bool SVGInlineTextBox::acquirePaintingResource(GraphicsContext*& context, float scalingFactor, RenderObject* renderer, RenderStyle* style)
{
ASSERT(scalingFactor);
ASSERT(renderer);
ASSERT(style);
ASSERT(m_paintingResourceMode != ApplyToDefaultMode);
Color fallbackColor;
if (m_paintingResourceMode & ApplyToFillMode)
m_paintingResource = RenderSVGResource::fillPaintingResource(renderer, style, fallbackColor);
else if (m_paintingResourceMode & ApplyToStrokeMode)
m_paintingResource = RenderSVGResource::strokePaintingResource(renderer, style, fallbackColor);
else {
// We're either called for stroking or filling.
ASSERT_NOT_REACHED();
}
if (!m_paintingResource)
return false;
if (!m_paintingResource->applyResource(renderer, style, context, m_paintingResourceMode)) {
if (fallbackColor.isValid()) {
RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource();
fallbackResource->setColor(fallbackColor);
m_paintingResource = fallbackResource;
m_paintingResource->applyResource(renderer, style, context, m_paintingResourceMode);
}
}
if (scalingFactor != 1 && m_paintingResourceMode & ApplyToStrokeMode)
context->setStrokeThickness(context->strokeThickness() * scalingFactor);
return true;
}
void SVGTextRunRenderingContext::drawSVGGlyphs(GraphicsContext* context, const SimpleFontData* fontData, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const
{
auto activePaintingResource = this->activePaintingResource();
if (!activePaintingResource) {
// TODO: We're only supporting simple filled HTML text so far.
RenderSVGResourceSolidColor* solidPaintingResource = RenderSVGResource::sharedSolidPaintingResource();
solidPaintingResource->setColor(context->fillColor());
activePaintingResource = solidPaintingResource;
}
auto& elementRenderer = renderer().isRenderElement() ? toRenderElement(renderer()) : *renderer().parent();
RenderStyle& style = elementRenderer.style();
ASSERT(activePaintingResource);
RenderSVGResourceMode resourceMode = context->textDrawingMode() == TextModeStroke ? ApplyToStrokeMode : ApplyToFillMode;
auto translator(createGlyphToPathTranslator(*fontData, glyphBuffer, from, numGlyphs, point));
while (translator->containsMorePaths()) {
Path glyphPath = translator->nextPath();
if (activePaintingResource->applyResource(elementRenderer, style, context, resourceMode)) {
float strokeThickness = context->strokeThickness();
if (renderer().isSVGInlineText())
context->setStrokeThickness(strokeThickness * toRenderSVGInlineText(renderer()).scalingFactor());
activePaintingResource->postApplyResource(elementRenderer, context, resourceMode, &glyphPath, 0);
context->setStrokeThickness(strokeThickness);
}
}
}
RenderSVGResource* RenderSVGResource::strokePaintingResource(const RenderObject* object, const RenderStyle* style)
{
ASSERT(object);
ASSERT(style);
const SVGRenderStyle* svgStyle = style->svgStyle();
if (!svgStyle || !svgStyle->hasStroke())
return 0;
SVGPaint* strokePaint = svgStyle->strokePaint();
ASSERT(strokePaint);
RenderSVGResource* strokePaintingResource = 0;
FloatRect objectBoundingBox = object->objectBoundingBox();
SVGPaint::SVGPaintType paintType = strokePaint->paintType();
if (!objectBoundingBox.isEmpty()
&& (paintType == SVGPaint::SVG_PAINTTYPE_URI || paintType == SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR)) {
AtomicString id(SVGURIReference::getTarget(strokePaint->uri()));
strokePaintingResource = getRenderSVGResourceContainerById(object->document(), id);
if (!strokePaintingResource)
registerPendingResource(id, paintType, object);
}
if (paintType != SVGPaint::SVG_PAINTTYPE_URI && !strokePaintingResource) {
RenderSVGResourceSolidColor* solidResource = sharedSolidPaintingResource();
strokePaintingResource = solidResource;
Color strokeColor;
if (strokePaint->paintType() == SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR)
