[Bug 76558] Kdevelop crashes by Event onClick Documentation SiteBar

[Jonathan Solomon]

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http://bugs.kde.org/show_bug.cgi?id=76558      




------- Additional Comments From jsolomon comcast net  2004-03-21 02:33 -------
I've encountered a very similar problem except in QWindowsStyle::drawComplexControl(). Causes crashes on open or close of a new project only when the documentation tab is showing. The following patch (against Qt) is a band-aid for the problem. Please pass it on to the Trolltech guys if you think it worthwhile. (debug kernel 2.6.3.2.1.258-2-1, KDE 3.2.1, Fedora Core 2 test 1

Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --disable-libunwind-exceptions --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.3.3 20040311 (Red Hat Linux 3.3.3-3)


--- qwindowsstyle.cpp	2004-02-18 08:22:55.000000000 -0500
+++ qwindowsstyle.cpp.backup	2004-03-20 20:09:52.576762328 -0500
 @ -1624,7 +1624,16  @
 		} else {
 		    int linetop = 0, linebot = 0;
+			int numchildren = 0;
 		    // each branch needs at most two lines, ie. four end points
 		    dotoffset = (item->itemPos() + item->height() - y) %2;
-		    dotlines.resize( item->childCount() * 4 );
+			numchildren = item->childCount();
+			if (numchildren < 0) {
+				printf("QWindowsStyle::drawComplexControl: Bogus number of child items (%d) in listview\n",numchildren);
+				numchildren = 0;
+			}
+		    dotlines.resize( numchildren * 4 );
+			if (numchildren == 0) {
+				child = NULL;
+			}
 		    c = 0;