// Only place the selected child ...
/* virtual */ nsresult
nsMathMLSelectedFrame::Place(nsRenderingContext& aRenderingContext,
bool aPlaceOrigin,
nsHTMLReflowMetrics& aDesiredSize)
{
nsIFrame* childFrame = GetSelectedFrame();
if (mInvalidMarkup) {
return ReflowError(aRenderingContext, aDesiredSize);
}
aDesiredSize.ClearSize();
aDesiredSize.SetBlockStartAscent(0);
mBoundingMetrics = nsBoundingMetrics();
if (childFrame) {
GetReflowAndBoundingMetricsFor(childFrame, aDesiredSize, mBoundingMetrics);
if (aPlaceOrigin) {
FinishReflowChild(childFrame, PresContext(), aDesiredSize, nullptr, 0, 0, 0);
}
mReference.x = 0;
mReference.y = aDesiredSize.BlockStartAscent();
}
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
return NS_OK;
}
void
nsTableColGroupFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsTableColGroupFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
NS_ASSERTION(nullptr!=mContent, "bad state -- null content for frame");
const nsStyleVisibility* groupVis = StyleVisibility();
bool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible);
if (collapseGroup) {
GetTableFrame()->SetNeedToCollapse(true);
}
// for every content child that (is a column thingy and does not already have a frame)
// create a frame and adjust it's style
for (nsIFrame *kidFrame = mFrames.FirstChild(); kidFrame;
kidFrame = kidFrame->GetNextSibling()) {
// Give the child frame a chance to reflow, even though we know it'll have 0 size
nsHTMLReflowMetrics kidSize(aReflowState);
nsHTMLReflowState kidReflowState(aPresContext, aReflowState, kidFrame,
LogicalSize(kidFrame->GetWritingMode()));
nsReflowStatus status;
ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, 0, 0, 0, status);
FinishReflowChild(kidFrame, aPresContext, kidSize, nullptr, 0, 0, 0);
}
aDesiredSize.ClearSize();
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
// Only reflow the selected child ...
void
nsMathMLSelectedFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
aStatus = NS_FRAME_COMPLETE;
aDesiredSize.ClearSize();
aDesiredSize.SetBlockStartAscent(0);
mBoundingMetrics = nsBoundingMetrics();
nsIFrame* childFrame = GetSelectedFrame();
if (childFrame) {
WritingMode wm = childFrame->GetWritingMode();
LogicalSize availSize = aReflowState.ComputedSize(wm);
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
nsHTMLReflowState childReflowState(aPresContext, aReflowState,
childFrame, availSize);
ReflowChild(childFrame, aPresContext, aDesiredSize,
childReflowState, aStatus);
SaveReflowAndBoundingMetricsFor(childFrame, aDesiredSize,
aDesiredSize.mBoundingMetrics);
mBoundingMetrics = aDesiredSize.mBoundingMetrics;
}
FinalizeReflow(*aReflowState.rendContext, aDesiredSize);
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsPlaceholderFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
#ifdef DEBUG
// We should be getting reflowed before our out-of-flow.
// If this is our first reflow, and our out-of-flow has already received its
// first reflow (before us), complain.
// XXXdholbert This "look for a previous continuation or IB-split sibling"
// code could use nsLayoutUtils::GetPrevContinuationOrIBSplitSibling(), if
// we ever add a function like that. (We currently have a "Next" version.)
if ((GetStateBits() & NS_FRAME_FIRST_REFLOW) &&
!(mOutOfFlowFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
// Unfortunately, this can currently happen when the placeholder is in a
// later continuation or later IB-split sibling than its out-of-flow (as
// is the case in some of our existing unit tests). So for now, in that
// case, we'll warn instead of asserting.
