Plc trace, highlight of reference connection when clicked on (refs #174)

xtt/lib/flow/src/flow_api.cpp

@@ -854,4 +854,8 @@ int flow_ConCreateStop( flow_tCtx ctx)
   return ctx->con_create_stop();
 }
 
+int flow_ConIsReference( flow_tCon con)
+{
+  return ((FlowCon *)con)->is_reference();
+}
 

xtt/lib/flow/src/flow_api.h

@@ -284,6 +284,7 @@ int flow_PendingPaste( flow_tCtx ctx);
 int flow_PendingPasteStop( flow_tCtx ctx);
 int flow_GetConCreateActive( flow_tCtx ctx);
 int flow_ConCreateStop( flow_tCtx ctx);
+int flow_ConIsReference( flow_tCon con);
 
 
 #if defined __cplusplus

xtt/lib/flow/src/flow_con.h

@@ -118,6 +118,8 @@ class FlowCon : public FlowArrayElem {
     void select_region_insert( double ll_x, double ll_y, double ur_x, 
 			double ur_y);
     flow_eObjectType type() { return flow_eObjectType_Con;};
+    int is_reference() { return temporary_ref || cc->con_type == flow_eConType_Reference;}
+
     double	x_right;
     double	x_left;
     double	y_high;

xtt/lib/xtt/src/xtt_trace.cpp

@@ -730,6 +730,14 @@ int RtTrace::flow_cb( FlowCtx *ctx, flow_tEvent event)
 	flow_SelectInsert( ctx, event->object.object);
       }
       break;
+    case flow_eObjectType_Con:
+      if ( flow_ConIsReference( event->object.object)) {
+	int val;
+
+	flow_GetHighlight( event->object.object, &val);
+	flow_SetHighlight( event->object.object, !val);
+      }
+      break;
     default:
       flow_SelectClear( ctx);
     }