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| 1 /* Copyright (c) 2010, Google Inc. All rights reserved. | |
| 2 * | |
| 3 * Redistribution and use in source and binary forms, with or without | |
| 4 * modification, are permitted provided that the following conditions are | |
| 5 * met: | |
| 6 * | |
| 7 * * Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * * Redistributions in binary form must reproduce the above | |
| 10 * copyright notice, this list of conditions and the following disclaimer | |
| 11 * in the documentation and/or other materials provided with the | |
| 12 * distribution. | |
| 13 * * Neither the name of Google Inc. nor the names of its | |
| 14 * contributors may be used to endorse or promote products derived from | |
| 15 * this software without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #ifndef FontRenderStyle_h | |
| 31 #define FontRenderStyle_h | |
| 32 | |
| 33 #include "wtf/Allocator.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 // FontRenderStyle describes the user's preferences for rendering a font at a | |
| 38 // given size. | |
| 39 struct FontRenderStyle { | |
| 40 DISALLOW_NEW(); | |
| 41 enum { | |
| 42 NoPreference = 2, | |
| 43 }; | |
| 44 | |
| 45 FontRenderStyle() | |
| 46 : useBitmaps(0) | |
| 47 , useAutoHint(0) | |
| 48 , useHinting(0) | |
| 49 , hintStyle(0) | |
| 50 , useAntiAlias(0) | |
| 51 , useSubpixelRendering(0) | |
| 52 , useSubpixelPositioning(0) { } | |
| 53 | |
| 54 bool operator==(const FontRenderStyle& a) const | |
| 55 { | |
| 56 return useBitmaps == a.useBitmaps | |
| 57 && useAutoHint == a.useAutoHint | |
| 58 && useHinting == a.useHinting | |
| 59 && hintStyle == a.hintStyle | |
| 60 && useAntiAlias == a.useAntiAlias | |
| 61 && useSubpixelRendering == a.useSubpixelRendering | |
| 62 && useSubpixelPositioning == a.useSubpixelPositioning; | |
| 63 } | |
| 64 | |
| 65 // Each of the use* members below can take one of three values: | |
| 66 // 0: off | |
| 67 // 1: on | |
| 68 // NoPreference: no preference expressed | |
| 69 char useBitmaps; // use embedded bitmap strike if possible | |
| 70 char useAutoHint; // use 'auto' hinting (FreeType specific) | |
| 71 char useHinting; // hint glyphs to the pixel grid | |
| 72 char hintStyle; // level of hinting, 0..3 | |
| 73 char useAntiAlias; // antialias glyph shapes | |
| 74 char useSubpixelRendering; // use subpixel rendering (partially-filled pixel
s) | |
| 75 char useSubpixelPositioning; // use subpixel positioning (fractional X posit
ions for glyphs) | |
| 76 }; | |
| 77 | |
| 78 } // namespace blink | |
| 79 | |
| 80 #endif // FontRenderStyle_h | |
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