Vector<FloatQuad> collectAbsoluteQuads(const RenderObject& renderer, const Layout& layout, bool* wasFixed)
{
Vector<FloatQuad> quads;
auto resolver = runResolver(downcast<RenderBlockFlow>(*renderer.parent()), layout);
for (auto run : resolver.rangeForRenderer(renderer))
quads.append(renderer.localToAbsoluteQuad(FloatQuad(run.rect()), UseTransforms, wasFixed));
return quads;
}
IntPoint computeTextFirstRunLocation(const RenderText& textRenderer, const Layout& layout)
{
auto resolver = runResolver(toRenderBlockFlow(*textRenderer.parent()), layout);
auto begin = resolver.begin();
if (begin == resolver.end())
return IntPoint();
return flooredIntPoint((*begin).rect().location());
}
IntPoint computeFirstRunLocation(const RenderObject& renderer, const Layout& layout)
{
auto resolver = runResolver(downcast<RenderBlockFlow>(*renderer.parent()), layout);
auto range = resolver.rangeForRenderer(renderer);
auto begin = range.begin();
if (begin == range.end())
return IntPoint(0, 0);
return flooredIntPoint((*begin).rect().location());
}
Vector<IntRect> collectAbsoluteRects(const RenderObject& renderer, const Layout& layout, const LayoutPoint& accumulatedOffset)
{
Vector<IntRect> rects;
auto resolver = runResolver(downcast<RenderBlockFlow>(*renderer.parent()), layout);
for (auto run : resolver.rangeForRenderer(renderer)) {
FloatRect rect = run.rect();
rects.append(enclosingIntRect(FloatRect(accumulatedOffset + rect.location(), rect.size())));
}
return rects;
}
void paintFlow(const RenderBlockFlow& flow, const Layout& layout, PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (paintInfo.phase != PaintPhaseForeground)
return;
RenderStyle& style = flow.style();
if (style.visibility() != VISIBLE)
return;
bool debugBordersEnabled = flow.frame().settings().simpleLineLayoutDebugBordersEnabled();
TextPainter textPainter(paintInfo.context());
textPainter.setFont(style.fontCascade());
textPainter.setTextPaintStyle(computeTextPaintStyle(flow.frame(), style, paintInfo));
Optional<TextDecorationPainter> textDecorationPainter;
if (style.textDecorationsInEffect() != TextDecorationNone) {
const RenderText* textRenderer = childrenOfType<RenderText>(flow).first();
if (textRenderer) {
textDecorationPainter = TextDecorationPainter(paintInfo.context(), style.textDecorationsInEffect(), *textRenderer, false);
textDecorationPainter->setFont(style.fontCascade());
textDecorationPainter->setBaseline(style.fontMetrics().ascent());
}
}
LayoutRect paintRect = paintInfo.rect;
paintRect.moveBy(-paintOffset);
auto resolver = runResolver(flow, layout);
float strokeOverflow = std::ceil(flow.style().textStrokeWidth());
float deviceScaleFactor = flow.document().deviceScaleFactor();
for (auto run : resolver.rangeForRect(paintRect)) {
if (run.start() == run.end())
continue;
FloatRect rect = run.rect();
FloatRect visualOverflowRect = rect;
visualOverflowRect.inflate(strokeOverflow);
if (paintRect.y() > visualOverflowRect.maxY() || paintRect.maxY() < visualOverflowRect.y())
continue;
TextRun textRun(run.text());
textRun.setTabSize(!style.collapseWhiteSpace(), style.tabSize());
// x position indicates the line offset from the rootbox. It's always 0 in case of simple line layout.
textRun.setXPos(0);
FloatPoint textOrigin = FloatPoint(rect.x() + paintOffset.x(), roundToDevicePixel(run.baselinePosition() + paintOffset.y(), deviceScaleFactor));
textPainter.paintText(textRun, textRun.length(), rect, textOrigin);
if (textDecorationPainter) {
textDecorationPainter->setWidth(rect.width());
textDecorationPainter->paintTextDecoration(textRun, textOrigin, rect.location() + paintOffset);
}
if (debugBordersEnabled)
paintDebugBorders(paintInfo.context(), LayoutRect(run.rect()), paintOffset);
}
}
Vector<FloatQuad> collectTextAbsoluteQuads(const RenderText& textRenderer, const Layout& layout, bool* wasFixed)
{
Vector<FloatQuad> quads;
auto resolver = runResolver(toRenderBlockFlow(*textRenderer.parent()), layout);
for (auto it = resolver.begin(), end = resolver.end(); it != end; ++it) {
const auto& run = *it;
auto rect = run.rect();
quads.append(textRenderer.localToAbsoluteQuad(FloatQuad(rect), 0, wasFixed));
}
return quads;
}
Vector<IntRect> collectTextAbsoluteRects(const RenderText& textRenderer, const Layout& layout, const LayoutPoint& accumulatedOffset)
{
Vector<IntRect> rects;
auto resolver = runResolver(toRenderBlockFlow(*textRenderer.parent()), layout);
for (auto it = resolver.begin(), end = resolver.end(); it != end; ++it) {
const auto& run = *it;
auto rect = run.rect();
rects.append(enclosingIntRect(FloatRect(accumulatedOffset + rect.location(), rect.size())));
}
return rects;
}
IntRect computeBoundingBox(const RenderObject& renderer, const Layout& layout)
{
auto resolver = runResolver(downcast<RenderBlockFlow>(*renderer.parent()), layout);
FloatRect boundingBoxRect;
