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"
35 #include <QSpacerItem>
37 #include <QPushButton>
38 #include <QHBoxLayout>
41 #include <QResizeEvent>
44 #define MAX_BG_SIZE 300
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 CONNECT( this, askVideoToShow(), this, show() );
61 setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
64 VideoWidget::~VideoWidget()
66 vlc_mutex_lock( &lock );
69 if( !p_intf->psz_switch_intf )
71 if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
72 vout_Control( p_vout, VOUT_REPARENT );
76 if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
77 vout_Control( p_vout, VOUT_CLOSE );
80 vlc_mutex_unlock( &lock );
81 vlc_mutex_destroy( &lock );
84 QSize VideoWidget::sizeHint() const
89 void *VideoWidget::request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
90 unsigned int *pi_width, unsigned int *pi_height )
92 emit askVideoToShow();
95 msg_Dbg( p_intf, "embedded video already in use" );
100 return ( void* )winId();
103 void VideoWidget::SetMinSize()
105 setMinimumSize( 16, 16 );
108 void VideoWidget::release( void *p_win )
112 /**********************************************************************
113 * Background Widget. Show a simple image background. Currently,
114 * it's a static cone.
115 **********************************************************************/
116 BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i ) :
117 QFrame( NULL ), p_intf( _p_i )
120 setAutoFillBackground( true );
122 plt.setColor( QPalette::Active, QPalette::Window , Qt::black );
123 plt.setColor( QPalette::Inactive, QPalette::Window , Qt::black );
127 label->setMaximumHeight( ICON_SIZE );
128 label->setMaximumWidth( ICON_SIZE );
129 label->setScaledContents( true );
130 label->setPixmap( QPixmap( ":/vlc128.png" ) );
131 backgroundLayout = new QHBoxLayout;
132 backgroundLayout->addWidget( label );
133 setLayout( backgroundLayout );
136 BackgroundWidget::~BackgroundWidget()
138 backgroundLayout->takeAt( 0 );
139 delete backgroundLayout;
142 void BackgroundWidget::setArt( QString url )
145 label->setPixmap( QPixmap( ":/vlc128.png" ) );
147 label->setPixmap( QPixmap( url ) );
150 QSize BackgroundWidget::sizeHint() const
155 void BackgroundWidget::resizeEvent( QResizeEvent *e )
157 if( e->size().height() < ICON_SIZE -1 )
158 label->setMaximumWidth( e->size().height() );
160 label->setMaximumWidth( ICON_SIZE );
163 void BackgroundWidget::contextMenuEvent( QContextMenuEvent *event )
165 QVLCMenu::PopupMenu( p_intf, true );
167 /**********************************************************************
168 * Visualization selector panel
169 **********************************************************************/
170 VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
171 QFrame( NULL ), p_intf( _p_i )
173 QHBoxLayout *layout = new QHBoxLayout( this );
174 layout->setMargin( 0 );
175 QPushButton *prevButton = new QPushButton( "Prev" );
176 QPushButton *nextButton = new QPushButton( "Next" );
177 layout->addWidget( prevButton );
178 layout->addWidget( nextButton );
180 layout->addItem( new QSpacerItem( 40,20,
181 QSizePolicy::Expanding, QSizePolicy::Minimum ) );
182 layout->addWidget( new QLabel( qtr( "Current visualization:" ) ) );
184 current = new QLabel( qtr( "None" ) );
185 layout->addWidget( current );
187 BUTTONACT( prevButton, prev() );
188 BUTTONACT( nextButton, next() );
191 setMaximumHeight( 35 );
194 VisualSelector::~VisualSelector()
198 void VisualSelector::prev()
200 char *psz_new = aout_VisualPrev( p_intf );
203 current->setText( qfu( psz_new ) );
