Disallow input port from Ctrl+dragging to create a new cable

CHANGELOG.md

@@ -4,9 +4,11 @@ Tip: Use `git checkout v0.3.2` for example to check out any previous version men
 ### dev
 - Cables can now stack on output ports
 - Added sub-menus for each plugin, includes optional plugin metadata like URLs
+- Added MIDI CC-to-CV Interface, updated MIDI-to-CV Interface
 - Added new scrolling methods: middle-click-and-drag, shift-scroll, and arrow keys
 - Added engine pausing in sample rate menu
 - Added resizable blank to Core
+- Added LEDs on plugs
 - Support for AMD Phenom II processors
 - Use self-contained Mac app bundle, no need for a Rack folder
 

src/app/Port.cpp

@@ -36,8 +36,14 @@ void Port::onDragEnd() {
 void Port::onDragStart() {
 	// Try to grab wire on top of stack
 	WireWidget *wire = gRackWidget->wireContainer->getTopWire(this);
+	if (guiIsModPressed()) {
+		if (type == INPUT)
+			return;
+		else
+			wire = NULL;
+	}
 
-	if (wire && !guiIsModPressed()) {
+	if (wire) {
 		// Disconnect existing wire
 		if (type == INPUT)
 			wire->inputPort = NULL;