Launchpad has imported 4 comments from the remote bug at https://bugs.kde.org/show_bug.cgi?id=256944.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2010-11-15T01:12:56+00:00 Eckhart Wörner wrote: Version: unspecified (using KDE 4.4.5) OS: Linux This bug has been copied over from http://bugs.debian.org/cgi- bin/bugreport.cgi?bug=603480 ---- In qguiplatformplugin_kde.cpp:fileDialogSetVisible it has if (!kdefd && visible) { if(qfd->options() & QFileDialog::DontUseNativeDialog) return false; kdefd = new KFileDialogBridge(KUrl::fromPath(qfd->directory().canonicalPath()), qt2KdeFilter(qfd->nameFilters().join(";;")), qfd); qfd->setProperty("_k_bridge", QVariant::fromValue(kdefd)); } i.e. if you are making this visible and kdefd hasn't been created then create it now. Most of the contents of the function are guarded by an if (visible) however on line 249 we have kdefd->setVisible(visible); and if you make the object hidden before it's ever been made visible then kdefd will be NULL and it seg's on line 249. This is the underlying cause of [Debian] bug 599303 in ktoon which is marked RC. It makes ktoon unusable for KDE users (although it works for Gnome users!) I suggest guarding this line with an if (kdefd) but I don't know the structure to know if that is all that is needed. Reproducible: Didn't try Reply at: https://bugs.launchpad.net/ubuntu/+source/ktoon/+bug/592129/comments/5 ------------------------------------------------------------------------ On 2010-11-15T15:09:30+00:00 Cfeck wrote: Proposed patch: Index: qguiplatformplugin_kde.cpp =================================================================== --- qguiplatformplugin_kde.cpp (revision 1197348) +++ qguiplatformplugin_kde.cpp (working copy) @@ -214,7 +214,7 @@ virtual bool fileDialogSetVisible(QFileDialog *qfd, bool visible) { K_FD(qfd); - if (!kdefd && visible) { + if (!kdefd) { if(qfd->options() & QFileDialog::DontUseNativeDialog) return false; Reply at: https://bugs.launchpad.net/ubuntu/+source/ktoon/+bug/592129/comments/6 ------------------------------------------------------------------------ On 2010-11-21T02:30:53+00:00 Eckhart Wörner wrote: (In reply to comment #1) > Proposed patch: Doesn't that make fileDialogSetVisible(false) unnecessarily expensive? What are the reasons against the original submitter's proposal of guarding the kdefd->setVisible(visible) call? Reply at: https://bugs.launchpad.net/ubuntu/+source/ktoon/+bug/592129/comments/7 ------------------------------------------------------------------------ On 2020-12-09T01:34:23+00:00 Justin Zobel wrote: Thank you for the report, Eckhart. As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved. I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you. Reply at: https://bugs.launchpad.net/ubuntu/+source/ktoon/+bug/592129/comments/18 ** Changed in: kdebase-workspace Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kde-workspace in Ubuntu. https://bugs.launchpad.net/bugs/592129 Title: ktoon crashes on start (empty window with title Fatal error) To manage notifications about this bug go to: https://bugs.launchpad.net/kdebase-workspace/+bug/592129/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
