QT QStringListModel 示例代码

1. QStringListModel ，实现插入删除编辑 list,支持鼠标双击编辑。

2. dialog.h

#ifndef DIALOG_H

#define DIALOG_H

#include <QDialog>

#include <QtGui>

class Dialog : public QDialog

{

    Q_OBJECT

public:

    Dialog(const QStringList &leaders, QWidget *parent = 0);

public slots:

    void insertName();

    void deleteName();

    void editName();

private:

    QListView *listView;

    QStringListModel *model;

};

#endif // DIALOG_H

dialog.cpp

#include "dialog.h"

#include <QtGui>

Dialog::Dialog(const QStringList &leaders,QWidget *parent)

    : QDialog(parent)

{

    model = new QStringListModel;

    model->setStringList(leaders);

    listView = new QListView;

    listView->setModel(model);

    QPushButton *insertButton = new QPushButton(tr("insert"));

    QPushButton *deleteButton = new QPushButton(tr("delete"));

    QPushButton *editButton = new QPushButton(tr("edit"));

    connect(insertButton, SIGNAL(clicked()), this, SLOT(insertName()));

    connect(deleteButton, SIGNAL(clicked()), this, SLOT(deleteName()));

    connect(editButton, SIGNAL(clicked()), this, SLOT(editName()));

    QHBoxLayout *hLayout = new QHBoxLayout;

    hLayout->addWidget(insertButton);

    hLayout->addWidget(deleteButton);

    hLayout->addWidget(editButton);

    QVBoxLayout *vLayout = new QVBoxLayout;

    vLayout->addWidget(listView);

    vLayout->addLayout(hLayout);

    setLayout(vLayout);

}

void Dialog::insertName()

{

    bool ok;

    QString name = QInputDialog::getText(this, tr("New Name"), tr(""),

                                         QLineEdit::Normal, tr(""), &ok );

    if( ok && !name.isEmpty() )

    {

        int row = listView->currentIndex().row();

        model->insertRows(row,1);

        QModelIndex index = model->index(row);

        model->setData(index, name);

        listView->setCurrentIndex(index);

    }

}

void Dialog::deleteName()

{

    model->removeRows(listView->currentIndex().row(), 1);

}

void Dialog::editName()

{

    int row = listView->currentIndex().row();

    QModelIndex index = model->index(row);

    QVariant variant = model->data(index, Qt::DisplayRole);

    QString name = variant.toString();

    bool ok;

    name = QInputDialog::getText(this, tr("Edit name"), tr(""), QLineEdit::Normal, tr(""), &ok);

    if( ok && !name.isEmpty() )

    {

        row = listView->currentIndex().row();

        index = model->index(row);

        model->setData(index, name);

        listView->setCurrentIndex(index);

    }

}

main.cpp

#include "dialog.h"

#include <QApplication>

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    QStringList leaders;

    leaders << "test1" << "test2" << "test3" ;

    Dialog w(leaders);

    w.show();

    return a.exec();

}

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QT QStringListModel 示例代码

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