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1 /* | 1 /* |
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2010. 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 #ifndef SVGTextQuery_h | 20 #ifndef SVGTextQuery_h |
21 #define SVGTextQuery_h | 21 #define SVGTextQuery_h |
22 | 22 |
23 #include "core/layout/svg/SVGTextFragment.h" | |
24 #include "platform/geometry/FloatPoint.h" | 23 #include "platform/geometry/FloatPoint.h" |
25 #include "platform/geometry/FloatRect.h" | 24 #include "platform/geometry/FloatRect.h" |
26 #include "wtf/Vector.h" | |
27 | 25 |
28 namespace blink { | 26 namespace blink { |
29 | 27 |
30 class InlineFlowBox; | |
31 class LayoutObject; | 28 class LayoutObject; |
32 class SVGInlineTextBox; | |
33 | 29 |
34 class SVGTextQuery { | 30 class SVGTextQuery { |
35 public: | 31 public: |
36 SVGTextQuery(LayoutObject*); | 32 SVGTextQuery(LayoutObject* layoutObject) : m_queryRootLayoutObject(layoutObj ect) { } |
37 | 33 |
38 unsigned numberOfCharacters() const; | 34 unsigned numberOfCharacters() const; |
39 float textLength() const; | 35 float textLength() const; |
40 float subStringLength(unsigned startPosition, unsigned length) const; | 36 float subStringLength(unsigned startPosition, unsigned length) const; |
41 FloatPoint startPositionOfCharacter(unsigned position) const; | 37 FloatPoint startPositionOfCharacter(unsigned position) const; |
42 FloatPoint endPositionOfCharacter(unsigned position) const; | 38 FloatPoint endPositionOfCharacter(unsigned position) const; |
43 float rotationOfCharacter(unsigned position) const; | 39 float rotationOfCharacter(unsigned position) const; |
44 FloatRect extentOfCharacter(unsigned position) const; | 40 FloatRect extentOfCharacter(unsigned position) const; |
45 int characterNumberAtPosition(const FloatPoint&) const; | 41 int characterNumberAtPosition(const FloatPoint&) const; |
46 | 42 |
47 // Public helper struct. Private classes in SVGTextQuery inherit from it. | |
48 struct Data; | |
49 | |
50 private: | 43 private: |
51 typedef bool (SVGTextQuery::*ProcessTextFragmentCallback)(Data*, const SVGTe xtFragment&) const; | 44 LayoutObject* m_queryRootLayoutObject; |
Erik Dahlström (inactive)
2015/04/02 14:15:52
Is the LayoutObject expected to stay the same and
fs
2015/04/02 14:24:50
It is, but it can be NULL, so it can't be a refere
| |
52 bool executeQuery(Data*, ProcessTextFragmentCallback) const; | |
53 | |
54 void collectTextBoxesInFlowBox(InlineFlowBox*); | |
55 bool mapStartEndPositionsIntoFragmentCoordinates(Data*, const SVGTextFragmen t&, int& startPosition, int& endPosition) const; | |
56 void modifyStartEndPositionsRespectingLigatures(Data*, const SVGTextFragment &, int& startPosition, int& endPosition) const; | |
57 | |
58 private: | |
59 bool numberOfCharactersCallback(Data*, const SVGTextFragment&) const; | |
60 bool textLengthCallback(Data*, const SVGTextFragment&) const; | |
61 bool subStringLengthCallback(Data*, const SVGTextFragment&) const; | |
62 bool startPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; | |
63 bool endPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; | |
64 bool rotationOfCharacterCallback(Data*, const SVGTextFragment&) const; | |
65 bool extentOfCharacterCallback(Data*, const SVGTextFragment&) const; | |
66 bool characterNumberAtPositionCallback(Data*, const SVGTextFragment&) const; | |
67 | |
68 private: | |
69 Vector<SVGInlineTextBox*> m_textBoxes; | |
70 }; | 45 }; |
71 | 46 |
72 } | 47 } |
73 | 48 |
74 #endif | 49 #endif |
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