chrome/browser/ui/libgtk2ui/native_theme_gtk2.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_
   6 #define CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_
   7
   8 #include "chrome/browser/ui/libgtk2ui/owned_widget_gtk2.h"
   9 #include "ui/native_theme/native_theme_base.h"
  10
  11 typedef struct _GdkColor GdkColor;
  12 typedef struct _GtkStyle GtkStyle;
  13 typedef struct _GtkWidget GtkWidget;
  14
  15 namespace libgtk2ui {
  16
  17 // A version of NativeTheme that uses GTK2 supplied colours instead of the
  18 // default aura colours. Analogue to NativeThemeWin, except that can't be
  19 // compiled into the main chrome binary like the Windows code can.
  20 class NativeThemeGtk2 : public ui::NativeThemeBase {
  21  public:
  22   static NativeThemeGtk2* instance();
  23
  24   // Overridden from ui::NativeThemeBase:
  25   virtual SkColor GetSystemColor(ColorId color_id) const OVERRIDE;
  26   virtual void PaintMenuPopupBackground(
  27       SkCanvas* canvas,
  28       const gfx::Size& size,
  29       const MenuBackgroundExtraParams& menu_background) const OVERRIDE;
  30   virtual void PaintMenuItemBackground(
  31       SkCanvas* canvas,
  32       State state,
  33       const gfx::Rect& rect,
  34       const MenuListExtraParams& menu_list) const OVERRIDE;
  35
  36  private:
  37   NativeThemeGtk2();
  38   virtual ~NativeThemeGtk2();
  39
  40   // Implementation of GetSystemColor.
  41   GdkColor GetSystemGdkColor(ColorId color_id) const;
  42
  43   // Returns styles associated with various widget types.
  44   GtkWidget* GetRealizedWindow() const;
  45   GtkStyle* GetWindowStyle() const;
  46   GtkStyle* GetEntryStyle() const;
  47   GtkStyle* GetLabelStyle() const;
  48   GtkStyle* GetButtonStyle() const;
  49   GtkStyle* GetMenuStyle() const;
  50   GtkStyle* GetMenuItemStyle() const;
  51
  52   mutable GtkWidget* fake_window_;
  53   mutable OwnedWidgetGtk fake_entry_;
  54   mutable OwnedWidgetGtk fake_label_;
  55   mutable OwnedWidgetGtk fake_button_;
  56
  57   mutable OwnedWidgetGtk fake_menu_;
  58   mutable GtkWidget* fake_menu_item_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(NativeThemeGtk2);
  61 };
  62
  63 }  // namespace libgtk2ui
  64
  65 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_