strokeColor = style->visitedDependentColor(CSSPropertyColor);
else
strokeColor = strokePaint->color();
adjustColorForPseudoRules(style, false /* useFillPaint */, strokeColor);
// FIXME: Ideally invalid colors would never get set on the RenderStyle and this could turn into an ASSERT
if (strokeColor.isValid())
solidResource->setColor(strokeColor);
else
strokePaintingResource = 0;
}
if (!strokePaintingResource) {
// default value (black), see bug 11017
RenderSVGResourceSolidColor* solidResource = sharedSolidPaintingResource();
solidResource->setColor(Color::black);
strokePaintingResource = solidResource;
}
return strokePaintingResource;
}
void RenderSVGShape::strokeShape(const RenderStyle& style, GraphicsContext& originalContext)
{
GraphicsContext* context = &originalContext;
Color fallbackColor;
if (RenderSVGResource* strokePaintingResource = RenderSVGResource::strokePaintingResource(*this, style, fallbackColor)) {
if (strokePaintingResource->applyResource(*this, style, context, ApplyToStrokeMode))
strokePaintingResource->postApplyResource(*this, context, ApplyToStrokeMode, 0, this);
else if (fallbackColor.isValid()) {
RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource();
fallbackResource->setColor(fallbackColor);
if (fallbackResource->applyResource(*this, style, context, ApplyToStrokeMode))
fallbackResource->postApplyResource(*this, context, ApplyToStrokeMode, 0, this);
}
}
}
// FIXME: This method and strokePaintingResource() should be refactored, to share even more code
RenderSVGResource* RenderSVGResource::fillPaintingResource(RenderObject* object, const RenderStyle* style)
{
ASSERT(object);
ASSERT(style);
const SVGRenderStyle* svgStyle = style->svgStyle();
if (!svgStyle || !svgStyle->hasFill())
return 0;
SVGPaint* fillPaint = svgStyle->fillPaint();
ASSERT(fillPaint);
RenderSVGResource* fillPaintingResource = 0;
SVGPaint::SVGPaintType paintType = fillPaint->paintType();
if (paintType == SVGPaint::SVG_PAINTTYPE_URI || paintType == SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR) {
if (SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object))
fillPaintingResource = resources->fill();
}
if (paintType != SVGPaint::SVG_PAINTTYPE_URI && !fillPaintingResource) {
RenderSVGResourceSolidColor* solidResource = sharedSolidPaintingResource();
fillPaintingResource = solidResource;
Color fillColor;
if (fillPaint->paintType() == SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR)
fillColor = style->visitedDependentColor(CSSPropertyColor);
else
fillColor = fillPaint->color();
adjustColorForPseudoRules(style, true /* useFillPaint */, fillColor);
// FIXME: Ideally invalid colors would never get set on the RenderStyle and this could turn into an ASSERT
if (fillColor.isValid())
solidResource->setColor(fillColor);
else
fillPaintingResource = 0;
}
if (!fillPaintingResource) {
// default value (black), see bug 11017
RenderSVGResourceSolidColor* solidResource = sharedSolidPaintingResource();
solidResource->setColor(Color::black);
fillPaintingResource = solidResource;
}
return fillPaintingResource;
}
void RenderSVGPath::fillAndStrokePath(GraphicsContext* context)
{
RenderStyle* style = this->style();
Color fallbackColor;
if (RenderSVGResource* fillPaintingResource = RenderSVGResource::fillPaintingResource(this, style, fallbackColor)) {
if (fillPaintingResource->applyResource(this, style, context, ApplyToFillMode))
fillPaintingResource->postApplyResource(this, context, ApplyToFillMode, &m_path);
else if (fallbackColor.isValid()) {
RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource();
fallbackResource->setColor(fallbackColor);
if (fallbackResource->applyResource(this, style, context, ApplyToFillMode))
fallbackResource->postApplyResource(this, context, ApplyToFillMode, &m_path);
}
}
fallbackColor = Color();
RenderSVGResource* strokePaintingResource = RenderSVGResource::strokePaintingResource(this, style, fallbackColor);
