Migrate qt

[jacquelinekay]

Fixes #67 by migrating from wxWidgets to qt. I tried to keep the translation faithful and not introduce new behavior or functionality.

This should also fix the many build failures on the Kinetic build farm for joint_state_publisher, so I'd like to get it merged soon.

Can someone who likes Python and Qt give a review? @ros/ros_team, @DLu, @ablasdel or whoever is available...

suggested testing (I could make a launchfile for anyone who's super lazy):

My workflow for this right now is to use shadow-fixed on a Xenial vm and only build the joint_state_publisher package, e.g. with catkin_make_isolated --only-pkg-with-deps.... That way the only dependencies I need to bring in are rospy, sensor_msgs. and python_qt_binding. But a few other things are needed for full testing (rosparam, rostopic).

where is a valid urdf with one or more non-fixed joints:

rosparam set robot_description -t <urdf>
rosrun joint_state_publisher joint_state_publisher 
(in another terminal)
rostopic echo "joint_states"

try clicking the buttons, moving the slider, viewing the rostopic output to see that the joint states are consistent, etc.

[wjwwood]

nitpick: alpha-ordering

[wjwwood]

#129

[wjwwood]

Code changes look good to me. Thanks for working on it!

It might be better for someone like @DLu (or someone else who uses it regularly) to give it a test drive. I'd have to have a look at how it behaves now to compare.

[jacquelinekay]

I just noticed a few bugs with the "randomize" button. Taking a look now.

[jacquelinekay]

ok, it's now free of all new bugs that I'm aware of :)

[jacquelinekay]

Forgot to push, I was referring to 7ebfc18

[jacquelinekay]

@wjwwood I talked to David and he said he was fine with us merging this if you think it looks ok, even though he hasn't taken a close look at it.

[wjwwood]

@jacquelinekay it's fine by me. So long as you think it works basically the same as before.

[jacquelinekay]

It works the same as far as I can tell; I'll deal with complaints as they come in.