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.