Qt-interest Archive, April 2008
Re: equivalent of gtk Realize Event in QT ? / Polish Event on QFileDialog
Message 1 in thread
no, I do not use the static function because I do not want the filedialog to
be modal.
i create a MyQFileDialog with "new"
then call "show()" on this object and the Polish events never occurs...
Any clue about the reason?
(Note: i work with Linux RedHat, not windows)
On Thu, Apr 10, 2008 at 11:33 AM, LEFRERE Véronique <
veronique.lefrere@xxxxxx> wrote:
> in qfiledialog detailed description we can read...
>
> "The easiest way to create a QFileDialog is to use the static functions.
> On Windows, these static functions will call the native Windows file dialog"
>
> maybe you call native window file dialog so this can be the reason of no
> event::Polish in event handler?
> to be confirmed.
>
>
>
>
> Quoting Yannick Barbeaux <ybarbeaux@xxxxxxxxx>:
>
> I reimplemented the event handler so as to catch the polish event
> > for a QFileDialog but the event doesn't seem to occur never?? Would the
> > QFileDialog be a special case?
> >
> > bool MyQFileDialog::event(QEvent *event)
> > {
> > if (event->type() == QEvent::Polish)
> > {
> > std::cout<<"Polish...\n";
> > return true;
> > }
> >
> > event->accept(); // propagate event
> >
> > return true; // ?
> > }
> >
> > On Wed, Apr 9, 2008 at 4:53 PM, Ross Bencina <rossb-lists@xxxxxxxxxxxxxx
> > >
> > wrote:
> >
> > Hi Yannick
> > >
> > > perhaps QEvent::Polish could help you, although I'm not sure if it's
> > > guaranteed to be sent just once.
> > >
> > > Ross.
> > >
> > > ----- Original Message ----- From: Yannick Barbeaux
> > > To: qt-interest@xxxxxxxxxxxxx
> > > Sent: Thursday, April 10, 2008 12:05 AM
> > > Subject: equivalent of gtk Realize Event in QT ?
> > >
> > >
> > >
> > > I am looking for an equivalence of the Gtk Realize Event on widget in
> > > QT
> > >
> > > e.g. an Event that occurs just once before the widget is shown
> > > but does not occur everytime I hide then re-show the widget
> > > (one option is to reimplement the show event and set a flag realized
> > > to
> > > true the first time so as to execute the desired code only once)
> > >
> > > void MyQWidget::showEvent(QShowEvent *event)
> > > {
> > > if (r_isRealized == false)
> > > {
> > > r_isRealized = true; // will execute this code only once
> > >
> > > // more code here...
> > > }
> > >
> > > event->ignore()
> > > }
> > >
> > >
> > > but would anyone have a better option to suggest?
> > >
> > >
> >
>
>
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Message 2 in thread
Linux RedHat and what Qt release?
Yannick Barbeaux a écrit :
> no, I do not use the static function because I do not want the
> filedialog to be modal.
> i create a MyQFileDialog with "new"
> then call "show()" on this object and the Polish events never occurs...
> Any clue about the reason?
>
> (Note: i work with Linux RedHat, not windows)
>
> On Thu, Apr 10, 2008 at 11:33 AM, LEFRERE Véronique
> <veronique.lefrere@xxxxxx <mailto:veronique.lefrere@xxxxxx>> wrote:
>
> in qfiledialog detailed description we can read...
>
> "The easiest way to create a QFileDialog is to use the static
> functions. On Windows, these static functions will call the native
> Windows file dialog"
>
> maybe you call native window file dialog so this can be the reason
> of no event::Polish in event handler?
> to be confirmed.
>
>
>
>
> Quoting Yannick Barbeaux <ybarbeaux@xxxxxxxxx
> <mailto:ybarbeaux@xxxxxxxxx>>:
>
> I reimplemented the event handler so as to catch the polish event
> for a QFileDialog but the event doesn't seem to occur never??
> Would the
> QFileDialog be a special case?
>
> bool MyQFileDialog::event(QEvent *event)
> {
> if (event->type() == QEvent::Polish)
> {
> std::cout<<"Polish...\n";
> return true;
> }
>
> event->accept(); // propagate event
>
> return true; // ?
> }
>
> On Wed, Apr 9, 2008 at 4:53 PM, Ross Bencina
> <rossb-lists@xxxxxxxxxxxxxx <mailto:rossb-lists@xxxxxxxxxxxxxx>>
> wrote:
>
> Hi Yannick
>
> perhaps QEvent::Polish could help you, although I'm not
> sure if it's
> guaranteed to be sent just once.
>
> Ross.
>
> ----- Original Message ----- From: Yannick Barbeaux
> To: qt-interest@xxxxxxxxxxxxx
> <mailto:qt-interest@xxxxxxxxxxxxx>
> Sent: Thursday, April 10, 2008 12:05 AM
> Subject: equivalent of gtk Realize Event in QT ?
>
>
>
> I am looking for an equivalence of the Gtk Realize Event
> on widget in QT
>
> e.g. an Event that occurs just once before the widget is
> shown
> but does not occur everytime I hide then re-show the widget
> (one option is to reimplement the show event and set a
> flag realized to
> true the first time so as to execute the desired code only
> once)
>
> void MyQWidget::showEvent(QShowEvent *event)
> {
> if (r_isRealized == false)
> {
> r_isRealized = true; // will execute this code
> only once
>
> // more code here...
> }
>
> event->ignore()
> }
>
>
> but would anyone have a better option to suggest?
>
>
>
