views: Switch Checkbox over to LabelButton.

ui/views/controls/button/checkbox.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
 #define UI_VIEWS_CONTROLS_BUTTON_CHECKBOX_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/string16.h"
-#include "ui/views/controls/button/text_button.h"
+#include "ui/views/controls/button/label_button.h"
 
 namespace views {
 
-// A border with zero left inset.
-class VIEWS_EXPORT CheckboxNativeThemeBorder
-    : public TextButtonNativeThemeBorder {
- public:
-  explicit CheckboxNativeThemeBorder(views::NativeThemeDelegate* delegate)
-      : TextButtonNativeThemeBorder(delegate),
-        use_custom_insets_(false) {}
-  virtual ~CheckboxNativeThemeBorder() {}
-
-  // The insets apply to the whole view (checkbox + text), not just the square
-  // with the checkmark in it. The insets do not visibly affect the checkbox,
-  // except to ensure that there is enough padding between this and other
-  // elements.
-  virtual gfx::Insets GetInsets() const OVERRIDE;
-
-  // Use the |custom_insets_| provided instead of those from the theme.
-  void SetCustomInsets(const gfx::Insets& custom_insets);
-
-  // Use the default insets and ignore any |custom_insets_| that may be set.
-  void UseDefaultInsets();
-
- private:
-  // Only used if |use_custom_insets_| is true.
-  gfx::Insets custom_insets_;
-
-  // Whether |custom_insets_| should be used in |GetInsets()|.
-  bool use_custom_insets_;
-
-  DISALLOW_COPY_AND_ASSIGN(CheckboxNativeThemeBorder);
-};
-
 // A native themed class representing a checkbox.  This class does not use
 // platform specific objects to replicate the native platforms looks and feel.
-class VIEWS_EXPORT Checkbox : public TextButtonBase {
+class VIEWS_EXPORT Checkbox : public LabelButton {
  public:
   static const char kViewClassName[];
 
   explicit Checkbox(const string16& label);
   virtual ~Checkbox();
 
   // Sets a listener for this checkbox. Checkboxes aren't required to have them
   // since their state can be read independently of them being toggled.
   void set_listener(ButtonListener* listener) { listener_ = listener; }
 
   // Sets/Gets whether or not the checkbox is checked.
   virtual void SetChecked(bool checked);
   bool checked() const { return checked_; }
 
  protected:
-  // Overridden from View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  // Overridden from LabelButton:
+  virtual void Layout() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
-  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnFocus() OVERRIDE;
+  virtual void OnBlur() OVERRIDE;
+  virtual const gfx::ImageSkia& GetImage(ButtonState for_state) OVERRIDE;
+
+  // Set the image shown for each button state depending on whether it is
+  // [checked] or [focused].
+  void SetCustomImage(bool checked,
+                      bool focused,
+                      ButtonState for_state,
+                      const gfx::ImageSkia& image);
 
  private:
   // Overridden from Button:
   virtual void NotifyClick(const ui::Event& event) OVERRIDE;
 
-  // Overridden from TextButtonBase:
   virtual ui::NativeTheme::Part GetThemePart() const OVERRIDE;
-  virtual gfx::Rect GetThemePaintRect() const OVERRIDE;
   virtual void GetExtraParams(
       ui::NativeTheme::ExtraParams* params) const OVERRIDE;
-  virtual gfx::Rect GetTextBounds() const OVERRIDE;
 
   // True if the checkbox is checked.
   bool checked_;
 
+  // The images for each button state.
+  gfx::ImageSkia images_[2][2][STATE_COUNT];
+
   DISALLOW_COPY_AND_ASSIGN(Checkbox);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_CHECKBOX_H_