pjs/layout/style/nsStyleStruct.h

1057 строки
33 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsStyleStruct_h___
#define nsStyleStruct_h___
#include "nsColor.h"
#include "nsCoord.h"
#include "nsMargin.h"
#include "nsRect.h"
#include "nsFont.h"
#include "nsVoidArray.h"
#include "nsStyleCoord.h"
#include "nsStyleStruct.h"
#include "nsStyleConsts.h"
#include "nsIStyleSet.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsCOMPtr.h"
#include "nsILanguageAtom.h"
class nsIFrame;
enum nsStyleStructID {
eStyleStruct_Font = 1,
eStyleStruct_Color = 2,
eStyleStruct_Background = 3,
eStyleStruct_List = 4,
eStyleStruct_Position = 5,
eStyleStruct_Text = 6,
eStyleStruct_TextReset = 7,
eStyleStruct_Display = 8,
eStyleStruct_Visibility = 9,
eStyleStruct_Content = 10,
eStyleStruct_Quotes = 11,
eStyleStruct_UserInterface = 12,
eStyleStruct_UIReset = 13,
eStyleStruct_Table = 14,
eStyleStruct_TableBorder = 15,
eStyleStruct_Margin = 16,
eStyleStruct_Padding = 17,
eStyleStruct_Border = 18,
eStyleStruct_Outline = 19,
eStyleStruct_XUL = 20,
eStyleStruct_Max = eStyleStruct_XUL,
eStyleStruct_BorderPaddingShortcut = 21 // only for use in GetStyle()
};
// Bits for each struct.
#define NS_STYLE_INHERIT_BIT(sid_) (1 << (PRInt32(sid_) - 1))
#define NS_STYLE_INHERIT_FONT NS_STYLE_INHERIT_BIT(eStyleStruct_Font)
#define NS_STYLE_INHERIT_COLOR NS_STYLE_INHERIT_BIT(eStyleStruct_Color)
#define NS_STYLE_INHERIT_BACKGROUND NS_STYLE_INHERIT_BIT(eStyleStruct_Background)
#define NS_STYLE_INHERIT_LIST NS_STYLE_INHERIT_BIT(eStyleStruct_List)
#define NS_STYLE_INHERIT_POSITION NS_STYLE_INHERIT_BIT(eStyleStruct_Position)
#define NS_STYLE_INHERIT_TEXT NS_STYLE_INHERIT_BIT(eStyleStruct_Text)
#define NS_STYLE_INHERIT_TEXT_RESET NS_STYLE_INHERIT_BIT(eStyleStruct_TextReset)
#define NS_STYLE_INHERIT_DISPLAY NS_STYLE_INHERIT_BIT(eStyleStruct_Display)
#define NS_STYLE_INHERIT_VISIBILITY NS_STYLE_INHERIT_BIT(eStyleStruct_Visibility)
#define NS_STYLE_INHERIT_TABLE NS_STYLE_INHERIT_BIT(eStyleStruct_Table)
#define NS_STYLE_INHERIT_TABLE_BORDER NS_STYLE_INHERIT_BIT(eStyleStruct_TableBorder)
#define NS_STYLE_INHERIT_CONTENT NS_STYLE_INHERIT_BIT(eStyleStruct_Content)
#define NS_STYLE_INHERIT_QUOTES NS_STYLE_INHERIT_BIT(eStyleStruct_Quotes)
#define NS_STYLE_INHERIT_UI NS_STYLE_INHERIT_BIT(eStyleStruct_UserInterface)
#define NS_STYLE_INHERIT_UI_RESET NS_STYLE_INHERIT_BIT(eStyleStruct_UIReset)
#define NS_STYLE_INHERIT_MARGIN NS_STYLE_INHERIT_BIT(eStyleStruct_Margin)
#define NS_STYLE_INHERIT_PADDING NS_STYLE_INHERIT_BIT(eStyleStruct_Padding)
#define NS_STYLE_INHERIT_BORDER NS_STYLE_INHERIT_BIT(eStyleStruct_Border)
#define NS_STYLE_INHERIT_OUTLINE NS_STYLE_INHERIT_BIT(eStyleStruct_Outline)
#define NS_STYLE_INHERIT_XUL NS_STYLE_INHERIT_BIT(eStyleStruct_XUL)
#define NS_STYLE_INHERIT_MASK 0x0fffff
// A bit to test whether or not a style context can be shared
// by siblings.
