]> git.sesse.net Git - vlc/blobdiff - modules/gui/qt4/components/interface_widgets.cpp
Merge branch 'master' of git@git.videolan.org:vlc
[vlc] / modules / gui / qt4 / components / interface_widgets.cpp
index 1e0d3494ad412d9dfa14b6381bbfcae0bee21aa2..0cd05e6ccc59752e9b958b6a2deb64b94ab1b9bb 100644 (file)
@@ -28,6 +28,8 @@
 # include "config.h"
 #endif
 
+#include <vlc_vout.h>
+
 #include "dialogs_provider.hpp"
 #include "components/interface_widgets.hpp"
 #include "main_interface.hpp"
@@ -35,7 +37,6 @@
 #include "menus.hpp"
 #include "util/input_slider.hpp"
 #include "util/customwidgets.hpp"
-#include <vlc_vout.h>
 
 #include <QLabel>
 #include <QSpacerItem>
 #include <QPalette>
 #include <QResizeEvent>
 #include <QDate>
+
 #ifdef Q_WS_X11
 # include <X11/Xlib.h>
 # include <qx11info_x11.h>
 #endif
 
+#include <math.h>
+
 /**********************************************************************
  * Video Widget. A simple frame on which video is drawn
  * This class handles resize issues
@@ -60,8 +64,7 @@
 VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
 {
     /* Init */
-    vlc_mutex_init( &lock );
-    p_vout = NULL;
+    i_vout = 0;
     hide(); setMinimumSize( 16, 16 );
     videoSize.rwidth() = -1;
     videoSize.rheight() = -1;
@@ -84,8 +87,6 @@ VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
     connect( this, SIGNAL(askVideoWidgetToShow( unsigned int, unsigned int)),
              this, SLOT(SetSizing(unsigned int, unsigned int )) );
 #endif
-
-
 }
 
 void VideoWidget::paintEvent(QPaintEvent *ev)
@@ -98,7 +99,9 @@ void VideoWidget::paintEvent(QPaintEvent *ev)
 
 VideoWidget::~VideoWidget()
 {
-    vlc_mutex_lock( &lock );
+    vout_thread_t *p_vout = i_vout
+        ? (vout_thread_t *)vlc_object_get( i_vout ) : NULL;
+
     if( p_vout )
     {
         if( !p_intf->psz_switch_intf )
@@ -111,25 +114,24 @@ VideoWidget::~VideoWidget()
             if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
                 vout_Control( p_vout, VOUT_CLOSE );
         }
+        vlc_object_release( p_vout );
     }
-    vlc_mutex_unlock( &lock );
-    vlc_mutex_destroy( &lock );
 }
 
 /**
  * Request the video to avoid the conflicts
  **/
 void *VideoWidget::request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
-                           unsigned int *pi_width, unsigned int *pi_height )
+                            unsigned int *pi_width, unsigned int *pi_height )
 {
     msg_Dbg( p_intf, "Video was requested %i, %i", *pi_x, *pi_y );
     emit askVideoWidgetToShow( *pi_width, *pi_height );
-    if( p_vout )
+    if( i_vout )
     {
         msg_Dbg( p_intf, "embedded video already in use" );
         return NULL;
     }
-    p_vout = p_nvout;
+    i_vout = p_nvout->i_object_id;
     msg_Dbg( p_intf, "embedded video ready (handle %p)", winId() );
     return ( void* )winId();
 }
@@ -148,8 +150,8 @@ void VideoWidget::SetSizing( unsigned int w, unsigned int h )
 
 void VideoWidget::release( void *p_win )
 {
-    msg_Dbg( p_intf, "Video is non needed anymore" );
-    p_vout = NULL;
+    msg_Dbg( p_intf, "Video is not needed anymore" );
+    i_vout = 0;
     videoSize.rwidth() = 0;
     videoSize.rheight() = 0;
     hide();
@@ -173,7 +175,7 @@ BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i )
                  :QWidget( NULL ), p_intf( _p_i )
 {
     /* We should use that one to take the more size it can */
-//    setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
+    setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding);
 
     /* A dark background */
     setAutoFillBackground( true );
@@ -203,8 +205,7 @@ BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i )
 }
 
