qtdragon mod

Thanks for the explanation, it really helped. I made indicators for e-stop, on/off, manual mode, and MDI. There was a slight issue with auto mode. I wanted to make indicators for auto mode, running programs, and pause. This is the only way I could do it:
Is this ok, or is there a more elegant way?

A new day, new challenges
I'm trying to configure MPG, added HAL pins, seems like everything worked out. But there is a problem I can't solve. When MPG is activated, it is still possible to change the increments of movement on the screen. It would be great if this widget could only display the selected increment without the ability to change it. And when MPG is inactive, it should be possible to change the value on the screen again. But I couldn't figure out how to do it.

Do you mean you are using HALUI to do MPG jogging?

No, I added my pins and linked them to jog_increments widget:[/code][/code][/code][/code][/code]

adding:
        self.w.jogincrements_linear.setEnabled(0)

to the end of
    def init_widgets(self):

Will make it not respond to screen clicks, but should still respond from HAL pin changes

Oh, that works great, thank you very much. I even made a small function that checks the active HAL pin against the widget every time the encoder signals, but your method is much more elegant.

New question: how to connect a button to a HAL pin? I want to add an MPG on/off button. I created a HAL pin in the handler file and created IndicatedPushButton. In the button properties, I added HAL.set_p(’mpg.mpg-enable’,’1’) to true_python_cmd_string. But I got an error:

  File "<string>", line 1
    HAL.set_p(’mpg.mpg-enable’,’1’)
              ^
SyntaxError: invalid character '’' (U+2019)

you could use a PushButton (under the linuxcnc-HAL heading)

It makes a hal pin.
Don't forget to set the property:
pin_name and pin_type

Finished the mod for qtdragon, which adds HAL pin encoders for all sliders, jog on all axes, increments, and MPG.

Add HAL pins for XYZABC axis jog:

qtdragon.jog.axis.x.plus
qtdragon.jog.axis.x.minus
qtdragon.jog.axis.y.plus
qtdragon.jog.axis.y.minus
qtdragon.jog.axis.z.plus
qtdragon.jog.axis.z.minus
qtdragon.jog.axis.a.plus
qtdragon.jog.axis.a.minus
qtdragon.jog.axis.b.plus
qtdragon.jog.axis.b.minus
qtdragon.jog.axis.c.plus
qtdragon.jog.axis.c.minus

For example, following pins are available for feedrate slider:

qtdragon.feed.override.count-enable = HAL_BIT, IN must be TRUE to enable feedrate counts
qtdragon.feed.override.counts = HAL_S32, IN encoder input for change feed override
qtdragon.feed.override.btn-100 = HAL_BIT, IN reset to feed override to 100%
qtdragon.feed.override.step = HAL_S32, IN increase/decrease step as a % of the maximum value

For sliders JOG_RATE and ANGULAR_JOG add pins to toggle between fast and slow jogging:

qtdragon.jog.override-linear.turtle = HAL_BIT IN decrease jogging in 10 times
qtdragon.jog.override-linear.turtle-led = HAL_BIT, OUT indicated slow mode is on
qtdragon.jog.override-angular.turtle = HAL_BIT IN decrease angular jogging in 10 times
qtdragon.jog.override-angular.turtle-led = HAL_BIT, OUT indicated angular jogging slow mode is on

Add HAL pins for MPG:

qtdragon.mpg.mpg-enable = HAL_BIT, IN must be TRUE to enable MPG counts

Jog increments pins, used first 3 INCREMENTS from ini file:
qtdragon.mpg.mpg-inc.1 = HAL_BIT, IN
qtdragon.mpg.mpg-inc.2 = HAL_BIT, IN
qtdragon.mpg.mpg-inc.3 = HAL_BIT, IN

For angular axis used next pins, also first 3 value from ini:
qtdragon.mpg.mpg-angular-inc.1 = HAL_BIT, IN
qtdragon.mpg.mpg-angular-inc.2 = HAL_BIT, IN
qtdragon.mpg.mpg-angular-inc.3 = HAL_BIT, IN

Pins for axis selected:
qtdragon.mpg.axis.x = HAL_BIT, IN
qtdragon.mpg.axis.y = HAL_BIT, IN
qtdragon.mpg.axis.z = HAL_BIT, IN
qtdragon.mpg.axis.a = HAL_BIT, IN
qtdragon.mpg.axis.b = HAL_BIT, IN
qtdragon.mpg.axis.c = HAL_BIT, IN

MPG encoder pin:

qtdragon.mpg.encoder-count = HAL_S32, IN MPG encoder input

Add a pins to cycle change increments:
qtdragon.mpg.mpg-inc.cycle = HAL_BIT, IN
qtdragon.mpg.mpg-angular-inc.cycle = HAL_BIT, IN

Put this file into <YOUR CONFIG FOLDER>/qtvcp/screens/qtdragon_hd/. Tested on qtdragon_hd, but should be working on qtdragon too.

I copied your file to the Screens folder, ran LCN, but no additional PINs appear in Show HAL. What am I doing wrong?

Did you try this?
Look for the heading : 2.8.2. Handler Patching - Subclassing Builtin Screens
linuxcnc.org/docs/stable/html/gui/qtvcp....cp:modifying-screens

Look for the direction on handler file placement.

Running linuxcnc from the terminal can give more info too.