1 /*****************************************************************************
2 * interface_widgets.cpp : Custom widgets for the main interface
3 ****************************************************************************
4 * Copyright ( C ) 2006 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
8 * Jean-Baptiste Kempf <jb@videolan.org>
9 * Rafaël Carré <funman@videolanorg>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * ( at your option ) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 #include "dialogs_provider.hpp"
27 #include "components/interface_widgets.hpp"
28 #include "main_interface.hpp"
29 #include "input_manager.hpp"
31 #include "util/input_slider.hpp"
32 #include "util/customwidgets.hpp"
36 #include <QSpacerItem>
38 #include <QPushButton>
39 #include <QHBoxLayout>
42 #include <QResizeEvent>
45 #define MAX_BG_SIZE 300
47 /**********************************************************************
48 * Video Widget. A simple frame on which video is drawn
49 * This class handles resize issues
50 **********************************************************************/
51 static void *DoRequest( intf_thread_t *, vout_thread_t *, int*,int*,
52 unsigned int *, unsigned int * );
53 static void DoRelease( intf_thread_t *, void * );
54 static int DoControl( intf_thread_t *, void *, int, va_list );
56 VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
58 vlc_mutex_init( p_intf, &lock );
60 CONNECT( this, askResize(), this, SetMinSize() );
61 CONNECT( this, askVideoToShow(), this, show() );
62 setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
65 VideoWidget::~VideoWidget()
67 vlc_mutex_lock( &lock );
70 if( !p_intf->psz_switch_intf )
72 if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
73 vout_Control( p_vout, VOUT_REPARENT );
77 if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
78 vout_Control( p_vout, VOUT_CLOSE );
81 vlc_mutex_unlock( &lock );
82 vlc_mutex_destroy( &lock );
85 QSize VideoWidget::sizeHint() const
90 void *VideoWidget::request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
91 unsigned int *pi_width, unsigned int *pi_height )
93 emit askVideoToShow();
96 msg_Dbg( p_intf, "embedded video already in use" );
101 return ( void* )winId();
104 void VideoWidget::SetMinSize()
106 setMinimumSize( 16, 16 );
109 void VideoWidget::release( void *p_win )
113 /**********************************************************************
114 * Background Widget. Show a simple image background. Currently,
115 * it's a static cone.
116 **********************************************************************/
117 BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i ) :
118 QFrame( NULL ), p_intf( _p_i )
121 setAutoFillBackground( true );
123 plt.setColor( QPalette::Active, QPalette::Window , Qt::black );
124 plt.setColor( QPalette::Inactive, QPalette::Window , Qt::black );
128 label->setMaximumHeight( ICON_SIZE );
129 label->setMaximumWidth( ICON_SIZE );
130 label->setScaledContents( true );
131 label->setPixmap( QPixmap( ":/vlc128.png" ) );
132 backgroundLayout = new QHBoxLayout;
133 backgroundLayout->addWidget( label );
134 setLayout( backgroundLayout );
137 BackgroundWidget::~BackgroundWidget()
139 backgroundLayout->takeAt( 0 );
140 delete backgroundLayout;
143 void BackgroundWidget::setArt( QString url )
146 label->setPixmap( QPixmap( ":/vlc128.png" ) );
148 label->setPixmap( QPixmap( url ) );
151 QSize BackgroundWidget::sizeHint() const
156 void BackgroundWidget::resizeEvent( QResizeEvent *e )
158 if( e->size().height() < ICON_SIZE -1 )
159 label->setMaximumWidth( e->size().height() );
161 label->setMaximumWidth( ICON_SIZE );
164 void BackgroundWidget::contextMenuEvent( QContextMenuEvent *event )
166 QVLCMenu::PopupMenu( p_intf, true );
168 /**********************************************************************
169 * Visualization selector panel
170 **********************************************************************/
