QComboBox MaxVisibleItems overflow

[ecanela]

the example no reproduce the problem. i create a model for use whit the example and i dont see any problem.


please post a more complete example. if queryModel is a SQL model class. try to create a dummy DB to reproduce the problem
a dummy DB is a sqlite DB whit one table, whit the data to cause the problem.

// my model
    int numItems = 300;
    QStandardItemModel * queryModel = new QStandardItemModel(numItems , 1);
    for (int row = 0; row < numItems ; ++row) {
        QStandardItem *item = new QStandardItem(QString("row %0").arg(row));
        queryModel->setItem(row, 0, item);
 
    }
 
   // not my code.
    QComboBox *combo = new QComboBox;
    combo->setModel(queryModel);
    combo->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 
    // MaxVisibleItems set
    QCompleter *p = new QCompleter(queryModel);
    p->setMaxVisibleItems(20);
    combo->setCompleter(p);
    combo->show();

// my model
    int numItems = 300;
    QStandardItemModel * queryModel = new QStandardItemModel(numItems , 1);
    for (int row = 0; row < numItems ; ++row) {
        QStandardItem *item = new QStandardItem(QString("row %0").arg(row));
        queryModel->setItem(row, 0, item);
        
    }
    
   // not my code.
    QComboBox *combo = new QComboBox;
    combo->setModel(queryModel);
    combo->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);

    // MaxVisibleItems set
    QCompleter *p = new QCompleter(queryModel);
    p->setMaxVisibleItems(20);
    combo->setCompleter(p);
    combo->show();

To copy to clipboard, switch view to plain text mode 

[minsoub]

First of all, thanks to your answer.

Sorry, I told not about My Test OS.
My Test Os is Linux.

My code and Your code tested in My Linux machine, QComboBox's height exceed Screen size.

I don't know why it is occurred.

following attached file.

================================================== ==================================

the example no reproduce the problem. i create a model for use whit the example and i dont see any problem.


please post a more complete example. if queryModel is a SQL model class. try to create a dummy DB to reproduce the problem
a dummy DB is a sqlite DB whit one table, whit the data to cause the problem.

// my model
    int numItems = 300;
    QStandardItemModel * queryModel = new QStandardItemModel(numItems , 1);
    for (int row = 0; row < numItems ; ++row) {
        QStandardItem *item = new QStandardItem(QString("row %0").arg(row));
        queryModel->setItem(row, 0, item);
 
    }
 
   // not my code.
    QComboBox *combo = new QComboBox;
    combo->setModel(queryModel);
    combo->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 
    // MaxVisibleItems set
    QCompleter *p = new QCompleter(queryModel);
    p->setMaxVisibleItems(20);
    combo->setCompleter(p);
    combo->show();

// my model
    int numItems = 300;
    QStandardItemModel * queryModel = new QStandardItemModel(numItems , 1);
    for (int row = 0; row < numItems ; ++row) {
        QStandardItem *item = new QStandardItem(QString("row %0").arg(row));
        queryModel->setItem(row, 0, item);
        
    }
    
   // not my code.
    QComboBox *combo = new QComboBox;
    combo->setModel(queryModel);
    combo->view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);

    // MaxVisibleItems set
    QCompleter *p = new QCompleter(queryModel);
    p->setMaxVisibleItems(20);
    combo->setCompleter(p);
    combo->show();

To copy to clipboard, switch view to plain text mode 

[ecanela]

problably you need upgrade the version of Qt.

another option is try to simplify your code. and isolate the problem. maybe is a bug.