Russian Qt Forum

#include <QtGui>

#include "signaldelegate.h"

SignalDelegate::SignalDelegate(int selSignalColumn, QObject *parent)
	: QItemDelegate(parent)
{
	this->selSignalColumn = selSignalColumn;
}

QWidget *SignalDelegate::createEditor(QWidget *parent,
        const QStyleOptionViewItem &option,
        const QModelIndex &index) const
{
	if (index.column() == selSignalColumn) {
		QComboBox *box = new QComboBox(parent);
		box->setEditable(true);
		box->setAutoCompletion(true);
		//box->setModel(const_cast<QAbstractItemModel*>(model));
		box->setModelColumn(index.column());
		box->installEventFilter(const_cast<SignalDelegate*>(this));
		return box;
	} else {
		return QItemDelegate::createEditor(parent, option, index);
	}
}

void SignalDelegate::setEditorData(QWidget *editor,
                                  const QModelIndex &index) const
{
	if (index.column() == selSignalColumn) {
		QComboBox* box = qobject_cast<QComboBox*>(editor);
		
		const QAbstractItemModel *model = index.model();
		
		if (!box || !model)
			QItemDelegate::setEditorData(editor, index);
		box->setCurrentIndex(index.row());
		
	} else {
		QItemDelegate::setEditorData(editor, index);
	}
}

void SignalDelegate::setModelData(QWidget *editor,
                                 QAbstractItemModel *model,
                                 const QModelIndex &index) const
{
	if (index.column() == selSignalColumn) {
		QComboBox *box = qobject_cast<QComboBox*>(editor);
		if (!box)
			return QItemDelegate::setModelData(editor, model, index);
		
		model->setData(index, box->currentText(), Qt::DisplayRole);
		model->setData(index, box->currentText(), Qt::EditRole);
	} else {
		return QItemDelegate::setModelData(editor, model, index);
	}
}

#ifndef SIGNALDELEGATE_H
#define SIGNALDELEGATE_H

#include <QItemDelegate>

class SignalDelegate: public QItemDelegate
{
	Q_OBJECT
	
public:
	SignalDelegate(int selSignalColumn, QObject *parent = 0);
	
    //void paint(QPainter *painter, const QStyleOptionViewItem &option,
    //           const QModelIndex &index) const;
    QWidget *createEditor(QWidget *parent,
                          const QStyleOptionViewItem &option,
                          const QModelIndex &index) const;
    void setEditorData(QWidget *editor, const QModelIndex &index) const;
    void setModelData(QWidget *editor, QAbstractItemModel *model,
                      const QModelIndex &index) const;

//private slots:
    //void commitAndCloseEditor();
	
private:
	int selSignalColumn;
};

#endif

    QStandardItemModel model(4, 2);
	
	// Создадим табличное представление
	// и установим для него модель
    QTableView tableView;
    tableView.setModel(&model);

for (int row = 0; row < 4; row++)
	{
		// создаем строчки
        for (int column = 0; column < 2; column++)
		{
			// создаем колонки
            QModelIndex index = model.index(row, column, QModelIndex());
			model.setData(index, QVariant((row) + (column)));//
        }
    }

			QComboBox *cmbox = new QComboBox(parent);
			cmbox->addItem("0");
			cmbox->addItem("1");

QWidget *SignalDelegate::createEditor(QWidget *parent,
        const QStyleOptionViewItem &option,
        const QModelIndex &index) const
{
	if (index.column() == selSignalColumn) {
		QComboBox *box = new QComboBox(parent);
		box->setEditable(true);
		box->setAutoCompletion(true);

		box->addItem("Signal 2");
		box->addItem("Signal 3");
		
		box->installEventFilter(const_cast<SignalDelegate*>(this));
                      connect(box, SIGNAL(currentIndexChanged()),
                                  this, SLOT(commitAndCloseEditor())); /////// Вот этот конект
		return static_cast<QWidget *>(box);
	} else {
		return QItemDelegate::createEditor(parent, option, index);
	}
}

void SignalDelegate::commitAndCloseEditor()
{
	QMessageBox msgBox;
	msgBox.setText(QString("%1").arg("msg"));
	msgBox.exec();
}

box->addItem("Signal 2");

box->setCurrentIndex(arr[index.row()]);