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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "views/view_text_utils.h" | 5 #include "views/view_text_utils.h" |
6 | 6 |
7 #include "app/bidi_line_iterator.h" | 7 #include "app/bidi_line_iterator.h" |
8 #include "base/i18n/rtl.h" | 8 #include "base/i18n/rtl.h" |
9 #include "base/i18n/word_iterator.h" | 9 #include "base/i18n/word_iterator.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "base/utf_string_conversions.h" | 11 #include "base/utf_string_conversions.h" |
12 #include "gfx/canvas_skia.h" | 12 #include "gfx/canvas.h" |
13 #include "gfx/color_utils.h" | 13 #include "gfx/color_utils.h" |
14 #include "gfx/size.h" | 14 #include "gfx/size.h" |
15 #include "views/controls/label.h" | 15 #include "views/controls/label.h" |
16 #include "views/controls/link.h" | 16 #include "views/controls/link.h" |
17 | 17 |
18 namespace view_text_utils { | 18 namespace view_text_utils { |
19 | 19 |
20 void DrawTextAndPositionUrl(gfx::Canvas* canvas, | 20 void DrawTextAndPositionUrl(gfx::Canvas* canvas, |
21 views::Label* label, | 21 views::Label* label, |
22 const std::wstring& text, | 22 const std::wstring& text, |
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111 // iterate to the next line breaking opportunity. | 111 // iterate to the next line breaking opportunity. |
112 while (iter.Advance()) { | 112 while (iter.Advance()) { |
113 // Get the word and figure out the dimensions. | 113 // Get the word and figure out the dimensions. |
114 std::wstring word; | 114 std::wstring word; |
115 if (!ltr_within_rtl) | 115 if (!ltr_within_rtl) |
116 word = UTF16ToWide(iter.GetWord()); // Get the next word. | 116 word = UTF16ToWide(iter.GetWord()); // Get the next word. |
117 else | 117 else |
118 word = text; // Draw the whole text at once. | 118 word = text; // Draw the whole text at once. |
119 | 119 |
120 int w = font.GetStringWidth(word), h = font.height(); | 120 int w = font.GetStringWidth(word), h = font.height(); |
121 gfx::CanvasSkia::SizeStringInt(word, font, &w, &h, flags); | 121 canvas->SizeStringInt(word, font, &w, &h, flags); |
122 | 122 |
123 // If we exceed the boundaries, we need to wrap. | 123 // If we exceed the boundaries, we need to wrap. |
124 WrapIfWordDoesntFit(w, font.height(), position, bounds); | 124 WrapIfWordDoesntFit(w, font.height(), position, bounds); |
125 | 125 |
126 int x = label->MirroredXCoordinateInsideView(position->width()) + | 126 int x = label->MirroredXCoordinateInsideView(position->width()) + |
127 bounds.x(); | 127 bounds.x(); |
128 if (text_direction_is_rtl) { | 128 if (text_direction_is_rtl) { |
129 x -= w; | 129 x -= w; |
130 // When drawing LTR strings inside RTL text we need to make sure we | 130 // When drawing LTR strings inside RTL text we need to make sure we |
131 // draw the trailing space (if one exists after the LTR text) to the | 131 // draw the trailing space (if one exists after the LTR text) to the |
132 // left of the LTR string. | 132 // left of the LTR string. |
133 if (ltr_within_rtl && word[word.size() - 1] == L' ') { | 133 if (ltr_within_rtl && word[word.size() - 1] == L' ') { |
134 int space_w = font.GetStringWidth(L" "), space_h = font.height(); | 134 int space_w = font.GetStringWidth(L" "), space_h = font.height(); |
135 gfx::CanvasSkia::SizeStringInt(L" ", font, &space_w, &space_h, flags); | 135 canvas->SizeStringInt(L" ", font, &space_w, &space_h, flags); |
136 x += space_w; | 136 x += space_w; |
137 } | 137 } |
138 } | 138 } |
139 int y = position->height() + bounds.y(); | 139 int y = position->height() + bounds.y(); |
140 | 140 |
141 // Draw the text on the screen (mirrored, if RTL run). | 141 // Draw the text on the screen (mirrored, if RTL run). |
142 canvas->DrawStringInt(word, font, text_color, x, y, w, font.height(), | 142 canvas->DrawStringInt(word, font, text_color, x, y, w, font.height(), |
143 flags); | 143 flags); |
144 | 144 |
145 if (word.size() > 0 && word[word.size() - 1] == L'\x0a') { | 145 if (word.size() > 0 && word[word.size() - 1] == L'\x0a') { |
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160 int font_height, | 160 int font_height, |
161 gfx::Size* position, | 161 gfx::Size* position, |
162 const gfx::Rect& bounds) { | 162 const gfx::Rect& bounds) { |
163 if (position->width() + word_width > bounds.right()) { | 163 if (position->width() + word_width > bounds.right()) { |
164 position->set_width(0); | 164 position->set_width(0); |
165 position->Enlarge(0, font_height); | 165 position->Enlarge(0, font_height); |
166 } | 166 } |
167 } | 167 } |
168 | 168 |
169 } // namespace view_text_utils | 169 } // namespace view_text_utils |
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