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 SkSVGDevice::AutoElement::addClipResources(const SkDraw& draw, Resources* resources) {
SkASSERT(!draw.fClipStack->isWideOpen());
SkPath clipPath;
(void) draw.fClipStack->asPath(&clipPath);
SkString clipID = fResourceBucket->addClip();
const char* clipRule = clipPath.getFillType() == SkPath::kEvenOdd_FillType ?
"evenodd" : "nonzero";
{
// clipPath is in device space, but since we're only pushing transform attributes
// to the leaf nodes, so are all our elements => SVG userSpaceOnUse == device space.
AutoElement clipPathElement("clipPath", fWriter);
clipPathElement.addAttribute("id", clipID);
SkRect clipRect = SkRect::MakeEmpty();
if (clipPath.isEmpty() || clipPath.isRect(&clipRect)) {
AutoElement rectElement("rect", fWriter);
rectElement.addRectAttributes(clipRect);
rectElement.addAttribute("clip-rule", clipRule);
} else {
AutoElement pathElement("path", fWriter);
pathElement.addPathAttributes(clipPath);
pathElement.addAttribute("clip-rule", clipRule);
}
}
resources->fClip.printf("url(#%s)", clipID.c_str());
}
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
}
