No widgets for long string visualization?

Rhadel

Hello there,

I need to show very long strings in my GUI (thousands of charater). I also need show very long lines (a new line every 10000 - 20000 characters), so I ve setted vertical scroll as always active, and lineWrapMode = NoWrap (this mode seems to make a worse performance). You can see what I mean in the image below.

!http://i43.tinypic.com/2945vmc.png(Image)!

Well, I've tried with QTextEdit and QPlainText. This last one has a better performance, but its not enough for a good scroll moving and navigate between these long strings.

How can I use a widget with a fine performance for this kind of data?

Thanks

kenchan

Hello,

If you are only displaying them why not paint them yourself? Then the performance is up to you...

Rhadel

Ty kenchan for your fast reply.

I need some functions from QTextEdit or QPlainText like select data, get selected data, select a column etc... If I paint the text in a QGraphicsScene, I think I'm losing all this stuff, isn't?

kenchan

I have never subclassed QTextEdit or QPlainText so I don't know how much work it takes.
I don't think you need to draw to a QGraphicsScene, just a plain widget should do the job.

I think the font you use will also influence the performance.

Rhadel

Thanks again Ken,

I've tried with some other font with the same result.

I dont know what you mean with a plain widget. Maybe did you mean use labels?

kenchan

Yes, a label would do.