sub graph tab bar improvements.

Author: jchanvfx

NodeGraphQt/nodes/group_node.py

@@ -44,7 +44,7 @@ def get_sub_graph(self):
         or returns None.
 
         Returns:
-            SubGraph or None: sub graph controller.
+            SubGraph: sub graph controller.
         """
         return self.graph.sub_graphs.get(self.id)
 
@@ -91,6 +91,22 @@ def collapse(self):
         """
         self.graph.collapse_group_node(self)
 
+    def set_name(self, name=''):
+        super(GroupNode, self).set_name(name)
+        # update the tab bar and navigation labels.
+        sub_graph = self.get_sub_graph()
+        if sub_graph:
+            nav_widget = sub_graph.navigation_widget
+            nav_widget.update_label_item(self.name(), self.id)
+
+            if sub_graph.parent_graph.is_root:
+                root_graph = sub_graph.parent_graph
+                tab_bar = root_graph.widget.tabBar()
+                for idx in range(tab_bar.count()):
+                    if tab_bar.tabToolTip(idx) == self.id:
+                        tab_bar.setTabText(idx, self.name())
+                        break
+
     def add_input(self, name='input', multi_input=False, display_name=True,
                   color=None, locked=False, painter_func=None):
         port = super(GroupNode, self).add_input(

NodeGraphQt/widgets/viewer_nav.py

@@ -87,7 +87,8 @@ def paint(self, painter, option, index):
         text_rect = QtCore.QRectF(
             rect.center().x() - (font_width / 2) + txt_offset,
             rect.center().y() - (font_height / 2),
-            font_width, font_height)
+            font_width, font_height
+        )
         painter.drawText(text_rect, item.text())
         painter.restore()
 
@@ -144,15 +145,23 @@ def add_label_item(self, label, node_id):
         item.setToolTip(node_id)
         metrics = QtGui.QFontMetrics(item.font())
         if hasattr(metrics, 'horizontalAdvance'):
-            width = metrics.horizontalAdvance(item.text()) + 30
+            width = metrics.horizontalAdvance(item.text())
         else:
-            width = metrics.width(item.text()) + 30
+            width = metrics.width(item.text())
+        width *= 1.5
         item.setSizeHint(QtCore.QSize(width, 20))
         self.model().appendRow(item)
         self.selectionModel().setCurrentIndex(
             self.model().indexFromItem(item),
             QtCore.QItemSelectionModel.ClearAndSelect)
 
+    def update_label_item(self, label, node_id):
+        rows = reversed(range(self.model().rowCount()))
+        for r in rows:
+            item = self.model().item(r, 0)
+            if item.toolTip() == node_id:
+                item.setText(label)
+
     def remove_label_item(self, node_id):
         rows = reversed(range(1, self.model().rowCount()))
         node_ids = [self.model().item(r, 0).toolTip() for r in rows]