Add Submenu of variations of module type.

Non functional so far.

gui/builtinContextMenus/__init__.py

@@ -19,4 +19,5 @@ __all__ = [
     "targetResists",
     "priceClear",
     "amount",
+    "metaSwap",
 ]

gui/builtinContextMenus/metaSwap.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+from gui.contextMenu import ContextMenu
+from gui.itemStats import ItemStatsDialog
+import gui.mainFrame
+import service
+import wx
+
+class MetaSwap(ContextMenu):
+    def __init__(self):
+        self.mainFrame = gui.mainFrame.MainFrame.getInstance()
+
+    def display(self, srcContext, selection):
+
+        if self.mainFrame.getActiveFit() is None or srcContext not in ("fittingModule", "projectedModule"):
+            return False
+
+        self.module = selection[0]
+
+        return True
+
+    def getText(self, itmContext, selection):
+        return "Variations"
+
+    def getSubMenu(self, context, selection, rootMenu, i, pitem):
+        def get_metalevel(x):
+            return x.attributes["metaLevel"].value
+
+        m = wx.Menu()
+        mkt = service.Market.getInstance()
+        items = list(mkt.getVariationsByItems([selection[0].item]))
+        items.sort(key=get_metalevel)
+        group = None
+        for item in items:
+            # Apparently no metaGroup for the Tech I variant:
+            if item.metaGroup is None:
+                thisgroup = "Tech I"
+            else:
+                thisgroup = item.metaGroup.name
+
+            if thisgroup != group:
+                group = thisgroup
+                id = wx.NewId()
+                m.Append(id, u'─ %s ─' % group)
+                m.Enable(id, False)
+
+            id = wx.NewId()
+            name = item.name
+            m.AppendItem(wx.MenuItem(rootMenu, id, name))
+        return m
+
+MetaSwap.register()