 BackgroundWidget::~BackgroundWidget()
-{
-}
+{}
 
 void BackgroundWidget::resizeEvent( QResizeEvent * event )
 {
@@ -250,7 +251,7 @@ VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
 
     layout->addItem( new QSpacerItem( 40,20,
                               QSizePolicy::Expanding, QSizePolicy::Minimum ) );
-    layout->addWidget( new QLabel( qtr( "Current visualization:" ) ) );
+    layout->addWidget( new QLabel( qtr( "Current visualization" ) ) );
 
     current = new QLabel( qtr( "None" ) );
     layout->addWidget( current );
@@ -263,8 +264,7 @@ VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
 }
 
 VisualSelector::~VisualSelector()
-{
-}
+{}
 
 void VisualSelector::prev()
 {
@@ -316,7 +316,7 @@ AdvControlsWidget::AdvControlsWidget( intf_thread_t *_p_i ) :
     frameButton->setMaximumSize( QSize( 26, 26 ) );
     frameButton->setIconSize( QSize( 20, 20 ) );
     advLayout->addWidget( frameButton );
-    BUTTON_SET_ACT( frameButton, "Fr", qtr( "Frame by Frame" ), frame() );
+    BUTTON_SET_ACT( frameButton, "Fr", qtr( "Frame by frame" ), frame() );
 #endif
 
     recordButton = new QPushButton( "R" );
@@ -539,7 +539,7 @@ ControlsWidget::ControlsWidget( intf_thread_t *_p_i,
     CONNECT( THEMIM->getIM(), toggleTelexTransparency(),
               this, toggleTeletextTransparency() );
     CONNECT( THEMIM->getIM(), teletextEnabled( bool ),
-             telexFrame, setVisible( bool ) );
+             this, enableTeletext( bool ) );
 
     /** Play Buttons **/
     QSizePolicy sizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
@@ -616,7 +616,7 @@ ControlsWidget::ControlsWidget( intf_thread_t *_p_i,
 
     /** extended Settings **/
     extSettingsButton = new QPushButton;
-    BUTTON_SET_ACT( extSettingsButton, "Ex", qtr( "Extended Settings" ),
+    BUTTON_SET_ACT( extSettingsButton, "Ex", qtr( "Extended settings" ),
             extSettings() );
     setupSmallButton( extSettingsButton );
     controlLayout->addWidget( extSettingsButton, 3, 12, Qt::AlignBottom );
@@ -685,6 +685,17 @@ void ControlsWidget::toggleTeletext()
     }
 }
 
+void ControlsWidget::enableTeletext( bool b_enable )
+{
+    telexFrame->setVisible( b_enable );
+    bool b_on = THEMIM->teletextState();
+
+    telexOn->setChecked( b_on );
+    telexTransparent->setEnabled( b_on );
+    telexPage->setEnabled( b_on );
+    b_telexEnabled = b_on;
+}
+
 void ControlsWidget::toggleTeletextTransparency()
 {
     if( b_telexTransparent )
@@ -877,8 +888,9 @@ void ControlsWidget::toggleAdvanced()
 FullscreenControllerWidget::FullscreenControllerWidget( intf_thread_t *_p_i,
         MainInterface *_p_mi, bool b_advControls, bool b_shiny )
         : ControlsWidget( _p_i, _p_mi, b_advControls, b_shiny, true ),
-        i_lastPosX( -1 ), i_lastPosY( -1 ), i_hideTimeout( 1 ),
-        b_mouseIsOver( false ), b_isFullscreen( false )
+          i_mouse_last_x( -1 ), i_mouse_last_y( -1 ), b_mouse_over(false),
+          b_slow_hide_begin(false), i_slow_hide_timeout(1),
+          b_fullscreen( false ), i_hide_timeout( 1 )
 {
     setWindowFlags( Qt::ToolTip );
 
@@ -912,7 +924,7 @@ FullscreenControllerWidget::FullscreenControllerWidget( intf_thread_t *_p_i,
 
     /* hiding timer */
     p_hideTimer = new QTimer( this );
-    CONNECT( p_hideTimer, timeout(), this, hideFSControllerWidget() );
+    CONNECT( p_hideTimer, timeout(), this, hideFSC() );
     p_hideTimer->setSingleShot( true );
 
     /* slow hiding timer */
@@ -929,15 +941,42 @@ FullscreenControllerWidget::FullscreenControllerWidget( intf_thread_t *_p_i,
     move( p_desktop->width() / 2 - width() / 2,
           p_desktop->height() - height() );
 