208 void VisualSelector::next()
210 char *psz_new = aout_VisualNext( p_intf );
213 current->setText( qfu( psz_new ) );
218 /**********************************************************************
220 **********************************************************************/
222 #define setupSmallButton( aButton ){ \
223 aButton->setMaximumSize( QSize( 26, 26 ) ); \
224 aButton->setMinimumSize( QSize( 26, 26 ) ); \
225 aButton->setIconSize( QSize( 20, 20 ) ); }
227 AdvControlsWidget::AdvControlsWidget( intf_thread_t *_p_i ) :
228 QFrame( NULL ), p_intf( _p_i )
230 QHBoxLayout *advLayout = new QHBoxLayout( this );
231 advLayout->setMargin( 0 );
232 advLayout->setSpacing( 0 );
234 /* FIXME A to B function */
235 ABButton = new QPushButton( "AB" );
236 ABButton->setMaximumSize( QSize( 26, 26 ) );
237 ABButton->setIconSize( QSize( 20, 20 ) );
238 advLayout->addWidget( ABButton );
239 BUTTON_SET_ACT( ABButton, "AB", qtr( "A to B" ), fromAtoB() );
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_I( recordButton, "", record_16px.png,
254 qtr( "Record" ), record() );
256 snapshotButton = new QPushButton( "S" );
257 snapshotButton->setMaximumSize( QSize( 26, 26 ) );
258 snapshotButton->setIconSize( QSize( 20, 20 ) );
259 advLayout->addWidget( snapshotButton );
260 BUTTON_SET_ACT( snapshotButton, "S", qtr( "Take a snapshot" ), snapshot() );
264 AdvControlsWidget::~AdvControlsWidget()
268 void AdvControlsWidget::enableInput( bool enable )
270 ABButton->setEnabled( enable );
271 recordButton->setEnabled( enable );
273 void AdvControlsWidget::enableVideo( bool enable )
275 snapshotButton->setEnabled( enable );
276 frameButton->setEnabled( enable );
279 void AdvControlsWidget::snapshot()
281 vout_thread_t *p_vout = (vout_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
282 if( p_vout ) vout_Control( p_vout, VOUT_SNAPSHOT );
285 void AdvControlsWidget::frame(){}
286 void AdvControlsWidget::fromAtoB(){}
287 void AdvControlsWidget::record(){}
289 /*****************************
290 * DA Control Widget !
291 *****************************/
292 ControlsWidget::ControlsWidget( intf_thread_t *_p_i, bool b_advControls ) :
293 QFrame( NULL ), p_intf( _p_i )
295 controlLayout = new QGridLayout( this );
296 controlLayout->setSpacing( 0 );
297 setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Minimum );
299 /** The main Slider **/
300 slider = new InputSlider( Qt::Horizontal, NULL );
301 controlLayout->addWidget( slider, 0, 1, 1, 16 );
302 /* Update the position when the IM has changed */
303 CONNECT( THEMIM->getIM(), positionUpdated( float, int, int ),
304 slider, setPosition( float,int, int ) );
305 /* And update the IM, when the position has changed */
306 CONNECT( slider, sliderDragged( float ),
307 THEMIM->getIM(), sliderUpdate( float ) );
309 /** Slower and faster Buttons **/
310 slowerButton = new QPushButton;
311 slowerButton->setFlat( true );
312 slowerButton->setMaximumSize( QSize( 26, 20 ) );
314 BUTTON_SET_ACT( slowerButton, "-", qtr( "Slower" ), slower() );
315 controlLayout->addWidget( slowerButton, 0, 0 );
317 fasterButton = new QPushButton;
318 fasterButton->setFlat( true );
319 fasterButton->setMaximumSize( QSize( 26, 20 ) );
321 BUTTON_SET_ACT( fasterButton, "+", qtr( "Faster" ), faster() );
322 controlLayout->addWidget( fasterButton, 0, 17 );
324 /* advanced Controls handling */
325 b_advancedVisible = b_advControls;
327 advControls = new AdvControlsWidget( p_intf );
328 controlLayout->addWidget( advControls, 1, 3, 2, 4, Qt::AlignBottom );
329 if( !b_advancedVisible ) advControls->hide();
331 /** Disc and Menus handling */
