1 files changed, 66 insertions, 0 deletions
diff --git a/Source/WebCore/rendering/RenderSVGTransformableContainer.cpp b/Source/WebCore/rendering/RenderSVGTransformableContainer.cpp
new file mode 100644
index 0000000..3c91170
--- /dev/null
+++ b/Source/WebCore/rendering/RenderSVGTransformableContainer.cpp
@@ -0,0 +1,66 @@
+/*
+    Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2006 Rob Buis <buis@kde.org>
+                  2009 Google, Inc.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "RenderSVGTransformableContainer.h"
+
+#include "SVGNames.h"
+#include "SVGShadowTreeElements.h"
+#include "SVGStyledTransformableElement.h"
+
+namespace WebCore {
+    
+RenderSVGTransformableContainer::RenderSVGTransformableContainer(SVGStyledTransformableElement* node)
+    : RenderSVGContainer(node)
+    , m_needsTransformUpdate(true)
+{
+}
+
+bool RenderSVGTransformableContainer::calculateLocalTransform()
+{
+    SVGStyledTransformableElement* element = static_cast<SVGStyledTransformableElement*>(node());
+
+    bool needsUpdate = m_needsTransformUpdate;
+    if (needsUpdate) {
+        m_localTransform = element->animatedLocalTransform();
+        m_needsTransformUpdate = false;
+    }
+
+    if (!element->hasTagName(SVGNames::gTag) || !static_cast<SVGGElement*>(element)->isShadowTreeContainerElement())
+        return needsUpdate;
+
+    FloatSize translation = static_cast<SVGShadowTreeContainerElement*>(element)->containerTranslation();
+    if (translation.width() == 0 && translation.height() == 0)
+        return needsUpdate;
+
+    // FIXME: Could optimize this case for use to avoid refetching the animatedLocalTransform() here, if only the containerTranslation() changed.
+    if (!needsUpdate)
+        m_localTransform = element->animatedLocalTransform();
+
+    m_localTransform.translate(translation.width(), translation.height());
+    return true;
+}
+
+}
+
+#endif // ENABLE(SVG)