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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2021 Ryan Challinor (contact: awwbees@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
/*
==============================================================================
ModulatorExpression.h
Created: 8 May 2021 5:36:59pm
Author: Ryan Challinor
==============================================================================
*/
#pragma once
#include "IModulator.h"
#include "IDrawableModule.h"
#include "Slider.h"
#include "ClickButton.h"
#include "TextEntry.h"
#include "exprtk.hpp"
class ModulatorExpression : public IDrawableModule, public IFloatSliderListener, public ITextEntryListener, public IModulator
{
public:
ModulatorExpression();
virtual ~ModulatorExpression();
static IDrawableModule* Create() { return new ModulatorExpression(); }
static bool AcceptsAudio() { return false; }
static bool AcceptsNotes() { return false; }
static bool AcceptsPulses() { return false; }
void CreateUIControls() override;
//IModulator
float Value(int samplesIn = 0) override;
bool Active() const override { return mEnabled; }
bool CanAdjustRange() const override { return false; }
void PostRepatch(PatchCableSource* cableSource, bool fromUserClick) override;
//IFloatSliderListener
void FloatSliderUpdated(FloatSlider* slider, float oldVal, double time) override {}
//ITextEntryListener
void TextEntryComplete(TextEntry* entry) override;
virtual void LoadLayout(const ofxJSONElement& moduleInfo) override;
virtual void SetUpFromSaveData() override;
bool IsEnabled() const override { return mEnabled; }
private:
//IDrawableModule
void DrawModule() override;
void GetModuleDimensions(float& w, float& h) override;
float mExpressionInput{ 0 };
FloatSlider* mExpressionInputSlider{ nullptr };
float mA{ 0 };
FloatSlider* mASlider{ nullptr };
float mB{ 0 };
FloatSlider* mBSlider{ nullptr };
float mC{ 0 };
FloatSlider* mCSlider{ nullptr };
float mD{ 0 };
FloatSlider* mDSlider{ nullptr };
float mE{ 0 };
FloatSlider* mESlider{ nullptr };
std::string mEntryString{ "x" };
TextEntry* mTextEntry{ nullptr };
exprtk::symbol_table<float> mSymbolTable;
exprtk::expression<float> mExpression;
exprtk::symbol_table<float> mSymbolTableDraw;
exprtk::expression<float> mExpressionDraw;
float mExpressionInputDraw{ 0 };
float mT{ 0 };
bool mExpressionValid{ false };
float mLastDrawMinOutput{ 0 };
float mLastDrawMaxOutput{ 1 };
};
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