input widget for vectors (e.g. double v[6]) - howto do?

[KlausKoe]

Hi,

in my program I have to maintain 4 vectors of length 8. The length might vary a little in future.

I don't want to add every vector component manually to the UI. So my question is if there is an easy way to create an own input widget for this?

rgds
kk

[wysota]

You can create your own custom widget composed from spinboxes or whatever else you want and add instances of that widget to your form either though widget promotion or a custom widget plugin for Designer.

[SneakyPeterson]

kk,

Could you give us a little bit more insight into what you're trying to accomplish? Are you asking if there's a widget that can act as a button to add vectors to your UI, to modify the length of the widgets, or something else entirely. Right now the only answer I can give you to your questions is "yes, probably" without getting a better idea of what you're trying to do.

Cheers,
sp

[KlausKoe]

Hi SP,

>Are you asking if there's a widget that can act as a button to add vectors to your UI
That doesn't sound like my idea.

I want to create a UI for an algorithm which needs 4 double[8] vectors [or call it array] as input parameters. I hope there's any easy way that I only have one mainWidget per vector which maybe looks like 8 lineedits (subWidgets) side by side. On the UI I would only add the mainWidgets and set the width and number of subewidgets (vector length). Maybe that's not too complicated, but I just started with QT and I always had my issues with UI programming.

I hope I could clarifiy it a little.

[Zlatomir]

It is hard for us to respond to your question, because you can use a lot of methods to achieve that (and might depend on other stuff, like: how/where you store your vector, etc)

You can use:
1) spinbox (QDoubleSpinBox most likely because you want double), here you can choose a widget with: one label, one spinbox, and one submit button (and of-course an algorithm to repeat the actions for each element)
2) a spinbox for each element
3) a line edit for each vector (with double values separated by comma, or space or what you like)
4) a textedit (you can use new-line for vector delimitation, and comma or space for values)
5) derive a class from QTableWidget (and make an excel-like program), if you need more computation on the values
... i'm sure that there are a lot more ways to achieve this, imagination is the limit

Think as you are the user... so i ask you: How would you like to enter the input in this application?