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 HOLDER "AS IS" AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef ShapeValue_h 31 #define ShapeValue_h 32 33 #include "core/fetch/ImageResource.h" 34 #include "core/rendering/style/BasicShapes.h" 35 #include "core/rendering/style/RenderStyleConstants.h" 36 #include "core/rendering/style/StyleImage.h" 37 #include "wtf/PassRefPtr.h" 38 39 namespace WebCore { 40 41 class ShapeValue : public RefCounted<ShapeValue> { 42 public: 43 enum ShapeValueType { 44 // The Auto value is defined by a null ShapeValue* 45 Shape, 46 Box, 47 Image 48 }; 49 createShapeValue(PassRefPtr<BasicShape> shape,CSSBoxType cssBox)50 static PassRefPtr<ShapeValue> createShapeValue(PassRefPtr<BasicShape> shape, CSSBoxType cssBox) 51 { 52 return adoptRef(new ShapeValue(shape, cssBox)); 53 } 54 createBoxShapeValue(CSSBoxType cssBox)55 static PassRefPtr<ShapeValue> createBoxShapeValue(CSSBoxType cssBox) 56 { 57 return adoptRef(new ShapeValue(cssBox)); 58 } 59 createImageValue(PassRefPtr<StyleImage> image)60 static PassRefPtr<ShapeValue> createImageValue(PassRefPtr<StyleImage> image) 61 { 62 return adoptRef(new ShapeValue(image)); 63 } 64 type()65 ShapeValueType type() const { return m_type; } shape()66 BasicShape* shape() const { return m_shape.get(); } 67 image()68 StyleImage* image() const { return m_image.get(); } isImageValid()69 bool isImageValid() const 70 { 71 if (!image()) 72 return false; 73 if (image()->isImageResource() || image()->isImageResourceSet()) 74 return image()->cachedImage() && image()->cachedImage()->hasImage(); 75 return image()->isGeneratedImage(); 76 } setImage(PassRefPtr<StyleImage> image)77 void setImage(PassRefPtr<StyleImage> image) 78 { 79 ASSERT(type() == Image); 80 if (m_image != image) 81 m_image = image; 82 } cssBox()83 CSSBoxType cssBox() const { return m_cssBox; } 84 85 bool operator==(const ShapeValue& other) const; 86 87 private: ShapeValue(PassRefPtr<BasicShape> shape,CSSBoxType cssBox)88 ShapeValue(PassRefPtr<BasicShape> shape, CSSBoxType cssBox) 89 : m_type(Shape) 90 , m_shape(shape) 91 , m_cssBox(cssBox) 92 { 93 } ShapeValue(ShapeValueType type)94 ShapeValue(ShapeValueType type) 95 : m_type(type) 96 , m_cssBox(BoxMissing) 97 { 98 } ShapeValue(PassRefPtr<StyleImage> image)99 ShapeValue(PassRefPtr<StyleImage> image) 100 : m_type(Image) 101 , m_image(image) 102 , m_cssBox(ContentBox) 103 { 104 } ShapeValue(CSSBoxType cssBox)105 ShapeValue(CSSBoxType cssBox) 106 : m_type(Box) 107 , m_cssBox(cssBox) 108 { 109 } 110 111 112 ShapeValueType m_type; 113 RefPtr<BasicShape> m_shape; 114 RefPtr<StyleImage> m_image; 115 CSSBoxType m_cssBox; 116 }; 117 118 inline bool ShapeValue::operator==(const ShapeValue& other) const 119 { 120 if (type() != other.type()) 121 return false; 122 123 switch (type()) { 124 case Shape: 125 return shape() == other.shape() && cssBox() == other.cssBox(); 126 case Box: 127 return cssBox() == other.cssBox(); 128 case Image: 129 return image() == other.image(); 130 } 131 132 ASSERT_NOT_REACHED(); 133 return false; 134 } 135 136 } 137 138 #endif 139