addressed issue #176 updated mousePressEvent.

Author: jchanvfx

NodeGraphQt/qgraphics/node_abstract.py

@@ -38,6 +38,12 @@ def boundingRect(self):
         return QtCore.QRectF(0.0, 0.0, self._width, self._height)
 
     def mousePressEvent(self, event):
+        """
+        Re-implemented to update "self._properties['selected']" attribute.
+
+        Args:
+            event (QtWidgets.QGraphicsSceneMouseEvent): mouse event.
+        """
         self._properties['selected'] = True
         super(AbstractNodeItem, self).mousePressEvent(event)
 

NodeGraphQt/qgraphics/node_base.py

@@ -197,12 +197,23 @@ def paint(self, painter, option, widget):
         painter.restore()
 
     def mousePressEvent(self, event):
+        """
+        Re-implemented to ignore event if LMB is over port collision area.
+
+        Args:
+            event (QtWidgets.QGraphicsSceneMouseEvent): mouse event.
+        """
         if event.button() == QtCore.Qt.LeftButton:
-            start = PortItem().boundingRect().width() - PORT_FALLOFF
-            end = self.boundingRect().width() - start
-            x_pos = event.pos().x()
-            if not start <= x_pos <= end:
-                event.ignore()
+            for p in self._input_items.keys():
+                if p.hovered:
+                    event.ignore()
+                    super(NodeItem, self).mousePressEvent(event)
+                    return
+            for p in self._output_items.keys():
+                if p.hovered:
+                    event.ignore()
+                    super(NodeItem, self).mousePressEvent(event)
+                    return
         super(NodeItem, self).mousePressEvent(event)
 
     def mouseReleaseEvent(self, event):

NodeGraphQt/qgraphics/port.py

@@ -61,11 +61,13 @@ def paint(self, painter, option, widget):
         """
         painter.save()
 
-        ### display the falloff colision ###
+        #  display falloff collision for debugging
+        # ----------------------------------------------------------------------
         # pen = QtGui.QPen(QtGui.QColor(255, 255, 255, 80), 0.8)
         # pen.setStyle(QtCore.Qt.DotLine)
         # painter.setPen(pen)
         # painter.drawRect(self.boundingRect())
+        # ----------------------------------------------------------------------
 
         rect_w = self._width / 1.8
         rect_h = self._height / 1.8
@@ -123,8 +125,6 @@ def itemChange(self, change, value):
         return super(PortItem, self).itemChange(change, value)
 
     def mousePressEvent(self, event):
-        # if event.modifiers() != QtCore.Qt.AltModifier:
-        #     self.viewer_start_connection()
         super(PortItem, self).mousePressEvent(event)
 
     def mouseReleaseEvent(self, event):