[Freeciv-Dev] (PR#10023) client segfault when switching tilesets

["Vasco Alexandre da Silva Costa" <vasc@xxxxxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=10023 >

> [jdorje - Fri Sep 10 18:24:16 2004]:
> 
> I started with the isotrident tileset, then switched to the civ3gfx 
> tileset, then I switched back.  I played for a turn or two, then got a 
> crash:

GtkPixcomm (and other places) are widgets which store SPRITE pointers,
or pointers to GdkPixmaps of the tileset, and follow the pointers when a
partial refresh is necessary. You can't safely change the graphics from
under the client, unless you hide all the windows prior to changing the
graphics and do a full update before showing the windows again.