ctrl_video.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:7k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * ctrl_video.cpp
- *****************************************************************************
- * Copyright (C) 2004 the VideoLAN team
- * $Id: ee7b883fefe869f842f721df522eb9e8e473d906 $
- *
- * Authors: Cyril Deguet <asmax@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_video.hpp"
- #include "../src/theme.hpp"
- #include "../src/vout_window.hpp"
- #include "../src/os_graphics.hpp"
- #include "../src/vlcproc.hpp"
- #include "../src/vout_manager.hpp"
- #include "../src/window_manager.hpp"
- #include "../commands/async_queue.hpp"
- #include "../commands/cmd_resize.hpp"
- CtrlVideo::CtrlVideo( intf_thread_t *pIntf, GenericLayout &rLayout,
- bool autoResize, const UString &rHelp,
- VarBool *pVisible ):
- CtrlGeneric( pIntf, rHelp, pVisible ), m_rLayout( rLayout ),
- m_xShift( 0 ), m_yShift( 0 ), m_bAutoResize( autoResize ),
- m_pVoutWindow( NULL ), m_bIsUseable( false )
- {
- // Observe the vout size variable if the control is auto-resizable
- if( m_bAutoResize )
- {
- VarBox &rVoutSize = VlcProc::instance( pIntf )->getVoutSizeVar();
- rVoutSize.addObserver( this );
- }
- }
- CtrlVideo::~CtrlVideo()
- {
- VarBox &rVoutSize = VlcProc::instance( getIntf() )->getVoutSizeVar();
- rVoutSize.delObserver( this );
- //m_pLayout->getActiveVar().delObserver( this );
- }
- void CtrlVideo::handleEvent( EvtGeneric &rEvent )
- {
- }
- bool CtrlVideo::mouseOver( int x, int y ) const
- {
- return false;
- }
- void CtrlVideo::onResize()
- {
- const Position *pPos = getPosition();
- if( pPos && m_pVoutWindow )
- {
- m_pVoutWindow->move( pPos->getLeft(), pPos->getTop() );
- m_pVoutWindow->resize( pPos->getWidth(), pPos->getHeight() );
- }
- }
- void CtrlVideo::onPositionChange()
- {
- // Compute the difference between layout size and video size
- m_xShift = m_rLayout.getWidth() - getPosition()->getWidth();
- m_yShift = m_rLayout.getHeight() - getPosition()->getHeight();
- }
- void CtrlVideo::draw( OSGraphics &rImage, int xDest, int yDest )
- {
- GenericWindow *pParent = getWindow();
- const Position *pPos = getPosition();
- if( pParent && pPos )
- {
- // Draw a black rectangle under the video to avoid transparency
- rImage.fillRect( pPos->getLeft(), pPos->getTop(), pPos->getWidth(),
- pPos->getHeight(), 0 );
- }
- }
- void CtrlVideo::setLayout( GenericLayout *pLayout,
- const Position &rPosition )
- {
- CtrlGeneric::setLayout( pLayout, rPosition );
- m_pLayout->getActiveVar().addObserver( this );
- m_bIsUseable = isVisible() && m_pLayout->getActiveVar().get();
- // register Video Control
- VoutManager::instance( getIntf() )->registerCtrlVideo( this );
- msg_Dbg( getIntf(),"New VideoControl detected(%p), useability=%s",
- this, m_bIsUseable ? "true" : "false" );
- }
- void CtrlVideo::resizeControl( int width, int height )
- {
- int newWidth = width + m_xShift;
- int newHeight = height + m_yShift;
- // Create a resize command
- // FIXME: this way of getting the window manager kind of sucks
- WindowManager &rWindowManager =
- getIntf()->p_sys->p_theme->getWindowManager();
- rWindowManager.startResize( m_rLayout, WindowManager::kResizeSE );
- CmdGeneric *pCmd = new CmdResize( getIntf(), rWindowManager,
- m_rLayout, newWidth, newHeight );
- // Push the command in the asynchronous command queue
- AsyncQueue *pQueue = AsyncQueue::instance( getIntf() );
- pQueue->push( CmdGenericPtr( pCmd ), false );
- // FIXME: this should be a command too
- rWindowManager.stopResize();
- pCmd = new CmdResizeInnerVout( getIntf(), this );
- pQueue->push( CmdGenericPtr( pCmd ), false );
- TopWindow* pWin = getWindow();
- rWindowManager.show( *pWin );
- }
- void CtrlVideo::onUpdate( Subject<VarBox> &rVoutSize, void *arg )
- {
- int newWidth = ((VarBox&)rVoutSize).getWidth() + m_xShift;
- int newHeight = ((VarBox&)rVoutSize).getHeight() + m_yShift;
- resizeControl( newWidth, newHeight );
- }
- void CtrlVideo::onUpdate( Subject<VarBool> &rVariable, void *arg )
- {
- // Visibility changed
- if( &rVariable == m_pVisible )
- {
- msg_Dbg( getIntf(), "VideoCtrl : Visibility changed (visible=%d)",
- isVisible() );
- }
- // Active Layout changed
- if( &rVariable == &m_pLayout->getActiveVar() )
- {
- msg_Dbg( getIntf(), "VideoCtrl : Active Layout changed (isActive=%d)",
- m_pLayout->getActiveVar().get() );
- }
- m_bIsUseable = isVisible() && m_pLayout->getActiveVar().get();
- if( m_bIsUseable && !isUsed() )
- {
- VoutManager::instance( getIntf() )->requestVout( this );
- }
- else if( !m_bIsUseable && isUsed() )
- {
- VoutManager::instance( getIntf() )->discardVout( this );
- }
- }
- void CtrlVideo::attachVoutWindow( VoutWindow* pVoutWindow, int width, int height )
- {
- width = ( width < 0 ) ? pVoutWindow->getOriginalWidth() : width;
- height = ( height < 0 ) ? pVoutWindow->getOriginalHeight() : height;
- WindowManager &rWindowManager =
- getIntf()->p_sys->p_theme->getWindowManager();
- TopWindow* pWin = getWindow();
- rWindowManager.show( *pWin );
- if( m_bAutoResize && width && height )
- {
- int newWidth = width + m_xShift;
- int newHeight = height + m_yShift;
- rWindowManager.startResize( m_rLayout, WindowManager::kResizeSE );
- rWindowManager.resize( m_rLayout, newWidth, newHeight );
- rWindowManager.stopResize();
- }
- pVoutWindow->setCtrlVideo( this );
- m_pVoutWindow = pVoutWindow;
- }
- void CtrlVideo::detachVoutWindow( )
- {
- m_pVoutWindow->setCtrlVideo( NULL );
- m_pVoutWindow = NULL;
- }
- void CtrlVideo::resizeInnerVout( )
- {
- if( m_pVoutWindow )
- {
- WindowManager &rWindowManager =
- getIntf()->p_sys->p_theme->getWindowManager();
- TopWindow* pWin = getWindow();
- const Position *pPos = getPosition();
- m_pVoutWindow->resize( pPos->getWidth(), pPos->getHeight() );
- m_pVoutWindow->move( pPos->getLeft(), pPos->getTop() );
- rWindowManager.show( *pWin );
- m_pVoutWindow->show();
- }
- }