sky/engine/core/rendering/style/StyleRareNonInheritedData.h

/*
 * 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 SKY_ENGINE_CORE_RENDERING_STYLE_STYLERARENONINHERITEDDATA_H_
#define SKY_ENGINE_CORE_RENDERING_STYLE_STYLERARENONINHERITEDDATA_H_

#include "sky/engine/core/css/StyleColor.h"
#include "sky/engine/core/rendering/ClipPathOperation.h"
#include "sky/engine/core/rendering/style/BasicShapes.h"
#include "sky/engine/core/rendering/style/CounterDirectives.h"
#include "sky/engine/core/rendering/style/DataRef.h"
#include "sky/engine/core/rendering/style/FillLayer.h"
#include "sky/engine/core/rendering/style/RenderStyleConstants.h"
#include "sky/engine/core/rendering/style/ShapeValue.h"
#include "sky/engine/platform/LengthPoint.h"
#include "sky/engine/wtf/OwnPtr.h"
#include "sky/engine/wtf/PassRefPtr.h"
#include "sky/engine/wtf/Vector.h"

namespace blink {

class LengthSize;
class ShadowList;
class StyleFilterData;
class StyleFlexibleBoxData;
class StyleTransformData;

// This struct is for rarely used non-inherited CSS3, CSS2, and WebKit-specific properties.
// By grouping them together, we save space, and only allocate this object when someone
// actually uses one of these properties.
class StyleRareNonInheritedData : public RefCounted<StyleRareNonInheritedData> {
public:
    static PassRefPtr<StyleRareNonInheritedData> create() { return adoptRef(new StyleRareNonInheritedData); }
    PassRefPtr<StyleRareNonInheritedData> copy() const { return adoptRef(new StyleRareNonInheritedData(*this)); }
    ~StyleRareNonInheritedData();

    bool operator==(const StyleRareNonInheritedData&) const;
    bool operator!=(const StyleRareNonInheritedData& o) const { return !(*this == o); }

    bool counterDataEquivalent(const StyleRareNonInheritedData&) const;
    bool shadowDataEquivalent(const StyleRareNonInheritedData&) const;
    bool hasFilters() const;
    bool hasOpacity() const { return opacity < 1; }

    float opacity; // Whether or not we're transparent.

    float m_aspectRatioDenominator;
    float m_aspectRatioNumerator;

    float m_perspective;
    Length m_perspectiveOriginX;
    Length m_perspectiveOriginY;

    DataRef<StyleFlexibleBoxData> m_flexibleBox;
    DataRef<StyleTransformData> m_transform; // Transform properties (rotate, scale, skew, etc.)

    DataRef<StyleFilterData> m_filter; // Filter operations (url, sepia, blur, etc.)

    OwnPtr<CounterDirectiveMap> m_counterDirectives;

    RefPtr<ShadowList> m_boxShadow;

    RefPtr<ClipPathOperation> m_clipPath;

    StyleColor m_textDecorationColor;

    int m_order;

    LengthPoint m_objectPosition;

    unsigned m_transformStyle3D : 1; // ETransformStyle3D

    unsigned m_alignContent : 3; // EAlignContent
    unsigned m_alignItems : 4; // ItemPosition
    unsigned m_alignItemsOverflowAlignment : 2; // OverflowAlignment
    unsigned m_alignSelf : 4; // ItemPosition
    unsigned m_alignSelfOverflowAlignment : 2; // OverflowAlignment
    unsigned m_justifyContent : 3; // EJustifyContent

    unsigned textOverflow : 1; // Whether or not lines that spill out should be truncated with "..."

    unsigned m_textDecorationStyle : 3; // TextDecorationStyle
    unsigned m_wrapFlow: 3; // WrapFlow
    unsigned m_wrapThrough: 1; // WrapThrough

    unsigned m_hasAspectRatio : 1; // Whether or not an aspect ratio has been specified.

    unsigned m_touchAction : TouchActionBits; // TouchAction

    unsigned m_objectFit : 3; // ObjectFit

    unsigned m_isolation : 1; // Isolation

    unsigned m_justifyItems : 4; // ItemPosition
    unsigned m_justifyItemsOverflowAlignment : 2; // OverflowAlignment
    unsigned m_justifyItemsPositionType: 1; // Whether or not alignment uses the 'legacy' keyword.

    unsigned m_justifySelf : 4; // ItemPosition
    unsigned m_justifySelfOverflowAlignment : 2; // OverflowAlignment

private:
    StyleRareNonInheritedData();
    StyleRareNonInheritedData(const StyleRareNonInheritedData&);
};

} // namespace blink

#endif  // SKY_ENGINE_CORE_RENDERING_STYLE_STYLERARENONINHERITEDDATA_H_