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Mozilla/mozilla/layout/tables/nsTableRowFrame.cpp
bzbarsky%mit.edu ba5badedcb Change the FrameNeedsReflow API to pass the dirty flags to be added directly to 
the method, instead of setting them before calling the method.  That way we can
avoid reflowing the ancestor of a reflow root which is not itself dirty but has
dirty children.  This also makes it harder to set dirty bits inconsistently
with the FrameNeedsReflow call.  Bug 378784, r+sr=dbaron, pending rbs' review
on the mathml parts.


git-svn-id: svn://10.0.0.236/trunk@226007 18797224-902f-48f8-a5cc-f745e15eee43
2007-05-06 19:16:52 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsTableRowFrame.h"
#include "nsTableRowGroupFrame.h"
#include "nsIRenderingContext.h"
#include "nsIPresShell.h"
#include "nsPresContext.h"
#include "nsStyleContext.h"
#include "nsStyleConsts.h"
#include "nsGkAtoms.h"
#include "nsIContent.h"
#include "nsTableFrame.h"
#include "nsTableCellFrame.h"
#include "nsCSSRendering.h"
#include "nsHTMLParts.h"
#include "nsTableColGroupFrame.h"
#include "nsTableColFrame.h"
#include "nsCOMPtr.h"
#include "nsDisplayList.h"
struct nsTableCellReflowState : public nsHTMLReflowState
{
nsTableCellReflowState(nsPresContext* aPresContext,
const nsHTMLReflowState& aParentReflowState,
nsIFrame* aFrame,
const nsSize& aAvailableSpace,
PRBool aInit = PR_TRUE)
: nsHTMLReflowState(aPresContext, aParentReflowState, aFrame,
aAvailableSpace, -1, -1, aInit)
{
}
void FixUp(const nsSize& aAvailSpace);
};
void nsTableCellReflowState::FixUp(const nsSize& aAvailSpace)
{
// fix the mComputed values during a pass 2 reflow since the cell can be a percentage base
NS_ASSERTION(NS_UNCONSTRAINEDSIZE != aAvailSpace.width,
"unconstrained available width in reflow");
if (NS_UNCONSTRAINEDSIZE != ComputedWidth()) {
nscoord computedWidth = aAvailSpace.width - mComputedBorderPadding.left -
mComputedBorderPadding.right;
computedWidth = PR_MAX(0, computedWidth);
SetComputedWidth(computedWidth);
}
if (NS_UNCONSTRAINEDSIZE != mComputedHeight) {
if (NS_UNCONSTRAINEDSIZE != aAvailSpace.height) {
mComputedHeight = aAvailSpace.height - mComputedBorderPadding.top - mComputedBorderPadding.bottom;
mComputedHeight = PR_MAX(0, mComputedHeight);
}
}
}
void
nsTableRowFrame::InitChildReflowState(nsPresContext& aPresContext,
const nsSize& aAvailSize,
PRBool aBorderCollapse,
nsTableCellReflowState& aReflowState)
{
nsMargin collapseBorder;
nsMargin* pCollapseBorder = nsnull;
if (aBorderCollapse) {
// we only reflow cells, so don't need to check frame type
nsBCTableCellFrame* bcCellFrame = (nsBCTableCellFrame*)aReflowState.frame;
if (bcCellFrame) {
pCollapseBorder = bcCellFrame->GetBorderWidth(collapseBorder);
}
}
aReflowState.Init(&aPresContext, -1, -1, pCollapseBorder);
aReflowState.FixUp(aAvailSize);
}
void
nsTableRowFrame::SetFixedHeight(nscoord aValue)
{
nscoord height = PR_MAX(0, aValue);
if (HasFixedHeight()) {
if (height > mStyleFixedHeight) {
mStyleFixedHeight = height;
}
}
else {
mStyleFixedHeight = height;
if (height > 0) {
SetHasFixedHeight(PR_TRUE);
}
}
}
void
nsTableRowFrame::SetPctHeight(float aPctValue,
PRBool aForce)
{
nscoord height = PR_MAX(0, NSToCoordRound(aPctValue * 100.0f));
if (HasPctHeight()) {
if ((height > mStylePctHeight) || aForce) {
mStylePctHeight = height;
}
}
else {
mStylePctHeight = height;
if (height > 0.0f) {
SetHasPctHeight(PR_TRUE);
}
}
}
/* ----------- nsTableRowFrame ---------- */
nsTableRowFrame::nsTableRowFrame(nsStyleContext* aContext)
: nsHTMLContainerFrame(aContext)
{
mBits.mRowIndex = mBits.mFirstInserted = 0;
ResetHeight(0);
}
nsTableRowFrame::~nsTableRowFrame()
{
}
NS_IMETHODIMP
nsTableRowFrame::Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow)
{
nsresult rv;
// Let the base class do its initialization
rv = nsHTMLContainerFrame::Init(aContent, aParent, aPrevInFlow);
// record that children that are ignorable whitespace should be excluded
mState |= NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE;
if (aPrevInFlow) {
// Set the row index
nsTableRowFrame* rowFrame = (nsTableRowFrame*)aPrevInFlow;
SetRowIndex(rowFrame->GetRowIndex());
}
return rv;
}
NS_IMETHODIMP
nsTableRowFrame::AppendFrames(nsIAtom* aListName,
nsIFrame* aFrameList)
{
NS_ASSERTION(!aListName, "unexpected child list");
// Append the frames
mFrames.AppendFrames(nsnull, aFrameList);
// Add the new cell frames to the table
nsTableFrame *tableFrame = nsTableFrame::GetTableFrame(this);
for (nsIFrame* childFrame = aFrameList; childFrame;
childFrame = childFrame->GetNextSibling()) {
if (IS_TABLE_CELL(childFrame->GetType())) {
// Add the cell to the cell map
tableFrame->AppendCell((nsTableCellFrame&)*childFrame, GetRowIndex());
}
}
PresContext()->PresShell()->FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
tableFrame->SetGeometryDirty();
return NS_OK;
}
NS_IMETHODIMP
nsTableRowFrame::InsertFrames(nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList)
{
NS_ASSERTION(!aListName, "unexpected child list");
