the createHeadSprite script reveals some problems with GUI scripting

[elanhickler]

How do I make the continuous knob midi learnable?

[Christoph Hart]

Just set the "enableMidiLearn" property to true :)

[elanhickler]

How would I take that continous knob script and make that default true until someone adds enableMidiLearn as false?

[Christoph Hart]

inline function createHeadSprite(name, x, y)
{
    local widget = Content.addPanel(name, x, y);

    Content.setPropertiesFromJSON(name, {
      "width": 200,
      "height": 200,
      "enableMidiLearn": true, // <<== The magic happens here...
      "saveInPreset": true,
      "allowCallbacks": "Clicks, Hover & Dragging"
    });


[...]

or in your version:

inline function addContinuousKnob(name, x, y, json)
{
    local widget = Content.addPanel(name, x, y);

    Content.setPropertiesFromJSON(name, json);
`
    widget.set("enableMidiLearn", true); // important to do this after the JSON restoring...

[...]

[elanhickler]

waaaat, why wouldn't that override the json? by doing widget.set("enableMidiLearn", true); after Content.setPropertiesFromJSON(name, json);

[elanhickler]

Oh, it looks like we need Content.addPropertiesFromJSON(name, json); otherwise you can't do default values. ADD rather than SET/overwrite

[Christoph Hart]

IIRC setPropertiesFromJSON() already just overwrites the properties that are passed in.

[elanhickler]

That means I can't put a default value. Please consider my earlier suggestion. Content.addProperties

edit: or maybe there's a way to combine two jsons before going to setProperties?

[elanhickler]

Please tell me you are going to do something to allow default values. I don't have time to learn the C++ API right now and so I'd like to create a library of GUI widgets in javascript.

[elanhickler]

Is there a way to combine JSONs?

Edit: No that wouldn't work, that would overwrite copy JSON properties unless something could be done about that to allow the 1st or last of the properties to be used.

[Christoph Hart]

I think the functionality is already there:

const var Button = Content.addButton("Button", 10, 10);

Content.setPropertiesFromJSON("Button", {
  "enabled": false	
});


Content.setPropertiesFromJSON("Button", {
  "width": 160,
  "height": 30
});

This button will still be disabled because the second JSON doesn't overwrite the enabled property. This should allow you to set default values that won't be overwritten unless you explicitely add them in the JSON object.

[elanhickler]

ok great, works!

[elanhickler]

I tried doing "enableMidiLearn": "true" (with and without quotes on true) in the json but it didn't allow the continuous knob to be midi learnable, maybe because I don't have a right click callback setup? I wouldn't know how to set that up for midi learn.