/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 *  Zack Rusin <zack@kde.org>.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Lars Knoll <knoll@kde.org>
 *   Zack Rusin <zack@kde.org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#ifndef nsScrollbar_h__
#define nsScrollbar_h__

#include "nsCommonWidget.h"
#include "nsINativeScrollbar.h"
#include <qscrollbar.h>

//=============================================================================
// nsQScrollBar class:
//  Customizes QScrollBar for use by XPFE
//=============================================================================
class nsQScrollBar : public QScrollBar
{
    Q_OBJECT
public:
    nsQScrollBar(int aMinValue, int aMaxValue, int aLineStep,
                 int aPageStep, int aValue, Orientation aOrientation,
                 QWidget *aParent, const char *aName = 0);

    void ScrollBarMoved(int aMessage,int aValue = -1);

public slots:
    void slotValueChanged(int aValue);
private:
};

//=============================================================================
// nsScrollBar class:
//  the XPFE Scrollbar
//=============================================================================
class nsNativeScrollbar : public nsCommonWidget,
                          public nsINativeScrollbar
{
public:
    nsNativeScrollbar();
    virtual ~nsNativeScrollbar();

    // nsISupports
    NS_DECL_ISUPPORTS_INHERITED
    NS_DECL_NSINATIVESCROLLBAR

    // nsIScrollBar implementation

    virtual PRBool OnScroll(nsScrollbarEvent &aEvent,PRUint32 cPos);

    virtual PRBool IsScrollBar() const { return PR_TRUE; }
protected:
    QWidget *createQWidget(QWidget *parent, nsWidgetInitData *aInitData);


private:
    QScrollBar::Orientation mOrientation;
    int mMaxValue;
    int mLineStep;
    int mPageStep;
    int mValue;
    PRUint32 mNsSBID;
};

#endif // nsScrollbar_h__