Re: Graphics files in archives cannot be toggled to display image or code

[Peter Dyballa]

Am 01.04.2006 um 15:45 schrieb Richard Stallman:

>     No, it does not: I still see only empty frames (in bold magenta  
> for
>     xbm in tar, in black for tiff or gif in zip) and the JPEG file  
> does
>     not switch to the frame, i.e. I see only file's code from the  
> start.
>     (No more tries.)
>
> Can you debug why it fails?
> It ought to work.

Before your eMail arrived I wondered whether my yesterday 'make -k'  
really made a new image-mode.elc file, so I invoked 'make clean ;  
make -k' -- and it *partially* really works: in the ZIP file I can  
see GIF, JPEG, and TIFF images and toggle between this and the code  
view more than once and I either see the image or its code. In the  
tar file, x-symbol-4.51-src.tar.gz, the XBM and XPM images in x- 
symbol/etc only show up as quadratic frames.

In a different tar file, digit-src-2_12.tar.gz, I could view GIF,  
PNG, and JPEG files. I could toggle to the code view. The next toggle  
made a frame appear. More toggles with C-c C-c only switched between  
the frame and the code view.


Next week I could start to understand image-mode.el and make a plan.  
Actually, I have no other idea than to create a tar file with image  
files of all types and then create from this also differently  
compressed versions ... and of course some other types of archives  
(p7zip seems to support a few different formats like arc, arj, lha ...)


(Isn't it time to add some JPEG2000 support with the help of libjasper?)

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