From 9fbf91db06a6d4f4b5cd8bb45389a731bb86bf22 Mon Sep 17 00:00:00 2001
From: Richard <q@1bpm.net>
Date: Sun, 13 Apr 2025 18:48:02 +0100
Subject: initial

---
 site/app/twist/_unlive/transform.js | 1024 +++++++++++++++++++++++++++++++++++
 1 file changed, 1024 insertions(+)
 create mode 100644 site/app/twist/_unlive/transform.js

(limited to 'site/app/twist/_unlive/transform.js')

diff --git a/site/app/twist/_unlive/transform.js b/site/app/twist/_unlive/transform.js
new file mode 100644
index 0000000..3810359
--- /dev/null
+++ b/site/app/twist/_unlive/transform.js
@@ -0,0 +1,1024 @@
+var TransformParameter = function(instr, tDefinition, parent, transform, twist, onChange) {
+	var self = this;
+	var refreshable = false;
+	var changeFunc;
+	var initval = true;
+	var definition = {};
+	var randomiseAllowed = true;
+	var visible = true;
+	
+	if (parent) {
+		Object.assign(definition, tDefinition);
+	} else {
+		definition = tDefinition;
+	}
+	
+	if (definition.channel == "applymode") {
+		randomiseAllowed = false;
+	}
+	
+	if (definition.hasOwnProperty("preset")) {
+		var save = {};
+		for (var s of ["dfault", "name", "channel", "automatable", "description"]) {					
+			if (definition.hasOwnProperty(s)) {
+				save[s] = definition[s];
+			}
+		}
+			
+		if (definition.preset == "amp") {
+			Object.assign(definition, {name: "Amplitude", channel: "amp", description: "Amplitude", dfault: 1, min: 0, max: 1});
+		} else if (definition.preset == "pvslock") {
+			Object.assign(definition, {name: "Peak lock", channel: "pvslock", description: "Lock frequencies around peaks", step: 1, dfault: 0});					
+		} else if (definition.preset == "fftsize") {					
+			Object.assign(definition, {name: "FFT size", channel: "fftsize", description: "FFT size", options: [256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65535], dfault: 2, asvalue: true, automatable: false, lagHint: -1});						
+		} else if (definition.preset == "wave") {
+			Object.assign(definition, {name: "Wave", description: "Wave shape to use", options: ["Sine", "Square", "Saw", "Pulse", "Triangle"], dfault: 0, channel: "wave"});
+		} else if (definition.preset == "wintype") {
+			Object.assign(definition, {name: "Window type", channel: "wintype", description: "Window shape", options: ["Hanning", "Hamming", "Half sine"], dfault: 0, automatable: false});
+		
+		} else if (definition.preset == "instanceloop") {
+			Object.assign(definition, {name: "Cross instance loop type", channel: "otlooptype", description: "Loop type of other instance", options: ["None", "Forward", "Backward", "Ping-pong"], dfault: 0});
+		
+		} else if (definition.preset == "applymode") {
+			Object.assign(definition, {name: "Apply mode", channel: "applymode", absolutechannel: true, description: "Apply mode", automatable: false, options: ["Replace", "Mix", "Modulate", "Demodulate"], dfault: 0});
+		} else if (definition.preset == "note") {
+			var notes = {};
+			for (var i = 21; i < 128; i++) {
+				var v = twist.noteData.data.notes[i];
+				notes[v[0]] = v[1];
+			}
+			Object.assign(definition, {name: "Note", channel: "note", description: "Note to use", options: notes, dfault: 69, automatable: true});
+		} else if (definition.preset == "instance") {
+			var c = (!definition.channel) ? "ot" : definition.channel;
+			initval = false;
+			if (transform) transform.refreshable = true;
+			refreshable = true;
+			Object.assign(definition, {
+				name: "Instance", description: "Other wave to use", channel: instr + "_" + "instance",
+				options: twist.otherInstanceNames,
+				automatable: false
+			});
+			changeFunc = function(index) {
+				var s = twist.waveforms[index].selected;
+				app.setControlChannel(instr + "_" + "inststart", s[0]);
+				app.setControlChannel(instr + "_" + "instend", s[1]);
+				app.setControlChannel(instr + "_" + "instchan", s[2]);
+			};
+		}
+		if (save) {
+			Object.assign(definition, save);
+		}
+	} // if preset
+	
+	var type;
+							
