static void paintFilteredContent(GraphicsContext& context,
const LayoutObject& object,
FilterData* filterData) {
if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(
context, object, DisplayItem::kSVGFilter))
return;
FloatRect filterBounds =
filterData ? filterData->lastEffect->getFilter()->filterRegion()
: FloatRect();
LayoutObjectDrawingRecorder recorder(context, object, DisplayItem::kSVGFilter,
filterBounds);
if (!filterData || filterData->m_state != FilterData::ReadyToPaint)
return;
DCHECK(filterData->lastEffect->getFilter()->getSourceGraphic());
filterData->m_state = FilterData::PaintingFilter;
FilterEffect* lastEffect = filterData->lastEffect;
sk_sp<SkImageFilter> imageFilter =
SkiaImageFilterBuilder::build(lastEffect, ColorSpaceDeviceRGB);
context.save();
// Clip drawing of filtered image to the minimum required paint rect.
context.clipRect(lastEffect->mapRect(object.strokeBoundingBox()));
context.beginLayer(1, SkBlendMode::kSrcOver, &filterBounds, ColorFilterNone,
std::move(imageFilter));
context.endLayer();
context.restore();
filterData->m_state = FilterData::ReadyToPaint;
}
void BeginFilterDisplayItem::replay(GraphicsContext& context) const
{
FloatRect imageFilterBounds(FloatPoint(), m_bounds.size());
context.save();
context.translate(m_bounds.x(), m_bounds.y());
context.beginLayer(1, SkXfermode::kSrcOver_Mode, &imageFilterBounds, ColorFilterNone, m_imageFilter.get());
context.translate(-m_bounds.x(), -m_bounds.y());
}
void InlinePainter::paintOutline(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
const ComputedStyle& styleToUse = m_layoutInline.styleRef();
if (!styleToUse.hasOutline())
return;
if (styleToUse.outlineStyleIsAuto()) {
if (!LayoutTheme::theme().shouldDrawDefaultFocusRing(&m_layoutInline))
return;
if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutInline, paintInfo.phase))
return;
Vector<LayoutRect> focusRingRects;
m_layoutInline.addOutlineRects(focusRingRects, paintOffset);
LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutInline, paintInfo.phase, outlinePaintRect(focusRingRects, LayoutPoint()));
// Only paint the focus ring by hand if the theme isn't able to draw the focus ring.
ObjectPainter(m_layoutInline).paintFocusRing(paintInfo, styleToUse, focusRingRects);
return;
}
if (styleToUse.outlineStyle() == BNONE)
return;
GraphicsContext* graphicsContext = paintInfo.context;
if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*graphicsContext, m_layoutInline, paintInfo.phase))
return;
Vector<LayoutRect> rects;
rects.append(LayoutRect());
for (InlineFlowBox* curr = m_layoutInline.firstLineBox(); curr; curr = curr->nextLineBox()) {
RootInlineBox& root = curr->root();
LayoutUnit top = std::max<LayoutUnit>(root.lineTop(), curr->logicalTop());
LayoutUnit bottom = std::min<LayoutUnit>(root.lineBottom(), curr->logicalBottom());
rects.append(LayoutRect(curr->x(), top, curr->logicalWidth(), bottom - top));
}
rects.append(LayoutRect());
Color outlineColor = m_layoutInline.resolveColor(styleToUse, CSSPropertyOutlineColor);
bool useTransparencyLayer = outlineColor.hasAlpha();
LayoutObjectDrawingRecorder recorder(*graphicsContext, m_layoutInline, paintInfo.phase, outlinePaintRect(rects, paintOffset));
if (useTransparencyLayer) {
graphicsContext->beginLayer(static_cast<float>(outlineColor.alpha()) / 255);
outlineColor = Color(outlineColor.red(), outlineColor.green(), outlineColor.blue());
}
for (unsigned i = 1; i < rects.size() - 1; i++)
paintOutlineForLine(graphicsContext, paintOffset, rects.at(i - 1), rects.at(i), rects.at(i + 1), outlineColor);
if (useTransparencyLayer)
graphicsContext->endLayer();
}
bool MediaControlsPainter::paintMediaSlider(const LayoutObject& object, const PaintInfo& paintInfo, const IntRect& rect)
{
const HTMLMediaElement* mediaElement = toParentMediaElement(object);
if (!mediaElement)
return false;
GraphicsContext* context = paintInfo.context;
// Should we paint the slider partially transparent?
bool drawUiGrayed = !hasSource(mediaElement) && RuntimeEnabledFeatures::newMediaPlaybackUiEnabled();
if (drawUiGrayed)
context->beginLayer(kDisabledAlpha);
paintMediaSliderInternal(object, paintInfo, rect);
if (drawUiGrayed)
context->endLayer();
return true;
}
static void paintFilteredContent(const LayoutObject& object, GraphicsContext& context, FilterData* filterData)
{
ASSERT(filterData->m_state == FilterData::ReadyToPaint);
ASSERT(filterData->filter->sourceGraphic());
filterData->m_state = FilterData::PaintingFilter;
SkiaImageFilterBuilder builder;
RefPtr<SkImageFilter> imageFilter = builder.build(filterData->filter->lastEffect(), ColorSpaceDeviceRGB);
FloatRect boundaries = filterData->filter->filterRegion();
context.save();
// Clip drawing of filtered image to the minimum required paint rect.
FilterEffect* lastEffect = filterData->filter->lastEffect();
context.clipRect(lastEffect->determineAbsolutePaintRect(lastEffect->maxEffectRect()));
#ifdef CHECK_CTM_FOR_TRANSFORMED_IMAGEFILTER
// TODO: Remove this workaround once skew/rotation support is added in Skia
// (https://code.google.com/p/skia/issues/detail?id=3288, crbug.com/446935).
// If the CTM contains rotation or shearing, apply the filter to
// the unsheared/unrotated matrix, and do the shearing/rotation
// as a final pass.
AffineTransform ctm = SVGLayoutSupport::deprecatedCalculateTransformToLayer(&object);
if (ctm.b() || ctm.c()) {
AffineTransform scaleAndTranslate;
scaleAndTranslate.translate(ctm.e(), ctm.f());
scaleAndTranslate.scale(ctm.xScale(), ctm.yScale());
ASSERT(scaleAndTranslate.isInvertible());
AffineTransform shearAndRotate = scaleAndTranslate.inverse();
shearAndRotate.multiply(ctm);
context.concatCTM(shearAndRotate.inverse());
imageFilter = builder.buildTransform(shearAndRotate, imageFilter.get());
}
#endif
context.beginLayer(1, SkXfermode::kSrcOver_Mode, &boundaries, ColorFilterNone, imageFilter.get());
context.endLayer();
context.restore();
filterData->m_state = FilterData::ReadyToPaint;
}
void BeginCompositingDisplayItem::replay(GraphicsContext& context) const
{
context.beginLayer(m_opacity, m_xferMode, m_hasBounds ? &m_bounds : nullptr, m_colorFilter);
}
