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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/paint/SVGContainerPainter.h"
#include "core/paint/FloatClipRecorder.h"
#include "core/paint/GraphicsContextAnnotator.h"
#include "core/paint/ObjectPainter.h"
#include "core/paint/TransformRecorder.h"
#include "core/rendering/PaintInfo.h"
#include "core/rendering/svg/RenderSVGContainer.h"
#include "core/rendering/svg/RenderSVGViewportContainer.h"
#include "core/rendering/svg/SVGRenderSupport.h"
#include "core/rendering/svg/SVGRenderingContext.h"
#include "core/svg/SVGSVGElement.h"
namespace blink {
void SVGContainerPainter::paint(const PaintInfo& paintInfo)
{
ANNOTATE_GRAPHICS_CONTEXT(paintInfo, &m_renderSVGContainer);
// Spec: groups w/o children still may render filter content.
if (!m_renderSVGContainer.firstChild() && !m_renderSVGContainer.selfWillPaint())
return;
// Spec: An empty viewBox on the <svg> element disables rendering.
ASSERT(m_renderSVGContainer.element());
if (isSVGSVGElement(*m_renderSVGContainer.element()) && toSVGSVGElement(*m_renderSVGContainer.element()).hasEmptyViewBox())
return;
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
{
OwnPtr<FloatClipRecorder> clipRecorder;
if (m_renderSVGContainer.isSVGViewportContainer() && SVGRenderSupport::isOverflowHidden(&m_renderSVGContainer))
clipRecorder = adoptPtr(new FloatClipRecorder(*childPaintInfo.context, m_renderSVGContainer.displayItemClient(), childPaintInfo.phase, toRenderSVGViewportContainer(m_renderSVGContainer).viewport()));
TransformRecorder transformRecorder(*childPaintInfo.context, m_renderSVGContainer.displayItemClient(), m_renderSVGContainer.localToParentTransform());
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(&m_renderSVGContainer, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering) {
childPaintInfo.updatePaintingRootForChildren(&m_renderSVGContainer);
for (RenderObject* child = m_renderSVGContainer.firstChild(); child; child = child->nextSibling())
child->paint(childPaintInfo, IntPoint());
}
}
childPaintInfo.context->restore();
// FIXME: This really should be drawn from local coordinates, but currently we hack it
// to avoid our clip killing our outline rect. Thus we translate our
// outline rect into parent coords before drawing.
// FIXME: This means our focus ring won't share our rotation like it should.
// We should instead disable our clip during PaintPhaseOutline
if (paintInfo.phase == PaintPhaseForeground && m_renderSVGContainer.style()->outlineWidth() && m_renderSVGContainer.style()->visibility() == VISIBLE) {
IntRect paintRectInParent = enclosingIntRect(m_renderSVGContainer.localToParentTransform().mapRect(m_renderSVGContainer.paintInvalidationRectInLocalCoordinates()));
ObjectPainter(m_renderSVGContainer).paintOutline(paintInfo, paintRectInParent);
}
}
} // namespace blink
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