bool isInContinuationOrIBSplit = false;
nsIFrame* ancestor = this;
while ((ancestor = ancestor->GetParent())) {
if (ancestor->GetPrevContinuation() ||
ancestor->Properties().Get(IBSplitPrevSibling())) {
isInContinuationOrIBSplit = true;
break;
}
}
if (isInContinuationOrIBSplit) {
NS_WARNING("Out-of-flow frame got reflowed before its placeholder");
} else {
NS_ERROR("Out-of-flow frame got reflowed before its placeholder");
}
}
#endif
DO_GLOBAL_REFLOW_COUNT("nsPlaceholderFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
aDesiredSize.ClearSize();
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsTableColFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsTableColFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
aDesiredSize.ClearSize();
const nsStyleVisibility* colVis = StyleVisibility();
bool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
if (collapseCol) {
nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this);
tableFrame->SetNeedToCollapse(true);
}
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsMathMLTokenFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
MarkInReflow();
mPresentationData.flags &= ~NS_MATHML_ERROR;
// initializations needed for empty markup like <mtag></mtag>
aDesiredSize.ClearSize();
aDesiredSize.SetBlockStartAscent(0);
aDesiredSize.mBoundingMetrics = nsBoundingMetrics();
nsIFrame* childFrame = GetFirstPrincipalChild();
while (childFrame) {
// ask our children to compute their bounding metrics
nsHTMLReflowMetrics childDesiredSize(aReflowState.GetWritingMode(),
aDesiredSize.mFlags
| NS_REFLOW_CALC_BOUNDING_METRICS);
WritingMode wm = childFrame->GetWritingMode();
LogicalSize availSize = aReflowState.ComputedSize(wm);
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
nsHTMLReflowState childReflowState(aPresContext, aReflowState,
childFrame, availSize);
ReflowChild(childFrame, aPresContext, childDesiredSize,
childReflowState, aStatus);
//NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "bad status");
SaveReflowAndBoundingMetricsFor(childFrame, childDesiredSize,
childDesiredSize.mBoundingMetrics);
childFrame = childFrame->GetNextSibling();
}
// place and size children
FinalizeReflow(aReflowState.rendContext->GetDrawTarget(), aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsMathMLmrootFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
MarkInReflow();
nsReflowStatus childStatus;
mPresentationData.flags &= ~NS_MATHML_ERROR;
aDesiredSize.ClearSize();
aDesiredSize.SetBlockStartAscent(0);
nsBoundingMetrics bmSqr, bmBase, bmIndex;
DrawTarget* drawTarget = aReflowState.rendContext->GetDrawTarget();
//////////////////
// Reflow Children
int32_t count = 0;
nsIFrame* baseFrame = nullptr;
nsIFrame* indexFrame = nullptr;
nsHTMLReflowMetrics baseSize(aReflowState);
nsHTMLReflowMetrics indexSize(aReflowState);
nsIFrame* childFrame = mFrames.FirstChild();
while (childFrame) {
// ask our children to compute their bounding metrics
nsHTMLReflowMetrics childDesiredSize(aReflowState,
aDesiredSize.mFlags
| NS_REFLOW_CALC_BOUNDING_METRICS);
WritingMode wm = childFrame->GetWritingMode();
LogicalSize availSize = aReflowState.ComputedSize(wm);
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
nsHTMLReflowState childReflowState(aPresContext, aReflowState,
childFrame, availSize);
ReflowChild(childFrame, aPresContext,
childDesiredSize, childReflowState, childStatus);
//NS_ASSERTION(NS_FRAME_IS_COMPLETE(childStatus), "bad status");
if (0 == count) {
// base
baseFrame = childFrame;
baseSize = childDesiredSize;
bmBase = childDesiredSize.mBoundingMetrics;
}
else if (1 == count) {
// index
indexFrame = childFrame;
indexSize = childDesiredSize;
bmIndex = childDesiredSize.mBoundingMetrics;
}
count++;
childFrame = childFrame->GetNextSibling();
}
if (2 != count) {
// report an error, encourage people to get their markups in order
ReportChildCountError();
ReflowError(drawTarget, aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
// Call DidReflow() for the child frames we successfully did reflow.
