WebCore/platform/graphics/android/FontPlatformData.h

/*
 * Copyright 2009, The Android Open Source Project
 * Copyright (C) 2006 Apple Computer, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

// This file is part of the internal font implementation.  It should not be included by anyone other than
// FontMac.cpp, FontWin.cpp and Font.cpp.

#ifndef FontPlatformData_H
#define FontPlatformData_H

#ifndef NDEBUG
#include "PlatformString.h"
#endif

#include "StringImpl.h"

class SkPaint;
class SkTypeface;

namespace WebCore {

class FontPlatformData {
public:
    static FontPlatformData Deleted() {
        return FontPlatformData(NULL, -1, false, false);
    }

    FontPlatformData();
    FontPlatformData(const FontPlatformData&);
    FontPlatformData(SkTypeface*, float textSize, bool fakeBold, bool fakeItalic);
    FontPlatformData(const FontPlatformData& src, float textSize);
    FontPlatformData(float size, bool syntheticBold, bool syntheticOblique);

    ~FontPlatformData();

    FontPlatformData(WTF::HashTableDeletedValueType)
        : mTypeface(hashTableDeletedFontValue()) { }
    bool isHashTableDeletedValue() const {
        return mTypeface == hashTableDeletedFontValue();
    }

    FontPlatformData& operator=(const FontPlatformData&);
    bool operator==(const FontPlatformData& a) const;

    void     setupPaint(SkPaint*) const;
    float size() const { return mTextSize; }
    unsigned hash() const;

#ifndef NDEBUG
    String description() const { return ""; }
#endif

private:
    SkTypeface* mTypeface;
    float       mTextSize;
    bool        mFakeBold;
    bool        mFakeItalic;

    static SkTypeface* hashTableDeletedFontValue() {
        return reinterpret_cast<SkTypeface*>(-1);
    }
};
    
} /* namespace */

#endif