-    #ifdef WIN32TRICK
+#ifdef WIN32TRICK
     setWindowOpacity( 0.0 );
     fscHidden = true;
     show();
-    #endif
+#endif
+
+    vlc_mutex_init_recursive( &lock );
 }
 
 FullscreenControllerWidget::~FullscreenControllerWidget()
 {
+    vlc_mutex_destroy( &lock );
+}
+
+/**
+ * Show fullscreen controller
+ */
+void FullscreenControllerWidget::showFSC()
+{
+#ifdef WIN32TRICK
+    // after quiting and going to fs, we need to call show()
+    if( isHidden() )
+        show();
+
+    if( fscHidden )
+    {
+        fscHidden = false;
+        setWindowOpacity( 1.0 );
+    }
+#else
+    show();
+#endif
+
+#if HAVE_TRANSPARENCY
+    setWindowOpacity( DEFAULT_OPACITY );
+#endif
 }
 
 /**
@@ -945,14 +984,32 @@ FullscreenControllerWidget::~FullscreenControllerWidget()
  * FIXME: under windows it have to be done by moving out of screen
  *        because hide() doesnt work
  */
-void FullscreenControllerWidget::hideFSControllerWidget()
+void FullscreenControllerWidget::hideFSC()
 {
-    #ifdef WIN32TRICK
+#ifdef WIN32TRICK
     fscHidden = true;
     setWindowOpacity( 0.0 );    // simulate hidding
-    #else
+#else
     hide();
-    #endif
+#endif
+}
+
+/**
+ * Plane to hide fullscreen controller
+ */
+void FullscreenControllerWidget::planHideFSC()
+{
+    vlc_mutex_lock( &lock );
+    int i_timeout = i_hide_timeout;
+    vlc_mutex_unlock( &lock );
+
+    p_hideTimer->start( i_timeout );
+
+#if HAVE_TRANSPARENCY
+    b_slow_hide_begin = true;
+    i_slow_hide_timeout = i_timeout;
+    p_slowHideTimer->start( i_slow_hide_timeout / 2 );
+#endif
 }
 
 /**
@@ -963,16 +1020,14 @@ void FullscreenControllerWidget::hideFSControllerWidget()
 void FullscreenControllerWidget::slowHideFSC()
 {
 #if HAVE_TRANSPARENCY
-    static bool first_call = true;
-
-    if ( first_call )
+    if( b_slow_hide_begin )
     {
-        first_call = false;
+        b_slow_hide_begin = false;
 
         p_slowHideTimer->stop();
         /* the last part of time divided to 100 pieces */
-        p_slowHideTimer->start(
-            (int) ( i_hideTimeout / 2 / ( windowOpacity() * 100 ) ) );
+        p_slowHideTimer->start( (int)( i_slow_hide_timeout / 2 / ( windowOpacity() * 100 ) ) );
+
     }
     else
     {
@@ -987,66 +1042,37 @@ void FullscreenControllerWidget::slowHideFSC()
              setWindowOpacity( windowOpacity() - 0.02 );
          }
 
-         if ( windowOpacity() == 0.0 )
-         {
-             first_call = true;
+         if ( windowOpacity() <= 0.0 )
              p_slowHideTimer->stop();
-         }
     }
 #endif
 }
 
-/**
- * Get state of visibility of FS controller on screen
- * On windows control if it is on hidden position
- */
-bool FullscreenControllerWidget::isFSCHidden()
-{
-    #ifdef WIN32TRICK
-    return fscHidden;
-    #endif
-
-    return isHidden();
-}
-
 /**
  * event handling
  * events: show, hide, start timer for hidding
  */
 void FullscreenControllerWidget::customEvent( QEvent *event )
 {
-    int type = event->type();
+    bool b_fs;
 
