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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 #ifndef SVGTextMetrics_h | 20 #ifndef SVGTextMetrics_h |
| 21 #define SVGTextMetrics_h | 21 #define SVGTextMetrics_h |
| 22 | 22 |
| 23 #include "platform/fonts/Glyph.h" | |
| 24 #include "platform/text/TextDirection.h" | 23 #include "platform/text/TextDirection.h" |
| 25 #include "wtf/text/WTFString.h" | |
| 26 | 24 |
| 27 namespace blink { | 25 namespace blink { |
| 28 | 26 |
| 29 class RenderSVGInlineText; | 27 class RenderSVGInlineText; |
| 30 class TextRun; | 28 class TextRun; |
| 31 | 29 |
| 32 class SVGTextMetrics { | 30 class SVGTextMetrics { |
| 33 public: | 31 public: |
| 34 enum MetricsType { | 32 enum MetricsType { |
| 35 SkippedSpaceMetrics | 33 SkippedSpaceMetrics |
| 36 }; | 34 }; |
| 37 | 35 |
| 38 SVGTextMetrics(); | 36 SVGTextMetrics(); |
| 39 SVGTextMetrics(MetricsType); | 37 SVGTextMetrics(MetricsType); |
| 40 SVGTextMetrics(RenderSVGInlineText*, unsigned position, unsigned length, flo
at width, Glyph glyphNameGlyphId); | 38 SVGTextMetrics(RenderSVGInlineText*, unsigned position, unsigned length, flo
at width); |
| 41 | 39 |
| 42 // FIXME: Migrate away from these to the two below. | 40 // FIXME: Migrate away from these to the two below. |
| 43 static SVGTextMetrics measureCharacterRange(RenderSVGInlineText*, unsigned p
osition, unsigned length); | 41 static SVGTextMetrics measureCharacterRange(RenderSVGInlineText*, unsigned p
osition, unsigned length); |
| 44 static TextRun constructTextRun(RenderSVGInlineText*, unsigned position, uns
igned length); | 42 static TextRun constructTextRun(RenderSVGInlineText*, unsigned position, uns
igned length); |
| 45 | 43 |
| 46 static SVGTextMetrics measureCharacterRange(RenderSVGInlineText*, unsigned p
osition, unsigned length, TextDirection); | 44 static SVGTextMetrics measureCharacterRange(RenderSVGInlineText*, unsigned p
osition, unsigned length, TextDirection); |
| 47 static TextRun constructTextRun(RenderSVGInlineText*, unsigned position, uns
igned length, TextDirection); | 45 static TextRun constructTextRun(RenderSVGInlineText*, unsigned position, uns
igned length, TextDirection); |
| 48 | 46 |
| 49 bool isEmpty() const { return !m_width && !m_height && m_length <= 1; } | 47 bool isEmpty() const { return !m_width && !m_height && m_length <= 1; } |
| 50 | 48 |
| 51 float width() const { return m_width; } | 49 float width() const { return m_width; } |
| 52 void setWidth(float width) { m_width = width; } | 50 void setWidth(float width) { m_width = width; } |
| 53 | 51 |
| 54 float height() const { return m_height; } | 52 float height() const { return m_height; } |
| 55 unsigned length() const { return m_length; } | 53 unsigned length() const { return m_length; } |
| 56 | 54 |
| 57 // Only useful when measuring individual characters, to lookup ligatures. | |
| 58 Glyph glyph() const { return m_glyph; } | |
| 59 | |
| 60 private: | 55 private: |
| 61 SVGTextMetrics(RenderSVGInlineText*, const TextRun&); | 56 SVGTextMetrics(RenderSVGInlineText*, const TextRun&); |
| 62 | 57 |
| 63 float m_width; | 58 float m_width; |
| 64 float m_height; | 59 float m_height; |
| 65 unsigned m_length; | 60 unsigned m_length; |
| 66 Glyph m_glyph; | |
| 67 }; | 61 }; |
| 68 | 62 |
| 69 } // namespace blink | 63 } // namespace blink |
| 70 | 64 |
| 71 #endif | 65 #endif |
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