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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef FillLayer_h
#define FillLayer_h
#include "GraphicsTypes.h"
#include "Length.h"
#include "LengthSize.h"
#include "RenderStyleConstants.h"
#include "StyleImage.h"
#include <wtf/RefPtr.h>
namespace WebCore {
struct FillLayer {
public:
FillLayer(EFillLayerType);
~FillLayer();
StyleImage* image() const { return m_image.get(); }
Length xPosition() const { return m_xPosition; }
Length yPosition() const { return m_yPosition; }
EFillAttachment attachment() const { return static_cast<EFillAttachment>(m_attachment); }
EFillBox clip() const { return static_cast<EFillBox>(m_clip); }
EFillBox origin() const { return static_cast<EFillBox>(m_origin); }
EFillRepeat repeat() const { return static_cast<EFillRepeat>(m_repeat); }
CompositeOperator composite() const { return static_cast<CompositeOperator>(m_composite); }
LengthSize size() const { return m_size; }
const FillLayer* next() const { return m_next; }
FillLayer* next() { return m_next; }
bool isImageSet() const { return m_imageSet; }
bool isXPositionSet() const { return m_xPosSet; }
bool isYPositionSet() const { return m_yPosSet; }
bool isAttachmentSet() const { return m_attachmentSet; }
bool isClipSet() const { return m_clipSet; }
bool isOriginSet() const { return m_originSet; }
bool isRepeatSet() const { return m_repeatSet; }
bool isCompositeSet() const { return m_compositeSet; }
bool isSizeSet() const { return m_sizeSet; }
void setImage(StyleImage* i) { m_image = i; m_imageSet = true; }
void setXPosition(const Length& l) { m_xPosition = l; m_xPosSet = true; }
void setYPosition(const Length& l) { m_yPosition = l; m_yPosSet = true; }
void setAttachment(EFillAttachment attachment) { m_attachment = attachment; m_attachmentSet = true; }
void setClip(EFillBox b) { m_clip = b; m_clipSet = true; }
void setOrigin(EFillBox b) { m_origin = b; m_originSet = true; }
void setRepeat(EFillRepeat r) { m_repeat = r; m_repeatSet = true; }
void setComposite(CompositeOperator c) { m_composite = c; m_compositeSet = true; }
void setSize(const LengthSize& b) { m_size = b; m_sizeSet = true; }
void clearImage() { m_imageSet = false; }
void clearXPosition() { m_xPosSet = false; }
void clearYPosition() { m_yPosSet = false; }
void clearAttachment() { m_attachmentSet = false; }
void clearClip() { m_clipSet = false; }
void clearOrigin() { m_originSet = false; }
void clearRepeat() { m_repeatSet = false; }
void clearComposite() { m_compositeSet = false; }
void clearSize() { m_sizeSet = false; }
void setNext(FillLayer* n) { if (m_next != n) { delete m_next; m_next = n; } }
FillLayer& operator=(const FillLayer& o);
FillLayer(const FillLayer& o);
bool operator==(const FillLayer& o) const;
bool operator!=(const FillLayer& o) const
{
return !(*this == o);
}
bool containsImage(StyleImage*) const;
bool hasImage() const
{
if (m_image)
return true;
return m_next ? m_next->hasImage() : false;
}
bool hasFixedImage() const
{
if (m_image && m_attachment == FixedBackgroundAttachment)
return true;
return m_next ? m_next->hasFixedImage() : false;
}
EFillLayerType type() const { return static_cast<EFillLayerType>(m_type); }
void fillUnsetProperties();
void cullEmptyLayers();
static EFillAttachment initialFillAttachment(EFillLayerType) { return ScrollBackgroundAttachment; }
static EFillBox initialFillClip(EFillLayerType) { return BorderFillBox; }
static EFillBox initialFillOrigin(EFillLayerType type) { return type == BackgroundFillLayer ? PaddingFillBox : BorderFillBox; }
static EFillRepeat initialFillRepeat(EFillLayerType) { return RepeatFill; }
static CompositeOperator initialFillComposite(EFillLayerType) { return CompositeSourceOver; }
static LengthSize initialFillSize(EFillLayerType) { return LengthSize(); }
static Length initialFillXPosition(EFillLayerType) { return Length(0.0, Percent); }
static Length initialFillYPosition(EFillLayerType) { return Length(0.0, Percent); }
static StyleImage* initialFillImage(EFillLayerType) { return 0; }
private:
FillLayer() { }
public:
RefPtr<StyleImage> m_image;
Length m_xPosition;
Length m_yPosition;
unsigned m_attachment : 2; // EFillAttachment
unsigned m_clip : 2; // EFillBox
unsigned m_origin : 2; // EFillBox
unsigned m_repeat : 2; // EFillRepeat
unsigned m_composite : 4; // CompositeOperator
LengthSize m_size;
bool m_imageSet : 1;
bool m_attachmentSet : 1;
bool m_clipSet : 1;
bool m_originSet : 1;
bool m_repeatSet : 1;
bool m_xPosSet : 1;
bool m_yPosSet : 1;
bool m_compositeSet : 1;
bool m_sizeSet : 1;
unsigned m_type : 1; // EFillLayerType
FillLayer* m_next;
};
} // namespace WebCore
#endif // FillLayer_h
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