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-rw-r--r--gfx/thebes/gfxGdkNativeRenderer.h88
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diff --git a/gfx/thebes/gfxGdkNativeRenderer.h b/gfx/thebes/gfxGdkNativeRenderer.h
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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_*/