moved SubGraph class into graph module.

NodeGraphQt/__init__.py

@@ -81,9 +81,9 @@ def __init__(self):
     print('Cannot import "Qt.py" module falling back on '
           '"NodeGraphQt.vendor.Qt ({})"'.format(qtpy_ver))
 
-from .base.graph import NodeGraph
+from .base.graph import NodeGraph, SubGraph
 from .base.menu import NodesMenu, NodeGraphMenu, NodeGraphCommand
-from .base.node import NodeObject, BaseNode, BackdropNode, SubGraph
+from .base.node import NodeObject, BaseNode, BackdropNode
 from .base.port import Port
 from .pkg_info import __version__ as VERSION
 from .pkg_info import __license__ as LICENSE

NodeGraphQt/base/graph.py

@@ -13,7 +13,7 @@
 from .factory import NodeFactory
 from .menu import NodeGraphMenu, NodesMenu
 from .model import NodeGraphModel
-from .node import NodeObject, BaseNode, SubGraph
+from .node import NodeObject, BaseNode
 from .port import Port
 from ..constants import (DRAG_DROP_ID,
                          PIPE_LAYOUT_CURVED,
@@ -1567,3 +1567,67 @@ def root_node(self):
             node (BaseNode): node object.
         """
         return self.get_node_by_id('0' * 13)
+
+
+class SubGraph(object):
+    """
+    The ``NodeGraphQt.SubGraph`` class is the base class that all
+    Sub Graph Node inherit from.
+
+    *Implemented on NodeGraphQt: * ``v0.1.0``
+
+    .. image:: _images/example_subgraph.gif
+        :width: 80%
+
+    """
+
+    def __init__(self):
+        self._children = set()
+
+    def children(self):
+        """
+        Returns the children of the sub graph.
+        """
+        return list(self._children)
+
+    def create_from_nodes(self, nodes):
+        """
+        Create sub graph from the nodes.
+
+        Args:
+            nodes (list[NodeGraphQt.NodeObject]): nodes to create the sub graph.
+        """
+        if self in nodes:
+            nodes.remove(self)
+        [n.set_parent(self) for n in nodes]
+
+    def add_child(self, node):
+        """
+        Add a node to the sub graph.
+
+        Args:
+            node (NodeGraphQt.BaseNode): node object.
+        """
+        self._children.add(node)
+
+    def remove_child(self, node):
+        """
+        Remove a node from the sub graph.
+
+        Args:
+            node (NodeGraphQt.BaseNode): node object.
+        """
+        if node in self._children:
+            self._children.remove(node)
+
+    def enter(self):
+        """
+        Action when enter the sub graph.
+        """
+        pass
+
+    def exit(self):
+        """
+        Action when exit the sub graph.
+        """
+        pass

NodeGraphQt/base/node.py

@@ -419,7 +419,7 @@ def set_parent(self, parent_node):
         Set parent node.
 
         Args:
-            parent_node (SubGraph): parent node.
+            parent_node (NodeGraphQt.SubGraph): parent node.
         """
         if parent_node is self:
             parent_node = None
@@ -440,7 +440,7 @@ def parent(self):
         Get parent node.
 
         Returns:
-            SubGraph: parent node or None.
+            NodeGraphQt.SubGraph: parent node or None.
         """
         return self._parent
 
@@ -1232,67 +1232,3 @@ def size(self):
         self.model.width = self.view.width
         self.model.height = self.view.height
         return self.model.width, self.model.height
-
-
-class SubGraph(object):
-    """
-    The ``NodeGraphQt.SubGraph`` class is the base class that all
-    Sub Graph Node inherit from.
-
-    *Implemented on NodeGraphQt: * ``v0.1.0``
-
-    .. image:: _images/example_subgraph.gif
-        :width: 80%
-
-    """
-
-    def __init__(self):
-        self._children = set()
-
-    def children(self):
-        """
-        Returns the children of the sub graph.
-        """
-        return list(self._children)
-
-    def create_from_nodes(self, nodes):
-        """
-        Create sub graph from the nodes.
-
-        Args:
-            nodes (list[NodeGraphQt.NodeObject]): nodes to create the sub graph.
-        """
-        if self in nodes:
-            nodes.remove(self)
-        [n.set_parent(self) for n in nodes]
-
-    def add_child(self, node):
-        """
-        Add a node to the sub graph.
-
-        Args:
-            node (NodeGraphQt.BaseNode): node object.
-        """
-        self._children.add(node)
-
-    def remove_child(self, node):
-        """
-        Remove a node from the sub graph.
-
-        Args:
-            node (NodeGraphQt.BaseNode): node object.
-        """
-        if node in self._children:
-            self._children.remove(node)
-
-    def enter(self):
-        """
-        Action when enter the sub graph.
-        """
-        pass
-
-    def exit(self):
-        """
-        Action when exit the sub graph.
-        """
-        pass

NodeGraphQt/widgets/viewer.py

@@ -54,7 +54,8 @@ def __init__(self, parent=None):
         self.setAcceptDrops(True)
         self.resize(850, 800)
 
-        self._scene_range = QtCore.QRectF(0, 0, self.size().width(), self.size().height())
+        self._scene_range = QtCore.QRectF(
+            0, 0, self.size().width(), self.size().height())
         self._update_scene()
         self._last_size = self.size()
         self.editable = True
@@ -932,7 +933,8 @@ def force_update(self):
         self._update_scene()
 
     def scene_rect(self):
-        return [self._scene_range.x(), self._scene_range.y(), self._scene_range.width(), self._scene_range.height()]
+        return [self._scene_range.x(), self._scene_range.y(),
+                self._scene_range.width(), self._scene_range.height()]
 
     def scene_center(self):
         cent = self._scene_range.center()