+	if (definition.hasOwnProperty("conditions") && !parent) {
+		refreshable = true;
+		if (transform) transform.refreshable = refreshable;
+	}
+	
+	var channel = "";
+	if (!definition.hasOwnProperty("absolutechannel")) {
+		channel = (parent) ? parent.channel : instr + "_";
+	}
+	
+	if (definition.hasOwnProperty("channel")) {
+		channel += definition.channel;
+	} else {
+		channel += definition.name.toLowerCase();
+	}
+
+	var elContainer = $("<div />");
+	var elValueLabel = $("<div />");
+	var elValueInput;
+	var elModulations;
+	var elInput;
+	var elRow;
+	var elModSelect;
+	var automation = [];
+	
+	this.definition = definition;
+	this.modulation = null;
+	this.automation = null;
+	this.channel = channel;
+	this.modulationParameters = null;
+	
+	this.setPlaying = async function(state) {
+		if (definition.automatable || definition.hidden) return;
+		if (elValueInput) {
+			elValueInput.prop("disabled", state);
+			elValueInput.css("opacity", (state) ? 0.8 : 1);
+		}
+		
+		if (elInput) {
+			elInput.prop("disabled", state);
+			elInput.css("opacity", (state) ? 0.8 : 1);
+		}
+	};
+	
+	
+	if (!definition.hasOwnProperty("hidden")) {
+		definition.hidden = false;
+	}
+	
+	if (!definition.hasOwnProperty("step")) {
+		definition.step = 0.0000001;
+	}
+	
+	if (!definition.hasOwnProperty("min")) {
+		definition.min = 0;
+	}
+	
+	if (!definition.hasOwnProperty("max")) {
+		definition.max = 1;
+	}
+	
+	if (!definition.hasOwnProperty("fireChanges")) {
+		definition.fireChanges = true;
+	}
+	
+	if (!definition.hasOwnProperty("dfault")) {
+		definition.dfault = 1;
+	}
+	
+	if (parent) {
+		if (definition.hostrange) { 
+			var items = ["step", "min", "max", "options", "conditions", "hostrange"];
+			if (definition.dfault == "hostrangemin") {
+				definition.dfault = parent.definition.min;
+			} else if (definition.dfault == "hostrangemax") {
+				definition.dfault = parent.definition.max;
+			} else {
+				items.push("dfault");
+			}
+			for (let o of items) {
+				if (parent.definition.hasOwnProperty(o)) {
+					definition[o] = parent.definition[o];
+				}
+			}
+		} else if (definition.preset == "hostrangemin") {
+			definition.min = definition.max = definition.dfault = parent.definition.min;
+		} else if (definition.preset == "hostrangemax") {
+			definition.min = definition.max = definition.dfault = parent.definition.max;
+		}
+	}
+	
+	if (definition.hasOwnProperty("options")) {
+		type = "select";
+	} else if (definition.hasOwnProperty("type")) {
+		type = definition.type;
+	} else if (definition.min == 0 && definition.max == 1 && definition.step == 1) {
+		type = "checkbox";
+	} else {
+		type = "range";
+	}
+	
+	if (!definition.hasOwnProperty("automatable")) {
+		definition.automatable = ((type == "range" || type == "checkbox") && !parent);
+	}
+	
+	this.getLagHint = function() {
+		if (!definition.lagHint || !visible) return;
+		var lagHint;
+		if (typeof(definition.lagHint) == "object") {
+			lagHint = "setting <i>" + definition.name + "</i> to <i>"
+				+ definition.options[definition.lagHint.option] + "</i>";
+		} else {
+			lagHint = ((definition.lagHint < 0) ? "reducing" : "increasing")
+				+ " <i>" + definition.name + "</i>";
+		}
+		return lagHint;
+	};
+	
+	this.setRawValue = function(val) {
+		if (type == "checkbox") {
+			elInput[0].checked = (val == 0) ? false : true;
+		} else {
+			elInput.val(val);
+		}
+		elInput.trigger("change");
+	}
+	
+	this.getRawValue = function() {
+		return elInput.val();
+	}
+	
+	this.getValue = function() {
+		var val;
+		if (type == "range" || type == "string") {
+			val = elInput.val();
+		} else if (type == "select") {
+			val = (definition.asvalue) ? elInput.find("option:selected").text() : elInput.val();
+		} else if (type == "checkbox") {
+			val = (elInput[0].checked) ? 1 : 0;
+		}
+		return val;
+	};
+
+	this.reset = function() {
+		self.setRawValue(definition.dfault);
+		if (automationActive) disableAutomation();
+		if (self.automation) {
+			delete self.automation;
