зеркало из https://github.com/mozilla/gecko-dev.git
1969 строки
77 KiB
C++
1969 строки
77 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#define PL_ARENA_CONST_ALIGN_MASK (sizeof(void*)-1)
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#include "plarena.h"
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#include "BasicTableLayoutStrategy.h"
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#include "nsPresContext.h"
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#include "nsTableFrame.h"
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#include "nsTableColFrame.h"
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#include "nsTableCellFrame.h"
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#include "nsStyleConsts.h"
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#include "nsQuickSort.h"
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#define ARENA_ALLOCATE(var, pool, num, type) \
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{void *_tmp_; PL_ARENA_ALLOCATE(_tmp_, pool, (num*sizeof(type))); \
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var = NS_REINTERPRET_CAST(type*, _tmp_); }
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// Local class used to hold information about table cells so we do not
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// have to look it up multiple times
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struct CellInfo {
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nsTableCellFrame *cellFrame;
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PRInt32 colSpan;
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};
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#ifdef DEBUG_TABLE_STRATEGY
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static PRInt32 gsDebugCount = 0;
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#endif
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// The priority of allocations for columns is as follows
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// 1) max(MIN, MIN_ADJ)
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// 2) max (PCT, PCT_ADJ)
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// 3) FIX
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// 4) FIX_ADJ
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// 5) max(DES_CON, DES_ADJ), but use MIN_PRO if present
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// 6) for a fixed width table, the column may get more
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// space if the sum of the col allocations is insufficient
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// the logic here is kept in synch with that in CalculateTotals.
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PRBool CanAllocate(PRInt32 aType,
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PRInt32 aPrevType,
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nsTableColFrame* aColFrame)
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{
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switch(aType) {
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case PCT:
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case FIX:
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case DES_CON:
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return (WIDTH_NOT_SET == aPrevType);
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case FIX_ADJ:
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return (WIDTH_NOT_SET == aPrevType) || (FIX == aPrevType);
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default:
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NS_ASSERTION(PR_FALSE, "invalid call");
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}
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return PR_FALSE;
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}
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// this doesn't work for a col frame which might get its width from a col
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PRBool
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HasPctValue(const nsIFrame* aFrame)
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{
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const nsStylePosition* position = aFrame->GetStylePosition();
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if (eStyleUnit_Percent == position->mWidth.GetUnit()) {
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float percent = position->mWidth.GetPercentValue();
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if (percent > 0.0f) {
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return PR_TRUE;
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}
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}
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return PR_FALSE;
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}
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/* ---------- BasicTableLayoutStrategy ---------- */
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BasicTableLayoutStrategy::BasicTableLayoutStrategy(nsTableFrame *aFrame, PRBool aIsNavQuirks)
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{
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MOZ_COUNT_CTOR(BasicTableLayoutStrategy);
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NS_ASSERTION(nsnull != aFrame, "bad frame arg");
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mTableFrame = aFrame;
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mCellSpacingTotal = 0;
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mIsNavQuirksMode = aIsNavQuirks;
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}
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BasicTableLayoutStrategy::~BasicTableLayoutStrategy()
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{
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MOZ_COUNT_DTOR(BasicTableLayoutStrategy);
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}
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PRBool BasicTableLayoutStrategy::Initialize(const nsHTMLReflowState& aReflowState)
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{
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#ifdef DEBUG_TABLE_REFLOW_TIMING
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nsTableFrame::DebugTimeMethod(nsTableFrame::eInit, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_TRUE);
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#endif
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ContinuingFrameCheck();
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PRBool result = PR_TRUE;
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// re-init instance variables
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mCellSpacingTotal = 0;
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mCols = mTableFrame->GetEffectiveCOLSAttribute();
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mTableFrame->SetHasPctCol(PR_FALSE);
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nscoord boxWidth = mTableFrame->CalcBorderBoxWidth(aReflowState);
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PRBool hasPctCol = AssignNonPctColumnWidths(boxWidth, aReflowState);
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mTableFrame->SetHasPctCol(hasPctCol);
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// calc the min, desired, preferred widths from what we know so far
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nscoord minWidth, prefWidth;
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mTableFrame->CalcMinAndPreferredWidths(aReflowState, PR_FALSE, minWidth, prefWidth);
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if (hasPctCol && mTableFrame->IsAutoWidth()) {
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prefWidth = CalcPctAdjTableWidth(aReflowState, boxWidth);
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}
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// calc the desired width, considering if there is a specified width.
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// don't use nsTableFrame::CalcDesiredWidth because it is based on table column widths.
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nscoord desWidth = (mTableFrame->IsAutoWidth()) ? PR_MIN(prefWidth, aReflowState.availableWidth)
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: prefWidth;
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desWidth = PR_MAX(desWidth, minWidth);
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mTableFrame->SetMinWidth(minWidth);
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mTableFrame->SetDesiredWidth(desWidth);
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mTableFrame->SetPreferredWidth(prefWidth);
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mTableFrame->SetNeedStrategyInit(PR_FALSE);
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#ifdef DEBUG_TABLE_REFLOW_TIMING
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nsTableFrame::DebugTimeMethod(nsTableFrame::eInit, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_FALSE);
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#endif
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return result;
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}
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void BasicTableLayoutStrategy::ContinuingFrameCheck()
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{
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NS_ASSERTION(!mTableFrame->GetPrevInFlow(),
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"never ever call me on a continuing frame!");
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}
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PRBool BCW_Wrapup(const nsHTMLReflowState& aReflowState,
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BasicTableLayoutStrategy* aStrategy,
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nsTableFrame* aTableFrame,
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PRInt32* aAllocTypes)
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{
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if (aAllocTypes)
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delete [] aAllocTypes;
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#ifdef DEBUG_TABLE_STRATEGY
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printf("BalanceColumnWidths ex \n"); aTableFrame->Dump(PR_FALSE, PR_TRUE, PR_FALSE);
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#endif
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#ifdef DEBUG_TABLE_REFLOW_TIMING
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nsTableFrame::DebugTimeMethod(nsTableFrame::eBalanceCols, *aTableFrame, (nsHTMLReflowState&)aReflowState, PR_FALSE);
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#endif
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return PR_TRUE;
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}
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void
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ResetPctValues(nsTableFrame* aTableFrame,
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PRInt32 aNumCols)
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{
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// initialize the col percent and cell percent values to 0.
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PRInt32 colX;
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for (colX = 0; colX < aNumCols; colX++) {
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nsTableColFrame* colFrame = aTableFrame->GetColFrame(colX);
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if (colFrame) {
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colFrame->SetWidth(PCT, WIDTH_NOT_SET);
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colFrame->SetWidth(PCT_ADJ, WIDTH_NOT_SET);
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}
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}
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}
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PRBool
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BasicTableLayoutStrategy::BalanceColumnWidths(const nsHTMLReflowState& aReflowState)
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{
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#ifdef DEBUG_TABLE_STRATEGY
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printf("BalanceColumnWidths en count=%d \n", gsDebugCount++); mTableFrame->Dump(PR_FALSE, PR_TRUE, PR_FALSE);
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#endif
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#ifdef DEBUG_TABLE_REFLOW_TIMING
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nsTableFrame::DebugTimeMethod(nsTableFrame::eBalanceCols, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_TRUE);
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#endif
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float p2t = mTableFrame->GetPresContext()->ScaledPixelsToTwips();
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ContinuingFrameCheck();
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PRInt32 numCols = mTableFrame->GetColCount();
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PRBool tableIsAutoWidth = mTableFrame->IsAutoWidth();
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nscoord horOffset;
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// get the reduction in available horizontal space due to borders and padding
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nsMargin offset = mTableFrame->GetChildAreaOffset(&aReflowState);
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horOffset = offset.left + offset.right;
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// determine if the table is auto/fixed and get the fixed width if available
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nscoord maxWidth = mTableFrame->CalcBorderBoxWidth(aReflowState);
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if (NS_UNCONSTRAINEDSIZE == maxWidth) {
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maxWidth = PR_MIN(maxWidth, aReflowState.availableWidth);
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if (NS_UNCONSTRAINEDSIZE == maxWidth) {
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NS_ASSERTION(NS_UNCONSTRAINEDSIZE != maxWidth, "cannot balance with an unconstrained width");
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return PR_FALSE;
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}
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}
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// initialize the col percent and cell percent values to 0.
