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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, 2014 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 "LengthSize.h"
#include "RenderStyleConstants.h"
#include "StyleImage.h"
#include <wtf/RefPtr.h>
namespace WebCore {
class RenderElement;
struct FillSize {
FillSize()
: type(SizeLength)
{
}
FillSize(EFillSizeType type, const LengthSize& size)
: type(type)
, size(size)
{
}
EFillSizeType type;
LengthSize size;
};
inline bool operator==(const FillSize& a, const FillSize& b)
{
return a.type == b.type && a.size == b.size;
}
inline bool operator!=(const FillSize& a, const FillSize& b)
{
return !(a == b);
}
class FillLayer {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit FillLayer(EFillLayerType);
~FillLayer();
StyleImage* image() const { return m_image.get(); }
const Length& xPosition() const { return m_xPosition; }
const Length& yPosition() const { return m_yPosition; }
Edge backgroundXOrigin() const { return static_cast<Edge>(m_backgroundXOrigin); }
Edge backgroundYOrigin() const { return static_cast<Edge>(m_backgroundYOrigin); }
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 repeatX() const { return static_cast<EFillRepeat>(m_repeatX); }
EFillRepeat repeatY() const { return static_cast<EFillRepeat>(m_repeatY); }
CompositeOperator composite() const { return static_cast<CompositeOperator>(m_composite); }
BlendMode blendMode() const { return static_cast<BlendMode>(m_blendMode); }
const LengthSize& sizeLength() const { return m_sizeLength; }
EFillSizeType sizeType() const { return static_cast<EFillSizeType>(m_sizeType); }
FillSize size() const { return FillSize(static_cast<EFillSizeType>(m_sizeType), m_sizeLength); }
EMaskSourceType maskSourceType() const { return static_cast<EMaskSourceType>(m_maskSourceType); }
const FillLayer* next() const { return m_next.get(); }
FillLayer* next() { return m_next.get(); }
bool isImageSet() const { return m_imageSet; }
bool isXPositionSet() const { return m_xPosSet; }
bool isYPositionSet() const { return m_yPosSet; }
bool isBackgroundOriginSet() const { return m_backgroundOriginSet; }
bool isAttachmentSet() const { return m_attachmentSet; }
bool isClipSet() const { return m_clipSet; }
bool isOriginSet() const { return m_originSet; }
bool isRepeatXSet() const { return m_repeatXSet; }
bool isRepeatYSet() const { return m_repeatYSet; }
bool isCompositeSet() const { return m_compositeSet; }
bool isBlendModeSet() const { return m_blendModeSet; }
bool isSizeSet() const { return m_sizeType != SizeNone; }
bool isMaskSourceTypeSet() const { return m_maskSourceTypeSet; }
void setImage(PassRefPtr<StyleImage> image) { m_image = image; m_imageSet = true; }
void setXPosition(Length length) { m_xPosition = WTFMove(length); m_xPosSet = true; }
void setYPosition(Length length) { m_yPosition = WTFMove(length); m_yPosSet = true; }
void setBackgroundXOrigin(Edge o) { m_backgroundXOrigin = static_cast<unsigned>(o); m_backgroundOriginSet = true; }
void setBackgroundYOrigin(Edge o) { m_backgroundYOrigin = static_cast<unsigned>(o); m_backgroundOriginSet = 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 setRepeatX(EFillRepeat r) { m_repeatX = r; m_repeatXSet = true; }
void setRepeatY(EFillRepeat r) { m_repeatY = r; m_repeatYSet = true; }
void setComposite(CompositeOperator c) { m_composite = c; m_compositeSet = true; }
void setBlendMode(BlendMode b) { m_blendMode = b; m_blendModeSet = true; }
void setSizeType(EFillSizeType b) { m_sizeType = b; }
void setSizeLength(LengthSize l) { m_sizeLength = l; }
void setSize(FillSize f) { m_sizeType = f.type; m_sizeLength = f.size; }
void setMaskSourceType(EMaskSourceType m) { m_maskSourceType = m; m_maskSourceTypeSet = true; }
