+void HSlider::button_press(int x, int y, unsigned btn)
+{
+ if(btn==1 && geom.is_inside_relative(x, y) && max>min)
+ {
+ int sx = static_cast<int>((geom.w-slider_size)*(value-min)/(max-min));
+ if(x<sx)
+ set_value(value-step*10);
+ else if(x>=static_cast<int>(sx+slider_size))
+ set_value(value+step*10);
+ else
+ start_drag(x);
+ }
+}
+
+void HSlider::button_release(int, int, unsigned btn)
+{
+ if(btn==1 && dragging)
+ end_drag();
+}
+
+void HSlider::pointer_motion(int x, int)
+{
+ if(dragging)
+ drag(x);
+}
+
+void HSlider::on_geometry_change()
+{
+ drag_area_size = geom.w-slider_size;
+}
+
+void HSlider::on_style_change()
+{
+ if(!style)
+ return;
+
+ if(const Part *slider_part = style->get_part("slider"))
+ slider_size = slider_part->get_geometry().w;
+
+ on_geometry_change();
+}
+