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this,
"inserting after sibling frame with different parent");
// Get the table frame
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
// gather the new frames (only those which are cells) into an array
nsIAtom* cellFrameType = (tableFrame->IsBorderCollapse()) ? nsGkAtoms::bcTableCellFrame : nsGkAtoms::tableCellFrame;
nsTableCellFrame* prevCellFrame = (nsTableCellFrame *)nsTableFrame::GetFrameAtOrBefore(this, aPrevFrame, cellFrameType);
nsVoidArray cellChildren;
for (nsIFrame* childFrame = aFrameList; childFrame;
childFrame = childFrame->GetNextSibling()) {
if (IS_TABLE_CELL(childFrame->GetType())) {
cellChildren.AppendElement(childFrame);
}
}
// insert the cells into the cell map
PRInt32 colIndex = -1;
if (prevCellFrame) {
prevCellFrame->GetColIndex(colIndex);
}
tableFrame->InsertCells(cellChildren, GetRowIndex(), colIndex);
// Insert the frames in the frame list
mFrames.InsertFrames(nsnull, aPrevFrame, aFrameList);
PresContext()->PresShell()->FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
tableFrame->SetGeometryDirty();
return NS_OK;
}
NS_IMETHODIMP
nsTableRowFrame::RemoveFrame(nsIAtom* aListName,
nsIFrame* aOldFrame)
{
NS_ASSERTION(!aListName, "unexpected child list");
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (tableFrame) {
if (IS_TABLE_CELL(aOldFrame->GetType())) {
nsTableCellFrame* cellFrame = (nsTableCellFrame*)aOldFrame;
PRInt32 colIndex;
cellFrame->GetColIndex(colIndex);
// remove the cell from the cell map
tableFrame->RemoveCell(cellFrame, GetRowIndex());
// Remove the frame and destroy it
mFrames.DestroyFrame(aOldFrame);
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
tableFrame->SetGeometryDirty();
}
else {
NS_ERROR("unexpected frame type");
return NS_ERROR_INVALID_ARG;
}
}
return NS_OK;
}
/* virtual */ nsMargin
nsTableRowFrame::GetUsedMargin() const
{
return nsMargin(0,0,0,0);
}
/* virtual */ nsMargin
nsTableRowFrame::GetUsedBorder() const
{
return nsMargin(0,0,0,0);
}
/* virtual */ nsMargin
nsTableRowFrame::GetUsedPadding() const
{
return nsMargin(0,0,0,0);
}
nscoord
GetHeightOfRowsSpannedBelowFirst(nsTableCellFrame& aTableCellFrame,
nsTableFrame& aTableFrame)
{
nscoord height = 0;
nscoord cellSpacingY = aTableFrame.GetCellSpacingY();
PRInt32 rowSpan = aTableFrame.GetEffectiveRowSpan(aTableCellFrame);
// add in height of rows spanned beyond the 1st one
nsIFrame* nextRow = aTableCellFrame.GetParent()->GetNextSibling();
for (PRInt32 rowX = 1; ((rowX < rowSpan) && nextRow);) {
if (nsGkAtoms::tableRowFrame == nextRow->GetType()) {
height += nextRow->GetSize().height;
rowX++;
}
height += cellSpacingY;
nextRow = nextRow->GetNextSibling();
}
return height;
}
nsTableCellFrame*
nsTableRowFrame::GetFirstCell()
{
nsIFrame* childFrame = mFrames.FirstChild();
while (childFrame) {
if (IS_TABLE_CELL(childFrame->GetType())) {
return (nsTableCellFrame*)childFrame;
}
childFrame = childFrame->GetNextSibling();
}
return nsnull;
}
/**
* Post-reflow hook. This is where the table row does its post-processing
*/
void
nsTableRowFrame::DidResize()
{
// Resize and re-align the cell frames based on our row height
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (!tableFrame)
return;
nsTableIterator iter(*this);
nsIFrame* childFrame = iter.First();
nsHTMLReflowMetrics desiredSize;
desiredSize.width = mRect.width;
desiredSize.height = mRect.height;
desiredSize.mOverflowArea = nsRect(0, 0, desiredSize.width,
desiredSize.height);
while (childFrame) {
if (IS_TABLE_CELL(childFrame->GetType())) {
nsTableCellFrame* cellFrame = (nsTableCellFrame*)childFrame;
nscoord cellHeight = mRect.height + GetHeightOfRowsSpannedBelowFirst(*cellFrame, *tableFrame);
// resize the cell's height
//if (cellFrameSize.height!=cellHeight)
{
cellFrame->SetSize(nsSize(cellFrame->GetSize().width, cellHeight));
// realign cell content based on the new height
cellFrame->VerticallyAlignChild(mMaxCellAscent);
ConsiderChildOverflow(desiredSize.mOverflowArea, cellFrame);
// Note that if the cell's *content* needs to change in response
// to this height, it will get a special height reflow.
}
}
// Get the next child
childFrame = iter.Next();
}
FinishAndStoreOverflow(&desiredSize);
if (HasView()) {
nsContainerFrame::SyncFrameViewAfterReflow(PresContext(), this, GetView(), &desiredSize.mOverflowArea, 0);
}
// Let our base class do the usual work
}
// returns max-ascent amongst all cells that have 'vertical-align: baseline'
// *including* cells with rowspans
nscoord nsTableRowFrame::GetMaxCellAscent() const
{
return mMaxCellAscent;
}
nscoord nsTableRowFrame::GetRowBaseline()
{
if(mMaxCellAscent)
return mMaxCellAscent;
// If we don't have a baseline on any of the cells we go for the lowest
// content edge of the inner block frames.
// Every table cell has a cell frame with its border and padding. Inside
// the cell is a block frame. The cell is as high as the tallest cell in
// the parent row. As a consequence the block frame might not touch both
// the top and the bottom padding of it parent cell frame at the same time.