DidReflowChildren(mFrames.FirstChild(), childFrame);
return;
}
////////////
// Prepare the radical symbol and the overline bar
float fontSizeInflation = nsLayoutUtils::FontSizeInflationFor(this);
RefPtr<nsFontMetrics> fm =
nsLayoutUtils::GetFontMetricsForFrame(this, fontSizeInflation);
nscoord ruleThickness, leading, psi;
GetRadicalParameters(fm, StyleFont()->mMathDisplay ==
NS_MATHML_DISPLAYSTYLE_BLOCK,
ruleThickness, leading, psi);
// built-in: adjust clearance psi to emulate \mathstrut using '1' (TexBook, p.131)
char16_t one = '1';
nsBoundingMetrics bmOne =
nsLayoutUtils::AppUnitBoundsOfString(&one, 1, *fm, drawTarget);
if (bmOne.ascent > bmBase.ascent)
psi += bmOne.ascent - bmBase.ascent;
// make sure that the rule appears on on screen
nscoord onePixel = nsPresContext::CSSPixelsToAppUnits(1);
if (ruleThickness < onePixel) {
ruleThickness = onePixel;
}
// adjust clearance psi to get an exact number of pixels -- this
// gives a nicer & uniform look on stacked radicals (bug 130282)
nscoord delta = psi % onePixel;
if (delta)
psi += onePixel - delta; // round up
// Stretch the radical symbol to the appropriate height if it is not big enough.
nsBoundingMetrics contSize = bmBase;
contSize.descent = bmBase.ascent + bmBase.descent + psi;
contSize.ascent = ruleThickness;
// height(radical) should be >= height(base) + psi + ruleThickness
nsBoundingMetrics radicalSize;
mSqrChar.Stretch(aPresContext, drawTarget,
fontSizeInflation,
NS_STRETCH_DIRECTION_VERTICAL,
contSize, radicalSize,
NS_STRETCH_LARGER,
StyleVisibility()->mDirection);
// radicalSize have changed at this point, and should match with
// the bounding metrics of the char
mSqrChar.GetBoundingMetrics(bmSqr);
// Update the desired size for the container (like msqrt, index is not yet included)
// the baseline will be that of the base.
mBoundingMetrics.ascent = bmBase.ascent + psi + ruleThickness;
mBoundingMetrics.descent =
std::max(bmBase.descent,
(bmSqr.ascent + bmSqr.descent - mBoundingMetrics.ascent));
mBoundingMetrics.width = bmSqr.width + bmBase.width;
mBoundingMetrics.leftBearing = bmSqr.leftBearing;
mBoundingMetrics.rightBearing = bmSqr.width +
std::max(bmBase.width, bmBase.rightBearing); // take also care of the rule
aDesiredSize.SetBlockStartAscent(mBoundingMetrics.ascent + leading);
aDesiredSize.Height() = aDesiredSize.BlockStartAscent() +
std::max(baseSize.Height() - baseSize.BlockStartAscent(),
mBoundingMetrics.descent + ruleThickness);
aDesiredSize.Width() = mBoundingMetrics.width;
/////////////
// Re-adjust the desired size to include the index.
