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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include <qapplication.h>
#include <qtable.h>
// Table size
const int numRows = 1000000;
const int numCols = 1000000;
class MyTable : public QTable
{
public:
MyTable( int r, int c ) : QTable( r, c ) {
items.setAutoDelete( TRUE );
widgets.setAutoDelete( TRUE );
setCaption( tr( "A 1 Million x 1 Million Cell Table" ) );
setLeftMargin( fontMetrics().width( "W999999W" ) );
}
void resizeData( int ) {}
QTableItem *item( int r, int c ) const { return items.find( indexOf( r, c ) ); }
void setItem( int r, int c, QTableItem *i ) { items.replace( indexOf( r, c ), i ); }
void clearCell( int r, int c ) { items.remove( indexOf( r, c ) ); }
void takeItem( QTableItem *item )
{
items.setAutoDelete( FALSE );
items.remove( indexOf( item->row(), item->col() ) );
items.setAutoDelete( TRUE );
}
void insertWidget( int r, int c, QWidget *w ) { widgets.replace( indexOf( r, c ), w ); }
QWidget *cellWidget( int r, int c ) const { return widgets.find( indexOf( r, c ) ); }
void clearCellWidget( int r, int c )
{
QWidget *w = widgets.take( indexOf( r, c ) );
if ( w )
w->deleteLater();
}
private:
QIntDict<QTableItem> items;
QIntDict<QWidget> widgets;
};
// The program starts here.
int main( int argc, char **argv )
{
QApplication app( argc, argv );
MyTable table( numRows, numCols );
app.setMainWidget( &table );
table.show();
return app.exec();
}
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