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Scrolling Viewer Problem [message #186080]

Fri, 01 July 2005 14:10

Eclipse User

Originally posted by: prb113.cs.york.ac.uk

Hi,

I have an editor with a ScaleableFreeformRootEditPart as the root edit
part. This top layer then contains a single rectangular container figure,
which contains other rectangular figures. I have implemented an XY style
layout which snaps to a grid size for the container figure. This all works
fine while I haven't scrolled anywhere but once I scroll across the
screen, say x units then the figures are offest from the gird lines by: x
mod gridSize

Having looked at other posts I think this is something to do with relative
and absolute co-ordinates but I cannot get it to work.

Any ideas?

Paul

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Re: Scrolling Viewer Problem [message #186222 is a reply to message #186080]

Mon, 04 July 2005 02:02

Dazhen Gao

Messages: 21
Registered: July 2009

Junior Member

My suggestion:Check you the method that calculate snap size.
If you getBounds from the figure, you should translate the bounds to the
absolutely bounds.(figure.translateToAbsolute)

"Paul Barton" <prb113@cs.york.ac.uk> wrote in message
news:d2fb365e3319b9f3633f04faa22befac$1@www.eclipse.org...
> Hi,
>
> I have an editor with a ScaleableFreeformRootEditPart as the root edit
> part. This top layer then contains a single rectangular container figure,
> which contains other rectangular figures. I have implemented an XY style
> layout which snaps to a grid size for the container figure. This all works
> fine while I haven't scrolled anywhere but once I scroll across the
> screen, say x units then the figures are offest from the gird lines by: x
> mod gridSize
>
> Having looked at other posts I think this is something to do with relative
> and absolute co-ordinates but I cannot get it to work.
>
> Any ideas?
>
> Paul
>

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