[pitivi] mediafilespreviewer: Clarify what parameter the PreviewWidget constructor expects

[Thibault Saunier <tsaunier src gnome org>]

commit 06660905dd34d63a76f058b4cfaae4a691ad28b9
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Sat Mar 1 16:22:34 2014 +0100

    mediafilespreviewer: Clarify what parameter the PreviewWidget constructor expects

 pitivi/mainwindow.py          |    4 ++--
 pitivi/mediafilespreviewer.py |   10 ++++++++--
 pitivi/medialibrary.py        |    6 +++---
 pitivi/viewer.py              |    2 +-
 4 files changed, 14 insertions(+), 8 deletions(-)
---
diff --git a/pitivi/mainwindow.py b/pitivi/mainwindow.py
index aca8204..7352ac7 100644
--- a/pitivi/mainwindow.py
+++ b/pitivi/mainwindow.py
@@ -1006,7 +1006,7 @@ class PitiviMainWindow(Gtk.Window, Loggable):
 
         chooser = Gtk.FileChooserWidget(action=Gtk.FileChooserAction.OPEN)
         chooser.set_select_multiple(False)
-        previewer = PreviewWidget(self.app)
+        previewer = PreviewWidget(self.settings)
         chooser.set_preview_widget(previewer)
         chooser.set_use_preview_label(False)
         chooser.connect('update-preview', previewer.add_preview_request)
@@ -1268,7 +1268,7 @@ class PreviewAssetWindow(Gtk.Window):
         self.set_type_hint(Gdk.WindowTypeHint.UTILITY)
         self.set_transient_for(main_window)
 
-        self._previewer = PreviewWidget(main_window, minimal=True)
+        self._previewer = PreviewWidget(main_window.settings, minimal=True)
         self.add(self._previewer)
         self._previewer.previewUri(self._asset.get_id())
         self._previewer.show()
diff --git a/pitivi/mediafilespreviewer.py b/pitivi/mediafilespreviewer.py
index b791814..5988d52 100644
--- a/pitivi/mediafilespreviewer.py
+++ b/pitivi/mediafilespreviewer.py
@@ -69,15 +69,21 @@ acceptable_tags = [
 
 
 class PreviewWidget(Gtk.Grid, Loggable):
+    """
+    Widget for displaying a GStreamer sink with playback controls.
 
-    def __init__(self, instance, minimal=False):
+    @ivar settings: The settings of the app.
+    @type settings: L{GlobalSettings}
+    """
+
+    def __init__(self, settings, minimal=False):
         Gtk.Grid.__init__(self)
         Loggable.__init__(self)
 
         self.log("Init PreviewWidget")
         self.connect('destroy', self._destroy_cb)
 
-        self.settings = instance.settings
+        self.settings = settings
         self.preview_cache = {}
         self.preview_cache_errors = {}
 
diff --git a/pitivi/medialibrary.py b/pitivi/medialibrary.py
index 046aa1e..f2cd424 100644
--- a/pitivi/medialibrary.py
+++ b/pitivi/medialibrary.py
@@ -131,13 +131,13 @@ class MediaLibraryWidget(Gtk.VBox, Loggable):
         'play': (GObject.SignalFlags.RUN_LAST, None,
                 (GObject.TYPE_PYOBJECT,))}
 
-    def __init__(self, instance, uiman):
+    def __init__(self, app, uiman):
         Gtk.VBox.__init__(self)
         Loggable.__init__(self)
 
         self.pending_rows = []
 
-        self.app = instance
+        self.app = app
         self._errors = []
         self._missing_thumbs = []
         self._project = None
@@ -459,7 +459,7 @@ class MediaLibraryWidget(Gtk.VBox, Loggable):
         self._importDialog.set_current_folder(self.app.settings.lastImportFolder)
         self._importDialog.connect('response', self._dialogBoxResponseCb)
         self._importDialog.connect('close', self._dialogBoxCloseCb)
-        previewer = PreviewWidget(self.app)
+        previewer = PreviewWidget(self.app.settings)
         self._importDialog.set_preview_widget(previewer)
         self._importDialog.set_use_preview_label(False)
         self._importDialog.connect('update-preview', previewer.add_preview_request)
diff --git a/pitivi/viewer.py b/pitivi/viewer.py
index 4ba5fd2..16063a2 100644
--- a/pitivi/viewer.py
+++ b/pitivi/viewer.py
@@ -787,7 +787,7 @@ class TransformationBox():
 
 class ViewerWidget(Gtk.AspectFrame, Loggable):
     """
-    Widget for displaying properly GStreamer video sink
+    Widget for displaying a GStreamer video sink.
 
     @ivar settings: The settings of the application.
     @type settings: L{GlobalSettings}