Network: Add split reach method.

src/Model/River.py

@@ -919,3 +919,5 @@ Last export at: @date."""
 
         self._add_edge(r1)
         self._add_edge(r2)
+
+        return r1, r2

src/View/Network/ContextMenu.py

@@ -96,6 +96,7 @@ class EdgeMenu(AbstractMenu):
 
         reverse = self._menu.addAction(self._trad["menu_rev_edge"])
         delete = self._menu.addAction(self._trad["menu_del_edge"])
+        split = self._menu.addAction(self._trad["menu_split_edge"])
         if self._parent.graph.is_enable_edge(it.edge):
             enable = self._menu.addAction(self._trad["menu_dis_edge"])
             is_enable = True
@@ -110,3 +111,5 @@ class EdgeMenu(AbstractMenu):
             self._parent.enable_edge(it, is_enable)
         elif action == reverse:
             self._parent.reverse_edge(it)
+        elif action == split:
+            self._parent.split_edge(it)

src/View/Network/GraphWidget.py

@@ -38,6 +38,7 @@ from Model.Network.Node import Node
 from Model.Network.Edge import Edge
 from Model.Network.Graph import Graph
 
+from View.Network.ProfileDialog import SelectProfileDialog
 from View.Network.UndoCommand import *
 from View.Network.ContextMenu import (
     DefaultMenu, NodeMenu, EdgeMenu,
@@ -720,6 +721,31 @@ class GraphWidget(QGraphicsView):
         self.changeNode.emit(self.sender())
         self.changeEdge.emit(self.sender())
 
+    def split_edge(self, item):
+        edge = item.edge
+
+        dlg = SelectProfileDialog(
+            study=self.parent._study,
+            reach=edge,
+            trad=self._trad,
+            parent=self.parent,
+        )
+        if not dlg.exec():
+            return
+
+        profile = dlg._profile
+        self._undo.push(
+            SplitEdgeCommand(
+                self.graph, edge, profile
+            )
+        )
+
+        self.scene().clear()
+        self.create_items()
+
+        self.changeNode.emit(self.sender())
+        self.changeEdge.emit(self.sender())
+
     def update_edges(self, node):
         """Update display of all edges linked with the node
 

src/View/Network/UndoCommand.py

@@ -117,6 +117,27 @@ class DelEdgeCommand(QUndoCommand):
     def redo(self):
         self._graph.remove_edge(self._edge)
 
+class SplitEdgeCommand(QUndoCommand):
+    def __init__(self, graph, edge, profile):
+        QUndoCommand.__init__(self)
+
+        self._graph = graph
+        self._edge = edge
+        self._profile = profile
+        self._new_r1 = None
+        self._new_r2 = None
+
+    def undo(self):
+        self._new_r1.set_as_deleted()
+        self._new_r2.set_as_deleted()
+
+    def redo(self):
+        if self._new_r1 is None:
+            self._new_r1, self._new_r2 = self._graph._split_reach(
+                self._edge, self._profile)
+        else:
+            self._new_r1.set_as_not_deleted()
+            self._new_r2.set_as_not_deleted()
 
 class SetCommand(QUndoCommand):
     def __init__(self, element, column, new_value):

src/View/Network/translate.py

@@ -47,6 +47,7 @@ class NetworkTranslate(MainTranslate):
         )
 
         self._dict["menu_del_edge"] = _translate("Network", "Delete the reach")
+        self._dict["menu_split_edge"] = _translate("Network", "Split the reach")
         self._dict["menu_ena_edge"] = _translate("Network", "Enable the reach")
         self._dict["menu_dis_edge"] = _translate("Network",
                                                  "Disable the reach")
@@ -54,6 +55,11 @@ class NetworkTranslate(MainTranslate):
             "Network", "Reverse the reach orientation"
         )
 
+        self._dict["dialog_select_profile_title"] = _translate(
+            "Network",
+            "Select profile"
+        )
+
         self._sub_dict["table_headers_node"] = {
             "name": self._dict['name'],
             "type": self._dict['type'],