| /* |
| * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef RasterShape_h |
| #define RasterShape_h |
| |
| #include "core/platform/graphics/FloatRect.h" |
| #include "core/platform/graphics/Region.h" |
| #include "core/rendering/shapes/Shape.h" |
| #include "wtf/Assertions.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| class RasterShapeIntervals { |
| public: |
| RasterShapeIntervals() { } |
| |
| IntRect bounds() const; |
| bool isEmpty() const { return m_region.isEmpty(); } |
| void addInterval(int y, int x1, int x2); |
| void getIncludedIntervals(int y1, int y2, SegmentList&) const; |
| void getExcludedIntervals(int y1, int y2, SegmentList&) const; |
| bool firstIncludedIntervalY(int minY, const IntSize& minIntervalSize, LayoutUnit&) const; |
| |
| private: |
| Region m_region; |
| mutable OwnPtr<IntRect> m_bounds; // Cached value of m_region.bounds(). |
| }; |
| |
| class RasterShape : public Shape { |
| WTF_MAKE_NONCOPYABLE(RasterShape); |
| public: |
| RasterShape(PassOwnPtr<RasterShapeIntervals> intervals) |
| : Shape() |
| , m_intervals(intervals) |
| { |
| } |
| |
| virtual LayoutRect shapeMarginLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(marginIntervals().bounds()); } |
| virtual LayoutRect shapePaddingLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(paddingIntervals().bounds()); } |
| virtual bool isEmpty() const OVERRIDE { return m_intervals->isEmpty(); } |
| virtual void getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE; |
| virtual void getIncludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE; |
| virtual bool firstIncludedIntervalLogicalTop(LayoutUnit minLogicalIntervalTop, const LayoutSize& minLogicalIntervalSize, LayoutUnit&) const OVERRIDE; |
| |
| private: |
| const RasterShapeIntervals& marginIntervals() const; |
| const RasterShapeIntervals& paddingIntervals() const; |
| |
| OwnPtr<RasterShapeIntervals> m_intervals; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // RasterShape_h |