//
// bbbbbbbbbbbbbbbbbb cell border: b
// bppppppppppppppppb cell padding: p
// bpxxxxxxxxxxxxxxpb inner block: x
// bpx xpb
// bpx xpb
// bpx xpb
// bpxxxxxxxxxxxxxxpb base line
// bp pb
// bp pb
// bppppppppppppppppb
// bbbbbbbbbbbbbbbbbb
nsTableIterator iter(*this);
nsIFrame* childFrame = iter.First();
nscoord ascent = 0;
while (childFrame) {
if (IS_TABLE_CELL(childFrame->GetType())) {
nsIFrame* firstKid = childFrame->GetFirstChild(nsnull);
ascent = PR_MAX(ascent, firstKid->GetRect().YMost());
}
// Get the next child
childFrame = iter.Next();
}
return ascent;
}
nscoord
nsTableRowFrame::GetHeight(nscoord aPctBasis) const
{
nscoord height = 0;
if ((aPctBasis > 0) && HasPctHeight()) {
height = NSToCoordRound(GetPctHeight() * (float)aPctBasis);
}
if (HasFixedHeight()) {
height = PR_MAX(height, GetFixedHeight());
}
return PR_MAX(height, GetContentHeight());
}
void
nsTableRowFrame::ResetHeight(nscoord aFixedHeight)
{
SetHasFixedHeight(PR_FALSE);
SetHasPctHeight(PR_FALSE);
SetFixedHeight(0);
SetPctHeight(0);
SetContentHeight(0);
if (aFixedHeight > 0) {
SetFixedHeight(aFixedHeight);
}
mMaxCellAscent = 0;
mMaxCellDescent = 0;
}
void
nsTableRowFrame::UpdateHeight(nscoord aHeight,
nscoord aAscent,
nscoord aDescent,
nsTableFrame* aTableFrame,
nsTableCellFrame* aCellFrame)
{
if (!aTableFrame || !aCellFrame) {
NS_ASSERTION(PR_FALSE , "invalid call");
return;
}
if (aHeight != NS_UNCONSTRAINEDSIZE) {
if (!(aCellFrame->HasVerticalAlignBaseline())) { // only the cell's height matters
if (GetHeight() < aHeight) {
PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame);
if (rowSpan == 1) {
SetContentHeight(aHeight);
}
}
}
else { // the alignment on the baseline can change the height
NS_ASSERTION((aAscent != NS_UNCONSTRAINEDSIZE) && (aDescent != NS_UNCONSTRAINEDSIZE), "invalid call");
// see if this is a long ascender
if (mMaxCellAscent < aAscent) {
mMaxCellAscent = aAscent;
}
// see if this is a long descender and without rowspan
if (mMaxCellDescent < aDescent) {
PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame);
if (rowSpan == 1) {
mMaxCellDescent = aDescent;
}
}
// keep the tallest height in sync
if (GetHeight() < mMaxCellAscent + mMaxCellDescent) {
SetContentHeight(mMaxCellAscent + mMaxCellDescent);
}
}
}
}
nscoord
nsTableRowFrame::CalcHeight(const nsHTMLReflowState& aReflowState)
{
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (!tableFrame)
return 0;
nscoord computedHeight = (NS_UNCONSTRAINEDSIZE == aReflowState.mComputedHeight)
? 0 : aReflowState.mComputedHeight;
ResetHeight(computedHeight);
const nsStylePosition* position = GetStylePosition();
if (eStyleUnit_Coord == position->mHeight.GetUnit()) {
SetFixedHeight(position->mHeight.GetCoordValue());
}
else if (eStyleUnit_Percent == position->mHeight.GetUnit()) {
SetPctHeight(position->mHeight.GetPercentValue());
}
for (nsIFrame* kidFrame = mFrames.FirstChild(); kidFrame;
kidFrame = kidFrame->GetNextSibling()) {
if (IS_TABLE_CELL(kidFrame->GetType())) {
nscoord availWidth = ((nsTableCellFrame *)kidFrame)->GetPriorAvailWidth();
nsSize desSize = ((nsTableCellFrame *)kidFrame)->GetDesiredSize();
if ((NS_UNCONSTRAINEDSIZE == aReflowState.availableHeight) && !GetPrevInFlow()) {
CalculateCellActualSize(kidFrame, desSize.width, desSize.height, availWidth);
}
// height may have changed, adjust descent to absorb any excess difference
nscoord ascent;
if (!kidFrame->GetFirstChild(nsnull)->GetFirstChild(nsnull))
ascent = desSize.height;
else
ascent = ((nsTableCellFrame *)kidFrame)->GetCellBaseline();
nscoord descent = desSize.height - ascent;
UpdateHeight(desSize.height, ascent, descent, tableFrame, (nsTableCellFrame*)kidFrame);
}
}
return GetHeight();
}
/**
* We need a custom display item for table row backgrounds. This is only used
* when the table row is the root of a stacking context (e.g., has 'opacity').
* Table row backgrounds can extend beyond the row frame bounds, when
* the row contains row-spanning cells.