332 discFrame = new QFrame( this );
334 QHBoxLayout *discLayout = new QHBoxLayout( discFrame );
335 discLayout->setSpacing( 0 );
336 discLayout->setMargin( 0 );
338 prevSectionButton = new QPushButton( discFrame );
339 setupSmallButton( prevSectionButton );
340 discLayout->addWidget( prevSectionButton );
342 menuButton = new QPushButton( discFrame );
343 setupSmallButton( menuButton );
344 discLayout->addWidget( menuButton );
346 nextSectionButton = new QPushButton( discFrame );
347 setupSmallButton( nextSectionButton );
348 discLayout->addWidget( nextSectionButton );
350 controlLayout->addWidget( discFrame, 1, 10, 2, 3, Qt::AlignBottom );
352 BUTTON_SET_IMG( prevSectionButton, "", previous.png, "" );
353 BUTTON_SET_IMG( nextSectionButton, "", next.png, "" );
354 BUTTON_SET_IMG( menuButton, "", previous.png, "" );
358 /* Change the navigation button display when the IM navigation changes */
359 CONNECT( THEMIM->getIM(), navigationChanged( int ),
360 this, setNavigation( int ) );
361 /* Changes the IM navigation when triggered on the nav buttons */
362 CONNECT( prevSectionButton, clicked(), THEMIM->getIM(),
364 CONNECT( nextSectionButton, clicked(), THEMIM->getIM(),
366 CONNECT( menuButton, clicked(), THEMIM->getIM(),
371 * Merge with upper menu in a StackLayout
375 QSizePolicy sizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
376 sizePolicy.setHorizontalStretch( 0 );
377 sizePolicy.setVerticalStretch( 0 );
380 playButton = new QPushButton;
381 playButton->setSizePolicy( sizePolicy );
382 playButton->setMaximumSize( QSize( 38, 38 ) );
383 playButton->setMinimumSize( QSize( 45, 45 ) );
384 playButton->setIconSize( QSize( 30, 30 ) );
386 controlLayout->addWidget( playButton, 2, 0, 2, 2 );
388 controlLayout->setColumnMinimumWidth( 2, 20 );
389 controlLayout->setColumnStretch( 2, 0 );
391 /** Prev + Stop + Next Block **/
392 QHBoxLayout *controlButLayout = new QHBoxLayout;
393 controlButLayout->setSpacing( 0 ); /* Don't remove that, will be useful */
396 QPushButton *prevButton = new QPushButton;
397 prevButton->setSizePolicy( sizePolicy );
398 setupSmallButton( prevButton );
400 controlButLayout->addWidget( prevButton );
403 QPushButton *stopButton = new QPushButton;
404 stopButton->setSizePolicy( sizePolicy );
405 setupSmallButton( stopButton );
407 controlButLayout->addWidget( stopButton );
410 QPushButton *nextButton = new QPushButton;
411 nextButton->setSizePolicy( sizePolicy );
412 setupSmallButton( nextButton );
414 controlButLayout->addWidget( nextButton );
416 /* Add this block to the main layout */
417 controlLayout->addLayout( controlButLayout, 3, 3, 1, 3 );
419 BUTTON_SET_ACT_I( playButton, "", play.png, qtr( "Play" ), play() );
420 BUTTON_SET_ACT_I( prevButton, "" , previous.png,
421 qtr( "Previous" ), prev() );
422 BUTTON_SET_ACT_I( nextButton, "", next.png, qtr( "Next" ), next() );
423 BUTTON_SET_ACT_I( stopButton, "", stop.png, qtr( "Stop" ), stop() );
425 controlLayout->setColumnStretch( 8 , 10 );
426 controlLayout->setColumnStretch( 9, 0 );
429 * Other first Line buttons
430 * Might need to be inside a frame to avoid a few resizing pb
433 /** Fullscreen/Visualisation **/
434 fullscreenButton = new QPushButton( "F" );
435 BUTTON_SET_ACT( fullscreenButton, "F", qtr( "Fullscreen" ), fullscreen() );
436 setupSmallButton( fullscreenButton );
437 controlLayout->addWidget( fullscreenButton, 3, 10 );
439 /** Playlist Button **/
440 playlistButton = new QPushButton;
441 setupSmallButton( playlistButton );
442 controlLayout->addWidget( playlistButton, 3, 11 );
