RenderSVGViewportContainer.cpp [plain text]
#include "config.h"
#if ENABLE(SVG)
#include "RenderSVGViewportContainer.h"
#include "GraphicsContext.h"
#include "RenderView.h"
#include "SVGMarkerElement.h"
#include "SVGSVGElement.h"
namespace WebCore {
RenderSVGViewportContainer::RenderSVGViewportContainer(SVGStyledElement* node)
: RenderSVGContainer(node)
{
}
RenderSVGViewportContainer::~RenderSVGViewportContainer()
{
}
void RenderSVGViewportContainer::paint(PaintInfo& paintInfo, int parentX, int parentY)
{
if (!viewport().isEmpty() && (viewport().width() <= 0. || viewport().height() <= 0.))
return;
RenderSVGContainer::paint(paintInfo, parentX, parentY);
}
void RenderSVGViewportContainer::applyViewportClip(PaintInfo& paintInfo)
{
if (style()->overflowX() != OVISIBLE)
paintInfo.context->clip(enclosingIntRect(viewport())); }
FloatRect RenderSVGViewportContainer::viewport() const
{
return m_viewport;
}
void RenderSVGViewportContainer::calcViewport()
{
SVGElement* svgelem = static_cast<SVGElement*>(node());
if (svgelem->hasTagName(SVGNames::svgTag)) {
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
if (!selfNeedsLayout() && !svg->hasRelativeValues())
return;
float x = svg->x().value(svg);
float y = svg->y().value(svg);
float w = svg->width().value(svg);
float h = svg->height().value(svg);
m_viewport = FloatRect(x, y, w, h);
} else if (svgelem->hasTagName(SVGNames::markerTag)) {
if (!selfNeedsLayout())
return;
SVGMarkerElement* svg = static_cast<SVGMarkerElement*>(node());
float w = svg->markerWidth().value(svg);
float h = svg->markerHeight().value(svg);
m_viewport = FloatRect(0, 0, w, h);
}
}
TransformationMatrix RenderSVGViewportContainer::viewportTransform() const
{
if (node()->hasTagName(SVGNames::svgTag)) {
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
return svg->viewBoxToViewTransform(viewport().width(), viewport().height());
} else if (node()->hasTagName(SVGNames::markerTag)) {
SVGMarkerElement* marker = static_cast<SVGMarkerElement*>(node());
return marker->viewBoxToViewTransform(viewport().width(), viewport().height());
}
return TransformationMatrix();
}
TransformationMatrix RenderSVGViewportContainer::localToParentTransform() const
{
TransformationMatrix viewportTranslation;
viewportTranslation.translate(viewport().x(), viewport().y());
return viewportTransform() * viewportTranslation;
}
TransformationMatrix RenderSVGViewportContainer::absoluteTransform() const
{
return localToParentTransform() * RenderSVGContainer::absoluteTransform();
}
bool RenderSVGViewportContainer::pointIsInsideViewportClip(const FloatPoint& pointInParent)
{
if (style()->overflowX() == OHIDDEN) {
ASSERT(style()->overflowY() == OHIDDEN);
if (!viewport().contains(pointInParent))
return false;
}
return true;
}
}
#endif // ENABLE(SVG)