[Qt-interest] Retrieve a particular item from the QTreeView

[Sajjad]

On Fri, Mar 25, 2011 at 9:18 AM, Sajjad <dosto.walla at gmail.com> wrote:

> Hello Constantin,
>
> I gave the pressed signal a try and connected the signal to  a slot.
> Initially the slot definition contains  a cout statement
>
>
> to check if the pressed signal is actually captured. It is connected as
> follows:
>
> ///////////////////////////////////////////////////////////////
>
>   connect(m_h3dNodeTreeView,SIGNAL(pressed(QModelIndex)),this,SLOT(getH3DTreeItemData(QModelIndex)));
>
>
> ///////////////////////////////////////////////////////////////
>
>
> But withe the pressed signal i get not output. Any other hint?
>
>
> Regards
> Sajjad
>
> On Thu, Mar 24, 2011 at 12:24 AM, Constantin Makshin <cmakshin at gmail.com>wrote:
>
>> I can't say for sure what's the difference, but my guess is that pressed()
>> is emitted when a mouse button is pressed and clicked() — when it's
>> released.
>>
>> And you don't have to override mousePressEvent() as signals emitted by
>> item views and selection models are more convenient, particularly because
>> they provide index of the selected item.
>>
>> On Thursday 24 March 2011 01:08:39 Sajjad wrote:
>> > Hello Constantin,
>> >
>> > Is there any difference between the signals pressed() and clicked().
>> >
>> > I have subclass the QTreeView as well. I was wondering if i should
>> over-ride
>> > the mousePressEvent() of QTreeView instead.
>> >
>> > Regards
>> > Sajjad
>> >
>> > On Wed, Mar 23, 2011 at 10:44 PM, Constantin Makshin <
>> cmakshin at gmail.com>wrote:
>> >
>> > > Take a look at QAbstractItemView::clicked(),
>> QAbstractItemView::pressed()
>> > > signals and selection model (returned by
>> > > QAbstractItemView::selectionModel()) functions.
>> > >
>> > > On Thursday 24 March 2011 00:26:14 Sajjad wrote:
>> > > > Hello forum,
>> > > >
>> > > > I have created a customized model by sub-classing the
>> QAbstractItemModel
>> > > > class and view the model in the QTreeView.
>> > > >
>> > > > Now when the user the click on a particular item in the tree view i
>> want
>> > > > retrieve the tree item from it.
>> > > >
>> > > > I have encapculated the QTreeView inside the customized widget. And
>> then
>> > > i
>> > > > have over-ridden the mousePressEvent()
>> > > >
>> > > > {
>> > > >      //I check for the left mouse press event and if not i return
>> > > >
>> > > >     //i need to look for the current clicked item - any way inside
>> the
>> > > > QTreeView to get it?
>> > > > }
>> > > >
>> > > >
>> > > >
>> > > > Any hint to get it?
>>
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>>
>>
>
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