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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "ui/views/controls/label.h" | 5 #include "ui/views/controls/label.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <cmath> | 8 #include <cmath> |
9 #include <limits> | 9 #include <limits> |
10 #include <vector> | 10 #include <vector> |
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371 OnPaintBorder(canvas); | 371 OnPaintBorder(canvas); |
372 | 372 |
373 base::string16 paint_text; | 373 base::string16 paint_text; |
374 gfx::Rect text_bounds; | 374 gfx::Rect text_bounds; |
375 int flags = 0; | 375 int flags = 0; |
376 CalculateDrawStringParams(&paint_text, &text_bounds, &flags); | 376 CalculateDrawStringParams(&paint_text, &text_bounds, &flags); |
377 PaintText(canvas, paint_text, text_bounds, flags); | 377 PaintText(canvas, paint_text, text_bounds, flags); |
378 } | 378 } |
379 | 379 |
380 void Label::OnNativeThemeChanged(const ui::NativeTheme* theme) { | 380 void Label::OnNativeThemeChanged(const ui::NativeTheme* theme) { |
381 UpdateColorsFromTheme(theme); | 381 if (!enabled_color_set_) { |
| 382 requested_enabled_color_ = theme->GetSystemColor( |
| 383 ui::NativeTheme::kColorId_LabelEnabledColor); |
| 384 } |
| 385 if (!disabled_color_set_) { |
| 386 requested_disabled_color_ = theme->GetSystemColor( |
| 387 ui::NativeTheme::kColorId_LabelDisabledColor); |
| 388 } |
| 389 if (!background_color_set_) { |
| 390 background_color_ = theme->GetSystemColor( |
| 391 ui::NativeTheme::kColorId_LabelBackgroundColor); |
| 392 } |
| 393 RecalculateColors(); |
382 } | 394 } |
383 | 395 |
384 void Label::Init(const base::string16& text, const gfx::FontList& font_list) { | 396 void Label::Init(const base::string16& text, const gfx::FontList& font_list) { |
385 font_list_ = font_list; | 397 font_list_ = font_list; |
386 enabled_color_set_ = disabled_color_set_ = background_color_set_ = false; | 398 enabled_color_set_ = disabled_color_set_ = background_color_set_ = false; |
387 auto_color_readability_ = true; | 399 auto_color_readability_ = true; |
388 UpdateColorsFromTheme(ui::NativeTheme::instance()); | |
389 horizontal_alignment_ = gfx::ALIGN_CENTER; | 400 horizontal_alignment_ = gfx::ALIGN_CENTER; |
390 line_height_ = 0; | 401 line_height_ = 0; |
391 is_multi_line_ = false; | 402 is_multi_line_ = false; |
392 is_obscured_ = false; | 403 is_obscured_ = false; |
393 allow_character_break_ = false; | 404 allow_character_break_ = false; |
394 elide_behavior_ = ELIDE_AT_END; | 405 elide_behavior_ = ELIDE_AT_END; |
395 collapse_when_hidden_ = false; | 406 collapse_when_hidden_ = false; |
396 directionality_mode_ = USE_UI_DIRECTIONALITY; | 407 directionality_mode_ = USE_UI_DIRECTIONALITY; |
397 enabled_shadow_color_ = 0; | 408 enabled_shadow_color_ = 0; |
398 disabled_shadow_color_ = 0; | 409 disabled_shadow_color_ = 0; |
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472 case gfx::ALIGN_RIGHT: | 483 case gfx::ALIGN_RIGHT: |
473 flags |= gfx::Canvas::TEXT_ALIGN_RIGHT; | 484 flags |= gfx::Canvas::TEXT_ALIGN_RIGHT; |
474 break; | 485 break; |
475 } | 486 } |
476 | 487 |
477 if (!is_multi_line_) | 488 if (!is_multi_line_) |
478 return flags; | 489 return flags; |
479 | 490 |
480 flags |= gfx::Canvas::MULTI_LINE; | 491 flags |= gfx::Canvas::MULTI_LINE; |
481 #if !defined(OS_WIN) | 492 #if !defined(OS_WIN) |