171 VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
172 QFrame( NULL ), p_intf( _p_i )
174 QHBoxLayout *layout = new QHBoxLayout( this );
175 layout->setMargin( 0 );
176 QPushButton *prevButton = new QPushButton( "Prev" );
177 QPushButton *nextButton = new QPushButton( "Next" );
178 layout->addWidget( prevButton );
179 layout->addWidget( nextButton );
181 layout->addItem( new QSpacerItem( 40,20,
182 QSizePolicy::Expanding, QSizePolicy::Minimum ) );
183 layout->addWidget( new QLabel( qtr( "Current visualization:" ) ) );
185 current = new QLabel( qtr( "None" ) );
186 layout->addWidget( current );
188 BUTTONACT( prevButton, prev() );
189 BUTTONACT( nextButton, next() );
192 setMaximumHeight( 35 );
195 VisualSelector::~VisualSelector()
199 void VisualSelector::prev()
201 char *psz_new = aout_VisualPrev( p_intf );
204 current->setText( qfu( psz_new ) );
209 void VisualSelector::next()
211 char *psz_new = aout_VisualNext( p_intf );
214 current->setText( qfu( psz_new ) );
219 /**********************************************************************
221 **********************************************************************/
223 #define setupSmallButton( aButton ){ \
224 aButton->setMaximumSize( QSize( 26, 26 ) ); \
225 aButton->setMinimumSize( QSize( 26, 26 ) ); \
226 aButton->setIconSize( QSize( 20, 20 ) ); }
228 AdvControlsWidget::AdvControlsWidget( intf_thread_t *_p_i ) :
229 QFrame( NULL ), p_intf( _p_i )
231 QHBoxLayout *advLayout = new QHBoxLayout( this );
232 advLayout->setMargin( 0 );
233 advLayout->setSpacing( 0 );
235 /* FIXME A to B function */
236 ABButton = new QPushButton( "AB" );
237 ABButton->setMaximumSize( QSize( 26, 26 ) );
238 ABButton->setIconSize( QSize( 20, 20 ) );
239 advLayout->addWidget( ABButton );
240 BUTTON_SET_ACT( ABButton, "AB", qtr( "A to B" ), fromAtoB() );
243 CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
244 this, AtoBLoop( float, int, int ) );
246 //FIXME Frame by frame function
247 frameButton = new QPushButton( "Fr" );
248 frameButton->setMaximumSize( QSize( 26, 26 ) );
249 frameButton->setIconSize( QSize( 20, 20 ) );
250 advLayout->addWidget( frameButton );
251 BUTTON_SET_ACT( frameButton, "Fr", qtr( "Frame by Frame" ), frame() );
253 /* FIXME Record function */
254 recordButton = new QPushButton( "R" );
255 recordButton->setMaximumSize( QSize( 26, 26 ) );
256 recordButton->setIconSize( QSize( 20, 20 ) );
257 advLayout->addWidget( recordButton );
258 BUTTON_SET_ACT_I( recordButton, "", record_16px.png,
259 qtr( "Record" ), record() );
261 snapshotButton = new QPushButton( "S" );
262 snapshotButton->setMaximumSize( QSize( 26, 26 ) );
263 snapshotButton->setIconSize( QSize( 20, 20 ) );
264 advLayout->addWidget( snapshotButton );
265 BUTTON_SET_ACT( snapshotButton, "S", qtr( "Take a snapshot" ), snapshot() );
269 AdvControlsWidget::~AdvControlsWidget()
273 void AdvControlsWidget::enableInput( bool enable )
275 ABButton->setEnabled( enable );
276 recordButton->setEnabled( enable );
278 void AdvControlsWidget::enableVideo( bool enable )
280 snapshotButton->setEnabled( enable );
281 frameButton->setEnabled( enable );
284 void AdvControlsWidget::snapshot()
286 vout_thread_t *p_vout = (vout_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
287 if( p_vout ) vout_Control( p_vout, VOUT_SNAPSHOT );
290 void AdvControlsWidget::frame()
294 void AdvControlsWidget::fromAtoB()
298 timeA = var_GetTime( THEMIM->getInput(), "time" );
299 ABButton->setText( "A->..." );
304 timeB = var_GetTime( THEMIM->getInput(), "time" );
305 var_SetTime( THEMIM->getInput(), "time" , timeA );
306 ABButton->setText( "A<=>B" );
311 ABButton->setText( "AB" );
314 void AdvControlsWidget::record(){}
316 void AdvControlsWidget::AtoBLoop( float f_pos, int i_time, int i_length )
320 if( i_time >= (int)(timeB/1000000) )
321 var_SetTime( THEMIM->getInput(), "time" , timeA );
325 /*****************************
326 * DA Control Widget !
