mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
248 lines
9.9 KiB
C++
248 lines
9.9 KiB
C++
/*
|
|
* 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 "core/rendering/style/RenderStyleConstants.h"
|
|
#include "core/rendering/style/StyleImage.h"
|
|
#include "platform/Length.h"
|
|
#include "platform/LengthSize.h"
|
|
#include "platform/graphics/GraphicsTypes.h"
|
|
#include "wtf/RefPtr.h"
|
|
|
|
namespace blink {
|
|
|
|
struct FillSize {
|
|
FillSize()
|
|
: type(SizeLength)
|
|
{
|
|
}
|
|
|
|
FillSize(EFillSizeType t, const LengthSize& l)
|
|
: type(t)
|
|
, size(l)
|
|
{
|
|
}
|
|
|
|
bool operator==(const FillSize& o) const
|
|
{
|
|
return type == o.type && size == o.size;
|
|
}
|
|
bool operator!=(const FillSize& o) const
|
|
{
|
|
return !(*this == o);
|
|
}
|
|
|
|
EFillSizeType type;
|
|
LengthSize size;
|
|
};
|
|
|
|
class FillLayer {
|
|
WTF_MAKE_FAST_ALLOCATED;
|
|
public:
|
|
FillLayer(EFillLayerType, bool useInitialValues = false);
|
|
~FillLayer();
|
|
|
|
StyleImage* image() const { return m_image.get(); }
|
|
const Length& xPosition() const { return m_xPosition; }
|
|
const Length& yPosition() const { return m_yPosition; }
|
|
BackgroundEdgeOrigin backgroundXOrigin() const { return static_cast<BackgroundEdgeOrigin>(m_backgroundXOrigin); }
|
|
BackgroundEdgeOrigin backgroundYOrigin() const { return static_cast<BackgroundEdgeOrigin>(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); }
|
|
WebBlendMode blendMode() const { return static_cast<WebBlendMode>(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; }
|
|
FillLayer* next() { return m_next; }
|
|
FillLayer* ensureNext()
|
|
{
|
|
if (!m_next)
|
|
m_next = new FillLayer(type());
|
|
return m_next;
|
|
}
|
|
|
|
bool isImageSet() const { return m_imageSet; }
|
|
bool isXPositionSet() const { return m_xPosSet; }
|
|
bool isYPositionSet() const { return m_yPosSet; }
|
|
bool isBackgroundXOriginSet() const { return m_backgroundXOriginSet; }
|
|
bool isBackgroundYOriginSet() const { return m_backgroundYOriginSet; }
|
|
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> i) { m_image = i; m_imageSet = true; }
|
|
void setXPosition(const Length& position) { m_xPosition = position; m_xPosSet = true; m_backgroundXOriginSet = false; m_backgroundXOrigin = LeftEdge; }
|
|
void setYPosition(const Length& position) { m_yPosition = position; m_yPosSet = true; m_backgroundYOriginSet = false; m_backgroundYOrigin = TopEdge; }
|
|
void setBackgroundXOrigin(BackgroundEdgeOrigin origin) { m_backgroundXOrigin = origin; m_backgroundXOriginSet = true; }
|
|
void setBackgroundYOrigin(BackgroundEdgeOrigin origin) { m_backgroundYOrigin = origin; m_backgroundYOriginSet = 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(WebBlendMode b) { m_blendMode = b; m_blendModeSet = true; }
|
|
void setSizeType(EFillSizeType b) { m_sizeType = b; }
|
|
void setSizeLength(const 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.clear(); m_imageSet = false; }
|
|
void clearXPosition()
|
|
{
|
|
m_xPosSet = false;
|
|
m_backgroundXOriginSet = false;
|
|
}
|
|
void clearYPosition()
|
|
{
|
|
m_yPosSet = false;
|
|
m_backgroundYOriginSet = 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; }
|
|
|
|
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 imagesAreLoaded() 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;
|
|
}
|
|
|
|
bool hasOpaqueImage(const RenderObject*) const;
|
|
bool hasRepeatXY() const;
|
|
bool clipOccludesNextLayers(bool firstLayer) const;
|
|
|
|
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 initialFillRepeatX(EFillLayerType) { return RepeatFill; }
|
|
static EFillRepeat initialFillRepeatY(EFillLayerType) { return RepeatFill; }
|
|
static CompositeOperator initialFillComposite(EFillLayerType) { return CompositeSourceOver; }
|
|
static WebBlendMode initialFillBlendMode(EFillLayerType) { return WebBlendModeNormal; }
|
|
static EFillSizeType initialFillSizeType(EFillLayerType) { return SizeLength; }
|
|
static LengthSize initialFillSizeLength(EFillLayerType) { return LengthSize(); }
|
|
static FillSize initialFillSize(EFillLayerType type) { return FillSize(initialFillSizeType(type), initialFillSizeLength(type)); }
|
|
static Length initialFillXPosition(EFillLayerType) { return Length(0.0, Percent); }
|
|
static Length initialFillYPosition(EFillLayerType) { return Length(0.0, Percent); }
|
|
static StyleImage* initialFillImage(EFillLayerType) { return 0; }
|
|
static EMaskSourceType initialFillMaskSourceType(EFillLayerType) { return MaskAlpha; }
|
|
|
|
private:
|
|
friend class RenderStyle;
|
|
|
|
void computeClipMax() const;
|
|
|
|
FillLayer() { }
|
|
|
|
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; // WebBlendMode
|
|
unsigned m_maskSourceType : 1; // EMaskSourceType
|
|
unsigned m_backgroundXOrigin : 2; // BackgroundEdgeOrigin
|
|
unsigned m_backgroundYOrigin : 2; // BackgroundEdgeOrigin
|
|
|
|
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_backgroundXOriginSet : 1;
|
|
unsigned m_backgroundYOriginSet : 1;
|
|
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
|
|
};
|
|
|
|
} // namespace blink
|
|
|
|
#endif // FillLayer_h
|