ctrl_checkbox.hpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * ctrl_checkbox.hpp
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: ctrl_checkbox.hpp 6961 2004-03-05 17:34:23Z sam $
- *
- * 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_CHECKBOX_HPP
- #define CTRL_CHECKBOX_HPP
- #include "ctrl_generic.hpp"
- #include "../utils/fsm.hpp"
- #include "../utils/observer.hpp"
- class GenericBitmap;
- class OSGraphics;
- class CmdGeneric;
- /// Base class for checkbox controls
- class CtrlCheckbox: public CtrlGeneric
- {
- public:
- /// Create a checkbox with 6 images
- CtrlCheckbox( intf_thread_t *pIntf,
- const GenericBitmap &rBmpUp1,
- const GenericBitmap &rBmpOver1,
- const GenericBitmap &rBmpDown1,
- const GenericBitmap &rBmpUp2,
- const GenericBitmap &rBmpOver2,
- const GenericBitmap &rBmpDown2,
- CmdGeneric &rCommand1, CmdGeneric &rCommand2,
- const UString &rTooltip1, const UString &rTooltip2,
- VarBool &rVariable, const UString &rHelp,
- VarBool *pVisible);
- virtual ~CtrlCheckbox();
- /// Handle an event
- 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 );
- /// Get the text of the tooltip XXX
- virtual UString getTooltipText() const { return *m_pTooltip; }
- private:
- /// Finite state machine of the control
- FSM m_fsm;
- /// Observed variable
- VarBool &m_rVariable;
- /// Commands for the 2 states
- CmdGeneric &m_rCommand1, &m_rCommand2;
- /// Current command
- CmdGeneric *m_pCommand;
- /// Tooltip texts for the 2 states
- const UString m_tooltip1, m_tooltip2;
- /// Current tooltip
- const UString *m_pTooltip;
- /// Callbacks objects
- Callback m_cmdUpOverDownOver;
- Callback m_cmdDownOverUpOver;
- Callback m_cmdDownOverDown;
- Callback m_cmdDownDownOver;
- Callback m_cmdUpOverUp;
- Callback m_cmdUpUpOver;
- Callback m_cmdDownUp;
- Callback m_cmdUpHidden;
- Callback m_cmdHiddenUp;
- /// Images of the checkbox in the different states
- OSGraphics *m_pImgUp1, *m_pImgOver1, *m_pImgDown1;
- OSGraphics *m_pImgUp2, *m_pImgOver2, *m_pImgDown2;
- /// Current set of images (pointing to 1 or 2)
- /// In fact, we consider here that a checkbox acts like 2 buttons, in a
- /// symetric way; this is a small trick to avoid multiplicating the
- /// callbacks (and it could be extended easily to support 3 buttons or
- /// more...)
- OSGraphics *m_pImgUp, *m_pImgOver, *m_pImgDown;
- /// Current image
- OSGraphics *m_pImgCurrent;
- /// Callback functions
- static void transUpOverDownOver( SkinObject *pCtrl );
- static void transDownOverUpOver( SkinObject *pCtrl );
- static void transDownOverDown( SkinObject *pCtrl );
- static void transDownDownOver( SkinObject *pCtrl );
- static void transUpOverUp( SkinObject *pCtrl );
- static void transUpUpOver( SkinObject *pCtrl );
- static void transDownUp( SkinObject *pCtrl );
- static void transUpHidden( SkinObject *pCtrl );
- static void transHiddenUp( SkinObject *pCtrl );
- /// Method called when the observed variable is modified
- virtual void onVarBoolUpdate( VarBool &rVariable );
- /// Helper function to update the current state of images
- void changeButton();
- };
- #endif