Pause / Unpause LINEGRAPHWIDGET

[MatthewScott967]

I have a custom screen in Telemetry Viewer that has a LINEGRAPHWIDGET and it is working great. I would like to do two things, and I can not find even a starting point. Please, any help on how to accomplish the following would be greatly appreciated...

1. Have a trigger (target packet item) that will pause and unpauses the line graph
2. Have button that pauses / unpauses the graph

Clearly this can be done because Telemetry Grapher has a start / stop - pause / unpause functionality, I just can't figure out how to get this going on my Telemetry Viewer Screen.

Thank you for pointers / starting places... Anything!

Cheers.

[jmthomas]

I'll assume this is COSMOS 5. If you look at the Demo we create a BigWidget and HelloworldWidget (note the WIDGET BIG and WIDGET HELLOWORLD in the plugin.txt). So you should create your own new PausegraphWidget (similar to the demo) and add a button which can change the graph's state variable to pause.

[MatthewScott967]

Yes, COSMOS 5, sorry I didn't mention that.

Thank you, this got me pointed in a direction so that I could implement no. 2 (use a button) from my question

In a custom graph widget I added the following:

methods: {
    getState: function() {
      let graphRef = "graph" + this.id;
      return this.$refs[graphRef].state;
    },
    setState: function(new_state) {
      let graphRef = "graph" + this.id;
      this.$refs[graphRef].state = new_state;
    },
  },

and then to the screen added a button

BUTTON 'Pause' "screen.get_named_widget('GRAPH_1').getState() === 'start' ?
    screen.get_named_widget('GRAPH_1').setState('pause') :  
    screen.get_named_widget('GRAPH_1').setState('start')" 

Now that I have that, I am thinking that the right thing to do for method 1 (triggering on a signal) is to make a custom widget, that works just like the button, but instead of OnClick, I will trigger on a signal value from the telemetry stream.

Thank you for the nudge that got me over the hump.

(Unrelated, but don't feel it is important enough for a full topic)

Any hint on how to change the text of the button after it is pressed? Pause -> Unpause & Unpause -> Pause

Thank you again.

[jmthomas]

Our ButtonWidget just sets the text according to what was passed in. You'd need to do something like pass in an array of states that you could switch to if set or unset.