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ResetPctValues(mTableFrame, numCols);
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// An auto table returns a new table width based on percent cells/cols if they exist
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nscoord perAdjTableWidth = 0;
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if (mTableFrame->HasPctCol()) {
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perAdjTableWidth = AssignPctColumnWidths(aReflowState, maxWidth, tableIsAutoWidth, p2t);
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if (perAdjTableWidth > 0) {
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// if an auto table has a pct col or cell, set the preferred table width
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// here so that CalcPctAdjTableWidth wont't need to be called by the table
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mTableFrame->SetPreferredWidth(perAdjTableWidth);
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}
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perAdjTableWidth = PR_MIN(perAdjTableWidth, maxWidth);
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perAdjTableWidth -= horOffset;
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perAdjTableWidth = PR_MAX(perAdjTableWidth, 0);
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}
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// reduce the maxWidth by border and padding, since we will be dealing with content width
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maxWidth -= horOffset;
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maxWidth = PR_MAX(0, maxWidth);
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// we will re-calc mCellSpacingTotal in case longer rows were added after Initialize was called
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mCellSpacingTotal = 0;
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nscoord spacingX = mTableFrame->GetCellSpacingX();
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PRInt32 numNonZeroWidthCols = 0;
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// set the table's columns to the min width
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nscoord minTableWidth = 0;
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PRInt32 colX;
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for (colX = 0; colX < numCols; colX++) {
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nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
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if (!colFrame) continue;
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nscoord colMinWidth = colFrame->GetMinWidth();
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mTableFrame->SetColumnWidth(colX, colMinWidth);
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minTableWidth += colMinWidth;
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if ((colFrame->GetMinWidth() > 0) || (colFrame->GetDesWidth() > 0) ||
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(colFrame->GetFixWidth() > 0) || (colFrame->GetPctWidth() > 0) ||
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(colFrame->GetWidth(MIN_PRO) > 0)) {
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numNonZeroWidthCols++;
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}
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if (mTableFrame->GetNumCellsOriginatingInCol(colX) > 0) {
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mCellSpacingTotal += spacingX;
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}
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}
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if (mCellSpacingTotal > 0) {
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mCellSpacingTotal += spacingX; // add last cell spacing on right
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}
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minTableWidth += mCellSpacingTotal;
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// if the max width available is less than the min content width for fixed table, we're done
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if (!tableIsAutoWidth && (maxWidth < minTableWidth)) {
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return BCW_Wrapup(aReflowState, this, mTableFrame, nsnull);
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}
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// if the max width available is less than the min content width for auto table
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// that had no % cells/cols, we're done
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if (tableIsAutoWidth && (maxWidth < minTableWidth) && (0 == perAdjTableWidth)) {
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return BCW_Wrapup(aReflowState, this, mTableFrame, nsnull);
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}
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// the following are of size NUM_WIDTHS, but only MIN_CON, DES_CON, FIX, FIX_ADJ, PCT
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// are used and they account for colspan ADJusted values
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PRInt32 totalWidths[NUM_WIDTHS]; // sum of col widths of a particular type
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PRInt32 totalCounts[NUM_WIDTHS]; // num of cols of a particular type
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PRInt32 dupedWidths[NUM_WIDTHS];
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PRInt32 num0Proportional;
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CalculateTotals(totalCounts, totalWidths, dupedWidths, num0Proportional);
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// auto width table's adjusted width needs cell spacing
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if (tableIsAutoWidth && perAdjTableWidth > 0) {
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maxWidth = perAdjTableWidth;
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}
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nscoord totalAllocated = totalWidths[MIN_CON] + mCellSpacingTotal;
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// allocate and initialize arrays indicating what col gets set
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PRInt32* allocTypes = new PRInt32[numCols];
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if (!allocTypes) return PR_FALSE;
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for (colX = 0; colX < numCols; colX++) {
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allocTypes[colX] = -1;
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}
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// allocate PCT/PCT_ADJ cols
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if (totalCounts[PCT] > 0) {
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if (totalAllocated + totalWidths[PCT] - dupedWidths[PCT] <= maxWidth) {
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AllocateFully(totalAllocated, allocTypes, PCT);
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//NS_ASSERTION(totalAllocated <= maxWidth, "over allocated");
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}
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else {
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AllocateConstrained(maxWidth - totalAllocated, PCT, PR_FALSE, allocTypes, p2t);
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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}
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// allocate FIX cols
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if ((totalAllocated < maxWidth) && (totalCounts[FIX] > 0)) {
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if (totalAllocated + totalWidths[FIX] - dupedWidths[FIX] <= maxWidth) {
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AllocateFully(totalAllocated, allocTypes, FIX);
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//NS_ASSERTION(totalAllocated <= maxWidth, "over allocated");
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}
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else {
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AllocateConstrained(maxWidth - totalAllocated, FIX, PR_TRUE, allocTypes, p2t);
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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}
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// allocate fixed adjusted cols
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if ((totalAllocated < maxWidth) && (totalCounts[FIX_ADJ] > 0)) {
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if (totalAllocated + totalWidths[FIX_ADJ] - dupedWidths[FIX_ADJ] <= maxWidth) {
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AllocateFully(totalAllocated, allocTypes, FIX_ADJ);
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//NS_ASSERTION(totalAllocated <= maxWidth, "over allocated");
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}
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else {
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AllocateConstrained(maxWidth - totalAllocated, FIX_ADJ, PR_TRUE, allocTypes, p2t);
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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}
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// allocate proportional and auto cols together
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if ((totalAllocated < maxWidth) && (totalCounts[MIN_PRO] + totalCounts[DES_CON] > 0)) {
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if (totalAllocated + totalWidths[MIN_PRO] - dupedWidths[MIN_PRO] +
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totalWidths[DES_CON] - dupedWidths[DES_CON] <= maxWidth) {
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AllocateFully(totalAllocated, allocTypes, DES_CON);
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//NS_ASSERTION(totalAllocated <= maxWidth, "over allocated");
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}
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else {
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AllocateConstrained(maxWidth - totalAllocated, DES_CON, PR_TRUE, allocTypes, p2t);
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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}
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// if this is a nested non auto table and pass1 reflow, we are done
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if ((maxWidth == NS_UNCONSTRAINEDSIZE) && (!tableIsAutoWidth)) {
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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// allocate the rest to auto columns, with some exceptions
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if ( (tableIsAutoWidth && (perAdjTableWidth - totalAllocated > 0)) ||
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(!tableIsAutoWidth && (totalAllocated < maxWidth)) ) {
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// determine how many cols have width either because of a min, fixed, des, or pct value
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PRBool excludePct = (totalCounts[PCT] != numNonZeroWidthCols);
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PRBool excludeFix = (totalCounts[PCT] + totalCounts[FIX] + totalCounts[FIX_ADJ] < numNonZeroWidthCols);
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PRBool excludePro = (totalCounts[DES_CON] > 0);
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PRBool exclude0Pro = (totalCounts[MIN_PRO] != num0Proportional);
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if (tableIsAutoWidth) {
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AllocateUnconstrained(perAdjTableWidth - totalAllocated, allocTypes, excludePct,
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excludeFix, excludePro, exclude0Pro, p2t);
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}
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else {
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AllocateUnconstrained(maxWidth - totalAllocated, allocTypes, excludePct,
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excludeFix, excludePro, exclude0Pro, p2t);
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}
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}
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return BCW_Wrapup(aReflowState, this, mTableFrame, allocTypes);
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}
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nscoord GetColWidth(nsTableColFrame* aColFrame,
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PRInt32 aWidthType)
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{
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switch(aWidthType) {
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case DES_CON:
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return aColFrame->GetDesWidth();
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case FIX:
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case FIX_ADJ:
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return aColFrame->GetWidth(aWidthType);
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case PCT:
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return aColFrame->GetPctWidth();
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default:
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NS_ASSERTION(PR_FALSE, "invalid call");
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return WIDTH_NOT_SET;
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}
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}
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// Allocate aWidthType values to all cols available in aAllocTypes
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void BasicTableLayoutStrategy::AllocateFully(nscoord& aTotalAllocated,
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PRInt32* aAllocTypes,
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PRInt32 aWidthType)
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{
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PRInt32 numCols = mTableFrame->GetColCount();
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for (PRInt32 colX = 0; colX < numCols; colX++) {
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nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
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if (!colFrame) continue;
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if (!CanAllocate(aWidthType, aAllocTypes[colX], colFrame)) {
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continue;
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}
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nscoord oldWidth = mTableFrame->GetColumnWidth(colX);
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nscoord newWidth = GetColWidth(colFrame, aWidthType);
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// proportional and desired widths are handled together
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PRBool haveProWidth = PR_FALSE;
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if (DES_CON == aWidthType) {
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nscoord proWidth = colFrame->GetWidth(MIN_PRO);
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if (proWidth >= 0) {
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haveProWidth = PR_TRUE;
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newWidth = proWidth;
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}
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}
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if (WIDTH_NOT_SET == newWidth) continue;
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if (newWidth > oldWidth) {
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mTableFrame->SetColumnWidth(colX, newWidth);
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aTotalAllocated += newWidth - oldWidth;
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}
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aAllocTypes[colX] = (haveProWidth) ? MIN_PRO : aWidthType;
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}
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}
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// This method is the last allocation method to get called, but just in case
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// code gets added later after, set the allocated cols to some final value.
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#define FINISHED 99
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void BasicTableLayoutStrategy::AllocateUnconstrained(PRInt32 aAllocAmount,
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PRInt32* aAllocTypes,
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PRBool aExcludePct,
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PRBool aExcludeFix,
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PRBool aExcludePro,
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PRBool aExclude0Pro,
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float aPixelToTwips)
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{
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// set up allocTypes to exclude anything but auto cols if possible
|
|
PRInt32 colX;
|
|
PRInt32 numCols = mTableFrame->GetColCount();
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
if (aExcludePct && (PCT == aAllocTypes[colX])) {
|
|
aAllocTypes[colX] = FINISHED;
|
|
}
|
|
else if (aExcludeFix && ((FIX == aAllocTypes[colX]) || (FIX_ADJ == aAllocTypes[colX]))) {
|
|
aAllocTypes[colX] = FINISHED;
|
|
}
|
|
else if (MIN_PRO == aAllocTypes[colX]) {
|
|
if (aExcludePro) {
|
|
aAllocTypes[colX] = FINISHED;
|
|
}
|
|
else {
|
|
if (aExclude0Pro) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
if (colFrame->GetConstraint() == e0ProportionConstraint) {
|
|
aAllocTypes[colX] = FINISHED;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nscoord divisor = 0;
|
|
PRInt32 numColsAllocated = 0;
|
|
PRInt32 totalAllocated = 0;
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
PRBool skipColumn = aExclude0Pro && (e0ProportionConstraint == colFrame->GetConstraint());
|
|
if (FINISHED != aAllocTypes[colX] && !skipColumn ) {
|
|
divisor += mTableFrame->GetColumnWidth(colX);
|
|
numColsAllocated++;
|
|
}
|
|
}
|
|
if (!numColsAllocated) {
|
|
// redistribute the space to all columns and prevent a division by zero
|
|
numColsAllocated = numCols;
|
|
}
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
if (FINISHED != aAllocTypes[colX]) {
|
|
if (aExclude0Pro) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
if (e0ProportionConstraint == colFrame->GetConstraint()) {
|
|
continue;
|
|
}
|
|
}
|
|
nscoord oldWidth = mTableFrame->GetColumnWidth(colX);
|
|
float percent = (divisor == 0)
|
|
? (1.0f / ((float)numColsAllocated))
|
|
: ((float)oldWidth) / ((float)divisor);
|
|
nscoord addition = nsTableFrame::RoundToPixel(NSToCoordRound(((float)aAllocAmount) * percent), aPixelToTwips);
|
|
if (addition > (aAllocAmount - totalAllocated)) {
|
|
addition = nsTableFrame::RoundToPixel(aAllocAmount - totalAllocated, aPixelToTwips);
|
|
mTableFrame->SetColumnWidth(colX, oldWidth + addition);
|
|
break;
|
|
}
|
|
mTableFrame->SetColumnWidth(colX, oldWidth + addition);
|
|
totalAllocated += addition;
|
|
}
|
|
}
|
|
}
|
|
|
|
nscoord GetConstrainedWidth(nsTableColFrame* colFrame,
|
|
PRBool aConsiderPct)
|
|
|
|
{
|
|
nscoord conWidth = WIDTH_NOT_SET;
|
|
if (aConsiderPct) {
|
|
conWidth = colFrame->GetPctWidth();
|
|
}
|
|
if (conWidth <= 0 ) {
|
|
conWidth = colFrame->GetFixWidth();
|
|
}
|
|
return conWidth;
|
|
}
|
|
|
|
#define LIMIT_PCT 0 // retrict allocations to only the pct width cols
|
|
#define LIMIT_FIX 1 // retrict allocations to only the fix width cols
|
|
#define LIMIT_DES 2 // retrict allocations to only the auto width cols
|
|
#define LIMIT_NONE 3 // retrict allocations to only the auto widths unless there are none
|
|
// and then restrict fix or pct.
|
|
|
|
static int RowSortCB(const void *a, const void *b, void *)
|
|
{
|
|
const CellInfo *aa = NS_STATIC_CAST(const CellInfo*,a);
|
|
const CellInfo *bb = NS_STATIC_CAST(const CellInfo*,b);
|
|
|
|
return aa->colSpan - bb->colSpan;
|
|
}
|
|
|
|
/**
|
|
* This function finds all the rows which have a colspan greater than 1,
|
|
* and places those rows into the cellInfo array. This array is then
|
|
* sorted so that the rows with the largest colspan are last.
|
|
* @param TableFrame - The table we are working on
|
|
* @param colX - The column in the table we are considering
|
|
* @param numRows - The number of rows in the table
|
|
* @param cellInfo - The array to store the result in.
|
|
* @return - The number of entries stored in the array
|
|
*/
|
|
static PRInt32
|
|
GetSortedFrames(nsTableFrame *TableFrame,
|
|
PRInt32 colX,
|
|
PRInt32 numRows,
|
|
CellInfo *cellInfo)
|
|
{
|
|
PRInt32 rowX, index = 0;
|
|
for (rowX = 0; rowX < numRows; rowX++) {
|
|
CellInfo *inf = &cellInfo[index];
|
|
PRBool orig;
|
|
inf->cellFrame =
|
|
TableFrame->GetCellInfoAt(rowX, colX, &orig, &inf->colSpan);
|
|
|
|
// If the cell is good we keep it.