-    if ( type == FullscreenControlShow_Type && b_isFullscreen )
+    switch( event->type() )
     {
-        #ifdef WIN32TRICK
-        // after quiting and going to fs, we need to call show()
-        if ( isHidden() )
-            show();
-
-        if ( fscHidden )
-        {
-            fscHidden = false;
-            setWindowOpacity( 1.0 );
-        }
-        #else
-        show();
-        #endif
-
-#if HAVE_TRANSPARENCY
-        setWindowOpacity( DEFAULT_OPACITY );
-#endif
-    }
-    else if ( type == FullscreenControlHide_Type )
-    {
-        hideFSControllerWidget();
-    }
-    else if ( type == FullscreenControlPlanHide_Type && !b_mouseIsOver )
-    {
-        p_hideTimer->start( i_hideTimeout );
-#if HAVE_TRANSPARENCY
-        p_slowHideTimer->start( i_hideTimeout / 2 );
-#endif
+    case FullscreenControlShow_Type:
+        vlc_mutex_lock( &lock );
+        b_fs = b_fullscreen;
+        vlc_mutex_unlock( &lock );
+
+        if( b_fs )  // FIXME I am not sure about that one
+            showFSC();
+        break;
+    case FullscreenControlHide_Type:
+        hideFSC();
+        break;
+    case FullscreenControlPlanHide_Type:
+        if( !b_mouse_over ) // Only if the mouse is not over FSC
+            planHideFSC();
+        break;
     }
 }
 
@@ -1058,13 +1084,13 @@ void FullscreenControllerWidget::mouseMoveEvent( QMouseEvent *event )
 {
     if ( event->buttons() == Qt::LeftButton )
     {
-        int i_moveX = event->globalX() - i_lastPosX;
-        int i_moveY = event->globalY() - i_lastPosY;
+        int i_moveX = event->globalX() - i_mouse_last_x;
+        int i_moveY = event->globalY() - i_mouse_last_y;
 
         move( x() + i_moveX, y() + i_moveY );
 
-        i_lastPosX = event->globalX();
-        i_lastPosY = event->globalY();
+        i_mouse_last_x = event->globalX();
+        i_mouse_last_y = event->globalY();
     }
 }
 
@@ -1074,8 +1100,8 @@ void FullscreenControllerWidget::mouseMoveEvent( QMouseEvent *event )
  */
 void FullscreenControllerWidget::mousePressEvent( QMouseEvent *event )
 {
-    i_lastPosX = event->globalX();
-    i_lastPosY = event->globalY();
+    i_mouse_last_x = event->globalX();
+    i_mouse_last_y = event->globalY();
 }
 
 /**
@@ -1083,11 +1109,12 @@ void FullscreenControllerWidget::mousePressEvent( QMouseEvent *event )
  */
 void FullscreenControllerWidget::enterEvent( QEvent *event )
 {
+    b_mouse_over = true;
+
     p_hideTimer->stop();
 #if HAVE_TRANSPARENCY
     p_slowHideTimer->stop();
 #endif
-    b_mouseIsOver = true;
 }
 
 /**
@@ -1095,11 +1122,9 @@ void FullscreenControllerWidget::enterEvent( QEvent *event )
  */
 void FullscreenControllerWidget::leaveEvent( QEvent *event )
 {
-    p_hideTimer->start( i_hideTimeout );
-#if HAVE_TRANSPARENCY
-    p_slowHideTimer->start( i_hideTimeout / 2 );
-#endif
-    b_mouseIsOver = false;
+    planHideFSC();
+
+    b_mouse_over = false;
 }
 
 /**
@@ -1119,80 +1144,85 @@ void FullscreenControllerWidget::keyPressEvent( QKeyEvent *event )
         event->ignore();
 }
 
-/**
- * It is called when video start
- */
-void FullscreenControllerWidget::regFullscreenCallback( vout_thread_t *p_vout )
+/* */
+static int FullscreenControllerWidgetFullscreenChanged( vlc_object_t *vlc_object, const char *variable,
+                                                        vlc_value_t old_val, vlc_value_t new_val,
+                                                        void *data )
 {
-    if ( p_vout )
-    {
-        var_AddCallback( p_vout, "fullscreen", regMouseMoveCallback, this );
-    }
+    vout_thread_t *p_vout = (vout_thread_t *) vlc_object;
+    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *)data;
+
+    p_fs->fullscreenChanged( p_vout, new_val.b_bool, var_GetInteger( p_vout, "mouse-hide-timeout" ) );
+
+    return VLC_SUCCESS;
+}
+/* */
+static int FullscreenControllerWidgetMouseMoved( vlc_object_t *vlc_object, const char *variable,
+                                                 vlc_value_t old_val, vlc_value_t new_val,
+                                                 void *data )
+{
+    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *)data;
+
+    /* Show event */
+    IMEvent *eShow = new IMEvent( FullscreenControlShow_Type, 0 );
+    QApplication::postEvent( p_fs, static_cast<QEvent *>(eShow) );
+
+    /* Plan hide event */
+    IMEvent *eHide = new IMEvent( FullscreenControlPlanHide_Type, 0 );
+    QApplication::postEvent( p_fs, static_cast<QEvent *>(eHide) );
+
+    return VLC_SUCCESS;
 }
 
