Re: getting an absolute file path

[Wolfgang Lux]

Riccardo Mottola wrote:

> Hi,
> 
> Wolfgang Lux wrote:
>> Riccardo Mottola wrote:
>> 
>>> Hi,
>>> 
>>> I am chasing a strange error in ProjectCenter that drives me crazy.
>>> 
>>> Depending on how a project was opened, PC misbehaved. I tracked it down to 
>>> certain paths depending on the project path being absolute vs. relative. 
>>> Especially creations!
>>> 
>>> What's the best way (= portable also to windows) to get the absolute path 
>>> of a file or directory? I looked for methods in NSFileManager but found no 
>>> easy route.
>> 
>> In order to determine the absolute path you would need to know the base 
>> directory for the relative path. In case this is the directory of your 
>> project, you should query the NSDocument class or remember the path that was 
>> used to open the project. This is always an absolute path. You then can 
>> append the relative path to that directory using 
>> -stringByAppendingPathComponent:.
>> 
> ProjectCenter triess to remember the path that was used to open the project.
> 
> However from a bit of debugging, I found that if "ProjectCenter file.x" is 
> invoked on the command line,
> 
> - (BOOL)application:(NSApplication *)application openFile:(NSString *)fileName
> 
> fileName results in just the file name, not the absolute path.

Hmmm, I would have expected NSApplication to always pass an absolute path to 
that method, but you can work around that by using some thing like
  if (![fileName isAbsolutePath])
    {
      NSString *cwd = [[NSFileManager defaultManager] currentDirectoryPath];
      fileName = [cwd stringByAppendingPathComponent: fileName];
    }
in your delegate implementation.

Wolfgang