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// Copyright (c) 2006-2008 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 CHROME_VIEWS_RADIO_BUTTON_H__
#define CHROME_VIEWS_RADIO_BUTTON_H__
#include "chrome/views/checkbox.h"
namespace ChromeViews {
////////////////////////////////////////////////////////////////////////////////
//
// A wrapper for windows's native radio button. Radio buttons can be mutually
// exclusive with other radio buttons.
//
////////////////////////////////////////////////////////////////////////////////
class RadioButton : public CheckBox {
public:
// The view class name.
static const char kViewClassName[];
// Create a radio button with the provided label and group id.
// The group id is used to identify all the other radio buttons which are in
// mutual exclusion with this radio button. Note: RadioButton assumes that
// all views with that group id are RadioButton. It is an error to give
// that group id to another view subclass which is not a radio button or
// a radio button subclass.
RadioButton(const std::wstring& label, int group_id);
virtual ~RadioButton();
virtual void GetPreferredSize(CSize *out);
virtual void Layout();
virtual std::string GetClassName() const;
// Overridden to properly perform mutual exclusion.
virtual void SetIsSelected(bool f);
virtual View* GetSelectedViewForGroup(int group_id);
// When focusing a RadioButton with Tab/Shift-Tab, only the selected button
// from the group should be accessible.
virtual bool IsGroupFocusTraversable() const { return false; }
protected:
virtual HWND CreateNativeControl(HWND parent_container);
virtual LRESULT OnCommand(UINT code, int id, HWND source);
private:
// Get the horizontal distance of the start of the text from the left of the
// control.
static int GetTextIndent();
DISALLOW_EVIL_CONSTRUCTORS(RadioButton);
};
}
#endif // CHROME_VIEWS_RADIO_BUTTON_H__
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