How to display pages with poppler

chronix

I'm trying to make a Document Viewer and i'm kinda stuck. I'm using poppler lib. I can open PDFs, and view a single page(the page number that is passed to poppler page function), by rendering it to Qimage and displaying it using a QLable. How can i display all pages, and how can i make continious view mode?

sneubert

Hi chronix,
you have to implement this by yourselfe.
You can ask the poppler document for the number of pages
the pdf includes and render every page to an image.
Then you need to implement some kind of page switching, like
pressing the right arrow key to display the next page in your label.
Poppler only gives you the ability to render pages or search for text, aso.
You have to build the viewer part arround this.

chronix

Yeah, i understand that, i get the whole concept, but i stuck with the implimentation part. I'll try and figure it out. Thanks for you reply.

sneubert

One approach I made, was to use a QGraphicsView. To display the pages I used QGraphicsPixmapItem. Then I reimplemented the ViewportEvent of the QGraphicsView to move the pages in the QGraphicsPixmapItems on mouse wheel to get a scrolling effect.

SGaist

Hi,

Isn't that article from Qt Quarterly what you are looking for ?

DrageFabeldyr

the same question
@SGaist link in dead for now, may be you have another example

JonB

@DrageFabeldyr
Not very hard to find the old page: https://doc.qt.io/archives/qq/qq27-poppler.html

EDIT BTW, Qt things have changed since 2015. If you want a PDF viewer now, what about https://doc.qt.io/qt-5/qtpdf-pdfviewer-example.html ?

DrageFabeldyr

@JonB oh, sorry, didn't recognized the link, this article i've read already

i work with astra linux, it has poppler and i hope that's enough for my task