Allow SwitchQuantity first index to start at value other than 0.

src/app/ParamWidget.cpp

@@ -274,7 +274,8 @@ void ParamWidget::createContextMenu() {
 	menu->addChild(paramLabel);
 
 	if (switchQuantity) {
-		int index = (int) std::floor(pq->getValue());
+		float minValue = pq->getMinValue();
+		int index = (int) std::floor(pq->getValue() - minValue);
 		int numStates = switchQuantity->labels.size();
 		for (int i = 0; i < numStates; i++) {
 			std::string label = switchQuantity->labels[i];
@@ -282,7 +283,7 @@ void ParamWidget::createContextMenu() {
 			paramValueItem->text = label;
 			paramValueItem->rightText = CHECKMARK(i == index);
 			paramValueItem->paramWidget = this;
-			paramValueItem->value = i;
+			paramValueItem->value = minValue + i;
 			menu->addChild(paramValueItem);
 		}
 		if (numStates > 0) {

src/engine/ParamQuantity.cpp

@@ -177,7 +177,7 @@ void ParamQuantity::fromJson(json_t* rootJ) {
 
 
 std::string SwitchQuantity::getDisplayValueString() {
-	int index = (int) std::floor(getValue());
+	int index = (int) std::floor(getValue() - getMinValue());
 	if (!(0 <= index && index < (int) labels.size()))
 		return "";
 	return labels[index];
@@ -191,7 +191,7 @@ void SwitchQuantity::setDisplayValueString(std::string s) {
 	if (it == labels.end())
 		return;
 	int index = std::distance(labels.begin(), it);
-	setValue(index);
+	setValue(getMinValue() + index);
 }