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1 /* | 1 /* |
2 * (C) 1999 Lars Knoll (knoll@kde.org) | 2 * (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 2000 Dirk Mueller (mueller@kde.org) | 3 * (C) 2000 Dirk Mueller (mueller@kde.org) |
4 * Copyright (C) 2004, 2005, 2006, 2009, 2010, 2011 Apple Inc. All rights reserv
ed. | 4 * Copyright (C) 2004, 2005, 2006, 2009, 2010, 2011 Apple Inc. All rights reserv
ed. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
15 * | 15 * |
16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
20 * | 20 * |
21 */ | 21 */ |
22 | 22 |
23 #ifndef InlineTextBox_h | 23 #ifndef InlineTextBox_h |
24 #define InlineTextBox_h | 24 #define InlineTextBox_h |
25 | 25 |
| 26 #include "core/rendering/FloatToLayoutUnit.h" |
26 #include "core/rendering/InlineBox.h" | 27 #include "core/rendering/InlineBox.h" |
27 #include "core/rendering/RenderText.h" // so textRenderer() can be inline | 28 #include "core/rendering/RenderText.h" // so textRenderer() can be inline |
28 #include "platform/fonts/TextBlob.h" | 29 #include "platform/fonts/TextBlob.h" |
29 #include "platform/text/TextRun.h" | 30 #include "platform/text/TextRun.h" |
30 #include "wtf/Forward.h" | 31 #include "wtf/Forward.h" |
31 | 32 |
32 namespace blink { | 33 namespace blink { |
33 | 34 |
34 class DocumentMarker; | 35 class DocumentMarker; |
35 class GraphicsContext; | 36 class GraphicsContext; |
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90 // charactersWithHyphen, if provided, must not be destroyed before the TextR
un. | 91 // charactersWithHyphen, if provided, must not be destroyed before the TextR
un. |
91 TextRun constructTextRun(RenderStyle*, const Font&, StringBuilder* character
sWithHyphen = 0) const; | 92 TextRun constructTextRun(RenderStyle*, const Font&, StringBuilder* character
sWithHyphen = 0) const; |
92 TextRun constructTextRun(RenderStyle*, const Font&, StringView, int maximumL
ength, StringBuilder* charactersWithHyphen = 0) const; | 93 TextRun constructTextRun(RenderStyle*, const Font&, StringView, int maximumL
ength, StringBuilder* charactersWithHyphen = 0) const; |
93 | 94 |
94 #ifndef NDEBUG | 95 #ifndef NDEBUG |
95 virtual void showBox(int = 0) const override; | 96 virtual void showBox(int = 0) const override; |
96 virtual const char* boxName() const override; | 97 virtual const char* boxName() const override; |
97 #endif | 98 #endif |
98 | 99 |
99 enum RotationDirection { Counterclockwise, Clockwise }; | 100 enum RotationDirection { Counterclockwise, Clockwise }; |
100 static AffineTransform rotation(const FloatRect& boxRect, RotationDirection)
; | 101 static AffineTransform rotation(const FloatRectWillBeLayoutRect& boxRect, Ro
tationDirection); |
101 | 102 |
102 public: | 103 public: |
103 TextRun constructTextRunForInspector(RenderStyle*, const Font&) const; | 104 TextRun constructTextRunForInspector(RenderStyle*, const Font&) const; |
104 virtual FloatRect calculateBoundaries() const override { return FloatRect(x(
), y(), width(), height()); } | 105 virtual FloatRectWillBeLayoutRect calculateBoundaries() const override { ret
urn FloatRectWillBeLayoutRect(x(), y(), width(), height()); } |
105 | 106 |
106 virtual LayoutRect localSelectionRect(int startPos, int endPos); | 107 virtual LayoutRect localSelectionRect(int startPos, int endPos); |
107 bool isSelected(int startPos, int endPos) const; | 108 bool isSelected(int startPos, int endPos) const; |
108 void selectionStartEnd(int& sPos, int& ePos) const; | 109 void selectionStartEnd(int& sPos, int& ePos) const; |
109 | 110 |
110 // These functions both paint markers and update the DocumentMarker's render
