[SOLVED] Displaying Table from plain text file using QTableView

amban

Hi,
I am retrieving information in the form of plain text files and i want to just display these tables in a neat way - which of the above is a better way. Any other suggestions ?

giesbert

QTableView displays a model as tabel. QDataWidgetMapper ampps the data of a model to a bunch of widgets.
So displaying data in a table is a typical task of QTableView and a "QAbstractTableModel":http://doc.qt.nokia.com/4.7/qabstracttablemodel.html derived class. But you have to parse your text and create the model. "See here for an example inside Qt documentation":http://doc.qt.nokia.com/4.7/model-view-programming.html

sfilippidis

Well, if you want a table-kind display, go for the QTableView. If want a custom form designed by you, go for the QDataWidgetMapper.

HuXiKa

If you are just displaying data parsed from a file, the I think QTableView is a better choice.

amban

Thanks for all your suggestions. I decided to use QTableView.
Following a previous post http://www.qtcentre.org/threads/17377-QTableView-memory-consumption , i have come up with the following code :
@
Widget::Widget(QWidget *parent) :
QWidget(parent),
{

QTableView *mytable = new QTableView();
QStandardItemModel *mytablemodel = new QStandardItemModel();
mytablemodel->setRowCount(0);

int Max_num_of_Columns(8);
int Max_Number_of_Lines(0);
mytablemodel->setColumnCount(Max_num_of_Columns);

QFile file&#40;"/path/to/txt/file"&#41;;
if (!file.open(QIODevice::ReadWrite | QIODevice::Text))
    qDebug() << "Error opening file";

QTextStream InputDataFile&#40;&file&#41;;
while (!InputDataFile.atEnd())
{

    QString line = InputDataFile.readLine();
    QStringList fields = line.split(" ");

    if (fields.size() == Max_num_of_Columns)
    {
        for (int column=0; column< Max_num_of_Columns; column++)
        {
            QStandardItem *item = new QStandardItem(fields[column]);
            mytablemodel->setItem(Max_Number_of_Lines, column, item);
        }
        Max_Number_of_Lines++ ;
    }


}

file.close();

mytable->setModel(mytablemodel);
mytable->show();

}
@

I am unable to follow the model/view very well. Please help me figure out how to make this work. Just read a plain text file and display it in a tabular fashion.

Thanks a lot.

amban

This code works fine. It was messed up because of irregular spaces.
I used @ str = "Some text\n\twith strange whitespace.";
list = str.split(QRegExp("\s+"));@ to remove them.

Hope this helps. Thanks.

KierraHar

Did you ever get this program to work because I can't seem to...where would i put:
@
str = "Some text\n\twith strange whitespace.";
list = str.split(QRegExp("\s+"));
@

andreyc

You should put these lines at line 21 in the example above
It should look like
@
QString line = InputDataFile.readLine();
QStringList fields = line.split(QRegExp("\s+"));
@