Gremlin

Yes it seems adding the try statements in about three places works.
I will test more before pushing

ArcEye wrote:

gremlin-run takes command line arguments and requires a running instance of Linuxcnc.

Without either it will abort with errors, is that what you are seeing?

It will run from the command line quite happily when these requirements are met.
I am currently trying to find a way of embedding it inside my Qt GUI, don't want to have to re-implement it if I can avoid it

regards

Could you use xembed:
doc.qt.digia.com/qt/qx11embedcontainer.html

To build a Qt wrapper around gremlin?
The same technique would allow gladvecp panels, webcam alignment etc.

Chris M

Could you use xembed:
doc.qt.digia.com/qt/qx11embedcontainer.html

To build a Qt wrapper around gremlin?

Hi Chris

Yes that is exactly what I am going to try.
I have used it very successfully in the past with well behaved X11 apps like mplayer.

It does not always work with other apps however, sometimes just doesn't display and others despite having focus, keyboard and mouse events don't get through.

regards

Et voila!



Now I need to clean it all up, need to be able to spawn gremlin-run, after linuxcnc starts and calls my GUI and the GUI has rendered itself.
(I am currently testing by just launching it from the commandline after my GUI and the embedding is triggered by the Preview tab being clicked)

Good thing is that the mouse works properly on it, I can spin the axes around, pan in and out etc

regards

With Michael, Chris, Pavel , Jeff et al programming in python, you are probably learning the right language.

I am just doing this out of sheer perversity, to prove you can do it in Qt!

great!

all's left to do is push qtvcp, cook up a few HAL widgets, document it and we're heading for 21st century GUIs

-m

all's left to do is push qtvcp, cook up a few HAL widgets, document it and we're heading for 21st century GUIs

A little bit more than that to do at present

Currently having problems getting the Gremlin widget to draw a preview.
It follows a plot OK but despite ensuring that emcStatus->task.file is set, it is not loading a preview or refreshing when a file is opened.

Appears to be falling over on paths, after the call to self.load_preview(filename, canon, unitcode, initcode) it is throwing an error trying to open linuxcnc.var, which is in the struct canon.parameter_file, so never gets to draw the preview.

Have built a RIP to do all the testing from, so hopefully any path problems will be resolved

It looks as though HAL_gremlin gets it's own reference to linuxcnc's file and passes it to gremlin.

Well actually it connects it with a 'file-loaded' signal but the premise is the same.

That screen shot looks nice! clean design. I bet the response is snappy being written in C+

Chris M