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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef SVGClipPainter_h |
| 6 #define SVGClipPainter_h |
| 7 |
| 8 #include "platform/geometry/FloatRect.h" |
| 9 #include "platform/graphics/paint/DisplayItem.h" |
| 10 |
| 11 namespace blink { |
| 12 |
| 13 class AffineTransform; |
| 14 class GraphicsContext; |
| 15 class LayoutObject; |
| 16 class LayoutSVGResourceClipper; |
| 17 |
| 18 class SVGClipPainter { |
| 19 public: |
| 20 enum ClipperState { |
| 21 ClipperNotApplied, |
| 22 ClipperAppliedPath, |
| 23 ClipperAppliedMask |
| 24 }; |
| 25 |
| 26 SVGClipPainter(LayoutSVGResourceClipper& clip) : m_clip(clip) { } |
| 27 |
| 28 // FIXME: Filters are also stateful resources that could benefit from having
their state managed |
| 29 // on the caller stack instead of the current hashmap. We should look
at refactoring these |
| 30 // into a general interface that can be shared. |
| 31 bool applyStatefulResource(LayoutObject*, GraphicsContext*, ClipperState&); |
| 32 void postApplyStatefulResource(LayoutObject*, GraphicsContext*, ClipperState
&); |
| 33 |
| 34 // clipPath can be clipped too, but don't have a boundingBox or paintInvalid
ationRect. So we can't call |
| 35 // applyResource directly and use the rects from the object, since they are
empty for LayoutSVGResources |
| 36 // FIXME: We made applyClippingToContext public because we cannot call apply
Resource on HTML elements (it asserts on LayoutObject::objectBoundingBox) |
| 37 bool applyClippingToContext(LayoutObject*, const FloatRect&, const FloatRect
&, GraphicsContext*, ClipperState&); |
| 38 |
| 39 private: |
| 40 void drawClipMaskContent(GraphicsContext*, DisplayItemClient, const FloatRec
t&); |
| 41 |
| 42 LayoutSVGResourceClipper& m_clip; |
| 43 }; |
| 44 |
| 45 } // namespace blink |
| 46 |
| 47 #endif // SVGShapePainter_h |
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