3 files changed, 92 insertions, 0 deletions
diff --git a/examples/table/bigtable/bigtable.doc b/examples/table/bigtable/bigtable.doc
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+++ b/examples/table/bigtable/bigtable.doc
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+/*
+*/
+     
+/*! \page bigtable-example.html
+
+  \ingroup table-examples
+
+  \title How to create a large, sparse QTable 
+ 
+    This example shows a sparse table implementation using a QIntDict to
+    keep track of the cells that are actually in use.
+
+  <hr>
+ 
+  Implementation:
+ 
+  \include table/bigtable/main.cpp
+
+*/
diff --git a/examples/table/bigtable/bigtable.pro b/examples/table/bigtable/bigtable.pro
new file mode 100644
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+++ b/examples/table/bigtable/bigtable.pro
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+TEMPLATE	= app
+TARGET		= bigtable
+
+CONFIG		+= qt warn_on release
+DEPENDPATH 	= ../../include
+
+REQUIRES 	= table full-config
+
+HEADERS		=
+SOURCES		= main.cpp
diff --git a/examples/table/bigtable/main.cpp b/examples/table/bigtable/main.cpp
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+++ b/examples/table/bigtable/main.cpp
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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();
+}