How to change some files backgroundcolors

[tkms]

I want to change the backgroundcolor, that some files in treeview.

but, I don't know how to change.

[spirit]

QVariant MyTreeModel::data(const QModelIndex &index, int role) const
{
     ....
     if (role == Qt::BackgroundRole)
            return QColor(lightGray);
     ....
}

QVariant MyTreeModel::data(const QModelIndex &index, int role) const
{
     ....
     if (role == Qt::BackgroundRole)
            return QColor(lightGray);
     ....
}

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[tkms]

I want to add a color to the parent of the file which I chose. how should I do it?

[spirit]

use this method

bool QAbstractItemModel::setData ( const QModelIndex & index, const QVariant & value, int role = Qt::EditRole )

bool QAbstractItemModel::setData ( const QModelIndex & index, const QVariant & value, int role = Qt::EditRole )

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i.e. in you case

...
QVariant v = QColor(Qt::red);
myModel->setData(index, v, Qt::BackgroundRole);
...

...
QVariant v = QColor(Qt::red);
myModel->setData(index, v, Qt::BackgroundRole);
...

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