if (!strokePaintingResource)
return;
Path path;
bool nonScalingStroke = style->svgStyle()->vectorEffect() == VE_NON_SCALING_STROKE;
GraphicsContextStateSaver stateSaver(*context, false);
if (nonScalingStroke) {
SVGStyledTransformableElement* element = static_cast<SVGStyledTransformableElement*>(node());
AffineTransform nonScalingStrokeTransform = element->getScreenCTM(SVGLocatable::DisallowStyleUpdate);
if (!nonScalingStrokeTransform.isInvertible())
return;
path = m_path;
path.transform(nonScalingStrokeTransform);
stateSaver.save();
context->concatCTM(nonScalingStrokeTransform.inverse());
}
if (strokePaintingResource->applyResource(this, style, context, ApplyToStrokeMode))
strokePaintingResource->postApplyResource(this, context, ApplyToStrokeMode, nonScalingStroke ? &path : &m_path);
else if (fallbackColor.isValid()) {
RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource();
fallbackResource->setColor(fallbackColor);
if (fallbackResource->applyResource(this, style, context, ApplyToStrokeMode))
fallbackResource->postApplyResource(this, context, ApplyToStrokeMode, nonScalingStroke ? &path : &m_path);
}
}
static inline RenderSVGResource* requestPaintingResource(RenderSVGResourceMode mode, RenderObject* object, const RenderStyle* style, Color& fallbackColor)
{
ASSERT(object);
ASSERT(style);
// If we have no style at all, ignore it.
const SVGRenderStyle* svgStyle = style->svgStyle();
if (!svgStyle)
return 0;
// If we have no fill/stroke, return 0.
if (mode == ApplyToFillMode) {
if (!svgStyle->hasFill())
return 0;
} else {
if (!svgStyle->hasStroke())
return 0;
}
bool applyToFill = mode == ApplyToFillMode;
SVGPaint::SVGPaintType paintType = applyToFill ? svgStyle->fillPaintType() : svgStyle->strokePaintType();
if (paintType == SVGPaint::SVG_PAINTTYPE_NONE)
return 0;
Color color;
switch (paintType) {
case SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR:
case SVGPaint::SVG_PAINTTYPE_RGBCOLOR:
case SVGPaint::SVG_PAINTTYPE_RGBCOLOR_ICCCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_CURRENTCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR_ICCCOLOR:
color = applyToFill ? svgStyle->fillPaintColor() : svgStyle->strokePaintColor();
default:
break;
}
if (style->insideLink() == InsideVisitedLink) {
RenderStyle* visitedStyle = style->getCachedPseudoStyle(VISITED_LINK);
ASSERT(visitedStyle);
const SVGRenderStyle* svgVisitedStyle = visitedStyle->svgStyle();
SVGPaint::SVGPaintType visitedPaintType = applyToFill ? svgVisitedStyle->fillPaintType() : svgVisitedStyle->strokePaintType();
// For SVG_PAINTTYPE_CURRENTCOLOR, 'color' already contains the 'visitedColor'.
if (visitedPaintType < SVGPaint::SVG_PAINTTYPE_URI_NONE && visitedPaintType != SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR) {
const Color& visitedColor = applyToFill ? svgVisitedStyle->fillPaintColor() : svgVisitedStyle->strokePaintColor();
if (visitedColor.isValid())
color = Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), color.alpha());
}
}
// If the primary resource is just a color, return immediately.
RenderSVGResourceSolidColor* colorResource = RenderSVGResource::sharedSolidPaintingResource();
if (paintType < SVGPaint::SVG_PAINTTYPE_URI_NONE) {
// If an invalid fill color is specified, fallback to fill/stroke="none".
if (!color.isValid())
return 0;
colorResource->setColor(color);
return colorResource;
}
// If no resources are associated with the given renderer, return the color resource.
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (!resources) {
// If a paint server is specified, and no or an invalid fallback color is given, default to fill/stroke="black".
if (!color.isValid())
color = Color::black;
colorResource->setColor(color);
return colorResource;
}
// If the requested resource is not available, return the color resource.
