Good way to make a standard tree model for develop CLI and GUI application

I used QStandardModelItemModel for treeview show in GUI.
But I can't using QStandardModelItemModel for develop CLI app.
I want to create subclass of QAbstractItemModel for both TreeView and Model of CLI app.
I saw simple tree model, but It is still difficult to modify for tree model, example: edit model, set, get property of item,....
Where or How to help me make StandardTreeModel which I can use to devboth GUI app and CLI app

Quote:

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Originally Posted by madawg

But I can't using QStandardModelItemModel for develop CLI app.

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Why not?

Code:

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#include <QCoreApplication>
#include <QStandardItemModel>
#include <QDebug>
 
int main(int argc, char **argv) {
    QCoreApplication app(argc, argv);
    qDebug() << "No GUI here";
 
    QStandardItemModel model(4, 4);
    for (int row = 0; row < 4; ++row) {
        for (int column = 0; column < 4; ++column) {
            QStandardItem *item = new QStandardItem(QString("row %0, column %1").arg(row).arg(column));
            model.setItem(row, column, item);
        }
    }
 
    for (int row = 0; row < 4; ++row) {
        for (int column = 0; column < 4; ++column) {
            QModelIndex index = model.index(row, column);
            qDebug() << index.data();
        }
    }
 
    return 0;
}

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because I want to develop CLI app
in .pro file, I set

Code:

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QT-= GUI

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Because QStandardModelItemModel is a GUI class

Yes, QStandardItemModel requires the QtGui library but it does not require you to use a GUI. You can have a usable command-line only application and use the standard model. It may have issues running in an environment without X though... haven't tried.

You state you want a QAbstractItemModel interface. That interface is in QtCore so you can do this without QtGui. Take a look at Editable Tree Model Example. It is not trivial to fully implement a model, but the example goes through a working internal data structure and extensions for editing.