gfx/thebes/gfxGdkNativeRenderer.h@97036ab72558 (annotated)
gfx/thebes/gfxGdkNativeRenderer.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GFXGDKNATIVERENDER_H_ |
| michael@0 | 7 | #define GFXGDKNATIVERENDER_H_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include <gdk/gdk.h> |
| michael@0 | 10 | #include "nsSize.h" |
| michael@0 | 11 | #ifdef MOZ_X11 |
| michael@0 | 12 | #include "gfxXlibNativeRenderer.h" |
| michael@0 | 13 | #endif |
| michael@0 | 14 | |
| michael@0 | 15 | class gfxContext; |
| michael@0 | 16 | |
| michael@0 | 17 | /** |
| michael@0 | 18 | * This class lets us take code that draws into an GDK drawable and lets us |
| michael@0 | 19 | * use it to draw into any Thebes context. The user should subclass this class, |
| michael@0 | 20 | * override DrawWithGDK, and then call Draw(). The drawing will be subjected |
| michael@0 | 21 | * to all Thebes transformations, clipping etc. |
| michael@0 | 22 | */ |
| michael@0 | 23 | class gfxGdkNativeRenderer |
| michael@0 | 24 | #ifdef MOZ_X11 |
| michael@0 | 25 | : private gfxXlibNativeRenderer |
| michael@0 | 26 | #endif |
| michael@0 | 27 | { |
| michael@0 | 28 | public: |
| michael@0 | 29 | /** |
| michael@0 | 30 | * Perform the native drawing. |
| michael@0 | 31 | * @param offsetX draw at this offset into the given drawable |
| michael@0 | 32 | * @param offsetY draw at this offset into the given drawable |
| michael@0 | 33 | * @param clipRects an array of rects; clip to the union |
| michael@0 | 34 | * @param numClipRects the number of rects in the array, or zero if |
| michael@0 | 35 | * no clipping is required |
| michael@0 | 36 | */ |
| michael@0 | 37 | |
| michael@0 | 38 | #if (MOZ_WIDGET_GTK == 2) |
| michael@0 | 39 | virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX, |
| michael@0 | 40 | gint offsetY, GdkRectangle * clipRects, uint32_t numClipRects) = 0; |
| michael@0 | 41 | #endif |
| michael@0 | 42 | |
| michael@0 | 43 | enum { |
| michael@0 | 44 | // If set, then Draw() is opaque, i.e., every pixel in the intersection |
| michael@0 | 45 | // of the clipRect and (offset.x,offset.y,bounds.width,bounds.height) |
| michael@0 | 46 | // will be set and there is no dependence on what the existing pixels |
| michael@0 | 47 | // in the drawable are set to. |
| michael@0 | 48 | DRAW_IS_OPAQUE = |
| michael@0 | 49 | #ifdef MOZ_X11 |
| michael@0 | 50 | gfxXlibNativeRenderer::DRAW_IS_OPAQUE |
| michael@0 | 51 | #else |
| michael@0 | 52 | 0x1 |
| michael@0 | 53 | #endif |
| michael@0 | 54 | // If set, then numClipRects can be zero or one. |
| michael@0 | 55 | // If not set, then numClipRects will be zero. |
| michael@0 | 56 | , DRAW_SUPPORTS_CLIP_RECT = |
| michael@0 | 57 | #ifdef MOZ_X11 |
| michael@0 | 58 | gfxXlibNativeRenderer::DRAW_SUPPORTS_CLIP_RECT |
| michael@0 | 59 | #else |
| michael@0 | 60 | 0x2 |
| michael@0 | 61 | #endif |
| michael@0 | 62 | }; |
| michael@0 | 63 | |
| michael@0 | 64 | /** |
| michael@0 | 65 | * @param flags see above |
| michael@0 | 66 | * @param bounds Draw()'s drawing is guaranteed to be restricted to |
| michael@0 | 67 | * the rectangle (offset.x,offset.y,bounds.width,bounds.height) |
| michael@0 | 68 | * @param dpy a display to use for the drawing if ctx doesn't have one |
| michael@0 | 69 | */ |
| michael@0 | 70 | #if (MOZ_WIDGET_GTK == 2) |
| michael@0 | 71 | void Draw(gfxContext* ctx, nsIntSize size, |
| michael@0 | 72 | uint32_t flags, GdkColormap* colormap); |
| michael@0 | 73 | #endif |
| michael@0 | 74 | |
| michael@0 | 75 | private: |
| michael@0 | 76 | #ifdef MOZ_X11 |
| michael@0 | 77 | // for gfxXlibNativeRenderer: |
| michael@0 | 78 | virtual nsresult DrawWithXlib(cairo_surface_t* surface, |
| michael@0 | 79 | nsIntPoint offset, |
| michael@0 | 80 | nsIntRect* clipRects, uint32_t numClipRects) MOZ_OVERRIDE; |
| michael@0 | 81 | |
| michael@0 | 82 | #if (MOZ_WIDGET_GTK == 2) |
| michael@0 | 83 | GdkColormap *mColormap; |
| michael@0 | 84 | #endif |
| michael@0 | 85 | #endif |
| michael@0 | 86 | }; |
| michael@0 | 87 | |
| michael@0 | 88 | #endif /*GFXGDKNATIVERENDER_H_*/ |
