1 /* 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following 13 * disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 20 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 27 * OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef RectangleShape_h 31 #define RectangleShape_h 32 33 #include "core/platform/graphics/FloatPoint.h" 34 #include "core/platform/graphics/FloatRect.h" 35 #include "core/platform/graphics/FloatSize.h" 36 #include "core/rendering/shapes/Shape.h" 37 #include "wtf/Assertions.h" 38 #include "wtf/Vector.h" 39 40 namespace WebCore { 41 42 class FloatRoundedRect : public FloatRect { 43 public: 44 FloatRoundedRect() { } 45 FloatRoundedRect(const FloatRect& bounds, const FloatSize& radii) 46 : FloatRect(bounds) 47 , m_radii(radii) 48 { 49 } 50 51 float rx() const { return m_radii.width(); } 52 float ry() const { return m_radii.height(); } 53 FloatRoundedRect marginBounds(float margin) const; 54 FloatRoundedRect paddingBounds(float padding) const; 55 FloatPoint cornerInterceptForWidth(float width) const; 56 57 private: 58 FloatSize m_radii; 59 }; 60 61 class RectangleShape : public Shape { 62 public: 63 RectangleShape(const FloatRect& bounds, const FloatSize& radii) 64 : Shape() 65 , m_bounds(bounds, radii) 66 , m_haveInitializedMarginBounds(false) 67 , m_haveInitializedPaddingBounds(false) 68 { 69 } 70 71 virtual LayoutRect shapeMarginLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(shapeMarginBounds()); } 72 virtual LayoutRect shapePaddingLogicalBoundingBox() const OVERRIDE { return static_cast<LayoutRect>(shapePaddingBounds()); } 73 virtual bool isEmpty() const OVERRIDE { return m_bounds.isEmpty(); } 74 virtual void getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE; 75 virtual void getIncludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList&) const OVERRIDE; 76 virtual bool firstIncludedIntervalLogicalTop(LayoutUnit minLogicalIntervalTop, const LayoutSize& minLogicalIntervalSize, LayoutUnit&) const OVERRIDE; 77 78 private: 79 FloatRoundedRect shapeMarginBounds() const; 80 FloatRoundedRect shapePaddingBounds() const; 81 82 FloatRoundedRect m_bounds; 83 mutable FloatRoundedRect m_marginBounds; 84 mutable FloatRoundedRect m_paddingBounds; 85 mutable bool m_haveInitializedMarginBounds : 1; 86 mutable bool m_haveInitializedPaddingBounds : 1; 87 }; 88 89 } // namespace WebCore 90 91 #endif // RectangleShape_h 92
