Created attachment 1167473 [details]
Patch to fix the worst of the sizing issues
I'm the 4Pane upstream. The gtk+3 version that fedora 24 uses, 3.20.6, seems to cause problems with wxWidgets programs, both with their sizing and background colour. This affects 4Pane as follows:
On the default gnome the most serious problem is when opening a new tab, its contents aren't displayed. Opening the terminal emulator makes the tab contents show correctly, but closing it again it leaves an empty space.
Less serious problems:
The background of the directory-view panes is grey.
Contents of the built-in Help dialogs are often not visible.
On KDE and Xfce, the initial single tab may display incorrectly at first. Otherwise the same as gnome, but Help contents display OK.
LXDE has the same problems, but initially no contents are visible. Help dialogs are sized at 1,1 and, if expanded, have no contents.
These are not really 4Pane problems and I shall be reporting them to the wxWidgets upstream. Meanwhile there are two possible fixes:
1) Build 4Pane against the wxGTK package (which uses gtk+2) instead of wxGTK3. That would solve all the problems.
2) Apply the attached patch, which fixes the worst of the sizing issues.
My preference is for 1), but I suspect yours won't be...
I will apply your patch and push it on Fedora 25/24. Thank you for providing the patch.
4Pane-4.0-2.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-9cbc56d6b3
4Pane-4.0-2.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-9cbc56d6b3
4Pane-4.0-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
I'm delighted to report that there is now a proper fix for these problems in upstream wxWidgets, and that this is currently being applied to the wxGTK3 package; see https://bugzilla.redhat.com/show_bug.cgi?id=1392102
Would it be possible to remove this 4Pane patch for those builds that have the proper wxGTK3 patch applied, as it will then be unnecessary.
Okay, as new wxGTK3 is to be pushed into F-24 soon, after that I will push new 4Pane build.
Well, now I am using wxGTK3-3.0.2-30.fc25.x86_64, which is supposed to have the fix for bug 1392102 , however I noticed that when opening 4Pane "Help" window, the size is very small (perhaps the width is 1), regardless of applying or not applying the patch you provided on this bug.
That's right. The wxGTK fixes were for the background colour, and the worst of the sizing problems. However the tiny 'help' dialogs with some DEs must have a different cause.
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