gfx/thebes/gfxFontMissingGlyphs.h@97036ab72558 (annotated)
gfx/thebes/gfxFontMissingGlyphs.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 GFX_FONTMISSINGGLYPHS_H |
| michael@0 | 7 | #define GFX_FONTMISSINGGLYPHS_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "gfxTypes.h" |
| michael@0 | 10 | #include "gfxRect.h" |
| michael@0 | 11 | |
| michael@0 | 12 | class gfxContext; |
| michael@0 | 13 | |
| michael@0 | 14 | /** |
| michael@0 | 15 | * This class should not be instantiated. It's just a container |
| michael@0 | 16 | * for some helper functions. |
| michael@0 | 17 | */ |
| michael@0 | 18 | class gfxFontMissingGlyphs { |
| michael@0 | 19 | public: |
| michael@0 | 20 | /** |
| michael@0 | 21 | * Draw hexboxes for a missing glyph. |
| michael@0 | 22 | * @param aContext the context to draw to |
| michael@0 | 23 | * @param aRect the glyph-box for the glyph that is missing |
| michael@0 | 24 | * @param aChar the UTF16 codepoint for the character |
| michael@0 | 25 | * @param aAppUnitsPerDevPixel the appUnits to devPixel ratio we're using, |
| michael@0 | 26 | * (so we can scale glyphs to a sensible size) |
| michael@0 | 27 | */ |
| michael@0 | 28 | static void DrawMissingGlyph(gfxContext *aContext, |
| michael@0 | 29 | const gfxRect& aRect, |
| michael@0 | 30 | uint32_t aChar, |
| michael@0 | 31 | uint32_t aAppUnitsPerDevPixel); |
| michael@0 | 32 | /** |
| michael@0 | 33 | * @return the desired minimum width for a glyph-box that will allow |
| michael@0 | 34 | * the hexboxes to be drawn reasonably. |
| michael@0 | 35 | */ |
| michael@0 | 36 | static gfxFloat GetDesiredMinWidth(uint32_t aChar, |
| michael@0 | 37 | uint32_t aAppUnitsPerDevUnit); |
| michael@0 | 38 | }; |
| michael@0 | 39 | |
| michael@0 | 40 | #endif |