+			self.automation = null;
+		}
+		if (elSpline) {
+			elSpline.remove();
+			delete elSpline;
+		}
+		if (modulationShown) hideModulations();
+	};
+	
+	this.randomise = function() {
+		if (!randomiseAllowed) return;
+		var val;
+		if (definition.automatable) {
+			if (Math.random() >= 0.5) {
+				modButton.el.click();
+			}
+		}
+		
+		if (type == "select") {
+			val = Math.round(Math.random() * (definition.options.length - 1));
+		} else if (type == "range") {
+			val = (Math.random() * (definition.max - definition.min)) + definition.min;
+			if (definition.step == 1) {
+				val = Math.round(val);
+			} else {
+				val = Math.ceil((val - definition.min) / definition.step) * definition.step + definition.min;
+			}				
+		} else if (type = "checkbox") {
+			val = (Math.round(Math.random()));
+		}
+		self.setRawValue(val);
+		
+		if (self.modulationParameters) {
+			// 4 = just the non-crossadaptive ones
+			elModSelect.val(Math.round(Math.random() * 4)).trigger("change");
+			for (let mp in self.modulationParameters) {
+				self.modulationParameters[mp].randomise();
+			}
+		}
+	};
+	
+	
+	this.refresh = function() {
+		if (!refreshable || !transform) {
+			return;
+		}
+		if (definition.preset == "instance") {
+			createSelectOptions(elInput, twist.otherInstanceNames);
+		}
+		for (var k in definition.conditions) {
+			var c = definition.conditions[k];
+			var val = transform.parameters[transform.instr + "_" + c.channel].getValue();
+			if (
+				(c.operator == "eq" && val != c.value) ||
+				(c.operator == "neq" && val == c.value) ||
+				(c.operator == "lt" && val >= c.value) ||
+				(c.operator == "gt" && val <= c.value) ||
+				(c.operator == "le" && val > c.value) ||
+				(c.operator == "ge" && val < c.value)
+			) {
+				visible = false;
+				return elRow.hide();
+			}
+		}
+		visible = true;
+		elRow.show();
+	};
+	
+	function createSelectOptions(elSelect, options) {
+		var selected = elInput.val();
+		elSelect.empty();
+		for (var x in options) {
+			var opt = $("<option />").text(options[x]).val(x).appendTo(elSelect);
+			if (x == selected) {
+				opt.attr("selected", "1");
+				if (changeFunc) changeFunc(x);
+			}
+		}
+		definition.min = 0;
+		definition.max = (Array.isArray(options)) ? options.length - 1 : Object.keys(options).length - 1;
+	}
+	
+	function updateLabel() {
+		if (elValueInput) {
+			var val = self.getValue();
+			updateinput = false;
+			rounding = 10000;
+			val = Math.round(val * rounding) / rounding;
+			elValueInput.val(val);
+			updateinput = true;
+		}
+	}
+	
+	if (type == "select") {
+		elInput = $("<select />");
+		elInput.change(function(){
+			var val = self.getValue();
+			if (transform) transform.refresh();
+			if (definition.fireChanges) {
+				if (changeFunc) changeFunc(val);
+				app.setControlChannel(channel, val);
+			}
+			if (onChange) {
+				onChange(val);
+			}
+		});
+		
+		var options = (definition.hostrange && parent) ? parent.definitions.options : definition.options;
+		createSelectOptions(elInput, options);
+		
+	} else if (type == "string") {
+		elInput = $("<input />").change(function() {
+			if (transform) transform.refresh();
+			var val = self.getValue();
+			if (definition.fireChanges) {
+				app.setStringChannel(channel, val);
+			}
+			if (onChange) {
+				onChange(val);
+			}
+		});
+		
+	} else if (type == "checkbox") {
+		elInput = $("<input />").addClass("tp_checkbox").attr("type", "checkbox").on("change", function() {
+			if (transform) transform.refresh();
+			var val = self.getValue();
+			if (definition.fireChanges) {
+				app.setControlChannel(channel, val);
+			}
+			if (onChange) {
+				onChange(val);
+			}
+		});
+	} else if (type == "range") {
+		var updateinput = true;
+		var max = definition.max;
+		var min = definition.min;
+		var step = definition.step;
+		var dfault = definition.dfault;
+	
+		elInput = $("<input />").addClass("tp_slider").attr("type", "range").on("input", function() {
+			updateLabel();
+			if (definition.fireChanges) {
