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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; |
| (...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 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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