X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fbcpot.C;h=e934fc537d4a161ed5753ac31eadeb4b6430617b;hb=7dd4a71f0c957c2d95ae83fe789076d7445ecb60;hp=7417e79ed6a780a221aedc28058022eed0e7d15e;hpb=4f7f413cbc1c6ea5da27cb75ca27a3ab317243ec;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/guicast/bcpot.C b/cinelerra-5.1/guicast/bcpot.C
index 7417e79e..e934fc53 100644
--- a/cinelerra-5.1/guicast/bcpot.C
+++ b/cinelerra-5.1/guicast/bcpot.C
@@ -460,7 +460,8 @@ const char*  BC_FPot::get_caption()
 
 float BC_FPot::get_percentage()
 {
-	return (value - minvalue) / (maxvalue - minvalue);
+	float range = maxvalue - minvalue;
+	return range > 0 ? (value - minvalue) / range : minvalue;
 }
 
 int BC_FPot::percentage_to_value(float percentage)
@@ -549,7 +550,8 @@ const char* BC_IPot::get_caption()
 
 float BC_IPot::get_percentage()
 {
-	return ((float)value - minvalue) / (maxvalue - minvalue);
+	float range = maxvalue - minvalue;
+	return range > 0 ? ((float)value - minvalue) / range : minvalue;
 }
 
 int BC_IPot::percentage_to_value(float percentage)
@@ -633,7 +635,8 @@ const char* BC_QPot::get_caption()
 
 float BC_QPot::get_percentage()
 {
-	return ((float)value - minvalue) / (maxvalue - minvalue);
+	float range = maxvalue - minvalue;
+	return range > 0 ? ((float)value - minvalue) / range : 0;
 }
 
 int BC_QPot::percentage_to_value(float percentage)
@@ -709,7 +712,8 @@ const char* BC_PercentagePot::get_caption()
 
 float BC_PercentagePot::get_percentage()
 {
-	return (value - minvalue) / (maxvalue - minvalue);
+	float range = maxvalue - minvalue;
+	return range > 0 ? (value - minvalue) / range : minvalue;
 }
 
 int BC_PercentagePot::percentage_to_value(float percentage)