void clearImage() { m_image = nullptr; m_imageSet = false; }
void clearXPosition() { m_xPosSet = false; m_backgroundOriginSet = false; }
void clearYPosition() { m_yPosSet = false; m_backgroundOriginSet = false; }
void clearAttachment() { m_attachmentSet = false; }
void clearClip() { m_clipSet = false; }
void clearOrigin() { m_originSet = false; }
void clearRepeatX() { m_repeatXSet = false; }
void clearRepeatY() { m_repeatYSet = false; }
void clearComposite() { m_compositeSet = false; }
void clearBlendMode() { m_blendModeSet = false; }
void clearSize() { m_sizeType = SizeNone; }
void clearMaskSourceType() { m_maskSourceTypeSet = false; }
void setNext(std::unique_ptr<FillLayer> next) { m_next = WTFMove(next); }
FillLayer& operator=(const FillLayer&);
FillLayer(const FillLayer&);
bool operator==(const FillLayer&) const;
bool operator!=(const FillLayer& other) const { return !(*this == other); }
bool containsImage(StyleImage&) const;
bool imagesAreLoaded() const;
bool hasImage() const;
bool hasFixedImage() const;
bool hasOpaqueImage(const RenderElement&) const;
bool hasRepeatXY() const;
bool clipOccludesNextLayers(bool firstLayer) const;
EFillLayerType type() const { return static_cast<EFillLayerType>(m_type); }
void fillUnsetProperties();
void cullEmptyLayers();
static bool imagesIdentical(const FillLayer*, const FillLayer*);
static EFillAttachment initialFillAttachment(EFillLayerType) { return ScrollBackgroundAttachment; }
static EFillBox initialFillClip(EFillLayerType) { return BorderFillBox; }
static EFillBox initialFillOrigin(EFillLayerType type) { return type == BackgroundFillLayer ? PaddingFillBox : BorderFillBox; }
static EFillRepeat initialFillRepeatX(EFillLayerType) { return RepeatFill; }
static EFillRepeat initialFillRepeatY(EFillLayerType) { return RepeatFill; }
static CompositeOperator initialFillComposite(EFillLayerType) { return CompositeSourceOver; }
static BlendMode initialFillBlendMode(EFillLayerType) { return BlendModeNormal; }
static FillSize initialFillSize(EFillLayerType) { return FillSize(); }
static Length initialFillXPosition(EFillLayerType) { return Length(0.0f, Percent); }
static Length initialFillYPosition(EFillLayerType) { return Length(0.0f, Percent); }
static StyleImage* initialFillImage(EFillLayerType) { return nullptr; }
static EMaskSourceType initialFillMaskSourceType(EFillLayerType) { return MaskAlpha; }
private:
friend class RenderStyle;
void computeClipMax() const;
std::unique_ptr<FillLayer> m_next;
RefPtr<StyleImage> m_image;
Length m_xPosition;
Length m_yPosition;
LengthSize m_sizeLength;
unsigned m_attachment : 2; // EFillAttachment
unsigned m_clip : 2; // EFillBox
unsigned m_origin : 2; // EFillBox
unsigned m_repeatX : 3; // EFillRepeat
unsigned m_repeatY : 3; // EFillRepeat
unsigned m_composite : 4; // CompositeOperator
unsigned m_sizeType : 2; // EFillSizeType
unsigned m_blendMode : 5; // BlendMode
unsigned m_maskSourceType : 1; // EMaskSourceType
unsigned m_imageSet : 1;
unsigned m_attachmentSet : 1;
unsigned m_clipSet : 1;
unsigned m_originSet : 1;
unsigned m_repeatXSet : 1;
unsigned m_repeatYSet : 1;
unsigned m_xPosSet : 1;
unsigned m_yPosSet : 1;
unsigned m_backgroundOriginSet : 1;
unsigned m_backgroundXOrigin : 2; // Edge
unsigned m_backgroundYOrigin : 2; // Edge
unsigned m_compositeSet : 1;
unsigned m_blendModeSet : 1;
unsigned m_maskSourceTypeSet : 1;
unsigned m_type : 1; // EFillLayerType
mutable unsigned m_clipMax : 2; // EFillBox, maximum m_clip value from this to bottom layer
};
TextStream& operator<<(TextStream&, FillSize);
TextStream& operator<<(TextStream&, const FillLayer&);
} // namespace WebCore
#endif // FillLayer_h
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