modules/gui/qt4/components/controller_widget.cpp

   1 /*****************************************************************************
   2  * Controller_widget.cpp : Controller Widget for the controllers
   3  ****************************************************************************
   4  * Copyright (C) 2006-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Jean-Baptiste Kempf <jb@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
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include "controller_widget.hpp"
  29 #include "controller.hpp"
  30
  31 #include "input_manager.hpp"         /* Get notification of Volume Change */
  32 #include "util/input_slider.hpp"     /* SoundSlider */
  33
  34 #include <vlc_aout.h>                /* Volume functions */
  35
  36 #include <QLabel>
  37 #include <QHBoxLayout>
  38 #include <QSpinBox>
  39 #include <QMenu>
  40 #include <QWidgetAction>
  41 #include <QMouseEvent>
  42
  43 SoundWidget::SoundWidget( QWidget *_parent, intf_thread_t * _p_intf,
  44                           bool b_shiny, bool b_special )
  45                          : QWidget( _parent ), p_intf( _p_intf),
  46                            b_my_volume( false )
  47 {
  48     /* We need a layout for this widget */
  49     QHBoxLayout *layout = new QHBoxLayout( this );
  50     layout->setSpacing( 0 ); layout->setMargin( 0 );
  51
  52     /* We need a Label for the pix */
  53     volMuteLabel = new QLabel;
  54     volMuteLabel->setPixmap( QPixmap( ":/toolbar/volume-medium" ) );
  55
  56     /* We might need a subLayout too */
  57     QVBoxLayout *subLayout;
  58
  59     volMuteLabel->installEventFilter( this );
  60
  61     /* Normal View, click on icon mutes */
  62     if( !b_special )
  63     {
  64         volumeMenu = NULL; subLayout = NULL;
  65         volumeControlWidget = NULL;
  66     }
  67     else
  68     {
  69         /* Special view, click on button shows the slider */
  70         b_shiny = false;
  71
  72         volumeControlWidget = new QFrame;
  73         subLayout = new QVBoxLayout( volumeControlWidget );
  74         subLayout->setLayoutMargins( 4, 4, 4, 4, 4 );
  75         volumeMenu = new QMenu( this );
  76
  77         QWidgetAction *widgetAction = new QWidgetAction( volumeControlWidget );
  78         widgetAction->setDefaultWidget( volumeControlWidget );
  79         volumeMenu->addAction( widgetAction );
  80     }
  81
  82     /* And add the label */
  83     layout->addWidget( volMuteLabel );
  84
  85     /* Slider creation: shiny or clean */
  86     if( b_shiny )
  87     {
  88         volumeSlider = new SoundSlider( this,
  89             config_GetInt( p_intf, "volume-step" ),
  90             config_GetInt( p_intf, "qt-volume-complete" ),
  91             config_GetPsz( p_intf, "qt-slider-colours" ) );
  92     }
  93     else
  94     {
  95         volumeSlider = new QSlider( NULL );
  96         volumeSlider->setOrientation( b_special ? Qt::Vertical
  97                                                 : Qt::Horizontal );
  98         volumeSlider->setMaximum( config_GetInt( p_intf, "qt-volume-complete" )
  99                                   ? 400 : 200 );
 100     }
 101     if( volumeSlider->orientation() ==  Qt::Horizontal )
 102     {
 103         volumeSlider->setMaximumSize( QSize( 200, 40 ) );
 104         volumeSlider->setMinimumSize( QSize( 85, 30 ) );
 105     }
 106
 107     volumeSlider->setFocusPolicy( Qt::NoFocus );
 108     if( b_special )
 109         subLayout->addWidget( volumeSlider );
 110     else
 111         layout->addWidget( volumeSlider, 0, Qt::AlignBottom  );
 112
 113     /* Set the volume from the config */
 114     volumeSlider->setValue( qRound( ( (qreal)config_GetInt( p_intf, "volume" ) ) *
 115                               VOLUME_MAX / (AOUT_VOLUME_MAX/2) ) );
 116
 117     /* Force the update at build time in order to have a muted icon if needed */
