chromium/ui/views/native_theme_delegate.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_VIEWS_NATIVE_THEME_DELEGATE_H_
#define UI_VIEWS_NATIVE_THEME_DELEGATE_H_

#include "ui/gfx/geometry/rect.h"
#include "ui/native_theme/native_theme.h"
#include "ui/views/views_export.h"

namespace views {

// A delagate that supports animating transtions between different native
// theme states.  This delegate can be used to control a native theme Border
// or Painter object.
//
// If animation is ongoing, the native theme border or painter will
// composite the foreground state over the backgroud state using an alpha
// between 0 and 255 based on the current value of the animation.
class VIEWS_EXPORT NativeThemeDelegate { … };

}  // namespace views

#endif  // UI_VIEWS_NATIVE_THEME_DELEGATE_H_