for (auto run : resolver.rangeForRenderer(renderer)) {
FloatRect rect = run.rect();
if (boundingBoxRect == FloatRect())
boundingBoxRect = rect;
else
boundingBoxRect.uniteEvenIfEmpty(rect);
}
return enclosingIntRect(boundingBoxRect);
}
void showLineLayoutForFlow(const RenderBlockFlow& flow, const Layout& layout, int depth)
{
int printedCharacters = 0;
printPrefix(printedCharacters, depth);
fprintf(stderr, "SimpleLineLayout (%u lines, %u runs) (%p)\n", layout.lineCount(), layout.runCount(), &layout);
++depth;
auto resolver = runResolver(flow, layout);
for (auto it = resolver.begin(), end = resolver.end(); it != end; ++it) {
const auto& run = *it;
LayoutRect r = run.rect();
printPrefix(printedCharacters, depth);
fprintf(stderr, "line %u run(%u, %u) (%.2f, %.2f) (%.2f, %.2f) \"%s\"\n", run.lineIndex(), run.start(), run.end(),
r.x().toFloat(), r.y().toFloat(), r.width().toFloat(), r.height().toFloat(), run.text().toStringWithoutCopying().utf8().data());
}
}
void showLineLayoutForFlow(const RenderBlockFlow& flow, const Layout& layout, int depth)
{
int printedCharacters = 0;
printPrefix(printedCharacters, depth);
fprintf(stderr, "SimpleLineLayout (%u lines, %u runs) (%p)\n", layout.lineCount(), layout.runCount(), &layout);
++depth;
for (auto run : runResolver(flow, layout)) {
FloatRect rect = run.rect();
printPrefix(printedCharacters, depth);
if (run.start() < run.end()) {
fprintf(stderr, "line %u run(%u, %u) (%.2f, %.2f) (%.2f, %.2f) \"%s\"\n", run.lineIndex(), run.start(), run.end(),
rect.x(), rect.y(), rect.width(), rect.height(), run.text().toStringWithoutCopying().utf8().data());
} else {
ASSERT(run.start() == run.end());
fprintf(stderr, "line break %u run(%u, %u) (%.2f, %.2f) (%.2f, %.2f)\n", run.lineIndex(), run.start(), run.end(), rect.x(), rect.y(), rect.width(), rect.height());
}
}
}
void paintFlow(const RenderBlockFlow& flow, const Layout& layout, PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (paintInfo.phase != PaintPhaseForeground)
return;
RenderStyle& style = flow.style();
if (style.visibility() != VISIBLE)
return;
RenderText& textRenderer = toRenderText(*flow.firstChild());
ASSERT(!textRenderer.firstTextBox());
bool debugBordersEnabled = flow.frame().settings().simpleLineLayoutDebugBordersEnabled();
GraphicsContext& context = *paintInfo.context;
const Font& font = style.font();
TextPaintStyle textPaintStyle = computeTextPaintStyle(textRenderer, style, paintInfo);
GraphicsContextStateSaver stateSaver(context, textPaintStyle.strokeWidth > 0);
updateGraphicsContext(context, textPaintStyle);
LayoutRect paintRect = paintInfo.rect;
paintRect.moveBy(-paintOffset);
auto resolver = runResolver(flow, layout);
auto range = resolver.rangeForRect(paintRect);
for (auto it = range.begin(), end = range.end(); it != end; ++it) {
const auto& run = *it;
if (!run.rect().intersects(paintRect))
continue;
TextRun textRun(run.text());
textRun.setTabSize(!style.collapseWhiteSpace(), style.tabSize());
FloatPoint textOrigin = run.baseline() + paintOffset;
textOrigin.setY(roundToDevicePixel(LayoutUnit(textOrigin.y()), flow.document().deviceScaleFactor()));
context.drawText(font, textRun, textOrigin);
if (debugBordersEnabled)
paintDebugBorders(context, run.rect(), paintOffset);
}
}
void paintFlow(const RenderBlockFlow& flow, const Layout& layout, PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (paintInfo.phase != PaintPhaseForeground)
return;
RenderStyle& style = flow.style();
if (style.visibility() != VISIBLE)
return;
bool debugBordersEnabled = flow.frame().settings().simpleLineLayoutDebugBordersEnabled();
GraphicsContext& context = paintInfo.context();
const FontCascade& font = style.fontCascade();
TextPaintStyle textPaintStyle = computeTextPaintStyle(flow.frame(), style, paintInfo);
GraphicsContextStateSaver stateSaver(context, textPaintStyle.strokeWidth > 0);
updateGraphicsContext(context, textPaintStyle);
LayoutRect paintRect = paintInfo.rect;
paintRect.moveBy(-paintOffset);
auto resolver = runResolver(flow, layout);
float strokeOverflow = ceilf(flow.style().textStrokeWidth());
float deviceScaleFactor = flow.document().deviceScaleFactor();
for (const auto& run : resolver.rangeForRect(paintRect)) {
FloatRect rect = run.rect();
rect.inflate(strokeOverflow);
if (!rect.intersects(paintRect) || run.start() == run.end())
continue;
TextRun textRun(run.text());
textRun.setTabSize(!style.collapseWhiteSpace(), style.tabSize());
// x position indicates the line offset from the rootbox. It's always 0 in case of simple line layout.
textRun.setXPos(0);
FloatPoint textOrigin = FloatPoint(rect.x() + paintOffset.x(), roundToDevicePixel(run.baselinePosition() + paintOffset.y(), deviceScaleFactor));
context.drawText(font, textRun, textOrigin);
if (debugBordersEnabled)
paintDebugBorders(context, LayoutRect(run.rect()), paintOffset);
}
}