#define NS_STYLE_UNIQUE_CONTEXT 0x100000
// A bit to test whether or not we have any text decorations.
#define NS_STYLE_HAS_TEXT_DECORATIONS 0x200000
// The actual structs start here
struct nsStyleStruct {
};
// The lifetime of these objects is managed by the presshell's arena.
struct nsStyleFont : public nsStyleStruct {
nsStyleFont(void);
~nsStyleFont(void) {};
PRInt32 CalcDifference(const nsStyleFont& aOther) const;
static PRInt32 CalcFontDifference(const nsFont& aFont1, const nsFont& aFont2);
void* operator new(size_t sz, nsIPresContext* aContext);
void Destroy(nsIPresContext* aContext);
PRUint8 mFlags; // [inherited] See nsStyleConsts.h
nsFont mFont; // [inherited]
nscoord mSize; // [inherited] Our "computed size". Can be different from mFont.size
// which is our "actual size" and is enforced to be >= the user's
// preferred min-size. mFont.size should be used for display purposes
// while mSize is the value to return in getComputedStyle() for example.
nsStyleFont(const nsFont& aFont);
nsStyleFont(const nsStyleFont& aStyleFont);
nsStyleFont(nsIPresContext* aPresContext);
};
struct nsStyleColor : public nsStyleStruct {
nsStyleColor(nsIPresContext* aPresContext);
nsStyleColor(const nsStyleColor& aOther);
~nsStyleColor(void) {};
PRInt32 CalcDifference(const nsStyleColor& aOther) const;
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleColor();
aContext->FreeToShell(sizeof(nsStyleColor), this);
};
// Don't add ANY members to this struct! We can achieve caching in the rule
// tree (rather than the style tree) by letting color stay by itself! -dwh
nscolor mColor; // [inherited]
};
struct nsStyleBackground : public nsStyleStruct {
nsStyleBackground(nsIPresContext* aPresContext);
nsStyleBackground(const nsStyleBackground& aOther);
~nsStyleBackground() {};
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleBackground();
aContext->FreeToShell(sizeof(nsStyleBackground), this);
};
PRInt32 CalcDifference(const nsStyleBackground& aOther) const;
PRUint8 mBackgroundAttachment; // [reset] See nsStyleConsts.h
PRUint8 mBackgroundFlags; // [reset] See nsStyleConsts.h
PRUint8 mBackgroundRepeat; // [reset] See nsStyleConsts.h
nscolor mBackgroundColor; // [reset]
nscoord mBackgroundXPosition; // [reset]
nscoord mBackgroundYPosition; // [reset]
nsString mBackgroundImage; // [reset] absolute url string
PRBool BackgroundIsTransparent() const {return (mBackgroundFlags &
(NS_STYLE_BG_COLOR_TRANSPARENT | NS_STYLE_BG_IMAGE_NONE)) ==
(NS_STYLE_BG_COLOR_TRANSPARENT | NS_STYLE_BG_IMAGE_NONE);}
};
#define BORDER_COLOR_DEFINED 0x80
#define BORDER_COLOR_TRANSPARENT 0x40
#define BORDER_COLOR_FOREGROUND 0x20
#define BORDER_COLOR_SPECIAL 0x60 // TRANSPARENT | FOREGROUND
#define BORDER_STYLE_MASK 0x1F
#define NS_SPACING_MARGIN 0
#define NS_SPACING_PADDING 1
#define NS_SPACING_BORDER 2
struct nsStyleMargin: public nsStyleStruct {
nsStyleMargin(void);
nsStyleMargin(const nsStyleMargin& aMargin);
~nsStyleMargin(void) {};
void* operator new(size_t sz, nsIPresContext* aContext);
void Destroy(nsIPresContext* aContext);
void RecalcData();
PRInt32 CalcDifference(const nsStyleMargin& aOther) const;
nsStyleSides mMargin; // [reset] length, percent, auto, inherit
PRBool GetMargin(nsMargin& aMargin) const
{
if (mHasCachedMargin) {
aMargin = mCachedMargin;
return PR_TRUE;
}
return PR_FALSE;
}
// XXX this is a deprecated method
void CalcMarginFor(const nsIFrame* aFrame, nsMargin& aMargin) const;
