CustomControlView.h

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/*
 * Copyright (c) 2018-2019 pongasoft
 *
 * Licensed under the Apache License, Version 2.0 or the MIT license,
 * at your option. You may not use this file except in compliance with
 * one of these licenses. You may obtain copies of the licenses at:
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 * https://opensource.org/licenses/MIT
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 * @author Yan Pujante
 */
#pragma once
 
#include "CustomView.h"
 
namespace pongasoft::VST::GUI::Views {

class CustomControlView : public CustomView
{
public:
  explicit CustomControlView(const CRect &iSize) : CustomView(iSize) {}

  virtual void setControlTag (ParamID iTag) { fControlTag = iTag; };

  ParamID getControlTag () const { return fControlTag; }
 
public:
  CLASS_METHODS_NOCOPY(CustomControlView, CustomView)
 
protected:
  ParamID fControlTag{UNDEFINED_PARAM_ID};
 
public:
  class Creator : public CustomViewCreator<CustomControlView, CustomView>
  {
  public:
    explicit Creator(char const *iViewName = nullptr, char const *iDisplayName = nullptr) :
      CustomViewCreator(iViewName, iDisplayName)
    {
      registerTagAttribute("control-tag", &CustomControlView::getControlTag, &CustomControlView::setControlTag);
    }
  };
};

template<typename T>
class TCustomControlView : public CustomControlView
{
public:
  // TCustomControlView
  explicit TCustomControlView(const CRect &iSize) : CustomControlView(iSize) {}
 
public:
  CLASS_METHODS_NOCOPY(TCustomControlView, CustomControlView)
 
  
  T getControlValue() const;

  virtual void setControlValue(T const &iControlValue);

  void registerParameters() override;
 
protected:
  // the gui parameter tied to the control (handle vst/jmb or simple value)
  GUIOptionalParam<T> fControlParameter{};
 
public:
  using Creator = CustomViewCreator<TCustomControlView<T>, CustomControlView>;
};

using RawCustomControlView = TCustomControlView<ParamValue>;

class CustomDiscreteControlView : public TCustomControlView<int32>
{
public:
  // CustomDiscreteControlView
  explicit CustomDiscreteControlView(const CRect &iSize) : TCustomControlView<int32>(iSize) {}

  int32 getStepCount() const { return fStepCount; }

  void setStepCount(int32 iStepCount) { fStepCount = iStepCount; }
 
public:
  CLASS_METHODS_NOCOPY(CustomDiscreteControlView, TCustomControlView<int32>)
 
  
  void registerParameters() override;
 
protected:
  int32 fStepCount{-1};
 
public:
  class Creator : public CustomViewCreator<CustomDiscreteControlView, TCustomControlView<int32>>
  {
  public:
    explicit Creator(char const *iViewName = nullptr, char const *iDisplayName = nullptr) :
      CustomViewCreator(iViewName, iDisplayName)
    {
      registerIntegerAttribute<int32>("step-count", &CustomDiscreteControlView::getStepCount, &CustomDiscreteControlView::setStepCount);
    }
  };
};
 
//------------------------------------------------------------------------
// TCustomControlView<T>::getControlValue
//------------------------------------------------------------------------
template<typename T>
T TCustomControlView<T>::getControlValue() const
{
  return fControlParameter.getValue();
}
 
//------------------------------------------------------------------------
// TCustomControlView<T>::setControlValue
//------------------------------------------------------------------------
template<typename T>
void TCustomControlView<T>::setControlValue(T const &iControlValue)
{
  fControlParameter.update(iControlValue);
}
 
//------------------------------------------------------------------------
// TCustomControlView<T>::registerParameters
//------------------------------------------------------------------------
template<typename T>
void TCustomControlView<T>::registerParameters()
{
  CustomControlView::registerParameters();
  fControlParameter = registerOptionalParam<T>(getControlTag());
}
 
}