Bug#403097: kmix: show/hide menubar does not toggle state correctly

[J S Bygott <jsb_no_spm@jsbygott.fsnet.co.uk>]

Package: kmix
Version: 4:3.3.2-1
Severity: normal

How to reproduce the bug:
0. Start kmix with default settings.
1. Using the mouse, click menubar -> settings -> "hide menubar"
2. The menubar is gone. Now we try to show it again.
3. Right-click in mixer area, the context menu still says "hide"
   when it should say "show" (strange!) but click on "hide" anyway.
4. The menubar returns, but menubar -> settings now says "show menubar"
   even though the menubar *is* shown.

To restore the correct status, repeat the process.

Anaylsis:
When the menubar is showing, there are three ways to hide it:
H1) right-click in mixer area -> settings -> "hide"
H2) click menubar -> settings -> hide
H3) ctrl+m

When the menubar is hidden, there are two ways to show it:
S1) right-click in mixer area -> settings -> "show"
S2) ctrl+m

It seems that only H1 and S1 actually toggle the name of the option
between "show" and "hide".  So it is easy to get into the wrong state by
mixing, for example, H2 and S1

I think the bugfix must be for all methods to toggle the name of the
option.

-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-3-686
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)

Versions of packages kmix depends on:
ii  kdelibs4           4:3.3.2-6.4           KDE core libraries
ii  libart-2.0-2       2.3.17-1              Library of functions for 2D graphi
ii  libasound2         1.0.8-3               ALSA library
ii  libc6              2.3.2.ds1-22sarge4    GNU C Library: Shared libraries an
ii  libfam0c102        2.7.0-6sarge1         client library to control the FAM 
ii  libgcc1            1:3.4.3-13sarge1      GCC support library
ii  libice6            4.3.0.dfsg.1-14sarge2 Inter-Client Exchange library
ii  libidn11           0.5.13-1.0            GNU libidn library, implementation
ii  libpng12-0         1.2.8rel-1            PNG library - runtime
ii  libqt3c102-mt      3:3.3.4-3sarge1       Qt GUI Library (Threaded runtime v
ii  libsm6             4.3.0.dfsg.1-14sarge2 X Window System Session Management
ii  libstdc++5         1:3.3.5-13            The GNU Standard C++ Library v3
ii  libx11-6           4.3.0.dfsg.1-14sarge2 X Window System protocol client li
ii  libxext6           4.3.0.dfsg.1-14sarge2 X Window System miscellaneous exte
ii  libxrender1        0.8.3-7               X Rendering Extension client libra
ii  xlibs              4.3.0.dfsg.1-14sarge2 X Keyboard Extension (XKB) configu
ii  zlib1g             1:1.2.2-4.sarge.2     compression library - runtime

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