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