// 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_EXAMPLES_NATIVE_THEME_BUTTON_EXAMPLE_H_
#define UI_VIEWS_EXAMPLES_NATIVE_THEME_BUTTON_EXAMPLE_H_

#include <string>

#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "ui/base/native_theme/native_theme.h"
#include "ui/views/controls/button/custom_button.h"
#include "ui/views/controls/combobox/combobox_listener.h"
#include "ui/views/examples/example_base.h"
#include "ui/views/native_theme_delegate.h"

namespace views {
class Combobox;
class NativeThemePainter;

namespace examples {

class ExampleComboboxModel;

// A subclass of button to test native theme rendering.
class ExampleNativeThemeButton : public CustomButton,
                                 public NativeThemeDelegate,
                                 public ComboboxListener {
 public:
  ExampleNativeThemeButton(ButtonListener* listener,
                           Combobox* cb_part,
                           Combobox* cb_state);
  virtual ~ExampleNativeThemeButton();

  std::string MessWithState();

 private:
  // Overridden from View:
  virtual gfx::Size GetPreferredSize() OVERRIDE;
  virtual void OnPaintBackground(gfx::Canvas* canvas)  OVERRIDE;

  // Overridden from ComboboxListener:
  virtual void OnSelectedIndexChanged(Combobox* combobox) OVERRIDE;

  // Overridden from NativeThemeDelegate:
  virtual ui::NativeTheme::Part GetThemePart() const OVERRIDE;
  virtual gfx::Rect GetThemePaintRect() const OVERRIDE;
  virtual ui::NativeTheme::State GetThemeState(
      ui::NativeTheme::ExtraParams* params) const OVERRIDE;
  virtual const ui::Animation* GetThemeAnimation() const OVERRIDE;
  virtual ui::NativeTheme::State GetBackgroundThemeState(
      ui::NativeTheme::ExtraParams* params) const OVERRIDE;
  virtual ui::NativeTheme::State GetForegroundThemeState(
      ui::NativeTheme::ExtraParams* params) const OVERRIDE;

  void GetExtraParams(ui::NativeTheme::ExtraParams* params) const;

  scoped_ptr<NativeThemePainter> painter_;
  Combobox* cb_part_;
  Combobox* cb_state_;
  int count_;
  bool is_checked_;
  bool is_indeterminate_;

  DISALLOW_COPY_AND_ASSIGN(ExampleNativeThemeButton);
};

// NativeThemeButtonExample shows how a View can use the NativeThemePainter
// to paints its background and get a native look.
class NativeThemeButtonExample : public ExampleBase, public ButtonListener {
 public:
  NativeThemeButtonExample();
  virtual ~NativeThemeButtonExample();

  // Overridden from ExampleBase:
  virtual void CreateExampleView(View* container) OVERRIDE;

 private:
  // Overridden from ButtonListener:
  virtual void ButtonPressed(Button* sender, const Event& event) OVERRIDE;

  ExampleNativeThemeButton* button_;

  scoped_ptr<ExampleComboboxModel> combobox_model_part_;
  scoped_ptr<ExampleComboboxModel> combobox_model_state_;

  DISALLOW_COPY_AND_ASSIGN(NativeThemeButtonExample);
};

}  // namespace examples
}  // namespace views

#endif  // UI_VIEWS_EXAMPLES_NATIVE_THEME_BUTTON_EXAMPLE_H_