[pitivi] pitivi/ui/sourcelist.py: use nautilus behaviour for right-click modifiers

[Edward Hervey <edwardrv src gnome org>]

commit 84ba6ffe80e0cca607bad4e33885bdd2c75e52db
Author: Brandon Lewis <brandon_lewis alum berkeley edu>
Date:   Fri Feb 5 17:02:54 2010 -0800

    pitivi/ui/sourcelist.py: use nautilus behaviour for right-click modifiers

 pitivi/ui/sourcelist.py |   19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/ui/sourcelist.py b/pitivi/ui/sourcelist.py
index 754c7f6..51f450e 100644
--- a/pitivi/ui/sourcelist.py
+++ b/pitivi/ui/sourcelist.py
@@ -677,7 +677,16 @@ class SourceList(gtk.VBox, Loggable):
             self.popup_remitem.set_sensitive(True)
             self.popup_playmenuitem.set_sensitive(True)
         elif view != None and (not self._nothingUnderMouse(view, event)):
-            self._viewUnselectAll()
+            if not event.state & (gtk.gdk.CONTROL_MASK | gtk.gdk.SHIFT_MASK):
+                self._viewUnselectAll()
+            elif self.clip_view == SHOW_TREEVIEW and self._viewHasSelection() \
+                    and (event.state & gtk.gdk.SHIFT_MASK):
+                selection = self.treeview.get_selection()
+                start_path = self._viewGetFirstSelected()
+                end_path = self._viewGetPathAtPos(event)
+                self._viewUnselectAll()
+                selection.select_range(start_path, end_path)
+
             self._viewSelectPath(self._viewGetPathAtPos(event))
             self.popup_remitem.set_sensitive(True)
             self.popup_playmenuitem.set_sensitive(True)
@@ -687,6 +696,14 @@ class SourceList(gtk.VBox, Loggable):
 
         self.popup.popup(None, None, None, event.button, event.time)
 
+    def _viewGetFirstSelected(self):
+        paths = self.getSelectedPaths()
+        return paths[0]
+
+    def _viewHasSelection(self):
+        paths = self.getSelectedPaths()
+        return bool(len(paths))
+
     def _viewGetPathAtPos(self, event):
         if self.clip_view == SHOW_TREEVIEW:
             pathinfo = self.treeview.get_path_at_pos(int(event.x), int(event.y))