FloatSize SVGSVGElement::currentViewportSize() const
{
if (hasIntrinsicWidth() && hasIntrinsicHeight())
return FloatSize(floatValueForLength(intrinsicWidth(), 0), floatValueForLength(intrinsicHeight(), 0));
if (!renderer())
return { };
if (is<RenderSVGRoot>(*renderer())) {
auto& root = downcast<RenderSVGRoot>(*renderer());
return root.contentBoxRect().size() / root.style().effectiveZoom();
}
return downcast<RenderSVGViewportContainer>(*renderer()).viewport().size();
}
FloatSize SVGSVGElement::currentViewportSize() const
{
if (hasIntrinsicWidth() && hasIntrinsicHeight()) {
Length intrinsicWidth = this->intrinsicWidth();
Length intrinsicHeight = this->intrinsicHeight();
return FloatSize(floatValueForLength(intrinsicWidth, 0), floatValueForLength(intrinsicHeight, 0));
}
if (!renderer())
return FloatSize();
if (is<RenderSVGRoot>(*renderer())) {
LayoutRect contentBoxRect = downcast<RenderSVGRoot>(*renderer()).contentBoxRect();
return FloatSize(contentBoxRect.width() / renderer()->style().effectiveZoom(), contentBoxRect.height() / renderer()->style().effectiveZoom());
}
FloatRect viewportRect = downcast<RenderSVGViewportContainer>(*renderer()).viewport();
return FloatSize(viewportRect.width(), viewportRect.height());
}
FloatRect SVGSVGElement::currentViewBoxRect() const {
if (m_viewSpec)
return m_viewSpec->viewBox()->value();
FloatRect useViewBox = viewBox()->currentValue()->value();
if (!useViewBox.isEmpty())
return useViewBox;
if (!shouldSynthesizeViewBox())
return FloatRect();
// If no viewBox is specified but non-relative width/height values, then we
// should always synthesize a viewBox if we're embedded through a SVGImage.
FloatSize synthesizedViewBoxSize(intrinsicWidth(), intrinsicHeight());
if (!hasIntrinsicWidth())
synthesizedViewBoxSize.setWidth(width()->currentValue()->scaleByPercentage(
currentViewportSize().width()));
if (!hasIntrinsicHeight())
synthesizedViewBoxSize.setHeight(
height()->currentValue()->scaleByPercentage(
currentViewportSize().height()));
return FloatRect(FloatPoint(), synthesizedViewBoxSize);
}