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| 1 /* | |
| 2 * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved. | |
| 3 * | |
| 4 * This library is free software; you can redistribute it and/or | |
| 5 * modify it under the terms of the GNU Library General Public | |
| 6 * License as published by the Free Software Foundation; either | |
| 7 * version 2 of the License, or (at your option) any later version. | |
| 8 * | |
| 9 * This library is distributed in the hope that it will be useful, | |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 * Library General Public License for more details. | |
| 13 * | |
| 14 * You should have received a copy of the GNU Library General Public License | |
| 15 * along with this library; see the file COPYING.LIB. If not, write to | |
| 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 17 * Boston, MA 02110-1301, USA. | |
| 18 */ | |
| 19 | |
| 20 #ifndef SVGTextLayoutAttributes_h | |
| 21 #define SVGTextLayoutAttributes_h | |
| 22 | |
| 23 #include "wtf/Allocator.h" | |
| 24 #include "wtf/HashMap.h" | |
| 25 #include "wtf/MathExtras.h" | |
| 26 #include "wtf/Noncopyable.h" | |
| 27 | |
| 28 namespace blink { | |
| 29 | |
| 30 class LayoutSVGInlineText; | |
| 31 | |
| 32 struct SVGCharacterData { | |
| 33 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); | |
| 34 SVGCharacterData(); | |
| 35 | |
| 36 static float emptyValue() { return std::numeric_limits<float>::quiet_NaN();
} | |
| 37 static bool isEmptyValue(float value) { return std::isnan(value); } | |
| 38 | |
| 39 bool hasX() const { return !isEmptyValue(x); } | |
| 40 bool hasY() const { return !isEmptyValue(y); } | |
| 41 bool hasDx() const { return !isEmptyValue(dx); } | |
| 42 bool hasDy() const { return !isEmptyValue(dy); } | |
| 43 bool hasRotate() const { return !isEmptyValue(rotate); } | |
| 44 | |
| 45 float x; | |
| 46 float y; | |
| 47 float dx; | |
| 48 float dy; | |
| 49 float rotate; | |
| 50 }; | |
| 51 | |
| 52 typedef HashMap<unsigned, SVGCharacterData> SVGCharacterDataMap; | |
| 53 | |
| 54 class SVGTextLayoutAttributes { | |
| 55 DISALLOW_NEW(); | |
| 56 WTF_MAKE_NONCOPYABLE(SVGTextLayoutAttributes); | |
| 57 public: | |
| 58 SVGTextLayoutAttributes(LayoutSVGInlineText*); | |
| 59 | |
| 60 void clear(); | |
| 61 static float emptyValue() { return std::numeric_limits<float>::quiet_NaN();
} | |
| 62 static bool isEmptyValue(float value) { return std::isnan(value); } | |
| 63 | |
| 64 LayoutSVGInlineText* context() const { return m_context; } | |
| 65 | |
| 66 SVGCharacterDataMap& characterDataMap() { return m_characterDataMap; } | |
| 67 const SVGCharacterDataMap& characterDataMap() const { return m_characterData
Map; } | |
| 68 | |
| 69 private: | |
| 70 LayoutSVGInlineText* m_context; | |
| 71 SVGCharacterDataMap m_characterDataMap; | |
| 72 }; | |
| 73 | |
| 74 inline SVGCharacterData::SVGCharacterData() | |
| 75 : x(emptyValue()) | |
| 76 , y(emptyValue()) | |
| 77 , dx(emptyValue()) | |
| 78 , dy(emptyValue()) | |
| 79 , rotate(emptyValue()) | |
| 80 { | |
| 81 } | |
| 82 | |
| 83 } // namespace blink | |
| 84 | |
| 85 #endif | |
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Chromium Code Reviews
Issue 1937043002:
Remove the LayoutSVGInlineText* context in SVGTextLayoutAttributes (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master