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Home » Eclipse Projects » GEF » Overview Woes - snap shot of the canvas
Overview Woes - snap shot of the canvas [message #156709] Thu, 04 November 2004 07:03 Go to next message
Eclipse UserFriend
Originally posted by: selpin.yahoo.com

Hi,
I am currently modifying the logic example to create a program to suit
my needs. However, i have no need for the outline and overview and has
removed it. Strangely, i found my program creating images of the snap shot
of the canvas. I suspect that this is done for displaying the contents of
the canvas for the overview which i no longer have? When are these snap
shots executed? How does the overview of the Logic Example works, i simply
cannot trace where this originates. Thanks in advance!

Regards,
Evon
Re: Overview Woes - snap shot of the canvas [message #156782 is a reply to message #156709] Thu, 04 November 2004 16:00 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: none.us.ibm.com

draw2d is double buffered, so Images are used for painting in general.

"Evon" <selpin@yahoo.com> wrote in message news:cmck7g$avb$1@eclipse.org...
> Hi,
> I am currently modifying the logic example to create a program to suit
> my needs. However, i have no need for the outline and overview and has
> removed it. Strangely, i found my program creating images of the snap shot
> of the canvas. I suspect that this is done for displaying the contents of
> the canvas for the overview which i no longer have? When are these snap
> shots executed? How does the overview of the Logic Example works, i simply
> cannot trace where this originates. Thanks in advance!
>
> Regards,
> Evon
>
Re: Overview Woes - snap shot of the canvas [message #156905 is a reply to message #156782] Fri, 05 November 2004 01:40 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: selpin.yahoo.com

Does that mean that those images must be created regardless of whether i'm
using the outline or not? I just discovered that these images is quite
heavy and they don't seem to get disposed. Is there no way i can clear
these images? are they absolutely necessary?

Randy Hudson wrote:

> draw2d is double buffered, so Images are used for painting in general.

> "Evon" <selpin@yahoo.com> wrote in message news:cmck7g$avb$1@eclipse.org...
>> Hi,
>> I am currently modifying the logic example to create a program to suit
>> my needs. However, i have no need for the outline and overview and has
>> removed it. Strangely, i found my program creating images of the snap shot
>> of the canvas. I suspect that this is done for displaying the contents of
>> the canvas for the overview which i no longer have? When are these snap
>> shots executed? How does the overview of the Logic Example works, i simply
>> cannot trace where this originates. Thanks in advance!
>>
>> Regards,
>> Evon
>>
Re: Overview Woes - snap shot of the canvas [message #156913 is a reply to message #156905] Fri, 05 November 2004 03:31 Go to previous message
Eclipse UserFriend
Originally posted by: none.us.ibm.com

Which version of GEF are you using? Look at BufferedGraphicsSource.flush()
to see the behavior for your version.

"Evon" <selpin@yahoo.com> wrote in message news:cmeln4$2k3$1@eclipse.org...
> Does that mean that those images must be created regardless of whether i'm
> using the outline or not? I just discovered that these images is quite
> heavy and they don't seem to get disposed. Is there no way i can clear
> these images? are they absolutely necessary?
>
> Randy Hudson wrote:
>
> > draw2d is double buffered, so Images are used for painting in general.
>
> > "Evon" <selpin@yahoo.com> wrote in message
news:cmck7g$avb$1@eclipse.org...
> >> Hi,
> >> I am currently modifying the logic example to create a program to
suit
> >> my needs. However, i have no need for the outline and overview and has
> >> removed it. Strangely, i found my program creating images of the snap
shot
> >> of the canvas. I suspect that this is done for displaying the contents
of
> >> the canvas for the overview which i no longer have? When are these snap
> >> shots executed? How does the overview of the Logic Example works, i
simply
> >> cannot trace where this originates. Thanks in advance!
> >>
> >> Regards,
> >> Evon
> >>
>
>
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