summaryrefslogtreecommitdiffstats
path: root/examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc
diff options
context:
space:
mode:
Diffstat (limited to 'examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc')
-rw-r--r--examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc96
1 files changed, 96 insertions, 0 deletions
diff --git a/examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc b/examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc
new file mode 100644
index 000000000..97301977f
--- /dev/null
+++ b/examples/webenginewidgets/html2pdf/doc/src/html2pdf.qdoc
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** 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 The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+ \example webenginewidgets/html2pdf
+ \title WebEngine Widgets Html2Pdf Example
+ \ingroup webengine-widgetexamples
+ \brief Converts web pages to PDF documents using Qt WebEngine
+
+ \image html2pdf-example.png
+
+ \e {Html2Pdf} demonstrates how to use Qt WebEngine to implement a
+ command-line application for converting web pages into PDF documents.
+
+ \include examples-run.qdocinc
+
+ \section1 The Conversion Process
+
+ In order to convert a web page into a PDF document we need to:
+
+ \list 1
+ \li Create a \l QWebEnginePage.
+ \li Tell the \l QWebEnginePage to begin loading the target URL and wait for it to finish.
+ \li Tell the \l QWebEnginePage to begin converting the loaded page into a PDF file and again wait for it to finish.
+ \li Once the conversion is finished, exit the program.
+ \endlist
+
+ This process is encapsulated in the \e {Html2PdfConverter} class:
+
+ \quotefromfile webenginewidgets/html2pdf/html2pdf.cpp
+ \skipto #include
+ \printuntil Html2PdfConverter
+ \printuntil /^\};/
+
+ In the constructor we create the \l QWebEnginePage and connect to its \l
+ QWebEnginePage::loadFinished and \l QWebEnginePage::pdfPrintingFinished
+ signals:
+
+ \skipto Html2PdfConverter::Html2PdfConverter
+ \printuntil /^\}/
+
+ The \c run() method will trigger the conversion process by asking \l
+ QWebEnginePage to start loading the target URL. We then enter the main event
+ loop:
+
+ \skipto Html2PdfConverter::run
+ \printuntil /^\}/
+
+ After the loading is finished we begin PDF generation. We ask the \l
+ QWebEnginePage::printToPdf method to write the output directly to disk:
+
+ \skipto Html2PdfConverter::loadFinished
+ \printuntil /^\}/
+
+ Once we receive the signal that the PDF conversion has finished, all that
+ remains is to report potential errors and exit the program:
+
+ \skipto Html2PdfConverter::pdfPrintingFinished
+ \printuntil /^\}/
+
+ \section1 The Main Function
+
+ Our \c main function is responsible for setting up a \l QApplication and
+ parsing command line arguments:
+
+ \skipto int main
+ \printuntil /^\}/
+
+ Note that to use Qt WebEngine Widgets we need to create a \l QApplication
+ and not a \l QCoreApplication, even though this is a command line
+ application.
+*/