FObjectCx.h

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/*
 * Copyright (c) 2018 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 <base/source/fobject.h>
#include <pluginterfaces/vst/vsttypes.h>
#include <pongasoft/VST/Parameters.h>
 
namespace pongasoft {
namespace VST {
 
using namespace Steinberg::Vst;
using namespace Steinberg;

class FObjectCx : protected FObject
{
public:
  // Constructor
  explicit FObjectCx(FObject *iTarget);

  virtual void close();

  virtual void onTargetChange() {}

  ~FObjectCx() override { FObjectCx::close(); }
 
  // disabling copy
  FObjectCx(FObjectCx const &) = delete;
  FObjectCx& operator=(FObjectCx const &) = delete;
 
protected:
  void PLUGIN_API update(FUnknown *iChangedUnknown, Steinberg::int32 iMessage) SMTG_OVERRIDE;
 
protected:
  FObject *fTarget;
  bool fIsConnected;
};

class FObjectCxCallback : public FObjectCx
{
public:
  using ChangeCallback = std::function<void()>;
 
  // Constructor
  FObjectCxCallback(FObject *iTarget, ChangeCallback iChangeCallback);

  ~FObjectCxCallback() override { FObjectCxCallback::close(); }
 
  // close
  void close() override;
 
  // onTargetChange
  void onTargetChange() override;
 
  // disabling copy
  FObjectCxCallback(FObjectCxCallback const &) = delete;
  FObjectCxCallback& operator=(FObjectCxCallback const &) = delete;
 
protected:
  ChangeCallback fChangeCallback;
};
 
}
}