		/*
		 * We're trying to break inside an actual text element. We need to shorten
		 * this element to point up to this break position, then add a linefeed, then
		 * create a new element that contains the remaining text and place it on the
		 * line buffer
		 */
		 
		 /* if we're breaking an element, we must have a text block */
		if ( block == NULL )
			{
			return;
			}

		PA_LOCK(text, char *, text_data->text);
		
		/*
		 * Back the state up to this element's
		 * location, break off the rest of the elements
		 * and save them for later.
		 * Flush this line, and insert a linebreak.
		 */
		state->x = text_data->x;
		state->y = text_data->y;
		tptr = text_data->next;
		text_data->next = NULL;
		
		breakPtr = &text[ state->old_break_pos ];
		newTextlength = text_data->text_len - state->old_break_pos;

		text_data->block_offset = text_data->block_offset - text_data->text_len + state->old_break_pos;
		text_data->text_len = state->old_break_pos;

		FE_GetTextInfo(context, text_data, &text_info);
		state->width = lo_correct_text_element_width( &text_info );
		
		text_data->width = state->width;
		PA_UNLOCK(text_data->text);
		state->x += state->width;
		
		/* this element should point at the space before the next word, so skip it */
		if ( XP_IS_SPACE ( *breakPtr ) )
			{
			++breakPtr;
			--newTextlength;
			}

		/*
		 * If the element that caused this break has a different
		 * baseline than the element we are breaking, we need to
		 * preserve that difference after the break.
		 */
		base_change = state->baseline - (text_data->y_offset + text_info.ascent);

		old_baseline = state->baseline;
		old_line_height = state->line_height;

		/*
		 * Reset element_id so they are still sequencial.
		 */
		state->top_state->element_id = text_data->ele_id + 1;

		/*
		 * If we are breaking an anchor, we need to make sure the
		 * linefeed gets its anchor href set properly.
		 */
		if (text_data->anchor_href != NULL)
			{
			LO_AnchorData *tmp_anchor;

			tmp_anchor = state->current_anchor;
			state->current_anchor = text_data->anchor_href;
			lo_SoftLineBreak(context, state, TRUE);
			state->current_anchor = tmp_anchor;
			}
		else
			{
			lo_SoftLineBreak(context, state, TRUE);
			}

		adjust = lo_baseline_adjust( context, state, tptr, old_baseline, old_line_height );
		state->baseline = old_baseline - adjust;
		state->line_height = (intn) old_line_height - adjust;
		
		/* now create a new text element */
		baseline_inc = -1 * adjust;
		
		new_text_data = (LO_TextStruct *)lo_NewElement ( context, state, LO_TEXT, text_data->edit_element, text_data->edit_offset+text_data->text_len+1 );
		if (text_data == NULL)
			{
#ifdef DEBUG
			assert (state->top_state->out_of_memory);
#endif
			return;
			}

		new_text_data->type = LO_TEXT;
		new_text_data->ele_id = NEXT_ELEMENT;
		new_text_data->x = state->x;
		new_text_data->x_offset = 0;
		new_text_data->y = state->y;
		new_text_data->y_offset = 0;
		new_text_data->height = 0;
		new_text_data->next = NULL;
		new_text_data->prev = NULL;

		new_text_data->anchor_href = block->anchor_href;
		new_text_data->text_attr = block->text_attr;
		new_text_data->ele_attrmask = block->ele_attrmask;
		
		/* BRAIN DAMAGE: Set LO_ELE_INVISIBLE to mark the element as not having a valid text ptr */
		XP_ASSERT ( !(new_text_data->ele_attrmask & LO_ELE_INVISIBLE ) );
		new_text_data->ele_attrmask |= LO_ELE_INVISIBLE;
		
		new_text_data->sel_start = -1;
		new_text_data->sel_end = -1;

		new_text_data->doc_width = state->right_margin - state->x;
		new_text_data->doc_width = 0;
		new_text_data->block_offset = text_data->block_offset + text_data->text_len;
		XP_ASSERT(new_text_data->block_offset <= 65535);
			
		new_text_data->text = (PA_Block) breakPtr;
		new_text_data->text_len = newTextlength;
		FE_GetTextInfo(context, new_text_data, &text_info);
		new_text_data->width = lo_correct_text_element_width(&text_info);

