[Interest] Creating pdf with QTextDocument with chart

[Edward Sutton]

You can add image resources to a QTextDocument.



    QTextDocument textDocument;

    textDocument.setPageSize(QSizeF(m_pageWidth, m_pageHeight));


    QString htmlImageClient;

    QImage imageClient(this->m_model->jobInformation()->clientInfo.logoImagePath);

    if(false == imageClient.isNull())

    {

        htmlImageClient = QString("<img src=\"mydata://client.png\" align='left' height=\"%1\" />")

                          .arg(imageHeight);

        textDocument.addResource(QTextDocument::ImageResource,

                                 QUrl("mydata://client.png"), QVariant(imageClient));

    }

The QTextDocument to PDF approach works for Android, Windows, and OS X.  I expect Linux too.

If you need to generate PDF’s on iOS, you will need to find a non-Qt approach.  Unfortunately Qt PDF generation is implemented in QPrinter and iOS has no printer support.

-Ed


On Oct 26, 2015, at 11:28 AM, Duane <duane.hebert at group-upc.com<mailto:duane.hebert at group-upc.com>> wrote:

On 26/10/2015 12:07 PM, Jason H wrote:


I don't think 4.8 has the ability to paint images in a document.  It
looks like Qt5 would make a lot of this simpler.

If you read http://doc.qt.io/qt-4.8/richtext-html-subset.html You'll see it supports the <img> tag.


Yes but img requires a file name.  I'd have to create a png or jpg. Maybe.  I'll look into that.

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