ctrl_generic.cpp
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:4k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * ctrl_generic.cpp
- *****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
- * $Id: 77e0e8e90180022ae60d0a005dbae024076871b6 $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teulière <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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, 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()
- {
- delete m_pPosition;
- if( m_pVisible )
- {
- m_pVisible->delObserver( this );
- }
- }
- void CtrlGeneric::setLayout( GenericLayout *pLayout,
- const Position &rPosition )
- {
- m_pLayout = pLayout;
- delete m_pPosition;
- m_pPosition = new Position( rPosition );
- onPositionChange();
- }
- void CtrlGeneric::notifyLayout( int width, int height,
- int xOffSet, int yOffSet ) const
- {
- // Notify the layout
- if( m_pLayout )
- {
- m_pLayout->onControlUpdate( *this, width, height, xOffSet, yOffSet );
- }
- }
- void CtrlGeneric::notifyLayoutMaxSize( const Box *pImg1, const Box *pImg2 )
- {
- if( pImg1 == NULL )
- {
- if( pImg2 == NULL )
- {
- notifyLayout();
- }
- else
- {
- notifyLayout( pImg2->getWidth(), pImg2->getHeight() );
- }
- }
- else
- {
- if( pImg2 == NULL )
- {
- notifyLayout( pImg1->getWidth(), pImg1->getHeight() );
- }
- else
- {
- notifyLayout( max( pImg1->getWidth(), pImg2->getWidth() ),
- max( pImg1->getHeight(), pImg2->getHeight() ) );
- }
- }
- }
- 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, void *arg )
- {
- // Is it the visibility variable ?
- if( &rVariable == m_pVisible )
- {
- // Redraw the layout
- notifyLayout();
- }
- else
- {
- // Call the user-defined callback
- onVarBoolUpdate( (VarBool&)rVariable );
- }
- }