git.sesse.net Git - vlc/blob - modules/gui/qt4/main_interface.cpp

   1 /*****************************************************************************
   2  * main_inteface.cpp : Main interface
   3  ****************************************************************************
   4  * Copyright (C) 2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/
  22
  23 #include "qt4.hpp"
  24 #include "main_interface.hpp"
  25 #include "input_manager.hpp"
  26 #include "util/input_slider.hpp"
  27 #include "util/qvlcframe.hpp"
  28 #include "util/customwidgets.hpp"
  29 #include "dialogs_provider.hpp"
  30 #include "components/interface_widgets.hpp"
  31 #include "dialogs/playlist.hpp"
  32 #include "menus.hpp"
  33
  34 #include <QMenuBar>
  35 #include <QCloseEvent>
  36 #include <QPushButton>
  37 #include <QStatusBar>
  38 #include <QKeyEvent>
  39 #include <QUrl>
  40
  41 #include <assert.h>
  42 #include <vlc_keys.h>
  43 #include <vlc_vout.h>
  44
  45 #ifdef WIN32
  46     #define PREF_W 410
  47     #define PREF_H 121
  48 #else
  49     #define PREF_W 450
  50     #define PREF_H 125
  51 #endif
  52
  53 #define VISIBLE(i) (i && i->isVisible())
  54
  55 #define SET_WIDTH(i,j) i->widgetSize.setWidth(j)
  56 #define SET_HEIGHT(i,j) i->widgetSize.setHeight(j)
  57 #define SET_WH( i,j,k) i->widgetSize.setWidth(j); i->widgetSize.setHeight(k);
  58
  59 #define DS(i) i.width(),i.height()
  60
  61 static int InteractCallback( vlc_object_t *, const char *, vlc_value_t,
  62                              vlc_value_t, void *);
  63 /* Video handling */
  64 static void *DoRequest( intf_thread_t *p_intf, vout_thread_t *p_vout,
  65                         int *pi1, int *pi2, unsigned int*pi3,unsigned int*pi4)
  66 {
  67     return p_intf->p_sys->p_mi->requestVideo( p_vout, pi1, pi2, pi3, pi4 );
  68 }
  69 static void DoRelease( intf_thread_t *p_intf, void *p_win )
  70 {
  71     return p_intf->p_sys->p_mi->releaseVideo( p_win );
  72 }
  73 static int DoControl( intf_thread_t *p_intf, void *p_win, int i_q, va_list a )
  74 {
  75     return p_intf->p_sys->p_mi->controlVideo( p_win, i_q, a );
  76 }
  77
  78 bool embeddedPlaylistWasActive;
  79 bool videoIsActive;
  80 QSize savedVideoSize;
  81
  82 MainInterface::MainInterface( intf_thread_t *_p_intf ) : QVLCMW( _p_intf )
  83 {
  84     /* Configuration */
  85     settings = new QSettings( "VideoLAN", "VLC" );
  86     settings->beginGroup( "MainWindow" );
  87
  88     need_components_update = false;
  89     bgWidget = NULL; videoWidget = NULL; playlistWidget = NULL;
  90     embeddedPlaylistWasActive = videoIsActive = false;
  91
  92     videoEmbeddedFlag = false;
  93     if( config_GetInt( p_intf, "embedded-video" ) ) videoEmbeddedFlag = true;
  94
  95     alwaysVideoFlag = false;
  96     if( videoEmbeddedFlag && config_GetInt( p_intf, "qt-always-video" ))
  97         alwaysVideoFlag = true;
  98
  99     playlistEmbeddedFlag = settings->value("playlist-embedded", true).toBool();
 100     advControlsEnabled= settings->value( "adv-controls", false ).toBool();
 101     visualSelectorEnabled= settings->value( "visual-selector", false ).toBool();
 102
 103     /* UI */
 104     setWindowTitle( qtr( "VLC media player" ) );
 105     handleMainUi( settings );
 106     QVLCMenu::createMenuBar( this, p_intf, playlistEmbeddedFlag,
 107                              advControlsEnabled, visualSelectorEnabled );
 108     timeLabel = new QLabel( 0 );
 109     nameLabel = new QLabel( 0 );
 110     statusBar()->addWidget( nameLabel, 4 );
 111     statusBar()->addPermanentWidget( timeLabel, 1 );
 112
 113     setFocusPolicy( Qt::StrongFocus );
 114     setAcceptDrops(true);
 115
 116     /* Init input manager */
 117     MainInputManager::getInstance( p_intf );
 118     ON_TIMEOUT( updateOnTimer() );
 119
 120     /* Volume control */
 121     CONNECT( ui.volumeSlider, valueChanged(int), this, updateVolume(int) );
 122     /* Connect the input manager to the GUI elements it manages */