|
|
if(inf->cellFrame && orig && 1 != inf->colSpan) {
|
|
index++;
|
|
}
|
|
}
|
|
|
|
if(index>1) {
|
|
NS_QuickSort(cellInfo, index, sizeof(cellInfo[0]), RowSortCB, 0);
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
void
|
|
BasicTableLayoutStrategy::ComputeNonPctColspanWidths(const nsHTMLReflowState& aReflowState,
|
|
PRBool aConsiderPct,
|
|
float aPixelToTwips,
|
|
PRBool* aHasPctCol)
|
|
{
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::eNonPctColspans, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_TRUE);
|
|
#endif
|
|
PRInt32 numCols = mTableFrame->GetColCount();
|
|
PRInt32 numEffCols = mTableFrame->GetEffectiveColCount();
|
|
// zero out prior ADJ values
|
|
|
|
PRInt32 colX;
|
|
for (colX = numCols - 1; colX >= 0; colX--) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
colFrame->SetWidth(MIN_ADJ, WIDTH_NOT_SET);
|
|
colFrame->SetWidth(FIX_ADJ, WIDTH_NOT_SET);
|
|
colFrame->SetWidth(DES_ADJ, WIDTH_NOT_SET);
|
|
}
|
|
|
|
// For each col, consider the cells originating in it with colspans > 1.
|
|
// Adjust the cols that each cell spans if necessary. Iterate backwards
|
|
// so that nested and/or overlaping col spans handle the inner ones first,
|
|
// ensuring more accurated calculations.
|
|
// if more than one colspan originate in one column, resort the access to
|
|
// the rows so that the inner colspans are handled first
|
|
PRInt32 numRows = mTableFrame->GetRowCount();
|
|
|
|
CellInfo* cellInfo = new CellInfo[numRows];
|
|
|
|
if(!cellInfo) {
|
|
return;
|
|
}
|
|
|
|
for (colX = numEffCols - 1; colX >= 0; colX--) { // loop only over effective columns
|
|
PRInt32 spannedRows = GetSortedFrames(mTableFrame, colX, numRows, cellInfo);
|
|
|
|
for (PRInt32 i = 0; i < spannedRows; i++) {
|
|
const CellInfo *inf = &cellInfo[i];
|
|
const nsTableCellFrame* cellFrame = inf->cellFrame;
|
|
|
|
const PRInt32 colSpan = PR_MIN(inf->colSpan, numEffCols - colX);
|
|
// set MIN_ADJ, DES_ADJ, FIX_ADJ
|
|
for (PRInt32 widthX = 0; widthX < NUM_MAJOR_WIDTHS; widthX++) {
|
|
nscoord cellWidth = 0;
|
|
if (MIN_CON == widthX) {
|
|
cellWidth = cellFrame->GetPass1MaxElementWidth();
|
|
}
|
|
else if (DES_CON == widthX) {
|
|
cellWidth = cellFrame->GetMaximumWidth();
|
|
}
|
|
else { // FIX width
|
|
// see if the cell has a style width specified
|
|
const nsStylePosition* cellPosition = cellFrame->GetStylePosition();
|
|
if (eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) {
|
|
// need to add borde and padding into fixed width
|
|
nsMargin borderPadding = nsTableFrame::GetBorderPadding(nsSize(aReflowState.mComputedWidth, 0),
|
|
aPixelToTwips, cellFrame);
|
|
cellWidth = cellPosition->mWidth.GetCoordValue() + borderPadding.left + borderPadding.right;
|
|
cellWidth = PR_MAX(cellWidth, cellFrame->GetPass1MaxElementWidth());
|
|
}
|
|
}
|
|
|
|
if (0 >= cellWidth) continue;
|
|
|
|
// first allocate pct cells up to their value if aConsiderPct, then
|
|
// allocate fixed cells up to their value, then allocate auto cells
|
|
// up to their value, then allocate auto cells proportionally.
|
|
PRInt32 limit = (aConsiderPct) ? LIMIT_PCT : LIMIT_FIX;
|
|
if (MIN_CON != widthX) { // FIX and DES only need to allocate NONE
|
|
limit = LIMIT_NONE;
|
|
}
|
|
while (limit <= LIMIT_NONE) {
|
|
if (ComputeNonPctColspanWidths(widthX, cellFrame, cellWidth, colX, colSpan,
|
|
limit, aPixelToTwips)) {
|
|
break;
|
|
}
|
|
limit++;
|
|
}
|
|
}
|
|
// determine if there is a pct col if we are requested to do so
|
|
if (aHasPctCol && !*aHasPctCol) {
|
|
*aHasPctCol = HasPctValue(cellFrame);
|
|
}
|
|
}
|
|
}
|
|
delete [] cellInfo;
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::eNonPctColspans, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_FALSE);
|
|
#endif
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static char* widths[] = {"MIN", "DES", "FIX"};
|
|
static char* limits[] = {"PCT", "FIX", "DES", "NONE"};
|
|
static PRInt32 dumpCount = 0;
|
|
void DumpColWidths(nsTableFrame& aTableFrame,
|
|
char* aMessage,
|
|
const nsTableCellFrame* aCellFrame,
|
|
PRInt32 aColIndex,
|
|
PRInt32 aWidthType,
|
|
PRInt32 aLimitType)
|
|
{
|
|
PRInt32 rowIndex;
|
|
aCellFrame->GetRowIndex(rowIndex);
|
|
printf ("%s (row,col)=(%d,%d) width=%s limit=%s count=%d\n", aMessage, rowIndex, aColIndex,
|
|
widths[aWidthType], limits[aLimitType], dumpCount++);
|
|
for (PRInt32 i = 0; i < aTableFrame.GetColCount(); i++) {
|
|
printf(" col %d = ", i);
|
|
nsTableColFrame* colFrame = aTableFrame.GetColFrame(i);
|
|
for (PRInt32 j = 0; j < NUM_WIDTHS; j++) {
|
|
printf("%d ", colFrame->GetWidth(j));
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// (aWidthIndex == MIN_CON) is called with:
|
|
// (aLimitType == LIMIT_PCT) to give MIN_ADJ to PCT cols (up to their PCT value)
|
|
// (aLimitType == LIMIT_FIX) to give MIN_ADJ to FIX cols (up to their FIX value)
|
|
// (aLimitType == LIMIT_DES) to give MIN_ADJ to auto cols (up to their preferred value)
|
|
// (aLimitType == LIMIT_NONE) to give MIN_ADJ to auto cols
|
|
// (aWidthIndex == FIX), (aWidthIndex == DES) is called with:
|
|
// (aLimitType == LIMIT_NONE) to give FIX_ADJ to auto cols
|
|
PRBool
|
|
BasicTableLayoutStrategy::ComputeNonPctColspanWidths(PRInt32 aWidthIndex,
|
|
const nsTableCellFrame* aCellFrame,
|
|
nscoord aCellWidth,
|
|
PRInt32 aColIndex,
|
|
PRInt32 aColSpan,
|
|
PRInt32& aLimitType,
|
|
float aPixelToTwips)
|
|
{
|
|
#ifdef DEBUG_TABLE_STRATEGY
|
|
DumpColWidths(*mTableFrame, "enter ComputeNonPctColspanWidths", aCellFrame, aColIndex, aWidthIndex, aLimitType);
|
|
#endif
|
|
PRBool result = PR_TRUE;
|
|
|
|
nscoord spanCellSpacing = 0; // total cell spacing cells being spanned
|
|
nscoord minTotal = 0; // the sum of min widths of spanned cells.
|
|
nscoord autoMinTotal = 0; // the sum of min widths of spanned auto cells.
|
|
nscoord fixMinTotal = 0; // the sum of min widths of spanned fix cells.
|
|
nscoord pctMinTotal = 0; // the sum of min widths of spanned pct cells.
|
|
nscoord pctTotal = 0; // the sum of pct widths of spanned cells.
|
|
nscoord fixTotal = 0; // the sum of fix widths of spanned cells
|
|
nscoord autoDesTotal = 0; // the sum of desired widths of spanned cells which are auto
|
|
nscoord pctLimitTotal = 0; // the sum of pct widths not exceeding aCellWidth
|
|
nscoord fixLimitTotal = 0; // the sum of fix widths not exceeding aCellWidth
|
|
nscoord desLimitTotal = 0; // the sum of des widths not exceeding aCellWidth
|
|
PRInt32 numAutoCols = 0;
|
|
|
|
nscoord spacingX = mTableFrame->GetCellSpacingX();
|
|
PRInt32 spanX;
|
|
// accumulate the various divisors to be used later
|
|
for (spanX = 0; spanX < aColSpan; spanX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(aColIndex + spanX);
|
|
if (!colFrame) continue;
|
|
nscoord minWidth = PR_MAX(colFrame->GetMinWidth(), 0);
|
|
nscoord pctWidth = PR_MAX(colFrame->GetPctWidth(), 0);
|
|
nscoord fixWidth = PR_MAX(colFrame->GetFixWidth(), 0);
|
|
nscoord desWidth = PR_MAX(colFrame->GetDesWidth(), minWidth);
|
|
|
|
minTotal += minWidth;
|
|
|
|
if (pctWidth > 0) {
|
|
pctTotal += pctWidth;
|
|
pctMinTotal += minWidth;
|
|
}
|
|
else if (fixWidth > 0) {
|
|
fixTotal += fixWidth;
|
|
fixMinTotal += minWidth;
|
|
}
|
|
if (colFrame->GetWidth(PCT) + colFrame->GetWidth(FIX) <= 0) {
|
|
autoDesTotal += desWidth;
|
|
autoMinTotal += minWidth;
|
|
numAutoCols++;
|
|
}
|
|
if ((spanX > 0) && (mTableFrame->GetNumCellsOriginatingInCol(aColIndex + spanX) > 0)) {
|
|
spanCellSpacing += spacingX;
|
|
}
|
|
}
|
|
nscoord availWidth = aCellWidth - spanCellSpacing;
|
|
if (MIN_CON == aWidthIndex) {
|
|
// MIN widths (unlike the others) are added to existing values, so subtract out the min total
|
|
availWidth -= minTotal;
|
|
|
|
pctLimitTotal = ((pctTotal - pctMinTotal) < availWidth) ? pctTotal - pctMinTotal : availWidth;
|
|
fixLimitTotal = ((fixTotal - fixMinTotal) < availWidth) ? fixTotal - fixMinTotal : availWidth;
|
|
desLimitTotal = ((autoDesTotal - autoMinTotal) < availWidth) ? autoDesTotal - autoMinTotal : availWidth;
|
|
}
|
|
else { // FIX or DES_CON with LIMIT_NONE
|
|
if (FIX == aWidthIndex) {
|
|
if (autoDesTotal > 0) {
|
|
availWidth -= pctTotal + fixTotal;
|
|
}
|
|
else if (fixTotal > 0) {
|
|
availWidth -= pctTotal;
|
|
}
|
|
}
|
|
else if (DES_CON == aWidthIndex) {
|
|
availWidth -= pctTotal + fixTotal;
|
|
}
|
|
}
|
|
|
|
// Below are some optimizations which can skip steps.
