17 void Slider::set_value(double v)
19 double old_value = value;
27 unsigned steps = static_cast<unsigned>((v-min)/step+0.5);
28 value = min+steps*step;
33 signal_value_changed.emit(value);
38 void Slider::set_range(double a, double b)
45 void Slider::set_step(double s)
51 void Slider::click(int p)
53 p -= drag_area_offset;
54 if(p<0 || p>=static_cast<int>(drag_area_size))
57 int sp = static_cast<int>((drag_area_size-slider_size)*(value-min)/(max-min));
59 set_value(value-step*10);
60 else if(p>=static_cast<int>(sp+slider_size))
61 set_value(value+step*10);
63 start_drag(drag_area_offset+p);
66 void Slider::start_drag(int p)
70 drag_start_value = value;
74 void Slider::drag(int p)
77 set_value(drag_start_value+(p-drag_start_pos)*(max-min)/(drag_area_size-slider_size));
80 void Slider::end_drag()
87 Slider::Loader::Loader(Slider &s):
88 DataFile::DerivedObjectLoader<Slider, Widget::Loader>(s)
90 add("range", &Slider::min, &Slider::max);
91 add("step", &Slider::step);
92 add("value", &Slider::value);