*/
class nsDisplayTableRowBackground : public nsDisplayItem {
public:
nsDisplayTableRowBackground(nsTableRowFrame* aFrame) : nsDisplayItem(aFrame) {
MOZ_COUNT_CTOR(nsDisplayTableRowBackground);
}
#ifdef NS_BUILD_REFCNT_LOGGING
virtual ~nsDisplayTableRowBackground() {
MOZ_COUNT_DTOR(nsDisplayTableRowBackground);
}
#endif
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder) {
// the overflow rect contains any row-spanning cells, so it contains
// our background. Note that this means we may not be opaque even if
// the background style is a solid color.
return NS_STATIC_CAST(nsTableRowFrame*, mFrame)->GetOverflowRect() +
aBuilder->ToReferenceFrame(mFrame);
}
virtual void Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx,
const nsRect& aDirtyRect);
NS_DISPLAY_DECL_NAME("TableRowBackground")
};
void
nsDisplayTableRowBackground::Paint(nsDisplayListBuilder* aBuilder,
nsIRenderingContext* aCtx, const nsRect& aDirtyRect) {
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(mFrame);
nsPoint pt = aBuilder->ToReferenceFrame(mFrame);
nsIRenderingContext::AutoPushTranslation translate(aCtx, pt.x, pt.y);
TableBackgroundPainter painter(tableFrame,
TableBackgroundPainter::eOrigin_TableRow,
mFrame->PresContext(), *aCtx,
aDirtyRect - pt);
painter.PaintRow(NS_STATIC_CAST(nsTableRowFrame*, mFrame));
}
NS_IMETHODIMP
nsTableRowFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
if (!IsVisibleInSelection(aBuilder))
return NS_OK;
PRBool isRoot = aBuilder->IsAtRootOfPseudoStackingContext();
if (isRoot) {
// This background is created regardless of whether this frame is
// visible or not. Visibility decisions are delegated to the
// table background painter.
// We would use nsDisplayGeneric for this rare case except that we
// need the background to be larger than the row frame in some
// cases.
nsresult rv = aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
nsDisplayTableRowBackground(this));
NS_ENSURE_SUCCESS(rv, rv);
}
return nsTableFrame::DisplayGenericTablePart(aBuilder, this, aDirtyRect, aLists, isRoot);
}
PRIntn
nsTableRowFrame::GetSkipSides() const
{
PRIntn skip = 0;
if (nsnull != GetPrevInFlow()) {
skip |= 1 << NS_SIDE_TOP;
}
if (nsnull != GetNextInFlow()) {
skip |= 1 << NS_SIDE_BOTTOM;
}
return skip;
}
// Calculate the cell's actual size given its pass2 desired width and height.
// Takes into account the specified height (in the style), and any special logic
// needed for backwards compatibility.
// Modifies the desired width and height that are passed in.
nsresult
nsTableRowFrame::CalculateCellActualSize(nsIFrame* aCellFrame,
nscoord& aDesiredWidth,
nscoord& aDesiredHeight,
nscoord aAvailWidth)
{
nscoord specifiedHeight = 0;
// Get the height specified in the style information
const nsStylePosition* position = aCellFrame->GetStylePosition();
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (!tableFrame)
return NS_ERROR_NULL_POINTER;
PRInt32 rowSpan = tableFrame->GetEffectiveRowSpan((nsTableCellFrame&)*aCellFrame);
switch (position->mHeight.GetUnit()) {
case eStyleUnit_Coord:
specifiedHeight = position->mHeight.GetCoordValue();
if (1 == rowSpan)
SetFixedHeight(specifiedHeight);
break;
case eStyleUnit_Percent: {
if (1 == rowSpan)
SetPctHeight(position->mHeight.GetPercentValue());
// pct heights are handled when all of the cells are finished, so don't set specifiedHeight
break;
}
case eStyleUnit_Auto:
default:
break;
}
// If the specified height is greater than the desired height, then use the specified height
if (specifiedHeight > aDesiredHeight)
aDesiredHeight = specifiedHeight;
if ((0 == aDesiredWidth) && (NS_UNCONSTRAINEDSIZE != aAvailWidth)) { // special Nav4 compatibility code for the width
aDesiredWidth = aAvailWidth;
}
return NS_OK;
}
// Calculates the available width for the table cell based on the known
// column widths taking into account column spans and column spacing
static void
CalcAvailWidth(nsTableFrame& aTableFrame,
nsTableCellFrame& aCellFrame,
nscoord aCellSpacingX,
nscoord& aColAvailWidth,
nscoord& aCellAvailWidth)
{
aColAvailWidth = aCellAvailWidth = NS_UNCONSTRAINEDSIZE;
PRInt32 colIndex;
aCellFrame.GetColIndex(colIndex);
PRInt32 colspan = aTableFrame.GetEffectiveColSpan(aCellFrame);
nscoord cellSpacing = 0;
for (PRInt32 spanX = 0; spanX < colspan; spanX++) {
nscoord colWidth = aTableFrame.GetColumnWidth(colIndex + spanX);
if (NS_UNCONSTRAINEDSIZE == aColAvailWidth) {
aColAvailWidth = colWidth;
}
else {
aColAvailWidth += colWidth;
}
if ((spanX > 0) && (aTableFrame.GetNumCellsOriginatingInCol(colIndex + spanX) > 0)) {
cellSpacing += aCellSpacingX;
}
}
if (NS_UNCONSTRAINEDSIZE != aColAvailWidth) {
aColAvailWidth += cellSpacing;
}
aCellAvailWidth = aColAvailWidth;
}
nscoord
GetSpaceBetween(PRInt32 aPrevColIndex,
PRInt32 aColIndex,
PRInt32 aColSpan,
nsTableFrame& aTableFrame,
nscoord aCellSpacingX,
PRBool aIsLeftToRight,
PRBool aCheckVisibility)
{
nscoord space = 0;
PRInt32 colX;
if (aIsLeftToRight) {
for (colX = aPrevColIndex + 1; aColIndex > colX; colX++) {
PRBool isCollapsed = PR_FALSE;
if (!aCheckVisibility) {
space += aTableFrame.GetColumnWidth(colX);
}
else {
nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX);
const nsStyleVisibility* colVis = colFrame->GetStyleVisibility();
PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
nsIFrame* cgFrame = colFrame->GetParent();
