Hi, seems like a bug in the GdkPixbuf image loader code.
I believe it will always try to load the highest resolution (so you cannot load the 16x16px version from the icon file). But that doesn't explain why it isn't decoding the pixel data correctly. Benjamin On Sun, 2019-06-16 at 22:05 +0200, c.buhtz--- via python-hackers-list wrote: > Does no one has an idea about this? > > Did someone test the ico file I linked, too? Can my problem be > reproduced by others? > > On 2019-06-10 14:17 "c.buhtz--- via python-hackers-list" > <python-hackers-list@gnome.org> wrote: > > This question is about ico-files which contain more then one icon > > usually in multiple sizes. > > > > The current example can be found here. I am not sure if the problem > > is > > me or the ico file itself is not valid. > > > > https://www.jabref.org/favicon.ico > > > > In Firefox the icon looks like expected. When I open the (with > > aiohttp) downloaded ico file with IrfanView (via wine on Debian > > stable) or with Gimp it looks like expected. Especially in Gimp I > > can > > see the icon in multiple sizes (each in one GIMP layer). > > > > Fine. > > > > I want to open it with GdkPixbuf "scale" it to 16x16 (or select the > > correct size). This Pixbuf I want to use as an icon in a > > Gtk.TreeView > > and I want to store it back into an ico file. > > > > This doesn't work because the scaled result looks like picture > > noise > > on an old TV. > > > > What I tried so far... > > > > org = GdkPixbuf.Pixbuf.new_from_file('_favicon.ico') > > small = org.scale_simple(16, 16, 2) > > small.savev('small.ico', 'ico', '', '') > > > > and > > > > org = GdkPixbuf.Pixbuf.new_from_file_at_size('_favicon.ico', 16, > > 16) > > _______________________________________________ > > python-hackers-list mailing list > > python-hackers-list@gnome.org > > https://mail.gnome.org/mailman/listinfo/python-hackers-list > > _______________________________________________ > python-hackers-list mailing list > python-hackers-list@gnome.org > https://mail.gnome.org/mailman/listinfo/python-hackers-list >
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