443 BUTTON_SET_IMG( playlistButton, "" , playlist.png, qtr( "Show playlist" ) );
445 /** extended Settings **/
446 QPushButton *extSettingsButton = new QPushButton( "F" );
447 BUTTON_SET_ACT( extSettingsButton, "Ex", qtr( "Extended Settings" ),
449 setupSmallButton( extSettingsButton );
450 controlLayout->addWidget( extSettingsButton, 3, 12 );
452 controlLayout->setColumnStretch( 14, 5 );
455 VolumeClickHandler *h = new VolumeClickHandler( p_intf, this );
457 volMuteLabel = new QLabel;
458 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
459 volMuteLabel->setToolTip( qtr( "Mute" ) );
460 volMuteLabel->installEventFilter( h );
463 * Change this slider to use a nice Amarok-like one
466 * THis percerntage thing has to be handled correctly
467 * This has to match to the OSD
469 volumeSlider = new QSlider;
470 volumeSlider->setSizePolicy( sizePolicy );
471 volumeSlider->setMaximumSize( QSize( 80, 200 ) );
472 volumeSlider->setOrientation( Qt::Horizontal );
474 volumeSlider->setMaximum( VOLUME_MAX );
475 volumeSlider->setFocusPolicy( Qt::NoFocus );
476 controlLayout->addWidget( volMuteLabel, 3, 15 );
477 controlLayout->addWidget( volumeSlider, 3, 16, 1, 2 );
479 /* Volume control connection */
480 CONNECT( volumeSlider, valueChanged( int ), this, updateVolume( int ) );
481 msg_Dbg( p_intf, "size: %i - %i", size().height(), size().width() );
483 ControlsWidget::~ControlsWidget()
486 void ControlsWidget::stop()
491 void ControlsWidget::play()
493 if( THEPL->current.i_size == 0 )
495 /* The playlist is empty, open a file requester */
496 THEDP->openFileDialog();
500 THEMIM->togglePlayPause();
503 void ControlsWidget::prev()
508 void ControlsWidget::next()
513 void ControlsWidget::setNavigation( int navigation )
515 #define HELP_MENU N_( "Menu" )
516 #define HELP_PCH N_( "Previous chapter" )
517 #define HELP_NCH N_( "Next chapter" )
518 #define HELP_PTR N_( "Previous track" )
519 #define HELP_NTR N_( "Next track" )
521 // 1 = chapter, 2 = title, 0 = no
522 if( navigation == 0 )
525 } else if( navigation == 1 ) {
526 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
527 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
531 prevSectionButton->setToolTip( qfu( HELP_PCH ) );
532 nextSectionButton->setToolTip( qfu( HELP_NCH ) );
538 static bool b_my_volume;
539 void ControlsWidget::updateVolume( int i_sliderVolume )
543 int i_res = i_sliderVolume * (AOUT_VOLUME_MAX / 2) / VOLUME_MAX;
544 aout_VolumeSet( p_intf, i_res );
546 if( i_sliderVolume == 0 )
547 volMuteLabel->setPixmap( QPixmap(":/pixmaps/volume-muted.png" ) );
548 else if( i_sliderVolume < VOLUME_MAX / 2 )
549 volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-low.png" ) );
550 else volMuteLabel->setPixmap( QPixmap( ":/pixmaps/volume-high.png" ) );
553 void ControlsWidget::updateOnTimer()
556 audio_volume_t i_volume;
557 aout_VolumeGet( p_intf, &i_volume );
558 i_volume = ( i_volume * VOLUME_MAX )/ (AOUT_VOLUME_MAX/2) ;
559 int i_gauge = volumeSlider->value();
561 if( i_volume - i_gauge > 1 || i_gauge - i_volume > 1 )
564 volumeSlider->setValue( i_volume );
568 /* Activate the interface buttons according to the presence of the input */
569 enableInput( THEMIM->getIM()->hasInput() );
570 //enableVideo( THEMIM->getIM()->hasVideo() );
574 void ControlsWidget::setStatus( int status )
576 if( status == PLAYING_S ) // Playing
577 playButton->setIcon( QIcon( ":/pixmaps/pause.png" ) );
579 playButton->setIcon( QIcon( ":/pixmaps/play.png" ) );
584 * This functions toggle the fullscreen mode
585 * If there is no video, it should first activate Visualisations...
