[Gambas-user] drawingarea - clipping when saving to file

[Björn Röder]

Hello everyone!

I found the solution for my problem. I use a Picturebox instead of a
Drawingarea and synchronize it with the internal picture that I'm
drawing to (as drawing device). It gives me the same functionality with
only little more work.

Regards,

Björn


Björn Röder schrieb:
> Hello everyone!
> 
> First of all, Gambas is a really great piece of software that I really
> enjoy to use. I am using it as my default programming language for
> practical laboratory tool development. Nevertheless I got stuck while
> programming a tool for simple image analysis and editing of scanned data.
> 
> I am experiencing problems when I am trying to save a Drawingarea to a
> file. I have loaded a scanned picture inside the Drawingarea. The
> Drawingarea itself is placed inside a Scrollview.
> 
> Hierarchy: Form(Scrollview(Drawingarea(JPEG-Image + drawn lines)))
> 
> I am using the following code to save the Drawingarea:
> 
> Drawingarea.grab().image.save("/home/user/test.jpg")
> 
> When the area of the image is greater than the scrollview (when
> scrollbars are visible), only the visible part of the screen is saved
> correctly. The rest of the Drawingarea's content is filled with bogus
> image-parts (e.g. parts of surrounding Dektop and Form, where the hidden
> Image-part should be).
> 
> The problem is discussed in a forum regarding Motif-programming (*), but
> I haven' t found any similar information for Gambas.
> (* Link:
> http://fixunix.com/motif/93849-saving-drawingarea-xpm-xcopyarea.html)
> 
> Thank you for your interest and help!
> 
> Regards,
> 
> Björn
> 
> ------------------------------------------------------------------------------
> The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
> production scanning environment may not be a perfect world - but thanks to
> Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700
> Series Scanner you'll get full speed at 300 dpi even with all image 
> processing features enabled. http://p.sf.net/sfu/kodak-com
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>