RenderSVGResource* uriResource = mode == ApplyToFillMode ? resources->fill() : resources->stroke();
if (!uriResource) {
// If a paint server is specified, and no or an invalid fallback color is given, default to fill/stroke="black".
if (!color.isValid())
color = Color::black;
colorResource->setColor(color);
return colorResource;
}
// The paint server resource exists, though it may be invalid (pattern with width/height=0). Pass the fallback color to our caller
// so it can use the solid color painting resource, if applyResource() on the URI resource failed.
fallbackColor = color;
return uriResource;
}
void SVGTextRunRenderingContext::drawSVGGlyphs(GraphicsContext* context, const TextRun& run, const SimpleFontData* fontData, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const
{
SVGFontElement* fontElement = 0;
SVGFontFaceElement* fontFaceElement = 0;
const SVGFontData* svgFontData = svgFontAndFontFaceElementForFontData(fontData, fontFaceElement, fontElement);
if (!fontElement || !fontFaceElement)
return;
// We can only paint SVGFonts if a context is available.
RenderSVGResource* activePaintingResource = activePaintingResourceFromRun(run);
RenderObject* renderObject = renderObjectFromRun(run);
RenderObject* parentRenderObject = firstParentRendererForNonTextNode(renderObject);
RenderStyle* parentRenderObjectStyle = 0;
ASSERT(renderObject);
if (!activePaintingResource) {
// TODO: We're only supporting simple filled HTML text so far.
RenderSVGResourceSolidColor* solidPaintingResource = RenderSVGResource::sharedSolidPaintingResource();
solidPaintingResource->setColor(context->fillColor());
activePaintingResource = solidPaintingResource;
}
bool isVerticalText = false;
if (parentRenderObject) {
parentRenderObjectStyle = parentRenderObject->style();
ASSERT(parentRenderObjectStyle);
isVerticalText = parentRenderObjectStyle->svgStyle()->isVerticalWritingMode();
}
float scale = scaleEmToUnits(fontData->platformData().size(), fontFaceElement->unitsPerEm());
ASSERT(activePaintingResource);
FloatPoint glyphOrigin;
glyphOrigin.setX(svgFontData->horizontalOriginX() * scale);
glyphOrigin.setY(svgFontData->horizontalOriginY() * scale);
FloatPoint currentPoint = point;
RenderSVGResourceMode resourceMode = context->textDrawingMode() == TextModeStroke ? ApplyToStrokeMode : ApplyToFillMode;
for (int i = 0; i < numGlyphs; ++i) {
Glyph glyph = glyphBuffer.glyphAt(from + i);
if (!glyph)
continue;
float advance = glyphBuffer.advanceAt(from + i);
SVGGlyph svgGlyph = fontElement->svgGlyphForGlyph(glyph);
ASSERT(!svgGlyph.isPartOfLigature);
ASSERT(svgGlyph.tableEntry == glyph);
SVGGlyphElement::inheritUnspecifiedAttributes(svgGlyph, svgFontData);
// FIXME: Support arbitary SVG content as glyph (currently limited to <glyph d="..."> situations).
if (svgGlyph.pathData.isEmpty()) {
if (isVerticalText)
currentPoint.move(0, advance);
else
currentPoint.move(advance, 0);
continue;
}
context->save();
if (isVerticalText) {
glyphOrigin.setX(svgGlyph.verticalOriginX * scale);
glyphOrigin.setY(svgGlyph.verticalOriginY * scale);
}
AffineTransform glyphPathTransform;
glyphPathTransform.translate(currentPoint.x() + glyphOrigin.x(), currentPoint.y() + glyphOrigin.y());
glyphPathTransform.scale(scale, -scale);
Path glyphPath = svgGlyph.pathData;
glyphPath.transform(glyphPathTransform);
if (activePaintingResource->applyResource(parentRenderObject, parentRenderObjectStyle, context, resourceMode)) {
if (renderObject && renderObject->isSVGInlineText()) {
const RenderSVGInlineText* textRenderer = toRenderSVGInlineText(renderObject);
context->setStrokeThickness(context->strokeThickness() * textRenderer->scalingFactor());
}
activePaintingResource->postApplyResource(parentRenderObject, context, resourceMode, &glyphPath, 0);
}
context->restore();
if (isVerticalText)
currentPoint.move(0, advance);
else
currentPoint.move(advance, 0);
}
}
static inline RenderSVGResource* requestPaintingResource(RenderSVGResourceMode mode, RenderObject* object, const RenderStyle* style, Color& fallbackColor)
{
ASSERT(object);
ASSERT(style);
// If we have no style at all, ignore it.