327 *****************************/
328 ControlsWidget::ControlsWidget( intf_thread_t *_p_i,
331 QFrame( NULL ), p_intf( _p_i )
333 controlLayout = new QGridLayout( this );
334 controlLayout->setSpacing( 0 );
335 setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Minimum );
337 /** The main Slider **/
338 slider = new InputSlider( Qt::Horizontal, NULL );
339 controlLayout->addWidget( slider, 0, 1, 1, 16 );
340 /* Update the position when the IM has changed */
341 CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
342 slider, setPosition( float,int, int ) );
343 /* And update the IM, when the position has changed */
344 CONNECT( slider, sliderDragged( float ),
345 THEMIM->getIM(), sliderUpdate( float ) );
347 /** Slower and faster Buttons **/
348 slowerButton = new QPushButton;
349 slowerButton->setFlat( true );
350 slowerButton->setMaximumSize( QSize( 26, 20 ) );
352 BUTTON_SET_ACT( slowerButton, "-", qtr( "Slower" ), slower() );
353 controlLayout->addWidget( slowerButton, 0, 0 );
355 fasterButton = new QPushButton;
356 fasterButton->setFlat( true );
357 fasterButton->setMaximumSize( QSize( 26, 20 ) );
359 BUTTON_SET_ACT( fasterButton, "+", qtr( "Faster" ), faster() );
360 controlLayout->addWidget( fasterButton, 0, 17 );
362 /* advanced Controls handling */
363 b_advancedVisible = b_advControls;
365 advControls = new AdvControlsWidget( p_intf );
366 controlLayout->addWidget( advControls, 1, 3, 2, 4, Qt::AlignBottom );
367 if( !b_advancedVisible ) advControls->hide();
369 /** Disc and Menus handling */
370 discFrame = new QFrame( this );
372 QHBoxLayout *discLayout = new QHBoxLayout( discFrame );
373 discLayout->setSpacing( 0 );
374 discLayout->setMargin( 0 );
376 prevSectionButton = new QPushButton( discFrame );
377 setupSmallButton( prevSectionButton );
378 discLayout->addWidget( prevSectionButton );
380 menuButton = new QPushButton( discFrame );
381 setupSmallButton( menuButton );
382 discLayout->addWidget( menuButton );
384 nextSectionButton = new QPushButton( discFrame );
385 setupSmallButton( nextSectionButton );
386 discLayout->addWidget( nextSectionButton );
388 controlLayout->addWidget( discFrame, 1, 10, 2, 3, Qt::AlignBottom );
390 BUTTON_SET_IMG( prevSectionButton, "", previous.png, "" );
391 BUTTON_SET_IMG( nextSectionButton, "", next.png, "" );
392 BUTTON_SET_IMG( menuButton, "", previous.png, "" );
396 /* Change the navigation button display when the IM navigation changes */
397 CONNECT( THEMIM->getIM(), navigationChanged( int ),
398 this, setNavigation( int ) );
399 /* Changes the IM navigation when triggered on the nav buttons */
400 CONNECT( prevSectionButton, clicked(), THEMIM->getIM(),
402 CONNECT( nextSectionButton, clicked(), THEMIM->getIM(),
404 CONNECT( menuButton, clicked(), THEMIM->getIM(),
409 * Merge with upper menu in a StackLayout
413 QSizePolicy sizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
414 sizePolicy.setHorizontalStretch( 0 );
415 sizePolicy.setVerticalStretch( 0 );
418 playButton = new QPushButton;
419 playButton->setSizePolicy( sizePolicy );
420 playButton->setMaximumSize( QSize( 38, 38 ) );
421 playButton->setMinimumSize( QSize( 45, 45 ) );
422 playButton->setIconSize( QSize( 30, 30 ) );
424 controlLayout->addWidget( playButton, 2, 0, 2, 2 );
426 controlLayout->setColumnMinimumWidth( 2, 20 );
427 controlLayout->setColumnStretch( 2, 0 );
429 /** Prev + Stop + Next Block **/
430 QHBoxLayout *controlButLayout = new QHBoxLayout;
431 controlButLayout->setSpacing( 0 ); /* Don't remove that, will be useful */
434 QPushButton *prevButton = new QPushButton;
435 prevButton->setSizePolicy( sizePolicy );
436 setupSmallButton( prevButton );
438 controlButLayout->addWidget( prevButton );