edRect. | 111 // These functions both paint markers and update the DocumentMarker's render
edRect. |
111 virtual void paintDocumentMarker(GraphicsContext*, const FloatPoint& boxOrig
in, DocumentMarker*, RenderStyle*, const Font&, bool grammar); | 112 virtual void paintDocumentMarker(GraphicsContext*, const FloatPointWillBeLay
outPoint& boxOrigin, DocumentMarker*, RenderStyle*, const Font&, bool grammar); |
112 virtual void paintTextMatchMarker(GraphicsContext*, const FloatPoint& boxOri
gin, DocumentMarker*, RenderStyle*, const Font&); | 113 virtual void paintTextMatchMarker(GraphicsContext*, const FloatPointWillBeLa
youtPoint& boxOrigin, DocumentMarker*, RenderStyle*, const Font&); |
113 | 114 |
114 protected: | 115 protected: |
115 virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, Layou
tUnit lineBottom) override; | 116 virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, Layou
tUnit lineBottom) override; |
116 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTes
tLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit
lineTop, LayoutUnit lineBottom) override; | 117 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTes
tLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit
lineTop, LayoutUnit lineBottom) override; |
117 | 118 |
118 private: | 119 private: |
119 virtual void deleteLine() override final; | 120 virtual void deleteLine() override final; |
120 virtual void extractLine() override final; | 121 virtual void extractLine() override final; |
121 virtual void attachLine() override final; | 122 virtual void attachLine() override final; |
122 | 123 |
123 public: | 124 public: |
124 virtual RenderObject::SelectionState selectionState() const override final; | 125 virtual RenderObject::SelectionState selectionState() const override final; |
125 | 126 |
126 private: | 127 private: |
127 virtual void clearTruncation() override final { m_truncation = cNoTruncation
; } | 128 virtual void clearTruncation() override final { m_truncation = cNoTruncation
; } |
128 virtual float placeEllipsisBox(bool flowIsLTR, float visibleLeftEdge, float
visibleRightEdge, float ellipsisWidth, float &truncatedWidth, bool& foundBox) ov
erride final; | 129 virtual FloatWillBeLayoutUnit placeEllipsisBox(bool flowIsLTR, FloatWillBeLa
youtUnit visibleLeftEdge, FloatWillBeLayoutUnit visibleRightEdge, FloatWillBeLay
outUnit ellipsisWidth, FloatWillBeLayoutUnit &truncatedWidth, bool& foundBox) ov
erride final; |
129 | 130 |
130 public: | 131 public: |
131 virtual bool isLineBreak() const override final; | 132 virtual bool isLineBreak() const override final; |
132 | 133 |
133 void setExpansion(int newExpansion) | 134 void setExpansion(int newExpansion) |
134 { | 135 { |
135 m_logicalWidth -= expansion(); | 136 m_logicalWidth -= expansion(); |
136 InlineBox::setExpansion(newExpansion); | 137 InlineBox::setExpansion(newExpansion); |
137 m_logicalWidth += newExpansion; | 138 m_logicalWidth += newExpansion; |
138 } | 139 } |
139 | 140 |
140 private: | 141 private: |
141 virtual bool isInlineTextBox() const override final { return true; } | 142 virtual bool isInlineTextBox() const override final { return true; } |
142 | 143 |
143 public: | 144 public: |
144 virtual int caretMinOffset() const override final; | 145 virtual int caretMinOffset() const override final; |
145 virtual int caretMaxOffset() const override final; | 146 virtual int caretMaxOffset() const override final; |
146 | 147 |
147 float textPos() const; // returns the x position relative to the left start
of the text line. | 148 FloatWillBeLayoutUnit textPos() const; // returns the x position relative to
