-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
#ifndef MSP_GLTK_SLIDER_H_
#define MSP_GLTK_SLIDER_H_
/**
Sliders are used to adjust numeric values visually. This class provides the
-common interface for sliders - see classes HSlider and VSlider for concrete
-variations.
+common interface and logic for sliders but can't be instantiated. Use HSlider
+or VSlider depending on which direction you want the slider to be in.
*/
class Slider: public Widget
{
public:
- class Loader: public Widget::Loader
+ class Loader: public DataFile::DerivedObjectLoader<Slider, Widget::Loader>
{
public:
Loader(Slider &);
- Slider &get_object() const;
};
protected:
+ enum Direction
+ {
+ HORIZONTAL,
+ VERTICAL
+ };
+
+public:
+ sigc::signal<void, double> signal_value_changed;
+
+protected:
+ Direction dir;
double min, max;
double value;
double step;
+ double page_size;
bool dragging;
double drag_start_pos;
double drag_start_value;
unsigned drag_area_size;
+ unsigned drag_area_offset;
+ unsigned slider_min_size;
+ unsigned slider_size;
+ unsigned total_margin;
-public:
- sigc::signal<void, double> signal_value_changed;
+ Slider(Direction);
-protected:
- Slider();
public:
void set_value(double);
void set_range(double, double);
void set_step(double);
+ void set_page_size(double);
double get_value() const { return value; }
+
protected:
- void start_drag(int);
- void drag(int);
- void end_drag();
+ virtual void autosize_special(const Part &, Geometry &) const;
+ virtual void rebuild_special(const Part &);
+
+public:
+ virtual void button_press(int, int, unsigned);
+ virtual void button_release(int, int, unsigned);
+ virtual void pointer_motion(int, int);
+
+protected:
+ virtual void on_size_change();
+ virtual void on_style_change();
+};
+
+
+class VSlider: public Slider
+{
+public:
+ VSlider(): Slider(VERTICAL) { }
+
+ virtual const char *get_class() const { return "vslider"; }
+};
+
+class HSlider: public Slider
+{
+public:
+ HSlider(): Slider(HORIZONTAL) { }
+
+ virtual const char *get_class() const { return "hslider"; }
};
} // namespace GLtk