X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.h;h=a2395766a258d6182a04d69fef4a1ccd5ee7bcb7;hb=08b66dd1b4478fef61525ad2dad1a1fb54eab0f0;hp=d4ae46b632040fe9b6fb8dd8c90a21a7a5125af8;hpb=c062ca892fc6e10f74a76991b5d4b4349c046b5f;p=libs%2Fgltk.git

diff --git a/source/slider.h b/source/slider.h
index d4ae46b..a239576 100644
--- a/source/slider.h
+++ b/source/slider.h
@@ -7,21 +7,46 @@
 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;
+	unsigned slider_size;
+
+	Slider();
+
+public:
+	void set_value(double);
+	void set_range(double, double);
+	void set_step(double);
+	double get_value() const { return value; }
+
+protected:
+	void click(int);
+	void start_drag(int);
+	void drag(int);
+	void end_drag();
 };
 
 } // namespace GLtk