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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/platform/graphics/FloatRect.h" | 23 #include "core/platform/graphics/FloatRect.h" |
| 24 #include "core/rendering/svg/SVGTextFragment.h" | 24 #include "core/rendering/svg/SVGTextFragment.h" |
| 25 #include "core/svg/SVGPoint.h" |
| 25 #include <wtf/Vector.h> | 26 #include <wtf/Vector.h> |
| 26 | 27 |
| 27 namespace WebCore { | 28 namespace WebCore { |
| 28 | 29 |
| 29 class InlineFlowBox; | 30 class InlineFlowBox; |
| 30 class RenderObject; | 31 class RenderObject; |
| 31 class SVGInlineTextBox; | 32 class SVGInlineTextBox; |
| 32 | 33 |
| 33 class SVGTextQuery { | 34 class SVGTextQuery { |
| 34 public: | 35 public: |
| 35 SVGTextQuery(RenderObject*); | 36 SVGTextQuery(RenderObject*); |
| 36 | 37 |
| 37 unsigned numberOfCharacters() const; | 38 unsigned numberOfCharacters() const; |
| 38 float textLength() const; | 39 float textLength() const; |
| 39 float subStringLength(unsigned startPosition, unsigned length) const; | 40 float subStringLength(unsigned startPosition, unsigned length) const; |
| 40 FloatPoint startPositionOfCharacter(unsigned position) const; | 41 FloatPoint startPositionOfCharacter(unsigned position) const; |
| 41 FloatPoint endPositionOfCharacter(unsigned position) const; | 42 FloatPoint endPositionOfCharacter(unsigned position) const; |
| 42 float rotationOfCharacter(unsigned position) const; | 43 float rotationOfCharacter(unsigned position) const; |
| 43 FloatRect extentOfCharacter(unsigned position) const; | 44 FloatRect extentOfCharacter(unsigned position) const; |
| 44 int characterNumberAtPosition(const FloatPoint&) const; | 45 int characterNumberAtPosition(const SVGPoint&) const; |
| 45 | 46 |
| 46 // Public helper struct. Private classes in SVGTextQuery inherit from it. | 47 // Public helper struct. Private classes in SVGTextQuery inherit from it. |
| 47 struct Data; | 48 struct Data; |
| 48 | 49 |
| 49 private: | 50 private: |
| 50 typedef bool (SVGTextQuery::*ProcessTextFragmentCallback)(Data*, const SVGTe
xtFragment&) const; | 51 typedef bool (SVGTextQuery::*ProcessTextFragmentCallback)(Data*, const SVGTe
xtFragment&) const; |
| 51 bool executeQuery(Data*, ProcessTextFragmentCallback) const; | 52 bool executeQuery(Data*, ProcessTextFragmentCallback) const; |
| 52 | 53 |
| 53 void collectTextBoxesInFlowBox(InlineFlowBox*); | 54 void collectTextBoxesInFlowBox(InlineFlowBox*); |
| 54 bool mapStartEndPositionsIntoFragmentCoordinates(Data*, const SVGTextFragmen
t&, int& startPosition, int& endPosition) const; | 55 bool mapStartEndPositionsIntoFragmentCoordinates(Data*, const SVGTextFragmen
t&, int& startPosition, int& endPosition) const; |
| 55 void modifyStartEndPositionsRespectingLigatures(Data*, int& startPosition, i
nt& endPosition) const; | 56 void modifyStartEndPositionsRespectingLigatures(Data*, int& startPosition, i
nt& endPosition) const; |
| 56 | 57 |
| 57 private: | 58 private: |
| 58 bool numberOfCharactersCallback(Data*, const SVGTextFragment&) const; | 59 bool numberOfCharactersCallback(Data*, const SVGTextFragment&) const; |
| 59 bool textLengthCallback(Data*, const SVGTextFragment&) const; | 60 bool textLengthCallback(Data*, const SVGTextFragment&) const; |
| 60 bool subStringLengthCallback(Data*, const SVGTextFragment&) const; | 61 bool subStringLengthCallback(Data*, const SVGTextFragment&) const; |
| 61 bool startPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; | 62 bool startPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; |
| 62 bool endPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; | 63 bool endPositionOfCharacterCallback(Data*, const SVGTextFragment&) const; |
| 63 bool rotationOfCharacterCallback(Data*, const SVGTextFragment&) const; | 64 bool rotationOfCharacterCallback(Data*, const SVGTextFragment&) const; |
| 64 bool extentOfCharacterCallback(Data*, const SVGTextFragment&) const; | 65 bool extentOfCharacterCallback(Data*, const SVGTextFragment&) const; |
| 65 bool characterNumberAtPositionCallback(Data*, const SVGTextFragment&) const; | 66 bool characterNumberAtPositionCallback(Data*, const SVGTextFragment&) const; |
| 66 | 67 |
| 67 private: | 68 private: |
| 68 Vector<SVGInlineTextBox*> m_textBoxes; | 69 Vector<SVGInlineTextBox*> m_textBoxes; |
| 69 }; | 70 }; |
| 70 | 71 |
| 71 } | 72 } |
| 72 | 73 |
| 73 #endif | 74 #endif |
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