Crash when removing the last character with an open bitmap export dialog

[Yann Papouin]

Using trunk on Win32, to reproduce create a new text, type some chars the remove them with backspace. When deleting the last remaining character a crash occurred (see screenshot attached)

[su_v (suv-lp)]

Not reproduced with Inkscape 0.48+devel r11106 on
- Mac OS X 10.5.8 (i386), boost 1.47.0, Gtk+/X11 2.24.8, glib2 2.28.8
- OS X 10.7.2 (64bit), boost 1.49.0, Gtk+/X11 2.24.10, glib2 2.30.2
using default prefs and style settings (text has solid black fill and no stroke).

No longer reproduced with text which has a stroke set, even though this used to trigger such a crash:
<http://thread.gmane.org/gmane.comp.graphics.inkscape.devel/37154/focus=37201>
(fixed in r10618 according to <http://article.gmane.org/gmane.comp.graphics.inkscape.devel/37208>)

[su_v (suv-lp)]

- Can you reproduce the crash consistently?
- Any special attributes of the text which might trigger the crash?
  (please attach sample SVG file with a text object which does trigger the crash when deleted with backspace)

[jazzynico (jazzynico)]

Not reproduced on Windows XP, Inkscape trunk revision 11098, devlibs r29.

[Yann Papouin (yann-papouin)]

Ok I know how to reproduce every times, open the export to bitmap dialog first (even with a clean preferences.xml).

[jazzynico (jazzynico)]

Confirmed on Debian Wheezy, Inkscape trunk revision 11198.
Not reproduced with 0.48.1.

[su_v (suv-lp)]

Crash reproduced with r11206 if 'Export bitmap…' dialog is open (docked)
- Mac OS X 10.5.8 (i386), boost 1.47.0, Gtk+/quartz 2.24.10, glib2 2.28.8
- OS X 10.7.2 (64bit), boost 1.49.0, Gtk+/x11 2.24.10, glib2 2.32.0

[Kris (kris-degussem)]

Should be fixed in trunk revision 11288.
Was hard to track for me and in the end it was very little code to fix it (in essence, a single if did the trick).

[su_v (suv-lp)]

Removing milestone (the bug only occurred in trunk, and never in a released version).