const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility();
PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE ==
groupVis->mVisible);
isCollapsed = collapseCol || collapseGroup;
if (!isCollapsed)
space += aTableFrame.GetColumnWidth(colX);
}
if (!isCollapsed && (aTableFrame.GetNumCellsOriginatingInCol(colX) > 0)) {
space += aCellSpacingX;
}
}
}
else {
PRInt32 lastCol = aColIndex + aColSpan - 1;
for (colX = aPrevColIndex - 1; colX > lastCol; colX--) {
PRBool isCollapsed = PR_FALSE;
if (!aCheckVisibility) {
space += aTableFrame.GetColumnWidth(colX);
}
else {
nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX);
const nsStyleVisibility* colVis = colFrame->GetStyleVisibility();
PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
nsIFrame* cgFrame = colFrame->GetParent();
const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility();
PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE ==
groupVis->mVisible);
isCollapsed = collapseCol || collapseGroup;
if (!isCollapsed)
space += aTableFrame.GetColumnWidth(colX);
}
if (!isCollapsed && (aTableFrame.GetNumCellsOriginatingInCol(colX) > 0)) {
space += aCellSpacingX;
}
}
}
return space;
}
// subtract the heights of aRow's prev in flows from the unpaginated height
static
nscoord CalcHeightFromUnpaginatedHeight(nsPresContext* aPresContext,
nsTableRowFrame& aRow)
{
nscoord height = 0;
nsTableRowFrame* firstInFlow = (nsTableRowFrame*)aRow.GetFirstInFlow();
if (!firstInFlow) ABORT1(0);
if (firstInFlow->HasUnpaginatedHeight()) {
height = firstInFlow->GetUnpaginatedHeight(aPresContext);
for (nsIFrame* prevInFlow = aRow.GetPrevInFlow(); prevInFlow;
prevInFlow = prevInFlow->GetPrevInFlow()) {
height -= prevInFlow->GetSize().height;
}
}
return PR_MAX(height, 0);
}
NS_METHOD
nsTableRowFrame::ReflowChildren(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsTableFrame& aTableFrame,
nsReflowStatus& aStatus)
{
aStatus = NS_FRAME_COMPLETE;
PRBool borderCollapse = (((nsTableFrame*)aTableFrame.GetFirstInFlow())->IsBorderCollapse());
// XXXldb Should we be checking constrained height instead?
PRBool isPaginated = aPresContext->IsPaginated();
nsresult rv = NS_OK;
nscoord cellSpacingX = aTableFrame.GetCellSpacingX();
PRInt32 cellColSpan = 1; // must be defined here so it's set properly for non-cell kids
nsTableIterator iter(*this);
// remember the col index of the previous cell to handle rowspans into this row
PRInt32 firstPrevColIndex = (iter.IsLeftToRight()) ? -1 : aTableFrame.GetColCount();
PRInt32 prevColIndex = firstPrevColIndex;
nscoord x = 0; // running total of children x offset
nscoord paginatedHeight = 0;
// Reflow each of our existing cell frames
for (nsIFrame* kidFrame = iter.First(); kidFrame; kidFrame = iter.Next()) {
nsIAtom* frameType = kidFrame->GetType();
if (!IS_TABLE_CELL(frameType)) {
// XXXldb nsCSSFrameConstructor needs to enforce this!
NS_NOTREACHED("yikes, a non-row child");
// it's an unknown frame type, give it a generic reflow and ignore the results
nsTableCellReflowState kidReflowState(aPresContext, aReflowState,
kidFrame, nsSize(0,0), PR_FALSE);
InitChildReflowState(*aPresContext, nsSize(0,0), PR_FALSE, kidReflowState);
nsHTMLReflowMetrics desiredSize;
nsReflowStatus status;
ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, 0, 0, 0, status);
kidFrame->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED);
continue;
}
nsTableCellFrame* cellFrame = NS_STATIC_CAST(nsTableCellFrame*, kidFrame);
// See if we should only reflow the dirty child frames
PRBool doReflowChild = PR_TRUE;
if (!aReflowState.ShouldReflowAllKids() &&
!aTableFrame.IsGeometryDirty() &&
!NS_SUBTREE_DIRTY(kidFrame)) {
if (!aReflowState.mFlags.mSpecialHeightReflow)
doReflowChild = PR_FALSE;
}
else if ((NS_UNCONSTRAINEDSIZE != aReflowState.availableHeight)) {
// We don't reflow a rowspan >1 cell here with a constrained height.
// That happens in nsTableRowGroupFrame::SplitSpanningCells.
if (aTableFrame.GetEffectiveRowSpan(*cellFrame) > 1) {
doReflowChild = PR_FALSE;
}
}
if (aReflowState.mFlags.mSpecialHeightReflow) {
if (!isPaginated && !(cellFrame->GetStateBits() &
NS_FRAME_CONTAINS_RELATIVE_HEIGHT)) {
continue;
}
}
PRInt32 cellColIndex;
cellFrame->GetColIndex(cellColIndex);
cellColSpan = aTableFrame.GetEffectiveColSpan(*cellFrame);
// If the adjacent cell is in a prior row (because of a rowspan) add in the space
if ((iter.IsLeftToRight() && (prevColIndex != (cellColIndex - 1))) ||
(!iter.IsLeftToRight() && (prevColIndex != cellColIndex + cellColSpan))) {
x += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan, aTableFrame,
cellSpacingX, iter.IsLeftToRight(), PR_FALSE);
}
// remember the rightmost (ltr) or leftmost (rtl) column this cell spans into
prevColIndex = (iter.IsLeftToRight()) ? cellColIndex + (cellColSpan - 1) : cellColIndex;
// Reflow the child frame
if (doReflowChild) {
// Calculate the available width for the table cell using the known column widths
nscoord availColWidth, availCellWidth;
CalcAvailWidth(aTableFrame, *cellFrame, cellSpacingX,
availColWidth, availCellWidth);
nsHTMLReflowMetrics desiredSize;
// If the avail width is not the same as last time we reflowed the cell or
// the cell wants to be bigger than what was available last time or
// it is a style change reflow or we are printing, then we must reflow the
// cell. Otherwise we can skip the reflow.
