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"
28 #include "components/interface_widgets.hpp"
29 #include "main_interface.hpp"
30 #include "input_manager.hpp"
32 #include "util/input_slider.hpp"
36 #include <QSpacerItem>
38 #include <QPushButton>
39 #include <QHBoxLayout>
42 #include <QResizeEvent>
46 /**********************************************************************
47 * Video Widget. A simple frame on which video is drawn
48 * This class handles resize issues
49 **********************************************************************/
50 static void *DoRequest( intf_thread_t *, vout_thread_t *, int*,int*,
51 unsigned int *, unsigned int * );
52 static void DoRelease( intf_thread_t *, void * );
53 static int DoControl( intf_thread_t *, void *, int, va_list );
55 VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
57 vlc_mutex_init( p_intf, &lock );
59 CONNECT( this, askResize(), this, SetMinSize() );
60 setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
63 VideoWidget::~VideoWidget()
65 vlc_mutex_lock( &lock );
68 if( !p_intf->psz_switch_intf )
70 if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
71 vout_Control( p_vout, VOUT_REPARENT );
75 if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
76 vout_Control( p_vout, VOUT_CLOSE );
79 vlc_mutex_unlock( &lock );
80 vlc_mutex_destroy( &lock );
83 QSize VideoWidget::sizeHint() const
88 void *VideoWidget::request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
89 unsigned int *pi_width, unsigned int *pi_height )
93 msg_Dbg( p_intf, "embedded video already in use" );
98 return ( void* )winId();
101 void VideoWidget::SetMinSize()
103 setMinimumSize( 16, 16 );
106 void VideoWidget::release( void *p_win )
110 /**********************************************************************
111 * Background Widget. Show a simple image background. Currently,
112 * it's a static cone.
113 **********************************************************************/
114 BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i ) :
115 QFrame( NULL ), p_intf( _p_i )
118 setAutoFillBackground( true );
120 plt.setColor( QPalette::Active, QPalette::Window , Qt::black );
121 plt.setColor( QPalette::Inactive, QPalette::Window , Qt::black );
124 label = new QLabel( "" );
125 label->setMaximumHeight( ICON_SIZE );
126 label->setMaximumWidth( ICON_SIZE );
127 label->setScaledContents( true );
128 label->setPixmap( QPixmap( ":/vlc128.png" ) );
129 backgroundLayout = new QHBoxLayout;
130 backgroundLayout->addWidget( label );
131 setLayout( backgroundLayout );
134 BackgroundWidget::~BackgroundWidget()
136 backgroundLayout->takeAt( 0 );
137 delete backgroundLayout;
140 void BackgroundWidget::setArt( QString url )
143 label->setPixmap( QPixmap( ":/vlc128.png" ) );
145 label->setPixmap( QPixmap( url ) );
148 QSize BackgroundWidget::sizeHint() const
153 void BackgroundWidget::resizeEvent( QResizeEvent *e )
155 if( e->size().height() < ICON_SIZE -1 )
156 label->setMaximumWidth( e->size().height() );
158 label->setMaximumWidth( ICON_SIZE );
161 /**********************************************************************
162 * Visualization selector panel
163 **********************************************************************/
164 VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
165 QFrame( NULL ), p_intf( _p_i )
167 QHBoxLayout *layout = new QHBoxLayout( this );
168 layout->setMargin( 0 );
