AbstractMultipleChoiceFilter.cpp

 
/* SPDX-License-Identifier: CC0-1.0 */
 
#include "AbstractMultipleChoiceFilter.h"
 
#include <iostream>
 
#include <QComboBox>
#include <QHBoxLayout>
#include <QMargins>
#include <QString>
#include <QStringList>
 
 
namespace Isis {
  AbstractMultipleChoiceFilter::AbstractMultipleChoiceFilter(
         AbstractFilter::FilterEffectivenessFlag flag,
         int minimumForSuccess) : AbstractFilter(flag, minimumForSuccess) {
    nullify();
    m_curChoice = new QString;
  }
 
  AbstractMultipleChoiceFilter::AbstractMultipleChoiceFilter(
        AbstractMultipleChoiceFilter const &other) : AbstractFilter(other) {
    nullify();
    m_curChoice = new QString;
 
    QStringList options;
    for (int i = 0; i < other.m_combo->count(); i++)
      options.append(other.m_combo->itemText(i));
 
    createWidget(options);
 
    m_combo->setCurrentIndex(other.m_combo->currentIndex());
  }
 
 
 
  AbstractMultipleChoiceFilter::~AbstractMultipleChoiceFilter() {
    if (m_curChoice) {
      delete m_curChoice;
      m_curChoice = NULL;
    }
  }
 
 
  void AbstractMultipleChoiceFilter::nullify() {
    m_combo = NULL;
    m_curChoice = NULL;
  }
 
 
  void AbstractMultipleChoiceFilter::createWidget(QStringList options) {
    m_combo = new QComboBox;
    foreach (QString option, options)
      m_combo->addItem(option);
 
    m_combo->setCurrentIndex(0);
 
    *m_curChoice = m_combo->currentText();
 
    connect(m_combo, SIGNAL(currentIndexChanged(QString)),
        this, SLOT(updateCurChoice(QString)));
 
    QHBoxLayout *layout = new QHBoxLayout;
    QMargins margins = layout->contentsMargins();
    margins.setTop(0);
    margins.setBottom(0);
    layout->setContentsMargins(margins);
    layout->addWidget(m_combo);
    layout->addStretch();
 
    getMainLayout()->addLayout(layout);
  }
 
 
  QString const &AbstractMultipleChoiceFilter::getCurrentChoice() const {
    return *m_curChoice;
  }
 
 
  void AbstractMultipleChoiceFilter::updateCurChoice(QString newChoice) {
 
    *m_curChoice = newChoice;
 
    emit filterChanged();
  }
}