File: StyleRareInheritedData.h

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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 StyleRareInheritedData_h
#define StyleRareInheritedData_h

#include "core/css/StyleColor.h"
#include "core/rendering/style/DataRef.h"
#include "platform/Length.h"
#include "platform/graphics/Color.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/RefVector.h"
#include "wtf/text/AtomicString.h"

namespace WebCore {

class AppliedTextDecoration;
class CursorData;
class QuotesData;
class ShadowList;
class StyleImage;

typedef RefVector<AppliedTextDecoration> AppliedTextDecorationList;
typedef RefVector<CursorData> CursorList;

// This struct is for rarely used 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 StyleRareInheritedData : public RefCounted<StyleRareInheritedData> {
public:
    static PassRefPtr<StyleRareInheritedData> create() { return adoptRef(new StyleRareInheritedData); }
    PassRefPtr<StyleRareInheritedData> copy() const { return adoptRef(new StyleRareInheritedData(*this)); }
    ~StyleRareInheritedData();

    bool operator==(const StyleRareInheritedData& o) const;
    bool operator!=(const StyleRareInheritedData& o) const
    {
        return !(*this == o);
    }
    bool shadowDataEquivalent(const StyleRareInheritedData&) const;
    bool quotesDataEquivalent(const StyleRareInheritedData&) const;

    RefPtr<StyleImage> listStyleImage;

    StyleColor textStrokeColor() const { return m_textStrokeColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_textStrokeColor); }
    StyleColor textFillColor() const { return m_textFillColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_textFillColor); }
    StyleColor textEmphasisColor() const { return m_textEmphasisColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_textEmphasisColor); }
    StyleColor visitedLinkTextStrokeColor() const { return m_visitedLinkTextStrokeColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_visitedLinkTextStrokeColor); }
    StyleColor visitedLinkTextFillColor() const { return m_visitedLinkTextFillColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_visitedLinkTextFillColor); }
    StyleColor visitedLinkTextEmphasisColor() const { return m_visitedLinkTextEmphasisColorIsCurrentColor ? StyleColor::currentColor() : StyleColor(m_visitedLinkTextEmphasisColor); }

    void setTextStrokeColor(const StyleColor& color) { m_textStrokeColor = color.resolve(Color()); m_textStrokeColorIsCurrentColor = color.isCurrentColor(); }
    void setTextFillColor(const StyleColor& color) { m_textFillColor = color.resolve(Color()); m_textFillColorIsCurrentColor = color.isCurrentColor(); }
    void setTextEmphasisColor(const StyleColor& color) { m_textEmphasisColor = color.resolve(Color()); m_textEmphasisColorIsCurrentColor = color.isCurrentColor(); }
    void setVisitedLinkTextStrokeColor(const StyleColor& color) { m_visitedLinkTextStrokeColor = color.resolve(Color()); m_visitedLinkTextStrokeColorIsCurrentColor = color.isCurrentColor(); }
    void setVisitedLinkTextFillColor(const StyleColor& color) { m_visitedLinkTextFillColor = color.resolve(Color()); m_visitedLinkTextFillColorIsCurrentColor = color.isCurrentColor(); }
    void setVisitedLinkTextEmphasisColor(const StyleColor& color) { m_visitedLinkTextEmphasisColor = color.resolve(Color()); m_visitedLinkTextEmphasisColorIsCurrentColor = color.isCurrentColor(); }

    Color m_textStrokeColor;
    float textStrokeWidth;
    Color m_textFillColor;
    Color m_textEmphasisColor;

    Color m_visitedLinkTextStrokeColor;
    Color m_visitedLinkTextFillColor;
    Color m_visitedLinkTextEmphasisColor;

    RefPtr<ShadowList> textShadow; // Our text shadow information for shadowed text drawing.
    AtomicString highlight; // Apple-specific extension for custom highlight rendering.

    RefPtr<CursorList> cursorData;
    Length indent;
    float m_effectiveZoom;

    // Paged media properties.
    short widows;
    short orphans;
    unsigned m_hasAutoWidows : 1;
    unsigned m_hasAutoOrphans : 1;

    unsigned m_textStrokeColorIsCurrentColor : 1;
    unsigned m_textFillColorIsCurrentColor : 1;
    unsigned m_textEmphasisColorIsCurrentColor : 1;
    unsigned m_visitedLinkTextStrokeColorIsCurrentColor : 1;
    unsigned m_visitedLinkTextFillColorIsCurrentColor : 1;
    unsigned m_visitedLinkTextEmphasisColorIsCurrentColor : 1;

    unsigned textSecurity : 2; // ETextSecurity
    unsigned userModify : 2; // EUserModify (editing)
    unsigned wordBreak : 2; // EWordBreak
    unsigned overflowWrap : 1; // EOverflowWrap
    unsigned lineBreak : 3; // LineBreak
    unsigned resize : 2; // EResize
    unsigned userSelect : 2; // EUserSelect
    unsigned speak : 3; // ESpeak
    unsigned hyphens : 2; // Hyphens
    unsigned textEmphasisFill : 1; // TextEmphasisFill
    unsigned textEmphasisMark : 3; // TextEmphasisMark
    unsigned textEmphasisPosition : 1; // TextEmphasisPosition
    unsigned m_textAlignLast : 3; // TextAlignLast
    unsigned m_textJustify : 2; // TextJustify
    unsigned m_textOrientation : 2; // TextOrientation
    unsigned m_textIndentLine : 1; // TextIndentEachLine
    unsigned m_textIndentType : 1; // TextIndentHanging
    unsigned m_lineBoxContain: 7; // LineBoxContain
    // CSS Image Values Level 3
    unsigned m_imageRendering : 2; // EImageRendering
    unsigned m_textUnderlinePosition : 2; // TextUnderlinePosition
    unsigned m_rubyPosition : 1; // RubyPosition
    unsigned m_touchActionDelay : 1; // TouchActionDelay

    // Though will-change is not itself an inherited property, the intent
    // expressed by 'will-change: contents' includes descendants.
    unsigned m_subtreeWillChangeContents : 1;

    AtomicString hyphenationString;
    short hyphenationLimitBefore;
    short hyphenationLimitAfter;
    short hyphenationLimitLines;

    AtomicString locale;

    AtomicString textEmphasisCustomMark;
    RefPtr<QuotesData> quotes;

    unsigned m_tabSize;

    Color tapHighlightColor;

    RefPtr<AppliedTextDecorationList> appliedTextDecorations;

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

} // namespace WebCore

#endif // StyleRareInheritedData_h