169 QPushButton *prevButton = new QPushButton( "Prev" );
170 QPushButton *nextButton = new QPushButton( "Next" );
171 layout->addWidget( prevButton );
172 layout->addWidget( nextButton );
174 layout->addItem( new QSpacerItem( 40,20,
175 QSizePolicy::Expanding, QSizePolicy::Minimum ) );
176 layout->addWidget( new QLabel( qtr( "Current visualization:" ) ) );
178 current = new QLabel( qtr( "None" ) );
179 layout->addWidget( current );
181 BUTTONACT( prevButton, prev() );
182 BUTTONACT( nextButton, next() );
185 setMaximumHeight( 35 );
188 VisualSelector::~VisualSelector()
192 void VisualSelector::prev()
194 char *psz_new = aout_VisualPrev( p_intf );
197 current->setText( qfu( psz_new ) );
202 void VisualSelector::next()
204 char *psz_new = aout_VisualNext( p_intf );
207 current->setText( qfu( psz_new ) );
212 /**********************************************************************
214 **********************************************************************/
216 #define setupSmallButton( aButton ){ \
217 aButton->setMaximumSize( QSize( 26, 26 ) ); \
218 aButton->setMinimumSize( QSize( 26, 26 ) ); \
219 aButton->setIconSize( QSize( 20, 20 ) ); }
221 AdvControlsWidget::AdvControlsWidget( intf_thread_t *_p_i ) :
222 QFrame( NULL ), p_intf( _p_i )
224 QHBoxLayout *advLayout = new QHBoxLayout( this );
225 advLayout->setMargin( 0 );
226 advLayout->setSpacing( 0 );
228 /* FIXME A to B function */
229 ABButton = new QPushButton( "AB" );
230 ABButton->setMaximumSize( QSize( 26, 26 ) );
231 ABButton->setIconSize( QSize( 20, 20 ) );
232 advLayout->addWidget( ABButton );
233 BUTTON_SET_ACT( ABButton, "AB", qtr( "A to B" ), fromAtoB() );
235 snapshotButton = new QPushButton( "S" );
236 snapshotButton->setMaximumSize( QSize( 26, 26 ) );
237 snapshotButton->setIconSize( QSize( 20, 20 ) );
238 advLayout->addWidget( snapshotButton );
239 BUTTON_SET_ACT( snapshotButton, "S", qtr( "Take a snapshot" ), snapshot() );
241 //FIXME Frame by frame function
242 frameButton = new QPushButton( "Fr" );
243 frameButton->setMaximumSize( QSize( 26, 26 ) );
244 frameButton->setIconSize( QSize( 20, 20 ) );
245 advLayout->addWidget( frameButton );
246 BUTTON_SET_ACT( frameButton, "Fr", qtr( "Frame by Frame" ), frame() );
248 /* FIXME Record function */
249 recordButton = new QPushButton( "R" );
250 recordButton->setMaximumSize( QSize( 26, 26 ) );
251 recordButton->setIconSize( QSize( 20, 20 ) );
252 advLayout->addWidget( recordButton );
253 BUTTON_SET_ACT( recordButton, "R", qtr( "Record" ), record() );
255 normalButton = new QPushButton( "N" );
256 normalButton->setMaximumSize( QSize( 26, 26 ) );
257 normalButton->setIconSize( QSize( 20, 20 ) );
258 advLayout->addWidget( normalButton );
259 BUTTON_SET_ACT( normalButton, "N", qtr( "Normal rate" ), normal() );
263 AdvControlsWidget::~AdvControlsWidget()
267 void AdvControlsWidget::enableInput( bool enable )
269 ABButton->setEnabled( enable );
270 recordButton->setEnabled( enable );
271 normalButton->setEnabled( enable );
273 void AdvControlsWidget::enableVideo( bool enable )
275 snapshotButton->setEnabled( enable );
276 frameButton->setEnabled( enable );
279 void AdvControlsWidget::normal()
281 THEMIM->getIM()->normalRate();
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(){}
291 void AdvControlsWidget::fromAtoB(){}
292 void AdvControlsWidget::record(){}
294 /*****************************
295 * DA Control Widget !
