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1 /* | 1 /* |
2 * Copyright (C) 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2011 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 * Library General Public License for more details. | 12 * Library General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU Library General Public License | 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 | 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, | 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 * Boston, MA 02110-1301, USA. | 17 * Boston, MA 02110-1301, USA. |
18 * | 18 * |
19 */ | 19 */ |
20 | 20 |
21 #ifndef RenderCombineText_h | 21 #ifndef LayoutTextCombine_h |
22 #define RenderCombineText_h | 22 #define LayoutTextCombine_h |
23 | 23 |
24 #include "core/rendering/RenderText.h" | 24 #include "core/layout/LayoutText.h" |
25 #include "platform/fonts/Font.h" | 25 #include "platform/fonts/Font.h" |
26 | 26 |
27 namespace blink { | 27 namespace blink { |
28 | 28 |
29 // RenderCombineText uses different coordinate systems for layout and inlineText
Box, | 29 // LayoutTextCombine uses different coordinate systems for layout and inlineText
Box, |
30 // because it is treated as 1em-box character in vertical flow for the layout, | 30 // because it is treated as 1em-box character in vertical flow for the layout, |
31 // while its inline box is in horizontal flow. | 31 // while its inline box is in horizontal flow. |
32 class RenderCombineText final : public RenderText { | 32 class LayoutTextCombine final : public LayoutText { |
33 public: | 33 public: |
34 RenderCombineText(Node*, PassRefPtr<StringImpl>); | 34 LayoutTextCombine(Node*, PassRefPtr<StringImpl>); |
35 | 35 |
36 void updateFont(); | 36 void updateFont(); |
37 bool isCombined() const { return m_isCombined; } | 37 bool isCombined() const { return m_isCombined; } |
38 float combinedTextWidth(const Font& font) const { return font.fontDescriptio
n().computedSize(); } | 38 float combinedTextWidth(const Font& font) const { return font.fontDescriptio
n().computedSize(); } |
39 const Font& originalFont() const { return parent()->style()->font(); } | 39 const Font& originalFont() const { return parent()->style()->font(); } |
40 void transformToInlineCoordinates(GraphicsContext&, const FloatRect& boxRect
) const; | 40 void transformToInlineCoordinates(GraphicsContext&, const FloatRect& boxRect
) const; |
41 void transformLayoutRect(FloatRect& boxRect) const; | 41 void transformLayoutRect(FloatRect& boxRect) const; |
42 float inlineWidthForLayout() const; | 42 float inlineWidthForLayout() const; |
43 | 43 |
44 private: | 44 private: |
45 virtual bool isCombineText() const override { return true; } | 45 virtual bool isCombineText() const override { return true; } |
46 virtual float width(unsigned from, unsigned length, const Font&, float xPosi
tion, TextDirection, HashSet<const SimpleFontData*>* fallbackFonts = 0, GlyphOve
rflow* = 0) const override; | 46 virtual float width(unsigned from, unsigned length, const Font&, float xPosi
tion, TextDirection, HashSet<const SimpleFontData*>* fallbackFonts = 0, GlyphOve
rflow* = 0) const override; |
47 virtual const char* renderName() const override { return "RenderCombineText"
; } | 47 virtual const char* renderName() const override { return "RenderCombineText"
; } |
48 virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) ov
erride; | 48 virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) ov
erride; |
49 virtual void setTextInternal(PassRefPtr<StringImpl>) override; | 49 virtual void setTextInternal(PassRefPtr<StringImpl>) override; |
50 void updateIsCombined(); | 50 void updateIsCombined(); |
51 | 51 |
52 float offsetX(const FloatRect& boxRect) const; | 52 float offsetX(const FloatRect& boxRect) const; |
53 float offsetXNoScale(const FloatRect& boxRect) const; | 53 float offsetXNoScale(const FloatRect& boxRect) const; |
54 float offsetY() const { return style()->font().fontDescription().computedPix
elSize(); } | 54 float offsetY() const { return style()->font().fontDescription().computedPix
elSize(); } |
55 | 55 |
56 float m_combinedTextWidth; | 56 float m_combinedTextWidth; |
57 float m_scaleX; | 57 float m_scaleX; |
58 bool m_isCombined : 1; | 58 bool m_isCombined : 1; |
59 bool m_needsFontUpdate : 1; | 59 bool m_needsFontUpdate : 1; |
60 }; | 60 }; |
61 | 61 |
62 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderCombineText, isCombineText()); | 62 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTextCombine, isCombineText()); |
63 | 63 |
64 inline float RenderCombineText::inlineWidthForLayout() const | 64 inline float LayoutTextCombine::inlineWidthForLayout() const |
65 { | 65 { |
66 ASSERT(!m_needsFontUpdate); | 66 ASSERT(!m_needsFontUpdate); |
67 return m_combinedTextWidth; | 67 return m_combinedTextWidth; |
68 } | 68 } |
69 | 69 |
70 inline float RenderCombineText::offsetX(const FloatRect& boxRect) const | 70 inline float LayoutTextCombine::offsetX(const FloatRect& boxRect) const |
71 { | 71 { |
72 ASSERT(!m_needsFontUpdate); | 72 ASSERT(!m_needsFontUpdate); |
73 return (boxRect.height() - m_combinedTextWidth / m_scaleX) / 2; | 73 return (boxRect.height() - m_combinedTextWidth / m_scaleX) / 2; |
74 } | 74 } |
75 | 75 |
76 inline float RenderCombineText::offsetXNoScale(const FloatRect& boxRect) const | 76 inline float LayoutTextCombine::offsetXNoScale(const FloatRect& boxRect) const |
77 { | 77 { |
78 ASSERT(!m_needsFontUpdate); | 78 ASSERT(!m_needsFontUpdate); |
79 return (boxRect.height() - m_combinedTextWidth) / 2; | 79 return (boxRect.height() - m_combinedTextWidth) / 2; |
80 } | 80 } |
81 | 81 |
82 | 82 |
83 } // namespace blink | 83 } // namespace blink |
84 | 84 |
85 #endif // RenderCombineText_h | 85 #endif // LayoutTextCombine_h |
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