protected:
PRPackedBool mHasCachedMargin;
nsMargin mCachedMargin;
};
struct nsStylePadding: public nsStyleStruct {
nsStylePadding(void);
nsStylePadding(const nsStylePadding& aPadding);
~nsStylePadding(void) {};
void* operator new(size_t sz, nsIPresContext* aContext);
void Destroy(nsIPresContext* aContext);
void RecalcData();
PRInt32 CalcDifference(const nsStylePadding& aOther) const;
nsStyleSides mPadding; // [reset] length, percent, inherit
PRBool GetPadding(nsMargin& aPadding) const
{
if (mHasCachedPadding) {
aPadding = mCachedPadding;
return PR_TRUE;
}
return PR_FALSE;
}
// XXX this is a deprecated method
void CalcPaddingFor(const nsIFrame* aFrame, nsMargin& aPadding) const;
protected:
PRPackedBool mHasCachedPadding;
nsMargin mCachedPadding;
};
struct nsStyleBorder: public nsStyleStruct {
nsStyleBorder() {};
nsStyleBorder(nsIPresContext* aContext);
nsStyleBorder(const nsStyleBorder& aBorder);
~nsStyleBorder(void) {};
void* operator new(size_t sz, nsIPresContext* aContext);
void Destroy(nsIPresContext* aContext);
PRBool IsBorderSideVisible(PRUint8 aSide) const;
void RecalcData();
PRInt32 CalcDifference(const nsStyleBorder& aOther) const;
nsStyleSides mBorder; // [reset] length, enum (see nsStyleConsts.h)
nsStyleSides mBorderRadius; // [reset] length, percent, inherit
PRUint8 mFloatEdge; // [reset] see nsStyleConsts.h
PRBool GetBorder(nsMargin& aBorder) const
{
if (mHasCachedBorder) {
aBorder = mCachedBorder;
return PR_TRUE;
}
return PR_FALSE;
}
PRUint8 GetBorderStyle(PRUint8 aSide) const
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
return (mBorderStyle[aSide] & BORDER_STYLE_MASK);
}
void SetBorderStyle(PRUint8 aSide, PRUint8 aStyle)
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
mBorderStyle[aSide] &= ~BORDER_STYLE_MASK;
mBorderStyle[aSide] |= (aStyle & BORDER_STYLE_MASK);
}
void GetBorderColor(PRUint8 aSide, nscolor& aColor,
PRBool& aTransparent, PRBool& aForeground) const
{
aTransparent = aForeground = PR_FALSE;
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
if ((mBorderStyle[aSide] & BORDER_COLOR_SPECIAL) == 0)
aColor = mBorderColor[aSide];
else if (mBorderStyle[aSide] & BORDER_COLOR_FOREGROUND)
aForeground = PR_TRUE;
else
aTransparent = PR_TRUE;
}
void SetBorderColor(PRUint8 aSide, nscolor aColor)
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
mBorderColor[aSide] = aColor;
mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
mBorderStyle[aSide] |= BORDER_COLOR_DEFINED;
}
void SetBorderTransparent(PRUint8 aSide)
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
mBorderStyle[aSide] |= (BORDER_COLOR_DEFINED | BORDER_COLOR_TRANSPARENT);
}
void SetBorderToForeground(PRUint8 aSide)
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
mBorderStyle[aSide] |= (BORDER_COLOR_DEFINED | BORDER_COLOR_FOREGROUND);
}
void UnsetBorderColor(PRUint8 aSide)
{
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
mBorderStyle[aSide] &= BORDER_STYLE_MASK;
}
// XXX these are deprecated methods
void CalcBorderFor(const nsIFrame* aFrame, nsMargin& aBorder) const;
protected:
PRPackedBool mHasCachedBorder;
nsMargin mCachedBorder;
PRUint8 mBorderStyle[4]; // [reset] See nsStyleConsts.h
nscolor mBorderColor[4]; // [reset]
// XXX remove with deprecated methods
nscoord mBorderWidths[3];
};
struct nsStyleBorderPadding: public nsStyleStruct {
nsStyleBorderPadding(void) { mHasCachedBorderPadding = PR_FALSE; };
