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How do I intercept rqt plugin mouse events?

asked 2013-01-20 09:59:25 -0600

updated 2014-01-28 17:14:55 -0600

ngrennan gravatar image

I'm trying to create a virtual joystick plugin for rqt in Python. When I wrote the stand-alone python node, I just made my main window inherit QtGui.QMainWindow, then I could simply override mousePressEvent.

When I make an rqt plugin, the mousePressEvent doesn't work, I assume because there's nothing to override in the Plugin class.

Is there another way to do this? Can I connect some QT signal?

Thanks, -Jon

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answered 2013-01-20 12:21:51 -0600

130s gravatar image

Yes there is a standard way.

Taking rqt python plugin tutorial as an example, you can replace QWidget with your main python modoule, give it to qt_gui.PluginContext.add_widget method.

A little more about concept, rqt framework provides:

  1. An "interface" between your own python components and rqt itself.

  2. Standard procedures for GUI (shutdown etc.)

  3. Nice features for GUI design (ex. loadUi that enables to use UI definition in xml (.ui file)

This means you can easily utilize your own stuff without even modifying. You just add a class that extends qt_gui.plugin.Plugin where you define #1 & #2 above. Currently detailed API document doesn't exist but API Review might give you more insight.

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Excellent! That was exactly the tip I needed!

Jon Stephan gravatar image Jon Stephan  ( 2013-01-20 12:47:10 -0600 )edit

answered 2013-06-10 22:50:26 -0600

sonia gravatar image

How can I modify rxbag pluging , and how can i make it a new plugin? Dont know where to start with, what files i have to modify etc working in fuerte.

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Please do not ask new questions; that's not how this forum works. Instead, if you open a new question, I'm happy to answer that.

130s gravatar image 130s  ( 2013-06-10 22:54:31 -0600 )edit

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Asked: 2013-01-20 09:59:25 -0600

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Last updated: Jun 10 '13