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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFXGDKNATIVERENDER_H_
#define GFXGDKNATIVERENDER_H_
#include <gdk/gdk.h>
#include "nsSize.h"
#ifdef MOZ_X11
#include "gfxXlibNativeRenderer.h"
#endif
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 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
*/
#if (MOZ_WIDGET_GTK == 2)
virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX,
gint offsetY, GdkRectangle * clipRects, uint32_t numClipRects) = 0;
#endif
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
*/
#if (MOZ_WIDGET_GTK == 2)
void Draw(gfxContext* ctx, mozilla::gfx::IntSize size,
uint32_t flags, GdkColormap* colormap);
#endif
private:
#ifdef MOZ_X11
// for gfxXlibNativeRenderer:
virtual nsresult DrawWithXlib(cairo_surface_t* surface,
nsIntPoint offset,
mozilla::gfx::IntRect* clipRects, uint32_t numClipRects) override;
#if (MOZ_WIDGET_GTK == 2)
GdkColormap *mColormap;
#endif
#endif
};
#endif /*GFXGDKNATIVERENDER_H_*/
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