Minor usability fixes for routing in district diagrams

[simantics/district.git] / org.simantics.district.network.ui / src / org / simantics / district / network / ui / participants / DNPointerInteractor.java

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/participants/DNPointerInteractor.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/participants/DNPointerInteractor.java
index 298c4ce11e7be89c25f881cc6e1ca710b20f7b39..c61adba9fa335f7303a75bc223080dd42f4d4fa5 100644 (file)
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/participants/DNPointerInteractor.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/participants/DNPointerInteractor.java
@@ -7,6 +7,7 @@ import java.util.Set;
 
 import org.simantics.district.network.ui.adapters.DistrictNetworkEdgeElement;
 import org.simantics.district.network.ui.adapters.DistrictNetworkVertexElement;
+import org.simantics.g2d.canvas.ICanvasContext;
 import org.simantics.g2d.canvas.ICanvasParticipant;
 import org.simantics.g2d.diagram.handler.PickRequest.PickSorter;
 import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
@@ -21,6 +22,8 @@ import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
 
 public class DNPointerInteractor extends PointerInteractor {
 
+    private RoutingMode routingMode;
+
     private static class DNPickSorter implements PickSorter {
 
         @Override
@@ -69,7 +72,11 @@ public class DNPointerInteractor extends PointerInteractor {
     @EventHandler(priority = 1000)
     public boolean enterroutingMode(KeyEvent ke) {
         if (Character.toLowerCase(ke.character) == 't' && ke instanceof KeyReleasedEvent) {
-            getContext().add(new RoutingMode(0));
+            ICanvasContext canvasContext = getContext();
+            if (routingMode == null || routingMode.isRemoved()) {
+                routingMode = new RoutingMode(0);
+                canvasContext.add(routingMode);
+            }
         }
         return false;
     }