Re: [Interest] Painting fonts without GUI

Jason H Tue, 07 Jun 2016 07:28:31 -0700

"minimal" or "offscreen" - one of those fixed the text issue for me.

Sent: Tuesday, June 07, 2016 at 10:00 AM
From: "Federico Buti" <[email protected]>
To: "Jason H" <[email protected]>
Cc: "[email protected]" <[email protected]>
Subject: Re: [Interest] Painting fonts without GUI

Indeed.

I remember having issues such as black blocks in place of actual text while the rest of the PDF was fine.

Anyhow, thanks for the datails.

Bests,

On 7 June 2016 at 15:57, Jason H <[email protected]> wrote:

Yea, so I didn't read the stack overflow but it said what I said, though I take issue with "QPA won't work" assertion. QPA works just fine. I think what lead them to that was some package issues they were having. FWIW, I didn't have them.

Sent: Tuesday, June 07, 2016 at 9:52 AM
From: "Jason H" <[email protected]>
To: "Federico Buti" <[email protected]>

Cc: "[email protected]" <[email protected]>
Subject: Re: [Interest] Painting fonts without GUI

While true, that is not the complete truth.

You can use a platform (-platform XXX) to specify an non-X server, and use that for rendering. That's how I generated PDFs on a headless server.

"offscreen" is one, but there is a better one that escapes me at the moment.

Sent: Tuesday, June 07, 2016 at 7:48 AM
From: "Federico Buti" <[email protected]>
To: "Etienne Sandré-Chardonnal" <[email protected]>
Cc: "[email protected]" <[email protected]>
Subject: Re: [Interest] Painting fonts without GUI

Hi,

you need a QGuiApplication for that. See e.g. this stackoverflow question.

Cheers,

F.

On 7 June 2016 at 11:04, Etienne Sandré-Chardonnal <[email protected]> wrote:

Hi,

When I try painting text over a QImage in a console only application with QPainter::drawText, the program crashes.

Is there any way to enable font painting in a non GUI application? It should work without any X server, so in that case Qt should have a fallback font? This does not need to be pretty text.

Thanks!

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Re: [Interest] Painting fonts without GUI

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