X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.cpp;h=ead5664a303fae8e88ac26c9e0967629a5b02ceb;hb=6081ed9020ad22214a8e5b3829092f97b12d7c71;hp=52a4b4d3b97ccf11d4209b767619018aec3d8674;hpb=c2635c5a3dca6a6cea5562fd387beb0662b18cf0;p=libs%2Fgltk.git

diff --git a/source/slider.cpp b/source/slider.cpp
index 52a4b4d..ead5664 100644
--- a/source/slider.cpp
+++ b/source/slider.cpp
@@ -15,7 +15,9 @@ 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)
@@ -49,5 +51,39 @@ void Slider::set_step(double 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
 } // namespace Msp