[Ipe-discuss] IPE 7 Crashes on JPEG

[Otfried Cheong]

You use JPEG to store a black-and-white image?   You know that in PNG
the image is only 1/4 the size of the JPEG file?

The crash is inside some Windows function call, and apparently it's
related to the fact that it's a grayscale JPEG.  I guess I need to
figure out what the problem is at some point, but really, there is a
better way to achieve what you want:

- open the JPEG, say with the Window 10 Photo Viewer;
- right-click, and select "Copy" in the photo viewer;
- in Ipe, use Ctrl+V to paste the bitmap.

This will store the image in Ipe not as a JPEG, but as a compressed
bitmap - which is actually smaller for this kind of image.  (Saving the
PDF with this figure inside is only 134kB, versus 228kB for the JPEG
image alone.)

Cheers,
  Otfried

On Sun, Apr 9, 2017, at 15:32, C Kruger wrote:
> Hi Otfried
> 
> Thanks again for the quick reply.
> 
> Yes, I am using version 7.2.7.
> 
> Please find attach a jpg that crashes the ide. It was created using 
> irfanview (by storing a bmp file).
> 
> Thanks again
> Christiaan
> 
> 
> On 2017-04-08 11:19 PM, Otfried Cheong wrote:
> > Are you using the most recent Ipe version?   A bug of this nature was
> > fixed in a recent version.
> >
> > If yes, please do file a bug report and attach one of the jpeg figures
> > that does not work. (Or, if that is too much to ask, just mail it to
> > me).
> >
> > Cheers,
> >    Otfried
> >
> >
> > On Sun, Apr 9, 2017, at 04:48, C Kruger wrote:
> >> Hi Otfried
> >>
> >> Thanks for the reply. I did some more testing, and the problem is not
> >> related to the version 6 to 7 upgrade itself.
> >>
> >> If I store a graphics file in jpg format using Irfanview, and try to
> >> insert it in IPE 7, it crashes.
> >>
> >> If I generate that same jpg file using MSpaint, then I can insert it in
> >> IPE 7 without an issues.
> >>
> >> Problem is that I have hundreds of jpg images (from Irfanview) in my old
> >> document (upgraded from version 6), so I am really hoping there is
> >> something I can do.
> >>
> >> Thanks
> >> Christiaan
> >>
> >> On 08/04/2017 10:29 PM, Otfried Cheong wrote:
> >>> So you converted the file with ipe6upgrade, and when you open it with
> >>> Ipe 7, Ipe crashes?
> >>>
> >>> Please open a bug report at https://github.com/otfried/ipe-issues/issues
> >>> and attach the problematic file (ideally both the original Ipe 6 file
> >>> and the result of converting it).
> >>>
> >>> Cheers,
> >>>     Otfried
> >>>
> >>> On Sat, Apr 8, 2017, at 20:09, C Kruger wrote:
> >>>> Hi
> >>>>
> >>>> I have upgraded my files from IPE 6 to 7 (on Win 10 with Miktex).
> >>>>
> >>>> All looks good, except the IDE crashes, which seems to happen when the
> >>>> page contains a JPEG image.
> >>>>
> >>>> Any advice or workaround perhaps ?
> >>>>
> >>>> Christiaan
> >>>> _______________________________________________
> >>>> Ipe-discuss mailing list
> >>>> Ipe-discuss at lists.science.uu.nl
> >>>> http://lists.science.uu.nl/mailman/listinfo/ipe-discuss
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> >>>
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