 123     CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
 124              slider, setPosition( float,int, int ) );
 125     CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
 126              this, setDisplay( float, int, int ) );
 127     CONNECT( THEMIM->getIM(), nameChanged( QString ), this,setName( QString ) );
 128     CONNECT( THEMIM->getIM(), statusChanged( int ), this, setStatus( int ) );
 129     CONNECT( THEMIM->getIM(), navigationChanged( int ), this, setNavigation(int) );
 130     CONNECT( slider, sliderDragged( float ),
 131              THEMIM->getIM(), sliderUpdate( float ) );
 132
 133     CONNECT( ui.prevSectionButton, clicked(), THEMIM->getIM(),
 134              sectionPrev() );
 135     CONNECT( ui.nextSectionButton, clicked(), THEMIM->getIM(),
 136              sectionNext() );
 137     CONNECT( ui.menuButton, clicked(), THEMIM->getIM(),
 138              sectionMenu() );
 139
 140     var_Create( p_intf, "interaction", VLC_VAR_ADDRESS );
 141     var_AddCallback( p_intf, "interaction", InteractCallback, this );
 142     p_intf->b_interaction = VLC_TRUE;
 143 }
 144
 145 MainInterface::~MainInterface()
 146 {
 147     settings->setValue( "playlist-embedded", playlistEmbeddedFlag );
 148     settings->setValue( "adv-controls", advControlsEnabled );
 149     settings->setValue( "pos", pos() );
 150     settings->endGroup();
 151     delete settings;
 152     p_intf->b_interaction = VLC_FALSE;
 153     var_DelCallback( p_intf, "interaction", InteractCallback, this );
 154
 155     p_intf->pf_request_window = NULL;
 156     p_intf->pf_release_window = NULL;
 157     p_intf->pf_control_window = NULL;
 158 }
 159
 160 void MainInterface::handleMainUi( QSettings *settings )
 161 {
 162     QWidget *main = new QWidget( this );
 163     setCentralWidget( main );
 164     ui.setupUi( centralWidget() );
 165
 166     slider = new InputSlider( Qt::Horizontal, NULL );
 167     ui.hboxLayout->insertWidget( 0, slider );
 168     ui.discFrame->hide();
 169     BUTTON_SET_IMG( ui.prevSectionButton, "", previous.png, "" );
 170     BUTTON_SET_IMG( ui.nextSectionButton, "", next.png, "" );
 171     BUTTON_SET_IMG( ui.menuButton, "", previous.png, "" );
 172
 173     BUTTON_SET_ACT_I( ui.prevButton, "" , previous.png,
 174                       qtr("Previous"), prev() );
 175     BUTTON_SET_ACT_I( ui.nextButton, "", next.png, qtr("Next"), next() );
 176     BUTTON_SET_ACT_I( ui.playButton, "", play.png, qtr("Play"), play() );
 177     BUTTON_SET_ACT_I( ui.stopButton, "", stop.png, qtr("Stop"), stop() );
 178
 179     /* Volume */
 180     ui.volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-low.png" ) );
 181     ui.volumeSlider->setMaximum( 100 );
 182     ui.volMuteLabel->setToolTip( qtr( "Mute" ) );
 183     VolumeClickHandler *h = new VolumeClickHandler( p_intf, this );
 184     ui.volMuteLabel->installEventFilter(h);
 185     ui.volumeSlider->setFocusPolicy( Qt::NoFocus );
 186
 187     BUTTON_SET_IMG( ui.playlistButton, "" , playlist_icon.png,
 188                         playlistEmbeddedFlag ?  qtr( "Show playlist" ) :
 189                                                 qtr( "Open playlist" ) );
 190     BUTTONACT( ui.playlistButton, playlist() );
 191
 192     /* Set initial size */
 193     resize ( PREF_W, PREF_H );
 194
 195     addSize = QSize( ui.vboxLayout->margin() * 2, PREF_H );
 196
 197     advControls = new ControlsWidget( p_intf );
 198     ui.vboxLayout->insertWidget( 0, advControls );
 199     advControls->updateGeometry();
 200     if( !advControlsEnabled ) advControls->hide();
 201     need_components_update = true;
 202
 203     visualSelector = new VisualSelector( p_intf );
 204     ui.vboxLayout->insertWidget( 0, visualSelector );
 205     visualSelector->hide();
 206
 207     if( alwaysVideoFlag )
 208     {
 209         bgWidget = new BackgroundWidget( p_intf );
 210         bgWidget->widgetSize = settings->value( "backgroundSize",
 211                                                 QSize( 200, 200 ) ).toSize();
