Linux bookmarks move up and down

step

Read the bookmark file, divide it into QStringList, click the right-click menu to get the serial number, exchange the serial number, and write the bookmark file.

(int, int) is outdated, (int, int) is replaced.

Bookmark file path

const QString filepath_bookmark = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation) + "/gtk-3.0/bookmarks";

Move up

connect(action_bookmark_move_up, &QAction::triggered, [=](){
    QTreeWidgetItem *TWI = ui->treeWidget_nav->currentItem();
    int index = TWI_bookmark->indexOfChild(TWI);
    QFile file(filepath_bookmark);
    if ((QFile::ReadWrite)) {
        QTextStream TS(&file);
        QString s = ();
        QStringList SL = ("\n");
        (index, index - 1);
        s = "";
        for (int i=0; i<(); i++) {
            s += (i);
            if (i < () - 1)
                s += "\n";
        }
        (0);
        TS << s;
        ();
    }
});

Move down

Change swap -1 to +1, the others are the same.

connect(action_bookmark_move_down, &QAction::triggered, [=](){
    QTreeWidgetItem *TWI = ui->treeWidget_nav->currentItem();
    int index = TWI_bookmark->indexOfChild(TWI);
    QFile file(filepath_bookmark);
    if ((QFile::ReadWrite)) {
        QTextStream TS(&file);
        QString s = ();
        QStringList SL = ("\n");
        (index, index + 1);
        s = "";
        for (int i=0; i<(); i++) {
            s += (i);
            if (i < () - 1)
                s += "\n";
        }
        (0);
        TS << s;
        ();
    }
});

Monitor bookmark file changes to update bookmark tree

QFileSystemWatcher is triggered only once

Baidu AI answered:
It can only be triggered once. If it needs to be triggered continuously, you need to add the path again after processing the trigger.

const QString filepath_bookmark = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation) + "/gtk-3.0/bookmarks";
QFileSystemWatcher *watcher = new QFileSystemWatcher;
watcher->addPath(filepath_bookmark);
connect(watcher, &QFileSystemWatcher::fileChanged, [=]{
    genBookmark();
    watcher->addPath(filepath_bookmark);
});

Summarize

The above is personal experience. I hope you can give you a reference and I hope you can support me more.