/*
 * Software License Agreement (BSD License)
 *
 *  Copyright (c) 2010, Willow Garage, Inc.
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of Willow Garage, Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE 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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 *  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 *
 *
 */

#pragma once

#include <QDialog>
#include <QStandardItemModel>
#include <QStyledItemDelegate>

namespace pcl {
namespace modeler {

class Parameter;

class ParameterModel : public QStandardItemModel {
public:
  ParameterModel(QObject* parent = nullptr) : QStandardItemModel(parent) {}
  ParameterModel(int rows, int columns, QObject* parent = nullptr)
  : QStandardItemModel(rows, columns, parent)
  {}

  Qt::ItemFlags
  flags(const QModelIndex& index) const override
  {
    return (index.column() == 0) ? (Qt::ItemIsEnabled | Qt::ItemIsSelectable)
                                 : QStandardItemModel::flags(index);
  }
};

class ParameterDialog : public QDialog {
  Q_OBJECT
public:
  ParameterDialog(const std::string& title, QWidget* parent = nullptr);

  void
  addParameter(Parameter* parameter);

  int
  exec() override;

protected:
  std::map<std::string, Parameter*> name_parameter_map_;
  ParameterModel* parameter_model_;

protected Q_SLOTS:
  void
  reset();
};

class ParameterDelegate : public QStyledItemDelegate {
  Q_OBJECT
public:
  ParameterDelegate(std::map<std::string, Parameter*>& parameterMap,
                    QObject* parent = nullptr);

  QWidget*
  createEditor(QWidget* parent,
               const QStyleOptionViewItem& option,
               const QModelIndex& index) const override;

  void
  setEditorData(QWidget* editor, const QModelIndex& index) const override;

  void
  setModelData(QWidget* editor,
               QAbstractItemModel* model,
               const QModelIndex& index) const override;

  void
  updateEditorGeometry(QWidget* editor,
                       const QStyleOptionViewItem& option,
                       const QModelIndex& index) const override;

protected:
  void
  initStyleOption(QStyleOptionViewItem* option,
                  const QModelIndex& index) const override;

private:
  Parameter*
  getCurrentParameter(const QModelIndex& index) const;

  std::map<std::string, Parameter*>& parameter_map_;
};

} // namespace modeler
} // namespace pcl
