X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.cpp;h=52a4b4d3b97ccf11d4209b767619018aec3d8674;hb=ed9873ba7ee862ad76937f579fe371c1a27d5715;hp=e7f67c111016cd87b3eb348883e4788292b1bb97;hpb=c1f038acb91eb3bfaa34dfd4729d19ed3f871a42;p=libs%2Fgltk.git

diff --git a/source/slider.cpp b/source/slider.cpp
index e7f67c1..52a4b4d 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 {
@@ -9,11 +16,12 @@ Slider::Slider(const Resources &r):
 	max(1),
 	value(0),
 	step(0.1)
-{
-}
+{ }
 
 void Slider::set_value(double v)
 {
+	double old_value=value;
+
 	if(v<min)
 		value=min;
 	else if(v>max)
@@ -23,6 +31,22 @@ void Slider::set_value(double v)
 		unsigned steps=static_cast<unsigned>((v-min)/step+0.5);
 		value=min+steps*step;
 	}
+
+	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);
 }
 
 } // namespace GLtk