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If one creates a TabFolder with multiple items and each item gets to contain a ScrolledComposite which itself holds a Composite, then the respective composites (except the one on the pre-selected TabItem) will have a size of zero (even after selecting the respective TabItem in the TabFolder) until the user resizes the window manually. A demonstration code and further explanation is provided here: https://stackoverflow.com/questions/45654403/scrolledcompsite-in-tabfolder-sizes-content-to-zero/45661933 This appears to only occur when using SWT in combination with GTK 3 on Linux (Linux Mint 18 in my case) This bug was found by me in eclipse 4.6.1.M20160907-1200 but in a quick test of mine it was also reproducable in the latest eclipse Oxygen stable-release.
I fixed something related to this issue fairly recently, (~month a go?). Could you upload an SWT snippet to reproduce the issue, and I can test it against latest fixes etc...? Thanks.
(In reply to Leo Ufimtsev from comment #1) > Could you upload an SWT snippet to reproduce the issue, and I can test it > against latest fixes etc...? (In reply to Robert Müller from comment #0) > A demonstration code and further explanation is provided here: > https://stackoverflow.com/questions/45654403/scrolledcompsite-in-tabfolder- > sizes-content-to-zero/45661933 I clearly have not had my coffee yet. Let me test.
Issue doesn't reproduce for me. Fedora 26, Gtk3.22. I.e, I see red background. You sure you tried with newest SWT? http://download.eclipse.org/eclipse/downloads/ What's your GTK 3 version that you used? Maybe need to use newer one.
If I'm interpreting it correctly my GTK-version is 3.18.9 However using the latest SWT release (4.8M1) resolved the issue for me... However I'm not exactly sure whether the stand-alone version of SWT uses GTK 2 or 3 on my system. But afaik it should use GTK 3 as the default anyway?
(In reply to Robert Müller from comment #4) > If I'm interpreting it correctly my GTK-version is 3.18.9 > > However using the latest SWT release (4.8M1) resolved the issue for me... > However I'm not exactly sure whether the stand-alone version of SWT uses GTK > 2 or 3 on my system. But afaik it should use GTK 3 as the default anyway? You can get SWT to print the version of GTK that you're on: export SWT_LIB_VERSIONS=1 ./eclipse But that only works with new-ish versions of SWT, not something more than a month old. Yea, Gtk3 is usually used as default these days. Gtk2 support will eventually be dropped in the future. If you need this in older SWT version, I recommend trying the newest maintenance builds. We generally try to backport the big stuff, but it's possible that more minor things don't always get backported. If you need this in older SWT version and maintenace branch doesn't contain the fix: There were a whole bunch of size related fixes, so I'm not exactly sure what fixed it (you'd have to check git history). But if there's a patch that you'd like to be backported, feel free to link to it and we can backport it for you. Is the issue resolved for you? -> Close fixed?