// XXXldb Why is this condition distinct from doReflowChild above?
nsSize cellDesiredSize = cellFrame->GetDesiredSize();
if ((availCellWidth != cellFrame->GetPriorAvailWidth()) ||
(cellDesiredSize.width > cellFrame->GetPriorAvailWidth()) ||
(GetStateBits() & NS_FRAME_IS_DIRTY) ||
isPaginated ||
NS_SUBTREE_DIRTY(cellFrame) ||
// See if it needs a special reflow, or if it had one that we need to undo.
(cellFrame->GetStateBits() & NS_FRAME_CONTAINS_RELATIVE_HEIGHT) ||
HasPctHeight()) {
// Reflow the cell to fit the available width, height
// XXX The old IR_ChildIsDirty code used availCellWidth here.
nsSize kidAvailSize(availColWidth, aReflowState.availableHeight);
// Reflow the child
nsTableCellReflowState kidReflowState(aPresContext, aReflowState,
kidFrame, kidAvailSize, PR_FALSE);
InitChildReflowState(*aPresContext, kidAvailSize, borderCollapse,
kidReflowState);
nsReflowStatus status;
rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState,
x, 0, 0, status);
// allow the table to determine if/how the table needs to be rebalanced
// If any of the cells are not complete, then we're not complete
if (NS_FRAME_IS_NOT_COMPLETE(status)) {
aStatus = NS_FRAME_NOT_COMPLETE;
}
}
else {
desiredSize.width = cellDesiredSize.width;
desiredSize.height = cellDesiredSize.height;
nsRect *overflowArea =
cellFrame->GetOverflowAreaProperty();
if (overflowArea)
desiredSize.mOverflowArea = *overflowArea;
else
desiredSize.mOverflowArea.SetRect(0, 0, cellDesiredSize.width,
cellDesiredSize.height);
// if we are in a floated table, our position is not yet established, so we cannot reposition our views
// the containing glock will do this for us after positioning the table
if (!aTableFrame.GetStyleDisplay()->IsFloating()) {
// Because we may have moved the frame we need to make sure any views are
// positioned properly. We have to do this, because any one of our parent
// frames could have moved and we have no way of knowing...
nsTableFrame::RePositionViews(kidFrame);
}
}
if (NS_UNCONSTRAINEDSIZE == aReflowState.availableHeight) {
if (!GetPrevInFlow()) {
// Calculate the cell's actual size given its pass2 size. This function
// takes into account the specified height (in the style), and any special
// logic needed for backwards compatibility
CalculateCellActualSize(kidFrame, desiredSize.width,
desiredSize.height, availCellWidth);
}
// height may have changed, adjust descent to absorb any excess difference
nscoord ascent;
if (!kidFrame->GetFirstChild(nsnull)->GetFirstChild(nsnull))
ascent = desiredSize.height;
else
ascent = ((nsTableCellFrame *)kidFrame)->GetCellBaseline();
nscoord descent = desiredSize.height - ascent;
UpdateHeight(desiredSize.height, ascent, descent, &aTableFrame, cellFrame);
}
else {
paginatedHeight = PR_MAX(paginatedHeight, desiredSize.height);
PRInt32 rowSpan = aTableFrame.GetEffectiveRowSpan((nsTableCellFrame&)*kidFrame);
if (1 == rowSpan) {
SetContentHeight(paginatedHeight);
}
}
// Place the child
if (NS_UNCONSTRAINEDSIZE != availColWidth) {
desiredSize.width = PR_MAX(availCellWidth, availColWidth);
}
FinishReflowChild(kidFrame, aPresContext, nsnull, desiredSize, x, 0, 0);
x += desiredSize.width;
}
else {
nsRect kidRect = kidFrame->GetRect();
if (kidRect.x != x) {
Invalidate(kidRect); // invalidate the old position
kidRect.x = x;
kidFrame->SetRect(kidRect); // move to the new position
nsTableFrame::RePositionViews(kidFrame);
Invalidate(kidRect); // invalidate the new position
}
// we need to account for the cell's width even if it isn't reflowed
x += kidRect.width;
if (kidFrame->GetNextInFlow()) {
aStatus = NS_FRAME_NOT_COMPLETE;
}
}
ConsiderChildOverflow(aDesiredSize.mOverflowArea, kidFrame);
x += cellSpacingX;
}
// just set our width to what was available. The table will calculate the width and not use our value.
aDesiredSize.width = aReflowState.availableWidth;
if (aReflowState.mFlags.mSpecialHeightReflow) {
aDesiredSize.height = mRect.height;
}
else if (NS_UNCONSTRAINEDSIZE == aReflowState.availableHeight) {
aDesiredSize.height = CalcHeight(aReflowState);
if (GetPrevInFlow()) {
nscoord height = CalcHeightFromUnpaginatedHeight(aPresContext, *this);
aDesiredSize.height = PR_MAX(aDesiredSize.height, height);
}
else {
if (isPaginated && HasStyleHeight()) {
// set the unpaginated height so next in flows can try to honor it
SetHasUnpaginatedHeight(PR_TRUE);
SetUnpaginatedHeight(aPresContext, aDesiredSize.height);
}
if (isPaginated && HasUnpaginatedHeight()) {
aDesiredSize.height = PR_MAX(aDesiredSize.height, GetUnpaginatedHeight(aPresContext));
}
}
}
else { // constrained height, paginated
aDesiredSize.height = paginatedHeight;
if (aDesiredSize.height <= aReflowState.availableHeight) {
nscoord height = CalcHeightFromUnpaginatedHeight(aPresContext, *this);
aDesiredSize.height = PR_MAX(aDesiredSize.height, height);
aDesiredSize.height = PR_MIN(aDesiredSize.height, aReflowState.availableHeight);
}
}
nsRect rowRect(0, 0, aDesiredSize.width, aDesiredSize.height);
aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, rowRect);
FinishAndStoreOverflow(&aDesiredSize);
return rv;
}
/** Layout the entire row.
* This method stacks cells horizontally according to HTML 4.0 rules.
