Re: [PyQt] Editing multiple items in QTreeView delegate
...and just to cleanup and clarify, in ms.py, I had to go back and edit it to be: global MyTreeView instead of just simply MyTreeView which I wrote before... ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Editing multiple items in QTreeView delegate
On Wednesday 06 April 2011, 02:43:38 James Polk wrote: I have a curious dilemma I can't seem to find any information about in the docs... I have a QTreeView and a delegate... The items in the QTreeView have columns of similar data. When I set the selection behaviour to multiSelect (actually called ExtendedSelect) I can pick a single column of numbers that all have either a 1 in them. I can then CTRL-click and change one of them from 1 to 0...while all of them are still highlighted/selected. What I want to do is to simultaneously change all of them from 1 to 0 in one fell swoop. In the delegate though...if I try to use indices = treeView.selectedIndexes() it of course doesn't know anything about treeViewhow can I pass to the delegate some variable that contains an address/pointer/reference to the QTreeView, so that I can query all the selected items. I'm trying to make this work in the setModelData of the delegate. The question is, why so? Since the treeview selection is a view thing, you should handle the selection there, e.g. by subclassing and reimplementing the QAbstractItemView.selectionChanged() method. Of course, you can add some convenience interface to the model to handle the bulk changes there. Pete ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Editing multiple items in QTreeView delegate
hi, not sure its a good idea but i solved this kind of problem by sending a signal from the delegate which the view can catch and perform the edit on all the selected items. it works just fine here. bests Zoli On 2011.04.06. 2:43, James Polk wrote: I have a curious dilemma I can't seem to find any information about in the docs... I have a QTreeView and a delegate... The items in the QTreeView have columns of similar data. When I set the selection behaviour to multiSelect (actually called ExtendedSelect) I can pick a single column of numbers that all have either a 1 in them. I can then CTRL-click and change one of them from 1 to 0...while all of them are still highlighted/selected. What I want to do is to simultaneously change all of them from 1 to 0 in one fell swoop. In the delegate though...if I try to use indices = treeView.selectedIndexes() it of course doesn't know anything about treeViewhow can I pass to the delegate some variable that contains an address/pointer/reference to the QTreeView, so that I can query all the selected items. I'm trying to make this work in the setModelData of the delegate. Thanks, -Jim ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Editing multiple items in QTreeView delegate
Well I found a solution and thought I would share it... Probably not the most elegant, but it does work.. Works by using an import global variable (told you it wasn't elegant ;-) I created a file named ms.py and inside is a single line: MyTreeView and that's all. In my main.py,...I import ms at the top. Later, I set the variable by... ms.MyTreeView = self.treeView Then in my delegate file, delegate.py, I also add import ms at the top. And then later, in the setModelData() function, after checking selectionMode() to make sure it's in multiSelect,...and after handling the main selection,I do a indices = ms.MyTreeView.selectedIndexes() and loop thru them setting their value to the value of the main selection... A side note,...when a treeView's selectionMode is set to 3 (Extended Selection), one can pull a vertical pick from top to bottom, highlighting multiple items in a single column. Then, while holding down CTRL, you can double-click selection one item out of this group. This will pass this CTRL-selection to the delegate and remove its index from the indices returned above. Which is good, so you don't double-set it's value. When you hit enter, the code will take the value of the CTRL-selection and apply it to all the others who are still highlighted, making a nice clean sweep and saving lots of keystrokes if you need to change a lot of items. Cheers, -Jim ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Editing multiple items in QTreeView delegate
I have a curious dilemma I can't seem to find any information about in the docs... I have a QTreeView and a delegate... The items in the QTreeView have columns of similar data. When I set the selection behaviour to multiSelect (actually called ExtendedSelect) I can pick a single column of numbers that all have either a 1 in them. I can then CTRL-click and change one of them from 1 to 0...while all of them are still highlighted/selected. What I want to do is to simultaneously change all of them from 1 to 0 in one fell swoop. In the delegate though...if I try to use indices = treeView.selectedIndexes() it of course doesn't know anything about treeViewhow can I pass to the delegate some variable that contains an address/pointer/reference to the QTreeView, so that I can query all the selected items. I'm trying to make this work in the setModelData of the delegate. Thanks, -Jim ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