441 QPushButton *stopButton = new QPushButton;
442 stopButton->setSizePolicy( sizePolicy );
443 setupSmallButton( stopButton );
445 controlButLayout->addWidget( stopButton );
448 QPushButton *nextButton = new QPushButton;
449 nextButton->setSizePolicy( sizePolicy );
450 setupSmallButton( nextButton );
452 controlButLayout->addWidget( nextButton );
454 /* Add this block to the main layout */
455 controlLayout->addLayout( controlButLayout, 3, 3, 1, 3 );
457 BUTTON_SET_ACT_I( playButton, "", play.png, qtr( "Play" ), play() );
458 BUTTON_SET_ACT_I( prevButton, "" , previous.png,
459 qtr( "Previous" ), prev() );
460 BUTTON_SET_ACT_I( nextButton, "", next.png, qtr( "Next" ), next() );
461 BUTTON_SET_ACT_I( stopButton, "", stop.png, qtr( "Stop" ), stop() );
463 controlLayout->setColumnStretch( 7 , 2 );
466 * Other first Line buttons
467 * Might need to be inside a frame to avoid a few resizing pb
470 /** Fullscreen/Visualisation **/
471 fullscreenButton = new QPushButton( "F" );
472 BUTTON_SET_ACT( fullscreenButton, "F", qtr( "Fullscreen" ), fullscreen() );
473 setupSmallButton( fullscreenButton );
474 controlLayout->addWidget( fullscreenButton, 3, 10 );
476 /** Playlist Button **/
477 playlistButton = new QPushButton;
478 setupSmallButton( playlistButton );
479 controlLayout->addWidget( playlistButton, 3, 11 );
480 BUTTON_SET_IMG( playlistButton, "" , playlist.png, qtr( "Show playlist" ) );
482 /** extended Settings **/
483 QPushButton *extSettingsButton = new QPushButton( "F" );
484 BUTTON_SET_ACT( extSettingsButton, "Ex", qtr( "Extended Settings" ),
486 setupSmallButton( extSettingsButton );
487 controlLayout->addWidget( extSettingsButton, 3, 12 );
489 controlLayout->setColumnStretch( 14, 5 );
492 VolumeClickHandler *hVolLabel = new VolumeClickHandler( p_intf, this );
494 volMuteLabel = new QLabel;
495 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
496 volMuteLabel->setToolTip( qtr( "Mute" ) );
497 volMuteLabel->installEventFilter( hVolLabel );
498 controlLayout->addWidget( volMuteLabel, 3, 15 );
502 volumeSlider = new SoundSlider( this,
503 config_GetInt( p_intf, "volume-step" ),
504 config_GetInt( p_intf, "qt-volume-complete" ) );
508 volumeSlider = new QSlider( this );
509 volumeSlider->setOrientation( Qt::Horizontal );
511 volumeSlider->setMaximumSize( QSize( 200, 40 ) );
512 volumeSlider->setMinimumSize( QSize( 80, 20 ) );
513 volumeSlider->setFocusPolicy( Qt::NoFocus );
514 controlLayout->addWidget( volumeSlider, 3, 16, 1, 2 );
516 /* Set the volume from the config */
517 volumeSlider->setValue( ( config_GetInt( p_intf, "volume" ) ) *
518 VOLUME_MAX / (AOUT_VOLUME_MAX/2) );
520 /* Volume control connection */
521 CONNECT( volumeSlider, valueChanged( int ), this, updateVolume( int ) );
522 msg_Dbg( p_intf, "size: %i - %i", size().height(), size().width() );
524 ControlsWidget::~ControlsWidget()
527 void ControlsWidget::stop()
532 void ControlsWidget::play()
534 if( THEPL->current.i_size == 0 )
536 /* The playlist is empty, open a file requester */
537 THEDP->openFileDialog();
541 THEMIM->togglePlayPause();
544 void ControlsWidget::prev()
549 void ControlsWidget::next()
554 void ControlsWidget::setNavigation( int navigation )
556 #define HELP_MENU N_( "Menu" )
557 #define HELP_PCH N_( "Previous chapter" )
558 #define HELP_NCH N_( "Next chapter" )
559 #define HELP_PTR N_( "Previous track" )
560 #define HELP_NTR N_( "Next track" )
562 // 1 = chapter, 2 = title, 0 = no
563 if( navigation == 0 )
566 } else if( navigation == 1 ) {
567 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
568 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
572 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
