Factory Preset Creator

d.healey

It's just occurred to me why I'm not using the built in preset browser, that will only work with the front end script so won't work with this script. I've just been trying to implement this script in a project and already I've run into a problem with it not restoring MIDI processors. One element that will likely vary between different sample sets for many instruments is the playable key range and the key-switch range and I'm currently adding that functionality with a separate script that keeps everything nice and modular but to do it with the built in preset system I'd lose the modularity. I'm again thinking it will just be easier to use a separate VSTi for each instrument although as we both know that won't be as convenient for the user.

Christoph Hart

Why not wrap it in a namespace and offer this in an external file that can be used from the frontend interface directly?

And changing the key colours dynamically when swapping sample maps should be no problem (just store the data in an array that correlates to the sample map list).

And if you want to change attributes of a MIDI processor, you could also directly set its attributes instead of restoring the whole thing.

d.healey

The namespace idea is good. The problem with storing the attributes of the MIDI processors is there are a lot of MIDI processors in some of my instruments, if there was a way to iterate through all of the attributes of each MIDI processor then that would be practical as it could then easily be automated in a loop but currently I'd have to do it manually for each processor and it would vary between projects.

Christoph Hart

Well, you can just create arrays with values that have the same length as the MIDI processor has attributes and go crazy with for loops:

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d.healey

Thanks for the code example. I think though that this still requires that I know in advance how many attributes each script processor has and I need to keep track of these manually. If we could do a for loop type thing to iterate over an arbitrary number of attributes then a few lines of code could handle any number of scripts with any number of attributes and the values of the attributes could be saved automatically into the user preset. Maybe I'm looking at this the wrong way though, I'll play around some more with your script example.

Christoph Hart

You need to know the number of attributes anyway when you create the preset data, or am I missing the point?

d.healey

Yes currently I would need to know the number of attributes, but if we had a function that could give us the number of attributes for a script then I could do something like this.

for (s in scripts)
{
	for (i = 0; i < s.numAttributes; i++)
	{
		presetData[i] = s.getAttribute(i);
	}
}

Christoph Hart

Ah yes, that makes sense (I thought you're creating those by hand, but for this approach, you'll need a getNumAttributes() method). I'll add this tomorrow.

d.healey

Thanks Christoph, should be very useful :)

d.healey

Could this getNumAttributes() function also work for other modules such as effects, modulators, and envelopes too?

Christoph Hart

Yes of course...

Christoph Hart

Alright, the changes are pushed to the repository.

d.healey

Excellent, building now!

d.healey

Seems to work perfectly, this is awesome. I'll be putting together a namespace version of this preset script soon which should be much more reliable and easier to use. Thanks again!

Christoph Hart

I noticed one caveat with this method: if you are restoring custom scripts by iterating over all attributes, it will ignore the saveInPreset property (so everything gets restored). This is because the index is just the order of declaration and if I skip non-saveInPreset parameters, there would be a mismatch between those numbers which will cause all types of problems.

However the saveInPreset property just makes sense on the main interface script anyway so it shouldn't be too much of a restriction.

Also note that you can only use float numbers in the method setAttribute(value). And if your module has a table or a sliderpack that needs to be restored, you're also out of luck and need to go back to exportState / restoreState.

BTW, the current implementation of restoreState for scripted modules loads the stored script and recompiles it. I could add another function (eg. restoreContent) which doesn't recompile things, but only restore the values of the preexisting script interface (which is much more lightweight and not causing issues with multithread locking).

d.healey

That would be very helpful and sounds like a very good companion function for the others we have.

Christoph Hart

Done. I've called them exportScriptControls / restoreScriptControls so that it's pretty clear that this works only for script modules.

d.healey

Brilliant, I'll add these to my new script now and it should be good to go...

d.healey

What other styleData do we have available for the preset browser? Is it possible to scale the window contents so if I make the preset browser smaller the text becomes smaller too?

Christoph Hart

Not yet, but the idea is to make this as flexible as needed. Currently you can only set the text / icon colour and the background colour:

Content.makeFrontInterface(600, 500);

  const var PresetBrowserTile = Content.addFloatingTile("PresetBrowserTile", 3, 2);
  
  // [JSON PresetBrowserTile]
  Content.setPropertiesFromJSON("PresetBrowserTile", {
    "width": 550,
    "height": 349,
    "parentComponent": "BrowsePanel"
  });
  // [/JSON PresetBrowserTile]
  
  const var presetBrowserData = 
  {
      "Type": "PresetBrowser",
      "ColourData":
      {
          "bgColour": "0xFF111111",
          "itemColour1": "0xFFBBE9FF"
      }
  };
  
  PresetBrowserTile.setContentData(presetBrowserData);

But the system is pretty extendable without too much effort, so anything that makes sense and is requested can be added (eg. font type, font colour, etc).

Factory Preset Creator

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