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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 VIEWS_CONTROLS_LABEL_H_ | 5 #ifndef VIEWS_CONTROLS_LABEL_H_ |
| 6 #define VIEWS_CONTROLS_LABEL_H_ | 6 #define VIEWS_CONTROLS_LABEL_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <string> | 9 #include <string> |
| 10 | 10 |
| 11 #include "base/gtest_prod_util.h" | 11 #include "base/gtest_prod_util.h" |
| 12 #include "base/string16.h" |
| 12 #include "googleurl/src/gurl.h" | 13 #include "googleurl/src/gurl.h" |
| 13 #include "third_party/skia/include/core/SkColor.h" | 14 #include "third_party/skia/include/core/SkColor.h" |
| 14 #include "ui/gfx/font.h" | 15 #include "ui/gfx/font.h" |
| 15 #include "views/view.h" | 16 #include "views/view.h" |
| 16 | 17 |
| 17 namespace views { | 18 namespace views { |
| 18 | 19 |
| 19 ///////////////////////////////////////////////////////////////////////////// | 20 ///////////////////////////////////////////////////////////////////////////// |
| 20 // | 21 // |
| 21 // Label class | 22 // Label class |
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| 45 AUTO_DETECT_ALIGNMENT | 46 AUTO_DETECT_ALIGNMENT |
| 46 }; | 47 }; |
| 47 | 48 |
| 48 // The view class name. | 49 // The view class name. |
| 49 static const char kViewClassName[]; | 50 static const char kViewClassName[]; |
| 50 | 51 |
| 51 // The padding for the focus border when rendering focused text. | 52 // The padding for the focus border when rendering focused text. |
| 52 static const int kFocusBorderPadding; | 53 static const int kFocusBorderPadding; |
| 53 | 54 |
| 54 Label(); | 55 Label(); |
| 55 explicit Label(const std::wstring& text); | 56 explicit Label(const string16& text); |
| 56 Label(const std::wstring& text, const gfx::Font& font); | 57 Label(const string16& text, const gfx::Font& font); |
| 57 virtual ~Label(); | 58 virtual ~Label(); |
| 58 | 59 |
| 59 // Set the font. | 60 // Set the font. |
| 60 virtual void SetFont(const gfx::Font& font); | 61 virtual void SetFont(const gfx::Font& font); |
| 61 | 62 |
| 62 // Set the label text. | 63 // Set the label text. |
| 63 void SetText(const std::wstring& text); | 64 void SetText(const string16& text); |
| 64 | 65 |
| 65 // Return the font used by this label. | 66 // Return the font used by this label. |
| 66 gfx::Font font() const { return font_; } | 67 gfx::Font font() const { return font_; } |
| 67 | 68 |
| 68 // Return the label text. | 69 // Return the label text. |
| 69 const std::wstring GetText() const; | 70 const string16 GetText() const; |
| 70 | 71 |
| 71 // Set URL Value - text_ is set to spec(). | 72 // Set URL Value - text_ is set to spec(). |
| 72 void SetURL(const GURL& url); | 73 void SetURL(const GURL& url); |
| 73 | 74 |
| 74 // Return the label URL. | 75 // Return the label URL. |
| 75 const GURL GetURL() const; | 76 const GURL GetURL() const; |
| 76 | 77 |
| 77 // Set the color | 78 // Set the color |
| 78 virtual void SetColor(const SkColor& color); | 79 virtual void SetColor(const SkColor& color); |
| 79 | 80 |
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| 175 // Gets the tooltip text for labels that are wider than their bounds, except | 176 // Gets the tooltip text for labels that are wider than their bounds, except |
| 176 // when the label is multiline, in which case it just returns false (no | 177 // when the label is multiline, in which case it just returns false (no |
| 177 // tooltip). If a custom tooltip has been specified with SetTooltipText() | 178 // tooltip). If a custom tooltip has been specified with SetTooltipText() |
| 178 // it is returned instead. | 179 // it is returned instead. |
| 179 virtual bool GetTooltipText(const gfx::Point& p, string16* tooltip) OVERRIDE; | 180 virtual bool GetTooltipText(const gfx::Point& p, string16* tooltip) OVERRIDE; |
| 180 | 181 |
| 181 protected: | 182 protected: |
| 182 // Called by Paint to paint the text. Override this to change how | 183 // Called by Paint to paint the text. Override this to change how |
| 183 // text is painted. | 184 // text is painted. |
| 184 virtual void PaintText(gfx::Canvas* canvas, | 185 virtual void PaintText(gfx::Canvas* canvas, |
| 185 const std::wstring& text, | 186 const string16& text, |
| 186 const gfx::Rect& text_bounds, | 187 const gfx::Rect& text_bounds, |
| 187 int flags); | 188 int flags); |
| 188 | 189 |
| 189 void invalidate_text_size() { text_size_valid_ = false; } | 190 void invalidate_text_size() { text_size_valid_ = false; } |
| 190 | 191 |
| 191 virtual gfx::Size GetTextSize() const; | 192 virtual gfx::Size GetTextSize() const; |
| 192 | 193 |
| 193 // Overridden from View: | 194 // Overridden from View: |
| 194 // Overridden to dirty our text bounds if we're multi-line. | 195 // Overridden to dirty our text bounds if we're multi-line. |
