1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxGdkNativeRenderer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,88 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFXGDKNATIVERENDER_H_
1.10 +#define GFXGDKNATIVERENDER_H_
1.11 +
1.12 +#include <gdk/gdk.h>
1.13 +#include "nsSize.h"
1.14 +#ifdef MOZ_X11
1.15 +#include "gfxXlibNativeRenderer.h"
1.16 +#endif
1.17 +
1.18 +class gfxContext;
1.19 +
1.20 +/**
1.21 + * This class lets us take code that draws into an GDK drawable and lets us
1.22 + * use it to draw into any Thebes context. The user should subclass this class,
1.23 + * override DrawWithGDK, and then call Draw(). The drawing will be subjected
1.24 + * to all Thebes transformations, clipping etc.
1.25 + */
1.26 +class gfxGdkNativeRenderer
1.27 +#ifdef MOZ_X11
1.28 + : private gfxXlibNativeRenderer
1.29 +#endif
1.30 +{
1.31 +public:
1.32 + /**
1.33 + * Perform the native drawing.
1.34 + * @param offsetX draw at this offset into the given drawable
1.35 + * @param offsetY draw at this offset into the given drawable
1.36 + * @param clipRects an array of rects; clip to the union
1.37 + * @param numClipRects the number of rects in the array, or zero if
1.38 + * no clipping is required
1.39 + */
1.40 +
1.41 +#if (MOZ_WIDGET_GTK == 2)
1.42 + virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX,
1.43 + gint offsetY, GdkRectangle * clipRects, uint32_t numClipRects) = 0;
1.44 +#endif
1.45 +
1.46 + enum {
1.47 + // If set, then Draw() is opaque, i.e., every pixel in the intersection
1.48 + // of the clipRect and (offset.x,offset.y,bounds.width,bounds.height)
1.49 + // will be set and there is no dependence on what the existing pixels
1.50 + // in the drawable are set to.
1.51 + DRAW_IS_OPAQUE =
1.52 +#ifdef MOZ_X11
1.53 + gfxXlibNativeRenderer::DRAW_IS_OPAQUE
1.54 +#else
1.55 + 0x1
1.56 +#endif
1.57 + // If set, then numClipRects can be zero or one.
1.58 + // If not set, then numClipRects will be zero.
1.59 + , DRAW_SUPPORTS_CLIP_RECT =
1.60 +#ifdef MOZ_X11
1.61 + gfxXlibNativeRenderer::DRAW_SUPPORTS_CLIP_RECT
1.62 +#else
1.63 + 0x2
1.64 +#endif
1.65 + };
1.66 +
1.67 + /**
1.68 + * @param flags see above
1.69 + * @param bounds Draw()'s drawing is guaranteed to be restricted to
1.70 + * the rectangle (offset.x,offset.y,bounds.width,bounds.height)
1.71 + * @param dpy a display to use for the drawing if ctx doesn't have one
1.72 + */
1.73 +#if (MOZ_WIDGET_GTK == 2)
1.74 + void Draw(gfxContext* ctx, nsIntSize size,
1.75 + uint32_t flags, GdkColormap* colormap);
1.76 +#endif
1.77 +
1.78 +private:
1.79 +#ifdef MOZ_X11
1.80 + // for gfxXlibNativeRenderer:
1.81 + virtual nsresult DrawWithXlib(cairo_surface_t* surface,
1.82 + nsIntPoint offset,
1.83 + nsIntRect* clipRects, uint32_t numClipRects) MOZ_OVERRIDE;
1.84 +
1.85 +#if (MOZ_WIDGET_GTK == 2)
1.86 + GdkColormap *mColormap;
1.87 +#endif
1.88 +#endif
1.89 +};
1.90 +
1.91 +#endif /*GFXGDKNATIVERENDER_H_*/
