html2pdf.cpp Example File

webenginewidgets/html2pdf/html2pdf.cpp
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 #include <QApplication>
 #include <QCommandLineParser>
 #include <QFile>
 #include <QTextStream>
 #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::setOrganizationName("QtExamples");
     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"