Add LFO and LFO Rate as parameters

Source/PluginProcessor.cpp

@@ -106,11 +106,14 @@ OscirenderAudioProcessor::OscirenderAudioProcessor()
     effects.insert(effects.end(), luaEffects.begin(), luaEffects.end());
 
     for (auto effect : effects) {
-        for (auto parameter : effect->parameters) {
+        for (auto effectParameter : effect->parameters) {
+            auto parameters = effectParameter->getParameters();
+            for (auto parameter : parameters) {
                 addParameter(parameter);
             }
         }
     }
+}
 
 OscirenderAudioProcessor::~OscirenderAudioProcessor() {}
 

Source/audio/Effect.cpp

@@ -55,16 +55,20 @@ void Effect::setPrecedence(int precedence) {
 
 void Effect::addListener(int index, juce::AudioProcessorParameter::Listener* listener) {
 	parameters[index]->addListener(listener);
+	parameters[index]->lfo->addListener(listener);
+	parameters[index]->lfoRate->addListener(listener);
 	if (enabled != nullptr) {
 		enabled->addListener(listener);
 	}
 }
 
 void Effect::removeListener(int index, juce::AudioProcessorParameter::Listener* listener) {
-    parameters[index]->removeListener(listener);
 	if (enabled != nullptr) {
 		enabled->removeListener(listener);
 	}
+	parameters[index]->lfoRate->removeListener(listener);
+	parameters[index]->lfo->removeListener(listener);
+    parameters[index]->removeListener(listener);
 }
 
 void Effect::markEnableable(bool enable) {

Source/audio/EffectParameter.h

@@ -2,18 +2,7 @@
 #include "../shape/Vector2.h"
 #include <JuceHeader.h>
 
-enum class LfoType : int {
+class FloatParameter : public juce::AudioProcessorParameter {
-	Static = 1,
-    Sine = 2,
-    Square = 3,
-	Seesaw = 4,
-    Triangle = 5,
-    Sawtooth = 6,
-    ReverseSawtooth = 7,
-    Noise = 8
-};
-
-class EffectParameter : public juce::AudioProcessorParameter {
 public:
 	juce::String name;
 	juce::String id;
@@ -21,17 +10,15 @@ public:
 	std::atomic<float> min = 0.0;
 	std::atomic<float> max = 1.0;
 	std::atomic<float> step = 0.001;
-	std::atomic<bool> smoothValueChange = true;
-	std::atomic<LfoType> lfoType = LfoType::Static;
 
-	EffectParameter(juce::String name, juce::String id, float value, float min, float max, float step = 0.001, bool smoothValueChange = true) : name(name), id(id), value(value), min(min), max(max), step(step), smoothValueChange(smoothValueChange) {}
+	FloatParameter(juce::String name, juce::String id, float value, float min, float max, float step = 0.001, juce::String label = "") : name(name), id(id), value(value), min(min), max(max), step(step), label(label) {}
 
 	juce::String getName(int maximumStringLength) const override {
 		return name.substring(0, maximumStringLength);
 	}
 
 	juce::String getLabel() const override {
-        return juce::String();
+		return label;
 	}
 