| 195 virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE; | 196 virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE; |
| 196 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | 197 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; |
| 197 // If the mouse is over the label, and a mouse over background has been | 198 // If the mouse is over the label, and a mouse over background has been |
| 198 // specified, its used. Otherwise super's implementation is invoked. | 199 // specified, its used. Otherwise super's implementation is invoked. |
| 199 virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE; | 200 virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE; |
| 200 | 201 |
| 201 private: | 202 private: |
| 202 // These tests call CalculateDrawStringParams in order to verify the | 203 // These tests call CalculateDrawStringParams in order to verify the |
| 203 // calculations done for drawing text. | 204 // calculations done for drawing text. |
| 204 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawSingleLineString); | 205 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawSingleLineString); |
| 205 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawMultiLineString); | 206 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawMultiLineString); |
| 206 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawSingleLineStringInRTL); | 207 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawSingleLineStringInRTL); |
| 207 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawMultiLineStringInRTL); | 208 FRIEND_TEST_ALL_PREFIXES(LabelTest, DrawMultiLineStringInRTL); |
| 208 | 209 |
| 209 static gfx::Font GetDefaultFont(); | 210 static gfx::Font GetDefaultFont(); |
| 210 | 211 |
| 211 void Init(const std::wstring& text, const gfx::Font& font); | 212 void Init(const string16& text, const gfx::Font& font); |
| 212 | 213 |
| 213 // If the mouse is over the text, SetContainsMouse(true) is invoked, otherwise | 214 // If the mouse is over the text, SetContainsMouse(true) is invoked, otherwise |
| 214 // SetContainsMouse(false) is invoked. | 215 // SetContainsMouse(false) is invoked. |
| 215 void UpdateContainsMouse(const MouseEvent& event); | 216 void UpdateContainsMouse(const MouseEvent& event); |
| 216 | 217 |
| 217 // Updates whether the mouse is contained in the Label. If the new value | 218 // Updates whether the mouse is contained in the Label. If the new value |
| 218 // differs from the current value, and a mouse over background is specified, | 219 // differs from the current value, and a mouse over background is specified, |
| 219 // SchedulePaint is invoked. | 220 // SchedulePaint is invoked. |
| 220 void SetContainsMouse(bool contains_mouse); | 221 void SetContainsMouse(bool contains_mouse); |
| 221 | 222 |
| 222 // Returns where the text is drawn, in the receivers coordinate system. | 223 // Returns where the text is drawn, in the receivers coordinate system. |
| 223 gfx::Rect GetTextBounds() const; | 224 gfx::Rect GetTextBounds() const; |
| 224 | 225 |
| 225 int ComputeMultiLineFlags() const; | 226 int ComputeMultiLineFlags() const; |
| 226 | 227 |
| 227 gfx::Rect GetAvailableRect() const; | 228 gfx::Rect GetAvailableRect() const; |
| 228 | 229 |
| 229 // Returns parameters to be used for the DrawString call. | 230 // Returns parameters to be used for the DrawString call. |
| 230 void CalculateDrawStringParams(std::wstring* paint_text, | 231 void CalculateDrawStringParams(string16* paint_text, |
| 231 gfx::Rect* text_bounds, | 232 gfx::Rect* text_bounds, |
| 232 int* flags) const; | 233 int* flags) const; |
| 233 | 234 |
| 234 string16 text_; | 235 string16 text_; |
| 235 GURL url_; | 236 GURL url_; |
| 236 gfx::Font font_; | 237 gfx::Font font_; |
| 237 SkColor color_; | 238 SkColor color_; |
| 238 mutable gfx::Size text_size_; | 239 mutable gfx::Size text_size_; |
| 239 mutable bool text_size_valid_; | 240 mutable bool text_size_valid_; |
| 240 bool is_multi_line_; | 241 bool is_multi_line_; |
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| 259 // allows this view to reserve space for a focus border that it otherwise | 260 // allows this view to reserve space for a focus border that it otherwise |
| 260 // might not have because it is not itself focusable. | 261 // might not have because it is not itself focusable. |
| 261 bool has_focus_border_; | 262 bool has_focus_border_; |
| 262 | 263 |
| 263 DISALLOW_COPY_AND_ASSIGN(Label); | 264 DISALLOW_COPY_AND_ASSIGN(Label); |
| 264 }; | 265 }; |
| 265 | 266 |
| 266 } // namespace views | 267 } // namespace views |
| 267 | 268 |
| 268 #endif // VIEWS_CONTROLS_LABEL_H_ | 269 #endif // VIEWS_CONTROLS_LABEL_H_ |
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