X-Git-Url: http://git.tdb.fi/?p=libs%2Fgui.git;a=blobdiff_plain;f=source%2Finput%2Fsmoothcontrol.cpp;h=6f4f5a487857deebe9fdaeaec277def92126937e;hp=f32e551d89c682e34e9de5157c83e400a6dd8938;hb=84e5e859191eeca5cf8b58da29b5f369be25c93c;hpb=f9ebab54c3debe98e108790be9c21f43f4de116f

diff --git a/source/input/smoothcontrol.cpp b/source/input/smoothcontrol.cpp
index f32e551..6f4f5a4 100644
--- a/source/input/smoothcontrol.cpp
+++ b/source/input/smoothcontrol.cpp
@@ -1,5 +1,8 @@
+#include <stdexcept>
 #include "smoothcontrol.h"
 
+using namespace std;
+
 namespace Msp {
 namespace Input {
 
@@ -33,11 +36,23 @@ SmoothControl::~SmoothControl()
 
 void SmoothControl::set_dead_zone(float d)
 {
+	if(d<0 || (threshold>0 && d>=threshold))
+		throw invalid_argument("SmoothControl::set_dead_zone");
 	dead_zone = d;
 }
 
 void SmoothControl::set_threshold(float t)
 {
+	if(t>=0 && t<=dead_zone)
+		throw invalid_argument("SmoothControl::set_threshold");
+	threshold = t;
+}
+
+void SmoothControl::set_range(float d, float t)
+{
+	if(d<0 || (t>=0 && d>=t))
+		throw invalid_argument("SmoothControl::set_range");
+	dead_zone = d;
 	threshold = t;
 }
 
@@ -72,17 +87,23 @@ void SmoothControl::on_release()
 
 void SmoothControl::on_motion(float v, float r)
 {
-	if(v<-threshold)
-		value = -1;
-	else if(v>threshold)
-		value = 1;
-	else if(v<-dead_zone)
-		value = (v+dead_zone)/(threshold-dead_zone);
+	if(v<-dead_zone)
+		value = v+dead_zone;
 	else if(v>dead_zone)
-		value = (v-dead_zone)/(threshold-dead_zone);
+		value = v-dead_zone;
 	else
 		value = 0;
 
+	if(threshold>=0)
+	{
+		if(v<-threshold)
+			value = -1;
+		else if(v>threshold)
+			value = 1;
+		else
+			value /= threshold-dead_zone;
+	}
+
 	signal_motion.emit(value);
 
 	if(paired_ctrl && (v>0 || (v==0 && paired_ctrl->value!=0)))