ViewCxMgr.h

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/*
 * Copyright (c) 2018 pongasoft
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 <unordered_map>
#include <vector>
#include <pongasoft/VST/FObjectCx.h>
#include <vstgui4/vstgui/lib/iviewlistener.h>
#include <pongasoft/VST/GUI/Params/GUIJmbParameter.h>
#include <pongasoft/VST/GUI/Params/GUIVstParameter.h>
#include <pongasoft/VST/GUI/Params/GUIParamCxAware.h>

namespace pongasoft {
namespace VST {
namespace GUI {

using namespace VSTGUI;
using namespace Params;

class ViewCxMgr : private IViewListenerAdapter
{
public:
  template<typename TView>
  ViewGUIParamCxAware<TView> *registerConnectionFor(TView *iView, GUIState *iGUIState);

  void closeAll();

private:
  void viewWillDelete(CView *iView) override;

private:
  std::unordered_map<CView *, std::unique_ptr<GUIParamCxAware>> fViewConnections{};
};

//------------------------------------------------------------------------
// ViewCxMgr::registerConnectionFor
//------------------------------------------------------------------------
template<typename TView>
ViewGUIParamCxAware<TView> *ViewCxMgr::registerConnectionFor(TView *iView, GUIState *iGUIState)
{
  if(iView == nullptr)
    return nullptr;

  auto iter = fViewConnections.find(iView);

  if(iter == fViewConnections.end())
  {
    iView->registerViewListener(this);
    fViewConnections[iView] = std::make_unique<ViewGUIParamCxAware<TView>>(iView);
    fViewConnections[iView]->initState(iGUIState);
  }

  return static_cast<ViewGUIParamCxAware<TView> *>(fViewConnections[iView].get());
}


}
}
}