void RenderSVGShape::strokeShape(GraphicsContext* context) const
{
ASSERT(m_path);
Path* usePath = m_path.get();
if (hasNonScalingStroke())
usePath = nonScalingStrokePath(usePath, nonScalingStrokeTransform());
context->strokePath(*usePath);
}
void RenderSVGShape::strokeShape(GraphicsContext& context)
{
if (!style().svgStyle().hasVisibleStroke())
return;
GraphicsContextStateSaver stateSaver(context, false);
if (hasNonScalingStroke()) {
AffineTransform nonScalingTransform = nonScalingStrokeTransform();
if (!setupNonScalingStrokeContext(nonScalingTransform, stateSaver))
return;
}
strokeShape(style(), context);
}
bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point)
{
ASSERT(m_path);
BoundingRectStrokeStyleApplier applier(this, style());
if (hasNonScalingStroke()) {
AffineTransform nonScalingTransform = nonScalingStrokeTransform();
Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);
return usePath->strokeContains(&applier, nonScalingTransform.mapPoint(point));
}
return m_path->strokeContains(&applier, point);
}
bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point)
{
ASSERT(m_path);
StrokeData strokeData;
SVGRenderSupport::applyStrokeStyleToStrokeData(&strokeData, style(), this);
if (hasNonScalingStroke()) {
AffineTransform nonScalingTransform = nonScalingStrokeTransform();
Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);
return usePath->strokeContains(nonScalingTransform.mapPoint(point), strokeData);
}
return m_path->strokeContains(point, strokeData);
}
void LayoutSVGRect::updateShapeFromElement()
{
m_usePathFallback = false;
// Fallback to LayoutSVGShape and path-based hit detection if the rect
// has rounded corners or a non-scaling or non-simple stroke.
SVGLengthContext lengthContext(toSVGRectElement(element()));
if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
|| lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
|| hasNonScalingStroke()
|| !definitelyHasSimpleStroke(style()->svgStyle())) {
LayoutSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
}
clearPath();
}
void LayoutSVGRect::updateShapeFromElement()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_fillBoundingBox = FloatRect();
m_strokeBoundingBox = FloatRect();
m_usePathFallback = false;
SVGRectElement* rect = toSVGRectElement(element());
ASSERT(rect);
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(
lengthContext.valueForLength(styleRef().width(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().height(), styleRef(), SVGLengthMode::Height));
// Spec: "A negative value is an error."
if (boundingBoxSize.width() < 0 || boundingBoxSize.height() < 0)
return;
// Spec: "A value of zero disables rendering of the element."
if (!boundingBoxSize.isEmpty()) {
// Fallback to LayoutSVGShape and path-based hit detection if the rect
// has rounded corners or a non-scaling or non-simple stroke.
if (lengthContext.valueForLength(styleRef().svgStyle().rx(), styleRef(), SVGLengthMode::Width) > 0
|| lengthContext.valueForLength(styleRef().svgStyle().ry(), styleRef(), SVGLengthMode::Height) > 0
|| hasNonScalingStroke()
|| !definitelyHasSimpleStroke()) {
LayoutSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
}
}
m_fillBoundingBox = FloatRect(
FloatPoint(
lengthContext.valueForLength(styleRef().svgStyle().x(), styleRef(), SVGLengthMode::Width),
lengthContext.valueForLength(styleRef().svgStyle().y(), styleRef(), SVGLengthMode::Height)),
boundingBoxSize);
m_strokeBoundingBox = m_fillBoundingBox;
if (style()->svgStyle().hasStroke())
m_strokeBoundingBox.inflate(strokeWidth() / 2);
}
FloatRect LayoutSVGShape::calculateStrokeBoundingBox() const
{
ASSERT(m_path);
FloatRect strokeBoundingBox = m_fillBoundingBox;
if (style()->svgStyle().hasStroke()) {
StrokeData strokeData;
SVGLayoutSupport::applyStrokeStyleToStrokeData(strokeData, styleRef(), *this);
if (hasNonScalingStroke()) {
AffineTransform nonScalingTransform = nonScalingStrokeTransform();
if (nonScalingTransform.isInvertible()) {
Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform);
FloatRect strokeBoundingRect = usePath->strokeBoundingRect(strokeData);
strokeBoundingRect = nonScalingTransform.inverse().mapRect(strokeBoundingRect);
strokeBoundingBox.unite(strokeBoundingRect);
}
} else {
strokeBoundingBox.unite(path().strokeBoundingRect(strokeData));
}
}
return strokeBoundingBox;
}
void RenderSVGRect::updateShapeFromElement()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_fillBoundingBox = FloatRect();
m_innerStrokeRect = FloatRect();
m_outerStrokeRect = FloatRect();
// Fallback to RenderSVGShape if rect has rounded corners or a non-scaling stroke.
