[pitivi] Add proper licensing to new files.

[Jean-François Fortin Tam <jfft src gnome org>]

commit 4337829266743ed152be18254ecfcea158a7a934
Author: Mathieu Duponchelle <mathieu duponchelle epitech eu>
Date:   Thu Apr 18 03:27:33 2013 +0200

    Add proper licensing to new files.

 pitivi/timeline/controls.py   |   22 ++++++++++++++++++++++
 pitivi/timeline/elements.py   |   22 ++++++++++++++++++++++
 pitivi/timeline/previewers.py |   22 ++++++++++++++++++++++
 pitivi/timeline/timeline.py   |   24 +++++++++++++++++++++++-
 4 files changed, 89 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/timeline/controls.py b/pitivi/timeline/controls.py
index b59b036..80e64f1 100644
--- a/pitivi/timeline/controls.py
+++ b/pitivi/timeline/controls.py
@@ -1,3 +1,25 @@
+# -*- coding: utf-8 -*-
+# PiTiVi , Non-linear video editor
+#
+#       pitivi/controls.py
+#
+# Copyright (c) 2013, Mathieu Duponchelle <mduponchelle1 gmail com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the
+# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
 from gi.repository import GtkClutter
 GtkClutter.init([])
 
diff --git a/pitivi/timeline/elements.py b/pitivi/timeline/elements.py
index da25b1a..4390aae 100644
--- a/pitivi/timeline/elements.py
+++ b/pitivi/timeline/elements.py
@@ -1,3 +1,25 @@
+# -*- coding: utf-8 -*-
+# PiTiVi , Non-linear video editor
+#
+#       pitivi/elements.py
+#
+# Copyright (c) 2013, Mathieu Duponchelle <mduponchelle1 gmail com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the
+# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
 """
 Convention throughout this file:
 Every GES element which name could be mistaken with a UI element
diff --git a/pitivi/timeline/previewers.py b/pitivi/timeline/previewers.py
index 18da740..d113a9f 100644
--- a/pitivi/timeline/previewers.py
+++ b/pitivi/timeline/previewers.py
@@ -1,3 +1,25 @@
+# -*- coding: utf-8 -*-
+# PiTiVi , Non-linear video editor
+#
+#       pitivi/previewers
+#
+# Copyright (c) 2013, Daniel Thul <daniel thul gmail com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the
+# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
 import hashlib
 import os
 import sqlite3
diff --git a/pitivi/timeline/timeline.py b/pitivi/timeline/timeline.py
index 5ad680c..6604a8e 100644
--- a/pitivi/timeline/timeline.py
+++ b/pitivi/timeline/timeline.py
@@ -1,3 +1,25 @@
+# -*- coding: utf-8 -*-
+# PiTiVi , Non-linear video editor
+#
+#       pitivi/timeline.py
+#
+# Copyright (c) 2013, Mathieu Duponchelle <mduponchelle1 gmail com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the
+# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
 from gi.repository import GtkClutter
 GtkClutter.init([])
 
@@ -798,10 +820,10 @@ class Timeline(Gtk.VBox, Zoomable):
         return False
 
     def _scrollToPlayhead(self):
+        #self.ruler._maybeUpdate()
         canvas_size = self.embed.get_allocation().width - CONTROL_WIDTH
         new_pos = self.timeline.playhead.props.x
         scroll_pos = self.hadj.get_value()
-
         self.scrollToPosition(min(new_pos - canvas_size / 2,
                                   self.hadj.props.upper - canvas_size - 1))