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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Novell code.
 *
 * The Initial Developer of the Original Code is Novell.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   rocallahan@novell.com
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef GFXGDKNATIVERENDER_H_
#define GFXGDKNATIVERENDER_H_

#include <gdk/gdk.h>
#include "nsSize.h"
#ifdef MOZ_X11
#include "gfxXlibNativeRenderer.h"
#endif

class gfxASurface;
class gfxContext;

/**
 * This class lets us take code that draws into an GDK drawable and lets us
 * use it to draw into any Thebes context. The user should subclass this class,
 * override DrawWithGDK, and then call Draw(). The drawing will be subjected
 * to all Thebes transformations, clipping etc.
 */
class THEBES_API gfxGdkNativeRenderer
#ifdef MOZ_X11
    : private gfxXlibNativeRenderer
#endif
{
public:
    /**
     * Perform the native drawing.
     * @param offsetX draw at this offset into the given drawable
     * @param offsetY draw at this offset into the given drawable
     * @param clipRects an array of rects; clip to the union
     * @param numClipRects the number of rects in the array, or zero if
     * no clipping is required
     */
    virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX, 
            gint offsetY, GdkRectangle * clipRects, PRUint32 numClipRects) = 0;
  
    enum {
        // If set, then Draw() is opaque, i.e., every pixel in the intersection
        // of the clipRect and (offset.x,offset.y,bounds.width,bounds.height)
        // will be set and there is no dependence on what the existing pixels
        // in the drawable are set to.
        DRAW_IS_OPAQUE =
#ifdef MOZ_X11
            gfxXlibNativeRenderer::DRAW_IS_OPAQUE
#else
            0x1
#endif
        // If set, then numClipRects can be zero or one.
        // If not set, then numClipRects will be zero.
        , DRAW_SUPPORTS_CLIP_RECT =
#ifdef MOZ_X11
            gfxXlibNativeRenderer::DRAW_SUPPORTS_CLIP_RECT
#else
            0x2
#endif
    };

    /**
     * @param flags see above
     * @param bounds Draw()'s drawing is guaranteed to be restricted to
     * the rectangle (offset.x,offset.y,bounds.width,bounds.height)
     * @param dpy a display to use for the drawing if ctx doesn't have one
     */
    void Draw(gfxContext* ctx, nsIntSize size,
              PRUint32 flags, GdkColormap* colormap);

private:
#ifdef MOZ_X11
    // for gfxXlibNativeRenderer:
    virtual nsresult DrawWithXlib(gfxXlibSurface* surface,
                                  nsIntPoint offset,
                                  nsIntRect* clipRects, PRUint32 numClipRects);

    GdkColormap *mColormap;
#endif
};

#endif /*GFXGDKNATIVERENDER_H_*/