1 files changed, 33 insertions, 15 deletions

diff --git a/src/gui/styles/qgtkstyle.cpp b/src/gui/styles/qgtkstyle.cpp
index 9cc64b3..323639a 100644
--- a/src/gui/styles/qgtkstyle.cpp
+++ b/src/gui/styles/qgtkstyle.cpp
@@ -1706,12 +1706,17 @@ void QGtkStyle::drawComplexControl(ComplexControl control, const QStyleOptionCom
                 fakePos = maximum;
             else if (scrollBar->sliderPosition > scrollBar->minimum)
                 fakePos = maximum - 1;
-            GtkObject *adjustment =  d->gtk_adjustment_new(fakePos, 0, maximum, 0, 0, 0);
 
-            if (horizontal)
-                d->gtk_range_set_adjustment((GtkRange*)(gtkHScrollBar), (GtkAdjustment*)(adjustment));
-            else
-                d->gtk_range_set_adjustment((GtkRange*)(gtkVScrollBar), (GtkAdjustment*)(adjustment));
+
+            GtkRange *range = (GtkRange*)(horizontal ? gtkHScrollBar : gtkVScrollBar);
+            GtkAdjustment *adjustment = d->gtk_range_get_adjustment(range);
+
+            if (adjustment) {
+                d->gtk_adjustment_configure(adjustment, fakePos, 0, maximum, 0, 0, 0);
+            } else {
+                adjustment = (GtkAdjustment*)d->gtk_adjustment_new(fakePos, 0, maximum, 0, 0, 0);
+                d->gtk_range_set_adjustment(range, adjustment);
+            }
 
             if (scrollBar->subControls & SC_ScrollBarGroove) {
                 GtkStateType state = GTK_STATE_ACTIVE;
@@ -1990,15 +1995,29 @@ void QGtkStyle::drawComplexControl(ComplexControl control, const QStyleOptionCom
             style = scaleWidget->style;
 
             if ((option->subControls & SC_SliderGroove) && groove.isValid()) {
-                GtkObject *adjustment =  d->gtk_adjustment_new(slider->sliderPosition,
-                                         slider->minimum,
-                                         slider->maximum,
-                                         slider->singleStep,
-                                         slider->singleStep,
-                                         slider->pageStep);
+
+                GtkRange *range = (GtkRange*)scaleWidget;
+                GtkAdjustment *adjustment = d->gtk_range_get_adjustment(range);
+                if (adjustment) {
+                    d->gtk_adjustment_configure(adjustment,
+                                                slider->sliderPosition,
+                                                slider->minimum,
+                                                slider->maximum,
+                                                slider->singleStep,
+                                                slider->singleStep,
+                                                slider->pageStep);
+                } else {
+                    adjustment = (GtkAdjustment*)d->gtk_adjustment_new(slider->sliderPosition,
+                                                                       slider->minimum,
+                                                                       slider->maximum,
+                                                                       slider->singleStep,
+                                                                       slider->singleStep,
+                                                                       slider->pageStep);
+                    d->gtk_range_set_adjustment(range, adjustment);
+                }
+
                 int outerSize;
-                d->gtk_range_set_adjustment ((GtkRange*)(scaleWidget), (GtkAdjustment*)(adjustment));
-                d->gtk_range_set_inverted((GtkRange*)(scaleWidget), !horizontal);
+                d->gtk_range_set_inverted(range, !horizontal);
                 d->gtk_widget_style_get(scaleWidget, "trough-border", &outerSize, NULL);
                 outerSize++;
 
@@ -2998,8 +3017,7 @@ void QGtkStyle::drawControl(ControlElement element,
             else if (bar->progress > bar->minimum)
                 fakePos = maximum - 1;
 
-            GtkObject *adjustment =  d->gtk_adjustment_new(fakePos, 0, maximum, 0, 0, 0);
-            d->gtk_progress_set_adjustment((GtkProgress*)(gtkProgressBar), (GtkAdjustment*)(adjustment));
+            d->gtk_progress_configure((GtkProgress*)gtkProgressBar, fakePos, 0, maximum);
 
             QRect progressBar;