296 *****************************/
297 ControlsWidget::ControlsWidget( intf_thread_t *_p_i, bool b_advControls ) :
298 QFrame( NULL ), p_intf( _p_i )
300 //QSize size( 500, 200 );
302 controlLayout = new QGridLayout( this );
306 palette2.setColor(this->backgroundRole(), Qt::magenta);
307 setPalette(palette2);
310 /** The main Slider **/
311 slider = new InputSlider( Qt::Horizontal, NULL );
312 controlLayout->addWidget( slider, 0, 1, 1, 16 );
313 /* Update the position when the IM has changed */
314 CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
315 slider, setPosition( float,int, int ) );
316 /* And update the IM, when the position has changed */
317 CONNECT( slider, sliderDragged( float ),
318 THEMIM->getIM(), sliderUpdate( float ) );
320 /** Slower and faster Buttons **/
321 slowerButton = new QPushButton( "S" );
322 BUTTON_SET_ACT( slowerButton, "S", qtr( "Slower" ), slower() );
323 controlLayout->addWidget( slowerButton, 0, 0 );
324 slowerButton->setMaximumSize( QSize( 26, 20 ) );
326 fasterButton = new QPushButton( "F" );
327 BUTTON_SET_ACT( fasterButton, "F", qtr( "Faster" ), faster() );
328 controlLayout->addWidget( fasterButton, 0, 17 );
329 fasterButton->setMaximumSize( QSize( 26, 20 ) );
331 /** TODO: Insert here the AdvControls Widget
332 * Then fix all the size issues in main_interface.cpp
334 /* advanced Controls handling */
335 b_advancedVisible = b_advControls;
337 advControls = new AdvControlsWidget( p_intf );
338 controlLayout->addWidget( advControls, 1, 3, 2, 5, Qt::AlignBottom );
339 if( !b_advancedVisible ) advControls->hide();
340 //THIS should be removed. need_components_update = true;
342 /** Disc and Menus handling */
343 discFrame = new QFrame( this );
345 QHBoxLayout *discLayout = new QHBoxLayout( discFrame );
346 discLayout->setSpacing( 0 );
347 discLayout->setMargin( 0 );
349 prevSectionButton = new QPushButton( discFrame );
350 setupSmallButton( prevSectionButton );
351 discLayout->addWidget( prevSectionButton );
353 menuButton = new QPushButton( discFrame );
354 setupSmallButton( menuButton );
355 discLayout->addWidget( menuButton );
357 nextSectionButton = new QPushButton( discFrame );
358 setupSmallButton( nextSectionButton );
359 discLayout->addWidget( nextSectionButton );
361 controlLayout->addWidget( discFrame, 1, 10, 2, 3, Qt::AlignBottom );
363 BUTTON_SET_IMG( prevSectionButton, "", previous.png, "" );
364 BUTTON_SET_IMG( nextSectionButton, "", next.png, "" );
365 BUTTON_SET_IMG( menuButton, "", previous.png, "" );
369 /* Change the navigation button display when the IM navigation changes */
370 CONNECT( THEMIM->getIM(), navigationChanged( int ),
371 this, setNavigation( int ) );
372 /* Changes the IM navigation when triggered on the nav buttons */
373 CONNECT( prevSectionButton, clicked(), THEMIM->getIM(),
375 CONNECT( nextSectionButton, clicked(), THEMIM->getIM(),
377 CONNECT( menuButton, clicked(), THEMIM->getIM(),
385 QSizePolicy sizePolicy( QSizePolicy::Maximum, QSizePolicy::Fixed );
386 sizePolicy.setHorizontalStretch( 0 );
387 sizePolicy.setVerticalStretch( 0 );
390 playButton = new QPushButton;
391 playButton->setSizePolicy( sizePolicy );
392 playButton->setMaximumSize( QSize( 45, 45 ) );
393 playButton->setIconSize( QSize( 30, 30 ) );
395 controlLayout->addWidget( playButton, 2, 0, 2, 2, Qt::AlignBottom );
397 controlLayout->setColumnMinimumWidth( 2, 20 );
398 controlLayout->setColumnStretch( 2, 0 );
400 /** Prev + Stop + Next Block **/
401 QHBoxLayout *controlButLayout = new QHBoxLayout;
402 controlButLayout->setSpacing( 0 ); /* Don't remove that, will be useful */
405 QPushButton *prevButton = new QPushButton;
406 prevButton->setSizePolicy( sizePolicy );
407 setupSmallButton( prevButton );
409 controlButLayout->addWidget( prevButton );
