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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QML Presentation System.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtQml>
#include <QQuickItem>
#include <QDebug>
#include <QPixmap>
#include <QScreen>
#include "slideview.h"
SlideView::SlideView(QWindow* parent): QQuickView(parent),
m_slidesLeft(0), m_printedSlides(0) {
connect (this, SIGNAL(statusChanged(QQuickView::Status)),
this, SLOT(updateStatus(QQuickView::Status)));
}
void SlideView::updateStatus(QQuickView::Status status) {
if (m_slidesLeft > 0) return;
if (status != QQuickView::Ready) return;
QQuickItem *ri = rootObject();
QString superClass = ri->metaObject()->superClass()->className();
if (!superClass.startsWith("Presentation")) {
qWarning("Warning: Superclass appears to not be a Presentation: %s. ", superClass.toLocal8Bit().constData());
}
else qDebug() << "Found qml Presentation as rootObject";
ri->setProperty("allowDelay", QVariant(false));//Disable partial reveals on slide pages
QList<QVariant> slides = ri->property("slides").toList();
m_slidesLeft = slides.size();
qDebug() << "SlideCount: " << m_slidesLeft;
qDebug() << "Printer's Page rect size (and suggested resolution of your presentation): " << m_printer.pageRect().size();
m_printer.setOrientation(QPrinter::Landscape);
m_printer.setFullPage(true);
m_printer.setOutputFileName("slides.pdf");
m_painter.begin(&m_printer);
// it would be better if we used the printer resolution here and forced
// the presentation to be in the same resolution but when I try that,
// the timer doesn't work properly for some reason?
setHeight(ri->height());
setWidth(ri->width());
// Try uncommenting the below 4 lines and see what happens.
//setHeight(m_printer.pageRect().height());
//setWidth(m_printer.pageRect().width());
//ri->setHeight(height());
//ri->setWidth(width());
// start timer to print out pages once every 2 seconds.
m_tid = startTimer(2000);
}
void SlideView::timerEvent(QTimerEvent*) {
printCurrentSlide();
++m_printedSlides;
--m_slidesLeft;
if (m_slidesLeft > 0) {
m_printer.newPage();
goToNextSlide();
}
else {
killTimer(m_tid);
m_painter.end();
qDebug() << "Printed to file: " << m_printer.outputFileName();
qApp->exit();
}
}
void SlideView::printCurrentSlide() {
QImage pix = grabWindow();
qDebug() << "Printing slide#" << m_printedSlides + 1 << "Resolution:" << pix.size();
QRect pageRect = m_printer.pageRect();
QSize targetSize = pix.size();
targetSize.scale(pageRect.width(), pageRect.height(), Qt::KeepAspectRatio);
m_painter.drawImage(QRectF(pageRect.topLeft(), targetSize), pix);
}
void SlideView::goToNextSlide() {
static const QMetaObject* meta = rootObject()->metaObject();
meta->invokeMethod(rootObject(), "goToNextSlide");
}
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