gecko-dev/gfx/thebes/public/gfxPlatformGtk.h

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 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
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 * The Original Code is Mozilla Foundation code.
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 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Vladimir Vukicevic <vladimir@pobox.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
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#ifndef GFX_PLATFORM_GTK_H
#define GFX_PLATFORM_GTK_H

#include <gdk/gdkx.h>

#include "gfxPlatform.h"

class THEBES_API gfxPlatformGtk : public gfxPlatform {
public:
    gfxPlatformGtk();

    static gfxPlatformGtk *GetPlatform() {
        return (gfxPlatformGtk*) gfxPlatform::GetPlatform();
    }

    already_AddRefed<gfxASurface> CreateOffscreenSurface(PRUint32 width,
                                                         PRUint32 height,
                                                         gfxASurface::gfxImageFormat imageFormat);

    GdkDrawable *GetSurfaceGdkDrawable(gfxASurface *aSurf);

    void SetSurfaceGdkWindow(gfxASurface *aSurf,
                             GdkWindow *win);

    nsresult GetFontList(const nsACString& aLangGroup,
                         const nsACString& aGenericFamily,
                         nsStringArray& aListOfFonts);

    static PRInt32 DPI() {
        if (sDPI == -1) {
            InitDPI();
        }
        NS_ASSERTION(sDPI != 0, "Something is wrong");
        return sDPI;
    }

protected:

    static void InitDPI();

    static PRInt32 sDPI;
};

#endif /* GFX_PLATFORM_GTK_H */