+				app.setControlChannel(channel, self.getValue());
+			}
+		}).change(function() {
+			updateLabel();
+			if (transform) transform.refresh();
+			var val = self.getValue();
+			if (definition.fireChanges) {
+				app.setControlChannel(channel, val);
+			}
+			if (onChange) {
+				onChange(val);
+			}
+		}).attr("min", min).attr("max", max).attr("step", step).val(dfault);
+		
+		elValueInput = $("<input />").attr("type", "number").attr("min", min).attr("max", max).attr("step", step).addClass("transparentinput").appendTo(elValueLabel).change(function() {
+			if (updateinput) {
+				elInput.val($(this).val()).trigger("change").trigger("input");
+			}
+		});
+	}
+	
+	elContainer.append(elInput);
+	if (initval) {
+		self.setRawValue(definition.dfault);
+		if (definition.fireChanges) {
+			elInput.trigger("change");
+		}
+	}
+	
+	
+	this.setDefault = function() {
+		elInput.val(definition.dfault).trigger("change"); 
+		//app.setControlChannel(channel, definition.dfault);
+	};
+	
+	this.remove = function() {
+		elRow.remove();
+		if (elSpline) {
+			elSpline.remove();
+		}
+		if (self.modulation) {
+			self.modulation = null;
+		}
+		if (self.automation) {
+			self.automation = null;
+		}
+	};
+	
+	this.getAutomationData = function(start, end) {
+		if (self.modulation) {
+			var m = twist.appdata.modulations[self.modulation];
+			return {type: "modulation", data: [m.instr, self.channel]};
+		} else if (automationActive && self.automation) {
+			return {type: "automation", channel: self.channel, data: self.automation.getLinsegData(start, end, twist.waveform.getRegion())};
+		}
+	};
+	
+	var resetButton = twirl.createIcon({
+		label: "Reset parameter",
+		icon: "reset",
+		click: function() {
+			self.reset();
+		}
+	});
+	
+	var randomiseButton = twirl.createIcon({
+		label: "Include in randomisation",
+		icon: "randomise",
+		click: function(obj) {						
+			randomiseAllowed = !randomiseAllowed;
+			var opacity = (randomiseAllowed) ? 1 : 0.4;
+			obj.el.css("opacity", opacity);
+		}
+	});
+	if (!randomiseAllowed) {
+		randomiseButton.el.css("opacity", 0.4);
+	}
+	
+	var elSpline;
+	var editAutomationButton = twirl.createIcon({
+		label: "Select",
+		icon: "show",
+		click: function() {
+			if (!transform) return;
+			if (elSpline) {
+				automationShown = true;
+				transform.showAutomation(definition.name, elSpline);
+			}
+		}
+	});
+	editAutomationButton.el.hide();
+	
+	var automationButton = twirl.createIcon({
+		label: "Automate",
+		label2: "Close automation",
+		icon: "automate",
+		icon2: "close",
+		click: function() {
+			if (elSpline && automationActive) {
+				disableAutomation();
+			} else {
+				showAutomation();
+			}
+		}
+	});
+	
+	var automationActive = false;
+	var automationShown = false;	
+	
+	this.hideAutomation = function() {
+		if (!transform) return;
+		automationShown = false;
+		if (elSpline) {
+			transform.hideAutomation(definition.name);
+		}
+	}
+	
+	function disableAutomation() {
+		if (!transform) return;
+		automationActive = false;
+		automationShown = false;
+		app.setControlChannel(channel, self.getValue());
+		elValueLabel.show();
+		elInput.show();
+		modButton.el.show();
+		automationButton.setState(true);
+		editAutomationButton.el.hide();
+		self.hideAutomation();
+	}
+	
+	this.redraw = function(region) {
+		if (self.automation) {
+			if (region && region[0] != null && region[1] != null) {
+				self.automation.setRange(region[0], region[1]);
+			} else {
+				self.automation.redraw();
+			}
+		}
+	};
+	
+	function showAutomation() {
+		if (!transform) return;
+		var colour = "rgb(" + (Math.round(Math.random() * 50) + 205) + ","
+			+ (Math.round(Math.random() * 50) + 205) + ","
+			+ (Math.round(Math.random() * 50) + 205) + ")";
+		automationShown = true;	
+		automationActive = true;
+		
+		if (!elSpline) {
+			elSpline = $("<div />").attr("id", "spl_" + channel).css({
+				position: "absolute", width: "100%", height: "100%", overflow: "hidden"
+			});
+		}
+		