+
 /**
- * It is called after turn off video, because p_vout is NULL now
- * we cannt delete callback, just hide if FScontroller is visible
+ * It is called when video start
  */
-void FullscreenControllerWidget::unregFullscreenCallback()
+void FullscreenControllerWidget::attachVout( vout_thread_t *p_vout )
 {
-    if ( isVisible() )
-        hide();
-}
+    assert( p_vout );
 
+    vlc_mutex_lock( &lock );
+    var_AddCallback( p_vout, "fullscreen", FullscreenControllerWidgetFullscreenChanged, this ); /* I miss a add and fire */
+    fullscreenChanged( p_vout, var_GetBool( p_vout, "fullscreen" ), var_GetInteger( p_vout, "mouse-hide-timeout" ) );
+    vlc_mutex_unlock( &lock );
+}
 /**
- * Register and unregister callback for mouse moving
+ * It is called after turn off video.
  */
-static int regMouseMoveCallback( vlc_object_t *vlc_object, const char *variable,
-                                 vlc_value_t old_val, vlc_value_t new_val,
-                                 void *data )
+void FullscreenControllerWidget::detachVout( vout_thread_t *p_vout )
 {
-    vout_thread_t *p_vout = (vout_thread_t *) vlc_object;
-
-    static bool b_registered = false;
-    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *) data;
+    assert( p_vout );
 
-    if ( var_GetBool( p_vout, "fullscreen" ) && !b_registered )
-    {
-        p_fs->setHideTimeout( var_GetInteger( p_vout, "mouse-hide-timeout" ) );
-        p_fs->setIsFullscreen( true );
-        var_AddCallback( p_vout, "mouse-moved",
-                        showFullscreenControllCallback, (void *) p_fs );
-        b_registered = true;
-    }
-
-    if ( !var_GetBool( p_vout, "fullscreen" ) && b_registered )
-    {
-        p_fs->setIsFullscreen( false );
-        p_fs->hide();
-        var_DelCallback( p_vout, "mouse-moved",
-                        showFullscreenControllCallback, (void *) p_fs );
-        b_registered = false;
-    }
-
-    return VLC_SUCCESS;
+    var_DelCallback( p_vout, "fullscreen", FullscreenControllerWidgetFullscreenChanged, this );
+    vlc_mutex_lock( &lock );
+    fullscreenChanged( p_vout, false, 0 );
+    vlc_mutex_unlock( &lock );
 }
 
 /**
- * Show fullscreen controller after mouse move
- * after show immediately plan hide event
+ * Register and unregister callback for mouse moving
  */
-static int showFullscreenControllCallback( vlc_object_t *vlc_object, const char *variable,
-                                           vlc_value_t old_val, vlc_value_t new_val,
-                                           void *data )
+void FullscreenControllerWidget::fullscreenChanged( vout_thread_t *p_vout, bool b_fs, int i_timeout )
 {
-    FullscreenControllerWidget *p_fs = (FullscreenControllerWidget *) data;
-
-    if ( p_fs->isFSCHidden() || p_fs->windowOpacity() < DEFAULT_OPACITY )
+    vlc_mutex_lock( &lock );
+    if( b_fs && !b_fullscreen )
     {
-        IMEvent *event = new IMEvent( FullscreenControlShow_Type, 0 );
-        QApplication::postEvent( p_fs, static_cast<QEvent *>(event) );
+        b_fullscreen = true;
+        i_hide_timeout = i_timeout;
+        var_AddCallback( p_vout, "mouse-moved", FullscreenControllerWidgetMouseMoved, this );
     }
+    else if( !b_fs && b_fullscreen )
+    {
+        b_fullscreen = false;
+        i_hide_timeout = i_timeout;
+        var_DelCallback( p_vout, "mouse-moved", FullscreenControllerWidgetMouseMoved, this );
 
-    IMEvent *e = new IMEvent( FullscreenControlPlanHide_Type, 0 );
-    QApplication::postEvent( p_fs, static_cast<QEvent *>(e) );
-
-    return VLC_SUCCESS;
+        /* Force fs hidding */
+        IMEvent *eHide = new IMEvent( FullscreenControlHide_Type, 0 );
+        QApplication::postEvent( this, static_cast<QEvent *>(eHide) );
+    }
+    vlc_mutex_unlock( &lock );
 }
 