// the index is raised by some fraction of the height
// of the radical, see \mroot macro in App. B, TexBook
float raiseIndexPercent = 0.6f;
gfxFont* mathFont = fm->GetThebesFontGroup()->GetFirstMathFont();
if (mathFont) {
raiseIndexPercent =
mathFont->GetMathConstant(gfxFontEntry::RadicalDegreeBottomRaisePercent);
}
nscoord raiseIndexDelta = NSToCoordRound(raiseIndexPercent *
(bmSqr.ascent + bmSqr.descent));
nscoord indexRaisedAscent = mBoundingMetrics.ascent // top of radical
- (bmSqr.ascent + bmSqr.descent) // to bottom of radical
+ raiseIndexDelta + bmIndex.ascent + bmIndex.descent; // to top of raised index
nscoord indexClearance = 0;
if (mBoundingMetrics.ascent < indexRaisedAscent) {
indexClearance =
indexRaisedAscent - mBoundingMetrics.ascent; // excess gap introduced by a tall index
mBoundingMetrics.ascent = indexRaisedAscent;
nscoord descent = aDesiredSize.Height() - aDesiredSize.BlockStartAscent();
aDesiredSize.SetBlockStartAscent(mBoundingMetrics.ascent + leading);
aDesiredSize.Height() = aDesiredSize.BlockStartAscent() + descent;
}
nscoord dxIndex, dxSqr;
GetRadicalXOffsets(bmIndex.width, bmSqr.width, fm, &dxIndex, &dxSqr);
mBoundingMetrics.width = dxSqr + bmSqr.width + bmBase.width;
mBoundingMetrics.leftBearing =
std::min(dxIndex + bmIndex.leftBearing, dxSqr + bmSqr.leftBearing);
mBoundingMetrics.rightBearing = dxSqr + bmSqr.width +
std::max(bmBase.width, bmBase.rightBearing);
aDesiredSize.Width() = mBoundingMetrics.width;
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
GatherAndStoreOverflow(&aDesiredSize);
// place the index
nscoord dx = dxIndex;
nscoord dy = aDesiredSize.BlockStartAscent() -
(indexRaisedAscent + indexSize.BlockStartAscent() - bmIndex.ascent);
FinishReflowChild(indexFrame, aPresContext, indexSize, nullptr,
MirrorIfRTL(aDesiredSize.Width(), indexSize.Width(), dx),
dy, 0);
// place the radical symbol and the radical bar
dx = dxSqr;
dy = indexClearance + leading; // leave a leading at the top
mSqrChar.SetRect(nsRect(MirrorIfRTL(aDesiredSize.Width(), bmSqr.width, dx),
dy, bmSqr.width, bmSqr.ascent + bmSqr.descent));
dx += bmSqr.width;
mBarRect.SetRect(MirrorIfRTL(aDesiredSize.Width(), bmBase.width, dx),
dy, bmBase.width, ruleThickness);
// place the base
dy = aDesiredSize.BlockStartAscent() - baseSize.BlockStartAscent();
FinishReflowChild(baseFrame, aPresContext, baseSize, nullptr,
MirrorIfRTL(aDesiredSize.Width(), baseSize.Width(), dx),
dy, 0);
mReference.x = 0;
mReference.y = aDesiredSize.BlockStartAscent();
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsMathMLmfencedFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
MarkInReflow();
mPresentationData.flags &= ~NS_MATHML_ERROR;
aDesiredSize.ClearSize();
aDesiredSize.SetBlockStartAscent(0);
aDesiredSize.mBoundingMetrics = nsBoundingMetrics();
int32_t i;
const nsStyleFont* font = StyleFont();
float fontSizeInflation = nsLayoutUtils::FontSizeInflationFor(this);
RefPtr<nsFontMetrics> fm;
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fm),
fontSizeInflation);
nscoord axisHeight, em;
GetAxisHeight(*aReflowState.rendContext, fm, axisHeight);
GetEmHeight(fm, em);
// leading to be left at the top and the bottom of stretched chars
nscoord leading = NSToCoordRound(0.2f * em);
/////////////
// Reflow children
// Asking each child to cache its bounding metrics
// Note that we don't use the base method nsMathMLContainerFrame::Reflow()
// because we want to stretch our fences, separators and stretchy frames using
// the *same* initial aDesiredSize.mBoundingMetrics. If we were to use the base
// method here, our stretchy frames will be stretched and placed, and we may
// end up stretching our fences/separators with a different aDesiredSize.
