Parametric EQ callback when changing bands via GUI

oskarsh

Is it currently possible to get a callback whenever the user Drags on of the EQ Points? I would like to update the Knobs in my application based on the user input inside the EQ FloatingTile.

HiseSnippet 1461.3oc2X8zaSbDEeVaOnZSC+ohh5ANrJpB4zBQ1NDf1RaLwwl5BIwDGfJ0CvjcGaOJ6NiY2YCjhPhC8KApW5Widqe.3P+Hz68BGZq5sz2r+w6rNtgfKAUQN442ady76812+lzwSXQ88EdHihat6PJx38wc2kKGzX.gwQsWAYbB7pDeI0yLBZ4cGR78o1HCi72PAXTr.J7uWtzxDGB2hlBgP2Uvrn2h4xjonCqeSliSKhMcSlq1tuT81VBdCgiH.3SdbEzPh01j9z0HpskCiLNVSalT30URjTejQgkE161cf3Q7n8eWlOaKGpZQUTW3fhfaIbrULV8aTiALG6NI1sOBYf6j5ExG4ENCdUlMaDdp23TgBLS0P2eXjKK8xmgdU0oWEM5MAJYnQoBQT5z3tVdrgxTIJ9bbbaN7woGAb65TIZunb+QNbCArCtbdWx1zVdvhQZT9xUpbAyEqTYtuXlRyTBb99RycHdlcHdfKW5wdXyaa9klgQDy2mJa1qG0RVd1T4lMu8rQZy3NLN0rW.2RxDbSAeYB2tpJFQw.OgSYKg6PAG3xEfawIfN2LkdxLkLg+bDVDGSF2l9X39pX9IYnv7pSZ8d87oRyOMqD0wCWewLfv9ttD98VARZ4vCM4Bgs9zP1l3T.ipQBqJO6HFO6bpCIl2MHNNaAQhk2uIcPldsowzqdzZ5GnkW6UY40xX4kzr20DR557xyU5IkJV5okLGWTudSTV7Y4P8lnXU4AuCRwx7.2sndIlXxFgblrIh3+8DQ85DVQtFsMJ3s4L45Cowq2epJJ1eBIs4hYErUYXJ6IhSY65vrodHlsJecTHDJjzwk+piP+8RnC8ATaeGvu8hWbt5n6zdEhjnJfDSKfpCodRlxKXrBcGnZbT4jh3Un9aKECgKaTb.T9+Pw7GOpn8CH02MsB9h0eDyVNHE3A0GPY8GnU7+qq6JriueK1VTGjqdSjZ+hK4wZKqCsdF1k88Il4O87m+yK4GzqGC1EFaZuLnussCsivmoBNza9fdMLrZiYXubGcCag++ZXGWF2wJxvZ4HHRFu+lLH9VYdmDqCUUyDQeklI9ruKwDwFmOGBkXdXiuwXTPdTnyYwq3Q52m.YPsXNPujNDNXta0Oo0cwiAG3dpSkIoton6s2dOHKZsX3ETvggtF2F+Dnt3rixwZaO6maNVGmKn1QaU0MP1EqFtDZx6Hdz8Dda6CiMPAA8HN9zROEg1eyTnMtvNvgHy1aWECDKP4w0anpZZxguD6pOvy3M7Kb3Z3mNOxDqnbHo6owcXRqASlu4l.eUknNh4a73SyfilTHkrEvs91CbVoBGtRzuhQ4zma5jIE5ZD3sCs4CC4wIwYhjxPo0BbihmUcLLfb.jpvPkDG3e8meX8vRfw.O6Gu4ODBTKIE97a+6Ko.VH6Pwb6KMNvhI.W6ZmK7LtbRYb9rVg.WYbUt53.eVJvop2p0lM4pLxvO9F4OBbtnMDApxHqR.mmpHE3u5B4vVT3yLGp.LxsEuthZshdcogtQrAjouWrvpp0FwBqlHTOV5DQe+NNtKLbU3HngeAOa3Zy6Q1gZdCJm5oxJpd.uK4Wey+tj0sjv0uoGg6OT3m4f6RcYaBkl80AuiOL4M8ganRS0waHHdSTzKWpEXjSTmtDYfWX990cEAbYl76o66d1xdZ6eBYXENpdrza0Zm+2K0+l4scES3XWl6PGZS9NTGXfsPN9AvfD8HANxDzrA4qJ3hgCDblkdDvFpJa86S8z49DMH3YBvj8oHmo9FTGJQOZ9iqeKHJj3sZzfMSiun5q86bm32qOBGQWSUlo46Fsny+NTK5WCp71nKxai6vkX4ItuUzK1TwxuWHBX27v+cUEwqpVaVM4YZXbk4qnFpmceKKk69hf+Yx5TaJzYgoPmKME5r3TnykmBctxTnyUOPcTMitdfT3FkJB.cZF8lCizYmxi9G.NPFZ0

Thanks in advance!

d.healey

@oskarsh I believe you can do this with the broadcaster system.