the left start of the text line. |
148 | 149 |
149 public: | 150 public: |
150 virtual int offsetForPosition(float x, bool includePartialGlyphs = true) con
st; | 151 virtual int offsetForPosition(FloatWillBeLayoutUnit x, bool includePartialGl
yphs = true) const; |
151 virtual float positionForOffset(int offset) const; | 152 virtual FloatWillBeLayoutUnit positionForOffset(int offset) const; |
152 | 153 |
153 bool containsCaretOffset(int offset) const; // false for offset after line b
reak | 154 bool containsCaretOffset(int offset) const; // false for offset after line b
reak |
154 | 155 |
155 // Fills a vector with the pixel width of each character. | 156 // Fills a vector with the pixel width of each character. |
156 void characterWidths(Vector<float>&) const; | 157 void characterWidths(Vector<FloatWillBeLayoutUnit>&) const; |
157 | 158 |
158 private: | 159 private: |
159 InlineTextBox* m_prevTextBox; // The previous box that also uses our RenderO
bject | 160 InlineTextBox* m_prevTextBox; // The previous box that also uses our RenderO
bject |
160 InlineTextBox* m_nextTextBox; // The next box that also uses our RenderObjec
t | 161 InlineTextBox* m_nextTextBox; // The next box that also uses our RenderObjec
t |
161 | 162 |
162 int m_start; | 163 int m_start; |
163 unsigned short m_len; | 164 unsigned short m_len; |
164 | 165 |
165 unsigned short m_truncation; // Where to truncate when text overflow is appl
ied. We use special constants to | 166 unsigned short m_truncation; // Where to truncate when text overflow is appl
ied. We use special constants to |
166 // denote no truncation (the whole run paints) and full tr
uncation (nothing paints at all). | 167 // denote no truncation (the whole run paints) and full tr
uncation (nothing paints at all). |
167 | 168 |
168 private: | 169 private: |
169 TextRun::ExpansionBehavior expansionBehavior() const | 170 TextRun::ExpansionBehavior expansionBehavior() const |
170 { | 171 { |
171 return (canHaveLeadingExpansion() ? TextRun::AllowLeadingExpansion : Tex
tRun::ForbidLeadingExpansion) | 172 return (canHaveLeadingExpansion() ? TextRun::AllowLeadingExpansion : Tex
tRun::ForbidLeadingExpansion) |
172 | (expansion() && nextLeafChild() ? TextRun::AllowTrailingExpansion
: TextRun::ForbidTrailingExpansion); | 173 | (expansion() && nextLeafChild() ? TextRun::AllowTrailingExpansion
: TextRun::ForbidTrailingExpansion); |
173 } | 174 } |
174 }; | 175 }; |
175 | 176 |
176 DEFINE_INLINE_BOX_TYPE_CASTS(InlineTextBox); | 177 DEFINE_INLINE_BOX_TYPE_CASTS(InlineTextBox); |
177 | 178 |
178 void alignSelectionRectToDevicePixels(FloatRect&); | 179 void alignSelectionRectToDevicePixels(FloatRectWillBeLayoutRect&); |
179 | 180 |
180 inline AffineTransform InlineTextBox::rotation(const FloatRect& boxRect, Rotatio
nDirection rotationDirection) | 181 inline AffineTransform InlineTextBox::rotation(const FloatRectWillBeLayoutRect&
boxRect, RotationDirection rotationDirection) |
181 { | 182 { |
182 return rotationDirection == Clockwise ? AffineTransform(0, 1, -1, 0, boxRect
.x() + boxRect.maxY(), boxRect.maxY() - boxRect.x()) | 183 return rotationDirection == Clockwise ? AffineTransform(0, 1, -1, 0, boxRect
.x() + boxRect.maxY(), boxRect.maxY() - boxRect.x()) |
183 : AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.maxY(), boxRect.x()
+ boxRect.maxY()); | 184 : AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.maxY(), boxRect.x()
+ boxRect.maxY()); |
184 } | 185 } |
185 | 186 |
186 } // namespace blink | 187 } // namespace blink |
187 | 188 |
188 #endif // InlineTextBox_h | 189 #endif // InlineTextBox_h |
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