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Side by Side Diff: ui/views/controls/styled_label.h

Issue 24012002: Move Range code to gfx. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: d Created 7 years, 3 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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 #ifndef UI_VIEWS_CONTROLS_STYLED_LABEL_H_ 5 #ifndef UI_VIEWS_CONTROLS_STYLED_LABEL_H_
6 #define UI_VIEWS_CONTROLS_STYLED_LABEL_H_ 6 #define UI_VIEWS_CONTROLS_STYLED_LABEL_H_
7 7
8 #include <map> 8 #include <map>
9 #include <queue> 9 #include <queue>
10 10
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/strings/string16.h" 12 #include "base/strings/string16.h"
13 #include "third_party/skia/include/core/SkColor.h" 13 #include "third_party/skia/include/core/SkColor.h"
14 #include "ui/base/range/range.h" 14 #include "ui/gfx/range/range.h"
15 #include "ui/gfx/size.h" 15 #include "ui/gfx/size.h"
16 #include "ui/views/controls/link_listener.h" 16 #include "ui/views/controls/link_listener.h"
17 #include "ui/views/view.h" 17 #include "ui/views/view.h"
18 18
19 namespace views { 19 namespace views {
20 20
21 class Link; 21 class Link;
22 class StyledLabelListener; 22 class StyledLabelListener;
23 23
24 // A class which can apply mixed styles to a block of text. Currently, text is 24 // A class which can apply mixed styles to a block of text. Currently, text is
(...skipping 30 matching lines...) Expand all
55 55
56 // Note that any trailing whitespace in |text| will be trimmed. 56 // Note that any trailing whitespace in |text| will be trimmed.
57 StyledLabel(const string16& text, StyledLabelListener* listener); 57 StyledLabel(const string16& text, StyledLabelListener* listener);
58 virtual ~StyledLabel(); 58 virtual ~StyledLabel();
59 59
60 // Sets the text to be displayed, and clears any previous styling. 60 // Sets the text to be displayed, and clears any previous styling.
61 void SetText(const string16& text); 61 void SetText(const string16& text);
62 62
63 // Marks the given range within |text_| with style defined by |style_info|. 63 // Marks the given range within |text_| with style defined by |style_info|.
64 // |range| must be contained in |text_|. 64 // |range| must be contained in |text_|.
65 void AddStyleRange(const ui::Range& range, const RangeStyleInfo& style_info); 65 void AddStyleRange(const gfx::Range& range, const RangeStyleInfo& style_info);
66 66
67 // Sets the default style to use for any part of the text that isn't within 67 // Sets the default style to use for any part of the text that isn't within
68 // a range set by AddStyleRange. 68 // a range set by AddStyleRange.
69 void SetDefaultStyle(const RangeStyleInfo& style_info); 69 void SetDefaultStyle(const RangeStyleInfo& style_info);
70 70
71 // Sets the color of the background on which the label is drawn. This won't 71 // Sets the color of the background on which the label is drawn. This won't
72 // be explicitly drawn, but the label will force the text color to be 72 // be explicitly drawn, but the label will force the text color to be
73 // readable over it. 73 // readable over it.
