bool SVGRenderSupport::transformToRootChanged(RenderObject* ancestor)
{
while (ancestor && !ancestor->isSVGRoot()) {
if (ancestor->isSVGTransformableContainer())
return toRenderSVGContainer(ancestor)->didTransformToRootUpdate();
if (ancestor->isSVGViewportContainer())
return toRenderSVGViewportContainer(ancestor)->didTransformToRootUpdate();
ancestor = ancestor->parent();
}
return false;
}
inline bool SVGRenderSupport::layoutSizeOfNearestViewportChanged(const RenderObject* start)
{
while (start && !start->isSVGRoot() && !start->isSVGViewportContainer())
start = start->parent();
ASSERT(start);
ASSERT(start->isSVGRoot() || start->isSVGViewportContainer());
if (start->isSVGViewportContainer())
return toRenderSVGViewportContainer(start)->isLayoutSizeChanged();
return toRenderSVGRoot(start)->isLayoutSizeChanged();
}
static inline bool layoutSizeOfNearestViewportChanged(const RenderElement& renderer)
{
const RenderElement* start = &renderer;
while (start && !start->isSVGRoot() && !start->isSVGViewportContainer())
start = start->parent();
ASSERT(start);
ASSERT(start->isSVGRoot() || start->isSVGViewportContainer());
if (start->isSVGViewportContainer())
return toRenderSVGViewportContainer(start)->isLayoutSizeChanged();
return toRenderSVGRoot(start)->isLayoutSizeChanged();
}
FloatSize SVGSVGElement::currentViewportSize() const
{
Length intrinsicWidth = this->intrinsicWidth();
Length intrinsicHeight = this->intrinsicHeight();
if (intrinsicWidth.isFixed() && intrinsicHeight.isFixed())
return FloatSize(intrinsicWidth.calcFloatValue(0), intrinsicHeight.calcFloatValue(0));
if (!renderer())
return FloatSize();
if (renderer()->isSVGRoot()) {
LayoutRect frameRect = toRenderSVGRoot(renderer())->frameRect();
return FloatSize(frameRect.width() / renderer()->style()->effectiveZoom(), frameRect.height() / renderer()->style()->effectiveZoom());
}
FloatRect frameRect = toRenderSVGViewportContainer(renderer())->viewport();
return FloatSize(frameRect.width() / renderer()->style()->effectiveZoom(), frameRect.height() / renderer()->style()->effectiveZoom());
}
FloatSize SVGSVGElement::currentViewportSize() const
{
Length intrinsicWidth = this->intrinsicWidth();
Length intrinsicHeight = this->intrinsicHeight();
if (intrinsicWidth.isFixed() && intrinsicHeight.isFixed())
return FloatSize(floatValueForLength(intrinsicWidth, 0), floatValueForLength(intrinsicHeight, 0));
if (!renderer())
return FloatSize();
if (renderer()->isSVGRoot()) {
LayoutRect contentBoxRect = toRenderSVGRoot(renderer())->contentBoxRect();
return FloatSize(contentBoxRect.width() / renderer()->style()->effectiveZoom(), contentBoxRect.height() / renderer()->style()->effectiveZoom());
}
FloatRect viewportRect = toRenderSVGViewportContainer(renderer())->viewport();
return FloatSize(viewportRect.width() / renderer()->style()->effectiveZoom(), viewportRect.height() / renderer()->style()->effectiveZoom());
}