+		transform.showAutomation(definition.name, elSpline);
+		
+		if (!self.automation) {
+			self.automation = new SplineEdit(
+				elSpline, colour, 
+				twist.waveform.getDuration,
+				[definition.min, definition.max, self.getValue(), definition.step],
+				definition.name
+			);
+		}
+		
+		elValueLabel.hide();
+		elInput.hide();
+		modButton.el.hide();
+		elSpline.show();
+		editAutomationButton.el.show(); //.css("background-color", colour);
+		automationButton.setState(false);
+	}
+	
+	
+	elModulations = $("<div />").addClass("tfv_container").hide().appendTo(elContainer);
+	var modulationShown = false;
+	
+	
+	var modButton = twirl.createIcon({
+		label: "Modulate",
+		label2: "Close modulation",
+		icon: "modulate",
+		icon2: "close",
+		click: function() {
+			if (elModulations && modulationShown) {
+				hideModulations();
+			} else {
+				showModulations();
+			}
+		}
+	});
+			
+	function hideModulations() {
+		app.setControlChannel(channel, self.getValue());
+		modulationShown = false;
+		elValueLabel.show();
+		elInput.show();
+		automationButton.el.show();
+		self.modulation = null;
+		modButton.setState(true);
+		if (elModulations) {
+			elModulations.hide();
+		}
+	}
+		
+	function showModulations() {
+		if (!transform) return;
+		modulationShown = true;
+		elValueLabel.hide();
+		elInput.hide();
+		automationButton.el.hide();
+		elModulations.show();
+		modButton.setState(false);
+		if (elModulations.children().length != 0) {
+			elModSelect.val(0).trigger("change");
+			return;
+		}
+		var tb = $("<tbody />");
+		function buildModulation(i) {
+			tb.empty();
+			self.modulationParameters = {};
+			self.modulation = i;
+			let m = twist.appdata.modulations[i];
+			for (let x of m.parameters) {
+				var tp = new TransformParameter(m.instr, x, self, transform, twist);
+				self.modulationParameters[tp.channel] = tp;
+				tb.append(tp.getElementRow(true)); // hmm modulate the modulation with false 
+			}
+		}
+		var selecttb = $("<tbody />").appendTo($("<table />)").appendTo(elModulations));
+		var row = $("<tr />").append($("<td />").text("Modulation type")).appendTo(selecttb);
+		var elConditionalOptions = [];
+		
+		twist.onInstanceChangeds.push(function(){
+			for (let o of elConditionalOptions) {
+				if (twist.waveforms.length == 1) {
+					o.prop("disabled", true);
+				} else {
+					o.prop("disabled", false);
+				}
+			}
+		});
+		
+		elModSelect = $("<select />").change(function() {
+			self.modulation = $(this).val();
+			buildModulation(self.modulation);
+		}).appendTo($("<td />").appendTo(row));
+		$("<table />").append(tb).appendTo(elModulations);
+		
+		for (let i in twist.appdata.modulations) {
+			var m = twist.appdata.modulations[i];
+			var o = $("<option />").text(m.name).val(i).appendTo(elModSelect);
+			if (m.inputs > 1) {
+				elConditionalOptions.push(o);
+				if (twist.waveforms.length == 1) {
+					o.prop("disabled", true);
+				}
+			}
+		}
+		elModSelect.val(0).trigger("change");
+	}
+	
+	this.getElementRow = function(nocontrols) {
+		if (definition.hidden) {
+			return null;
+		};
+		if (elRow) {
+			return elRow;
+		}
+		elRow = $("<tr />");	
+		var name = $("<td />").addClass("tfv_cell_text").text(definition.name).appendTo(elRow);
+		if (definition.description) {
+			name.on("mouseover", function(event){
+				twirl.tooltip.show(event, definition.description);
+			}).on("mouseout", function(){
+				twirl.tooltip.hide();
+			});
+		}
+		
+		$("<td />").addClass("tfv_cell").append(elContainer).appendTo(elRow);
+		$("<td />").addClass("tfv_cellfixed").append(elValueLabel).appendTo(elRow);
+		if (!nocontrols) {						
+			for (let b of [resetButton, randomiseButton]) $("<td />").addClass("tfv_cell_plainbg").append(b.el).appendTo(elRow);
+			
+			if (definition.automatable) {
+				for (let b of [automationButton, editAutomationButton, modButton]) $("<td />").addClass("tfv_cell_plainbg").append(b.el).appendTo(elRow);
+			}
+
+		}
+		return elRow;
+	};
+};
+
+
+
