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comparison: gfx/thebes/gfxFontMissingGlyphs.h
gfx/thebes/gfxFontMissingGlyphs.h
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef GFX_FONTMISSINGGLYPHS_H | |
| 7 #define GFX_FONTMISSINGGLYPHS_H | |
| 8 | |
| 9 #include "gfxTypes.h" | |
| 10 #include "gfxRect.h" | |
| 11 | |
| 12 class gfxContext; | |
| 13 | |
| 14 /** | |
| 15 * This class should not be instantiated. It's just a container | |
| 16 * for some helper functions. | |
| 17 */ | |
| 18 class gfxFontMissingGlyphs { | |
| 19 public: | |
| 20 /** | |
| 21 * Draw hexboxes for a missing glyph. | |
| 22 * @param aContext the context to draw to | |
| 23 * @param aRect the glyph-box for the glyph that is missing | |
| 24 * @param aChar the UTF16 codepoint for the character | |
| 25 * @param aAppUnitsPerDevPixel the appUnits to devPixel ratio we're using, | |
| 26 * (so we can scale glyphs to a sensible size) | |
| 27 */ | |
| 28 static void DrawMissingGlyph(gfxContext *aContext, | |
| 29 const gfxRect& aRect, | |
| 30 uint32_t aChar, | |
| 31 uint32_t aAppUnitsPerDevPixel); | |
| 32 /** | |
| 33 * @return the desired minimum width for a glyph-box that will allow | |
| 34 * the hexboxes to be drawn reasonably. | |
| 35 */ | |
| 36 static gfxFloat GetDesiredMinWidth(uint32_t aChar, | |
| 37 uint32_t aAppUnitsPerDevUnit); | |
| 38 }; | |
| 39 | |
| 40 #endif |
