Index: third_party/WebKit/Source/platform/graphics/paint/CullRect.h |
diff --git a/third_party/WebKit/Source/platform/graphics/paint/CullRect.h b/third_party/WebKit/Source/platform/graphics/paint/CullRect.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..6b9702b50767dd75c015387fb36b906617539117 |
--- /dev/null |
+++ b/third_party/WebKit/Source/platform/graphics/paint/CullRect.h |
@@ -0,0 +1,58 @@ |
+// Copyright 2015 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. |
+ |
+#ifndef CullRect_h |
+#define CullRect_h |
+ |
+#include "platform/geometry/IntRect.h" |
+#include "platform/transforms/AffineTransform.h" |
+#include "wtf/Allocator.h" |
+#include "wtf/HashMap.h" |
+#include "wtf/ListHashSet.h" |
+ |
+#include <limits> |
+ |
+namespace blink { |
+ |
+class FloatRect; |
+class LayoutBoxModelObject; |
+class LayoutInline; |
+class LayoutObject; |
+class LayoutRect; |
+class LayoutUnit; |
+class PaintInvalidationState; |
+ |
+class PLATFORM_EXPORT CullRect { |
+public: |
+ explicit CullRect(const IntRect& rect) : m_rect(rect) { } |
+ CullRect(const CullRect&, const IntPoint& offset); |
+ CullRect(const CullRect&, const IntSize& offset); |
+ |
+ bool intersectsCullRect(const AffineTransform&, const FloatRect& boundingBox) const; |
+ void updateCullRect(const AffineTransform& localToParentTransform); |
+ bool intersectsCullRect(const IntRect&) const; |
+ bool intersectsCullRect(const LayoutRect&) const; |
+ bool intersectsHorizontalRange(LayoutUnit lo, LayoutUnit hi) const; |
+ bool intersectsVerticalRange(LayoutUnit lo, LayoutUnit hi) const; |
+ |
+private: |
+ IntRect m_rect; |
+ |
+ // TODO(chrishtr): temporary while we implement CullRect everywhere. |
+ friend class FramePainter; |
+ friend class GridPainter; |
+ friend class SVGInlineTextBoxPainter; |
+ friend class ScrollbarThemeMacNonOverlayAPI; |
+ friend class ReplicaPainter; |
+ friend class SVGPaintContext; |
+ friend class SVGRootInlineBoxPainter; |
+ friend class SVGShapePainter; |
+ friend class TableSectionPainter; |
+ friend class ThemePainterMac; |
+ friend class WebPluginContainerImpl; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // CullRect_h |