573 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
579 static bool b_my_volume;
580 void ControlsWidget::updateVolume( int i_sliderVolume )
584 int i_res = i_sliderVolume * (AOUT_VOLUME_MAX / 2) / VOLUME_MAX;
585 aout_VolumeSet( p_intf, i_res );
587 if( i_sliderVolume == 0 )
588 volMuteLabel->setPixmap( QPixmap(":/pixmaps/volume-muted.png" ) );
589 else if( i_sliderVolume < VOLUME_MAX / 2 )
590 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-low.png" ) );
591 else volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
594 void ControlsWidget::updateOnTimer()
597 audio_volume_t i_volume;
598 aout_VolumeGet( p_intf, &i_volume );
599 i_volume = ( i_volume * VOLUME_MAX )/ (AOUT_VOLUME_MAX/2) ;
600 int i_gauge = volumeSlider->value();
602 if( i_volume - i_gauge > 1 || i_gauge - i_volume > 1 )
605 volumeSlider->setValue( i_volume );
609 /* Activate the interface buttons according to the presence of the input */
610 enableInput( THEMIM->getIM()->hasInput() );
611 //enableVideo( THEMIM->getIM()->hasVideo() );
615 void ControlsWidget::setStatus( int status )
617 if( status == PLAYING_S ) // Playing
618 playButton->setIcon( QIcon( ":/pixmaps/pause.png" ) );
620 playButton->setIcon( QIcon( ":/pixmaps/play.png" ) );
625 * This functions toggle the fullscreen mode
626 * If there is no video, it should first activate Visualisations...
627 * This has also to be fixed in enableVideo()
629 void ControlsWidget::fullscreen()
631 vout_thread_t *p_vout = (vout_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
634 var_SetBool( p_vout, "fullscreen", !var_GetBool( p_vout, "fullscreen" ) );
635 vlc_object_release( p_vout );
639 void ControlsWidget::extSettings()
641 THEDP->extendedDialog();
644 void ControlsWidget::slower()
646 THEMIM->getIM()->slower();
649 void ControlsWidget::faster()
651 THEMIM->getIM()->faster();
654 void ControlsWidget::enableInput( bool enable )
656 slowerButton->setEnabled( enable );
657 slider->setEnabled( enable );
658 fasterButton->setEnabled( enable );
660 /* Advanced Buttons too */
661 advControls->enableInput( enable );
664 void ControlsWidget::enableVideo( bool enable )
666 // TODO Later make the fullscreenButton toggle Visualisation and so on.
667 fullscreenButton->setEnabled( enable );
669 /* Advanced Buttons too */
670 advControls->enableVideo( enable );
673 void ControlsWidget::toggleAdvanced()
675 if( !VISIBLE( advControls ) )
678 b_advancedVisible = true;
683 b_advancedVisible = false;
685 //FIXME connect this one :D
686 emit advancedControlsToggled( b_advancedVisible ); // doComponentsUpdate();
689 /**********************************************************************
690 * Playlist Widget. The embedded playlist
691 **********************************************************************/
692 #include "components/playlist/panels.hpp"
693 #include "components/playlist/selector.hpp"
695 PlaylistWidget::PlaylistWidget( intf_thread_t *_p_i ) :
698 /* Left Part and design */
699 QWidget *leftW = new QWidget( this );
700 QVBoxLayout *left = new QVBoxLayout( leftW );
702 /* Source Selector */
703 selector = new PLSelector( this, p_intf, THEPL );
704 left->addWidget( selector );
707 art = new QLabel( "" );
708 art->setMinimumHeight( 128 );
709 art->setMinimumWidth( 128 );
710 art->setMaximumHeight( 128 );
711 art->setMaximumWidth( 128 );
712 art->setScaledContents( true );
713 art->setPixmap( QPixmap( ":/noart.png" ) );
714 left->addWidget( art );
716 /* Initialisation of the playlist */
717 playlist_item_t *p_root = playlist_GetPreferredNode( THEPL,
718 THEPL->p_local_category );
720 rightPanel = qobject_cast<PLPanel *>( new StandardPLPanel( this,
721 p_intf, THEPL, p_root ) );