+function getTransformContainer(nameOrElement) {
+	var el = $("<div />").addClass("tfv_header");
+	if (typeof(nameOrElement) == "string") {
+		el.text(nameOrElement);
+	} else {
+		el.append(nameOrElement);
+	}
+	return $("<div />").addClass("tfv_container").append(el);
+}
+
+var Transform = function(target, def, twist) {
+	var self = this;
+	var elTb;
+	var pAddOdd = true;
+	this.instr = def.instr;
+	this.refreshable = false;
+	var elSplineOverlay;
+	var hideAutomationButton;
+	this.parameters = {};
+	
+	var automationEls = {};
+	this.showAutomation = function(name, el) {
+		if (!elSplineOverlay) {
+			elSplineOverlay = $("<div />").addClass("spline_overlay").appendTo($("#twist_splines"));
+		}
+		for (var e in automationEls) {
+			automationEls[e].css({"z-index": 23, opacity: 0.4});
+		}
+		if (!el) {
+			el = automationEls[name];
+		} else {
+			automationEls[name] = el;
+		}
+		el.css({"z-index": 24, opacity: 1}).show();
+		hideAutomationButton.el.show();
+		elSplineOverlay.show();
+		if (el.parents(elSplineOverlay).length == 0) {
+			elSplineOverlay.append(el);
+		}
+		$("#twist_splines").show();
+	};
+	
+	this.getLagHints = function() {
+		var lagHints = [];
+		for (let i in self.parameters) {
+			var p = self.parameters[i];
+			var lagHint = p.getLagHint();
+			if (lagHint) lagHints.push(lagHint);
+		}
+		var lagHintHtml;
+		if (lagHints.length != 0) {
+			lagHintHtml = "Try ";
+			for (var i in lagHints) {
+				lagHintHtml += lagHints[i];
+				if (i != lagHints.length - 1) {
+					lagHintHtml += ((i == lagHints.length - 2) ? " or " : ", ");
+				}
+			}
+		}
+		return lagHintHtml;
+	};
+	
+	this.hideAutomation = function(name) {
+		if (automationEls[name]) {
+			automationEls[name].hide();
+			delete automationEls[name];
+			if (Object.keys(automationEls).length == 0) {
+				elSplineOverlay.hide();
+				hideAutomationButton.el.hide();
+				$("#twist_splines").hide();
+			}
+		}
+	}
+	
+	this.hideAllAutomation = function(name) {
+		for (let p in self.parameters) {
+			self.parameters[p].hideAutomation();
+		}				
+	};
+	
+	this.redraw = function(region) {
+		for (let p in self.parameters) {
+			self.parameters[p].redraw(region);
+		}
+	};
+	
+	this.refresh = function() {
+		if (!self.refreshable) {
+			return;
+		}
+		for (var k in self.parameters) {
+			self.parameters[k].refresh();
+		}
+	};
+	
+	this.getAutomationData = function(start, end) {
+		var automations = [];
+		for (var k in self.parameters) {
+			var data = self.parameters[k].getAutomationData(start, end);
+			if (data) {
+				automations.push(data);
+			}
+		}
+		return automations;
+	};
+	
+	this.getState = async function() {
+		var data = {instr: def.instr, channels: {}};
+		var value;
+		for (let chan in self.parameters) {
+			value = await app.getControlChannel(chan);
+			data.channels[chan] = value;
+			if (self.parameters[chan].modulationParameters) {
+				for (let modchan in self.parameters[chan].modulationParameters) {
+					value = await app.getControlChannel(modchan);
+					data.channels[modchan] = value;
+				}
+			}
+		}
+		return data;
+	};
+	
+	
+	this.reset = function() {
+		for (let p in self.parameters) {
+			self.parameters[p].reset();
+		}
+	};
+	
+	this.randomise = function() {
+		for (let p in self.parameters) {
+			self.parameters[p].randomise();
+			if (self.parameters[p].modulationParameters) {
+				for (let mp in self.parameters[p].modulationParameters) {
+					self.parameters[p].modulationParameters[mp].randomise();
+				}
+			}
+		}
+	};
+	
+	this.saveState = function() {
+		var state = {};
+		for (let p in self.parameters) {
+			state[p] = self.parameters[p].getRawValue();
+		}
+		if (!twist.storage.transforms) {
+			twist.storage.transforms = {};
+		}
+		twist.storage.transforms[def.instr] = state;
+		twist.saveStorage();
+	};
+	
+	this.remove = function() {
+		self.saveState();
+		for (let p in self.parameters) {
+			self.parameters[p].remove();
+		}
+		if (elSplineOverlay) {
+			elSplineOverlay.remove();