|
|
if (LIMIT_PCT == aLimitType) {
|
|
NS_ASSERTION(MIN_CON == aWidthIndex, "invalid call to ComputeNonPctColspanWidths");
|
|
// if there are no pct cols, limit fix cols
|
|
if (0 == pctTotal) {
|
|
aLimitType = LIMIT_FIX;
|
|
}
|
|
}
|
|
if (LIMIT_FIX == aLimitType) {
|
|
NS_ASSERTION(MIN_CON == aWidthIndex, "invalid call to ComputeNonPctColspanWidths");
|
|
// if there are no fix cols, limit des
|
|
if (0 == fixTotal) {
|
|
aLimitType = LIMIT_DES;
|
|
}
|
|
}
|
|
if (LIMIT_DES == aLimitType) {
|
|
NS_ASSERTION(MIN_CON == aWidthIndex, "invalid call to ComputeNonPctColspanWidths");
|
|
// if there are no auto cols, limit none
|
|
if (0 == autoDesTotal) {
|
|
aLimitType = LIMIT_NONE;
|
|
}
|
|
}
|
|
|
|
// there are some cases where allocating up to aCellWidth will not be satisfied
|
|
switch (aLimitType) {
|
|
case LIMIT_PCT:
|
|
if (pctLimitTotal < availWidth) {
|
|
// the pct cols won't satisfy the request alone
|
|
availWidth = pctLimitTotal;
|
|
result = PR_FALSE;
|
|
}
|
|
break;
|
|
case LIMIT_FIX:
|
|
if (fixLimitTotal < availWidth) {
|
|
// the fix cols won't satisfy the request alone
|
|
availWidth = fixLimitTotal;
|
|
result = PR_FALSE;
|
|
}
|
|
break;
|
|
case LIMIT_DES:
|
|
if (desLimitTotal < availWidth) {
|
|
// the auto cols won't satisfy the request alone
|
|
availWidth = desLimitTotal;
|
|
result = PR_FALSE;
|
|
}
|
|
break;
|
|
default: // LIMIT_NONE
|
|
break;
|
|
}
|
|
|
|
if (availWidth > 0) {
|
|
nscoord usedWidth = 0;
|
|
// get the correct numerator in a similar fashion to getting the divisor
|
|
for (spanX = 0; spanX < aColSpan; spanX++) {
|
|
if (usedWidth >= availWidth) break;
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(aColIndex + spanX);
|
|
if (!colFrame) continue;
|
|
nscoord minWidth = colFrame->GetMinWidth();
|
|
nscoord pctWidth = PR_MAX(colFrame->GetPctWidth(), 0);
|
|
nscoord fixWidth = PR_MAX(colFrame->GetFixWidth(), 0);
|
|
nscoord desWidth = PR_MAX(colFrame->GetDesWidth(), minWidth);
|
|
|
|
nscoord colWidth = PR_MAX(colFrame->GetWidth(aWidthIndex),
|
|
colFrame->GetWidth(aWidthIndex + NUM_MAJOR_WIDTHS));
|
|
colWidth = PR_MAX(colWidth, minWidth);
|
|
|
|
nscoord numeratorPct = 0;
|
|
nscoord numeratorFix = 0;
|
|
nscoord numeratorAutoDes = 0;
|
|
|
|
if (pctWidth > 0) {
|
|
numeratorPct = pctWidth;
|
|
}
|
|
else if (fixWidth > 0) {
|
|
numeratorFix = fixWidth;
|
|
}
|
|
if (colFrame->GetWidth(PCT) + colFrame->GetWidth(FIX) <= 0) {
|
|
numeratorAutoDes = desWidth;
|
|
}
|
|
|
|
nscoord divisor = 0;
|
|
nscoord numerator = 0;
|
|
|
|
// let pct cols reach their target
|
|
if (LIMIT_PCT == aLimitType) {
|
|
if (pctLimitTotal > 0) {
|
|
divisor = pctTotal - pctMinTotal;
|
|
numerator = PR_MAX(numeratorPct - minWidth, 0);
|
|
}
|
|
}
|
|
// let fix cols reach their target
|
|
else if (LIMIT_FIX == aLimitType) {
|
|
if (fixLimitTotal > 0) {
|
|
divisor = fixTotal - fixMinTotal;
|
|
numerator = PR_MAX(numeratorFix - minWidth, 0);
|
|
}
|
|
}
|
|
// let auto cols reach their target
|
|
else if (LIMIT_DES == aLimitType) {
|
|
if (desLimitTotal > 0) {
|
|
if (autoDesTotal > 0) { // there were auto cols
|
|
divisor = autoDesTotal - autoMinTotal;
|
|
numerator = PR_MAX(numeratorAutoDes - minWidth, 0);
|
|
}
|
|
else if (fixTotal > 0) { // there were fix cols but no auto
|
|
divisor = fixTotal - fixMinTotal;
|
|
numerator = PR_MAX(numeratorFix - minWidth, 0);
|
|
}
|
|
else if (pctTotal > 0) { // there were only pct cols
|
|
divisor = pctTotal - pctMinTotal;
|
|
numerator = PR_MAX(numeratorPct - minWidth, 0);
|
|
}
|
|
else continue;
|
|
}
|
|
}
|
|
else if (LIMIT_NONE == aLimitType) {
|
|
if ((MIN_CON == aWidthIndex) && (0 == minTotal)) {
|
|
// divide evenly among the spanned cols
|
|
divisor = aColSpan;
|
|
numerator = 1;
|
|
}
|
|
else {
|
|
if (autoDesTotal > 0) { // there were auto cols
|
|
divisor = autoDesTotal;
|
|
numerator = numeratorAutoDes;
|
|
}
|
|
else if (fixTotal > 0) { // there were fix cols but no auto
|
|
divisor = fixTotal;
|
|
numerator = numeratorFix;
|
|
}
|
|
else if (pctTotal > 0) { // there were only pct cols
|
|
divisor = pctTotal;
|
|
numerator = numeratorPct;
|
|
}
|
|
else continue;
|
|
|
|
}
|
|
}
|
|
// calculate the adj col width
|
|
nscoord newColAdjWidth = (0 >= divisor)
|
|
? NSToCoordRound( ((float)availWidth) / ((float)aColSpan) )
|
|
: NSToCoordRound( (((float)numerator) / ((float)divisor)) * availWidth);
|
|
newColAdjWidth = nsTableFrame::RoundToPixel(newColAdjWidth, aPixelToTwips);
|
|
// don't let the new allocation exceed the avail total
|
|
newColAdjWidth = PR_MIN(newColAdjWidth, availWidth - usedWidth);
|
|
// put the remainder of the avail total in the last spanned col
|
|
if (spanX == aColSpan - 1) {
|
|
newColAdjWidth = availWidth - usedWidth;
|
|
}
|
|
usedWidth += newColAdjWidth;
|
|
// MIN_CON gets added to what is there, the others don't
|
|
if (MIN_CON == aWidthIndex) {
|
|
newColAdjWidth += colWidth;
|
|
}
|
|
if (newColAdjWidth > colWidth) {
|
|
if (FIX == aWidthIndex) {
|
|
// a colspan cannot fix a column below what a cell desires on its own
|
|
nscoord desCon = colFrame->GetWidth(DES_CON); // do not consider DES_ADJ
|
|
if (desCon > newColAdjWidth) {
|
|
newColAdjWidth = desCon;
|
|
}
|
|
}
|
|
colFrame->SetWidth(aWidthIndex + NUM_MAJOR_WIDTHS, newColAdjWidth);
|
|
}
|
|
else {
|
|
if((newColAdjWidth > 0) && (FIX == aWidthIndex)) {
|
|
if(colFrame->GetWidth(FIX) < 0) {
|
|
nscoord desCon = colFrame->GetWidth(DES_CON);
|
|
if (desCon > newColAdjWidth) {
|
|
newColAdjWidth = desCon;
|
|
}
|
|
}
|
|
if(colFrame->GetWidth(FIX_ADJ) < newColAdjWidth) {
|
|
colFrame->SetWidth(FIX_ADJ, PR_MAX(colWidth,newColAdjWidth));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#ifdef DEBUG_TABLE_STRATEGY
|
|
DumpColWidths(*mTableFrame, "exit ComputeNonPctColspanWidths", aCellFrame, aColIndex, aWidthIndex, aLimitType);
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
|
|
// XXX percent left and right padding are not figured in the calculations
|
|
// The table frame needs to be used as the percent base because the reflow
|
|
// state may have an unconstrained width. There should probably be a frame
|
|
// state bit indicating that horizontal padding is percentage based.
|
|
|
|
// Determine min, desired, fixed, and proportional sizes for the cols and
|
|
// and calculate min/max table width. Return true if there is at least one pct cell or col
|
|
PRBool
|
|
BasicTableLayoutStrategy::AssignNonPctColumnWidths(nscoord aMaxWidth,
|
|
const nsHTMLReflowState& aReflowState)
|
|
{
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::eNonPctCols, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_TRUE);
|
|
#endif
|
|
#ifdef DEBUG_TABLE_STRATEGY
|
|
printf("AssignNonPctColWidths en max=%d count=%d \n", aMaxWidth, gsDebugCount++); mTableFrame->Dump(PR_FALSE, PR_TRUE, PR_FALSE);
|
|
#endif
|
|
PRInt32 numRows = mTableFrame->GetRowCount();
|
|
PRInt32 numCols = mTableFrame->GetColCount();
|
|
PRInt32 numEffCols = mTableFrame->GetEffectiveColCount();
|
|
nscoord spacingX = mTableFrame->GetCellSpacingX();
|
|
PRInt32 colX, rowX;
|
|
mCellSpacingTotal = 0;
|
|
PRBool hasPctCol = PR_FALSE; // return value
|
|
float pixelToTwips = mTableFrame->GetPresContext()->ScaledPixelsToTwips();
|
|
|
|
PRInt32 rawPropTotal = -1; // total of numbers of the type 1*, 2*, etc
|
|
PRInt32 numColsForColsAttr = 0; // Nav Quirks cols attribute for equal width cols
|
|
if (NS_STYLE_TABLE_COLS_NONE != mCols) {
|
|
numColsForColsAttr = (NS_STYLE_TABLE_COLS_ALL == mCols) ? numCols : mCols;
|
|
}
|
|
|
|
// For every column, determine its min and desired width based on cell style
|
|
// base on cells which do not span cols. Also, determine mCellSpacingTotal
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nscoord minWidth = 0;
|
|
nscoord desWidth = 0;
|
|
nscoord fixWidth = WIDTH_NOT_SET;
|
|
|
|
// Get column frame and reset it
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
NS_ASSERTION(nsnull != colFrame, "bad col frame");
|
|
colFrame->ResetSizingInfo();
|
|
|
|
if (mTableFrame->GetNumCellsOriginatingInCol(colX) > 0) {
|
|
mCellSpacingTotal += spacingX;
|
|
}
|
|
|
|
// Scan the cells in the col that have colspan = 1 and find the maximum
|
|
// min, desired, and fixed cells.