		/*
		 * Some fonts (particulatly italic ones with curly
		 * tails on letters like 'f') have a left bearing
		 * that extends back into the previous character.
		 * Since in this case the previous character is
		 * probably not in the same font, we move forward
		 * to avoid overlap.
		 */
		if (text_info.lbearing < 0)
			{
			new_text_data->x_offset = text_info.lbearing * -1;
			}

		/*
		 * The baseline of the text element just inserted in
		 * the line may be less than or greater than the
		 * baseline of the rest of the line due to font
		 * changes.  If the baseline is less, this is easy,
		 * we just increase y_offest to move the text down
		 * so the baselines line up.  For greater baselines,
		 * we can't move the text up to line up the baselines
		 * because we will overlay the previous line, so we
		 * have to move all rest of the elements in this line
		 * down.
		 *
		 * If the baseline is zero, we are the first element
		 * on the line, and we get to set the baseline.
		 */
		if (state->baseline == 0)
			{
			state->baseline = text_info.ascent;
			}
		else
		if (text_info.ascent < state->baseline)
			{
			new_text_data->y_offset = state->baseline - text_info.ascent;
			}
		else
			{
			baseline_inc = baseline_inc + (text_info.ascent - state->baseline);
			state->baseline = text_info.ascent;
			}

		/*
		 * Now that we have broken, and added the new
		 * element, we need to move it down to restore the
		 * baseline difference that previously existed.
		 */
		new_text_data->y_offset -= base_change;

		/*
		 * Calculate the height of this new
		 * text element.
		 */
		new_text_data->height = text_info.ascent + text_info.descent;
		state->x += new_text_data->width;
		}
	
	/*
	 * if our previous element was the last text element for this block, then our
	 * new element is the new end
	 */
	if ( block->endTextElement == text_data )
		{
		block->endTextElement = new_text_data;
		}
		
	/*
	 * Now add the remaining elements to the line list
	 */
	 
	/* first find the end of the line list */
	line_ptr = state->line_list;
	while ((line_ptr != NULL)&&(line_ptr->lo_any.next != NULL))
		{
		line_ptr = line_ptr->lo_any.next;
		}
	
	/* now add the new_text_data if there is one */
	if ( new_text_data != NULL )
		{
		if (line_ptr == NULL)
			{
			state->line_list = (LO_Element *) new_text_data;
			new_text_data->prev = NULL;
			line_ptr = (LO_Element *) new_text_data;
			}
		else
			{
			line_ptr->lo_any.next = (LO_Element *) new_text_data;
			new_text_data->prev = line_ptr;
			line_ptr = (LO_Element *) new_text_data;
			}
		}
	
	/* and then add tptr */
	if ( tptr != NULL )
		{
		if (line_ptr == NULL)
			{
			state->line_list = tptr;
			tptr->lo_any.prev = NULL;
			line_ptr = tptr;
			}
		else
			{
			line_ptr->lo_any.next = tptr;
			tptr->lo_any.prev = line_ptr;
			line_ptr = tptr;
			}
		}
	
	/* if we've added a new element then increment the element id's of the following elements */
	if ( new_text_data != NULL )
		{
		eptr = tptr;

		while (eptr != NULL)
			{
			eptr->lo_any.ele_id = NEXT_ELEMENT;
			eptr->lo_any.y_offset += baseline_inc;
			eptr = eptr->lo_any.next;
			}
		
		/* and bump the line height if we need to */
		if ( ( new_text_data->y_offset + new_text_data->height ) > state->line_height )
			{
			state->line_height = (intn) new_text_data->y_offset + new_text_data->height;
			}
		}

	/*
	 * Upgrade forward the x and y text positions in the document
	 * state.
	 */
	while ( tptr != NULL )
		{
		lo_UpdateElementPosition ( state, tptr );
		tptr = tptr->lo_any.next;
		}

	state->at_begin_line = FALSE;
	state->width = save_width;
}

static uint8 *
lo_GetLineStart ( LO_TextBlock * block )
{
	return &block->text_buffer[ block->last_line_break ];
}


static void
lo_SkipCharacter ( LO_TextBlock * block )
{
	++block->buffer_read_index;
}


static void
lo_SetLineBreak ( LO_TextBlock * block, Bool skipSpace )
{
	/* if the current character is a space, we can skip it as we're breaking here */
	/* NOT FOR PREFORMATTED TEXT THOUGH */
	if ( skipSpace && ( XP_IS_SPACE ( block->text_buffer[ block->buffer_read_index ] ) ) )
		{
		++block->buffer_read_index;
		}

