model: Add river model on top of other model component.

src/Model/River.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+from Model.Network.Node import Node
+from Model.Network.Edge import Edge
+from Model.Network.Graph import Graph
+
+from Model.Geometry.Profile import Profile
+from Model.Geometry.Reach import Reach
+
+class RiverNode(Node):
+    def __init__(self, id:str, name:str,
+                 x:float, y:float):
+        super(RiverNode, self).__init__(
+            id, name,
+            x, y
+        )
+
+        self.locker = None
+
+class RiverReach(Edge):
+    def __init__(self, id:str, name:str,
+                 node1:RiverNode = None,
+                 node2:RiverNode = None):
+        super(RiverReach, self).__init__(
+            id, name,
+            node1, node2
+        )
+
+        self.reach = None
+
+class River(Graph):
+    def __init__(self):
+        super(River, self).__init__()

src/Model/Study.py

@@ -19,7 +19,7 @@ class Study(Serializable):
         self.last_save_date = datetime.now()
 
         # Study data
-        self.data = {}
+        self.river = None
 
     @classmethod
     def new(cls):

src/View/Network/NetworkWindow.py

@@ -1,8 +1,7 @@
 # -*- coding: utf-8 -*-
 
-from Model.Network.Node import Node
-from Model.Network.Edge import Edge
-from Model.Network.Graph import Graph
+from Model.River import RiverNode, RiverReach, River
+
 from View.ASubWindow import ASubWindow
 from View.Network.GraphWidget import GraphWidget
 from View.Network.TableModel import (
@@ -26,11 +25,11 @@ class NetworkWindow(ASubWindow):
         self.ui.setWindowTitle(title)
 
         self.model = model
-        if "graph" not in self.model.data:
-            self.graph = Graph()
-            self.model.data["graph"] = self.graph
+        if self.model.river is None:
+            self.graph = River()
+            self.model.river = self.graph
         else:
-            self.graph = self.model.data["graph"]
+            self.graph = self.model.river
 
         # Graph Widget