 212         bgWidget->resize( bgWidget->widgetSize );
 213         bgWidget->updateGeometry();
 214         ui.vboxLayout->insertWidget( 0, bgWidget );
 215     }
 216
 217     if( videoEmbeddedFlag )
 218     {
 219         videoWidget = new VideoWidget( p_intf );
 220         videoWidget->widgetSize = QSize( 1, 1 );
 221         videoWidget->resize( videoWidget->widgetSize );
 222         ui.vboxLayout->insertWidget( 0, videoWidget );
 223
 224         p_intf->pf_request_window  = ::DoRequest;
 225         p_intf->pf_release_window  = ::DoRelease;
 226         p_intf->pf_control_window  = ::DoControl;
 227     }
 228     setMinimumSize( PREF_W, addSize.height() );
 229 }
 230
 231 /**********************************************************************
 232  * Handling of the components
 233  **********************************************************************/
 234 void MainInterface::calculateInterfaceSize()
 235 {
 236     int width = 0, height = 0;
 237     if( VISIBLE( bgWidget ) )
 238     {
 239         width = bgWidget->widgetSize.width();
 240         height = bgWidget->widgetSize.height();
 241         assert( !(playlistWidget && playlistWidget->isVisible() ) );
 242     }
 243     else if( VISIBLE( playlistWidget ) )
 244     {
 245         width = playlistWidget->widgetSize.width();
 246         height = playlistWidget->widgetSize.height();
 247     }
 248     else if( videoIsActive )
 249     {
 250         width =  videoWidget->widgetSize.width() ;
 251         height = videoWidget->widgetSize.height();
 252     }
 253     else
 254     {
 255         width = PREF_W - addSize.width();
 256         height = PREF_H - addSize.height();
 257     }
 258     if( VISIBLE( visualSelector ) )
 259         height += visualSelector->height();
 260     if( VISIBLE( advControls) )
 261     {
 262         height += advControls->sizeHint().height();
 263     }
 264     mainSize = QSize( width + addSize.width(), height + addSize.height() );
 265 }
 266
 267 void MainInterface::resizeEvent( QResizeEvent *e )
 268 {
 269     videoWidget->widgetSize.setWidth(  e->size().width() - addSize.width() );
 270     if( videoWidget && videoIsActive && videoWidget->widgetSize.height() > 1 )
 271     {
 272         SET_WH( videoWidget, e->size().width() - addSize.width(),
 273                              e->size().height()  - addSize.height() );
 274         videoWidget->updateGeometry();
 275     }
 276     if( VISIBLE( playlistWidget ) )
 277     {
 278         SET_WH( playlistWidget , e->size().width() - addSize.width(),
 279                                  e->size().height() - addSize.height() );
 280         playlistWidget->updateGeometry();
 281     }
 282 }
 283
 284 void *MainInterface::requestVideo( vout_thread_t *p_nvout, int *pi_x,
 285                                    int *pi_y, unsigned int *pi_width,
 286                                    unsigned int *pi_height )
 287 {
 288     void *ret = videoWidget->request( p_nvout,pi_x, pi_y, pi_width, pi_height );
 289     if( ret )
 290     {
 291         videoIsActive = true;
 292         if( VISIBLE( playlistWidget ) )
 293         {
 294             embeddedPlaylistWasActive = true;
 295             playlistWidget->hide();
 296         }
 297         bool bgWasVisible = false;
 298         if( VISIBLE( bgWidget) )
 299         {
 300             bgWasVisible = true;
 301             bgWidget->hide();
 302         }
 303         if( THEMIM->getIM()->hasVideo() || !bgWasVisible )
 304         {
 305             videoWidget->widgetSize = QSize( *pi_width, *pi_height );
 306         }
 307         else /* Background widget available, use its size */
 308         {
 309             /* Ok, our visualizations are bad, so don't do this for the moment
 310              * use the requested size anyway */
 311             // videoWidget->widgetSize = bgWidget->widgeTSize;
 312             videoWidget->widgetSize = QSize( *pi_width, *pi_height );
 313         }
 314         videoWidget->updateGeometry(); /// FIXME: Needed ?