586 * This has also to be fixed in enableVideo()
588 void ControlsWidget::fullscreen()
590 vout_thread_t *p_vout = (vout_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT, FIND_ANYWHERE );
593 var_SetBool( p_vout, "fullscreen", !var_GetBool( p_vout, "fullscreen" ) );
594 vlc_object_release( p_vout );
598 void ControlsWidget::extSettings()
600 THEDP->extendedDialog();
603 void ControlsWidget::slower()
605 THEMIM->getIM()->slower();
608 void ControlsWidget::faster()
610 THEMIM->getIM()->faster();
613 void ControlsWidget::enableInput( bool enable )
615 slowerButton->setEnabled( enable );
616 slider->setEnabled( enable );
617 fasterButton->setEnabled( enable );
619 /* Advanced Buttons too */
620 advControls->enableInput( enable );
623 void ControlsWidget::enableVideo( bool enable )
625 // TODO Later make the fullscreenButton toggle Visualisation and so on.
626 fullscreenButton->setEnabled( enable );
628 /* Advanced Buttons too */
629 advControls->enableVideo( enable );
632 void ControlsWidget::toggleAdvanced()
634 if( !VISIBLE( advControls ) )
637 b_advancedVisible = true;
642 b_advancedVisible = false;
644 //FIXME connect this one :D
645 emit advancedControlsToggled( b_advancedVisible ); // doComponentsUpdate();
648 /**********************************************************************
649 * Playlist Widget. The embedded playlist
650 **********************************************************************/
651 #include "components/playlist/panels.hpp"
652 #include "components/playlist/selector.hpp"
654 PlaylistWidget::PlaylistWidget( intf_thread_t *_p_i ) :
657 /* Left Part and design */
658 QWidget *leftW = new QWidget( this );
659 QVBoxLayout *left = new QVBoxLayout( leftW );
661 /* Source Selector */
662 selector = new PLSelector( this, p_intf, THEPL );
663 left->addWidget( selector );
666 art = new QLabel( "" );
667 art->setMinimumHeight( 128 );
668 art->setMinimumWidth( 128 );
669 art->setMaximumHeight( 128 );
670 art->setMaximumWidth( 128 );
671 art->setScaledContents( true );
672 art->setPixmap( QPixmap( ":/noart.png" ) );
673 left->addWidget( art );
675 /* Initialisation of the playlist */
676 playlist_item_t *p_root = playlist_GetPreferredNode( THEPL,
677 THEPL->p_local_category );
679 rightPanel = qobject_cast<PLPanel *>( new StandardPLPanel( this,
680 p_intf, THEPL, p_root ) );
683 CONNECT( selector, activated( int ), rightPanel, setRoot( int ) );
685 CONNECT( qobject_cast<StandardPLPanel *>( rightPanel )->model,
686 artSet( QString ) , this, setArt( QString ) );
687 /* Forward removal requests from the selector to the main panel */
688 CONNECT( qobject_cast<PLSelector *>( selector )->model,
690 qobject_cast<StandardPLPanel *>( rightPanel ), removeItem( int ) );
692 connect( selector, SIGNAL( activated( int ) ),
693 this, SIGNAL( rootChanged( int ) ) );
694 emit rootChanged( p_root->i_id );
696 /* Add the two sides of the QSplitter */
698 addWidget( rightPanel );
700 leftW->setMaximumWidth( 250 );
701 setCollapsible( 1, false );