482 // Don't elide multiline labels on Linux. | 493 // Don't elide multiline labels on Linux. |
483 // Todo(davemoore): Do we depend on eliding multiline text? | 494 // Todo(davemoore): Do we depend on eliding multiline text? |
484 // Pango insists on limiting the number of lines to one if text is | 495 // Pango insists on limiting the number of lines to one if text is |
485 // elided. You can get around this if you can pass a maximum height | 496 // elided. You can get around this if you can pass a maximum height |
486 // but we don't currently have that data when we call the pango code. | 497 // but we don't currently have that data when we call the pango code. |
487 flags |= gfx::Canvas::NO_ELLIPSIS; | 498 flags |= gfx::Canvas::NO_ELLIPSIS; |
488 #endif | 499 #endif |
489 if (allow_character_break_) | 500 if (allow_character_break_) |
490 flags |= gfx::Canvas::CHARACTER_BREAK; | 501 flags |= gfx::Canvas::CHARACTER_BREAK; |
491 | 502 |
492 return flags; | 503 return flags; |
493 } | 504 } |
494 | 505 |
495 gfx::Rect Label::GetAvailableRect() const { | 506 gfx::Rect Label::GetAvailableRect() const { |
496 gfx::Rect bounds(size()); | 507 gfx::Rect bounds(size()); |
497 bounds.Inset(GetInsets()); | 508 bounds.Inset(GetInsets()); |
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527 *paint_text = | 538 *paint_text = |
528 gfx::ElideEmail(layout_text(), font_list_, GetAvailableRect().width()); | 539 gfx::ElideEmail(layout_text(), font_list_, GetAvailableRect().width()); |
529 } | 540 } |
530 | 541 |
531 *text_bounds = GetTextBounds(); | 542 *text_bounds = GetTextBounds(); |
532 *flags = ComputeDrawStringFlags(); | 543 *flags = ComputeDrawStringFlags(); |
533 if (!is_multi_line_ || (elide_behavior_ == NO_ELIDE)) | 544 if (!is_multi_line_ || (elide_behavior_ == NO_ELIDE)) |
534 *flags |= gfx::Canvas::NO_ELLIPSIS; | 545 *flags |= gfx::Canvas::NO_ELLIPSIS; |
535 } | 546 } |
536 | 547 |
537 void Label::UpdateColorsFromTheme(const ui::NativeTheme* theme) { | |
538 if (!enabled_color_set_) { | |
539 requested_enabled_color_ = theme->GetSystemColor( | |
540 ui::NativeTheme::kColorId_LabelEnabledColor); | |
541 } | |
542 if (!disabled_color_set_) { | |
543 requested_disabled_color_ = theme->GetSystemColor( | |
544 ui::NativeTheme::kColorId_LabelDisabledColor); | |
545 } | |
546 if (!background_color_set_) { | |
547 background_color_ = theme->GetSystemColor( | |
548 ui::NativeTheme::kColorId_LabelBackgroundColor); | |
549 } | |
550 RecalculateColors(); | |
551 } | |
552 | |
553 void Label::ResetCachedSize() { | 548 void Label::ResetCachedSize() { |
554 text_size_valid_ = false; | 549 text_size_valid_ = false; |
555 cached_heights_cursor_ = 0; | 550 cached_heights_cursor_ = 0; |
556 for (int i = 0; i < kCachedSizeLimit; ++i) | 551 for (int i = 0; i < kCachedSizeLimit; ++i) |
557 cached_heights_[i] = gfx::Size(); | 552 cached_heights_[i] = gfx::Size(); |
558 } | 553 } |
559 | 554 |
560 bool Label::ShouldShowDefaultTooltip() const { | 555 bool Label::ShouldShowDefaultTooltip() const { |
561 return !is_multi_line_ && !is_obscured_ && | 556 return !is_multi_line_ && !is_obscured_ && |
562 gfx::GetStringWidth(layout_text(), font_list_) > | 557 gfx::GetStringWidth(layout_text(), font_list_) > |
563 GetAvailableRect().width(); | 558 GetAvailableRect().width(); |
564 } | 559 } |
565 | 560 |
566 } // namespace views | 561 } // namespace views |
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