namespace GLtk {
VSlider::VSlider(const Resources &r):
- Slider(r),
- dragging(false)
+ Slider(r)
{
update_style();
}
void VSlider::button_press(int x, int y, unsigned btn)
{
- if(geom.is_inside(x, y))
+ if(btn==1 && geom.is_inside_relative(x, y) && max>min)
{
- int sh=get_slider_height();
- int sy=geom.y+static_cast<int>((geom.h-sh)*(value-min)/(max-min));
- if(btn==1 && y>=sy && y<sy+sh)
- {
- dragging=true;
- state=ACTIVE;
- drag_start_y=y;
- drag_start_value=value;
- }
+ int sy=static_cast<int>((geom.h-slider_size)*(value-min)/(max-min));
+ if(y<sy)
+ set_value(value-step*10);
+ else if(y>=static_cast<int>(sy+slider_size))
+ set_value(value+step*10);
+ else
+ start_drag(y);
}
}
void VSlider::button_release(int, int, unsigned btn)
{
- if(btn==1)
- {
- dragging=false;
- state=NORMAL;
- }
+ if(btn==1 && dragging)
+ end_drag();
}
void VSlider::pointer_motion(int, int y)
{
if(dragging)
- {
- set_value(drag_start_value+(y-drag_start_y)*(max-min)/(geom.h-get_slider_height()));
- }
+ drag(y);
}
void VSlider::render_special(const Part &part) const
if(part.get_name()=="slider")
{
Alignment align=part.get_alignment();
- align.y=(value-min)/(max-min);
+ if(max>min)
+ align.y=(value-min)/(max-min);
Geometry pgeom=part.get_geometry();
align.apply(pgeom, geom, part.get_margin());
}
}
-unsigned VSlider::get_slider_height() const
+void VSlider::on_geometry_change()
+{
+ drag_area_size=geom.h-slider_size;
+}
+
+void VSlider::on_style_change()
{
for(PartSeq::const_iterator i=style->get_parts().begin(); i!=style->get_parts().end(); ++i)
if(i->get_name()=="slider")
- return i->get_geometry().h;
+ slider_size=i->get_geometry().h;
- return 0;
+ on_geometry_change();
}
} // namespace GLtk