Re: Getting Started w/ GNUSTEP-GUI

[Adam Fedor]

On Jan 31, 2006, at 12:28 AM, Stephen Sebeny wrote:
> [sebeny@omicron:~/gui_test]> gmake
> Making all for app GUITestApp...
>  Creating GUITestApp.app/....
>  Compiling file main.m ...
>  Linking app GUITestApp ...
>  Creating GUITestApp.app/Resources...
> gmake[1]: *** Warning: File `GUITestApp.app' has modification time in 
> the
> future (2006-01-31 02:09:15.01342 > 2006-01-31 02:09:15.0127364)
>  Creating GUITestApp.app/Resources/Info-gnustep.plist...
>  Creating GUITestApp.app/Resources/GUITestApp.desktop...
> gmake[1]: warning:  Clock skew detected.  Your build may be incomplete.

I've seen this happen when the files are on a networked server and the 
server gets out-of-sync with the client.  I don't know how to fix it 
though. Sometimes it just goes away.

>     I was wondering if anyone can be a bit more specific on this. Of 
> course
> if its a tool I'm not going to use anything that expects to be able to 
> find
> bundle resources, I get that. Basically what I want to do is make a 
> tool
> that is given a path to a folder as a command line argument, then 
> loads all
> the images in that folder into NSImages, then extracts features from 
> those
> images. That is, it loops over all the pixels of the image with the 
> getPixel
> method of NSBitmapImageRep and pulls out color histogram data and 
> writes it
> to a file. I all ready have a program that does this on a Mac, but I 
> need to
> move it to Solaris, thus trying to get the GnuStep GUI stuff set-up 
> since
> the NSImage classes are in the GUI library. Although, I just noticed 
> that
> the GnuStep version of the NSBitmapImageRep class seems to be missing 
> the
> getPixel method?! Am I missing something here? That seems like *THE*
> essential method of the class, and it just doesn't have it. (?)

Well, if it works OK on a Mac, it should work fine in GNUstep.

Look at the method  -initWithFocusedViewRect: (just make rect one pixel 
big). If some one ever implemented that method, it would be implemented 
in terms of this anyway.


>     As for the tool linking against the GUI library, you mentioned some
> examples in the "Tools subdirectory of the gui library package." What 
> do you
> mean by this? Where are these? I haven't download anything, as I don't 
> have
> the privileges to set this type of stuff up on the machines that I'm 
> using.
> I have to rely on the support folks to install stuff. Is there some 
> place on
> the web I can get these examples that show a tool using AppKit? 
> Basically I
> just need to see the makefile, or how to compile manually (where I can 
> just
> specify the -lgnustep-gui) rather than using those complicated 
> makefiles.
Look at ftp://ftp.gnustep.org/pub/gnustep/core/

for the gnustep-gui packages.  You don't need to install anything, just 
look at the source.