Drag and Drop problem

[wysota]

Re: Drag and Drop problem
I've tried something else. I've made a simple model which holds some static data and made another widget for it the drop was enabled over this one. Even though both have the same custom table view and custom header and both models implements mimeType. So, what do u think made it work with one model and not the other !!!!!!!!!!!!!!!!!!!!!1

Was the "another widget" a headerview as well?

Re: Drag and Drop problem
actually I've a new surprise for u all. On debugging I found that it stops @ the break point in the mimeType of my temp small model. and i doesn't in the other model I've been working with for a while. So, I'd really appreciate if any body told me what the heck on earth could make what's happening here make sense !!!!

mimeTypes() just lists what types are produced by the model, it's not important for drops. You have to check whether drop actions are enabled over the place you want to drop on. The difference in behaviour between "two models" could be caused by a different implementation of the flags() method.

AFAIR normally a model doesn't differenciate between a drop on the header and "outside any item", so if you want to actually make a drop on the header, you have to hack the view (remember that headers are not part of the model).

For instance, if you return ItemIsDropEnabled from flags() for an invalid index, you'll be able to perform a drop directly on the view (and not on any of its items). But this won't be a drop on the header itself - you'll be able to drop anywhere in the view. I thought you wanted to drop on the header explicitely.

sorry but i think u've missed those to comments which I've posted early.

I haven't missed them, I just thought they didn't carry any relevant information.

[ScoOteR]

for your first question yes it had a headerview.

in both cases i used the same custom control I've made. So, what do u think might have caused this problem ?!

[kpa]

Hello all,

I am using QTableView with Qt4.6 and I have the same issue with Drop on QHeaderView.

I have Drag & drop working nicely on the table but not on the header. I have created a new class that is based on QHeaderView and that implement the dragEnterEvent, dragMoveEvent, dropEvent.
Of course I have setAcceptDrops(true).
None of the the implemented event is called, and dropping data to the header is impossible...

What I would like to do is to enable drag&drop for a complete line, by using the header.

Does anyone have any idea or hint ?

Thanks in advance

kpa

[kpa]

Finally it was only a bad validity check in dragEnterEvent