// XXX The above decision was revisited in bug 121748 and this code can be
// refactored to use nsMathMLContainerFrame::Reflow() at some stage.
nsReflowStatus childStatus;
nsIFrame* firstChild = GetFirstPrincipalChild();
nsIFrame* childFrame = firstChild;
nscoord ascent = 0, descent = 0;
if (firstChild || mOpenChar || mCloseChar || mSeparatorsCount > 0) {
// We use the ASCII metrics to get our minimum height. This way,
// if we have borders or a background, they will fit better with
// other elements on the line.
ascent = fm->MaxAscent();
descent = fm->MaxDescent();
}
while (childFrame) {
nsHTMLReflowMetrics childDesiredSize(aReflowState,
aDesiredSize.mFlags
| NS_REFLOW_CALC_BOUNDING_METRICS);
WritingMode wm = childFrame->GetWritingMode();
LogicalSize availSize = aReflowState.ComputedSize(wm);
availSize.BSize(wm) = NS_UNCONSTRAINEDSIZE;
nsHTMLReflowState childReflowState(aPresContext, aReflowState,
childFrame, availSize);
ReflowChild(childFrame, aPresContext, childDesiredSize,
childReflowState, childStatus);
//NS_ASSERTION(NS_FRAME_IS_COMPLETE(childStatus), "bad status");
SaveReflowAndBoundingMetricsFor(childFrame, childDesiredSize,
childDesiredSize.mBoundingMetrics);
mozilla::WritingMode outerWM = aReflowState.GetWritingMode();
nscoord childDescent = childDesiredSize.BSize(outerWM) -
childDesiredSize.BlockStartAscent();
if (descent < childDescent)
descent = childDescent;
if (ascent < childDesiredSize.BlockStartAscent())
ascent = childDesiredSize.BlockStartAscent();
childFrame = childFrame->GetNextSibling();
}
/////////////
// Ask stretchy children to stretch themselves
nsBoundingMetrics containerSize;
nsStretchDirection stretchDir = NS_STRETCH_DIRECTION_VERTICAL;
GetPreferredStretchSize(*aReflowState.rendContext,
0, /* i.e., without embellishments */
stretchDir, containerSize);
childFrame = firstChild;
while (childFrame) {
nsIMathMLFrame* mathmlChild = do_QueryFrame(childFrame);
if (mathmlChild) {
nsHTMLReflowMetrics childDesiredSize(aReflowState);
// retrieve the metrics that was stored at the previous pass
GetReflowAndBoundingMetricsFor(childFrame, childDesiredSize,
childDesiredSize.mBoundingMetrics);
mathmlChild->Stretch(*aReflowState.rendContext,
stretchDir, containerSize, childDesiredSize);
// store the updated metrics
SaveReflowAndBoundingMetricsFor(childFrame, childDesiredSize,
childDesiredSize.mBoundingMetrics);
nscoord childDescent = childDesiredSize.Height() - childDesiredSize.BlockStartAscent();
if (descent < childDescent)
descent = childDescent;
if (ascent < childDesiredSize.BlockStartAscent())
ascent = childDesiredSize.BlockStartAscent();
}
childFrame = childFrame->GetNextSibling();
}
// bug 121748: for surrounding fences & separators, use a size that covers everything
GetPreferredStretchSize(*aReflowState.rendContext,
STRETCH_CONSIDER_EMBELLISHMENTS,
stretchDir, containerSize);
bool isRTL = StyleVisibility()->mDirection;
// To achieve a minimum size of "1", the container should be enlarged by the
// unstretched metrics of the fences and separators.
ApplyUnstretchedMetrics(aPresContext, *aReflowState.rendContext,
fontSizeInflation, mOpenChar,
containerSize, isRTL);
for (i = 0; i < mSeparatorsCount; i++) {
ApplyUnstretchedMetrics(aPresContext, *aReflowState.rendContext,
fontSizeInflation, &mSeparatorsChar[i],
containerSize, isRTL);
}
ApplyUnstretchedMetrics(aPresContext, *aReflowState.rendContext,
fontSizeInflation, mCloseChar,
containerSize, isRTL);
//////////////////////////////////////////
// Prepare the opening fence, separators, and closing fence, and
// adjust the origin of children.
// we need to center around the axis
nscoord delta = std::max(containerSize.ascent - axisHeight,
containerSize.descent + axisHeight);
containerSize.ascent = delta + axisHeight;
containerSize.descent = delta - axisHeight;
/////////////////
// opening fence ...
