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< pre > /****************************************************************************
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "main.h"
#include < < a href = "tqdatatable-h.html" > tqdatatable.h< / a > >
< a name = "f24" > < / a > InvoiceItemCursor::InvoiceItemCursor() :
< a href = "tqsqlcursor.html" > TQSqlCursor< / a > ( "invoiceitem" )
{
< a href = "tqsqlfieldinfo.html" > TQSqlFieldInfo< / a > productName( "productname", TQVariant::String );
< a href = "tqsqlcursor.html#append" > append< / a > ( productName );
< a href = "tqsqlcursor.html#setCalculated" > setCalculated< / a > ( productName.< a href = "tqsqlfieldinfo.html#name" > name< / a > (), TRUE );
< a href = "tqsqlfieldinfo.html" > TQSqlFieldInfo< / a > productPrice( "price", TQVariant::Double );
< a href = "tqsqlcursor.html#append" > append< / a > ( productPrice );
< a href = "tqsqlcursor.html#setCalculated" > setCalculated< / a > ( productPrice.< a href = "tqsqlfieldinfo.html#name" > name< / a > (), TRUE );
< a href = "tqsqlfieldinfo.html" > TQSqlFieldInfo< / a > productCost( "cost", TQVariant::Double );
< a href = "tqsqlcursor.html#append" > append< / a > ( productCost );
< a href = "tqsqlcursor.html#setCalculated" > setCalculated< / a > ( productCost.< a href = "tqsqlfieldinfo.html#name" > name< / a > (), TRUE );
}
TQVariant InvoiceItemCursor::< a href = "tqsqlcursor.html#calculateField" > calculateField< / a > ( const < a href = "ntqstring.html" > TQString< / a > & name )
{
if ( name == "productname" ) {
< a href = "tqsqlquery.html" > TQSqlQuery< / a > query( "SELECT name FROM prices WHERE id=" +
< a href = "tqsqlrecord.html#field" > field< / a > ( "pricesid" )-> value().toString() );
if ( query.< a href = "tqsqlquery.html#next" > next< / a > () )
return query.< a href = "tqsqlquery.html#value" > value< / a > ( 0 );
}
else if ( name == "price" ) {
< a href = "tqsqlquery.html" > TQSqlQuery< / a > query( "SELECT price FROM prices WHERE id=" +
< a href = "tqsqlrecord.html#field" > field< / a > ( "pricesid" )-> value().toString() );
if ( query.< a href = "tqsqlquery.html#next" > next< / a > () )
return query.< a href = "tqsqlquery.html#value" > value< / a > ( 0 );
}
else if ( name == "cost" ) {
< a href = "tqsqlquery.html" > TQSqlQuery< / a > query( "SELECT price FROM prices WHERE id=" +
< a href = "tqsqlrecord.html#field" > field< / a > ( "pricesid" )-> value().toString() );
if ( query.< a href = "tqsqlquery.html#next" > next< / a > () )
return TQVariant( query.< a href = "tqsqlquery.html#value" > value< / a > ( 0 ).toDouble() *
< a href = "tqsqlquery.html#value" > value< / a > ( "quantity").toDouble() );
}
return TQVariant( TQString::null );
}
int main( int argc, char *argv[] )
{
< a href = "ntqapplication.html" > TQApplication< / a > app( argc, argv );
if ( createConnections() ) {
InvoiceItemCursor invoiceItemCursor;
< a href = "tqdatatable.html" > TQDataTable< / a > *invoiceItemTable = new < a href = "tqdatatable.html" > TQDataTable< / a > ( & invoiceItemCursor );
app.< a href = "ntqapplication.html#setMainWidget" > setMainWidget< / a > ( invoiceItemTable );
invoiceItemTable-> < a href = "tqdatatable.html#addColumn" > addColumn< / a > ( "productname", "Product" );
invoiceItemTable-> < a href = "tqdatatable.html#addColumn" > addColumn< / a > ( "price", "Price" );
invoiceItemTable-> < a href = "tqdatatable.html#addColumn" > addColumn< / a > ( "quantity", "Quantity" );
invoiceItemTable-> < a href = "tqdatatable.html#addColumn" > addColumn< / a > ( "cost", "Cost" );
invoiceItemTable-> < a href = "tqdatatable.html#addColumn" > addColumn< / a > ( "paiddate", "Paid" );
invoiceItemTable-> < a href = "tqdatatable.html#refresh" > refresh< / a > ();
invoiceItemTable-> < a href = "tqwidget.html#show" > show< / a > ();
return app.< a href = "ntqapplication.html#exec" > exec< / a > ();
}
return 1;
}
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