diff options
author | Jüri Valdmann <juri.valdmann@qt.io> | 2017-04-26 12:57:47 +0200 |
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committer | Jüri Valdmann <juri.valdmann@qt.io> | 2017-05-23 08:16:39 +0000 |
commit | c8db91081485bb4ef2430f1c39cb66336cce9d62 (patch) | |
tree | cf18a9f9a42a09bc45003d65f4a45e6f49e468e8 /examples/webenginewidgets/html2pdf/html2pdf.cpp | |
parent | 067054150a97c6385b704ce6bac505c4ad1a397f (diff) |
Create example for WebEngine's Print To Pdf
Adds example command line tool 'html2pdf' that loads a URL into
QWebEnginePage and prints it to a pdf file.
Task-number: QTBUG-59823
Change-Id: I898e9a9ecdf819f417876f964d40e494f6095c99
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Michael Brüning <michael.bruning@qt.io>
Diffstat (limited to 'examples/webenginewidgets/html2pdf/html2pdf.cpp')
-rw-r--r-- | examples/webenginewidgets/html2pdf/html2pdf.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/examples/webenginewidgets/html2pdf/html2pdf.cpp b/examples/webenginewidgets/html2pdf/html2pdf.cpp new file mode 100644 index 000000000..44e692a22 --- /dev/null +++ b/examples/webenginewidgets/html2pdf/html2pdf.cpp @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples 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 The Qt Company Ltd 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include <QCommandLineParser> +#include <QFile> +#include <QWebEnginePage> + +#include <functional> + +using namespace std; +using namespace std::placeholders; + +class Html2PdfConverter : public QObject +{ + Q_OBJECT +public: + explicit Html2PdfConverter(QString inputPath, QString outputPath); + int run(); + +private slots: + void loadFinished(bool ok); + void pdfPrintingFinished(const QString &filePath, bool success); + +private: + QString m_inputPath; + QString m_outputPath; + QScopedPointer<QWebEnginePage> m_page; +}; + +Html2PdfConverter::Html2PdfConverter(QString inputPath, QString outputPath) + : m_inputPath(move(inputPath)) + , m_outputPath(move(outputPath)) + , m_page(new QWebEnginePage) +{ + connect(m_page.data(), &QWebEnginePage::loadFinished, + this, &Html2PdfConverter::loadFinished); + connect(m_page.data(), &QWebEnginePage::pdfPrintingFinished, + this, &Html2PdfConverter::pdfPrintingFinished); +} + +int Html2PdfConverter::run() +{ + m_page->load(QUrl::fromUserInput(m_inputPath)); + return QApplication::exec(); +} + +void Html2PdfConverter::loadFinished(bool ok) +{ + if (!ok) { + QTextStream(stderr) + << tr("failed to load URL '%1'").arg(m_inputPath) << "\n"; + QCoreApplication::exit(1); + return; + } + + m_page->printToPdf(m_outputPath); +} + +void Html2PdfConverter::pdfPrintingFinished(const QString &filePath, bool success) +{ + if (!success) { + QTextStream(stderr) + << tr("failed to print to output file '%1'").arg(filePath) << "\n"; + QCoreApplication::exit(1); + } else { + QCoreApplication::quit(); + } +} + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + QCoreApplication::setApplicationName("html2pdf"); + QCoreApplication::setApplicationVersion(QT_VERSION_STR); + + QCommandLineParser parser; + parser.setApplicationDescription( + QCoreApplication::translate("main", "Converts the web page INPUT into the PDF file OUTPUT.")); + parser.addHelpOption(); + parser.addVersionOption(); + parser.addPositionalArgument( + QCoreApplication::translate("main", "INPUT"), + QCoreApplication::translate("main", "Input URL for PDF conversion.")); + parser.addPositionalArgument( + QCoreApplication::translate("main", "OUTPUT"), + QCoreApplication::translate("main", "Output file name for PDF conversion.")); + + parser.process(QCoreApplication::arguments()); + + const QStringList requiredArguments = parser.positionalArguments(); + if (requiredArguments.size() != 2) + parser.showHelp(1); + + Html2PdfConverter converter(requiredArguments.at(0), requiredArguments.at(1)); + return converter.run(); +} + +#include "html2pdf.moc" |