if (rectElement().hasAttribute(SVGNames::rxAttr) || rectElement().hasAttribute(SVGNames::ryAttr) || hasNonScalingStroke()) {
RenderSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
} else
m_usePathFallback = false;
SVGLengthContext lengthContext(&rectElement());
FloatSize boundingBoxSize(rectElement().width().value(lengthContext), rectElement().height().value(lengthContext));
if (boundingBoxSize.isEmpty())
return;
m_fillBoundingBox = FloatRect(FloatPoint(rectElement().x().value(lengthContext), rectElement().y().value(lengthContext)), boundingBoxSize);
// To decide if the stroke contains a point we create two rects which represent the inner and
// the outer stroke borders. A stroke contains the point, if the point is between them.
m_innerStrokeRect = m_fillBoundingBox;
m_outerStrokeRect = m_fillBoundingBox;
if (style()->svgStyle()->hasStroke()) {
float strokeWidth = this->strokeWidth();
m_innerStrokeRect.inflate(-strokeWidth / 2);
m_outerStrokeRect.inflate(strokeWidth / 2);
}
m_strokeBoundingBox = m_outerStrokeRect;
#if USE(CG)
// CoreGraphics can inflate the stroke by 1px when drawing a rectangle with antialiasing disabled at non-integer coordinates, we need to compensate.
if (style()->svgStyle()->shapeRendering() == SR_CRISPEDGES)
m_strokeBoundingBox.inflate(1);
#endif
}
void RenderSVGRect::updateShapeFromElement()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_fillBoundingBox = FloatRect();
m_innerStrokeRect = FloatRect();
m_outerStrokeRect = FloatRect();
SVGLengthContext lengthContext(&rectElement());
FloatSize boundingBoxSize(lengthContext.valueForLength(style().width(), LengthModeWidth), lengthContext.valueForLength(style().height(), LengthModeHeight));
// Element is invalid if either dimension is negative.
if (boundingBoxSize.width() < 0 || boundingBoxSize.height() < 0)
return;
// Rendering enabled? Spec: "A value of zero disables rendering of the element."
if (!boundingBoxSize.isEmpty()) {
if (rectElement().rx().value(lengthContext) > 0 || rectElement().ry().value(lengthContext) > 0 || hasNonScalingStroke()) {
// Fall back to RenderSVGShape
RenderSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
}
m_usePathFallback = false;
}
m_fillBoundingBox = FloatRect(FloatPoint(lengthContext.valueForLength(style().svgStyle().x(), LengthModeWidth),
lengthContext.valueForLength(style().svgStyle().y(), LengthModeHeight)),
boundingBoxSize);
// To decide if the stroke contains a point we create two rects which represent the inner and
// the outer stroke borders. A stroke contains the point, if the point is between them.
m_innerStrokeRect = m_fillBoundingBox;
m_outerStrokeRect = m_fillBoundingBox;
if (style().svgStyle().hasStroke()) {
float strokeWidth = this->strokeWidth();
m_innerStrokeRect.inflate(-strokeWidth / 2);
m_outerStrokeRect.inflate(strokeWidth / 2);
}
m_strokeBoundingBox = m_outerStrokeRect;
#if USE(CG)
// CoreGraphics can inflate the stroke by 1px when drawing a rectangle with antialiasing disabled at non-integer coordinates, we need to compensate.
if (style().svgStyle().shapeRendering() == SR_CRISPEDGES)
m_strokeBoundingBox.inflate(1);
#endif
}
