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);
}
}
static inline void setStateScrollingNodeSnapOffsetsAsFloat(ScrollingStateScrollingNode& node, ScrollEventAxis axis, const Vector<LayoutUnit>& snapOffsets, float deviceScaleFactor)
{
// FIXME: Incorporate current page scale factor in snapping to device pixel. Perhaps we should just convert to float here and let UI process do the pixel snapping?
Vector<float> snapOffsetsAsFloat;
snapOffsetsAsFloat.reserveInitialCapacity(snapOffsets.size());
for (size_t i = 0; i < snapOffsets.size(); ++i)
snapOffsetsAsFloat.append(roundToDevicePixel(snapOffsets[i], deviceScaleFactor, false));
if (axis == ScrollEventAxis::Horizontal)
node.setHorizontalSnapOffsets(snapOffsetsAsFloat);
else
node.setVerticalSnapOffsets(snapOffsetsAsFloat);
}
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);
}
}