~nsStyleBorderPadding(void) {};
PRBool GetBorderPadding(nsMargin& aBorderPadding) const {
if (mHasCachedBorderPadding) {
aBorderPadding = mCachedBorderPadding;
return PR_TRUE;
}
return PR_FALSE;
}
void SetBorderPadding(nsMargin aBorderPadding) {
mCachedBorderPadding = aBorderPadding;
mHasCachedBorderPadding = PR_TRUE;
}
protected:
nsMargin mCachedBorderPadding;
PRPackedBool mHasCachedBorderPadding;
};
struct nsStyleOutline: public nsStyleStruct {
nsStyleOutline(nsIPresContext* aPresContext);
nsStyleOutline(const nsStyleOutline& aOutline);
~nsStyleOutline(void) {};
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleOutline();
aContext->FreeToShell(sizeof(nsStyleOutline), this);
};
void RecalcData();
PRInt32 CalcDifference(const nsStyleOutline& aOther) const;
nsStyleSides mOutlineRadius; // [reset] length, percent, inherit
// (top=topLeft, right=topRight, bottom=bottomRight, left=bottomLeft)
nsStyleCoord mOutlineWidth; // [reset] length, enum (see nsStyleConsts.h)
PRBool GetOutlineWidth(nscoord& aWidth) const
{
if (mHasCachedOutline) {
aWidth = mCachedOutlineWidth;
return PR_TRUE;
}
return PR_FALSE;
}
PRUint8 GetOutlineStyle(void) const
{
return (mOutlineStyle & BORDER_STYLE_MASK);
}
void SetOutlineStyle(PRUint8 aStyle)
{
mOutlineStyle &= ~BORDER_STYLE_MASK;
mOutlineStyle |= (aStyle & BORDER_STYLE_MASK);
}
// PR_FALSE means INVERT
PRBool GetOutlineColor(nscolor& aColor) const
{
if ((mOutlineStyle & BORDER_COLOR_SPECIAL) == 0) {
aColor = mOutlineColor;
return PR_TRUE;
}
return PR_FALSE;
}
void SetOutlineColor(nscolor aColor)
{
mOutlineColor = aColor;
mOutlineStyle &= ~BORDER_COLOR_SPECIAL;
mOutlineStyle |= BORDER_COLOR_DEFINED;
}
void SetOutlineInvert(void)
{
mOutlineStyle |= (BORDER_COLOR_DEFINED | BORDER_COLOR_SPECIAL);
}
PRBool GetOutlineInvert(void) const
{
return(mOutlineStyle & BORDER_COLOR_SPECIAL);
}
protected:
PRPackedBool mHasCachedOutline;
nscoord mCachedOutlineWidth;
PRUint8 mOutlineStyle; // [reset] See nsStyleConsts.h
nscolor mOutlineColor; // [reset]
// XXX remove with deprecated methods
nscoord mBorderWidths[3];
};
struct nsStyleList : public nsStyleStruct {
nsStyleList(void);
nsStyleList(const nsStyleList& aStyleList);
~nsStyleList(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleList();
aContext->FreeToShell(sizeof(nsStyleList), this);
};
PRInt32 CalcDifference(const nsStyleList& aOther) const;
PRUint8 mListStyleType; // [inherited] See nsStyleConsts.h
PRUint8 mListStylePosition; // [inherited]
nsString mListStyleImage; // [inherited] absolute url string
};
struct nsStylePosition : public nsStyleStruct {
nsStylePosition(void);
nsStylePosition(const nsStylePosition& aOther);
~nsStylePosition(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStylePosition();
aContext->FreeToShell(sizeof(nsStylePosition), this);
};
PRInt32 CalcDifference(const nsStylePosition& aOther) const;
nsStyleSides mOffset; // [reset]
nsStyleCoord mWidth; // [reset] coord, percent, auto, inherit
nsStyleCoord mMinWidth; // [reset] coord, percent, inherit
nsStyleCoord mMaxWidth; // [reset] coord, percent, null, inherit
nsStyleCoord mHeight; // [reset] coord, percent, auto, inherit
nsStyleCoord mMinHeight; // [reset] coord, percent, inherit
nsStyleCoord mMaxHeight; // [reset] coord, percent, null, inherit
PRUint8 mBoxSizing; // [reset] see nsStyleConsts.h
nsStyleCoord mZIndex; // [reset]
};
struct nsStyleTextReset : public nsStyleStruct {