724 CONNECT( selector, activated( int ), rightPanel, setRoot( int ) );
726 CONNECT( qobject_cast<StandardPLPanel *>( rightPanel )->model,
727 artSet( QString ) , this, setArt( QString ) );
728 /* Forward removal requests from the selector to the main panel */
729 CONNECT( qobject_cast<PLSelector *>( selector )->model,
731 qobject_cast<StandardPLPanel *>( rightPanel ), removeItem( int ) );
733 connect( selector, SIGNAL( activated( int ) ),
734 this, SIGNAL( rootChanged( int ) ) );
735 emit rootChanged( p_root->i_id );
737 /* Add the two sides of the QSplitter */
739 addWidget( rightPanel );
741 leftW->setMaximumWidth( 250 );
742 setCollapsible( 1, false );
745 sizeList << 180 << 520 ;
746 setSizes( sizeList );
749 void PlaylistWidget::setArt( QString url )
752 art->setPixmap( QPixmap( ":/noart.png" ) );
753 else if( prevArt != url )
755 art->setPixmap( QPixmap( url ) );
761 PlaylistWidget::~PlaylistWidget()
765 /**********************************************************************
766 * Speed control widget
767 **********************************************************************/
768 SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i ) :
769 QFrame( NULL ), p_intf( _p_i )
771 QSizePolicy sizePolicy( QSizePolicy::Maximum, QSizePolicy::Fixed );
772 sizePolicy.setHorizontalStretch( 0 );
773 sizePolicy.setVerticalStretch( 0 );
775 speedSlider = new QSlider;
776 speedSlider->setSizePolicy( sizePolicy );
777 speedSlider->setMaximumSize( QSize( 80, 200 ) );
778 speedSlider->setOrientation( Qt::Vertical );
779 speedSlider->setTickPosition( QSlider::TicksRight );
781 speedSlider->setRange( -100, 100 );
782 speedSlider->setSingleStep( 10 );
783 speedSlider->setPageStep( 20 );
784 speedSlider->setTickInterval( 20 );
786 CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );
788 normalSpeedButton = new QPushButton( "N" );
789 normalSpeedButton->setMaximumSize( QSize( 26, 20 ) );
790 normalSpeedButton->setFlat( true );
791 normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );
793 CONNECT( normalSpeedButton, clicked(), this, resetRate() );
795 QVBoxLayout *speedControlLayout = new QVBoxLayout;
796 speedControlLayout->addWidget(speedSlider);
797 speedControlLayout->addWidget(normalSpeedButton);
798 setLayout(speedControlLayout);
801 SpeedControlWidget::~SpeedControlWidget()
805 #define RATE_SLIDER_MAXIMUM 3.0
806 #define RATE_SLIDER_MINIMUM 0.3
807 #define RATE_SLIDER_LENGTH 100.0
809 void SpeedControlWidget::updateControls( int rate )
811 if( speedSlider->isSliderDown() )
813 //We don't want to change anything if the user is using the slider
818 double speed = INPUT_RATE_DEFAULT / (double)rate;
820 if( rate >= INPUT_RATE_DEFAULT )
822 if( speed < RATE_SLIDER_MINIMUM )
824 sliderValue = speedSlider->minimum();
828 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
829 / ( 1.0 - RATE_SLIDER_MAXIMUM ) );
834 if( speed > RATE_SLIDER_MAXIMUM )
836 sliderValue = speedSlider->maximum();
840 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
841 / ( RATE_SLIDER_MAXIMUM - 1.0 ) );
845 //Block signals to avoid feedback loop
846 speedSlider->blockSignals( true );
847 speedSlider->setValue( sliderValue );
848 speedSlider->blockSignals( false );
851 void SpeedControlWidget::updateRate( int sliderValue )
855 if( sliderValue < 0.0 )
857 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
858 ( sliderValue * ( 1.0 - RATE_SLIDER_MINIMUM ) + RATE_SLIDER_LENGTH ) ;
862 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
863 ( sliderValue * ( RATE_SLIDER_MAXIMUM - 1.0 ) + RATE_SLIDER_LENGTH );
866 THEMIM->getIM()->setRate(rate);
869 void SpeedControlWidget::resetRate()
871 THEMIM->getIM()->setRate(INPUT_RATE_DEFAULT);