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/**
@mainpage The Poppler Qt5 interface library
The %Poppler Qt5 interface library, libpoppler-qt5, is a library that
allows Qt5 programmers to easily load and render PDF files. The
%Poppler Qt5 interface library uses poppler internally to do its job,
but the Qt5 programmer will never have to worry about poppler
internals.
@section help Current Status
The %Poppler Qt5 interface library is in developement.
@section refimpl Example Programs
Examples programs can be found in the qt5/test directory. The %Poppler
Qt5 interface library is also used in the KDE's
document viewer <a href="http://okular.kde.org">Okular</a>. The source files
for Okular's PDF plugin (%Poppler-based) can be found on the git server
of the KDE project, under
<a
href="http://quickgit.kde.org/?p=okular.git&a=tree&f=generators/poppler">this
URL</a>.
@section req How to use the Poppler Qt5 interface library in three easy steps
Programmer who would like to use the %Poppler Qt5 interface library
simply need to add the following line to their C++ source files:
@code
#include <poppler-qt5.h>
@endcode
A PDF document can then be loaded as follows:
@code
QString filename;
Poppler::Document* document = Poppler::Document::load(filename);
if (!document || document->isLocked()) {
// ... error message ....
delete document;
return;
}
@endcode
Pages can be rendered to QImages with the following commands:
@code
// Paranoid safety check
if (document == 0) {
// ... error message ...
return;
}
// Access page of the PDF file
Poppler::Page* pdfPage = document->page(pageNumber); // Document starts at page 0
if (pdfPage == 0) {
// ... error message ...
return;
}
// Generate a QImage of the rendered page
QImage image = pdfPage->renderToImage(xres, yres, x, y, width, height);
if (image.isNull()) {
// ... error message ...
return;
}
// ... use image ...
// after the usage, the page must be deleted
delete pdfPage;
@endcode
Finally, don't forget to destroy the document:
@code
delete document;
@endcode
*/
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