Re: Problem with icns file

[Bertrand Dekoninck]

Le 26/02/2021 à 23:18, Fred Kiefer a écrit :
> Just to understand the issue a bit better. Are you using libicns to read the 
> icns file or is the fallback to the GNUstep implementation used? The later 
> implementation is rather limited and won’t be able to handle your added formats.
>
> And why didn’t you add a 48x48 version?

To be clearer : I add for each app a resource folder in 
Sombre.theme/Resources. Here, I add 
Sombre.theme/Resources/org.gap.InnerSpace.

And I place the custom icon inside. It must be named as is named the 
appicon in InnerSpace plist file : InnerSpace_Icon.icns.

I tried to replace it with a 48x48 InnerSpace_Icon.tiff but it didn't 
work. Should it work ? If so, I must have missed something and should 
retry. I remember to have replaced tiff files with png files in 
rik.theme long ago.

So to answer your question, I don't think I use libicns, unless 
GWorkspace uses it to read icns files. But I don't see this library in 
its dependancies.

I would like to be able to reproduce the same sizes as Greg in my icns 
file, but I don't know how. If I don't generate the missing @2x files 
with my conversion script, iconutil complains about them and fail on osX 
ElCapitan. I tried my conversion script on osX Leopard, but it misses 
the iconutil tool.

B.

> Cheers,
> Fred
>
> > Am 26.02.2021 um 20:21 schrieb Bertrand Dekoninck <bdekoninck@free.fr>:
> >
> > Hi everyone !
> >
> > I'm working on theming icons again and ma facing a problem with InnerSpace icns 
> > icon. This is the first icns ifle I've encountered in gnustep applications 
> > resources folder.
> >
> > I've created a custom SVG icon for it, which I've converted to 1024x1024 png.
> >
> > I don't now how Gregory did generate its original InnerSpace_Icon.icns file.
> >
> > I didn't find any linux tool to convert it to icns file and only found a little 
> > script on the web using apple's sips and iconutil tools.
> >
> > The problem is that the resulting icon doesn't display properly at 48x48 size 
> > in GWorkspace. At this size, the icon displayed is in fact the 32x32 one and is 
> > smaller than all the others. I think GNUstep and/or GWorkspace don't display 
> > correctly high res icns file at this size.
> >
> > I can see on Macos Preview differences between my icns and Greg's one :
> >
> > Greg's contains 16x16, 32x32, 128x128, 256x256, 512x512 at 72 ppm sizes, plus a 
> > 512x512@2x (1024x1024 at 144 bpm).
> >
> > Mine contains the same plus 16x16@2x, 32x32@2x, 128x128@2x, 256x256@2x.
> >
> > I attach the script used to generate the icon and the icon itself to this mail.
> >
> > Can someone help me figure out how to override this problem ?
> >
> >
> > Last question : Gworkspace seems to display  icons better at 64x64 if it's an 
> > icns file than a 48x48 tiff file. Should I increase the size of my icons ? 
> > Would it be possible to implement bigger sizes in GWorkspace (128 ? 256 ?) 
> > using bigger tiff files or this format containing multiple files? GWorkspace is 
> > a little poor looking compared to other filemanagers and desktop  in this area.
> >
> > Cheers,
> >
> > Bertrand
> >
> >
> > <createICNS.sh><MyIcon.icns>