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1 /* | 1 /* |
2 * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved. | 2 * Copyright (C) Research In Motion Limited 2010-2012. 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 #include "core/layout/svg/SVGTextQuery.h" | 20 #include "core/layout/svg/SVGTextQuery.h" |
21 | 21 |
22 #include "core/layout/LayoutBlockFlow.h" | 22 #include "core/layout/LayoutBlockFlow.h" |
23 #include "core/layout/LayoutInline.h" | 23 #include "core/layout/LayoutInline.h" |
24 #include "core/layout/api/LineLayoutSVGInlineText.h" | 24 #include "core/layout/api/LineLayoutSVGInlineText.h" |
25 #include "core/layout/line/InlineFlowBox.h" | 25 #include "core/layout/line/InlineFlowBox.h" |
26 #include "core/layout/svg/LayoutSVGInlineText.h" | 26 #include "core/layout/svg/LayoutSVGInlineText.h" |
27 #include "core/layout/svg/SVGTextFragment.h" | 27 #include "core/layout/svg/SVGTextFragment.h" |
28 #include "core/layout/svg/SVGTextMetrics.h" | 28 #include "core/layout/svg/SVGTextMetrics.h" |
29 #include "core/layout/svg/line/SVGInlineTextBox.h" | 29 #include "core/layout/svg/line/SVGInlineTextBox.h" |
30 #include "platform/FloatConversion.h" | |
31 #include "wtf/MathExtras.h" | 30 #include "wtf/MathExtras.h" |
32 #include "wtf/Vector.h" | 31 #include "wtf/Vector.h" |
33 #include <algorithm> | 32 #include <algorithm> |
34 | 33 |
35 namespace blink { | 34 namespace blink { |
36 | 35 |
37 // Base structure for callback user data | 36 // Base structure for callback user data |
38 struct QueryData { | 37 struct QueryData { |
39 QueryData() | 38 QueryData() |
40 : isVerticalText(false) | 39 : isVerticalText(false) |
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391 int startPosition = data->position; | 390 int startPosition = data->position; |
392 int endPosition = startPosition + 1; | 391 int endPosition = startPosition + 1; |
393 if (!mapStartEndPositionsIntoFragmentCoordinates(queryData, fragment, startP
osition, endPosition)) | 392 if (!mapStartEndPositionsIntoFragmentCoordinates(queryData, fragment, startP
osition, endPosition)) |
394 return false; | 393 return false; |
395 | 394 |
396 if (!fragment.isTransformed()) { | 395 if (!fragment.isTransformed()) { |
397 data->rotation = 0; | 396 data->rotation = 0; |
398 } else { | 397 } else { |
399 AffineTransform fragmentTransform = fragment.buildFragmentTransform(SVGT
extFragment::TransformIgnoringTextLength); | 398 AffineTransform fragmentTransform = fragment.buildFragmentTransform(SVGT
extFragment::TransformIgnoringTextLength); |
400 fragmentTransform.scale(1 / fragmentTransform.xScale(), 1 / fragmentTran
sform.yScale()); | 399 fragmentTransform.scale(1 / fragmentTransform.xScale(), 1 / fragmentTran
sform.yScale()); |
401 data->rotation = narrowPrecisionToFloat(rad2deg(atan2(fragmentTransform.
b(), fragmentTransform.a()))); | 400 data->rotation = clampTo<float>(rad2deg(atan2(fragmentTransform.b(), fra
gmentTransform.a()))); |
402 } | 401 } |
403 return true; | 402 return true; |
404 } | 403 } |
405 | 404 |
406 float SVGTextQuery::rotationOfCharacter(unsigned position) const | 405 float SVGTextQuery::rotationOfCharacter(unsigned position) const |
407 { | 406 { |
408 RotationOfCharacterData data(position); | 407 RotationOfCharacterData data(position); |
409 logicalQuery(m_queryRootLayoutObject, &data, rotationOfCharacterCallback); | 408 logicalQuery(m_queryRootLayoutObject, &data, rotationOfCharacterCallback); |
410 return data.rotation; | 409 return data.rotation; |
411 } | 410 } |
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574 } | 573 } |
575 | 574 |
576 int SVGTextQuery::characterNumberAtPosition(const FloatPoint& position) const | 575 int SVGTextQuery::characterNumberAtPosition(const FloatPoint& position) const |
577 { | 576 { |
578 CharacterNumberAtPositionData data(position); | 577 CharacterNumberAtPositionData data(position); |
579 spatialQuery(m_queryRootLayoutObject, &data, characterNumberAtPositionCallba
ck); | 578 spatialQuery(m_queryRootLayoutObject, &data, characterNumberAtPositionCallba
ck); |
580 return data.characterNumberWithin(m_queryRootLayoutObject); | 579 return data.characterNumberWithin(m_queryRootLayoutObject); |
581 } | 580 } |
582 | 581 |
583 } // namespace blink | 582 } // namespace blink |
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