|
|
nsTableCellFrame* fixContributor = nsnull;
|
|
nsTableCellFrame* desContributor = nsnull;
|
|
if (colX < numEffCols) {
|
|
for (rowX = 0; rowX < numRows; rowX++) {
|
|
PRBool originates;
|
|
PRInt32 colSpan;
|
|
nsTableCellFrame* cellFrame = mTableFrame->GetCellInfoAt(rowX, colX, &originates, &colSpan);
|
|
// skip cells that don't originate at (rowX, colX); colspans are handled in the
|
|
// next pass, row spans don't need to be handled
|
|
if (!cellFrame || !originates || (colSpan > 1)) {
|
|
continue;
|
|
}
|
|
// these values include borders and padding
|
|
minWidth = PR_MAX(minWidth, cellFrame->GetPass1MaxElementWidth());
|
|
nscoord cellDesWidth = cellFrame->GetMaximumWidth();
|
|
if (cellDesWidth > desWidth) {
|
|
desContributor = cellFrame;
|
|
desWidth = cellDesWidth;
|
|
}
|
|
// see if the cell has a style width specified
|
|
const nsStylePosition* cellPosition = cellFrame->GetStylePosition();
|
|
if (eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) {
|
|
nscoord coordValue = cellPosition->mWidth.GetCoordValue();
|
|
if (coordValue > 0) { // ignore if width == 0
|
|
// need to add border and padding into fixed width
|
|
nsSize percentBase(aReflowState.mComputedWidth, 0);
|
|
nsMargin borderPadding = nsTableFrame::GetBorderPadding(percentBase, pixelToTwips, cellFrame);
|
|
nscoord newFixWidth = coordValue + borderPadding.left + borderPadding.right;
|
|
// 2nd part of condition is Nav/IE Quirk like below
|
|
if ((newFixWidth > fixWidth) || ((newFixWidth == fixWidth) && (desContributor == cellFrame))) {
|
|
fixWidth = newFixWidth;
|
|
fixContributor = cellFrame;
|
|
}
|
|
}
|
|
}
|
|
if (!hasPctCol && HasPctValue(cellFrame)) { // see if there is a pct cell
|
|
hasPctCol = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
// Nav/IE Quirk like above
|
|
if (fixWidth > 0) {
|
|
if (mIsNavQuirksMode && (desWidth > fixWidth) && (fixContributor != desContributor)) {
|
|
fixWidth = WIDTH_NOT_SET;
|
|
fixContributor = nsnull;
|
|
}
|
|
}
|
|
desWidth = PR_MAX(desWidth, minWidth);
|
|
|
|
// cache the computed column info
|
|
colFrame->SetWidth(MIN_CON, minWidth);
|
|
colFrame->SetWidth(DES_CON, desWidth);
|
|
if (fixWidth > 0) {
|
|
colFrame->SetWidth(FIX, fixWidth);
|
|
}
|
|
|
|
nsStyleCoord colStyleWidth = colFrame->GetStyleWidth();
|
|
// determine if there is a proportional column either from html4
|
|
// proportional width on a col or Nav Quirks cols attr
|
|
if (fixWidth <= 0) {
|
|
nscoord proportion = WIDTH_NOT_SET;
|
|
if (eStyleUnit_Proportional == colStyleWidth.GetUnit()) {
|
|
proportion = colStyleWidth.GetIntValue();
|
|
}
|
|
else if (colX < numColsForColsAttr) {
|
|
proportion = 1;
|
|
if ((eStyleUnit_Percent == colStyleWidth.GetUnit()) &&
|
|
(colStyleWidth.GetPercentValue() > 0.0f)) {
|
|
proportion = WIDTH_NOT_SET;
|
|
}
|
|
}
|
|
if (proportion >= 0) {
|
|
rawPropTotal = PR_MAX(rawPropTotal, 0); // it was initialized to -1
|
|
colFrame->SetWidth(MIN_PRO, proportion);
|
|
nsColConstraint colConstraint = (0 == proportion)
|
|
? e0ProportionConstraint : eProportionConstraint;
|
|
rawPropTotal += proportion;
|
|
colFrame->SetConstraint(colConstraint);
|
|
}
|
|
}
|
|
if (!hasPctCol) { // see if there is a pct col
|
|
if (eStyleUnit_Percent == colStyleWidth.GetUnit()) {
|
|
float percent = colStyleWidth.GetPercentValue();
|
|
if (percent > 0.0f) {
|
|
hasPctCol = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (mCellSpacingTotal > 0) {
|
|
mCellSpacingTotal += spacingX; // add last cell spacing on right
|
|
}
|
|
//set the table col fixed width if present
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord fixColWidth = colFrame->GetWidth(FIX);
|
|
// use the style width of a col only if the col hasn't gotten a fixed width from any cell
|
|
if (fixColWidth <= 0) {
|
|
nsStyleCoord colStyleWidth = colFrame->GetStyleWidth();
|
|
if (eStyleUnit_Coord == colStyleWidth.GetUnit()) {
|
|
fixColWidth = colStyleWidth.GetCoordValue();
|
|
if (fixColWidth > 0) {
|
|
colFrame->SetWidth(FIX, fixColWidth);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
PRBool* pctRequest = (hasPctCol) ? nsnull : &hasPctCol;
|
|
ComputeNonPctColspanWidths(aReflowState, PR_FALSE, pixelToTwips, pctRequest);
|
|
// figure the proportional widths for porportional cols
|
|
if (rawPropTotal > 0) {
|
|
// find the largest combined prop size considering each prop col and
|
|
// its desired size
|
|
nscoord maxPropTotal = 0;
|
|
for (colX = 0; colX < numEffCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord rawProp = colFrame->GetWidth(MIN_PRO);
|
|
if (rawProp > 0) {
|
|
nscoord desWidth = colFrame->GetDesWidth();
|
|
nscoord propTotal = NSToCoordRound( ((float)desWidth) * ((float)rawPropTotal) / (float)rawProp );
|
|
propTotal = nsTableFrame::RoundToPixel(propTotal, pixelToTwips);
|
|
maxPropTotal = PR_MAX(maxPropTotal, propTotal);
|
|
}
|
|
}
|
|
// set MIN_PRO widths based on the maxPropTotal
|
|
for (colX = 0; colX < numEffCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord rawProp = colFrame->GetWidth(MIN_PRO);
|
|
if (0 == rawProp) {
|
|
// a 0* col gets only the min width
|
|
colFrame->SetWidth(MIN_PRO, colFrame->GetMinWidth());
|
|
}
|
|
else if ((rawProp > 0) && (rawPropTotal > 0)) {
|
|
nscoord propWidth = NSToCoordRound( ((float)maxPropTotal) * ((float)rawProp) / (float)rawPropTotal ) ;
|
|
propWidth = nsTableFrame::RoundToPixel(propWidth, pixelToTwips);
|
|
colFrame->SetWidth(MIN_PRO, PR_MAX(propWidth, colFrame->GetMinWidth()));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set the table col width for each col to the content min.
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord minWidth = colFrame->GetMinWidth();
|
|
mTableFrame->SetColumnWidth(colX, minWidth);
|
|
}
|
|
|
|
#ifdef DEBUG_TABLE_STRATEGY
|
|
printf("AssignNonPctColWidths ex\n"); mTableFrame->Dump(PR_FALSE, PR_TRUE, PR_FALSE);
|
|
#endif
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::eNonPctCols, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_FALSE);
|
|
#endif
|
|
return hasPctCol;
|
|
}
|
|
|
|
void
|
|
BasicTableLayoutStrategy::ReduceOverSpecifiedPctCols(nscoord aExcess)
|
|
{
|
|
nscoord numCols = mTableFrame->GetColCount();
|
|
for (PRInt32 colX = numCols - 1; (colX >= 0) && (aExcess > 0); colX--) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord pctWidth = colFrame->GetWidth(PCT);
|
|
nscoord reduction = 0;
|
|
if (pctWidth > 0) {
|
|
reduction = (aExcess > pctWidth) ? pctWidth : aExcess;
|
|
nscoord newPctWidth = (reduction == pctWidth) ? WIDTH_NOT_SET : pctWidth - reduction;
|
|
colFrame->SetWidth(PCT, PR_MAX(newPctWidth, colFrame->GetMinWidth()));
|
|
}
|
|
else {
|
|
nscoord pctAdjWidth = colFrame->GetWidth(PCT_ADJ);
|
|
if (pctAdjWidth > 0) {
|
|
reduction = (aExcess > pctAdjWidth) ? pctAdjWidth : aExcess;
|
|
nscoord newPctAdjWidth = (reduction == pctAdjWidth) ? WIDTH_NOT_SET : pctAdjWidth - reduction;
|
|
colFrame->SetWidth(PCT_ADJ, PR_MAX(newPctAdjWidth, colFrame->GetMinWidth()));
|
|
}
|
|
}
|
|
aExcess -= reduction;
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nscoord WrapupAssignPctColumnWidths(nsTableFrame* aTableFrame,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nscoord aValue)
|
|
{
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::ePctCols, *aTableFrame, (nsHTMLReflowState&)aReflowState, PR_FALSE);
|
|
return aValue;
|
|
}
|
|
#else
|
|
inline nscoord WrapupAssignPctColumnWidths(nsTableFrame* aTableFrame,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nscoord aValue)
|
|
{
|
|
return aValue;
|
|
}
|
|
#endif
|
|
|
|
nscoord
|
|
BasicTableLayoutStrategy::CalcPctAdjTableWidth(const nsHTMLReflowState& aReflowState,
|
|
nscoord aAvailWidthIn)
|
|
{
|
|
NS_ASSERTION(mTableFrame->IsAutoWidth() && mTableFrame->HasPctCol(), "invalid call");
|
|
|
|
PRInt32 numRows = mTableFrame->GetRowCount();
|
|
PRInt32 numCols = mTableFrame->GetColCount(); // consider cols at end without orig cells
|
|
PRInt32 colX, rowX;
|
|
float pixelToTwips = mTableFrame->GetPresContext()->ScaledPixelsToTwips();
|
|
|
|
// For an auto table, determine the potentially new percent adjusted width based
|
|
// on percent cells/cols. This probably should only be a NavQuirks thing, since
|
|
// a percentage based cell or column on an auto table should force the column to auto
|
|
nscoord basis = 0;
|
|
float* rawPctValues = new float[numCols]; // store the raw pct values, allow for spans past the effective numCols
|
|
if (!rawPctValues) return NS_ERROR_OUT_OF_MEMORY;
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
rawPctValues[colX] = 0.0f;
|
|
}
|
|
|
|
nsMargin borderPadding = mTableFrame->GetContentAreaOffset(&aReflowState);
|
|
nscoord availWidth = aAvailWidthIn;
|
|
if (NS_UNCONSTRAINEDSIZE != availWidth) {
|
|
// adjust the avail width to exclude table border, padding and cell spacing
|
|
availWidth -= borderPadding.left + borderPadding.right + mCellSpacingTotal;
|
|
}
|
|
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord maxColBasis = -1;
|
|
// Scan the cells in the col
|
|
for (rowX = 0; rowX < numRows; rowX++) {
|
|
PRBool originates;
|
|
PRInt32 colSpan;
|
|
nsTableCellFrame* cellFrame = mTableFrame->GetCellInfoAt(rowX, colX, &originates, &colSpan);
|
|
if (!originates) continue; // skip cells that don't originate in the col
|
|
// see if the cell has a style percent width specified
|
|
const nsStylePosition* cellPosition = cellFrame->GetStylePosition();
|
|
if (eStyleUnit_Percent == cellPosition->mWidth.GetUnit()) {
|
|
float percent = cellPosition->mWidth.GetPercentValue();
|
|
if (percent > 0.0f) {
|
|
// calculate the preferred width of the cell based on fix, des, widths of the cols it spans
|
|
nscoord cellDesWidth = 0;
|
|
float spanPct = percent / float(colSpan);
|
|
for (PRInt32 spanX = 0; spanX < colSpan; spanX++) {
|
|
nsTableColFrame* spanFrame = mTableFrame->GetColFrame(colX + spanX);
|
|
if (!spanFrame) continue;
|
|
cellDesWidth += spanFrame->GetWidth(DES_CON); // don't consider DES_ADJ
|
|
// crudely allocate pct values to the spanning cols so that we can check if they exceed 100 pct below
|
|
rawPctValues[colX + spanX] = PR_MAX(rawPctValues[colX + spanX], spanPct);
|
|
}
|
|
// consider the cell's preferred width
|
|
cellDesWidth = PR_MAX(cellDesWidth, cellFrame->GetMaximumWidth());
|
|
nscoord colBasis = nsTableFrame::RoundToPixel(NSToCoordRound((float)cellDesWidth / percent), pixelToTwips);
|
|
maxColBasis = PR_MAX(maxColBasis, colBasis);
|
|
}
|
|
}
|
|
}
|
|
if (-1 == maxColBasis) {
|
|
// see if the col has a style percent width specified
|
|
nsStyleCoord colStyleWidth = colFrame->GetStyleWidth();
|
|
if (eStyleUnit_Percent == colStyleWidth.GetUnit()) {
|
|
float percent = colStyleWidth.GetPercentValue();
|
|
maxColBasis = 0;
|
|
if (percent > 0.0f) {
|
|
rawPctValues[colX] = PR_MAX(rawPctValues[colX], percent);
|
|
nscoord desWidth = colFrame->GetWidth(DES_CON); // don't consider DES_ADJ
|
|
maxColBasis = nsTableFrame::RoundToPixel(NSToCoordRound((float)desWidth / percent), pixelToTwips);
|
|
}
|
|
}
|
|
}
|
|
basis = PR_MAX(basis, maxColBasis);
|
|
} // end for (colX ..
