How to store two dimensional array in a custom table model?

[A Former User]

i got a custom table model in a book.....but i didnt understand how can i set data into such custom model....
For example i have a very big two dimensional array and i want to store that in that custom model so that i can access it quickly....
So please tell me how can i set data into that custom model

The complete code is as shown below...
mainwindow.h
@ #ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QtCore>
#include <QtGui>

#include <QMainWindow>
 
 
 
class MulModel : public QAbstractTableModel
{
public:
MulModel( int rows, int columns, QObject *parent = 0 );
Qt::ItemFlags flags( const QModelIndex &index ) const;
QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const;
QVariant headerData( int section, Qt::Orientation orientation,
int role = Qt::DisplayRole ) const;
int rowCount( const QModelIndex &parent = QModelIndex() ) const;
int columnCount( const QModelIndex &parent = QModelIndex() ) const;
 
 
 
private:
int m_rows, m_columns;
};
#endif // MAINWINDOW_H@

mainwindow.cpp
@ #include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtCore>
#include <QtGui>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}

MainWindow::~MainWindow()
{
delete ui;
}
 
 
 
MulModel::MulModel( int rows, int columns, QObject *parent ) :
QAbstractTableModel( parent )
{
m_rows = rows;
m_columns = columns;
}
 
 
 
int MulModel::rowCount( const QModelIndex &parent ) const
{
return m_rows;
}
 
 
 
 
int MulModel::columnCount( const QModelIndex &parent ) const
{
return m_columns;
}
 
 
 
QVariant MulModel::data( const QModelIndex &index, int role ) const
{
switch( role )
{
case Qt::DisplayRole:
return (index.row()+1) * (index.column()+1);
case Qt::ToolTipRole:
return QString( "%1 x %2" ).arg( index.row()+1 ).arg( index.column()+1 );
default:
return QVariant();
}
}
 
 
QVariant MulModel::headerData( int section,
Qt::Orientation orientation, int role ) const
{
if( role != Qt::DisplayRole )
return QVariant();
return section+1;
}
 
 
 
Qt::ItemFlags MulModel::flags( const QModelIndex &index ) const
{
if(!index.isValid())
return Qt::ItemIsEnabled;
return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
}@

main.cpp
@
#include <QtGui/QApplication>
#include "mainwindow.h"
#include <QtCore>
#include <QtGui>
int main( int argc, char **argv )
{
QApplication app( argc, argv );
MulModel model( 12, 12 );
QTableView table;
table.setModel( &model );
table.show();
return app.exec();
}

@

[stima_ua]

Rofl? Just think.

| (0)Name | (1)Author | (2)Price

---

(0)1 | Name1 | Author1 | Price1

---

(N-1)N | NameN | AuthorN | PriceN

@
QStandardItemModel *mode = new QStandardItemModel;

for ( int col = 0; col < 3; ++col )
{
QList<QStandartItem*> row;
for ( int row = 0; row < N; ++row )
{
QStandardItem *item = new QStandardItem;
item->setData("Name#", Qt::DisplayRole);

        row.append(item);

        item = new QStandardItem;
        item->setData("Author#", Qt::DisplayRole);

        row.append(item);

        item = new QStandardItem;
        item->setData("Price#", Qt::DisplayRole);

        row.append(item);
   }

   model->appendRow(row);

}
@

[A Former User]

thank u.....but i tried with this ....i dont know exactly how to start......
But at the end nothing is displaying in the view....
Please have a look at this thread...->http://qt-project.org/forums/viewthread/16982/