+		}
+	}
+	
+	this.removeParameter = function(channel) {
+		if (self.parameters.hasOwnProperty(channel)) {
+			self.parameters[channel].remove();
+			delete self.parameters[channel]
+		}
+	};
+	
+	function addParameter(pdef) {
+		var tp = new TransformParameter(def.instr, pdef, null, self, twist);
+		self.parameters[tp.channel] = tp;
+		var er = tp.getElementRow();
+		if (er) {
+			elTb.append(er.addClass("tfv_row_" + ((pAddOdd) ? "odd" : "even")));
+			pAddOdd = !pAddOdd;
+		};
+	};
+	
+	this.setPlaying = function(state) {
+		for (let i in self.parameters) {
+			self.parameters[i].setPlaying(state);
+		}
+	};
+	
+	function namePrepend(name, pdef) {
+		if (!pdef.hasOwnProperty("nameprepend")) return name;
+		name = pdef.nameprepend + " " + name;
+		return name[0] + name.substr(1).toLowerCase()
+	}
+	
+	this.addParameter = function(pdef) {
+		if (!pdef.hasOwnProperty("presetgroup")) {
+			return addParameter(pdef);
+		}
+		var name;
+		var conditions;
+		var groupParameters = [];
+		var channelPrepend = (pdef.hasOwnProperty("channelprepend")) ? pdef.channelprepend : "";
+		
+		if (pdef.presetgroup == "pvsynth") {
+			var dfaultMode = (pdef.hasOwnProperty("dfault")) ? pdef.dfault : 0;
+			conditions = [
+				{channel: channelPrepend + "pvresmode", operator: "eq", value: 1}
+			];
+			groupParameters = [
+				{name: namePrepend("Resynth mode", pdef), channel: channelPrepend + "pvresmode", description: "Type of FFT resynthesis used", dfault: dfaultMode, options: ["Overlap-add", "Additive"], automatable: false},
+				{name: namePrepend("Oscillator spread", pdef), channel: channelPrepend + "pvaoscnum", description: "Number of oscillators used", automatable: false, conditions: conditions, lagHint: -1},
+				{name: namePrepend("Frequency modulation", pdef), channel: channelPrepend + "pvafreqmod", description: "Frequency modulation", dfault: 1, min: 0.01, max: 2, conditions: conditions},
+				{name: namePrepend("Oscillator offset", pdef), channel: channelPrepend + "pvabinoffset", description: "Oscillator bin offset", automatable: false, conditions: conditions, dfault: 0, lagHint: 1},
+				{name: namePrepend("Oscillator increment", pdef), channel: channelPrepend + "pvabinincr", description: "Oscillator bin increment", min: 1, max: 8, dfault: 1, step: 1, automatable: false, conditions: conditions, lagHint: -1}
+			];
+		} else if (pdef.presetgroup == "pvanal") {
+			groupParameters = [
+				{preset: "fftsize"},
+				{preset: "pvslock"},
+				{name: "Overlap decimation", min: 4, max: 16, step: 1, dfault: 4, channel: "pvsdecimation", automatable: false, lagHint: -1},
+				{name: "Window size multiplier", min: 1, max: 4, dfaut: 1, step :1, channel: "pvswinsizem", automatable: false, lagHint: -1},
+				{name: "Window type", options: ["Hamming", "Von Hann", "Kaiser"], dfault: 1, automatable: false}
+			];
+		} else if (pdef.presetgroup == "pitchscale") {
+			groupParameters = [
+				{name: namePrepend("Pitch scale mode", pdef), channel: channelPrepend + "pitchscalemode", options: ["Ratio", "Semitone"], dfault: 0},
+				{name: namePrepend("Pitch scale", pdef), channel: channelPrepend + "pitchscale", description: "Pitch scaling", dfault: 1, min: 0.01, max: 10, conditions: [{channel: channelPrepend + "pitchscalemode", operator: "eq", value: 0}]},
+				{name: namePrepend("Semitones", pdef), channel: channelPrepend + "pitchsemitones", min: -24, max: 24, step: 1, dfault: 0, conditions: [{channel: channelPrepend + "pitchscalemode", operator: "eq", value: 1}]}
+			];
+		
+		} else if (pdef.presetgroup == "notefreq") {
+			var base = {name: namePrepend("Frequency mode", pdef), channel: channelPrepend + "freqmode", description: "Frequency mode", options: ["Frequency", "Note"], dfault: 0};
+			if (pdef.hasOwnProperty("conditions")) {
+				base["conditions"] = pdef.conditions;
+			}
+			groupParameters.push(base);
+			
+			conditions = [{channel: channelPrepend + "freqmode", operator: "eq", value: 0}];
+			if (pdef.hasOwnProperty("conditions")) {