|
|
|
|
float perTotal = 0.0f; // total of percentage constrained cols and/or cells in cols
|
|
PRInt32 numPerCols = 0; // number of colums that have percentage constraints
|
|
nscoord fixDesTotal = 0; // total of fix or des widths of cols
|
|
nscoord fixDesTotalNoPct = 0; // total of fix or des widths of cols without pct
|
|
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord fixWidth = colFrame->GetFixWidth();
|
|
nscoord fixDesWidth = (fixWidth > 0) ? fixWidth : colFrame->GetDesWidth();
|
|
fixDesTotal += fixDesWidth;
|
|
if (rawPctValues[colX] + perTotal > 1.0f) {
|
|
rawPctValues[colX] = PR_MAX(1.0f - perTotal, 0.0f);
|
|
}
|
|
if (rawPctValues[colX] > 0.0f) {
|
|
numPerCols++;
|
|
perTotal += rawPctValues[colX];
|
|
}
|
|
else {
|
|
fixDesTotalNoPct += fixDesWidth;
|
|
}
|
|
}
|
|
delete [] rawPctValues; // destroy the raw pct values
|
|
// If there are no pct cells or cols, there is nothing to do.
|
|
if ((0 == numPerCols) || (0.0f == perTotal)) {
|
|
NS_ASSERTION(PR_FALSE, "invalid call");
|
|
return basis;
|
|
}
|
|
// If there is only one col and it is % based, it won't affect anything
|
|
if ((1 == numCols) && (numCols == numPerCols)) {
|
|
return basis + borderPadding.left + borderPadding.right + mCellSpacingTotal;
|
|
}
|
|
|
|
// compute a basis considering total percentages and the desired width of everything else
|
|
if ((perTotal > 0.0f) && (perTotal < 1.0f)) {
|
|
nscoord otherBasis = nsTableFrame::RoundToPixel(NSToCoordRound((float)fixDesTotalNoPct / (1.0f - perTotal)), pixelToTwips);
|
|
basis = PR_MAX(basis, otherBasis);
|
|
}
|
|
else if ((fixDesTotalNoPct > 0) && (NS_UNCONSTRAINEDSIZE != availWidth)) { // make the basis as big as possible
|
|
basis = availWidth; // the 100% cols force as big a width as possible
|
|
}
|
|
basis = PR_MAX(basis, fixDesTotal);
|
|
basis = PR_MIN(basis, availWidth); // don't exceed the max we were given
|
|
|
|
if (NS_UNCONSTRAINEDSIZE != availWidth) {
|
|
// add back the table border, padding and cell spacing
|
|
basis += borderPadding.left + borderPadding.right + mCellSpacingTotal;
|
|
}
|
|
|
|
return basis;
|
|
}
|
|
|
|
// Determine percentage col widths for each col frame
|
|
nscoord
|
|
BasicTableLayoutStrategy::AssignPctColumnWidths(const nsHTMLReflowState& aReflowState,
|
|
nscoord aAvailWidth,
|
|
PRBool aTableIsAutoWidth,
|
|
float aPixelToTwips)
|
|
{
|
|
#ifdef DEBUG_TABLE_REFLOW_TIMING
|
|
nsTableFrame::DebugTimeMethod(nsTableFrame::ePctCols, *mTableFrame, (nsHTMLReflowState&)aReflowState, PR_TRUE);
|
|
#endif
|
|
mTableFrame->SetHasCellSpanningPctCol(PR_FALSE); // this gets refigured below
|
|
PRInt32 numRows = mTableFrame->GetRowCount();
|
|
PRInt32 numCols = mTableFrame->GetColCount(); // consider cols at end without orig cells
|
|
PRInt32 numEffCols = mTableFrame->GetEffectiveColCount();
|
|
nscoord spacingX = mTableFrame->GetCellSpacingX();
|
|
PRInt32 colX, rowX;
|
|
|
|
NS_ASSERTION(NS_UNCONSTRAINEDSIZE != aAvailWidth, "AssignPctColumnWidths has unconstrained avail width");
|
|
// For an auto table, determine the potentially new percent adjusted width based
|
|
// on percent cells/cols. This probably should only be a NavQuirks thing, since
|
|
// a percentage based cell or column on an auto table should force the column to auto
|
|
nscoord basis = (aTableIsAutoWidth)
|
|
? CalcPctAdjTableWidth(aReflowState, aAvailWidth)
|
|
: aAvailWidth;
|
|
|
|
// adjust the basis to exclude table border, padding and cell spacing
|
|
nsMargin borderPadding = mTableFrame->GetContentAreaOffset(&aReflowState);
|
|
basis -= borderPadding.left + borderPadding.right + mCellSpacingTotal;
|
|
|
|
nscoord colPctTotal = 0;
|
|
|
|
struct nsSpannedEle {
|
|
nsSpannedEle *next, *prev;
|
|
PRInt32 col, colSpan;
|
|
nsTableCellFrame *cellFrame;
|
|
};
|
|
|
|
nsSpannedEle *spanList = 0;
|
|
nsSpannedEle *spanTail = 0;
|
|
PLArenaPool spanArena;
|
|
|
|
PL_INIT_ARENA_POOL(&spanArena, "AssignPctColumnWidths", 512);
|
|
// Determine the percentage contribution for cols and for cells with colspan = 1
|
|
// Iterate backwards, similarly to the reasoning in AssignNonPctColumnWidths
|
|
for (colX = numCols - 1; colX >= 0; colX--) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord maxColPctWidth = WIDTH_NOT_SET;
|
|
float maxColPct = 0.0f;
|
|
|
|
nsTableCellFrame* percentContributor = nsnull;
|
|
// Scan the cells in the col that have colspan = 1; assign PER widths
|
|
for (rowX = 0; rowX < numRows; rowX++) {
|
|
PRBool originates;
|
|
PRInt32 colSpan;
|
|
nsTableCellFrame* cellFrame = mTableFrame->GetCellInfoAt(rowX, colX, &originates, &colSpan);
|
|
// skip cells that don't originate at (rowX, colX)
|
|
if (!cellFrame || !originates) {
|
|
continue;
|
|
}
|
|
|
|
// colspans are handled in the next pass, but we record them here so we dont have to
|
|
// search for the again. row spans do not need to be handled.
|
|
if(colSpan>1) {
|
|
nsSpannedEle *spanned;
|
|
ARENA_ALLOCATE(spanned, &spanArena, 1, nsSpannedEle);
|
|
if(spanned) {
|
|
spanned->col = colX;
|
|
spanned->colSpan = colSpan;
|
|
spanned->cellFrame = cellFrame;
|
|
spanned->next = spanList;
|
|
spanned->prev = nsnull;
|
|
if(spanList) {
|
|
spanList->prev = spanned;
|
|
} else {
|
|
spanTail = spanned;
|
|
}
|
|
spanList = spanned;
|
|
}
|
|
continue;
|
|
}
|
|
// see if the cell has a style percent width specified
|
|
const nsStylePosition* cellPosition = cellFrame->GetStylePosition();
|
|
if (eStyleUnit_Percent == cellPosition->mWidth.GetUnit()) {
|
|
float percent = cellPosition->mWidth.GetPercentValue();
|
|
if (percent > maxColPct) {
|
|
maxColPct = percent;
|
|
maxColPctWidth = nsTableFrame::RoundToPixel(NSToCoordRound( ((float)basis) * maxColPct ), aPixelToTwips);
|
|
percentContributor = cellFrame;
|
|
if (!mIsNavQuirksMode) {
|
|
// need to add border and padding
|
|
nsMargin cellBorderPadding = nsTableFrame::GetBorderPadding(nsSize(basis, 0), aPixelToTwips, cellFrame);
|
|
maxColPctWidth += cellBorderPadding.left + cellBorderPadding.right;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (WIDTH_NOT_SET == maxColPctWidth) {
|
|
// see if the col has a style percent width specified
|
|
nsStyleCoord colStyleWidth = colFrame->GetStyleWidth();
|
|
if (eStyleUnit_Percent == colStyleWidth.GetUnit()) {
|
|
maxColPct = colStyleWidth.GetPercentValue();
|
|
maxColPctWidth = nsTableFrame::RoundToPixel(NSToCoordRound( ((float)basis) * maxColPct ), aPixelToTwips);
|
|
}
|
|
}
|
|
// conflicting pct/fixed widths are recorded. Nav 4.x may be changing the
|
|
// fixed width value if it exceeds the pct value and not recording the pct
|
|
// value. This is not being done and IE5 doesn't do it either.
|
|
if (maxColPctWidth > 0) {
|
|
maxColPctWidth = PR_MAX(maxColPctWidth, colFrame->GetWidth(MIN_CON));
|
|
colFrame->SetWidth(PCT, maxColPctWidth);
|
|
colPctTotal += NSToCoordRound(100.0f * (float)maxColPct);
|
|
}
|
|
}
|
|
|
|
// if the percent total went over 100%, adjustments need to be made to right most cols
|
|
if (colPctTotal > 100) {
|
|
ReduceOverSpecifiedPctCols(nsTableFrame::RoundToPixel(NSToCoordRound(((float)(colPctTotal - 100)) * 0.01f * (float)basis), aPixelToTwips));
|
|
colPctTotal = 100;
|
|
}
|
|
|
|
// check to see if a cell spans a percentage col. This will cause the MIN_ADJ,
|
|
// FIX_ADJ, and DES_ADJ values to be recomputed
|
|
PRBool done = PR_FALSE;
|
|
nsSpannedEle *spannedCell;
|
|
for(spannedCell=spanList; !done && spannedCell; spannedCell=spannedCell->next)
|
|
{
|
|
colX = spannedCell->col;
|
|
PRInt32 colSpan = spannedCell->colSpan;
|
|
// determine if the cell spans cols which have a pct value
|
|
for (PRInt32 spanX = 0; spanX < colSpan; spanX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX + spanX);
|
|
if (!colFrame) continue;
|
|
if (colFrame->GetWidth(PCT) > 0) {
|
|
mTableFrame->SetHasCellSpanningPctCol(PR_TRUE);
|
|
// recompute the MIN_ADJ, FIX_ADJ, and DES_ADJ values
|
|
ComputeNonPctColspanWidths(aReflowState, PR_TRUE, aPixelToTwips, nsnull);
|
|
done = PR_TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// For each col, consider the cells originating in it with colspans > 1.
|
|
// Adjust the cols that each cell spans if necessary.
