[pitivi/1.0] Use GObject.ParamFlags instead of deprecated constants

[Thibault Saunier <tsaunier src gnome org>]

commit 723fd4c47818386f3445a9e9589296cd84897be1
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Sun Aug 26 23:36:03 2018 +0200

    Use GObject.ParamFlags instead of deprecated constants

 pitivi/timeline/previewers.py | 6 +++---
 pitivi/undo/timeline.py       | 2 +-
 pitivi/utils/widgets.py       | 3 +--
 3 files changed, 5 insertions(+), 6 deletions(-)
---
diff --git a/pitivi/timeline/previewers.py b/pitivi/timeline/previewers.py
index edced463..e2312a52 100644
--- a/pitivi/timeline/previewers.py
+++ b/pitivi/timeline/previewers.py
@@ -101,7 +101,7 @@ class ThumbnailBin(PreviewerBin):
                 "uri of the media file",
                 "A URI",
                 "",
-                GObject.PARAM_READWRITE),
+                GObject.ParamFlags.READWRITE),
     }
 
     def __init__(self, bin_desc="videoconvert ! videorate ! "
@@ -178,11 +178,11 @@ class WaveformPreviewer(PreviewerBin):
                 "uri of the media file",
                 "A URI",
                 "",
-                GObject.PARAM_READWRITE),
+                GObject.ParamFlags.READWRITE),
         "duration": (GObject.TYPE_UINT64,
                      "Duration",
                      "Duration",
-                     0, GLib.MAXUINT64 - 1, 0, GObject.PARAM_READWRITE)
+                     0, GLib.MAXUINT64 - 1, 0, GObject.ParamFlags.READWRITE)
     }
 
     def __init__(self):
diff --git a/pitivi/undo/timeline.py b/pitivi/undo/timeline.py
index 390ddcde..62cb2d08 100644
--- a/pitivi/undo/timeline.py
+++ b/pitivi/undo/timeline.py
@@ -165,7 +165,7 @@ class TrackElementAction(UndoableAction):
         self.track_element = track_element
         self.track_element_props = []
         for prop in self.track_element.list_children_properties():
-            if not prop.flags & GObject.PARAM_WRITABLE or \
+            if not prop.flags & GObject.ParamFlags.WRITABLE or \
                     prop.name in PROPS_TO_IGNORE:
                 continue
             prop_name = child_property_name(prop)
diff --git a/pitivi/utils/widgets.py b/pitivi/utils/widgets.py
index 46e83655..f98b3d25 100644
--- a/pitivi/utils/widgets.py
+++ b/pitivi/utils/widgets.py
@@ -755,7 +755,6 @@ class GstElementSettingsWidget(Gtk.Box, Loggable):
         if src_caps_fields:
             srccaps = self.element.get_static_pad('src').get_pad_template().caps
 
-            vals = {}
             for field, prefered_value in src_caps_fields.items():
                 gvalue = srccaps[0][field]
                 if isinstance(gvalue, Gst.ValueList) and isinstance(prefered_value, Gst.ValueList):
@@ -953,7 +952,7 @@ class GstElementSettingsWidget(Gtk.Box, Loggable):
         """Gets a name/value dict with the properties."""
         values = {}
         for prop, widget in self.properties.items():
-            if not prop.flags & GObject.PARAM_WRITABLE:
+            if not prop.flags & GObject.ParamFlags.WRITABLE:
                 continue
             value = widget.getWidgetValue()
             if value is not None and (value != prop.default_value or with_default):