 118     updateVolume( volumeSlider->value() );
 119
 120     /* Volume control connection */
 121     CONNECT( volumeSlider, valueChanged( int ), this, updateVolume( int ) );
 122     CONNECT( THEMIM, volumeChanged( void ), this, updateVolume( void ) );
 123 }
 124
 125 SoundWidget::~SoundWidget()
 126 {
 127     delete volumeSlider;
 128     delete volumeControlWidget;
 129 }
 130
 131 void SoundWidget::updateVolume( int i_sliderVolume )
 132 {
 133     if( !b_my_volume )
 134     {
 135         int i_res = i_sliderVolume  * (AOUT_VOLUME_MAX / 2) / VOLUME_MAX;
 136         playlist_t *p_playlist = pl_Hold( p_intf );
 137         aout_VolumeSet( p_playlist, i_res );
 138         pl_Release( p_intf );
 139     }
 140     if( i_sliderVolume == 0 )
 141     {
 142         volMuteLabel->setPixmap( QPixmap(":/toolbar/volume-muted" ) );
 143         volMuteLabel->setToolTip( qtr( "Unmute" ) );
 144         return;
 145     }
 146
 147     if( i_sliderVolume < VOLUME_MAX / 3 )
 148         volMuteLabel->setPixmap( QPixmap( ":/toolbar/volume-low" ) );
 149     else if( i_sliderVolume > (VOLUME_MAX * 2 / 3 ) )
 150         volMuteLabel->setPixmap( QPixmap( ":/toolbar/volume-high" ) );
 151     else volMuteLabel->setPixmap( QPixmap( ":/toolbar/volume-medium" ) );
 152     volMuteLabel->setToolTip( qtr( "Mute" ) );
 153 }
 154
 155 void SoundWidget::updateVolume()
 156 {
 157     /* Audio part */
 158     audio_volume_t i_volume;
 159     playlist_t *p_playlist = pl_Hold( p_intf );
 160
 161     aout_VolumeGet( p_playlist, &i_volume );
 162     pl_Release( p_intf );
 163     i_volume = ( ( i_volume + 1 ) *  VOLUME_MAX )/ (AOUT_VOLUME_MAX/2);
 164     int i_gauge = volumeSlider->value();
 165     b_my_volume = false;
 166     if( i_volume - i_gauge > 1 || i_gauge - i_volume > 1 )
 167     {
 168         b_my_volume = true;
 169         volumeSlider->setValue( i_volume );
 170         b_my_volume = false;
 171     }
 172 }
 173
 174 void SoundWidget::showVolumeMenu( QPoint pos )
 175 {
 176     volumeMenu->exec( QCursor::pos() - pos - QPoint( 0, volumeMenu->height()/2 )
 177                           + QPoint( width(), height() /2) );
 178 }
 179
 180 bool SoundWidget::eventFilter( QObject *obj, QEvent *e )
 181 {
 182     VLC_UNUSED( obj );
 183     if (e->type() == QEvent::MouseButtonPress  )
 184     {
 185         if( volumeSlider->orientation() ==  Qt::Vertical )
 186         {
 187             QMouseEvent *event = static_cast<QMouseEvent*>(e);
 188             showVolumeMenu( event->pos() );
 189         }
 190         else
 191         {
 192             playlist_t *p_playlist = pl_Hold( p_intf );
 193
 194             aout_ToggleMute( p_playlist, NULL );
 195             pl_Release( p_intf );
 196         }
 197         e->accept();
 198         return true;
 199     }
 200     else
 201     {
 202         e->ignore();
 203         return false;
 204     }
 205 }
 206
 207 /**
 208  * Play Button
 209  **/
 210 void PlayButton::updateButton( bool b_playing )
 211 {
 212     setIcon( b_playing ? QIcon( ":/toolbar/pause_b" ) : QIcon( ":/toolbar/play_b" ) );
 213     setToolTip( b_playing ? qtr( "Pause the playback" )
 214                           : qtr( I_PLAY_TOOLTIP ) );
 215 }
 216
 217 void AtoB_Button::setIcons( bool timeA, bool timeB )
 218 {
 219     if( !timeA && !timeB)
 220     {
 221         setIcon( QIcon( ":/toolbar/atob_nob" ) );
 222         setToolTip( qtr( "Loop from point A to point B continuously\n"
 223                          "Click to set point A" ) );
 224     }
 225     else if( timeA && !timeB )
 226     {
 227         setIcon( QIcon( ":/toolbar/atob_noa" ) );
 228         setToolTip( qtr( "Click to set point B" ) );
 229     }
 230     else if( timeA && timeB )
 231     {
 232         setIcon( QIcon( ":/toolbar/atob" ) );
 233         setToolTip( qtr( "Stop the A to B loop" ) );
 234     }
 235 }
 236
 237