michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFXGDKNATIVERENDER_H_
michael@0: #define GFXGDKNATIVERENDER_H_
michael@0: 
michael@0: #include <gdk/gdk.h>
michael@0: #include "nsSize.h"
michael@0: #ifdef MOZ_X11
michael@0: #include "gfxXlibNativeRenderer.h"
michael@0: #endif
michael@0: 
michael@0: class gfxContext;
michael@0: 
michael@0: /**
michael@0:  * This class lets us take code that draws into an GDK drawable and lets us
michael@0:  * use it to draw into any Thebes context. The user should subclass this class,
michael@0:  * override DrawWithGDK, and then call Draw(). The drawing will be subjected
michael@0:  * to all Thebes transformations, clipping etc.
michael@0:  */
michael@0: class gfxGdkNativeRenderer
michael@0: #ifdef MOZ_X11
michael@0:     : private gfxXlibNativeRenderer
michael@0: #endif
michael@0: {
michael@0: public:
michael@0:     /**
michael@0:      * Perform the native drawing.
michael@0:      * @param offsetX draw at this offset into the given drawable
michael@0:      * @param offsetY draw at this offset into the given drawable
michael@0:      * @param clipRects an array of rects; clip to the union
michael@0:      * @param numClipRects the number of rects in the array, or zero if
michael@0:      * no clipping is required
michael@0:      */
michael@0: 
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX, 
michael@0:             gint offsetY, GdkRectangle * clipRects, uint32_t numClipRects) = 0;
michael@0: #endif
michael@0: 
michael@0:     enum {
michael@0:         // If set, then Draw() is opaque, i.e., every pixel in the intersection
michael@0:         // of the clipRect and (offset.x,offset.y,bounds.width,bounds.height)
michael@0:         // will be set and there is no dependence on what the existing pixels
michael@0:         // in the drawable are set to.
michael@0:         DRAW_IS_OPAQUE =
michael@0: #ifdef MOZ_X11
michael@0:             gfxXlibNativeRenderer::DRAW_IS_OPAQUE
michael@0: #else
michael@0:             0x1
michael@0: #endif
michael@0:         // If set, then numClipRects can be zero or one.
michael@0:         // If not set, then numClipRects will be zero.
michael@0:         , DRAW_SUPPORTS_CLIP_RECT =
michael@0: #ifdef MOZ_X11
michael@0:             gfxXlibNativeRenderer::DRAW_SUPPORTS_CLIP_RECT
michael@0: #else
michael@0:             0x2
michael@0: #endif
michael@0:     };
michael@0: 
michael@0:     /**
michael@0:      * @param flags see above
michael@0:      * @param bounds Draw()'s drawing is guaranteed to be restricted to
michael@0:      * the rectangle (offset.x,offset.y,bounds.width,bounds.height)
michael@0:      * @param dpy a display to use for the drawing if ctx doesn't have one
michael@0:      */
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     void Draw(gfxContext* ctx, nsIntSize size,
michael@0:               uint32_t flags, GdkColormap* colormap);
michael@0: #endif
michael@0: 
michael@0: private:
michael@0: #ifdef MOZ_X11
michael@0:     // for gfxXlibNativeRenderer:
michael@0:     virtual nsresult DrawWithXlib(cairo_surface_t* surface,
michael@0:                                   nsIntPoint offset,
michael@0:                                   nsIntRect* clipRects, uint32_t numClipRects) MOZ_OVERRIDE;
michael@0: 
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     GdkColormap *mColormap;
michael@0: #endif
michael@0: #endif
michael@0: };
michael@0: 
michael@0: #endif /*GFXGDKNATIVERENDER_H_*/