412 QPushButton *stopButton = new QPushButton;
413 stopButton->setSizePolicy( sizePolicy );
414 setupSmallButton( stopButton );
416 controlButLayout->addWidget( stopButton );
419 QPushButton *nextButton = new QPushButton;
420 nextButton->setSizePolicy( sizePolicy );
421 setupSmallButton( nextButton );
423 controlButLayout->addWidget( nextButton );
425 /* Add this block to the main layout */
426 controlLayout->addLayout( controlButLayout, 3, 3, 1, 3 );
428 BUTTON_SET_ACT_I( playButton, "", play.png, qtr( "Play" ), play() );
429 BUTTON_SET_ACT_I( prevButton, "" , previous.png,
430 qtr( "Previous" ), prev() );
431 BUTTON_SET_ACT_I( nextButton, "", next.png, qtr( "Next" ), next() );
432 BUTTON_SET_ACT_I( stopButton, "", stop.png, qtr( "Stop" ), stop() );
434 controlLayout->setColumnStretch( 8 , 10 );
435 controlLayout->setColumnStretch( 9, 0 );
438 * Other first Line buttons
439 * Might need to be inside a frame to avoid a few resizing pb
442 /** Fullscreen/Visualisation **/
443 fullscreenButton = new QPushButton( "F" );
444 BUTTON_SET_ACT( fullscreenButton, "F", qtr( "Fullscreen" ), fullscreen() );
445 setupSmallButton( fullscreenButton );
446 controlLayout->addWidget( fullscreenButton, 3, 10 );
448 /** Playlist Button **/
449 playlistButton = new QPushButton;
450 setupSmallButton( playlistButton );
451 controlLayout->addWidget( playlistButton, 3, 11 );
453 /** extended Settings **/
454 QPushButton *extSettingsButton = new QPushButton( "F" );
455 BUTTON_SET_ACT( extSettingsButton, "Ex", qtr( "Extended Settings" ),
457 setupSmallButton( extSettingsButton );
458 controlLayout->addWidget( extSettingsButton, 3, 12 );
461 QPushButton *prefsButton = new QPushButton( "P" );
462 BUTTON_SET_ACT( prefsButton, "P", qtr( "Preferences / Settings" ),
464 setupSmallButton( prefsButton );
465 controlLayout->addWidget( prefsButton, 3, 13 );
467 controlLayout->setColumnStretch( 14, 5 );
470 VolumeClickHandler *h = new VolumeClickHandler( p_intf, this );
472 volMuteLabel = new QLabel;
473 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
474 volMuteLabel->setToolTip( qtr( "Mute" ) );
475 volMuteLabel->installEventFilter( h );
478 * Change this slider to use a nice Amarok-like one
479 * Add a Context menu to change to the most useful %
482 * THis percerntage thing has to be handled correctly
483 * This has to match to the OSD
485 volumeSlider = new QSlider;
486 volumeSlider->setSizePolicy( sizePolicy );
487 volumeSlider->setMaximumSize( QSize( 80, 200 ) );
488 volumeSlider->setOrientation( Qt::Horizontal );
490 volumeSlider->setMaximum( VOLUME_MAX );
491 volumeSlider->setFocusPolicy( Qt::NoFocus );
492 controlLayout->addWidget( volMuteLabel, 3, 15 );
493 controlLayout->addWidget( volumeSlider, 3, 16, 1, 2 );
495 /* Volume control connection */
496 CONNECT( volumeSlider, valueChanged( int ), this, updateVolume( int ) );
498 ControlsWidget::~ControlsWidget()
501 void ControlsWidget::stop()
506 void ControlsWidget::play()
509 msg_Dbg( p_intf, "There is %i playlist items", THEPL->items.i_size ); /* FIXME: remove me */
510 if( playlist_IsEmpty( THEPL ) )
512 /* The playlist is empty, open a file requester */
513 THEDP->openFileDialog();
517 THEMIM->togglePlayPause();
520 void ControlsWidget::prev()
525 void ControlsWidget::next()
530 void ControlsWidget::setNavigation( int navigation )
532 #define HELP_MENU N_( "Menu" )
533 #define HELP_PCH N_( "Previous chapter" )
534 #define HELP_NCH N_( "Next chapter" )
535 #define HELP_PTR N_( "Previous track" )
536 #define HELP_NTR N_( "Next track" )
538 // 1 = chapter, 2 = title, 0 = no
539 if( navigation == 0 )
542 } else if( navigation == 1 ) {
543 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
544 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
