void LayoutSVGRect::updateStrokeAndFillBoundingBoxes()
{
SVGLengthContext lengthContext(toSVGRectElement(element()));
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) {
m_fillBoundingBox = FloatRect();
m_strokeBoundingBox = FloatRect();
return;
}
if (m_usePathFallback) {
// Spec: "A value of zero disables rendering of the element." so we can skip
// the path fallback and rely on the existing bounding box calculation.
if (!boundingBoxSize.isEmpty()) {
LayoutSVGShape::updateStrokeAndFillBoundingBoxes();
return;
}
m_usePathFallback = false;
clearPath();
}
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);
}
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
}
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();
SVGRectElement* rect = static_cast<SVGRectElement*>(node());
ASSERT(rect);
// Fallback to RenderSVGShape if rect has rounded corners or a non-scaling stroke.
if (rect->hasAttribute(SVGNames::rxAttr) || rect->hasAttribute(SVGNames::ryAttr) || hasNonScalingStroke()) {
RenderSVGShape::updateShapeFromElement();
m_usePathFallback = true;
return;
} else
m_usePathFallback = false;
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(rect->width().value(lengthContext), rect->height().value(lengthContext));
if (boundingBoxSize.isEmpty())
return;
m_fillBoundingBox = FloatRect(FloatPoint(rect->x().value(lengthContext), rect->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 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);
}
void RenderSVGRect::createShape()
{
// Before creating a new object we need to clear the cached bounding box
// to avoid using garbage.
m_boundingBox = FloatRect();
m_innerStrokeRect = FloatRect();
m_outerStrokeRect = FloatRect();
SVGRectElement* rect = static_cast<SVGRectElement*>(node());
ASSERT(rect);
bool nonScalingStroke = style()->svgStyle()->vectorEffect() == VE_NON_SCALING_STROKE;
// Fallback to RenderSVGShape if rect has rounded corners.
if (rect->hasAttribute(SVGNames::rxAttr) || rect->hasAttribute(SVGNames::ryAttr) || nonScalingStroke) {
RenderSVGShape::createShape();
setIsPaintingFallback(true);
return;
}
SVGLengthContext lengthContext(rect);
FloatSize boundingBoxSize(rect->width().value(lengthContext), rect->height().value(lengthContext));
if (boundingBoxSize.isEmpty())
return;
m_boundingBox = FloatRect(FloatPoint(rect->x().value(lengthContext), rect->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_boundingBox;
m_outerStrokeRect = m_boundingBox;
if (style()->svgStyle()->hasStroke()) {
float strokeWidth = this->strokeWidth();
m_innerStrokeRect.inflate(-strokeWidth / 2);
m_outerStrokeRect.inflate(strokeWidth / 2);
}
}
