namespace Msp {
namespace GLtk {
+/**
+Sliders are used to adjust numeric values visually. This class provides the
+common interface for sliders - see classes HSlider and VSlider for concrete
+variations.
+*/
class Slider: public Widget
{
public:
+ class Loader: public DataFile::DerivedObjectLoader<Slider, Widget::Loader>
+ {
+ public:
+ Loader(Slider &);
+ };
+
sigc::signal<void, double> signal_value_changed;
- void set_value(double);
- void set_range(double, double);
- void set_step(double);
- double get_value() const { return value; }
protected:
double min, max;
double value;
double step;
- Slider(const Resources &);
+ bool dragging;
+ double drag_start_pos;
+ double drag_start_value;
+ unsigned drag_area_size;
+
+ Slider();
+
+public:
+ void set_value(double);
+ void set_range(double, double);
+ void set_step(double);
+ double get_value() const { return value; }
+
+protected:
+ void start_drag(int);
+ void drag(int);
+ void end_drag();
};
} // namespace GLtk