/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "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 Digia Plc and its Subsidiary(-ies) 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
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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****************************************************************************/

#include <QtGui>

class Window : public QWidget
{
    Q_OBJECT

public:
    Window() {
        myWidget = new QPushButton("Print Me");
        connect(myWidget, SIGNAL(clicked()), this, SLOT(print()));

        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(myWidget);
        setLayout(layout);
    }

private slots:
    void print() {
        QPrinter printer(QPrinter::HighResolution);

        printer.setOutputFileName("test.pdf");

//! [0]
        QPainter painter;
        painter.begin(&printer);
        double xscale = printer.pageRect().width()/double(myWidget->width());
        double yscale = printer.pageRect().height()/double(myWidget->height());
        double scale = qMin(xscale, yscale);
        painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
                           printer.paperRect().y() + printer.pageRect().height()/2);
        painter.scale(scale, scale);
        painter.translate(-width()/2, -height()/2);

        myWidget->render(&painter);
//! [0]
    }

private:
    QPushButton *myWidget;
};

int main(int argv, char **args)
{
    QApplication app(argv, args);

    Window window;
    window.show();

    return app.exec();
}

#include "main.moc"