ctrl_generic.cpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * ctrl_generic.cpp
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: ctrl_generic.cpp 7073 2004-03-14 14:33:12Z 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.
- *****************************************************************************/
- #include "ctrl_generic.hpp"
- #include "../src/generic_layout.hpp"
- #include "../src/top_window.hpp"
- #include "../src/os_graphics.hpp"
- #include "../utils/position.hpp"
- #include "../utils/var_bool.hpp"
- CtrlGeneric::CtrlGeneric( intf_thread_t *pIntf, const UString &rHelp,
- VarBool *pVisible):
- SkinObject( pIntf ), m_pLayout( NULL ), m_pPosition( NULL ),
- m_help( rHelp ), m_pVisible( pVisible )
- {
- // Observe the visibility variable
- if( m_pVisible )
- {
- m_pVisible->addObserver( this );
- }
- }
- CtrlGeneric::~CtrlGeneric()
- {
- if( m_pPosition )
- {
- delete m_pPosition;
- }
- if( m_pVisible )
- {
- m_pVisible->delObserver( this );
- }
- }
- void CtrlGeneric::setLayout( GenericLayout *pLayout,
- const Position &rPosition )
- {
- m_pLayout = pLayout;
- if( m_pPosition )
- {
- delete m_pPosition;
- }
- m_pPosition = new Position( rPosition );
- onPositionChange();
- }
- void CtrlGeneric::notifyLayout() const
- {
- // Notify the layout
- if( m_pLayout )
- {
- m_pLayout->onControlUpdate( *this );
- }
- }
- void CtrlGeneric::captureMouse() const
- {
- // Tell the layout we want to capture the mouse
- if( m_pLayout )
- {
- m_pLayout->onControlCapture( *this );
- }
- }
- void CtrlGeneric::releaseMouse() const
- {
- // Tell the layout we want to release the mouse
- if( m_pLayout )
- {
- m_pLayout->onControlRelease( *this );
- }
- }
- void CtrlGeneric::notifyTooltipChange() const
- {
- TopWindow *pWin = getWindow();
- if( pWin )
- {
- // Notify the window
- pWin->onTooltipChange( *this );
- }
- }
- TopWindow *CtrlGeneric::getWindow() const
- {
- if( m_pLayout )
- {
- return m_pLayout->getWindow();
- }
- return NULL;
- }
- bool CtrlGeneric::isVisible() const
- {
- return !m_pVisible || m_pVisible->get();
- }
- void CtrlGeneric::onUpdate( Subject<VarBool> &rVariable )
- {
- // Is it the visibily variable ?
- if( &rVariable == m_pVisible )
- {
- // Redraw the layout
- notifyLayout();
- }
- else
- {
- // Call the user-defined callback
- onVarBoolUpdate( (VarBool&)rVariable );
- }
- }