/*
 * Copyright (c) 2012, 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 the 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.
 */

#include <rviz/properties/combo_box.h>

#include <rviz/properties/enum_property.h>

namespace rviz
{
EnumProperty::EnumProperty(const QString& name,
                           const QString& default_value,
                           const QString& description,
                           Property* parent)
  : StringProperty(name, default_value, description, parent)
{
}

void EnumProperty::clearOptions()
{
  strings_.clear();
  ints_.clear();
}

void EnumProperty::addOption(const QString& option, int value)
{
  strings_.push_back(option);
  ints_[option] = value;
}

int EnumProperty::getOptionInt()
{
  QString current_string = getValue().toString();
  QHash<QString, int>::const_iterator int_iter = ints_.find(current_string);
  if (int_iter != ints_.end())
  {
    return int_iter.value();
  }
  return 0;
}

QWidget* EnumProperty::createEditor(QWidget* parent, const QStyleOptionViewItem& /*option*/)
{
  // Emit requestOptions() to give listeners a chance to change the option list.
  Q_EMIT requestOptions(this);

  ComboBox* cb = new ComboBox(parent);
  cb->addItems(strings_);
  cb->setCurrentIndex(strings_.indexOf(getValue().toString()));
  QObject::connect(cb, qOverload<int>(&QComboBox::currentIndexChanged), this,
                   [this, cb](int idx) { setString(cb->itemText(idx)); });

  // TODO: need to better handle string value which is not in list.
  return cb;
}

void EnumProperty::setString(const QString& str)
{
  setValue(str);
}

} // end namespace rviz