nsStyleTextReset(void);
nsStyleTextReset(const nsStyleTextReset& aOther);
~nsStyleTextReset(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleTextReset();
aContext->FreeToShell(sizeof(nsStyleTextReset), this);
};
PRInt32 CalcDifference(const nsStyleTextReset& aOther) const;
PRUint8 mTextDecoration; // [reset] see nsStyleConsts.h
#ifdef IBMBIDI
PRUint8 mUnicodeBidi; // [reset] see nsStyleConsts.h
#endif // IBMBIDI
nsStyleCoord mVerticalAlign; // [reset] see nsStyleConsts.h for enums
};
struct nsStyleText : public nsStyleStruct {
nsStyleText(void);
nsStyleText(const nsStyleText& aOther);
~nsStyleText(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleText();
aContext->FreeToShell(sizeof(nsStyleText), this);
};
PRInt32 CalcDifference(const nsStyleText& aOther) const;
PRUint8 mTextAlign; // [inherited] see nsStyleConsts.h
PRUint8 mTextTransform; // [inherited] see nsStyleConsts.h
PRUint8 mWhiteSpace; // [inherited] see nsStyleConsts.h
nsStyleCoord mLetterSpacing; // [inherited]
nsStyleCoord mLineHeight; // [inherited]
nsStyleCoord mTextIndent; // [inherited]
nsStyleCoord mWordSpacing; // [inherited]
PRBool WhiteSpaceIsSignificant() const {
return mWhiteSpace == NS_STYLE_WHITESPACE_PRE;
}
};
struct nsStyleVisibility : public nsStyleStruct {
nsStyleVisibility(nsIPresContext* aPresContext);
nsStyleVisibility(const nsStyleVisibility& aVisibility);
~nsStyleVisibility() {};
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleVisibility();
aContext->FreeToShell(sizeof(nsStyleVisibility), this);
};
PRInt32 CalcDifference(const nsStyleVisibility& aOther) const;
PRUint8 mDirection; // [inherited] see nsStyleConsts.h NS_STYLE_DIRECTION_*
PRUint8 mVisible; // [inherited]
nsCOMPtr<nsILanguageAtom> mLanguage; // [inherited]
float mOpacity; // [inherited] percentage
PRBool IsVisible() const {
return (mVisible == NS_STYLE_VISIBILITY_VISIBLE);
}
PRBool IsVisibleOrCollapsed() const {
return ((mVisible == NS_STYLE_VISIBILITY_VISIBLE) ||
(mVisible == NS_STYLE_VISIBILITY_COLLAPSE));
}
};
struct nsStyleDisplay : public nsStyleStruct {
nsStyleDisplay();
nsStyleDisplay(const nsStyleDisplay& aOther);
~nsStyleDisplay() {};
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleDisplay();
aContext->FreeToShell(sizeof(nsStyleDisplay), this);
};
PRInt32 CalcDifference(const nsStyleDisplay& aOther) const;
PRUint8 mDisplay; // [reset] see nsStyleConsts.h NS_STYLE_DISPLAY_*
nsString mBinding; // [reset] absolute url string
PRUint8 mPosition; // [reset] see nsStyleConsts.h
PRUint8 mFloats; // [reset] see nsStyleConsts.h NS_STYLE_FLOAT_*
PRUint8 mBreakType; // [reset] see nsStyleConsts.h NS_STYLE_CLEAR_*
PRPackedBool mBreakBefore; // [reset]
PRPackedBool mBreakAfter; // [reset]
PRUint8 mOverflow; // [reset] see nsStyleConsts.h
PRUint8 mClipFlags; // [reset] see nsStyleConsts.h
#if 0
// XXX This is how it is defined in the CSS2 spec, but the errata
// changed it to be consistent with the positioning draft and how
// Nav and IE implement it
nsMargin mClip; // [reset] offsets from respective edge
#else
nsRect mClip; // [reset] offsets from upper-left border edge
#endif
PRBool IsBlockLevel() const {return (NS_STYLE_DISPLAY_BLOCK == mDisplay) ||
(NS_STYLE_DISPLAY_LIST_ITEM == mDisplay) ||
(NS_STYLE_DISPLAY_TABLE == mDisplay);}
PRBool IsFloating() const {
return NS_STYLE_FLOAT_NONE != mFloats;
}
PRBool IsAbsolutelyPositioned() const {return (NS_STYLE_POSITION_ABSOLUTE == mPosition) ||
