gdkxftcontext.h

khtml在gtk上的移植版本

/*
 * Copyright (c) 2004 Nokia. All rights reserved.
 *
 * 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.
 *
 * Neither the name of Nokia nor the names of its contributors may be
 * used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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,
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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 */
#ifndef GdkXftContext_h
#define GdkXftContext_h

#include <X11/Xlib.h>
#include <X11/Xft/Xft.h>

#include "NRCore/KWIQCGContext.h"

class CGContextProvider;

class GdkXftContext : public CGContext
{
public:
    GdkXftContext(CGContextProvider* provider, GdkDrawable *drawable);
    ~GdkXftContext();

    void addClip(GdkRectangle* rect);
    void saveGraphicsState();
    void restoreGraphicsState();

    void clearClip();

    XftDraw* xftDraw() { return xftdraw; }
    void xftTranslate(int* x, int* y);

    Visual* XVisual() { return xvisual;}
    Colormap XColormap() {return xcmap;}
    void regionExpiresAt(GTimeVal* moment, GdkRectangle* rect);
private:
    void updateXftDraw();
    GdkRegion *savedClip;   

    XftDraw* xftdraw;
    GdkDrawable* xftGdkDraw;
    Colormap xcmap;
    Visual *xvisual;
    int xftxoff, xftyoff;

    bool iswindow;
    CGContextProvider *provider;
};

#endif