704 sizeList << 180 << 520 ;
705 setSizes( sizeList );
708 void PlaylistWidget::setArt( QString url )
711 art->setPixmap( QPixmap( ":/noart.png" ) );
712 else if( prevArt != url )
714 art->setPixmap( QPixmap( url ) );
720 PlaylistWidget::~PlaylistWidget()
724 /**********************************************************************
725 * Speed control widget
726 **********************************************************************/
727 SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i ) :
728 QFrame( NULL ), p_intf( _p_i )
730 QSizePolicy sizePolicy( QSizePolicy::Maximum, QSizePolicy::Fixed );
731 sizePolicy.setHorizontalStretch( 0 );
732 sizePolicy.setVerticalStretch( 0 );
734 speedSlider = new QSlider;
735 speedSlider->setSizePolicy( sizePolicy );
736 speedSlider->setMaximumSize( QSize( 80, 200 ) );
737 speedSlider->setOrientation( Qt::Vertical );
738 speedSlider->setTickPosition( QSlider::TicksRight );
740 speedSlider->setRange( -100, 100 );
741 speedSlider->setSingleStep( 10 );
742 speedSlider->setPageStep( 20 );
743 speedSlider->setTickInterval( 20 );
745 CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );
747 normalSpeedButton = new QPushButton( "N" );
748 normalSpeedButton->setMaximumSize( QSize( 26, 20 ) );
749 normalSpeedButton->setFlat( true );
750 normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );
752 CONNECT( normalSpeedButton, clicked(), this, resetRate() );
754 QVBoxLayout *speedControlLayout = new QVBoxLayout;
755 speedControlLayout->addWidget(speedSlider);
756 speedControlLayout->addWidget(normalSpeedButton);
757 setLayout(speedControlLayout);
760 SpeedControlWidget::~SpeedControlWidget()
764 #define RATE_SLIDER_MAXIMUM 3.0
765 #define RATE_SLIDER_MINIMUM 0.3
766 #define RATE_SLIDER_LENGTH 100.0
768 void SpeedControlWidget::updateControls( int rate )
770 if( speedSlider->isSliderDown() )
772 //We don't want to change anything if the user is using the slider
777 double speed = INPUT_RATE_DEFAULT / (double)rate;
779 if( rate >= INPUT_RATE_DEFAULT )
781 if( speed < RATE_SLIDER_MINIMUM )
783 sliderValue = speedSlider->minimum();
787 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
788 / ( 1.0 - RATE_SLIDER_MAXIMUM ) );
793 if( speed > RATE_SLIDER_MAXIMUM )
795 sliderValue = speedSlider->maximum();
799 sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
800 / ( RATE_SLIDER_MAXIMUM - 1.0 ) );
804 //Block signals to avoid feedback loop
805 speedSlider->blockSignals( true );
806 speedSlider->setValue( sliderValue );
807 speedSlider->blockSignals( false );
810 void SpeedControlWidget::updateRate( int sliderValue )
814 if( sliderValue < 0.0 )
816 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
817 ( sliderValue * ( 1.0 - RATE_SLIDER_MINIMUM ) + RATE_SLIDER_LENGTH ) ;
821 rate = INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
822 ( sliderValue * ( RATE_SLIDER_MAXIMUM - 1.0 ) + RATE_SLIDER_LENGTH );
825 THEMIM->getIM()->setRate(rate);
828 void SpeedControlWidget::resetRate()
830 THEMIM->getIM()->setRate(INPUT_RATE_DEFAULT);