[pitivi] utils/misc: Add a filename_from_uri function and use it in timeline previewers

[Thibault Saunier <tsaunier src gnome org>]

commit 0f2a5ac1fed10b1be4bfb93972cd708ed55cdaba
Author: Jean-François Fortin Tam <nekohayo gmail com>
Date:   Mon Jul 1 23:47:42 2013 -0400

    utils/misc: Add a filename_from_uri function and use it in timeline previewers

 pitivi/timeline/previewers.py |    4 ++--
 pitivi/utils/misc.py          |    8 ++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/pitivi/timeline/previewers.py b/pitivi/timeline/previewers.py
index 5128f43..e904a91 100644
--- a/pitivi/timeline/previewers.py
+++ b/pitivi/timeline/previewers.py
@@ -35,7 +35,7 @@ from gi.repository import Clutter, Gst, GLib, GdkPixbuf, Cogl
 from pitivi.utils.loggable import Loggable
 from pitivi.utils.timeline import Zoomable
 from pitivi.utils.ui import EXPANDED_SIZE, SPACING
-from pitivi.utils.misc import path_from_uri, quote_uri
+from pitivi.utils.misc import filename_from_uri, quote_uri
 from pitivi.utils.ui import EXPANDED_SIZE, SPACING, CONTROL_WIDTH
 
 from math import log1p, log10
@@ -463,7 +463,7 @@ class ThumbnailCache(Loggable):
         Loggable.__init__(self)
         # TODO: replace with utils.misc.hash_file
         self._filehash = hash_file(Gst.uri_get_location(uri))
-        self._filename = os.path.basename(path_from_uri(uri))
+        self._filename = filename_from_uri(uri)
         # TODO: replace with pitivi.settings.xdg_cache_home()
         cache_dir = get_dir(os.path.join(xdg_dirs.xdg_cache_home, "pitivi"), autocreate)
         dbfile = os.path.join(get_dir(os.path.join(cache_dir, "thumbs")), self._filehash)
diff --git a/pitivi/utils/misc.py b/pitivi/utils/misc.py
index 4f7716a..668fab5 100644
--- a/pitivi/utils/misc.py
+++ b/pitivi/utils/misc.py
@@ -172,6 +172,14 @@ def path_from_uri(uri):
     return unquote(path)
 
 
+def filename_from_uri(uri):
+    """
+    Return a human-readable filename (excluding the path to the file) to be
+    used in UI elements or to shorten debug statements
+    """
+    return os.path.basename(path_from_uri(uri))
+
+
 def quote_uri(uri):
     """
     Encode a URI/path according to RFC 2396, without touching the file:/// part.