views: Make view::Views::GetPreferredSize() const.

ui/views/controls/button/text_button.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_TEXT_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_TEXT_BUTTON_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 143 matching lines @@
 
   void SetFocusPainter(scoped_ptr<Painter> focus_painter);
   Painter* focus_painter() { return focus_painter_.get(); }
 
   // Paint the button into the specified canvas. If |mode| is |PB_FOR_DRAG|, the
   // function paints a drag image representation into the canvas.
   enum PaintButtonMode { PB_NORMAL, PB_FOR_DRAG };
   virtual void PaintButton(gfx::Canvas* canvas, PaintButtonMode mode);
 
   // Overridden from View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual gfx::Size GetMinimumSize() OVERRIDE;
-  virtual int GetHeightForWidth(int w) OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
+  virtual gfx::Size GetMinimumSize() const OVERRIDE;
+  virtual int GetHeightForWidth(int w) const OVERRIDE;
   virtual void OnEnabledChanged() OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
   virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE;
 
  protected:
   TextButtonBase(ButtonListener* listener, const base::string16& text);
 
   // Called when enabled or disabled state changes, or the colors for those
   // states change.
   virtual void UpdateColor();
 
   // Updates text_size_ and max_text_size_ from the current text/font. This is
   // invoked when the font list or text changes.
   void UpdateTextSize();
 
   // Calculate the size of the text size without setting any of the members.
-  void CalculateTextSize(gfx::Size* text_size, int max_width);
+  void CalculateTextSize(gfx::Size* text_size, int max_width) const;
 
   void set_color_enabled(SkColor color) { color_enabled_ = color; }
   void set_color_disabled(SkColor color) { color_disabled_ = color; }
   void set_color_hover(SkColor color) { color_hover_ = color; }
 
   bool use_enabled_color_from_theme() const {
     return use_enabled_color_from_theme_;
   }
 
   bool use_disabled_color_from_theme() const {
@@ skipping 25 matching lines @@
   int ComputeCanvasStringFlags() const;
 
   // Calculate the bounds of the content of this button, including any extra
   // width needed on top of the text width.
   gfx::Rect GetContentBounds(int extra_width) const;
 
   // The text string that is displayed in the button.
   base::string16 text_;
 
   // The size of the text string.
-  gfx::Size text_size_;
+  mutable gfx::Size text_size_;
 
   // Track the size of the largest text string seen so far, so that
   // changing text_ will not resize the button boundary.
   gfx::Size max_text_size_;
 
   // The alignment of the text string within the button.
   TextAlignment alignment_;
 
   // The font list used to paint the text.
   gfx::FontList font_list_;
@@ skipping 72 matching lines @@
     // ICON_CENTERED works only when |text_| is empty.
     DCHECK((icon_placement != ICON_CENTERED) || text_.empty());
     icon_placement_ = icon_placement;
   }
 
   void set_ignore_minimum_size(bool ignore_minimum_size);
 
   void set_full_justification(bool full_justification);
 
   // Overridden from View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual gfx::Size GetPreferredSize() const OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
 
   // Overridden from TextButtonBase:
   virtual void PaintButton(gfx::Canvas* canvas, PaintButtonMode mode) OVERRIDE;
 
  protected:
   gfx::ImageSkia icon() const { return icon_; }
 
   virtual const gfx::ImageSkia& GetImageToPaint() const;
 
@@ skipping 30 matching lines @@
   // True if the icon and the text are aligned along both the left and right
   // margins of the button.
   bool full_justification_;
 
   DISALLOW_COPY_AND_ASSIGN(TextButton);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_TEXT_BUTTON_H_