stylerareinheriteddata.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2000 Lars Knoll ([e-mail])
 *           (C) 2000 Antti Koivisto ([e-mail])
 *           (C) 2000 Dirk Mueller ([e-mail])
 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 * Copyright (C) 2006 Graham Dennis ([e-mail])
 *
 * 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 "AtomicString.h"
#include "Color.h"
#include <wtf/RefCounted.h>
#include <wtf/PassRefPtr.h>

namespace WebCore {

struct ShadowData;

// 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;

    Color textStrokeColor;
    float textStrokeWidth;
    Color textFillColor;

    ShadowData* textShadow; // Our text shadow information for shadowed text drawing.
    AtomicString highlight; // Apple-specific extension for custom highlight rendering.
    unsigned textSecurity : 2; // ETextSecurity
    unsigned userModify : 2; // EUserModify (editing)
    unsigned wordBreak : 2; // EWordBreak
    unsigned wordWrap : 1; // EWordWrap 
    unsigned nbspMode : 1; // ENBSPMode
    unsigned khtmlLineBreak : 1; // EKHTMLLineBreak
    bool textSizeAdjust : 1; // An Apple extension.
    unsigned resize : 2; // EResize
    unsigned userSelect : 1;  // EUserSelect
    
private:
    StyleRareInheritedData();
    StyleRareInheritedData(const StyleRareInheritedData&);
};

} // namespace WebCore

#endif // StyleRareInheritedData_h