1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Dirk Mueller (mueller@kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25 #ifndef FillLayer_h 26 #define FillLayer_h 27 28 #include "GraphicsTypes.h" 29 #include "Length.h" 30 #include "LengthSize.h" 31 #include "RenderStyleConstants.h" 32 #include "StyleImage.h" 33 #include <wtf/RefPtr.h> 34 35 namespace WebCore { 36 37 struct FillLayer { 38 public: 39 FillLayer(EFillLayerType); 40 ~FillLayer(); 41 imageFillLayer42 StyleImage* image() const { return m_image.get(); } xPositionFillLayer43 Length xPosition() const { return m_xPosition; } yPositionFillLayer44 Length yPosition() const { return m_yPosition; } attachmentFillLayer45 EFillAttachment attachment() const { return static_cast<EFillAttachment>(m_attachment); } clipFillLayer46 EFillBox clip() const { return static_cast<EFillBox>(m_clip); } originFillLayer47 EFillBox origin() const { return static_cast<EFillBox>(m_origin); } repeatFillLayer48 EFillRepeat repeat() const { return static_cast<EFillRepeat>(m_repeat); } compositeFillLayer49 CompositeOperator composite() const { return static_cast<CompositeOperator>(m_composite); } sizeFillLayer50 LengthSize size() const { return m_size; } 51 nextFillLayer52 const FillLayer* next() const { return m_next; } nextFillLayer53 FillLayer* next() { return m_next; } 54 isImageSetFillLayer55 bool isImageSet() const { return m_imageSet; } isXPositionSetFillLayer56 bool isXPositionSet() const { return m_xPosSet; } isYPositionSetFillLayer57 bool isYPositionSet() const { return m_yPosSet; } isAttachmentSetFillLayer58 bool isAttachmentSet() const { return m_attachmentSet; } isClipSetFillLayer59 bool isClipSet() const { return m_clipSet; } isOriginSetFillLayer60 bool isOriginSet() const { return m_originSet; } isRepeatSetFillLayer61 bool isRepeatSet() const { return m_repeatSet; } isCompositeSetFillLayer62 bool isCompositeSet() const { return m_compositeSet; } isSizeSetFillLayer63 bool isSizeSet() const { return m_sizeSet; } 64 setImageFillLayer65 void setImage(StyleImage* i) { m_image = i; m_imageSet = true; } setXPositionFillLayer66 void setXPosition(const Length& l) { m_xPosition = l; m_xPosSet = true; } setYPositionFillLayer67 void setYPosition(const Length& l) { m_yPosition = l; m_yPosSet = true; } setAttachmentFillLayer68 void setAttachment(EFillAttachment attachment) { m_attachment = attachment; m_attachmentSet = true; } setClipFillLayer69 void setClip(EFillBox b) { m_clip = b; m_clipSet = true; } setOriginFillLayer70 void setOrigin(EFillBox b) { m_origin = b; m_originSet = true; } setRepeatFillLayer71 void setRepeat(EFillRepeat r) { m_repeat = r; m_repeatSet = true; } setCompositeFillLayer72 void setComposite(CompositeOperator c) { m_composite = c; m_compositeSet = true; } setSizeFillLayer73 void setSize(const LengthSize& b) { m_size = b; m_sizeSet = true; } 74 clearImageFillLayer75 void clearImage() { m_imageSet = false; } clearXPositionFillLayer76 void clearXPosition() { m_xPosSet = false; } clearYPositionFillLayer77 void clearYPosition() { m_yPosSet = false; } clearAttachmentFillLayer78 void clearAttachment() { m_attachmentSet = false; } clearClipFillLayer79 void clearClip() { m_clipSet = false; } clearOriginFillLayer80 void clearOrigin() { m_originSet = false; } clearRepeatFillLayer81 void clearRepeat() { m_repeatSet = false; } clearCompositeFillLayer82 void clearComposite() { m_compositeSet = false; } clearSizeFillLayer83 void clearSize() { m_sizeSet = false; } 84 setNextFillLayer85 void setNext(FillLayer* n) { if (m_next != n) { delete m_next; m_next = n; } } 86 87 FillLayer& operator=(const FillLayer& o); 88 FillLayer(const FillLayer& o); 89 90 bool operator==(const FillLayer& o) const; 91 bool operator!=(const FillLayer& o) const 92 { 93 return !(*this == o); 94 } 95 96 bool containsImage(StyleImage*) const; 97 hasImageFillLayer98 bool hasImage() const 99 { 100 if (m_image) 101 return true; 102 return m_next ? m_next->hasImage() : false; 103 } 104 hasFixedImageFillLayer105 bool hasFixedImage() const 106 { 107 if (m_image && m_attachment == FixedBackgroundAttachment) 108 return true; 109 return m_next ? m_next->hasFixedImage() : false; 110 } 111 typeFillLayer112 EFillLayerType type() const { return static_cast<EFillLayerType>(m_type); } 113 114 void fillUnsetProperties(); 115 void cullEmptyLayers(); 116 initialFillAttachmentFillLayer117 static EFillAttachment initialFillAttachment(EFillLayerType) { return ScrollBackgroundAttachment; } initialFillClipFillLayer118 static EFillBox initialFillClip(EFillLayerType) { return BorderFillBox; } initialFillOriginFillLayer119 static EFillBox initialFillOrigin(EFillLayerType type) { return type == BackgroundFillLayer ? PaddingFillBox : BorderFillBox; } initialFillRepeatFillLayer120 static EFillRepeat initialFillRepeat(EFillLayerType) { return RepeatFill; } initialFillCompositeFillLayer121 static CompositeOperator initialFillComposite(EFillLayerType) { return CompositeSourceOver; } initialFillSizeFillLayer122 static LengthSize initialFillSize(EFillLayerType) { return LengthSize(); } initialFillXPositionFillLayer123 static Length initialFillXPosition(EFillLayerType) { return Length(0.0, Percent); } initialFillYPositionFillLayer124 static Length initialFillYPosition(EFillLayerType) { return Length(0.0, Percent); } initialFillImageFillLayer125 static StyleImage* initialFillImage(EFillLayerType) { return 0; } 126 127 private: FillLayerFillLayer128 FillLayer() { } 129 130 public: 131 RefPtr<StyleImage> m_image; 132 133 Length m_xPosition; 134 Length m_yPosition; 135 136 unsigned m_attachment : 2; // EFillAttachment 137 unsigned m_clip : 2; // EFillBox 138 unsigned m_origin : 2; // EFillBox 139 unsigned m_repeat : 2; // EFillRepeat 140 unsigned m_composite : 4; // CompositeOperator 141 142 LengthSize m_size; 143 144 bool m_imageSet : 1; 145 bool m_attachmentSet : 1; 146 bool m_clipSet : 1; 147 bool m_originSet : 1; 148 bool m_repeatSet : 1; 149 bool m_xPosSet : 1; 150 bool m_yPosSet : 1; 151 bool m_compositeSet : 1; 152 bool m_sizeSet : 1; 153 154 unsigned m_type : 1; // EFillLayerType 155 156 FillLayer* m_next; 157 }; 158 159 } // namespace WebCore 160 161 #endif // FillLayer_h 162