 /**********************************************************************
@@ -1211,22 +1241,24 @@ SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i ) :
     speedSlider->setOrientation( Qt::Vertical );
     speedSlider->setTickPosition( QSlider::TicksRight );
 
-    speedSlider->setRange( -100, 100 );
-    speedSlider->setSingleStep( 10 );
-    speedSlider->setPageStep( 20 );
-    speedSlider->setTickInterval( 20 );
+    speedSlider->setRange( -24, 24 );
+    speedSlider->setSingleStep( 1 );
+    speedSlider->setPageStep( 1 );
+    speedSlider->setTickInterval( 12 );
 
     CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );
 
     QToolButton *normalSpeedButton = new QToolButton( this );
     normalSpeedButton->setMaximumSize( QSize( 26, 20 ) );
     normalSpeedButton->setAutoRaise( true );
-    normalSpeedButton->setText( "N" );
+    normalSpeedButton->setText( "1x" );
     normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );
 
     CONNECT( normalSpeedButton, clicked(), this, resetRate() );
 
     QVBoxLayout *speedControlLayout = new QVBoxLayout;
+    speedControlLayout->setLayoutMargins( 4, 4, 4, 4, 4 );
+    speedControlLayout->setSpacing( 4 );
     speedControlLayout->addWidget( speedSlider );
     speedControlLayout->addWidget( normalSpeedButton );
     setLayout( speedControlLayout );
@@ -1240,10 +1272,6 @@ void SpeedControlWidget::setEnable( bool b_enable )
     speedSlider->setEnabled( b_enable );
 }
 
-#define RATE_SLIDER_MAXIMUM 3.0
-#define RATE_SLIDER_MINIMUM 0.3
-#define RATE_SLIDER_LENGTH 100.0
-
 void SpeedControlWidget::updateControls( int rate )
 {
     if( speedSlider->isSliderDown() )
@@ -1252,32 +1280,16 @@ void SpeedControlWidget::updateControls( int rate )
         return;
     }
 
-    int sliderValue;
-    double speed = INPUT_RATE_DEFAULT / (double)rate;
+    double value = 12 * log( (double)INPUT_RATE_DEFAULT / rate ) / log( 2 );
+    int sliderValue = (int) ( ( value > 0 ) ? value + .5 : value - .5 );
 
-    if( rate >= INPUT_RATE_DEFAULT )
+    if( sliderValue < speedSlider->minimum() )
     {
-        if( speed < RATE_SLIDER_MINIMUM )
-        {
-            sliderValue = speedSlider->minimum();
-        }
-        else
-        {
-            sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
-                                        / ( 1.0 - RATE_SLIDER_MAXIMUM ) );
-        }
+        sliderValue = speedSlider->minimum();
     }
-    else
+    else if( sliderValue > speedSlider->maximum() )
     {
-        if( speed > RATE_SLIDER_MAXIMUM )
-        {
-            sliderValue = speedSlider->maximum();
-        }
-        else
-        {
-            sliderValue = (int)( ( speed - 1.0 ) * RATE_SLIDER_LENGTH
-                                        / ( RATE_SLIDER_MAXIMUM - 1.0 ) );
-        }
+        sliderValue = speedSlider->maximum();
     }
 
     //Block signals to avoid feedback loop
@@ -1288,18 +1300,8 @@ void SpeedControlWidget::updateControls( int rate )
 
 void SpeedControlWidget::updateRate( int sliderValue )
 {
-    int rate;
-
-    if( sliderValue < 0.0 )
-    {
-        rate = (int)(INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
-            ( sliderValue * ( 1.0 - RATE_SLIDER_MINIMUM ) + RATE_SLIDER_LENGTH ));
-    }
-    else
-    {
-        rate = (int)(INPUT_RATE_DEFAULT* RATE_SLIDER_LENGTH /
-            ( sliderValue * ( RATE_SLIDER_MAXIMUM - 1.0 ) + RATE_SLIDER_LENGTH ));
-    }
+    double speed = pow( 2, (double)sliderValue / 12 );
+    int rate = INPUT_RATE_DEFAULT / speed;
 
     THEMIM->getIM()->setRate(rate);
 }