 315         need_components_update = true;
 316     }
 317     return ret;
 318 }
 319
 320 void MainInterface::releaseVideo( void *p_win )
 321 {
 322     videoWidget->release( p_win );
 323     videoWidget->widgetSize = QSize( 0, 0 );
 324     videoWidget->resize( videoWidget->widgetSize );
 325
 326     if( embeddedPlaylistWasActive )
 327         playlistWidget->show();
 328     else if( bgWidget )
 329         bgWidget->show();
 330
 331     videoIsActive = false;
 332     need_components_update = true;
 333 }
 334
 335 int MainInterface::controlVideo( void *p_window, int i_query, va_list args )
 336 {
 337     int i_ret = VLC_EGENERIC;
 338     switch( i_query )
 339     {
 340         case VOUT_GET_SIZE:
 341         {
 342             unsigned int *pi_width  = va_arg( args, unsigned int * );
 343             unsigned int *pi_height = va_arg( args, unsigned int * );
 344             *pi_width = videoWidget->widgetSize.width();
 345             *pi_height = videoWidget->widgetSize.height();
 346             i_ret = VLC_SUCCESS;
 347             break;
 348         }
 349         case VOUT_SET_SIZE:
 350         {
 351             unsigned int i_width  = va_arg( args, unsigned int );
 352             unsigned int i_height = va_arg( args, unsigned int );
 353             videoWidget->widgetSize = QSize( i_width, i_height );
 354             videoWidget->updateGeometry();
 355             need_components_update = true;
 356             i_ret = VLC_SUCCESS;
 357             break;
 358         }
 359         case VOUT_SET_STAY_ON_TOP:
 360         default:
 361             msg_Warn( p_intf, "unsupported control query" );
 362             break;
 363     }
 364     return i_ret;
 365 }
 366
 367 void MainInterface::advanced()
 368 {
 369     if( !VISIBLE( advControls ) )
 370     {
 371         advControls->show();
 372         advControlsEnabled = true;
 373     }
 374     else
 375     {
 376         advControls->hide();
 377         advControlsEnabled = false;
 378     }
 379     doComponentsUpdate();
 380 }
 381
 382 void MainInterface::visual()
 383 {
 384     if( !VISIBLE( visualSelector) )
 385     {
 386         visualSelector->show();
 387         if( !THEMIM->getIM()->hasVideo() )
 388         {
 389             /* Show the background widget */
 390         }
 391         visualSelectorEnabled = true;
 392     }
 393     else
 394     {
 395         /* Stop any currently running visualization */
 396         visualSelector->hide();
 397         visualSelectorEnabled = false;
 398     }
 399     doComponentsUpdate();
 400 }
 401
 402 void MainInterface::playlist()
 403 {
 404     // Toggle the playlist dialog
 405     if( !playlistEmbeddedFlag )
 406     {
 407         if( playlistWidget )
 408         {
 409             /// \todo Destroy it
 410         }
 411         THEDP->playlistDialog();
 412         return;
 413     }
 414
 415     if( !playlistWidget )
 416     {
 417         PlaylistDialog::killInstance();
 418         playlistWidget = new PlaylistWidget( p_intf );
 419         ui.vboxLayout->insertWidget( 0, playlistWidget );
 420         playlistWidget->widgetSize = settings->value( "playlistSize",
 421                                                QSize( 650, 310 ) ).toSize();
 422         playlistWidget->hide();
 423     }
 424     if( VISIBLE( playlistWidget ) )
 425     {
 426         playlistWidget->hide();
 427         if( videoIsActive )
 428         {
 429             videoWidget->widgetSize = savedVideoSize;
 430             videoWidget->resize( videoWidget->widgetSize );
 431             videoWidget->updateGeometry();
 432         }
 433     }
 434     else
 435     {
 436         playlistWidget->show();
 437         if( videoIsActive )
 438         {
 439             savedVideoSize = videoWidget->widgetSize;
 440             videoWidget->widgetSize.setHeight( 0 );
 441             videoWidget->resize( videoWidget->widgetSize );
 442             videoWidget->updateGeometry();
 443         }