548 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
549 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
555 static bool b_my_volume;
556 void ControlsWidget::updateVolume( int i_sliderVolume )
560 int i_res = i_sliderVolume * (AOUT_VOLUME_MAX / 2) / VOLUME_MAX;
561 aout_VolumeSet( p_intf, i_res );
563 if( i_sliderVolume == 0 )
564 volMuteLabel->setPixmap( QPixmap(":/pixmaps/volume-muted.png" ) );
565 else if( i_sliderVolume < VOLUME_MAX / 2 )
566 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-low.png" ) );
567 else volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
570 void ControlsWidget::updateOnTimer()
573 audio_volume_t i_volume;
574 aout_VolumeGet( p_intf, &i_volume );
575 i_volume = ( i_volume * VOLUME_MAX )/ (AOUT_VOLUME_MAX/2) ;
576 int i_gauge = volumeSlider->value();
578 if( i_volume - i_gauge > 1 || i_gauge - i_volume > 1 )
581 volumeSlider->setValue( i_volume );
585 /* Activate the interface buttons according to the presence of the input */
586 enableInput( THEMIM->getIM()->hasInput() );
587 //enableVideo( THEMIM->getIM()->hasVideo() );
591 void ControlsWidget::setStatus( int status )
593 if( status == PLAYING_S ) // Playing
594 playButton->setIcon( QIcon( ":/pixmaps/pause.png" ) );
596 playButton->setIcon( QIcon( ":/pixmaps/play.png" ) );
601 * This functions toggle the fullscreen mode
602 * If there is no video, it should first activate Visualisations...
603 * This has also to be fixed in enableVideo()
605 void ControlsWidget::fullscreen()
607 vout_thread_t *p_vout = (vout_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
610 var_SetBool( p_vout, "fullscreen", !var_GetBool( p_vout, "fullscreen" ) );
611 vlc_object_release( p_vout );
615 void ControlsWidget::extSettings()
617 THEDP->extendedDialog();
619 void ControlsWidget::prefs()
621 THEDP->prefsDialog();
624 void ControlsWidget::slower()
626 THEMIM->getIM()->slower();
629 void ControlsWidget::faster()
631 THEMIM->getIM()->faster();
634 void ControlsWidget::enableInput( bool enable )
636 slowerButton->setEnabled( enable );
637 slider->setEnabled( enable );
638 fasterButton->setEnabled( enable );
640 /* Advanced Buttons too */
641 advControls->enableInput( enable );
644 void ControlsWidget::enableVideo( bool enable )
646 // TODO Later make the fullscreenButton toggle Visualisation and so on.
647 fullscreenButton->setEnabled( enable );
649 /* Advanced Buttons too */
650 advControls->enableVideo( enable );
653 void ControlsWidget::toggleAdvanced()
655 if( !VISIBLE( advControls ) )
658 b_advancedVisible = true;
663 b_advancedVisible = false;
665 //FIXME connect this one :D
666 emit advancedControlsToggled( b_advancedVisible ); // doComponentsUpdate();
669 /**********************************************************************
670 * Playlist Widget. The embedded playlist
671 **********************************************************************/
672 #include "components/playlist/panels.hpp"
673 #include "components/playlist/selector.hpp"
675 PlaylistWidget::PlaylistWidget( intf_thread_t *_p_i ) :
678 /* Left Part and design */
679 QWidget *leftW = new QWidget( this );
680 QVBoxLayout *left = new QVBoxLayout( leftW );
682 /* Source Selector */
683 selector = new PLSelector( this, p_intf, THEPL );
684 left->addWidget( selector );
687 art = new QLabel( "" );
688 art->setMinimumHeight( 128 );
689 art->setMinimumWidth( 128 );
690 art->setMaximumHeight( 128 );
691 art->setMaximumWidth( 128 );
692 art->setScaledContents( true );
693 art->setPixmap( QPixmap( ":/noart.png" ) );
694 left->addWidget( art );
696 /* Initialisation of the playlist */
697 playlist_item_t *p_root = playlist_GetPreferredNode( THEPL,
698 THEPL->p_local_category );
700 rightPanel = qobject_cast<PLPanel *>( new StandardPLPanel( this,