Christoph Hart

// Create a broadcaster. If you intend to attach it to a component, it needs two parameters (conveniently named `component` and `event`)
const var eqWatcher = Engine.createBroadcaster({"component": undefined, "event": undefined});

// The EQ is named `FloatingTile1` obviously...
eqWatcher.attachToComponentMouseEvents("FloatingTile1", "All Callbacks");

eqWatcher.addListener("RefreshFunction", function(component, event)
{
    if(event.drag || event.clicked)
    {
        Console.print("Update the knobs here");
    }
});

ulrik

@Christoph-Hart great implementation, the broadcaster system, now we all wait for the video David will make, explaining all goodies :)

ulrik

@Christoph-Hart I guess will work on midi overlays as well?

Christoph Hart

@ulrik works on every component, but for MIDI players you might even attach it directly to changes of MIDI content.

const var MIDIPlayer1 = Synth.getMidiPlayer("MIDI Player1");

const var midiUpdater = Engine.createBroadcaster({"player": undefined});

// The broadcaster checks if any of the parameter has changed 
// and if it hasn't it will not fire the callbacks. In this case
// we don't want that behaviour because the parameter is always
// the same reference to the MIDI player so we need to set it to
// "Queue" mode which ensures that every message is being sent out.
midiUpdater.setEnableQueue(true);

// We can use the broadcaster object instead of a function for
// every API call that expects a callback.
MIDIPlayer1.setSequenceCallback(midiUpdater);

midiUpdater.addListener("Logger", function(player)
{
	var list = player.getEventList();

	for(ev in list)
		Console.print(ev.dump());
});

oskarsh

@d-healey @Christoph-Hart
Thanks for the quick answer and snippet this worked out as expected and I was able to get each Band Parameter on drag. Is there an additionally event.onScroll event that I can listen to, so that I am also able to update the Q parameter when user is scrolling?

Christoph Hart

@oskarsh no but it's a good idea to add that at some point.

A Former User

@Christoph-Hart said in Parametric EQ callback when changing bands via GUI:

// Create a broadcaster. If you intend to attach it to a component, it needs two parameters (conveniently named `component` and `event`)
const var eqWatcher = Engine.createBroadcaster({"component": undefined, "event": undefined});

// The EQ is named `FloatingTile1` obviously...
eqWatcher.attachToComponentMouseEvents("FloatingTile1", "All Callbacks");

eqWatcher.addListener("RefreshFunction", function(component, event)
{
    if(event.drag || event.clicked)
    {
        Console.print("Update the knobs here");
    }
});

Great example, Thank you!

Can we use this to detect which filter node (index) is dragged? For example if 3th node is dragged or clicked.

orange

@harris-rosendahl

I think you can get it with local LAF function of the Draggable Filter. In the drawFilterDragHandle function; obj.index value is the number of the selected node.

But if you try to show/ hide panels upon this, you'll probably need to disable adding new nodes or limit the node numbers. I don't know if it is possible.

laf.registerFunction("drawFilterDragHandle", function(g, obj)
{	
	// Defining the handle object with an ellipse
	g.setColour(0XFF7B8DFF);
	g.drawEllipse(obj.handle, 2);

	// Getting the selected node number
	if(obj.index == 0) 
	{


	}
	
	else if(obj.index == 1) 
	{


	}	
});

A Former User

@orange I got it thank you! You are a great helper.

But if you try to show/ hide panels upon this, you'll probably need to disable adding new nodes or limit the node numbers. I don't know if it is possible.

Can we limit the number of the nodes can be inserted in the draggable filter?
Also can we lock the number of the nodes (no delete & no add) in the draggable filter?

Please help @Christoph-Hart

So we can make something similar to this functionality with Hise. When the node is clicked, the dedicated panel will be opened:

alt text

lalalandsynth

@harris-rosendahl Yep limiting the nodes is something I am interested in as well.

DanH

@harris-rosendahl I did a bit of this in the source code. Removed menu items etc. I didn’t do limiting of nodes but I can point you to where I was editing when I’m back at my computer

Parametric EQ callback when changing bands via GUI

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