[Bug 159369] New: KCategorizedView segfaults without a proxy model or category drawer

[David Benjamin]

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http://bugs.kde.org/show_bug.cgi?id=159369         
           Summary: KCategorizedView segfaults without a proxy model or
                    category drawer
           Product: kdelibs
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: kdeui
        AssignedTo: kdelibs-bugs kde org
        ReportedBy: dnas.dnas gmail com


Version:            (using Devel)
Installed from:    Compiled sources
OS:                Linux

I was playing with KCategorizedView and noticed that it crashes with a segfault when the supplied model is not a KCategorizedSortFilterProxyModel (and thus m_proxyModel is NULL). The crashes occur when one single-clicks an entry, or double-clicks to rename it.

(There are parts of the code that check of m_proxyModel is NULL, so I assume this usage of the class is meant to be valid.)

Patch attached below.

The same also occurs when no KCategoryDrawer is supplied, but I'm not sure how to fix that.