701 p_intf, THEPL, p_root ) );
704 CONNECT( selector, activated( int ), rightPanel, setRoot( int ) );
706 CONNECT( qobject_cast<StandardPLPanel *>( rightPanel )->model,
707 artSet( QString ) , this, setArt( QString ) );
708 /* Forward removal requests from the selector to the main panel */
709 CONNECT( qobject_cast<PLSelector *>( selector )->model,
711 qobject_cast<StandardPLPanel *>( rightPanel ), removeItem( int ) );
713 connect( selector, SIGNAL( activated( int ) ),
714 this, SIGNAL( rootChanged( int ) ) );
715 emit rootChanged( p_root->i_id );
717 /* Add the two sides of the QSplitter */
719 addWidget( rightPanel );
721 leftW->setMaximumWidth( 250 );
722 setCollapsible( 1, false );
725 sizeList << 180 << 520 ;
726 setSizes( sizeList );
729 void PlaylistWidget::setArt( QString url )
732 art->setPixmap( QPixmap( ":/noart.png" ) );
733 else if( prevArt != url )
734 art->setPixmap( QPixmap( url ) );
739 PlaylistWidget::~PlaylistWidget()
743 QSize PlaylistWidget::sizeHint() const
748 /**********************************************************************
749 * Speed control widget
750 **********************************************************************/
751 SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i ) :
752 QFrame( NULL ), p_intf( _p_i )
754 QSizePolicy sizePolicy( QSizePolicy::Maximum, QSizePolicy::Fixed );
755 sizePolicy.setHorizontalStretch( 0 );
756 sizePolicy.setVerticalStretch( 0 );
758 speedSlider = new QSlider;
759 speedSlider->setSizePolicy( sizePolicy );
760 speedSlider->setMaximumSize( QSize( 80, 200 ) );
761 speedSlider->setOrientation( Qt::Vertical );
762 speedSlider->setTickPosition( QSlider::TicksRight );
764 speedSlider->setRange( -100, 100 );
765 speedSlider->setSingleStep( 10 );
766 speedSlider->setPageStep( 20 );
767 speedSlider->setTickInterval( 20 );
769 CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );
771 normalSpeedButton = new QPushButton( "N" );
772 normalSpeedButton->setMaximumSize( QSize( 26, 20 ) );
773 normalSpeedButton->setFlat( true );
774 normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );
776 CONNECT( normalSpeedButton, clicked(), this, resetRate() );
778 QVBoxLayout *speedControlLayout = new QVBoxLayout;
779 speedControlLayout->addWidget(speedSlider);
780 speedControlLayout->addWidget(normalSpeedButton);
781 setLayout(speedControlLayout);
784 SpeedControlWidget::~SpeedControlWidget()
788 #define RATE_SLIDER_MAXIMUM 3.0
789 #define RATE_SLIDER_MINIMUM 0.3
790 #define RATE_SLIDER_LENGTH 100.0
792 void SpeedControlWidget::updateControls( int rate )
794 if( speedSlider->isSliderDown() )
796 //We don't want to change anything if the user is using the slider
801 double speed = INPUT_RATE_DEFAULT / (double)rate;
803 if( rate >= INPUT_RATE_DEFAULT )
805 if( speed < RATE_SLIDER_MINIMUM )
807 sliderValue = speedSlider->minimum();
811 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
812 / ( 1.0 - RATE_SLIDER_MAXIMUM ) );
817 if( speed > RATE_SLIDER_MAXIMUM )
819 sliderValue = speedSlider->maximum();
823 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
824 / ( RATE_SLIDER_MAXIMUM - 1.0 ) );
828 //Block signals to avoid feedback loop
829 speedSlider->blockSignals( true );
830 speedSlider->setValue( sliderValue );
831 speedSlider->blockSignals( false );
834 void SpeedControlWidget::updateRate( int sliderValue )
838 if( sliderValue < 0.0 )
840 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
841 ( sliderValue * ( 1.0 - RATE_SLIDER_MINIMUM ) + RATE_SLIDER_LENGTH ) ;
845 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
846 ( sliderValue * ( RATE_SLIDER_MAXIMUM - 1.0 ) + RATE_SLIDER_LENGTH );
849 THEMIM->getIM()->setRate(rate);
852 void SpeedControlWidget::resetRate()
854 THEMIM->getIM()->setRate(INPUT_RATE_DEFAULT);