ReflowChar(aPresContext, *aReflowState.rendContext, *fm,
fontSizeInflation, mOpenChar,
NS_MATHML_OPERATOR_FORM_PREFIX, font->mScriptLevel,
axisHeight, leading, em, containerSize, ascent, descent, isRTL);
/////////////////
// separators ...
for (i = 0; i < mSeparatorsCount; i++) {
ReflowChar(aPresContext, *aReflowState.rendContext, *fm,
fontSizeInflation, &mSeparatorsChar[i],
NS_MATHML_OPERATOR_FORM_INFIX, font->mScriptLevel,
axisHeight, leading, em, containerSize, ascent, descent, isRTL);
}
/////////////////
// closing fence ...
ReflowChar(aPresContext, *aReflowState.rendContext, *fm,
fontSizeInflation, mCloseChar,
NS_MATHML_OPERATOR_FORM_POSTFIX, font->mScriptLevel,
axisHeight, leading, em, containerSize, ascent, descent, isRTL);
//////////////////
// Adjust the origins of each child.
// and update our bounding metrics
i = 0;
nscoord dx = 0;
nsBoundingMetrics bm;
bool firstTime = true;
nsMathMLChar *leftChar, *rightChar;
if (isRTL) {
leftChar = mCloseChar;
rightChar = mOpenChar;
} else {
leftChar = mOpenChar;
rightChar = mCloseChar;
}
if (leftChar) {
PlaceChar(leftChar, ascent, bm, dx);
aDesiredSize.mBoundingMetrics = bm;
firstTime = false;
}
if (isRTL) {
childFrame = this->GetLastChild(nsIFrame::kPrincipalList);
} else {
childFrame = firstChild;
}
while (childFrame) {
nsHTMLReflowMetrics childSize(aReflowState);
GetReflowAndBoundingMetricsFor(childFrame, childSize, bm);
if (firstTime) {
firstTime = false;
aDesiredSize.mBoundingMetrics = bm;
}
else
aDesiredSize.mBoundingMetrics += bm;
FinishReflowChild(childFrame, aPresContext, childSize, nullptr,
dx, ascent - childSize.BlockStartAscent(), 0);
dx += childSize.Width();
if (i < mSeparatorsCount) {
PlaceChar(&mSeparatorsChar[isRTL ? mSeparatorsCount - 1 - i : i],
ascent, bm, dx);
aDesiredSize.mBoundingMetrics += bm;
}
i++;
if (isRTL) {
childFrame = childFrame->GetPrevSibling();
} else {
childFrame = childFrame->GetNextSibling();
}
}
if (rightChar) {
PlaceChar(rightChar, ascent, bm, dx);
if (firstTime)
aDesiredSize.mBoundingMetrics = bm;
else
aDesiredSize.mBoundingMetrics += bm;
}
aDesiredSize.Width() = aDesiredSize.mBoundingMetrics.width;
aDesiredSize.Height() = ascent + descent;
aDesiredSize.SetBlockStartAscent(ascent);
SetBoundingMetrics(aDesiredSize.mBoundingMetrics);
SetReference(nsPoint(0, aDesiredSize.BlockStartAscent()));
// see if we should fix the spacing
FixInterFrameSpacing(aDesiredSize);
// Finished with these:
ClearSavedChildMetrics();
// Set our overflow area
GatherAndStoreOverflow(&aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsTableOuterFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aOuterRS,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsTableOuterFrame");
DISPLAY_REFLOW(aPresContext, this, aOuterRS, aDesiredSize, aStatus);
uint8_t captionSide = GetCaptionSide();
// Initialize out parameters
aDesiredSize.ClearSize();
aStatus = NS_FRAME_COMPLETE;
if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
// Set up our kids. They're already present, on an overflow list,
// or there are none so we'll create them now
MoveOverflowToChildList();
}
// Use longs to get more-aligned space.