 444         if( VISIBLE( bgWidget ) ) bgWidget->hide();
 445     }
 446     doComponentsUpdate();
 447 }
 448
 449 /* Video widget cannot do this synchronously as it runs in another thread */
 450 /* Well, could it, actually ? Probably dangerous ... */
 451 void MainInterface::doComponentsUpdate()
 452 {
 453     calculateInterfaceSize();
 454     resize( mainSize );
 455 }
 456
 457 void MainInterface::undockPlaylist()
 458 {
 459     if( playlistWidget )
 460     {
 461         playlistWidget->hide();
 462         playlistWidget->deleteLater();
 463         ui.vboxLayout->removeWidget( playlistWidget );
 464         playlistWidget = NULL;
 465         playlistEmbeddedFlag = false;
 466
 467         menuBar()->clear();
 468         QVLCMenu::createMenuBar( this, p_intf, false, advControlsEnabled,
 469                                  visualSelectorEnabled);
 470
 471         if( videoIsActive )
 472         {
 473             videoWidget->widgetSize = savedVideoSize;
 474             videoWidget->resize( videoWidget->widgetSize );
 475             videoWidget->updateGeometry();
 476         }
 477
 478         doComponentsUpdate();
 479         THEDP->playlistDialog();
 480     }
 481 }
 482
 483 void MainInterface::customEvent( QEvent *event )
 484 {
 485     if( event->type() == PLDockEvent_Type )
 486     {
 487         PlaylistDialog::killInstance();
 488         playlistEmbeddedFlag = true;
 489         menuBar()->clear();
 490         QVLCMenu::createMenuBar(this, p_intf, true, advControlsEnabled,
 491                                 visualSelectorEnabled);
 492         playlist();
 493     }
 494 }
 495
 496
 497 /************************************************************************
 498  * D&D
 499  ************************************************************************/
 500 void MainInterface::dropEvent(QDropEvent *event)
 501 {
 502      const QMimeData *mimeData = event->mimeData();
 503
 504      /* D&D of a subtitles file, add it on the fly */
 505      if( mimeData->urls().size() == 1 )
 506      {
 507         if( THEMIM->getIM()->hasInput() )
 508         {
 509             if( input_AddSubtitles( THEMIM->getInput(),
 510                                     qtu( mimeData->urls()[0].toString() ),
 511                                     VLC_TRUE ) )
 512             {
 513                 event->acceptProposedAction();
 514                 return;
 515             }
 516         }
 517      }
 518      bool first = true;
 519      foreach( QUrl url, mimeData->urls() ) {
 520         QString s = url.toString();
 521         if( s.length() > 0 ) {
 522             playlist_Add( THEPL, qtu(s), NULL,
 523                           PLAYLIST_APPEND | (first ? PLAYLIST_GO:0),
 524                           PLAYLIST_END, VLC_TRUE );
 525             first = false;
 526         }
 527      }
 528      event->acceptProposedAction();
 529 }
 530 void MainInterface::dragEnterEvent(QDragEnterEvent *event)
 531 {
 532      event->acceptProposedAction();
 533 }
 534 void MainInterface::dragMoveEvent(QDragMoveEvent *event)
 535 {
 536      event->acceptProposedAction();
 537 }
 538 void MainInterface::dragLeaveEvent(QDragLeaveEvent *event)
 539 {
 540      event->accept();
 541 }
 542
 543 /************************************************************************
 544  * Other stuff
 545  ************************************************************************/
 546 void MainInterface::keyPressEvent( QKeyEvent *e )
 547 {
 548     int i_vlck = qtEventToVLCKey( e );
 549     if( i_vlck >= 0 )
 550     {
 551         var_SetInteger( p_intf->p_libvlc, "key-pressed", i_vlck );
 552         e->accept();
 553     }
 554     else
 555         e->ignore();
 556 }
 557
 558 void MainInterface::stop()
 559 {
 560     playlist_Stop( THEPL );
 561 }
 562 void MainInterface::play()
 563 {
 564     if( playlist_IsEmpty(THEPL) )
 565     {
 566         /* The playlist is empty, open a file requester */
 567         THEDP->simpleOpenDialog();
