From a20f4643997e583f7c04422b004cea37afca3759 Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Mon, 16 Jun 2008 08:37:34 +0000
Subject: [PATCH] To introduce "cycling" feature for "slider" functionality

---
 src/VISUGUI/VisuGUI_Slider.cxx | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/src/VISUGUI/VisuGUI_Slider.cxx b/src/VISUGUI/VisuGUI_Slider.cxx
index aed93da6..d7be50ca 100644
--- a/src/VISUGUI/VisuGUI_Slider.cxx
+++ b/src/VISUGUI/VisuGUI_Slider.cxx
@@ -154,7 +154,7 @@ VisuGUI_Slider::VisuGUI_Slider( VisuGUI* theModule,
 	myIsCycled->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed );
 	myIsCycled->setLayoutDirection( Qt::LeftToRight );
 	myIsCycled->setCheckable( true );
-	myIsCycled->setEnabled( false );
+	//myIsCycled->setEnabled( false );
 	aGridLayout->addWidget( myIsCycled, 2, 2, 1, 1 );
 
 	myTimeStampStrings = new QComboBox( aParent );
@@ -228,12 +228,13 @@ VisuGUI_Slider::VisuGUI_Slider( VisuGUI* theModule,
       	aHBoxLayout->addWidget( aLabel );   
       
       	mySpeedSlider = new QSlider( aParent );
-      	mySpeedSlider->setLayoutDirection( Qt::RightToLeft );
+      	mySpeedSlider->setMinimum( 1 );
       	mySpeedSlider->setMaximum( 100 );
-      	mySpeedSlider->setValue( 55 );
+      	mySpeedSlider->setValue( mySpeedSlider->maximum() / 2 );
+	mySpeedSlider->setPageStep( mySpeedSlider->maximum() / 5 );
+      	mySpeedSlider->setTickInterval( mySpeedSlider->pageStep() );    
       	mySpeedSlider->setOrientation( Qt::Horizontal );
       	mySpeedSlider->setTickPosition( QSlider::TicksBelow );
-      	mySpeedSlider->setTickInterval( 20 );    
       	aHBoxLayout->addWidget( mySpeedSlider );   
       	
       	aVBoxLayout->addLayout( aHBoxLayout );
@@ -540,15 +541,15 @@ void VisuGUI_Slider::onPlay( bool on )
 {
   if( on )
   {
-    myPlayButton->setIcon( myPlayPixmap );
+    myPlayButton->setIcon( myPausePixmap );
 
-    int delay = int(5000.0 / double(mySpeedSlider->value()));
+    int delay = int( 50.0 * mySpeedSlider->maximum() / mySpeedSlider->value() );
     myTimer->start( delay );
   }
   else
   {
     myTimer->stop();
-    myPlayButton->setIcon( myPausePixmap );
+    myPlayButton->setIcon( myPlayPixmap );
   }
 }
 
@@ -638,7 +639,7 @@ void VisuGUI_Slider::onValueChanged( int value )
 void VisuGUI_Slider::onSpeedChanged( int value )
 {
   if(myPlayButton->isChecked()){
-    int delay = int(5000.0 / double(mySpeedSlider->value()));
+    int delay = int( 50.0 * mySpeedSlider->maximum() / mySpeedSlider->value() );
     myTimer->start( delay );
   }
 }
@@ -648,10 +649,14 @@ void VisuGUI_Slider::onSpeedChanged( int value )
 void VisuGUI_Slider::onTimeout()
 {
   int value = mySlider->value();
-  if( value < mySlider->maximum() )
+  if ( value < mySlider->maximum() ) {
     onNext();
-  else
-    myPlayButton->setChecked( false );
+  } else {
+    if ( myIsCycled->isChecked() )
+      onFirst();
+    else
+      myPlayButton->setChecked( false );
+  }
 }
 
 
-- 
2.39.2