GNOME Bugzilla – Bug 399336
Scrolled window/viewport doesn't shrink correctly
Last modified: 2015-04-20 13:32:42 UTC
I have a GtkWindow which contains a GtkScrolledWindow which contains a GtkViewport which contains a custom widget. The scrolled window is set to never show a horizonal scrollbar and always show a vertical scrollbar. My custom widget prints the size of the allocation is receives in size_allocate. If I resize the window the custom widget recieves larger and larger allocations, as is expected. However, when I shrink the window again, I'd expect the allocated width to shrink as there is no way of scrolling horizonally. Currently if I expand and then shrink the window, some of the content is outside of the visible area and cannot be reached.
Added to CC list.
Created attachment 83667 [details] Testcase Hi!!! I've been trying to reproduce this behaviour, but I'm not able to do it. I'm using this example (gtkscrolledwindow example with little modifications) but it works fine for me. The example creates a window, puts a scrolled window insise, a viewport inside the window and then a gtktable inside the viewport. The scrolled window has GTK_POLICY_NEVER as the policy to show the hscrollbar and GTK_POLICY_ALWAYS as the policy to show the vscrollbar. Once executed, if you make the window larger, the gtktable inside grows, as you say. But when you shrink the window, the gtktable shrinks too, as it should, to correctly fit into the new size. Debugging the test, I checked that the allocation values sent to the gtktable are always correct. The only way I found to get a behaviour like the one you explain was forcing to the table a minimum size, so the table doesn't shrink below it. That way, if you shrink the window enough, the table won't shrink and some of its contents will be out of the visible area, but this is what should happen. Could you, please, post the code you are using to try to reproduce the bug? It will be very useful to me. Thanks in advance :) Greetings.
Annoyingly I can't replicate this any more but I do have a different bug instead... Basically sometimes when I shrink the table it gets the size of the children wrong. I have a feeling that this is weird interaction with my code so will attempt to debug it.
Ok, I'm waiting for your debug. Tell me if you need help :)
Closing this bug report as no further information has been provided. Please feel free to reopen this bug if you can provide the information asked for. Thanks!
Take a look at http://gsequencer.org/downloads/ags-0_4_2-50.tar.bz2 it seems to be a problem with GtkScrollbar, think so :) Yes, it is outside of the area.
bash-4.3$ cat /usr/lib/pkgconfig/gtk+-2.0.pc prefix=/usr exec_prefix=${prefix} libdir=${exec_prefix}/lib includedir=${prefix}/include target=x11 gtk_binary_version=2.10.0 gtk_host=x86_64-unknown-linux-gnu Name: GTK+ Description: GTK+ Graphical UI Library (${target} target) Version: 2.24.25 Requires: gdk-${target}-2.0 atk cairo gdk-pixbuf-2.0 gio-2.0 pangoft2 Libs: -L${libdir} -lgtk-${target}-2.0 Cflags: -I${includedir}/gtk-2.0
It's highly unlikely that an 8 year old bug is going to be looked at. It's even less likely that it's going to be looked at through a full application. Please, open a new bug describing the exact issue, and attach a small, self-contained test case that exhibits the issue.
If would compile and start you see it for sure. But me doing a test-case for you. Do you have a sample test case me could adopt? Since me don't have experience to do it in C but me did it in Java with Selenium and Arquillian. Does something alike exist for Gtk+-2.0? If you don't believe: ./configure make ags ./ags