 568         setStatus( 0 );
 569         return;
 570     }
 571     THEMIM->togglePlayPause();
 572 }
 573 void MainInterface::prev()
 574 {
 575     playlist_Prev( THEPL );
 576 }
 577 void MainInterface::next()
 578 {
 579     playlist_Next( THEPL );
 580 }
 581
 582 void MainInterface::setDisplay( float pos, int time, int length )
 583 {
 584     char psz_length[MSTRTIME_MAX_SIZE], psz_time[MSTRTIME_MAX_SIZE];
 585     secstotimestr( psz_length, length );
 586     secstotimestr( psz_time, time );
 587     QString title;
 588     title.sprintf( "%s/%s", psz_time, psz_length );
 589     timeLabel->setText( " "+title+" " );
 590 }
 591
 592 void MainInterface::setName( QString name )
 593 {
 594     nameLabel->setText( " " + name+" " );
 595 }
 596
 597 void MainInterface::setStatus( int status )
 598 {
 599     if( status == 1 ) // Playing
 600         ui.playButton->setIcon( QIcon( ":/pixmaps/pause.png" ) );
 601     else
 602         ui.playButton->setIcon( QIcon( ":/pixmaps/play.png" ) );
 603 }
 604
 605 #define HELP_MENU N_("Menu")
 606 #define HELP_PCH N_("Previous chapter")
 607 #define HELP_NCH N_("Next chapter")
 608 #define HELP_PTR N_("Previous track")
 609 #define HELP_NTR N_("Next track")
 610
 611 void MainInterface::setNavigation( int navigation )
 612 {
 613     // 1 = chapter, 2 = title, 0 = no
 614     if( navigation == 0 )
 615     {
 616         ui.discFrame->hide();
 617     } else if( navigation == 1 ) {
 618         ui.prevSectionButton->show();
 619         ui.prevSectionButton->setToolTip( qfu(HELP_PCH) );
 620         ui.nextSectionButton->show();
 621         ui.nextSectionButton->setToolTip( qfu(HELP_NCH) );
 622         ui.menuButton->show();
 623         ui.discFrame->show();
 624     } else {
 625         ui.prevSectionButton->show();
 626         ui.prevSectionButton->setToolTip( qfu(HELP_PCH) );
 627         ui.nextSectionButton->show();
 628         ui.nextSectionButton->setToolTip( qfu(HELP_NCH) );
 629         ui.menuButton->hide();
 630         ui.discFrame->show();
 631     }
 632 }
 633
 634 static bool b_my_volume;
 635
 636 void MainInterface::updateOnTimer()
 637 {
 638     /* \todo Make this event-driven */
 639     advControls->enableInput( THEMIM->getIM()->hasInput() );
 640     advControls->enableVideo( THEMIM->getIM()->hasVideo() );
 641
 642     if( intf_ShouldDie( p_intf ) )
 643     {
 644         QApplication::closeAllWindows();
 645         QApplication::quit();
 646     }
 647     if( need_components_update )
 648     {
 649         doComponentsUpdate();
 650         need_components_update = false;
 651     }
 652
 653     audio_volume_t i_volume;
 654     aout_VolumeGet( p_intf, &i_volume );
 655     i_volume = (i_volume *  200 )/ AOUT_VOLUME_MAX ;
 656     int i_gauge = ui.volumeSlider->value();
 657     b_my_volume = false;
 658     if( i_volume - i_gauge > 1 || i_gauge - i_volume > 1 )
 659     {
 660         b_my_volume = true;
 661         ui.volumeSlider->setValue( i_volume );
 662         b_my_volume = false;
 663     }
 664 }
 665
 666 void MainInterface::closeEvent( QCloseEvent *e )
 667 {
 668     hide();
 669     p_intf->b_die = VLC_TRUE;
 670 }
 671
 672 void MainInterface::updateVolume( int sliderVolume )
 673 {
 674     if( !b_my_volume )
 675     {
 676         int i_res = sliderVolume * AOUT_VOLUME_MAX /
 677                             (2*ui.volumeSlider->maximum() );
 678         aout_VolumeSet( p_intf, i_res );
 679     }
 680 }
 681
 682 static int InteractCallback( vlc_object_t *p_this,
 683                              const char *psz_var, vlc_value_t old_val,
 684                              vlc_value_t new_val, void *param )
 685 {
 686     intf_dialog_args_t *p_arg = new intf_dialog_args_t;
 687     p_arg->p_dialog = (interaction_dialog_t *)(new_val.p_address);
 688     DialogEvent *event = new DialogEvent( INTF_DIALOG_INTERACTION, 0, p_arg );
 689     QApplication::postEvent( THEDP, static_cast<QEvent*>(event) );
 690     return VLC_SUCCESS;
 691 }