74 void SetDisplayedOnBackgroundColor(SkColor color); 74 void SetDisplayedOnBackgroundColor(SkColor color);
75 SkColor displayed_on_background_color() const { 75 SkColor displayed_on_background_color() const {
76 return displayed_on_background_color_; 76 return displayed_on_background_color_;
77 } 77 }
78 78
79 // View implementation: 79 // View implementation:
80 virtual gfx::Insets GetInsets() const OVERRIDE; 80 virtual gfx::Insets GetInsets() const OVERRIDE;
81 virtual int GetHeightForWidth(int w) OVERRIDE; 81 virtual int GetHeightForWidth(int w) OVERRIDE;
82 virtual void Layout() OVERRIDE; 82 virtual void Layout() OVERRIDE;
83 virtual void PreferredSizeChanged() OVERRIDE; 83 virtual void PreferredSizeChanged() OVERRIDE;
84 84
85 // LinkListener implementation: 85 // LinkListener implementation:
86 virtual void LinkClicked(Link* source, int event_flags) OVERRIDE; 86 virtual void LinkClicked(Link* source, int event_flags) OVERRIDE;
87 87
88 private: 88 private:
89 struct StyleRange { 89 struct StyleRange {
90 StyleRange(const ui::Range& range, 90 StyleRange(const gfx::Range& range,
91 const RangeStyleInfo& style_info) 91 const RangeStyleInfo& style_info)
92 : range(range), 92 : range(range),
93 style_info(style_info) { 93 style_info(style_info) {
94 } 94 }
95 ~StyleRange() {} 95 ~StyleRange() {}
96 96
97 bool operator<(const StyleRange& other) const; 97 bool operator<(const StyleRange& other) const;
98 98
99 ui::Range range; 99 gfx::Range range;
100 RangeStyleInfo style_info; 100 RangeStyleInfo style_info;
101 }; 101 };
102 102
103 // Calculates how to layout child views, creates them and sets their size 103 // Calculates how to layout child views, creates them and sets their size
104 // and position. |width| is the horizontal space, in pixels, that the view 104 // and position. |width| is the horizontal space, in pixels, that the view
105 // has to work with. If |dry_run| is true, the view hierarchy is not touched. 105 // has to work with. If |dry_run| is true, the view hierarchy is not touched.
106 // The return value is the height in pixels. 106 // The return value is the height in pixels.
107 int CalculateAndDoLayout(int width, bool dry_run); 107 int CalculateAndDoLayout(int width, bool dry_run);
108 108
109 // The text to display. 109 // The text to display.
110 string16 text_; 110 string16 text_;
111 111
112 // The default style to use for any part of the text that isn't within 112 // The default style to use for any part of the text that isn't within
113 // a range in |style_ranges_|. 113 // a range in |style_ranges_|.
114 RangeStyleInfo default_style_info_; 114 RangeStyleInfo default_style_info_;
115 115
116 // The listener that will be informed of link clicks. 116 // The listener that will be informed of link clicks.
117 StyledLabelListener* listener_; 117 StyledLabelListener* listener_;
118 118
119 // The ranges that should be linkified, sorted by start position. 119 // The ranges that should be linkified, sorted by start position.
120 std::priority_queue<StyleRange> style_ranges_; 120 std::priority_queue<StyleRange> style_ranges_;
121 121
122 // A mapping from a view to the range it corresponds to in |text_|. Only views 122 // A mapping from a view to the range it corresponds to in |text_|. Only views
123 // that correspond to ranges with is_link style set will be added to the map. 123 // that correspond to ranges with is_link style set will be added to the map.
124 std::map<View*, ui::Range> link_targets_; 124 std::map<View*, gfx::Range> link_targets_;
125 125
126 // This variable saves the result of the last GetHeightForWidth call in order 126 // This variable saves the result of the last GetHeightForWidth call in order
127 // to avoid repeated calculation. 127 // to avoid repeated calculation.
128 gfx::Size calculated_size_; 128 gfx::Size calculated_size_;
129 129
130 // Background color on which the label is drawn, for auto color readability. 130 // Background color on which the label is drawn, for auto color readability.
131 SkColor displayed_on_background_color_; 131 SkColor displayed_on_background_color_;
132 bool displayed_on_background_color_set_; 132 bool displayed_on_background_color_set_;
133 133
134 DISALLOW_COPY_AND_ASSIGN(StyledLabel); 134 DISALLOW_COPY_AND_ASSIGN(StyledLabel);
135 }; 135 };
136 136
137 } // namespace views 137 } // namespace views
138 138
139 #endif // UI_VIEWS_CONTROLS_STYLED_LABEL_H_ 139 #endif // UI_VIEWS_CONTROLS_STYLED_LABEL_H_
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