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#include "gui/config_dialog/combobox_delegate.h"
#include <QtGui/QtGui>
#include <QtGui/QComboBox>

namespace mozc {
namespace gui {

ComboBoxDelegate::ComboBoxDelegate(QObject *parent)
    : QItemDelegate(parent) {}

ComboBoxDelegate::~ComboBoxDelegate() {}

QWidget *ComboBoxDelegate::createEditor(
    QWidget *parent,
    const QStyleOptionViewItem &option,
    const QModelIndex &index) const {
  QComboBox *editor = new QComboBox(parent);
  connect(editor, SIGNAL(currentIndexChanged(const QString &)),
          this, SLOT(CommitAndCloseEditor(const QString &)));
  for (int i = 0; i < item_list_.size(); ++i) {
    editor->addItem(item_list_.at(i));
  }
  return editor;
}

void ComboBoxDelegate::SetItemList(const QStringList &item_list) {
  item_list_ = item_list;
}

void ComboBoxDelegate::setEditorData(
    QWidget *editor,
    const QModelIndex &index) const {
  QString str = index.model()->data(index, Qt::EditRole).toString();
  QComboBox *comboBox =
      static_cast<QComboBox*>(editor);
  if (comboBox == NULL) {
    return;
  }
  comboBox->setCurrentIndex(comboBox->findText(str));
}

void ComboBoxDelegate::setModelData(
    QWidget *editor, QAbstractItemModel *model,
    const QModelIndex &index) const {
  QComboBox *comboBox =
      static_cast<QComboBox*>(editor);
  if (comboBox == NULL || model == NULL) {
    return;
  }
  model->setData(index, comboBox->currentText(), Qt::EditRole);
}

void ComboBoxDelegate::updateEditorGeometry(
    QWidget *editor,
    const QStyleOptionViewItem &option,
    const QModelIndex &index) const {
  if (editor == NULL) {
    return;
  }
  editor->setGeometry(option.rect);
}

void ComboBoxDelegate::CommitAndCloseEditor(const QString &) {
  QComboBox *editor = qobject_cast<QComboBox *>(sender());
  emit commitData(editor);
  emit closeEditor(editor);
}
}  // gui
}  // mozc