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/*!
\file GUIScrollBar.h
\brief
*/

#ifndef GUILIB_GUISCROLLBAR_H
#define GUILIB_GUISCROLLBAR_H

#pragma once

/*
 *      Copyright (C) 2005-2008 Team XBMC
 *      http://www.xbmc.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#include "GUITexture.h"
#include "GUIControl.h"

/*!
 \ingroup controls
 \brief
 */
class CGUIScrollBar :
      public CGUIControl
{
public:
  CGUIScrollBar(int parentID, int controlID, float posX, float posY,
                       float width, float height,
                       const CTextureInfo& backGroundTexture,
                       const CTextureInfo& barTexture, const CTextureInfo& barTextureFocus,
                       const CTextureInfo& nibTexture, const CTextureInfo& nibTextureFocus,
                       ORIENTATION orientation, bool showOnePage);
  virtual ~CGUIScrollBar(void);
  virtual CGUIScrollBar *Clone() const { return new CGUIScrollBar(*this); };

  virtual void Render();
  virtual bool OnAction(const CAction &action);
  virtual void AllocResources();
  virtual void FreeResources(bool immediately = false);
  virtual void DynamicResourceAlloc(bool bOnOff);
  virtual void SetInvalid();
  virtual void SetRange(int pageSize, int numItems);
  virtual bool OnMessage(CGUIMessage& message);
  void SetValue(int value);
  int GetValue() const;
  virtual CStdString GetDescription() const;
  virtual bool IsVisible() const;
protected:
  virtual bool HitTest(const CPoint &point) const;
  virtual EVENT_RESULT OnMouseEvent(const CPoint &point, const CMouseEvent &event);
  virtual void UpdateColors();
  void UpdateBarSize();
  virtual void Move(int iNumSteps);
  virtual void SetFromPosition(const CPoint &point);

  CGUITexture m_guiBackground;
  CGUITexture m_guiBarNoFocus;
  CGUITexture m_guiBarFocus;
  CGUITexture m_guiNibNoFocus;
  CGUITexture m_guiNibFocus;

  int m_numItems;
  int m_pageSize;
  int m_offset;

  bool m_showOnePage;
  ORIENTATION m_orientation;
};
#endif