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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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