|
|
// if more than one colspan originate in one column, resort the access to
|
|
// the rows so that the inner colspans are handled first
|
|
|
|
CellInfo* cellInfo = nsnull;
|
|
|
|
if(spanTail)
|
|
ARENA_ALLOCATE(cellInfo, &spanArena, numRows, CellInfo);
|
|
|
|
if(cellInfo) for(spannedCell=spanTail; spannedCell;) {
|
|
PRInt32 spannedRows = 0;
|
|
colX = spannedCell->col;
|
|
do {
|
|
cellInfo[spannedRows].cellFrame = spannedCell->cellFrame;
|
|
cellInfo[spannedRows].colSpan = spannedCell->colSpan;
|
|
++spannedRows;
|
|
} while((spannedCell=spannedCell->prev) && (spannedCell->col==colX));
|
|
if(spannedRows>1) {
|
|
NS_QuickSort(cellInfo, spannedRows, sizeof(cellInfo[0]), RowSortCB, 0);
|
|
}
|
|
|
|
for (PRInt32 i = 0; i < spannedRows; i++) {
|
|
const CellInfo *inf = &cellInfo[i];
|
|
const nsTableCellFrame* cellFrame = inf->cellFrame;
|
|
|
|
const PRInt32 colSpan = PR_MIN(inf->colSpan, numEffCols - colX);
|
|
nscoord cellPctWidth = WIDTH_NOT_SET;
|
|
// see if the cell has a style percentage width specified
|
|
const nsStylePosition* cellPosition = cellFrame->GetStylePosition();
|
|
float cellPct = 0.0f;
|
|
if (eStyleUnit_Percent == cellPosition->mWidth.GetUnit()) {
|
|
cellPct = cellPosition->mWidth.GetPercentValue();
|
|
if (colSpan == numEffCols)
|
|
cellPct = 1.0f; // overwrite spurious percent colspan width's - bug 46944
|
|
cellPctWidth = nsTableFrame::RoundToPixel(NSToCoordRound( ((float)basis) * cellPct ), aPixelToTwips);
|
|
if (!mIsNavQuirksMode) {
|
|
// need to add border and padding
|
|
nsMargin cellBorderPadding = nsTableFrame::GetBorderPadding(nsSize(basis, 0), aPixelToTwips, cellFrame);
|
|
cellPctWidth += cellBorderPadding.left + cellBorderPadding.right;
|
|
}
|
|
}
|
|
if (cellPctWidth > 0) {
|
|
nscoord spanCellSpacing = 0;
|
|
nscoord spanTotal = 0;
|
|
nscoord spanTotalNoPctAdj = 0;
|
|
nscoord colPctWidthTotal = 0; // accumulate the PCT width
|
|
nscoord colPctAdjTotal = 0; // accumulate the PCT_ADJ width or the max of PCT_ADJ and PCT width if a
|
|
// PCT width is specified
|
|
PRBool canSkipPctAdj = PR_FALSE;
|
|
// accumulate the spanTotal as the max of MIN, DES, FIX, PCT
|
|
PRInt32 spanX;
|
|
for (spanX = 0; spanX < colSpan; spanX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX + spanX);
|
|
if (!colFrame) continue;
|
|
nscoord colPctWidth = colFrame->GetWidth(PCT);
|
|
if (colPctWidth > 0) { // skip pct cols
|
|
colPctWidthTotal += colPctWidth;
|
|
colPctAdjTotal += PR_MAX(colFrame->GetWidth(PCT_ADJ), colPctWidth);
|
|
continue;
|
|
}
|
|
colPctAdjTotal += PR_MAX(colFrame->GetWidth(PCT_ADJ), 0);
|
|
nscoord colWidth = PR_MAX(colFrame->GetMinWidth(), colFrame->GetFixWidth());
|
|
colWidth = PR_MAX(colWidth, colFrame->GetDesWidth()); // XXX check this
|
|
//colWidth = PR_MAX(colWidth, colFrame->GetPctWidth());
|
|
spanTotal += colWidth;
|
|
if (colFrame->GetWidth(PCT_ADJ) <= 0) { // if we have a cell that is neither PCT or PCT_ADJ we have
|
|
// other places where we can drop the width
|
|
canSkipPctAdj = PR_TRUE;
|
|
spanTotalNoPctAdj += colWidth;
|
|
}
|
|
if ((spanX > 0) && (mTableFrame->GetNumCellsOriginatingInCol(colX + spanX) > 0)) {
|
|
spanCellSpacing += spacingX;
|
|
}
|
|
}
|
|
cellPctWidth += spanCellSpacing; // add it back in since it was subtracted from aBasisIn
|
|
if (cellPctWidth <= 0) {
|
|
continue;
|
|
}
|
|
spanTotal = canSkipPctAdj ? spanTotalNoPctAdj: spanTotal; // if we can skip the PCT_ADJ ignore theire width
|
|
|
|
colPctWidthTotal = canSkipPctAdj ? colPctAdjTotal: colPctWidthTotal;
|
|
|
|
if ((PR_MAX(colPctWidthTotal, colPctAdjTotal)+ spanCellSpacing) < cellPctWidth) {
|
|
// we have something to distribute ...
|
|
// record the percent contributions for the spanned cols
|
|
PRInt32 usedColumns = colSpan;
|
|
for (spanX = colSpan-1; spanX >= 0; spanX--) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX + spanX);
|
|
if (!colFrame) continue;
|
|
if ((colFrame->GetWidth(PCT) > 0) || (canSkipPctAdj && (colFrame->GetWidth(PCT_ADJ) > 0))) {
|
|
// dont use pct cols or if we can skip the pct adj event do not take the PCT_ADJ cols
|
|
usedColumns--;
|
|
continue;
|
|
} // count the pieces
|
|
if (usedColumns == 0)
|
|
usedColumns = 1; // avoid division by 0 later
|
|
nscoord minWidth = colFrame->GetMinWidth();
|
|
nscoord colWidth = PR_MAX(minWidth, colFrame->GetFixWidth());
|
|
colWidth = PR_MAX(colWidth, colFrame->GetDesWidth()); // XXX check this
|
|
float avail = (float)PR_MAX(cellPctWidth - colPctWidthTotal, 0);
|
|
float colPctAdj = (0 == spanTotal)
|
|
? avail / ((float) usedColumns) / ((float)basis)
|
|
: (avail / (float)basis) * (((float)colWidth) / (float)spanTotal);
|
|
if (colPctAdj > 0) {
|
|
nscoord colPctAdjWidth = colFrame->GetWidth(PCT_ADJ);
|
|
nscoord newColPctAdjWidth = nsTableFrame::RoundToPixel(NSToCoordRound(colPctAdj * (float)basis), aPixelToTwips);
|
|
if (newColPctAdjWidth > colPctAdjWidth) {
|
|
newColPctAdjWidth = PR_MAX(newColPctAdjWidth, minWidth);
|
|
if (newColPctAdjWidth > colFrame->GetWidth(PCT)) {
|
|
colFrame->SetWidth(PCT_ADJ, newColPctAdjWidth);
|
|
if(0 != basis) { // I am paranoid
|
|
colPctTotal += NSToCoordRound(100.0f *(newColPctAdjWidth-colPctAdjWidth) / (float)basis);
|
|
// accumulate the new distributed percents
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
usedColumns--;
|
|
colPctWidthTotal += colPctAdjWidth; // accumulate the already distributed percents
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} // end for (index ..
|
|
} // end for (colX ..
|
|
|
|
// We are done with our spanlist, get rid of it now
|
|
PL_FinishArenaPool(&spanArena);
|
|
|
|
// if the percent total went over 100%, adjustments need to be made to right most cols
|
|
if (colPctTotal > 100) {
|
|
ReduceOverSpecifiedPctCols(nsTableFrame::RoundToPixel(NSToCoordRound(((float)(colPctTotal - 100)) * 0.01f * (float)basis), aPixelToTwips));
|
|
}
|
|
|
|
// adjust the basis to include table border, padding and cell spacing
|
|
basis += borderPadding.left + borderPadding.right + mCellSpacingTotal;
|
|
return WrapupAssignPctColumnWidths(mTableFrame, aReflowState, basis);
|
|
}
|
|
|
|
|
|
// calculate totals by width type. The logic here is kept in synch with
|
|
// that in CanAllocate. aDupedWidths (duplicatd) are widths that will be
|
|
// allocated in BalanceColumnWidths before aTotalsWidths (e.g. aTotalWidths[PCT]
|
|
// will have aDuplicatedWidths[PCT] consisting of the MIN widths of cols which
|
|
// have a PCT width).
|
|
void BasicTableLayoutStrategy::CalculateTotals(PRInt32* aTotalCounts,
|
|
PRInt32* aTotalWidths,
|
|
PRInt32* aDupedWidths,
|
|
PRInt32& a0ProportionalCount)
|
|
{
|
|
//mTableFrame->Dump(PR_TRUE, PR_FALSE);
|
|
for (PRInt32 widthX = 0; widthX < NUM_WIDTHS; widthX++) {
|
|
aTotalCounts[widthX] = 0;
|
|
aTotalWidths[widthX] = 0;
|
|
aDupedWidths[widthX] = 0;
|
|
}
|
|
a0ProportionalCount = 0;
|
|
|
|
PRInt32 numEffCols = mTableFrame->GetEffectiveColCount();
|
|
PRInt32 colX;
|
|
|
|
for (colX = 0; colX < numEffCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
nscoord minCol = colFrame->GetMinWidth();
|
|
aTotalCounts[MIN_CON]++;
|
|
aTotalWidths[MIN_CON] += minCol;
|
|
|
|
if (e0ProportionConstraint == colFrame->GetConstraint()) {
|
|
a0ProportionalCount++;
|
|
}
|
|
|
|
nscoord pct = colFrame->GetPctWidth();
|
|
nscoord fix = colFrame->GetWidth(FIX);
|
|
nscoord fixAdj = colFrame->GetWidth(FIX_ADJ);
|
|
// if there is a pct width then no others are considered
|
|
if (pct > 0) {
|
|
aTotalCounts[PCT]++;
|
|
aTotalWidths[PCT] += PR_MAX(pct, minCol);
|
|
aDupedWidths[PCT] += minCol;
|
|
}
|
|
else if ((fix > 0) || (fixAdj > 0)) {
|
|
if (fix > 0) {
|
|
aTotalCounts[FIX]++;
|
|
aTotalWidths[FIX] += PR_MAX(fix, minCol);
|
|
aDupedWidths[FIX] += minCol;
|
|
}
|
|
if (fixAdj > 0) {
|
|
if (fixAdj > fix) {
|
|
aTotalCounts[FIX_ADJ]++;
|
|
aTotalWidths[FIX_ADJ] += PR_MAX(fixAdj, minCol);
|
|
if (fix > 0) {
|
|
aDupedWidths[FIX_ADJ] += fix;
|
|
}
|
|
else { // there was no fix
|
|
aDupedWidths[FIX_ADJ] += minCol;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if ((eProportionConstraint == colFrame->GetConstraint()) ||
|
|
(e0ProportionConstraint == colFrame->GetConstraint())) {
|
|
aTotalCounts[MIN_PRO]++;
|
|
aTotalWidths[MIN_PRO] += PR_MAX(colFrame->GetWidth(MIN_PRO), minCol);
|
|
aDupedWidths[MIN_PRO] += minCol;
|
|
}
|
|
else {
|
|
// desired alone is lowest priority
|
|
aTotalCounts[DES_CON]++;
|
|
aTotalWidths[DES_CON] += PR_MAX(colFrame->GetDesWidth(), minCol);
|
|
aDupedWidths[DES_CON] += minCol;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
struct ColInfo {
|
|
ColInfo(nsTableColFrame* aFrame,
|
|
PRInt32 aIndex,
|
|
PRInt32 aMinWidth,
|
|
PRInt32 aWidth,
|
|
