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GUI update [message #461790]

Fri, 30 September 2005 08:34

Henrik Skovgaard

Messages: 84
Registered: July 2009

Member

Hi

I have a thread that is updating my GUI. While this update is going on, I
would like to stop redrawing until the SashForm's weights have been set, to
avoid screen flickering. However, if I click the mouse somewhere on the
screen while screen redraw is turned off, then my application will loose
focus to whatever program is showing behind it. How can I avoid this?

Code:

Display.getCurrent().asyncExec(new Runnable() {
public void run() {
SashForm sashA =
(SashForm)PriceElementEditor.getForm().getParent();
SashForm sashB =
(SashForm)PriceElementWindow.getPriceEntityGrid().getParent( );
int[] weightsA = sashA.getWeights();
int[] weightsB = sashB.getWeights();

//disable screen updating
sashA.getShell().setRedraw(false);

PriceElement pe = (PriceElement)element;

PriceElementEditor.getForm().dispose();
try {
PriceElementEditor.setForm(new
PriceElementForm(sashA, SWT.NONE, pe));
sashA.setWeights(weightsA);
} catch (SQLException e) {
e.printStackTrace();
}

PriceElementWindow.getPriceEntityGrid().dispose();
PriceElementWindow.setPriceEntityGrid(new
PriceEntityGrid(sashB, SWT.VERTICAL, pe));
sashB.setWeights(weightsB);

//enable screen updating again
sashA.getShell().setRedraw(true);
}
});

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Re: GUI update [message #461793 is a reply to message #461790]

Fri, 30 September 2005 09:07

Henrik Skovgaard

Messages: 84
Registered: July 2009

Member

"Henrik Skovgaard" <hsk_rem0vethis_@reklamedata.dk> wrote in message
news:dhitan$gs3$1@news.eclipse.org...
> How can I avoid this?

Got it figured out (doh!) :-)

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Re: GUI update [message #461795 is a reply to message #461793]

Fri, 30 September 2005 09:25

arne anka

Messages: 133
Registered: July 2009

Senior Member

share your results with us (just for the record -- if somebody has your
problem and only finds your answer, it may be very frustrating)

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Re: GUI update [message #461797 is a reply to message #461795]

Fri, 30 September 2005 10:40

Henrik Skovgaard

Messages: 84
Registered: July 2009

Member

"arne anka" <arne.anka@ginguppin.de> wrote in message
news:op.sxwsgz0luyrgnr@komhem...
> share your results with us (just for the record -- if somebody has your
> problem and only finds your answer, it may be very frustrating)

Instead of doing setRedraw(false) and then true on shell-level, I found out
that is was possible on composite-level.

Kender du Arne? http://www.blok4.dk/images/strips/strip_0043.gif

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Re: GUI update [message #461806 is a reply to message #461797]

Fri, 30 September 2005 13:59

arne anka

Messages: 133
Registered: July 2009

Senior Member

> Instead of doing setRedraw(false) and then true on shell-level, I found
> out
> that is was possible on composite-level.

thanks, i'm sure it's a problem i have to solve in a near future ...

> Kender du Arne? http://www.blok4.dk/images/strips/strip_0043.gif

nej, bara honom:
http://www.arneanka.com/
det är int min sida, jag bara tycker att han är kul så jag valde han's
namn som nick ;-)

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