(NS_STYLE_POSITION_FIXED == mPosition);}
PRBool IsPositioned() const {return IsAbsolutelyPositioned() ||
(NS_STYLE_POSITION_RELATIVE == mPosition);}
};
struct nsStyleTable: public nsStyleStruct {
nsStyleTable(void);
nsStyleTable(const nsStyleTable& aOther);
~nsStyleTable(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleTable();
aContext->FreeToShell(sizeof(nsStyleTable), this);
};
PRInt32 CalcDifference(const nsStyleTable& aOther) const;
PRUint8 mLayoutStrategy;// [reset] see nsStyleConsts.h NS_STYLE_TABLE_LAYOUT_*
PRUint8 mFrame; // [reset] see nsStyleConsts.h NS_STYLE_TABLE_FRAME_*
PRUint8 mRules; // [reset] see nsStyleConsts.h NS_STYLE_TABLE_RULES_*
PRInt32 mCols; // [reset] an integer if set, or see nsStyleConsts.h NS_STYLE_TABLE_COLS_*
PRInt32 mSpan; // [reset] the number of columns spanned by a colgroup or col
};
struct nsStyleTableBorder: public nsStyleStruct {
nsStyleTableBorder(nsIPresContext* aContext);
nsStyleTableBorder(const nsStyleTableBorder& aOther);
~nsStyleTableBorder(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleTableBorder();
aContext->FreeToShell(sizeof(nsStyleTableBorder), this);
};
PRInt32 CalcDifference(const nsStyleTableBorder& aOther) const;
PRUint8 mBorderCollapse;// [inherited]
nsStyleCoord mBorderSpacingX;// [inherited]
nsStyleCoord mBorderSpacingY;// [inherited]
PRUint8 mCaptionSide; // [inherited]
PRUint8 mEmptyCells; // [inherited]
};
enum nsStyleContentType {
eStyleContentType_String = 1,
eStyleContentType_URL = 10,
eStyleContentType_Attr = 20,
eStyleContentType_Counter = 30,
eStyleContentType_Counters = 31,
eStyleContentType_OpenQuote = 40,
eStyleContentType_CloseQuote = 41,
eStyleContentType_NoOpenQuote = 42,
eStyleContentType_NoCloseQuote = 43
};
struct nsStyleContentData {
nsStyleContentType mType;
nsString mContent;
};
struct nsStyleCounterData {
nsString mCounter;
PRInt32 mValue;
};
#define DELETE_ARRAY_IF(array) if (array) { delete[] array; array = nsnull; }
struct nsStyleQuotes : public nsStyleStruct {
nsStyleQuotes();
nsStyleQuotes(const nsStyleQuotes& aQuotes);
~nsStyleQuotes();
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleQuotes();
aContext->FreeToShell(sizeof(nsStyleQuotes), this);
};
PRInt32 CalcDifference(const nsStyleQuotes& aOther) const;
PRUint32 QuotesCount(void) const { return mQuotesCount; } // [inherited]
nsresult GetQuotesAt(PRUint32 aIndex, nsString& aOpen, nsString& aClose) const {
if (aIndex < mQuotesCount) {
aIndex *= 2;
aOpen = mQuotes[aIndex];
aClose = mQuotes[++aIndex];
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult AllocateQuotes(PRUint32 aCount) {
if (aCount != mQuotesCount) {
DELETE_ARRAY_IF(mQuotes);
if (aCount) {
mQuotes = new nsString[aCount * 2];
if (! mQuotes) {
mQuotesCount = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
mQuotesCount = aCount;
}
return NS_OK;
}
nsresult SetQuotesAt(PRUint32 aIndex, const nsString& aOpen, const nsString& aClose) {
if (aIndex < mQuotesCount) {
aIndex *= 2;
mQuotes[aIndex] = aOpen;
mQuotes[++aIndex] = aClose;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
protected:
PRUint32 mQuotesCount;
nsString* mQuotes;
};
struct nsStyleContent: public nsStyleStruct {
nsStyleContent(void);
nsStyleContent(const nsStyleContent& aContent);
~nsStyleContent(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleContent();
aContext->FreeToShell(sizeof(nsStyleContent), this);
};
