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How can I manipulate the size of image without scaling ? [message #460611]

Thu, 01 September 2005 08:57

Eclipse User

Is there any way to add additional canvas width to an swt image without
scaling it ? (This would be the same as enlarging the cnavas size in
Photoshop).
The additional canvas space should be transparent.

Background:

Images displayed in a table are always resized to the size of the first
image inserted into the table.
So far so god, but the following images are scaled without respect to
their aspect ratio. So I want to workaround this by normalizing the
aspect ratio of all images by adding additional canvas space before
inserting them into the table.

Any tips would be highly appreciated.

Thanks,
Yves

Re: How can I manipulate the size of image without scaling ? [message #460614 is a reply to message #460611]

Thu, 01 September 2005 10:15

Eclipse User

You could create a new image of the right size, then copy the contents of one image into another, which is probably the easiest approach.

There's some info on ImageData at http://www.eclipse.org/articles/Article-SWT-images/graphics- resources.html

Re: How can I manipulate the size of image without scaling ? [message #460615 is a reply to message #460611]

Thu, 01 September 2005 10:17

Eclipse User

Originally posted by: sunil_kamath.nohotspammail.com

"Yves Harms" <user@domain.invalid> wrote in message
news:df6u2m$8k5$1@news.eclipse.org...
> Is there any way to add additional canvas width to an swt image without
> scaling it ? (This would be the same as enlarging the cnavas size in
> Photoshop).
> The additional canvas space should be transparent.
>
> Background:
>
> Images displayed in a table are always resized to the size of the first
> image inserted into the table.
> So far so god, but the following images are scaled without respect to
> their aspect ratio. So I want to workaround this by normalizing the aspect
> ratio of all images by adding additional canvas space before inserting
> them into the table.
>
Create a new Image with the increased canvas size.
Create a GC for the new Image.
Draw the old Image in the desired location in the GC.
Dispose the GC.
Dispose the old Image.
---
Sunil

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