 	// returns value in range [0, 1]
@@ -115,4 +102,130 @@ public:
 private:
 	// value is not necessarily in the range [min, max] so effect applications may need to clip to a valid range
 	std::atomic<float> value = 0.0;
+	juce::String label;
+};
+
+class IntParameter : public juce::AudioProcessorParameter {
+public:
+	juce::String name;
+	juce::String id;
+
+	std::atomic<int> min = 0;
+	std::atomic<int> max = 10;
+
+	IntParameter(juce::String name, juce::String id, int value, int min, int max) : name(name), id(id), value(value), min(min), max(max) {}
+
+	juce::String getName(int maximumStringLength) const override {
+		return name.substring(0, maximumStringLength);
+	}
+
+	juce::String getLabel() const override {
+		return juce::String();
+	}
+
+	// returns value in range [0, 1]
+	float getNormalisedValue(float value) const {
+		// clip value to valid range
+		auto min = this->min.load();
+		auto max = this->max.load();
+		value = juce::jlimit(min, max, (int) value);
+		// normalize value to range [0, 1]
+		return (value - min) / (max - min);
+	}
+
+	float getUnnormalisedValue(float value) const {
+		value = juce::jlimit(0.0f, 1.0f, value);
+		auto min = this->min.load();
+		auto max = this->max.load();
+		return min + value * (max - min);
+	}
+
+	float getValue() const override {
+		return getNormalisedValue(value.load());
+	}
+
+	float getValueUnnormalised() const {
+		return value.load();
+	}
+
+	void setValue(float newValue) override {
+		value = getUnnormalisedValue(newValue);
+	}
+
+	void setValueUnnormalised(float newValue) {
+		value = newValue;
+	}
+
+	void setUnnormalisedValueNotifyingHost(float newValue) {
+		setValueNotifyingHost(getNormalisedValue(newValue));
+	}
+
+	float getDefaultValue() const override {
+		return 0;
+	}
+
+	int getNumSteps() const override {
+		return max.load() - min.load() + 1;
+	}
+
+	bool isDiscrete() const override {
+		return true;
+	}
+
+	bool isBoolean() const override {
+		return false;
+	}
+
+	bool isOrientationInverted() const override {
+		return false;
+	}
+
+	juce::String getText(float value, int maximumStringLength) const override {
+		auto string = juce::String((int) getUnnormalisedValue(value));
+		return string.substring(0, maximumStringLength);
+	}
+
+	float getValueForText(const juce::String& text) const override {
+		return getNormalisedValue(text.getIntValue());
+	}
+
+	bool isAutomatable() const override {
+		return true;
+	}
+
+	bool isMetaParameter() const override {
+		return false;
+	}
+
+	juce::AudioProcessorParameter::Category getCategory() const override {
+		return juce::AudioProcessorParameter::genericParameter;
+	}
+
+private:
+	// value is not necessarily in the range [min, max] so effect applications may need to clip to a valid range
+	std::atomic<int> value = 0;
+};
+
+enum class LfoType : int {
+	Static = 1,
+	Sine = 2,
+	Square = 3,
+	Seesaw = 4,
+	Triangle = 5,
+	Sawtooth = 6,
+	ReverseSawtooth = 7,
+	Noise = 8
+};
+
+class EffectParameter : public FloatParameter {
+public:
+	std::atomic<bool> smoothValueChange = true;
+	IntParameter* lfo = new IntParameter(name + " LFO", id + "Lfo", 1, 1, 8);
+	FloatParameter* lfoRate = new FloatParameter(name + " LFO Rate", id + "LfoRate", 1.0f, 0.0f, 100.0f, 0.1f, "Hz");
+
+	std::vector<juce::AudioProcessorParameter*> getParameters() {
+        return { this, lfo, lfoRate };
+    }
+
+	EffectParameter(juce::String name, juce::String id, float value, float min, float max, float step = 0.001, bool smoothValueChange = true) : FloatParameter(name, id, value, min, max, step), smoothValueChange(smoothValueChange) {}
 };

Source/components/EffectComponent.cpp

@@ -42,11 +42,11 @@ void EffectComponent::setupComponent() {
     bool enabled = effect.enabled == nullptr || effect.enabled->getValue();
     selected.setToggleState(enabled, juce::dontSendNotification);
 
-    lfo.setSelectedId(static_cast<int>(parameter->lfoType.load()), juce::dontSendNotification);
+    lfo.setSelectedId(parameter->lfo->getValueUnnormalised(), juce::dontSendNotification);
 
     lfo.onChange = [this]() {
         if (lfo.getSelectedId() != 0) {
-            effect.parameters[index]->lfoType = static_cast<LfoType>(lfo.getSelectedId());
+            effect.parameters[index]->lfo->setUnnormalisedValueNotifyingHost(lfo.getSelectedId());
         }
     };