PRInt32 CalcDifference(const nsStyleContent& aOther) const;
PRUint32 ContentCount(void) const { return mContentCount; } // [reset]
nsresult GetContentAt(PRUint32 aIndex, nsStyleContentType& aType, nsString& aContent) const {
if (aIndex < mContentCount) {
aType = mContents[aIndex].mType;
aContent = mContents[aIndex].mContent;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult AllocateContents(PRUint32 aCount) {
if (aCount != mContentCount) {
DELETE_ARRAY_IF(mContents);
if (aCount) {
mContents = new nsStyleContentData[aCount];
if (! mContents) {
mContentCount = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
mContentCount = aCount;
}
return NS_OK;
}
nsresult SetContentAt(PRUint32 aIndex, nsStyleContentType aType, const nsString& aContent) {
if (aIndex < mContentCount) {
mContents[aIndex].mType = aType;
if (aType < eStyleContentType_OpenQuote) {
mContents[aIndex].mContent = aContent;
}
else {
mContents[aIndex].mContent.Truncate();
}
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
PRUint32 CounterIncrementCount(void) const { return mIncrementCount; } // [reset]
nsresult GetCounterIncrementAt(PRUint32 aIndex, nsString& aCounter, PRInt32& aIncrement) const {
if (aIndex < mIncrementCount) {
aCounter = mIncrements[aIndex].mCounter;
aIncrement = mIncrements[aIndex].mValue;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult AllocateCounterIncrements(PRUint32 aCount) {
if (aCount != mIncrementCount) {
DELETE_ARRAY_IF(mIncrements);
if (aCount) {
mIncrements = new nsStyleCounterData[aCount];
if (! mIncrements) {
mIncrementCount = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
mIncrementCount = aCount;
}
return NS_OK;
}
nsresult SetCounterIncrementAt(PRUint32 aIndex, const nsString& aCounter, PRInt32 aIncrement) {
if (aIndex < mIncrementCount) {
mIncrements[aIndex].mCounter = aCounter;
mIncrements[aIndex].mValue = aIncrement;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
PRUint32 CounterResetCount(void) const { return mResetCount; } // [reset]
nsresult GetCounterResetAt(PRUint32 aIndex, nsString& aCounter, PRInt32& aValue) const {
if (aIndex < mResetCount) {
aCounter = mResets[aIndex].mCounter;
aValue = mResets[aIndex].mValue;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult AllocateCounterResets(PRUint32 aCount) {
if (aCount != mResetCount) {
DELETE_ARRAY_IF(mResets);
if (aCount) {
mResets = new nsStyleCounterData[aCount];
if (! mResets) {
mResetCount = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
}
mResetCount = aCount;
}
return NS_OK;
}
nsresult SetCounterResetAt(PRUint32 aIndex, const nsString& aCounter, PRInt32 aValue) {
if (aIndex < mResetCount) {
mResets[aIndex].mCounter = aCounter;
mResets[aIndex].mValue = aValue;
return NS_OK;
}
return NS_ERROR_ILLEGAL_VALUE;
}
nsStyleCoord mMarkerOffset; // [reset]
protected:
PRUint32 mContentCount;
nsStyleContentData* mContents;
PRUint32 mIncrementCount;
nsStyleCounterData* mIncrements;
PRUint32 mResetCount;
nsStyleCounterData* mResets;
};
struct nsStyleUIReset: public nsStyleStruct {
nsStyleUIReset(void);
nsStyleUIReset(const nsStyleUIReset& aOther);
~nsStyleUIReset(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleUIReset();
aContext->FreeToShell(sizeof(nsStyleUIReset), this);
};
PRInt32 CalcDifference(const nsStyleUIReset& aOther) const;
PRUint8 mUserSelect; // [reset] (selection-style)
PRUnichar mKeyEquivalent; // [reset] XXX what type should this be?