#define LONGS_IN_HTMLRS \
((sizeof(nsHTMLReflowState) + sizeof(long) - 1) / sizeof(long))
long captionRSSpace[LONGS_IN_HTMLRS];
nsHTMLReflowState *captionRS =
static_cast<nsHTMLReflowState*>((void*)captionRSSpace);
long innerRSSpace[LONGS_IN_HTMLRS];
nsHTMLReflowState *innerRS =
static_cast<nsHTMLReflowState*>((void*) innerRSSpace);
nsRect origInnerRect = InnerTableFrame()->GetRect();
nsRect origInnerVisualOverflow = InnerTableFrame()->GetVisualOverflowRect();
bool innerFirstReflow =
(InnerTableFrame()->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0;
nsRect origCaptionRect;
nsRect origCaptionVisualOverflow;
bool captionFirstReflow;
if (mCaptionFrames.NotEmpty()) {
origCaptionRect = mCaptionFrames.FirstChild()->GetRect();
origCaptionVisualOverflow =
mCaptionFrames.FirstChild()->GetVisualOverflowRect();
captionFirstReflow =
(mCaptionFrames.FirstChild()->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0;
}
// ComputeAutoSize has to match this logic.
WritingMode wm;
if (captionSide == NO_SIDE) {
// We don't have a caption.
wm = InnerTableFrame()->GetWritingMode();
OuterBeginReflowChild(aPresContext, InnerTableFrame(), aOuterRS,
innerRSSpace, aOuterRS.ComputedSize(wm).ISize(wm));
} else if (captionSide == NS_STYLE_CAPTION_SIDE_LEFT ||
captionSide == NS_STYLE_CAPTION_SIDE_RIGHT) {
// nsTableCaptionFrame::ComputeAutoSize takes care of making side
// captions small. Compute the caption's size first, and tell the
// table to fit in what's left.
wm = mCaptionFrames.FirstChild()->GetWritingMode();
OuterBeginReflowChild(aPresContext, mCaptionFrames.FirstChild(), aOuterRS,
captionRSSpace, aOuterRS.ComputedSize(wm).ISize(wm));
nscoord innerAvailISize = aOuterRS.ComputedSize(wm).ISize(wm) -
captionRS->ComputedSizeWithMarginBorderPadding(wm).ISize(wm);
OuterBeginReflowChild(aPresContext, InnerTableFrame(), aOuterRS,
innerRSSpace, innerAvailISize);
} else if (captionSide == NS_STYLE_CAPTION_SIDE_TOP ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM) {
// Compute the table's size first, and then prevent the caption from
// being wider unless it has to be.
//
// Note that CSS 2.1 (but not 2.0) says:
// The width of the anonymous box is the border-edge width of the
// table box inside it
// We don't actually make our anonymous box that width (if we did,
// it would break 'auto' margins), but this effectively does that.
wm = InnerTableFrame()->GetWritingMode();
OuterBeginReflowChild(aPresContext, InnerTableFrame(), aOuterRS,
innerRSSpace, aOuterRS.ComputedSize(wm).ISize(wm));
// It's good that CSS 2.1 says not to include margins, since we
// can't, since they already been converted so they exactly
// fill the available width (ignoring the margin on one side if
// neither are auto). (We take advantage of that later when we call
// GetCaptionOrigin, though.)
nscoord innerBorderWidth =
innerRS->ComputedSizeWithBorderPadding(wm).ISize(wm);
OuterBeginReflowChild(aPresContext, mCaptionFrames.FirstChild(), aOuterRS,
captionRSSpace, innerBorderWidth);
} else {
NS_ASSERTION(captionSide == NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE ||
captionSide == NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE,
"unexpected caption-side");
// Size the table and the caption independently.
wm = mCaptionFrames.FirstChild()->GetWritingMode();
OuterBeginReflowChild(aPresContext, mCaptionFrames.FirstChild(), aOuterRS,
captionRSSpace, aOuterRS.ComputedSize(wm).ISize(wm));
wm = InnerTableFrame()->GetWritingMode();
OuterBeginReflowChild(aPresContext, InnerTableFrame(), aOuterRS,
innerRSSpace, aOuterRS.ComputedSize(wm).ISize(wm));
}
// First reflow the caption.
