Improve the display of large animated images
There is room for improvement by connecting to the GdkPixbufLoader::area-updated
signal, and displaying frames as soon as they are available rather than waiting for the whole animation to load.
See what was done in xfce/tumbler@62d0f3e2 to get the first frame, although here it would involve deeper changes (but localized to image_viewer.c
). In particular, we should make the best possible use of asynchronous image loading (!34 (merged)).
See xfce/tumbler#48 (closed) for an example of such an animated image.