PRUint8 mResizer; // [reset]
};
struct nsStyleUserInterface: public nsStyleStruct {
nsStyleUserInterface(void);
nsStyleUserInterface(const nsStyleUserInterface& aOther);
~nsStyleUserInterface(void);
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleUserInterface();
aContext->FreeToShell(sizeof(nsStyleUserInterface), this);
};
PRInt32 CalcDifference(const nsStyleUserInterface& aOther) const;
PRUint8 mUserInput; // [inherited]
PRUint8 mUserModify; // [inherited] (modify-content)
PRUint8 mUserFocus; // [inherited] (auto-select)
PRUint8 mCursor; // [inherited] See nsStyleConsts.h NS_STYLE_CURSOR_*
nsString mCursorImage; // [inherited] url string
};
#ifdef INCLUDE_XUL
struct nsStyleXUL : public nsStyleStruct {
nsStyleXUL();
nsStyleXUL(const nsStyleXUL& aSource);
~nsStyleXUL();
void* operator new(size_t sz, nsIPresContext* aContext) {
void* result = nsnull;
aContext->AllocateFromShell(sz, &result);
return result;
}
void Destroy(nsIPresContext* aContext) {
this->~nsStyleXUL();
aContext->FreeToShell(sizeof(nsStyleXUL), this);
};
PRInt32 CalcDifference(const nsStyleXUL& aOther) const;
PRUint8 mBoxAlign; // [reset] see nsStyleConsts.h
PRUint8 mBoxDirection; // [reset] see nsStyleConsts.h
float mBoxFlex; // [reset] see nsStyleConsts.h
PRUint8 mBoxOrient; // [reset] see nsStyleConsts.h
PRUint8 mBoxPack; // [reset] see nsStyleConsts.h
PRUint32 mBoxOrdinal; // [reset] see nsStyleConsts.h
};
#endif
#define BORDER_PRECEDENT_EQUAL 0
#define BORDER_PRECEDENT_LOWER 1
#define BORDER_PRECEDENT_HIGHER 2
struct nsBorderEdges;
/** an encapsulation of border edge info */
struct nsBorderEdge
{
/** the thickness of the edge */
nscoord mWidth;
/** the length of the edge */
nscoord mLength;
PRUint8 mStyle;
nscolor mColor;
/** which side does this edge represent? */
PRUint8 mSide;
/** if this edge is an outside edge, the border infor for the adjacent inside object */
nsBorderEdges * mInsideNeighbor;
nsBorderEdge();
};
inline nsBorderEdge::nsBorderEdge()
{
mWidth=0;
mLength=0;
mStyle=NS_STYLE_BORDER_STYLE_NONE;
mColor=0;
mSide=NS_SIDE_LEFT;
mInsideNeighbor = nsnull;
};
/** an encapsulation of a border defined by its edges
* owner of this struct is responsible for freeing any data stored in mEdges
*/
struct nsBorderEdges
{
nsVoidArray mEdges[4];
nsMargin mMaxBorderWidth;
PRPackedBool mOutsideEdge;
nsBorderEdges();
};
inline nsBorderEdges::nsBorderEdges()
{
mMaxBorderWidth.SizeTo(0,0,0,0);
mOutsideEdge = PR_TRUE;
};
#endif /* nsStyleStruct_h___ */