[Qt-interest] Box Pick Zoom

[Thomas Dähling]

OK, so what is the specific problem? Of course there won't be a rubber
band appearing by issuing that simple call you did, because that is
just deciding how the View should treat selected Items (i.e. select
all items that contained or intersected by the graphicsitem or it's
bounding rect). If you want to start showing a rubber band you might
have to reimplement the view and provide a specialized paint routine
that, when 'zoom in' is toggled, draws a rect around the selected
items.

2009/8/13 Sujan Dasmahapatra <sujan.dasmahapatra at gmail.com>:
> Box Pick Zoom is rubber band selection option.
> Mean User'll pick some portion on the view using  left mouse (Rubber band
> selection )and that portion will be zoomed.
>
> On Thu, Aug 13, 2009 at 4:56 PM, Thomas Dähling <t.daehling at googlemail.com>
> wrote:
>>
>> In all honesty, I cannot imagine what 'box pick zoom' is supposed to
>> be, and google did not help me figuring this out either. Maybe if you
>> could elaborate further upon what this is exactly supposed to do
>> there'll be more people able to help you out with this.
>>
>> 2009/8/13 Sujan Dasmahapatra <sujan.dasmahapatra at gmail.com>:
>> > Dear Friends
>> >
>> > I have a QGraphicsView, QGraphicsScene and a bunch of QGraphicsItem.
>> >
>> > all the  items are in the scene and displayed in view. I want to provide
>> > box
>> > pick zoom in and zoom out to the items or to the view.
>> >
>> > so  in the slot when user clicks for zoom in I am enabling rubberband
>> > selection mode.
>> > //something like this.
>> > MainWindow::ZoomIn()
>> > {
>> >    view->setRubberBandSelectionMode (Qt::ContainsItemShape);
>> >
>> > }
>> >
>> >
>> > //////////////////////////////////////////////
>> >
>> > but when I click on zoom in  no rubber band is appearing.Can anyone
>> > suggest
>> > me how could I achieve box pick zoom for my view and items in the view.
>> > ??
>> >
>> > --
>> > Thanks & Regards
>> > S. Dasmahapatra
>> > B.E. (Aeronautics-Aerodynamics)
>> > Bangalore, India
>> > Ph:91-9900839788
>> > Office:91-80-66470248
>> > mail id : sujan.dasmahapatra at gmail.com
>> >
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>> >
>> >
>
>
>
> --
> Thanks & Regards
> S. Dasmahapatra
> B.E. (Aeronautics-Aerodynamics)
> Bangalore, India
> Ph:91-9900839788
> Office:91-80-66470248
> mail id : sujan.dasmahapatra at gmail.com
>
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