Problems using Wt::WPaintedWidget
Added by Patrik Jeppsson almost 14 years ago
Hi,
I've been evaluating Wt for a few days now and I really enjoy working with it.
I've managed to integrate some Qt-based code from another project and
everything seems to work just fine except for one thing.
They idea is that the (web-)server should be able to read some data from
another server (xml data) and then present the result to clients (some buttons
and simple graphics).
I thought it would be a good idea begin with presenting a few basic objects
like triangles, boxes and so forth. So, what I did was to reimplement the
WPaintedWidget::paintEvent() method to draw a blue box using WPainter::fillRect().
I created a few instances of my own WPainterWidget called CPaintArea and put them
in a WContainerWidget.
Using firebug in Firefox I can see that all the boxes excist and are positioned
correctly but I can't see them at all...
If it's any help my object hierarchy:
CMainWindow (WContainerWidget)
- CView (CWContainerWidget)
- CPaintArea (my boxes, a very basic impl. of WPaintedWidget)
I need this "WContainerWidget in WContainerWidget" hierachy since
I might need to present CViews in CViews, so to speak.
Any idea of what might be wrong?
Replies (3)
RE: Problems using Wt::WPaintedWidget - Added by Patrik Jeppsson almost 14 years ago
It might be of interest that I do get a call to WPaintedWidget::paintEvent(Wt::WPaintDevice*)
so it should be able to draw itself.
Oh, and I have this red "Loading..." text in the upper right corner
that I can't remember putting there. Maybe that's related to my problem?
RE: Problems using Wt::WPaintedWidget - Added by Koen Deforche almost 14 years ago
Hey,
The Loading... indicator is not good.
It points to an error either in the client-side code or the server-side process that crashed ? In any case, Firebug should tell you if there was a JavaScript error (normally, Wt should not generate such errors).
Did you give a size to your painted widgets ? They need to be set explicitly a size using resize().
Regards,
koen
RE: Problems using Wt::WPaintedWidget - Added by Patrik Jeppsson almost 14 years ago
Hey,
Thanks for your reply. The Loading... indicator disapperad on it's own somehow.
I do know that my server code didn't crash though since I were running it through
a debugger.
I've managed to solve my problem with WPaintedWidget by resizing them, thanks a lot!