Features/GTK3/Porting/Jukebox

This page is being performed while I'm porting Jukebox Activity to Gtk3.

There is a [ ticket] with some useful information that I'm using on the porting and to keep tracking this port. Besides, this wiki page will be useful to write some code snippets about what are the difficulties that I'm having on the port and maybe can be useful for someone else.

I will take this guide as reference on the Gtk3 porting.

Code Snippets

Gtk.Scale

Replace:

self.hscale = gtk.HScale(self.adjustment)

with:

self.hscale = Gtk.Scale(orientation=Gtk.Orientation.HORIZONTAL,
                        adjustment=self.adjustment)

GtkWindow.xid

The way to access to the "window" attribute changed and the way to access to "xid" as well. So,

Replace:

self.videowidget_xid = videowidget.window.xid

with:

self.videowidget_xid = videowidget.get_window().get_xid()

NOTE: this is used to insert the animation window inside a widget instead opening a new window

Gtk.DrawingArea's flags

Replace:

self.unset_flags(gtk.DOUBLE_BUFFERED)
self.set_flags(gtk.APP_PAINTABLE)

with:

self.set_app_paintable(True)
self.set_double_buffered(False)

Gtk.TreeView

• http://python-gtk-3-tutorial.readthedocs.org/en/latest/treeview.html

Access to a particular row:

Replaced:

media_idx = path[COLUMNS['index']]

with:

treeiter = model.get_iter(path)
media_idx = model.get_value(treeiter, COLUMNS['index'])

Same here:

self._playlist.pop(row[0])

replaced with:

index = sel_model.get_value(sel_model.get_iter(row), 0)
self._playlist.pop(index)

Useful Links

• https://wiki.ubuntu.com/Novacut/GStreamer1.0
• https://live.gnome.org/GnomeGoals/PortToGstreamer1
• http://www.spinics.net/lists/fedora-desktop/msg07545.html