ctrl_list.hpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * ctrl_list.hpp
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: ctrl_list.hpp 7261 2004-04-03 13:57:46Z asmax $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teuli鑢e <ipkiss@via.ecp.fr>
- *
- * 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 of the License, 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef CTRL_LIST_HPP
- #define CTRL_LIST_HPP
- #include "ctrl_generic.hpp"
- #include "../utils/observer.hpp"
- #include "../utils/var_list.hpp"
- class OSGraphics;
- class GenericFont;
- /// Class for control list
- class CtrlList: public CtrlGeneric, public Observer<VarList>,
- public Observer<VarPercent>
- {
- public:
- CtrlList( intf_thread_t *pIntf, VarList &rList, GenericFont &rFont,
- uint32_t fgcolor, uint32_t playcolor, uint32_t bgcolor1,
- uint32_t bgcolor2, uint32_t selColor,
- const UString &rHelp, VarBool *pVisible );
- virtual ~CtrlList();
- /// Handle an event on the control.
- virtual void handleEvent( EvtGeneric &rEvent );
- /// Check whether coordinates are inside the control.
- virtual bool mouseOver( int x, int y ) const;
- /// Draw the control on the given graphics
- virtual void draw( OSGraphics &rImage, int xDest, int yDest );
- /// Called when the layout is resized
- virtual void onResize();
- /// Return true if the control can gain the focus
- virtual bool isFocusable() const { return true; }
- private:
- /// List associated to the control
- VarList &m_rList;
- /// Font
- GenericFont &m_rFont;
- /// Color of normal text
- uint32_t m_fgColor;
- /// Color of the playing item
- uint32_t m_playColor;
- /// Background colors
- uint32_t m_bgColor1, m_bgColor2;
- /// Background of selected items
- uint32_t m_selColor;
- /// Pointer on the last selected item in the list
- VarList::Elem_t *m_pLastSelected;
- /// Image of the control
- OSGraphics *m_pImage;
- /// Last position
- int m_lastPos;
- /// Method called when the list variable is modified
- virtual void onUpdate( Subject<VarList> &rList );
- /// Method called when the position variable of the list is modified
- virtual void onUpdate( Subject<VarPercent> &rPercent );
- /// Called when the position is set
- virtual void onPositionChange();
- /// Check if the list must be scrolled
- void autoScroll();
- /// Draw the image of the control
- void makeImage();
- };
- #endif