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| 1 /* |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are |
| 6 * met: |
| 7 * |
| 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above |
| 11 * copyright notice, this list of conditions and the following disclaimer |
| 12 * in the documentation and/or other materials provided with the |
| 13 * distribution. |
| 14 * * Neither the name of Google Inc. nor the names of its |
| 15 * contributors may be used to endorse or promote products derived from |
| 16 * this software without specific prior written permission. |
| 17 * |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #ifndef CSSToLengthConversionData_h |
| 32 #define CSSToLengthConversionData_h |
| 33 |
| 34 #include "wtf/Assertions.h" |
| 35 #include "wtf/Noncopyable.h" |
| 36 |
| 37 namespace WebCore { |
| 38 |
| 39 class RenderStyle; |
| 40 |
| 41 class CSSToLengthConversionData { |
| 42 public: |
| 43 CSSToLengthConversionData(const RenderStyle* style, const RenderStyle* rootS
tyle, float zoom, bool computingFontSize = false) |
| 44 : m_style(style) |
| 45 , m_rootStyle(rootStyle) |
| 46 , m_zoom(zoom) |
| 47 , m_useEffectiveZoom(false) |
| 48 , m_computingFontSize(computingFontSize) |
| 49 { |
| 50 ASSERT(zoom > 0); |
| 51 } |
| 52 CSSToLengthConversionData(const RenderStyle* style, const RenderStyle* rootS
tyle, bool computingFontSize = false) |
| 53 : m_style(style) |
| 54 , m_rootStyle(rootStyle) |
| 55 , m_useEffectiveZoom(true) |
| 56 , m_computingFontSize(computingFontSize) |
| 57 { |
| 58 } |
| 59 const RenderStyle& style() const { return *m_style; } |
| 60 const RenderStyle& rootStyle() const { return *m_rootStyle; } |
| 61 float zoom() const; |
| 62 bool computingFontSize() const { return m_computingFontSize; } |
| 63 |
| 64 void setStyle(const RenderStyle* style) { m_style = style; } |
| 65 void setRootStyle(const RenderStyle* rootStyle) { m_rootStyle = rootStyle; } |
| 66 |
| 67 CSSToLengthConversionData copyWithAdjustedZoom(float newZoom) const |
| 68 { |
| 69 return CSSToLengthConversionData(m_style, m_rootStyle, newZoom, m_comput
ingFontSize); |
| 70 } |
| 71 |
| 72 private: |
| 73 const RenderStyle* m_style; |
| 74 const RenderStyle* m_rootStyle; |
| 75 float m_zoom; |
| 76 bool m_useEffectiveZoom; |
| 77 bool m_computingFontSize; |
| 78 }; |
| 79 |
| 80 } // namespace WebCore |
| 81 |
| 82 #endif |
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