+				Array.prototype.push.apply(conditions, pdef.conditions);
+			}
+			
+			var dfaultFreq = (pdef.hasOwnProperty("dfault")) ? pdef.dfault : 440;
+			
+			var freq = {name: namePrepend("Frequency", pdef), channel: channelPrepend + "freq", description: "Frequency", dfault: dfaultFreq, min: 20, max: 22000, conditions: conditions}
+			if (pdef.hasOwnProperty("lagHint")) {
+				freq.lagHint = pdef.lagHint;
+			}
+			groupParameters.push(freq);
+			
+			conditions = [{channel: channelPrepend + "freqmode", operator: "eq", value: 1}];
+			if (pdef.hasOwnProperty("conditions")) {
+				Array.prototype.push.apply(conditions, pdef.conditions);
+			}
+			var note = {preset: "note", name: namePrepend("Note", pdef), conditions: conditions, channel: channelPrepend + "note"};
+			if (pdef.hasOwnProperty("lagHint")) {
+				note.lagHint = pdef.lagHint;
+			}
+			groupParameters.push(note);
+			
+		}
+		for (let gp of groupParameters) {
+			if (pdef.hasOwnProperty("automatable")) {
+				gp.automatable = pdef.automatable;
+			}
+			addParameter(gp);
+		}
+	}
+	
+	function build() {
+		target.empty();
+		var elContainer = $("<div />").addClass("tfv_container").appendTo(target);
+		hideAutomationButton = twirl.createIcon({label: "Hide automation", icon: "hide", click: function() {
+			self.hideAllAutomation();
+		}});
+		hideAutomationButton.el.hide();
+		
+		app.setControlChannel("applymode", 0); // not all transforms will set this
+		var el = $("<div />");
+		var header = $("<div />").text(def.name).appendTo(el);
+		
+		if (def.description) {
+			header.on("mouseover", function(event){
+				twirl.tooltip.show(event, def.description);
+			}).on("mouseout", function(){
+				twirl.tooltip.hide();
+			});
+		}
+							
+		$("<div />").css({"float": "right"}).append(
+			hideAutomationButton.el
+		).append(
+			twirl.createIcon({
+				label: "Randomise parameters",
+				icon: "randomise",
+				click: function() {
+					self.randomise();
+				}
+			}).el
+		).append(
+			twirl.createIcon({
+				label: "Reset parameters",
+				icon: "reset",
+				click: function() {
+					self.reset();
+				}
+			}).el
+		).appendTo(el);
+		
+		$("<div />").addClass("tfv_container").append(
+			$("<div />").addClass("tfv_header").append(el)
+		).appendTo(elContainer);
+		
+		//getTransformContainer(el).appendTo(elContainer);					
+		var tbl = $("<table />").appendTo(elContainer);
+		elTb = $("<tbody />").appendTo(tbl);
+		
+		for (let p of def.parameters) {
+			self.addParameter(p);
+		}
+		
+		if (twist.storage && twist.storage.transforms && twist.storage.transforms[def.instr]) {
+			var state = twist.storage.transforms[def.instr];
+			for (var p in state) {
+				self.parameters[p].setRawValue(state[p]);
+			}
+		}					
+		self.refresh();
+	}
+	build();
+};
+
+var TransformsTreeView = function(options, twist) {
+	var self = this;
+	var elTarget = $("#" + options.target);
+	
+	
+	function recurse(items, descended) {
+		items = (items) ? items : options.items;
+		var ul = $("<ul />").css({"border-bottom": "1px solid #878787", "padding-inline-start": 10}).addClass((descended) ? "nested" : "treelist");
+		
+		for (let k in items) {
+			var li = $("<li />");
+			if (items[k].hasOwnProperty("contents")) {
+				$("<span />").addClass("caret").text(items[k].name).click(function() {
+					$(this).parent().children(".nested").toggleClass("active");
+					$(this).toggleClass("caret-down");
+				}).appendTo(li);
+				var subitems = recurse(items[k].contents, true);
+				li.append(subitems);
+
+			} else {
+				li.text(items[k].name).css("cursor", "pointer").click(function(){
+					if (twist.currentTransform) {
+						twist.currentTransform.remove();
+					}
+					twist.currentTransform = new Transform($("#twist_controls"), items[k], twist);
+				});
+			}
+			ul.append(li);
+		}
+		elTarget.append(ul);
+		return ul;
+	}
+	
+	elTarget.append(recurse());
+};
\ No newline at end of file
-- 
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