X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.h;h=6c95526f13f2699f14c89049fe5f252510383a2e;hb=3db68f2604b657e79f1b2b317c19c41c2d5a985b;hp=d4ae46b632040fe9b6fb8dd8c90a21a7a5125af8;hpb=c062ca892fc6e10f74a76991b5d4b4349c046b5f;p=libs%2Fgltk.git

diff --git a/source/slider.h b/source/slider.h
index d4ae46b..6c95526 100644
--- a/source/slider.h
+++ b/source/slider.h
@@ -1,3 +1,10 @@
+/* $Id$
+
+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_
 
@@ -7,21 +14,45 @@
 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:
-	sigc::signal<void, double> signal_value_changed;
+	class Loader: public Widget::Loader
+	{
+	public:
+		Loader(Slider &);
+		Slider &get_object() const;
+	};
 
-	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;
 
+	bool dragging;
+	double drag_start_pos;
+	double drag_start_value;
+	unsigned drag_area_size;
+
+public:
+	sigc::signal<void, double> signal_value_changed;
+
+protected:
 	Slider(const Resources &);
+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