QTreeView + QListWidget checkboxes.How to see if returned index is checked/uncheched.

[mekos]

Hello

Assume i have a QListWidget with 2 items an both have checkboxes.

//listWidget creation
{
QListWidgetItem* item1 = new QListWidgetItem (tr( "string1"));
item1->setCheckState ( Qt::Checked );
QListWidgetItem* item2 = new QListWidgetItem (tr( "string2 ));
item2->setCheckState ( Qt::Unchecked );
}
 
//and the below function must find if the selected index from the QListWidget is checked,and do something inside:
 
void function::check(const QModelIndex &index)
{
//what code should it be here???
//if checked do thing1
//if unchecked do thing2
}

//listWidget creation
{
QListWidgetItem* item1 = new QListWidgetItem (tr( "string1"));
item1->setCheckState ( Qt::Checked );
QListWidgetItem* item2 = new QListWidgetItem (tr( "string2 ));
item2->setCheckState ( Qt::Unchecked );
}

//and the below function must find if the selected index from the QListWidget is checked,and do something inside:

void function::check(const QModelIndex &index)
{
//what code should it be here???
//if checked do thing1
//if unchecked do thing2
}

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I have to do the same thing with a QTreeView:
here's an exampe of the tree implementation:

QStandardItemModel *model::createTree( )
{
while ( ( condition ) )
{
QModelIndex index = model->index ( 0, 0 );
model->insertRow ( 0 );
if (condition==contition2)
    { 
     model->setData ( index, someString);
     model->setData ( index, Qt::Checked, Qt::CheckStateRole );
    }
else
    {
     model->setData ( index, someString);
     model->setData ( index, Qt::Unchecked, Qt::CheckStateRole );
    }
 
}
}
//so i have a model with checked and unchecked checkboxes
//the tree gets the model with setModel and the i have to create a function that checks is the index is checked/unchecked:
 
void function::check(const QModelIndex &index)//the tree's index this time
{
//what code should it be here???
//if checked do thing1
//if unchecked do thing2
}

QStandardItemModel *model::createTree( )
{
while ( ( condition ) )
{
QModelIndex index = model->index ( 0, 0 );
model->insertRow ( 0 );
if (condition==contition2)
    { 
     model->setData ( index, someString);
     model->setData ( index, Qt::Checked, Qt::CheckStateRole );
    }
else
    {
     model->setData ( index, someString);
     model->setData ( index, Qt::Unchecked, Qt::CheckStateRole );
    }

}
}
//so i have a model with checked and unchecked checkboxes
//the tree gets the model with setModel and the i have to create a function that checks is the index is checked/unchecked:

void function::check(const QModelIndex &index)//the tree's index this time
{
//what code should it be here???
//if checked do thing1
//if unchecked do thing2
}

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Could this be done the same way as the QListWidget or the implementation of the check function should be diffferent for those two occasions?

Thanks!

[ru_core]

try to look sideward QItemDelegate class, namely the item about Standard Roles and Data Types

[mekos]

Hello

can you pass me an example that fits in the check function?

[wysota]

Use QAbstractItemModel::data() with Qt::CheckStateRole role - it contains the information whether a particular item is checked.