PRInt32 aMaxWidth)
|
|
: mFrame(aFrame), mIndex(aIndex), mMinWidth(aMinWidth),
|
|
mWidth(aWidth), mMaxWidth(aMaxWidth), mWeight(0)
|
|
{}
|
|
nsTableColFrame* mFrame;
|
|
PRInt32 mIndex;
|
|
PRInt32 mMinWidth;
|
|
PRInt32 mWidth;
|
|
PRInt32 mMaxWidth;
|
|
float mWeight;
|
|
};
|
|
|
|
void
|
|
AC_Wrapup(nsTableFrame* aTableFrame,
|
|
PRInt32 aNumItems,
|
|
ColInfo** aColInfo,
|
|
PRBool aAbort = PR_FALSE)
|
|
{
|
|
if (aColInfo) {
|
|
for (PRInt32 i = 0; i < aNumItems; i++) {
|
|
if (aColInfo[i]) {
|
|
if (!aAbort) {
|
|
aTableFrame->SetColumnWidth(aColInfo[i]->mIndex, aColInfo[i]->mWidth);
|
|
}
|
|
delete aColInfo[i];
|
|
}
|
|
}
|
|
delete [] aColInfo;
|
|
}
|
|
}
|
|
|
|
void
|
|
AC_Increase(PRInt32 aNumAutoCols,
|
|
ColInfo** aColInfo,
|
|
PRInt32 aDivisor,
|
|
PRInt32& aAvailWidth,
|
|
float aPixelToTwips)
|
|
{
|
|
for (PRInt32 i = 0; i < aNumAutoCols; i++) {
|
|
if ((aAvailWidth <= 0) || (aDivisor <= 0)) {
|
|
break;
|
|
}
|
|
// aDivisor represents the sum of unallocated space (diff between max and min values)
|
|
float percent = ((float)aColInfo[i]->mMaxWidth - (float)aColInfo[i]->mMinWidth) / (float)aDivisor;
|
|
aDivisor -= aColInfo[i]->mMaxWidth - aColInfo[i]->mMinWidth;
|
|
|
|
nscoord addition = nsTableFrame::RoundToPixel(NSToCoordRound(((float)(aAvailWidth)) * percent), aPixelToTwips);
|
|
// if its the last col, try to give what's left to it
|
|
if ((i == aNumAutoCols - 1) && (addition < aAvailWidth)) {
|
|
addition = aAvailWidth;
|
|
}
|
|
// don't let the addition exceed what is available to add
|
|
addition = PR_MIN(addition, aAvailWidth);
|
|
// don't go over the col max
|
|
addition = PR_MIN(addition, aColInfo[i]->mMaxWidth - aColInfo[i]->mWidth);
|
|
aColInfo[i]->mWidth += addition;
|
|
aAvailWidth -= addition;
|
|
}
|
|
}
|
|
|
|
void
|
|
AC_Decrease(PRInt32 aNumAutoCols,
|
|
ColInfo** aColInfo,
|
|
PRInt32 aDivisor,
|
|
PRInt32& aExcess,
|
|
float aPixelToTwips)
|
|
{
|
|
for (PRInt32 i = 0; i < aNumAutoCols; i++) {
|
|
if ((aExcess <= 0) || (aDivisor <= 0)) {
|
|
break;
|
|
}
|
|
float percent = ((float)aColInfo[i]->mMaxWidth) / (float)aDivisor;
|
|
aDivisor -= aColInfo[i]->mMaxWidth;
|
|
nscoord reduction = nsTableFrame::RoundToPixel(NSToCoordRound(((float)(aExcess)) * percent), aPixelToTwips);
|
|
// if its the last col, try to remove the remaining excess from it
|
|
if ((i == aNumAutoCols - 1) && (reduction < aExcess)) {
|
|
reduction = aExcess;
|
|
}
|
|
// don't let the reduction exceed what is available to reduce
|
|
reduction = PR_MIN(reduction, aExcess);
|
|
// don't go under the col min
|
|
reduction = PR_MIN(reduction, aColInfo[i]->mWidth - aColInfo[i]->mMinWidth);
|
|
aColInfo[i]->mWidth -= reduction;
|
|
aExcess -= reduction;
|
|
}
|
|
}
|
|
|
|
void
|
|
AC_Sort(ColInfo** aColInfo, PRInt32 aNumCols)
|
|
{
|
|
// sort the cols based on the Weight
|
|
for (PRInt32 j = aNumCols - 1; j > 0; j--) {
|
|
for (PRInt32 i = 0; i < j; i++) {
|
|
if (aColInfo[i]->mWeight < aColInfo[i+1]->mWeight) { // swap them
|
|
ColInfo* save = aColInfo[i];
|
|
aColInfo[i] = aColInfo[i+1];
|
|
aColInfo[i+1] = save;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// this assumes that the table has set the width for each col to be its min
|
|
void BasicTableLayoutStrategy::AllocateConstrained(PRInt32 aAvailWidth,
|
|
PRInt32 aWidthType,
|
|
PRBool aStartAtMin,
|
|
PRInt32* aAllocTypes,
|
|
float aPixelToTwips)
|
|
{
|
|
if ((0 == aAvailWidth) || (aWidthType < 0) || (aWidthType >= NUM_WIDTHS)) {
|
|
NS_ASSERTION(PR_TRUE, "invalid args to AllocateConstrained");
|
|
return;
|
|
}
|
|
|
|
PRInt32 numCols = mTableFrame->GetColCount();
|
|
PRInt32 numConstrainedCols = 0;
|
|
nscoord sumMaxConstraints = 0;
|
|
nscoord sumMinConstraints = 0;
|
|
PRInt32 colX;
|
|
// find out how many constrained cols there are
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
if (!CanAllocate(aWidthType, aAllocTypes[colX], colFrame)) {
|
|
continue;
|
|
}
|
|
numConstrainedCols++;
|
|
}
|
|
|
|
// allocate storage for the constrained cols. Only they get adjusted.
|
|
ColInfo** colInfo = new ColInfo*[numConstrainedCols];
|
|
if (!colInfo) return;
|
|
memset(colInfo, 0, numConstrainedCols * sizeof(ColInfo *));
|
|
|
|
PRInt32 maxMinDiff = 0;
|
|
PRInt32 constrColX = 0;
|
|
// set the col info entries for each constrained col
|
|
for (colX = 0; colX < numCols; colX++) {
|
|
nsTableColFrame* colFrame = mTableFrame->GetColFrame(colX);
|
|
if (!colFrame) continue;
|
|
if (!CanAllocate(aWidthType, aAllocTypes[colX], colFrame)) {
|
|
continue;
|
|
}
|
|
nscoord minWidth = mTableFrame->GetColumnWidth(colX);
|
|
nscoord maxWidth = GetColWidth(colFrame, aWidthType);
|
|
// proportional and desired widths are handled together
|
|
PRBool haveProWidth = PR_FALSE;
|
|
if (DES_CON == aWidthType) {
|
|
// Take into acount MIN_adj width as it has been included in totals before
|
|
maxWidth = PR_MAX(maxWidth, colFrame->GetWidth(MIN_ADJ));
|
|
nscoord proWidth = colFrame->GetWidth(MIN_PRO);
|
|
if (proWidth >= 0) {
|
|
haveProWidth = PR_TRUE;
|
|
maxWidth = proWidth;
|
|
}
|
|
}
|
|
|
|
if (maxWidth <= 0) continue;
|
|
|
|
sumMaxConstraints += maxWidth;
|
|
sumMinConstraints += minWidth;
|
|
|
|
maxWidth = PR_MAX(maxWidth, minWidth);
|
|
maxMinDiff += maxWidth - minWidth;
|
|
nscoord startWidth = (aStartAtMin) ? minWidth : maxWidth;
|
|
colInfo[constrColX] = new ColInfo(colFrame, colX, minWidth, startWidth, maxWidth);
|
|
if (!colInfo[constrColX]) {
|
|
AC_Wrapup(mTableFrame, numConstrainedCols, colInfo, PR_TRUE);
|
|
return;
|
|
}
|
|
aAllocTypes[colX] = (haveProWidth) ? MIN_PRO : aWidthType;
|
|
constrColX++;
|
|
}
|
|
|
|
if (constrColX < numConstrainedCols) {
|
|
// some of the constrainted cols might have been 0 and skipped
|
|
numConstrainedCols = constrColX;
|
|
}
|
|
|
|
PRInt32 i;
|
|
if (aStartAtMin) { // allocate extra space
|
|
nscoord availWidth = aAvailWidth;
|
|
for (i = 0; i < numConstrainedCols; i++) {
|
|
// the weight here is a relative metric for determining when cols reach their max constraint.
|
|
// A col with a larger weight will reach its max before one with a smaller value.
|
|
nscoord delta = colInfo[i]->mMaxWidth - colInfo[i]->mWidth;
|
|
colInfo[i]->mWeight = (delta <= 0)
|
|
? 1000000 // cols which have already reached their max get a large value
|
|
: ((float)colInfo[i]->mMaxWidth) / ((float)delta);
|
|
}
|
|
|
|
// sort the cols based on the weight so that in one pass cols with higher
|
|
// weights will get their max earlier than ones with lower weights
|
|
// This is an innefficient bubble sort, but unless there are an unlikely
|
|
// large number of cols, it is not an issue.
|
|
AC_Sort(colInfo, numConstrainedCols);
|
|
|
|
// compute the proportion to be added to each column, don't go beyond the col's
|
|
// max. This algorithm assumes that the Weight works as stated above
|
|
AC_Increase(numConstrainedCols, colInfo, sumMaxConstraints - sumMinConstraints,
|
|
availWidth, aPixelToTwips);
|
|
}
|
|
else { // reduce each col width
|
|
nscoord reduceWidth = maxMinDiff - aAvailWidth;
|
|
if (reduceWidth < 0) {
|
|
NS_ASSERTION(PR_TRUE, "AllocateConstrained called incorrectly");
|
|
AC_Wrapup(mTableFrame, numConstrainedCols, colInfo);
|
|
return;
|
|
}
|
|
for (i = 0; i < numConstrainedCols; i++) {
|
|
// the weight here is a relative metric for determining when cols reach their min.
|
|
// A col with a larger weight will reach its min before one with a smaller value.
|
|
nscoord delta = colInfo[i]->mWidth - colInfo[i]->mMinWidth;
|
|
colInfo[i]->mWeight = (delta <= 0)
|
|
? 1000000 // cols which have already reached their min get a large value
|
|
: ((float)colInfo[i]->mWidth) / ((float)delta);
|
|
}
|
|
|
|
// sort the cols based on the Weight
|
|
AC_Sort(colInfo, numConstrainedCols);
|
|
|
|
// compute the proportion to be subtracted from each column, don't go beyond
|
|
// the col's min. This algorithm assumes that the Weight works as stated above
|
|
AC_Decrease(numConstrainedCols, colInfo, sumMaxConstraints, reduceWidth, aPixelToTwips);
|
|
}
|
|
AC_Wrapup(mTableFrame, numConstrainedCols, colInfo);
|
|
}
|
|
|
|
#ifdef DEBUG_TABLE_STRATEGY
|
|
void BasicTableLayoutStrategy::Dump(PRInt32 aIndent)
|
|
{
|
|
char* indent = new char[aIndent + 1];
|
|
if (!indent) return;
|
|
for (PRInt32 i = 0; i < aIndent + 1; i++) {
|
|
indent[i] = ' ';
|
|
}
|
|
indent[aIndent] = 0;
|
|
|
|
printf("%s**START BASIC STRATEGY DUMP** table=%p cols=%X",
|
|
indent, mTableFrame, mCols);
|
|
printf("\n%s cellSpacing=%d propRatio=%.2f navQuirks=%d",
|
|
indent, mCellSpacingTotal, mMinToDesProportionRatio, mIsNavQuirksMode);
|
|
printf(" **END BASIC STRATEGY DUMP** \n");
|
|
delete [] indent;
|
|
}
|
|
#endif
|