C++/Qt/QPrintDialog

Using QPrintDialog

<source lang="cpp">

Foundations of Qt Development\Chapter07\printing\graphicsview\main.cpp /*

* Copyright (c) 2006-2007, Johan Thelin
* 
* All rights reserved.
* 
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
* 
*     * Redistributions of source code must retain the above copyright notice, 
*       this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright notice,  
*       this list of conditions and the following disclaimer in the documentation 
*       and/or other materials provided with the distribution.
*     * Neither the name of APress nor the names of its contributors 
*       may be used to endorse or promote products derived from this software 
*       without specific prior written permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/

1. include <QApplication>
2. include <QGraphicsScene>
3. include <QGraphicsView>
4. include <QGraphicsRectItem>
5. include <QPrinter>
6. include <QPrintDialog>
7. include <QPainter>

int main( int argc, char **argv ) {

 QApplication app( argc, argv );
 
 QGraphicsScene scene( QRect( -50, -50, 400, 200 ) );
 
 QGraphicsRectItem *rectItem = new QGraphicsRectItem( QRect( -25, 25, 200, 40 ), 0, &scene );
 rectItem->setPen( QPen( Qt::red, 3, Qt::DashDotLine ) );
 rectItem->setBrush( Qt::gray );
   
 QGraphicsSimpleTextItem *textItem = new QGraphicsSimpleTextItem( "Foundations of Qt", 0, &scene );
 textItem->setPos( 50, 0 );
 
 QGraphicsEllipseItem *ellipseItem = new QGraphicsEllipseItem( QRect( 170, 20, 100, 75 ), 0, &scene );
 ellipseItem->setPen( QPen(Qt::darkBlue) );
 ellipseItem->setBrush( Qt::blue );
   
 QGraphicsPolygonItem *polygonItem = new QGraphicsPolygonItem( QPolygonF( QVector<QPointF>() << QPointF( 10, 10 ) << QPointF( 0, 90 ) << QPointF( 40, 70 ) << QPointF( 80, 110 ) << QPointF( 70, 20 ) ), 0, &scene );
 polygonItem->setPen( QPen(Qt::darkGreen) );
 polygonItem->setBrush( Qt::yellow );
 
 QPrinter printer;
 QPrintDialog dlg( &printer );
 if( dlg.exec() == QDialog::Accepted )
 {
   QPainter painter( &printer );
   scene.render( &painter, printer.pageRect(), scene.sceneRect(), Qt::KeepAspectRatio );
 }
 return 0;

}

 </source>