[Freewx-maint] Bug#869382: libwxgtk3.0-0: Drawing sample line test broken

[D Haley]

Package: libwxgtk3.0-0v5
Version: 3.0.2+dfsg-4
Severity: normal
File: libwxgtk3.0-0

Dear Maintainer,

I was trying to use lines in my application which uses wxGTK. I've found that in the drawing sample shipped with wxGTK, the lines screen doesn't seem to give the correct visual output.

In the "Testing lines of width 0", the "dot/short dash/long dash/dot dash" lines appear visually identical. The same is true for the width 1 test.

In the width 2 testh however, the lines start ot be visually distinct.

It looks like the mapping between wxGTK and the gtk drawing code doesn't quite tee up.

To reproduce this install the wx3.0-examples package, navigate to
/usr/share/doc/wx3.0-examples/examples/samples, then copy out the drawing example to somewhere writeable, eg ~/tmp/wx/drawing. You need to copy sample.xpm as well, into the immediate parent path (eg ~/tmp/wx/). 

Then go into ~/tmp/wx/drawing/, and execute make to build the example. Now launch the example (./drawing), then in the file menu, select "Lines screen". Observe the incorrectly drawn lines.

I'm unsure if this is an upstream bug or not.

Thanks!


-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libwxgtk3.0-0v5:amd64 depends on:
ii  libc6                     2.24-11
ii  libcairo2                 1.14.8-1
ii  libgcc1                   1:6.3.0-18
ii  libgdk-pixbuf2.0-0        2.36.5-2
ii  libgl1-mesa-glx [libgl1]  13.0.6-1+b2
ii  libglib2.0-0              2.50.3-2
ii  libgtk2.0-0               2.24.31-2
ii  libjpeg62-turbo           1:1.5.1-2
ii  libnotify4                0.7.7-2
ii  libpango-1.0-0            1.40.5-1
ii  libpangocairo-1.0-0       1.40.5-1
ii  libpng16-16               1.6.28-1
ii  libsm6                    2:1.2.2-1+b3
ii  libstdc++6                6.3.0-18
ii  libtiff5                  4.0.8-2
ii  libwxbase3.0-0v5          3.0.2+dfsg-4
ii  libx11-6                  2:1.6.4-3
ii  libxxf86vm1               1:1.1.4-1+b2

libwxgtk3.0-0v5:amd64 recommends no packages.

libwxgtk3.0-0v5:amd64 suggests no packages.

-- no debconf information