fix tracking behavior

components/slider.cpp

@@ -100,6 +100,7 @@ void Slider::mouseReleaseEvent(QMouseEvent *event)
 
     if (d->slide) {
         d->slide = false;
+        setValue(sliderPosition());
         return QAbstractSlider::mouseReleaseEvent(event);
     }
 

components/slider_p.h

@@ -69,7 +69,7 @@ public:
         const int pos = Style::sliderPositionFromValue(
                     q->minimum(),
                     q->maximum(),
-                    q->value(),
+                    q->sliderPosition(),
                     span,
                     false);
 

examples/sliderexamples.cpp

@@ -125,6 +125,8 @@ SliderExamples::SliderExamples(QWidget *parent)
         mainLayout->addWidget(frame);
 
         connect(button, SIGNAL(pressed()), this, SLOT(updateSliderValue()));
+
+        _slider2->setTracking(false);
     }
 }