const SVGRenderStyle* svgStyle = style->svgStyle();
if (!svgStyle)
return 0;
bool isRenderingMask = false;
if (object->frame() && object->frame()->view())
isRenderingMask = object->frame()->view()->paintBehavior() & PaintBehaviorRenderingSVGMask;
// If we have no fill/stroke, return 0.
if (mode == ApplyToFillMode) {
// When rendering the mask for a RenderSVGResourceClipper, always use the initial fill paint server, and ignore stroke.
if (isRenderingMask) {
RenderSVGResourceSolidColor* colorResource = RenderSVGResource::sharedSolidPaintingResource();
colorResource->setColor(SVGRenderStyle::initialFillPaintColor());
return colorResource;
}
if (!svgStyle->hasFill())
return 0;
} else {
if (!svgStyle->hasStroke() || isRenderingMask)
return 0;
}
bool applyToFill = mode == ApplyToFillMode;
SVGPaint::SVGPaintType paintType = applyToFill ? svgStyle->fillPaintType() : svgStyle->strokePaintType();
if (paintType == SVGPaint::SVG_PAINTTYPE_NONE)
return 0;
Color color;
switch (paintType) {
case SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR:
case SVGPaint::SVG_PAINTTYPE_RGBCOLOR:
case SVGPaint::SVG_PAINTTYPE_RGBCOLOR_ICCCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_CURRENTCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR:
case SVGPaint::SVG_PAINTTYPE_URI_RGBCOLOR_ICCCOLOR:
color = applyToFill ? svgStyle->fillPaintColor() : svgStyle->strokePaintColor();
default:
break;
}
if (style->insideLink() == InsideVisitedLink) {
// FIXME: This code doesn't support the uri component of the visited link paint, https://bugs.webkit.org/show_bug.cgi?id=70006
SVGPaint::SVGPaintType visitedPaintType = applyToFill ? svgStyle->visitedLinkFillPaintType() : svgStyle->visitedLinkStrokePaintType();
// For SVG_PAINTTYPE_CURRENTCOLOR, 'color' already contains the 'visitedColor'.
if (visitedPaintType < SVGPaint::SVG_PAINTTYPE_URI_NONE && visitedPaintType != SVGPaint::SVG_PAINTTYPE_CURRENTCOLOR) {
const Color& visitedColor = applyToFill ? svgStyle->visitedLinkFillPaintColor() : svgStyle->visitedLinkStrokePaintColor();
if (visitedColor.isValid())
color = Color(visitedColor.red(), visitedColor.green(), visitedColor.blue(), color.alpha());
}
}
// If the primary resource is just a color, return immediately.
RenderSVGResourceSolidColor* colorResource = RenderSVGResource::sharedSolidPaintingResource();
if (paintType < SVGPaint::SVG_PAINTTYPE_URI_NONE) {
if (!inheritColorFromParentStyleIfNeeded(object, applyToFill, color))
return 0;
colorResource->setColor(color);
return colorResource;
}
// If no resources are associated with the given renderer, return the color resource.
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (!resources) {
if (paintType == SVGPaint::SVG_PAINTTYPE_URI_NONE || !inheritColorFromParentStyleIfNeeded(object, applyToFill, color))
return 0;
colorResource->setColor(color);
return colorResource;
}
// If the requested resource is not available, return the color resource.
RenderSVGResource* uriResource = mode == ApplyToFillMode ? resources->fill() : resources->stroke();
if (!uriResource) {
if (!inheritColorFromParentStyleIfNeeded(object, applyToFill, color))
return 0;
colorResource->setColor(color);
return colorResource;
}
// The paint server resource exists, though it may be invalid (pattern with width/height=0). Pass the fallback color to our caller
// so it can use the solid color painting resource, if applyResource() on the URI resource failed.
fallbackColor = color;
return uriResource;
}
