Qt-interest Archive, January 2007
QStyleOptionButton with hand cursor
Message 1 in thread
Hi,
Qt 4.1.2
I have a QStyleOptionButton which I am using as a fake widget.
I want to change its cursor to PointingHand type. I cant seem to find a
staright forward way to do it.
Need help for this.
Thanks
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Message 2 in thread
Jaya Meghani wrote:
> Hi,
>
> Qt 4.1.2
>
> I have a QStyleOptionButton which I am using as a fake widget.
> I want to change its cursor to PointingHand type. I cant seem to find a
> staright forward way to do it.
> Need help for this.
Hmmm, usually you would call QWidget::setCursor (Qt::PointingHandCursor)
on a given widget - so I assume your problem is how to get the actual
QWidget, given the QStyleOptionButton? And I don't quite understand what
you mean with "fake widget", since QStyleOptionButton is NOT a widget.
Do you mean an "invisible widget" which should simply define an area
where the mouse cursor changes?
Is what you want that the mouse pointer changes into a hand on a
(single) given area? So why not define an invisible QFrame (without
borders etc.) on the given widget and call QFrame::setCursor (...) on
that frame?
Or is what you want that EACH QPushButton should have a point hand
cursor (specified via the style classes, and not for each single
QPushButton that happens to be in your application)? This is probably a
bit trickier and I don't know of any solution how to specify the mouse
cursor for a given widget type, using QStyle(-Option)...
Cheers, Oliver
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Message 3 in thread
> > Hi,
> >
> > Qt 4.1.2
> >
> > I have a QStyleOptionButton which I am using as a fake widget.
> > I want to change its cursor to PointingHand type. I cant
> seem to find
> > a staright forward way to do it.
> > Need help for this.
>
> Hmmm, usually you would call QWidget::setCursor
> (Qt::PointingHandCursor) on a given widget - so I assume your
> problem is how to get the actual QWidget, given the
> QStyleOptionButton? And I don't quite understand what you
> mean with "fake widget", since QStyleOptionButton is NOT a widget.
> Do you mean an "invisible widget" which should simply define
> an area where the mouse cursor changes?
By fake widget I meant that I am not using an actual pushbutton but
just a QStyleOptionButton to draw it.
>
> Is what you want that the mouse pointer changes into a hand on a
> (single) given area? So why not define an invisible QFrame
> (without borders etc.) on the given widget and call
> QFrame::setCursor (...) on that frame?
I have this QStyleOptionButton in lots of rows in a QTreeWidget. So
adding an invisible frame would mean so many extra widgets for each row
just to change the arrow.
I was wondering if there is a cleaner way to do it? Like setting style?
>
> Or is what you want that EACH QPushButton should have a point
> hand cursor (specified via the style classes, and not for
> each single QPushButton that happens to be in your
> application)? This is probably a bit trickier and I don't
> know of any solution how to specify the mouse cursor for a
> given widget type, using QStyle(-Option)...
>
> Cheers, Oliver
>
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Message 4 in thread
Jaya Meghani schrieb:
>>> Hi,
>> ...
> By fake widget I meant that I am not using an actual pushbutton but
> just a QStyleOptionButton to draw it.
> ...
> I have this QStyleOptionButton in lots of rows in a QTreeWidget. So
> adding an invisible frame would mean so many extra widgets for each row
> just to change the arrow.
> I was wondering if there is a cleaner way to do it? Like setting style?
Hmmm... from the Qt docs I really don't see how you could specify the
mouse cursor for a given style option (I'm not saying there is no way to
set it; I simply don't know). I think you really need to use a real
QWidget (QPushButton in your case) as to define the mouse cursor for it.
If you have multiple of those buttons you could always subclass from
QPushButton, e.g. "MouseHandPushButton", hard-code the mouse cursor
there (e.g. in the c'tor) and use this in your QTreeWidget.
Cheers, Oliver
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