JsonModel for QTreeView

dridk

Does Somebody create a jsonModel based on QAbstractItemModel to populate a QTreeView ?
This is pretty hard ! Tree Model with parent(), index(), rowCount ... makes me crazy ...
I started briefly... I m asking now, because I know I will fail... :( So, if some of you have a piece of code , thanks you !

@#include "jsonmodel.h"

JsonModel::JsonModel(const QJsonDocument &document, QObject *parent)
{
mDoc = document;
}

JsonModel::~JsonModel()
{

}

QVariant JsonModel::data(const QModelIndex &index, int role) const
{

if (role == Qt::DisplayRole)
    return "Test";

return QVariant();

}

QModelIndex JsonModel::index(int row, int column, const QModelIndex &parent) const
{

if (!hasIndex(row,column, parent))
    return QModelIndex();

return createIndex(row,column);

}

QModelIndex JsonModel::parent(const QModelIndex &child) const
{

}

int JsonModel::rowCount(const QModelIndex &parent) const
{
if (!parent.isValid()){

    if (mDoc.isArray())
        return mDoc.array().count();
    if (mDoc.isObject())
        return mDoc.object().count();
    else
        return 0;
}

else {



}

}

int JsonModel::columnCount(const QModelIndex &parent) const
{

return 1;

}@

SGaist

Hi,

Looks like you could take some inspiration from "QJsonTreeWidget":https://github.com/valerino/QJsonTreeWidget

Hope it helps

dridk

I made it !

https://github.com/dridk/QJsonmodel

@QJsonModel * model = new QJsonModel;
QTreeView * view = new QTreeView;
view->setModel(model);
model->load("example.json");@

enjoy !!

SGaist

Thanks for sharing ! :)

JKSH

Great work! Looks very useful.

If you’re interested, here’s the work of another community member, who made a model for QVariantMap: http://qt-project.org/forums/viewthread/52418/

Aleksey_K

@dridk thanks! Saves much time to me!

hizoka

Thanks :)

For a python version : https://github.com/GrxE/PyQJsonModel

justHappy

@dridk Thank you very much!

GTDev

I think JsonListModel (QSyncable implementation) is the best json model at the moment. It is only compatible with ListView, GridView and Repeater though (I think):
https://v-play.net/apps/avoid-cpp-models-qt

GrecKo

@GTDev said in JsonModel for QTreeView:

I think JsonListModel (QSyncable implementation) is the best json model at the moment. It is only compatible with ListView, GridView and Repeater though (I think):
https://v-play.net/apps/avoid-cpp-models-qt

Better link : https://github.com/benlau/qsyncable
It doesn't behave as a tree model though AFAIK.