[#138] Added drag & drop criteria re-ordering capabilities to the re-prioritization panel.

core/gui/prioritize_dialog.py

@@ -18,6 +18,19 @@ class CriterionCategoryList(GUISelectableList):
     def _update_selection(self):
         self.dialog.select_category(self.dialog.categories[self.selected_index])
 
+class PrioritizationList(GUISelectableList):
+    def __init__(self, dialog):
+        self.dialog = dialog
+        GUISelectableList.__init__(self)
+    
+    def move_indexes(self, indexes, dest_index):
+        indexes.sort()
+        prilist = self.dialog.prioritizations
+        selected = [prilist[i] for i in indexes]
+        for i in reversed(indexes):
+            del prilist[i]
+        prilist[dest_index:dest_index] = selected
+        self[:] = [crit.display for crit in prilist]
 
 class PrioritizeDialog:
     def __init__(self, view, app):
@@ -27,7 +40,7 @@ class PrioritizeDialog:
         self.criteria = []
         self.criteria_list = GUISelectableList()
         self.prioritizations = []
-        self.prioritization_list = GUISelectableList()
+        self.prioritization_list = PrioritizationList(self)
     
     #--- Private
     def _sort_key(self, dupe):

core/tests/base.py

@@ -101,3 +101,8 @@ class TestApp(TestAppBase):
         # maintainable.
         index = self.pdialog.category_list.index(name)
         self.pdialog.category_list.select(index)
+    
+    def add_pri_criterion(self, name, index):
+        self.select_pri_criterion("Kind")
+        self.pdialog.criteria_list.select([index])
+        self.pdialog.add_selected()

core/tests/prioritize_test.py

@@ -98,3 +98,14 @@ def test_size_reprioritization(app):
     app.pdialog.add_selected()
     app.pdialog.perform_reprioritization()
     eq_(app.rtable[0].data[0], 'foo2.ext2')
+
+@with_app(app_normal_results)
+def test_reorder_prioritizations(app):
+    app.add_pri_criterion("Kind", 0) # ext1
+    app.add_pri_criterion("Kind", 1) # ext2
+    app.pdialog.prioritization_list.move_indexes([1], 0)
+    expected = [
+        "Kind (ext2)",
+        "Kind (ext1)",
+    ]
+    eq_(app.pdialog.prioritization_list[:], expected)