	block->last_line_break = block->buffer_read_index;
}

static uint8 *
lo_RestoreBreakState ( LO_TextBlock * block, BreakState * state, uint32 * lineLength )
{
	uint8 *	runEnd;
	
	block->buffer_read_index = state->buffer_read_index;
	block->break_read_index = state->break_read_index;
	block->multibyte_index = state->multibyte_index;
	block->multibyte_length = state->multibyte_length;
	block->last_line_break = state->last_line_break;
	
	if ( lineLength != NULL )
		{
		*lineLength = state->lineLength;
		}
	
	runEnd = &block->text_buffer[ block->buffer_read_index ];
	
	return runEnd;
}


static Bool
lo_SkipInitialSpace ( LO_TextBlock * block )
{
	Bool	canBreak;
	uint32	breakLong;
	uint32	breakIndex;
	
	canBreak = FALSE;
	breakIndex = block->break_read_index;
	
	/* do we have a break point at the current text offset */
	if ( ( breakIndex == 0 ) && ( breakIndex < block->break_write_index ) && XP_IS_SPACE ( block->text_buffer[ 0 ] ) )
		{
		breakLong = block->break_table[ breakIndex >> 3 ];
		breakLong >>= ( 7 - ( breakIndex & 0x7 ) ) << 2;
		
		if ( breakLong == 0 )
			{
			block->buffer_read_index++;
			block->break_read_index++;
			block->last_line_break++;
			canBreak = TRUE;
			}
		}
	
	return canBreak;
}


Bool lo_GrowTextBlock ( LO_TextBlock * block, uint32 length )
{
	Bool			success = TRUE;
	uint32			growBy;
	uint32			oldTextBase;
	uint32			offset;
	LO_TextStruct *	textElement;
	LO_TextStruct *	endElement;
	
	if ( block->buffer_length < ( block->buffer_write_index + length ) )
		{
		/* need to make sure that the new size is enough to contain the new data */
		growBy = TEXT_BUFFER_INC;
		if ( growBy < length )
			{
			growBy = length;
			}
		
		oldTextBase = (uint32) block->text_buffer;
		
		growBy += block->buffer_length;
		block->text_buffer = XP_REALLOC ( block->text_buffer, growBy );
		
		block->buffer_length = growBy;
		success = block->text_buffer != NULL;
		
		/* update any break table related information */
		if ( success && ( block->break_table != NULL ) )
			{
			/*
			 * Run through all the text elements and adjust their text addresses to point to the newly
			 * relocated block
			 */
			
			textElement = block->startTextElement;
			endElement = block->endTextElement;
			
			while ( textElement != NULL )
				{
				if ( textElement->type == LO_TEXT )
					{
					offset = (uint32) textElement->text - oldTextBase;
					textElement->text = (PA_Block) ( (uint32) block->text_buffer + offset );
					}
				
				if ( textElement == endElement )
					{
					break;
					}
				
				textElement = (LO_TextStruct *) textElement->next;
				}
			}
		}
	
	return success;
}

static void
lo_CopyText ( uint8 * src, uint8 * dst, uint32 length )
{
	char	c;
	
	/* copy a text string, converting non breaking spaces to normal spaces as we go */
	while ( length-- )
		{
		c = *src++;
		
		if ( c == NON_BREAKING_SPACE )
			{
			c = ' ';
			}
		
		*dst++ = c;
		}
}

static void
lo_CopyTextToLineBuffer ( lo_DocState * state, uint8 * src, uint32 length )
{
	char *	text_buf;

	/* do we need to grow the buffer? */
	if ( ( state->line_buf_len + length + 1 ) > state->line_buf_size )
		{
		state->line_buf = PA_REALLOC ( state->line_buf, ( state->line_buf_size + length + LINE_BUF_INC ) );
		if ( state->line_buf == NULL )
			{
			state->top_state->out_of_memory = TRUE;
			return;
			}
		}
	
	PA_LOCK(text_buf, char *, state->line_buf);
	
	XP_BCOPY ( (char *) src, (char *) ( text_buf + state->line_buf_len ), ( length + 1 ) );
	state->line_buf_len += length;
	
	text_buf[ state->line_buf_len ] = 0;
	
	PA_UNLOCK(state->line_buf);
}

#ifdef TEST_16BIT
#undef XP_WIN16
#endif /* TEST_16BIT */

#ifdef PROFILE
#pragma profile off
#endif