Wayland support

[ascheepe]

Hello,

Under gnome wayland the video window does not embed like under X. I believe this is because under wayland there needs to be a different xWindowId? Some research shows this might work to get it; gdk_wayland_window_get_wl_surface (window));.

subtitleeditor/src/vp/gstplayer.cc

Line 741 in 75fa38b

gulong GstPlayer::get_xwindow_id() {

Thanks for this neat program btw!

e: this is the 'error' I get running it btw;
(subtitleeditor:49896): Gdk-WARNING **: 21:35:16.439: ../../../../../gdk/x11/gdkwindow-x11.c:5653 drawable is not a native X11 window