ui/views/controls/button/label_button_border.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_LABEL_BUTTON_BORDER_H_
#define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_BORDER_H_

#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/insets.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/painter.h"

namespace views {

// A Border that paints a LabelButton's background frame.
class VIEWS_EXPORT LabelButtonBorder : public Border {
 public:
  explicit LabelButtonBorder(Button::ButtonStyle style);
  virtual ~LabelButtonBorder();

  Button::ButtonStyle style() const { return style_; }

  // Overridden from Border:
  virtual void Paint(const View& view, gfx::Canvas* canvas) OVERRIDE;
  virtual gfx::Insets GetInsets() const OVERRIDE;
  virtual gfx::Size GetMinimumSize() const OVERRIDE;

  void set_insets(const gfx::Insets& insets) { insets_ = insets; }

  // Get or set the painter used for the specified |focused| button |state|.
  // LabelButtonBorder takes and retains ownership of |painter|.
  Painter* GetPainter(bool focused, Button::ButtonState state);
  void SetPainter(bool focused, Button::ButtonState state, Painter* painter);

 private:
  // The painters used for each unfocused or focused button state.
  scoped_ptr<Painter> painters_[2][Button::STATE_COUNT];

  // The button style supplied in part by this border.
  Button::ButtonStyle style_;

  gfx::Insets insets_;

  DISALLOW_COPY_AND_ASSIGN(LabelButtonBorder);
};

}  // namespace views

#endif  // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_BORDER_H_