nsHTMLReflowMetrics captionMet(captionRS->GetWritingMode());
nsSize captionSize;
nsMargin captionMargin;
if (mCaptionFrames.NotEmpty()) {
nsReflowStatus capStatus; // don't let the caption cause incomplete
OuterDoReflowChild(aPresContext, mCaptionFrames.FirstChild(),
*captionRS, captionMet, capStatus);
captionSize.width = captionMet.Width();
captionSize.height = captionMet.Height();
captionMargin = captionRS->ComputedPhysicalMargin();
// Now that we know the height of the caption, reduce the available height
// for the table frame if we are height constrained and the caption is above
// or below the inner table.
if (NS_UNCONSTRAINEDSIZE != aOuterRS.AvailableHeight()) {
nscoord captionHeight = 0;
switch (captionSide) {
case NS_STYLE_CAPTION_SIDE_TOP:
case NS_STYLE_CAPTION_SIDE_BOTTOM:
case NS_STYLE_CAPTION_SIDE_TOP_OUTSIDE:
case NS_STYLE_CAPTION_SIDE_BOTTOM_OUTSIDE: {
captionHeight = captionSize.height + captionMargin.TopBottom();
break;
}
}
innerRS->AvailableHeight() =
std::max(0, innerRS->AvailableHeight() - captionHeight);
}
} else {
captionSize.SizeTo(0,0);
captionMargin.SizeTo(0,0,0,0);
}
// Then, now that we know how much to reduce the width of the inner
// table to account for side captions, reflow the inner table.
nsHTMLReflowMetrics innerMet(innerRS->GetWritingMode());
OuterDoReflowChild(aPresContext, InnerTableFrame(), *innerRS,
innerMet, aStatus);
nsSize innerSize;
innerSize.width = innerMet.Width();
innerSize.height = innerMet.Height();
nsMargin innerMargin = innerRS->ComputedPhysicalMargin();
nsSize containSize = GetContainingBlockSize(aOuterRS);
// Now that we've reflowed both we can place them.
// XXXldb Most of the input variables here are now uninitialized!
// XXX Need to recompute inner table's auto margins for the case of side
// captions. (Caption's are broken too, but that should be fixed earlier.)
if (mCaptionFrames.NotEmpty()) {
nsPoint captionOrigin;
GetCaptionOrigin(captionSide, containSize, innerSize,
innerMargin, captionSize, captionMargin, captionOrigin);
FinishReflowChild(mCaptionFrames.FirstChild(), aPresContext, captionMet,
captionRS, captionOrigin.x, captionOrigin.y, 0);
captionRS->~nsHTMLReflowState();
}
// XXX If the height is constrained then we need to check whether
// everything still fits...
nsPoint innerOrigin;
GetInnerOrigin(captionSide, containSize, captionSize,
captionMargin, innerSize, innerMargin, innerOrigin);
FinishReflowChild(InnerTableFrame(), aPresContext, innerMet, innerRS,
innerOrigin.x, innerOrigin.y, 0);
innerRS->~nsHTMLReflowState();
nsTableFrame::InvalidateTableFrame(InnerTableFrame(), origInnerRect,
origInnerVisualOverflow, innerFirstReflow);
if (mCaptionFrames.NotEmpty()) {
nsTableFrame::InvalidateTableFrame(mCaptionFrames.FirstChild(), origCaptionRect,
origCaptionVisualOverflow,
captionFirstReflow);
}
UpdateReflowMetrics(captionSide, aDesiredSize, innerMargin, captionMargin);
if (GetPrevInFlow()) {
ReflowOverflowContainerChildren(aPresContext, aOuterRS,
aDesiredSize.mOverflowAreas, 0,
aStatus);
}
FinishReflowWithAbsoluteFrames(aPresContext, aDesiredSize, aOuterRS, aStatus);
// Return our desired rect
NS_FRAME_SET_TRUNCATION(aStatus, aOuterRS, aDesiredSize);
}
