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Re: [Pythoncard-users] I'm learning - added .rsrc awareness to 'FindFiles'
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From: Kevin A. <al...@se...> - 2004-09-16 21:46:44
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On Sep 16, 2004, at 12:53 PM, normanwinn wrote:
> Hi,
>
> I was having trouble getting Walkthough 3 to work. Having already
> posted I felt too guilty to admit I hadn't even got that far. I
> trawled the web for hints but didn't get anywhere. Then I played with
> 'FindFiles'. I soon wanted it to open resource files in the resource
> editor (no doubt someone will come back and tell me that was already
> possible). So I decided to see if I could add this functionality
> myself.
>
> First I had to find the '.rsrc' files. To do this I just searched for:
>
> { 'application':{ 'type':'Application',
>
> not elegant, but it worked.
>
> I first found where the highlighted file was opened which was inside
> this function (only showing the part I played with):
>
>> def editFile(self, filename, lineno=None):
>> if filename == '':
>> return
>>
>> log.debug("filename: " + filename + " lineno: " +
>> str(lineno))
>> # edit Python scripts with codeEditor
>> # everything else with textEditor
>> # the list of extensions and associated programs to
>> # open with should be user settable
>> if os.path.splitext(filename)[-1] in ['.py', '.pyw']:
>> program = os.path.join("..", "codeEditor",
>> "codeEditor.pyw")
>> if not os.path.exists(program):
>> program = os.path.join("..", "codeEditor",
>> "codeEditor.py")
>> else:
>> program = os.path.join("..", "textEditor",
>> "textEditor.pyw")
>> if not os.path.exists(program):
>> program = os.path.join("..", "textEditor",
>> "textEditor.py")
>> # throw an exception if textEditor can't be found?
>> log.debug('program: ' + program)
>
>
> I had made a copy of the 'FindFiles' directory content and put it
> elsewhere. It took me a while to fathom the FindFiles depends on
> hanging off the 'Tools' folder to work. I then moved my copy there and
> started to get somewhere.
>
> I tried adding a condition to so that I could operate on '.rsrc.py'
> files. The interactive shell is a great tool for learning. I imported
> 'os' and worked out what 'os.path.splitext' does. I copied a path and
> assigned it to a variable (still in the shell) and finally found that:
>
> os.path.splitext(filename)[0][-5:]
>
> gave me the '.rsrc' I was trying for.
>
> I was not successful at getting the resource editor to run so I tried
> assigning the above to a variable and just to show it with a 'print'.
> Evidently, this produced an error.
>
> I saw all those 'log.debug' lines so went about finding which of the
> imported modules it came from. Once I found it I imported this in the
> shell and looked for help on how 'log' worked. Nice and simple, so I
> put:
>
> log.enable()
>
> in the function 'on_initialize' and I had log information pouring out
> to me in the shell.
>
> This told me that I was extracting the right string. I then divined my
> error. I was using 'is' instead of '==' to test my string. I changed
> it and it worked. I felt real proud of myself when the resource editor
> opened up.
>
> So, if anyone is interested here is what those lines above became:
>
>> def editFile(self, filename, lineno=None):
>> if filename == '':
>> return
>>
>> log.debug("filename: " + filename + " lineno: " +
>> str(lineno))
>> # edit Python scripts with codeEditor
>> # everything else with textEditor
>> # the list of extensions and associated programs to
>> # open with should be user settable
>> rsrcFile = os.path.splitext(filename)[0][-5:]
>> log.debug('rsrcFile: ' + rsrcFile)
>> if rsrcFile == '.rsrc':
>> program = os.path.join("..", "resourceEditor",
>> "resourceEditor.py")
>> if not os.path.exists(program):
>> program = os.path.join("..", "resourceEditor",
>> "resourceEditor.py")
>> else:
>> if os.path.splitext(filename)[-1] in ['.px', '.pyx']:
>> program = os.path.join("..", "codeEditor",
>> "codeEditor.pyw")
>> if not os.path.exists(program):
>> program = os.path.join("..", "codeEditor",
>> "codeEditor.py")
>> else:
>> program = os.path.join("..", "textEditor",
>> "textEditor.pyw")
>> if not os.path.exists(program):
>> program = os.path.join("..", "textEditor",
>> "textEditor.py")
>
>
> I realise that using a variable to get my string is not very elegant
> but I did it that way to isolate my error.
>
> I am relating this partly as one test I have set myself is to see if I
> can learn PythonCard and Python 'top down'. I learnt Object Pascal in
> Delphi that way and had thought it would not be possible. Seems I am
> wrong,
I'm glad you were able to work this out. I haven't had resourceEditor
support in findfiles previously, because usually I want to edit the
.rsrc.py files using the codeEditor to make some quick change. However,
I think it would be a good option that could be toggled on and off, so
I'll look at adding that. In the meantime, all you need to do is a
simple string check, in fact, I'm not sure why I'm not doing this in
the existing code, except maybe the current way seemed cleaner than
filename.endswith('.py) or filename.endswith('.pyw').
if filename.endswith('.rsrc.py'):
program = os.path.join("..", "resourceEditor",
"resourceEditor.py")
elif os.path.splitext(filename)[-1] in ['.py', '.pyw']:
...
Obviously, you can put the additional code in to check for a
resourceEditor.pyw file, but the main thing is to just use the endswith
string method and make sure that check is done before the .py/.pyw
check.
And just in case it wasn't obvious, in the File types: field of Find
Files, just search for *.rsrc.py files.
> Norman
>
> PS I still can't get the child window to open. My script runs OK but
> as soon as I hit 'Increment' or 'Decrement' I get
>
What is the actual error? I haven't looked at that walkthrough in a
while, so it hasn't been updated for release 0.8. Make sure to change
on_openBackground to on_initialize.
ka
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