bool RenderSVGResourcePattern::applyResource(RenderObject* object, RenderStyle* style, GraphicsContext*& context, unsigned short resourceMode)
{
ASSERT(object);
ASSERT(style);
ASSERT(context);
ASSERT(resourceMode != ApplyToDefaultMode);
clearInvalidationMask();
// Spec: When the geometry of the applicable element has no width or height and objectBoundingBox is specified,
// then the given effect (e.g. a gradient or a filter) will be ignored.
FloatRect objectBoundingBox = object->objectBoundingBox();
if (m_attributes.patternUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX && objectBoundingBox.isEmpty())
return false;
PatternData* patternData = buildPattern(object, resourceMode);
if (!patternData)
return false;
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
AffineTransform computedPatternSpaceTransform = computeResourceSpaceTransform(object, patternData->transform, svgStyle, resourceMode);
patternData->pattern->setPatternSpaceTransform(computedPatternSpaceTransform);
// Draw pattern
context->save();
if (resourceMode & ApplyToFillMode) {
context->setAlphaAsFloat(svgStyle->fillOpacity());
context->setFillPattern(patternData->pattern);
context->setFillRule(svgStyle->fillRule());
} else if (resourceMode & ApplyToStrokeMode) {
context->setAlphaAsFloat(svgStyle->strokeOpacity());
context->setStrokePattern(patternData->pattern);
SVGRenderSupport::applyStrokeStyleToContext(context, style, object);
}
if (resourceMode & ApplyToTextMode) {
if (resourceMode & ApplyToFillMode)
context->setTextDrawingMode(TextModeFill);
else if (resourceMode & ApplyToStrokeMode)
context->setTextDrawingMode(TextModeStroke);
}
return true;
}
bool RenderSVGResourceGradient::applyResource(RenderObject* object, RenderStyle* style, GraphicsContext*& context, unsigned short resourceMode)
{
ASSERT(object);
ASSERT(style);
ASSERT(context);
ASSERT(resourceMode != ApplyToDefaultMode);
clearInvalidationMask();
// Be sure to synchronize all SVG properties on the gradientElement _before_ processing any further.
// Otherwhise the call to collectGradientAttributes() in createTileImage(), may cause the SVG DOM property
// synchronization to kick in, which causes removeAllClientsFromCache() to be called, which in turn deletes our
// GradientData object! Leaving out the line below will cause svg/dynamic-updates/SVG*GradientElement-svgdom* to crash.
SVGGradientElement* gradientElement = toSVGGradientElement(element());
if (!gradientElement)
return false;
if (m_shouldCollectGradientAttributes) {
gradientElement->synchronizeAnimatedSVGAttribute(anyQName());
if (!collectGradientAttributes(gradientElement))
return false;
m_shouldCollectGradientAttributes = false;
}
// Spec: When the geometry of the applicable element has no width or height and objectBoundingBox is specified,
// then the given effect (e.g. a gradient or a filter) will be ignored.
FloatRect objectBoundingBox = object->objectBoundingBox();
if (gradientUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX && objectBoundingBox.isEmpty())
return false;
OwnPtr<GradientData>& gradientData = m_gradientMap.add(object, nullptr).storedValue->value;
if (!gradientData)
gradientData = adoptPtr(new GradientData);
// Create gradient object
if (!gradientData->gradient) {
buildGradient(gradientData.get());
// We want the text bounding box applied to the gradient space transform now, so the gradient shader can use it.
if (gradientUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX && !objectBoundingBox.isEmpty()) {
gradientData->userspaceTransform.translate(objectBoundingBox.x(), objectBoundingBox.y());
gradientData->userspaceTransform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
}
AffineTransform gradientTransform;
calculateGradientTransform(gradientTransform);
gradientData->userspaceTransform *= gradientTransform;
}
if (!gradientData->gradient)
return false;
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
AffineTransform computedGradientSpaceTransform = computeResourceSpaceTransform(object, gradientData->userspaceTransform, svgStyle, resourceMode);
gradientData->gradient->setGradientSpaceTransform(computedGradientSpaceTransform);
// Draw gradient
context->save();
if (resourceMode & ApplyToTextMode)
context->setTextDrawingMode(resourceMode & ApplyToFillMode ? TextModeFill : TextModeStroke);
if (resourceMode & ApplyToFillMode) {
context->setAlphaAsFloat(svgStyle->fillOpacity());
context->setFillGradient(gradientData->gradient);
context->setFillRule(svgStyle->fillRule());
} else if (resourceMode & ApplyToStrokeMode) {
context->setAlphaAsFloat(svgStyle->strokeOpacity());
context->setStrokeGradient(gradientData->gradient);
SVGRenderSupport::applyStrokeStyleToContext(context, style, object);
}
return true;
}
