File: MacroSlider.cpp

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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/>.
**/
//
//  MacroSlider.cpp
//  Bespoke
//
//  Created by Ryan Challinor on 12/19/15.
//
//

#include "MacroSlider.h"
#include "OpenFrameworksPort.h"
#include "Scale.h"
#include "ModularSynth.h"
#include "PatchCableSource.h"

MacroSlider::MacroSlider()
{
}

MacroSlider::~MacroSlider()
{
   for (auto mapping : mMappings)
      delete mapping;
}

void MacroSlider::CreateUIControls()
{
   IDrawableModule::CreateUIControls();
   mSlider = new FloatSlider(this, "input", 5, 4, 100, 15, &mValue, 0, 1);
}

void MacroSlider::DrawModule()
{
   if (Minimized() || IsVisible() == false)
      return;

   mSlider->Draw();

   for (auto mapping : mMappings)
      mapping->Draw();
}

void MacroSlider::PostRepatch(PatchCableSource* cableSource, bool fromUserClick)
{
   for (auto mapping : mMappings)
   {
      if (mapping->GetCableSource() == cableSource)
         mapping->UpdateControl();
   }
}

void MacroSlider::FloatSliderUpdated(FloatSlider* slider, float oldVal, double time)
{
}

void MacroSlider::SaveLayout(ofxJSONElement& moduleInfo)
{
   moduleInfo["num_mappings"] = (int)mMappings.size();
}

void MacroSlider::LoadLayout(const ofxJSONElement& moduleInfo)
{
   mModuleSaveData.LoadInt("num_mappings", moduleInfo, 3, 1, 100, K(isTextField));

   SetUpFromSaveData();
}

void MacroSlider::SetUpFromSaveData()
{
   int newNumMappings = mModuleSaveData.GetInt("num_mappings");
   if (mMappings.size() > newNumMappings)
   {
      for (int i = newNumMappings; i < mMappings.size(); ++i)
         delete mMappings[i];
   }
   mMappings.resize(newNumMappings);

   for (int i = 0; i < mMappings.size(); ++i)
   {
      if (mMappings[i] == nullptr)
      {
         Mapping* mapping = new Mapping(this, i);
         mapping->CreateUIControls();
         mMappings[i] = mapping;
      }
   }
}

void MacroSlider::SetOutputTarget(int index, IUIControl* target)
{
   mMappings[index]->GetCableSource()->SetTarget(target);
}

MacroSlider::Mapping::Mapping(MacroSlider* owner, int index)
: mOwner(owner)
, mIndex(index)
{
}

MacroSlider::Mapping::~Mapping()
{
   mOwner->GetOwningContainer()->DeleteCablesForControl(mMinSlider);
   mOwner->GetOwningContainer()->DeleteCablesForControl(mMaxSlider);
   mOwner->RemoveUIControl(mMinSlider);
   mOwner->RemoveUIControl(mMaxSlider);
   mTargetCable->ClearPatchCables();
   mOwner->RemovePatchCableSource(mTargetCable);
}

void MacroSlider::Mapping::CreateUIControls()
{
   mMinSlider = new FloatSlider(mOwner, ("start" + ofToString(mIndex + 1)).c_str(), 5, 25 + mIndex * kMappingSpacing, 100, 15, &mDummyMin, 0, 1);
   mMaxSlider = new FloatSlider(mOwner, ("end" + ofToString(mIndex + 1)).c_str(), 5, 39 + mIndex * kMappingSpacing, 100, 15, &mDummyMax, 0, 1);
   mTargetCable = new PatchCableSource(mOwner, kConnectionType_Modulator);
   mTargetCable->SetModulatorOwner(this);
   mTargetCable->SetManualPosition(110, 39 + mIndex * kMappingSpacing);
   mTargetCable->SetOverrideCableDir(ofVec2f(1, 0), PatchCableSource::Side::kRight);
   mOwner->AddPatchCableSource(mTargetCable);
}

void MacroSlider::Mapping::UpdateControl()
{
   OnModulatorRepatch();
}

float MacroSlider::Mapping::Value(int samplesIn)
{
   mOwner->ComputeSliders(samplesIn);
   return ofMap(mOwner->GetValue(), 0, 1, GetMin(), GetMax(), K(clamp));
}

void MacroSlider::Mapping::Draw()
{
   mMinSlider->Draw();
   mMaxSlider->Draw();

   if (GetSliderTarget())
   {
      float x, y, w, h;
      mMinSlider->GetPosition(x, y, K(local));
      mMinSlider->GetDimensions(w, h);

      int lineX = ofLerp(x, x + w, GetSliderTarget()->ValToPos(GetSliderTarget()->GetValue(), true));
      int lineY1 = y;
      int lineY2 = y + h * 2;
      ofPushStyle();
      ofSetColor(ofColor::green);
      ofLine(lineX, lineY1, lineX, lineY2);
      ofPopStyle();
   }
}