X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.cpp;h=ead5664a303fae8e88ac26c9e0967629a5b02ceb;hb=50bf1ef2e2c3c38de20f6996a6c5ed0066111177;hp=cb24c002b1a497bb5502f81bb566a434d5abd3c6;hpb=c062ca892fc6e10f74a76991b5d4b4349c046b5f;p=libs%2Fgltk.git

diff --git a/source/slider.cpp b/source/slider.cpp
index cb24c00..ead5664 100644
--- a/source/slider.cpp
+++ b/source/slider.cpp
@@ -1,3 +1,10 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
 #include "slider.h"
 
 namespace Msp {
@@ -8,12 +15,15 @@ Slider::Slider(const Resources &r):
 	min(0),
 	max(1),
 	value(0),
-	step(0.1)
-{
-}
+	step(0.1),
+	dragging(false),
+	drag_area_size(0)
+{ }
 
 void Slider::set_value(double v)
 {
+	double old_value=value;
+
 	if(v<min)
 		value=min;
 	else if(v>max)
@@ -24,7 +34,55 @@ void Slider::set_value(double v)
 		value=min+steps*step;
 	}
 
-	signal_value_changed.emit(value);
+	if(value!=old_value)
+		signal_value_changed.emit(value);
+}
+
+void Slider::set_range(double a, double b)
+{
+	min=a;
+	max=b;
+	set_value(value);
+}
+
+void Slider::set_step(double s)
+{
+	step=s;
+	set_value(value);
+}
+
+void Slider::start_drag(int p)
+{
+	dragging=true;
+	drag_start_pos=p;
+	drag_start_value=value;
+	state|=ACTIVE;
+}
+
+void Slider::drag(int p)
+{
+	if(max>min)
+		set_value(drag_start_value+(p-drag_start_pos)*(max-min)/drag_area_size);
+}
+
+void Slider::end_drag()
+{
+	dragging=false;
+	state&=~ACTIVE;
+}
+
+
+Slider::Loader::Loader(Slider &s):
+	Widget::Loader(s)
+{
+	add("range", &Slider::min, &Slider::max);
+	add("step",  &Slider::step);
+	add("value", &Slider::value);
+}
+
+Slider &Slider::Loader::get_object() const
+{
+	return static_cast<Slider &>(wdg);
 }
 
 } // namespace GLtk