*/
NS_METHOD
nsTableRowFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsTableRowFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
nsresult rv = NS_OK;
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (!tableFrame)
return NS_ERROR_NULL_POINTER;
const nsStyleVisibility* rowVis = GetStyleVisibility();
PRBool collapseRow = (NS_STYLE_VISIBILITY_COLLAPSE == rowVis->mVisible);
if (collapseRow) {
tableFrame->SetNeedToCollapse(PR_TRUE);
}
// see if a special height reflow needs to occur due to having a pct height
nsTableFrame::CheckRequestSpecialHeightReflow(aReflowState);
rv = ReflowChildren(aPresContext, aDesiredSize, aReflowState, *tableFrame,
aStatus);
// just set our width to what was available. The table will calculate the width and not use our value.
aDesiredSize.width = aReflowState.availableWidth;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return rv;
}
/**
* This function is called by the row group frame's SplitRowGroup() code when
* pushing a row frame that has cell frames that span into it. The cell frame
* should be reflowed with the specified height
*/
nscoord
nsTableRowFrame::ReflowCellFrame(nsPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
PRBool aIsTopOfPage,
nsTableCellFrame* aCellFrame,
nscoord aAvailableHeight,
nsReflowStatus& aStatus)
{
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
if (!tableFrame)
ABORT1(NS_ERROR_NULL_POINTER);
// Reflow the cell frame with the specified height. Use the existing width
nsSize cellSize = aCellFrame->GetSize();
nsSize availSize(cellSize.width, aAvailableHeight);
PRBool borderCollapse = ((nsTableFrame*)tableFrame->GetFirstInFlow())->IsBorderCollapse();
nsTableCellReflowState cellReflowState(aPresContext, aReflowState,
aCellFrame, availSize, PR_FALSE);
InitChildReflowState(*aPresContext, availSize, borderCollapse, cellReflowState);
cellReflowState.mFlags.mIsTopOfPage = aIsTopOfPage;
nsHTMLReflowMetrics desiredSize;
ReflowChild(aCellFrame, aPresContext, desiredSize, cellReflowState,
0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);
PRBool fullyComplete = NS_FRAME_IS_COMPLETE(aStatus) && !NS_FRAME_IS_TRUNCATED(aStatus);
aCellFrame->SetSize(
nsSize(cellSize.width, fullyComplete ? aAvailableHeight : desiredSize.height));
// XXX What happens if this cell has 'vertical-align: baseline' ?
// XXX Why is it assumed that the cell's ascent hasn't changed ?
if (fullyComplete) {
aCellFrame->VerticallyAlignChild(mMaxCellAscent);
}
aCellFrame->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED);
return desiredSize.height;
}
nscoord
nsTableRowFrame::CollapseRowIfNecessary(nscoord aRowOffset,
nscoord aWidth,
PRBool aCollapseGroup,
PRBool& aDidCollapse)
{
const nsStyleVisibility* rowVis = GetStyleVisibility();
PRBool collapseRow = (NS_STYLE_VISIBILITY_COLLAPSE == rowVis->mVisible);
nsTableFrame* tableFrame = NS_STATIC_CAST(nsTableFrame*, nsTableFrame::GetTableFrame(this)->GetFirstInFlow());
if (!tableFrame)
return 0;
if (collapseRow) {
tableFrame->SetNeedToCollapse(PR_TRUE);
}
nsRect rowRect = GetRect();
rowRect.y -= aRowOffset;
rowRect.width = aWidth;
nsRect overflowArea(0, 0, 0, 0);
nscoord shift = 0;
nscoord cellSpacingX = tableFrame->GetCellSpacingX();
nscoord cellSpacingY = tableFrame->GetCellSpacingY();
if (aCollapseGroup || collapseRow) {
nsTableCellFrame* cellFrame = GetFirstCell();
aDidCollapse = PR_TRUE;
shift = rowRect.height + cellSpacingY;
while (cellFrame) {
nsRect cRect = cellFrame->GetRect();
cRect.height = 0;
cellFrame->SetRect(cRect);
cellFrame = cellFrame->GetNextCell();
}
rowRect.height = 0;
}
else { // row is not collapsed
nsTableIterator iter(*this);
// remember the col index of the previous cell to handle rowspans into this
// row
PRInt32 firstPrevColIndex = (iter.IsLeftToRight()) ? -1 :
tableFrame->GetColCount();
PRInt32 prevColIndex = firstPrevColIndex;
nscoord x = 0; // running total of children x offset
PRInt32 colIncrement = iter.IsLeftToRight() ? 1 : -1;
//nscoord x = cellSpacingX;
nsIFrame* kidFrame = iter.First();
while (kidFrame) {
nsIAtom* frameType = kidFrame->GetType();
if (IS_TABLE_CELL(frameType)) {
nsTableCellFrame* cellFrame = (nsTableCellFrame*)kidFrame;
PRInt32 cellColIndex;
cellFrame->GetColIndex(cellColIndex);
PRInt32 cellColSpan = tableFrame->GetEffectiveColSpan(*cellFrame);
// If the adjacent cell is in a prior row (because of a rowspan) add in
// the space
if ((iter.IsLeftToRight() && (prevColIndex != (cellColIndex - 1))) ||
(!iter.IsLeftToRight() &&
(prevColIndex != cellColIndex + cellColSpan))) {
x += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan,
*tableFrame, cellSpacingX, iter.IsLeftToRight(),
PR_TRUE);
}
nsRect cRect(x, 0, 0,rowRect.height);
// remember the rightmost (ltr) or leftmost (rtl) column this cell
// spans into
prevColIndex = (iter.IsLeftToRight()) ?
cellColIndex + (cellColSpan - 1) : cellColIndex;
PRInt32 startIndex = (iter.IsLeftToRight()) ?
