initial push

src/controller/ChangeView.py

@@ -0,0 +1,57 @@
+# Python imports
+
+# Lib imports
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk
+
+# Application imports
+from mixins import CommonActionsMixin
+
+
+class ChangeView(Gtk.Box, CommonActionsMixin):
+    def __init__(self):
+        super(ChangeView, self).__init__()
+
+        from_container             = Gtk.Box()
+        to_container               = Gtk.Box()
+        from_scroll_vw, \
+        self.from_store            = self._create_treeview_widget(title="From:")
+        to_scroll_vw,   \
+        self.to_store              = self._create_treeview_widget(title="To:")
+
+        from_container.add(from_scroll_vw)
+        to_container.add(to_scroll_vw)
+
+        from_container.set_orientation(1)
+        to_container.set_orientation(1)
+
+        self.set_spacing(20)
+        self.set_border_width(2)
+        self.set_homogeneous(True)
+        self.add(from_container)
+        self.add(to_container)
+        self.show_all()
+
+
+    def update_from_list(self):
+        if event_system.block_from_update:
+            return
+
+        print("Updating From List...")
+        if self.from_store:
+            self.from_store.clear()
+
+        for i, change in enumerate(event_system.from_changes):
+            self.from_store.insert(i, [change])
+
+    def update_to_list(self):
+        if event_system.block_to_update:
+            return
+
+        print("Updating To List...")
+        if self.to_store:
+            self.to_store.clear()
+
+        for i, change in enumerate(event_system.to_changes):
+            self.to_store.insert(i, [change])