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Start painting text shadow of selection from the left edge in RTL text. Bug 755994, r=roc

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This commit is contained in:
Simon Montagu 2012-05-17 13:34:06 +03:00
parent 413e8254dc
commit b7a516ae3e
2 changed files with 21 additions and 13 deletions
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3
layout/generic/nsTextFrame.h
View File

@ -498,7 +498,8 @@ protected:
gfxContext* aCtx,
const nscolor& aForegroundColor,
const nsCharClipDisplayItem::ClipEdges& aClipEdges,
nscoord aLeftSideOffset);
nscoord aLeftSideOffset,
gfxRect& aBoundingBox);
struct LineDecoration {
nsIFrame* mFrame;

31
layout/generic/nsTextFrameThebes.cpp
View File

@ -5087,23 +5087,16 @@ nsTextFrame::PaintOneShadow(PRUint32 aOffset, PRUint32 aLength,
const gfxPoint& aFramePt, const gfxPoint& aTextBaselinePt,
gfxContext* aCtx, const nscolor& aForegroundColor,
const nsCharClipDisplayItem::ClipEdges& aClipEdges,
nscoord aLeftSideOffset)
nscoord aLeftSideOffset, gfxRect& aBoundingBox)
{
SAMPLE_LABEL("nsTextFrame", "PaintOneShadow");
gfxPoint shadowOffset(aShadowDetails->mXOffset, aShadowDetails->mYOffset);
nscoord blurRadius = NS_MAX(aShadowDetails->mRadius, 0);
gfxTextRun::Metrics shadowMetrics =
mTextRun->MeasureText(aOffset, aLength, gfxFont::LOOSE_INK_EXTENTS,
nsnull, aProvider);
if (GetStateBits() & TEXT_HYPHEN_BREAK) {
AddHyphenToMetrics(this, mTextRun, &shadowMetrics, gfxFont::LOOSE_INK_EXTENTS, aCtx);
}
// This rect is the box which is equivalent to where the shadow will be painted.
// The origin of mBoundingBox is the text baseline left, so we must translate it by
// The origin of aBoundingBox is the text baseline left, so we must translate it by
// that much in order to make the origin the top-left corner of the text bounding box.
gfxRect shadowGfxRect = shadowMetrics.mBoundingBox +
gfxRect shadowGfxRect = aBoundingBox +
gfxPoint(aFramePt.x + aLeftSideOffset, aTextBaselinePt.y) + shadowOffset;
nsRect shadowRect(NSToCoordRound(shadowGfxRect.X()),
NSToCoordRound(shadowGfxRect.Y()),
@ -5247,11 +5240,21 @@ nsTextFrame::PaintTextWithSelectionColors(gfxContext* aCtx,
// Draw shadows, if any
if (textStyle->mTextShadow) {
gfxTextRun::Metrics shadowMetrics =
mTextRun->MeasureText(offset, length, gfxFont::LOOSE_INK_EXTENTS,
nsnull, &aProvider);
if (GetStateBits() & TEXT_HYPHEN_BREAK) {
AddHyphenToMetrics(this, mTextRun, &shadowMetrics,
gfxFont::LOOSE_INK_EXTENTS, aCtx);
}
for (PRUint32 i = textStyle->mTextShadow->Length(); i > 0; --i) {
PaintOneShadow(offset, length,
textStyle->mTextShadow->ShadowAt(i - 1), &aProvider,
dirtyRect, aFramePt, textBaselinePt, aCtx,
foreground, aClipEdges, xOffset);
foreground, aClipEdges,
xOffset - (mTextRun->IsRightToLeft() ?
shadowMetrics.mBoundingBox.width : 0),
shadowMetrics.mBoundingBox);
}
}
@ -5596,11 +5599,15 @@ nsTextFrame::PaintText(nsRenderingContext* aRenderingContext, nsPoint aPt,
if (textStyle->mTextShadow) {
// Text shadow happens with the last value being painted at the back,
// ie. it is painted first.
gfxTextRun::Metrics shadowMetrics =
mTextRun->MeasureText(startOffset, maxLength, gfxFont::LOOSE_INK_EXTENTS,
nsnull, &provider);
for (PRUint32 i = textStyle->mTextShadow->Length(); i > 0; --i) {
PaintOneShadow(startOffset, maxLength,
textStyle->mTextShadow->ShadowAt(i - 1), &provider,
aDirtyRect, framePt, textBaselinePt, ctx,
foregroundColor, clipEdges, snappedLeftEdge);
foregroundColor, clipEdges,
snappedLeftEdge, shadowMetrics.mBoundingBox);
}
}