cellColIndex : cellColIndex + (cellColSpan - 1);
PRInt32 actualColSpan = cellColSpan;
PRBool isVisible = PR_FALSE;
for (PRInt32 colX = startIndex; actualColSpan > 0;
colX += colIncrement, actualColSpan--) {
nsTableColFrame* colFrame = tableFrame->GetColFrame(colX);
const nsStyleVisibility* colVis = colFrame->GetStyleVisibility();
PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE ==
colVis->mVisible);
nsIFrame* cgFrame = colFrame->GetParent();
const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility();
PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE ==
groupVis->mVisible);
PRBool isCollapsed = collapseCol || collapseGroup;
if (isCollapsed) {
tableFrame->SetNeedToCollapse(PR_TRUE);
}
else {
cRect.width += tableFrame->GetColumnWidth(colX);
isVisible = PR_TRUE;
}
if (!isCollapsed && (actualColSpan > 1)) {
nsTableColFrame* nextColFrame =
tableFrame->GetColFrame(colX + colIncrement);
const nsStyleVisibility* nextColVis =
nextColFrame->GetStyleVisibility();
if ( (NS_STYLE_VISIBILITY_COLLAPSE != nextColVis->mVisible) &&
(tableFrame->GetNumCellsOriginatingInCol(colX + colIncrement) > 0)) {
cRect.width += cellSpacingX;
}
}
}
x += cRect.width;
if (isVisible)
x += cellSpacingX;
PRInt32 actualRowSpan = tableFrame->GetEffectiveRowSpan(*cellFrame);
nsTableRowFrame* rowFrame = GetNextRow();
for (actualRowSpan--; actualRowSpan > 0 && rowFrame; actualRowSpan--) {
const nsStyleVisibility* nextRowVis = rowFrame->GetStyleVisibility();
PRBool collapseNextRow = (NS_STYLE_VISIBILITY_COLLAPSE ==
nextRowVis->mVisible);
if (!collapseNextRow) {
nsRect nextRect = rowFrame->GetRect();
cRect.height += nextRect.height + cellSpacingY;
}
rowFrame = rowFrame->GetNextRow();
}
cellFrame->SetRect(cRect);
nsRect cellOverflow = nsRect(0, 0, cRect.width, cRect.height);
cellFrame->FinishAndStoreOverflow(&cellOverflow, nsSize(cRect.width,
cRect.height));
nsTableFrame::RePositionViews(cellFrame);
ConsiderChildOverflow(overflowArea, cellFrame);
}
kidFrame = iter.Next(); // Get the next child
}
}
SetRect(rowRect);
overflowArea.UnionRect(nsRect(0,0,rowRect.width, rowRect.height),
overflowArea);
FinishAndStoreOverflow(&overflowArea, nsSize(rowRect.width,
rowRect.height));
nsTableFrame::RePositionViews(this);
return shift;
}
/**
* These 3 functions are called by the row group frame's SplitRowGroup() code when
* it creates a continuing cell frame and wants to insert it into the row's child list
*/
void
nsTableRowFrame::InsertCellFrame(nsTableCellFrame* aFrame,
nsTableCellFrame* aPrevSibling)
{
mFrames.InsertFrame(nsnull, aPrevSibling, aFrame);
aFrame->SetParent(this);
}
void
nsTableRowFrame::InsertCellFrame(nsTableCellFrame* aFrame,
PRInt32 aColIndex)
{
// Find the cell frame where col index < aColIndex
nsTableCellFrame* priorCell = nsnull;
for (nsIFrame* child = mFrames.FirstChild(); child;
child = child->GetNextSibling()) {
if (!IS_TABLE_CELL(child->GetType())) {
nsTableCellFrame* cellFrame = (nsTableCellFrame*)child;
PRInt32 colIndex;
cellFrame->GetColIndex(colIndex);
if (colIndex < aColIndex) {
priorCell = cellFrame;
}
else break;
}
}
InsertCellFrame(aFrame, priorCell);
}
void
nsTableRowFrame::RemoveCellFrame(nsTableCellFrame* aFrame)
{
if (!mFrames.RemoveFrame(aFrame))
NS_ASSERTION(PR_FALSE, "frame not in list");
}
nsIAtom*
nsTableRowFrame::GetType() const
{
return nsGkAtoms::tableRowFrame;
}
nsTableRowFrame*
nsTableRowFrame::GetNextRow() const
{
nsIFrame* childFrame = GetNextSibling();
while (childFrame) {
if (nsGkAtoms::tableRowFrame == childFrame->GetType()) {
NS_ASSERTION(NS_STYLE_DISPLAY_TABLE_ROW == childFrame->GetStyleDisplay()->mDisplay, "wrong display type on rowframe");
return (nsTableRowFrame*)childFrame;
}
childFrame = childFrame->GetNextSibling();
}
return nsnull;
}
void
nsTableRowFrame::SetUnpaginatedHeight(nsPresContext* aPresContext,
nscoord aValue)
{
NS_ASSERTION(!GetPrevInFlow(), "program error");
// Get the property
nscoord* value = (nscoord*)nsTableFrame::GetProperty(this, nsGkAtoms::rowUnpaginatedHeightProperty, PR_TRUE);
if (value) {
*value = aValue;
}
}
nscoord
nsTableRowFrame::GetUnpaginatedHeight(nsPresContext* aPresContext)
{
// See if the property is set
nscoord* value = (nscoord*)nsTableFrame::GetProperty(GetFirstInFlow(), nsGkAtoms::rowUnpaginatedHeightProperty);
if (value)
return *value;
else
return 0;
}
void nsTableRowFrame::SetContinuousBCBorderWidth(PRUint8 aForSide,
BCPixelSize aPixelValue)
{
switch (aForSide) {
case NS_SIDE_RIGHT:
mRightContBorderWidth = aPixelValue;
return;
case NS_SIDE_TOP:
mTopContBorderWidth = aPixelValue;
return;
case NS_SIDE_LEFT:
mLeftContBorderWidth = aPixelValue;
return;
default:
NS_ERROR("invalid NS_SIDE arg");
}
}
/* ----- global methods ----- */
nsIFrame*
NS_NewTableRowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsTableRowFrame(aContext);
}
#ifdef DEBUG
NS_IMETHODIMP
nsTableRowFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("TableRow"), aResult);
}
#endif
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