chrome/browser/chromeos/setting_level_bubble_view.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_SETTING_LEVEL_BUBBLE_VIEW_H_
   6 #define CHROME_BROWSER_CHROMEOS_SETTING_LEVEL_BUBBLE_VIEW_H_
   7 #pragma once
   8
   9 #include "base/gtest_prod_util.h"
  10 #include "ui/views/view.h"
  11
  12 namespace views {
  13 class ProgressBar;
  14 }  // namespace views
  15
  16 class SkBitmap;
  17
  18 namespace chromeos {
  19
  20 // SettingLevelBubbleView displays information about the current value of a
  21 // level-based setting like volume or brightness.
  22 class SettingLevelBubbleView : public views::View {
  23  public:
  24   // Layout() is called before Init(), make sure |progress_bar_| is ready.
  25   SettingLevelBubbleView();
  26
  27   // Initialize the view, setting the progress bar to the specified level in the
  28   // range [0.0, 100.0] and state.  Ownership of |icon| remains with the caller
  29   // (it's probably a shared instance from ResourceBundle).
  30   void Init(SkBitmap* icon, double level, bool enabled);
  31
  32   // Change the icon that we're currently displaying.
  33   void SetIcon(SkBitmap* icon);
  34
  35   // Set the progress bar to the specified level and redraw it.
  36   void SetLevel(double level);
  37
  38   // Draw the progress bar in an enabled or disabled state.
  39   void SetEnabled(bool enabled);
  40
  41   // views::View implementation:
  42   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
  43   virtual void Layout() OVERRIDE;
  44   virtual gfx::Size GetPreferredSize() OVERRIDE;
  45
  46  private:
  47   FRIEND_TEST_ALL_PREFIXES(SettingLevelBubbleTest, CreateAndUpdate);
  48
  49   views::ProgressBar* progress_bar_;
  50   SkBitmap* icon_;  // not owned
  51
  52   DISALLOW_COPY_AND_ASSIGN(SettingLevelBubbleView);
  53 };
  54
  55 }  // namespace chromeos
  56
  57 #endif  // CHROME_BROWSER_CHROMEOS_SETTING_LEVEL_BUBBLE_VIEW_H_