varsmodel.h

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/*! @brief This file have the interface for VarsModel class.
    @file varsmodel.h
    @author Alvaro Denis <denisacostaq@gmail.com>
    @date 7/27/2019

    @copyright
    @attention <h1><center><strong>COPYRIGHT &copy; 2019 </strong>
    [<strong>denisacostaq</strong>][denisacostaq-URL].
    All rights reserved.</center></h1>
    @attention This file is part of [<strong>DAQs</strong>][DAQs-URL].

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
    - 1. Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    - 2. Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
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      may be used to endorse or promote products derived from this software
      without specific prior written permission.

    THIS PRODUCT IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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    THIS PRODUCT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    [denisacostaq-URL]: https://about.me/denisacostaq "Alvaro Denis Acosta"
    [DAQs-URL]: https://github.com/denisacostaq/DAQs "DAQs"
 */
#ifndef HMI_MODEL_VARSMODEL_H
#define HMI_MODEL_VARSMODEL_H

class Client;

#include <vector>

#include <QtCore/QDebug>
#include <QtCore/QObject>
#include <QtQml/QQmlListProperty>

#include "src/hmi/model/varmodel.h"

class VarsModel : public QObject {
  Q_OBJECT
 public:
  Q_PROPERTY(QQmlListProperty<VarModel> vars READ getVars NOTIFY varsChanged)
  explicit VarsModel(Client *cl, QObject *parent = nullptr);
  QQmlListProperty<VarModel> getVars() { return m_qml_vars; }

 signals:
  void varsChanged();
 public slots:
 private:
  std::vector<VarModel *> m_vars;
  QQmlListProperty<decltype(
      std::remove_pointer<decltype(m_vars)::value_type>::type())>
      m_qml_vars;
  Client *m_cl;

  void clear() {
    std::for_each(m_vars.begin(), m_vars.end(),
                  [](auto v) { v->deleteLater(); });
    m_vars.clear();
    emit varsChanged();
  }
  void add_var(decltype(m_vars)::value_type var);
  static void add_var(decltype(m_qml_vars) *property,
                      decltype(m_vars)::value_type var) {
    // FIXME(denisacostaq@gmail.com): Memory leak for VarModel*?
    reinterpret_cast<VarsModel *>(property->data)->add_var(var);
  }
  auto var_at(int index) { return m_vars.at(index); }
  static auto var_at(decltype(m_qml_vars) *property, int index) {
    return reinterpret_cast<VarsModel *>(property->data)->var_at(index);
  }
  int vars_size() { return m_vars.size(); }
  static int vars_size(decltype(m_qml_vars) *property) {
    return reinterpret_cast<VarsModel *>(property->data)->vars_size();
  }
  static void clear_vars(decltype(m_qml_vars) *) {
    qDebug() << "unsupported operation, so ignored";
  }
};

#endif  // HMI_MODEL_VARSMODEL_H