Re: [Pyobjc-dev] CoreText CTFontCreatePathForGlyph :: not defined?
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Re: [Pyobjc-dev] CoreText CTFontCreatePathForGlyph :: not defined?
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From: Ronald O. <ron...@ma...> - 2009-04-26 10:13:43
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On 26 Apr, 2009, at 11:01, James Trankelson wrote:
> Gauging from the fact that this thread has gone stale, Is it safe to
> assume that this just isn't possible with pyobjc?
It is possible, I've been busy with other stuff and others don't seem
to feel qualified enough to anwser your question.
My current guess is that you have succeeded in partially installing
the latest version of PyObjC. Check you /Library/Python/2.5/site-
packages directory and remove all traces of pyobjc-2.2 in there
(pyobjc-core, pyobjc-framework-*). If you do that the ord('...)'
version should work.
If it doesn't you'll have to wait for a proper release of pyobjc 2.2.
Ronald
>
> -jt
>
> On Thu, Apr 23, 2009 at 9:17 AM, James Trankelson <tra...@gm...
> > wrote:
>> Ok, now using ord:
>>
>> v, gl = CTFontGetGlyphsForCharacters(font, ord(u'x'), None, 1)
>>
>> Produces:
>>
>> TypeError: Expecting UniChar
>>
>> -jt
>>
>> On Thu, Apr 23, 2009 at 7:43 AM, Ronald Oussoren <ron...@ma...
>> > wrote:
>>>
>>> On 23 Apr, 2009, at 0:55, James Trankelson wrote:
>>>
>>>> Ok, so in order to do this, I need to install the version in the
>>>> trunk.
>>>
>>> You don't have to install the version in the trunk, if you
>>> manually convert
>>> unicode characters to integers (using "ord", rather than the unichar
>>> function I mentioned yesterday)
>>>>
>>>> I hate to say it, but that's causing me trouble as well...
>>>
>>> Phew, I'm glad that didn't work. Please don't install PyObjC 2.2
>>> in the
>>> system install of Python. There are differences between the
>>> current edition
>>> of PyObjC and the version included in Leoopard and I don't know if
>>> those
>>> changes are backward compatible. That means that installing an
>>> updated
>>> version of PyObjC could break system components (especially on
>>> Leopard
>>> Server).
>>>
>>> Sadly enough the version in the trunk isn't ready to be installed
>>> by new
>>> users yet, I need to do some work on packaging (makeing sure that
>>> it can be
>>> installed from source with the Python.org distribution, provide
>>> binary
>>> packages, ...).
>>>
>>> Ronald
>>>
>>>>
>>>> $ sudo easy_install pyobjc==2.2b1
>>>>
>>>> Searching for pyobjc==2.2b1
>>>> ...
>>>> Running pyobjc-2.2b1/setup.py -q bdist_egg --dist-dir
>>>> /tmp/easy_install-_86MCZ/pyobjc-2.2b1/egg-dist-tmp-Q8jX-H
>>>> The required version of setuptools (>=0.6c9) is not available, and
>>>> can't be installed while this script is running. Please install
>>>> a more recent version first, using 'easy_install -U setuptools'.
>>>>
>>>> (Currently using setuptools 0.6c7
>>>>
>>>> (/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/
>>>> lib/python))
>>>> error: Setup script exited with 2
>>>>
>>>> $ sudo easy_install -U setuptools
>>>> Searching for setuptools
>>>> Reading http://pypi.python.org/simple/setuptools/
>>>> Best match: setuptools 0.6c9
>>>> Processing setuptools-0.6c9-py2.5.egg
>>>> setuptools 0.6c9 is already the active version in easy-install.pth
>>>> Installing easy_install script to /usr/local/bin
>>>> Installing easy_install-2.5 script to /usr/local/bin
>>>>
>>>> Using /Library/Python/2.5/site-packages/setuptools-0.6c9-py2.5.egg
>>>> Processing dependencies for setuptools
>>>> Finished processing dependencies for setuptools
>>>>
>>>> $ sudo easy_install pyobjc==2.2b1
>>>>
>>>> (Same as first try)
>>>>
>>>> Is there some config file that will allow me to get this to point
>>>> to
>>>> the right setuptools?
>>>>
>>>> Thanks again.
>>>>
>>>> -jt
>>>>
>>>> On Wed, Apr 22, 2009 at 10:29 PM, Ronald Oussoren
>>>> <ron...@ma...> wrote:
>>>>>
>>>>> On 22 Apr, 2009, at 14:38, James Trankelson wrote:
>>>>>
>>>>>> Bah. Thanks. Still not quite out of the woods, though.
>>>>>>
>>>>>> Now it's not having trouble finding the function
>>>>>> (CTFontCreatePathForGlyph), but I get a new error:
>>>>>>
>>>>>> depythonifying 'short', got 'unicode' of 1
>>>>>
>>>>> I should have mentioned that, the version of pyobjc that's
>>>>> included with
>>>>> Leopard cannot do what you want it to do. You must pass
>>>>> unichar(u'a'))
>>>>> instead of u'a'. The reason for that is that "unichar" is an
>>>>> alias for
>>>>> "short int" in (Objective-)C, both result in the same metadata.
>>>>>
>>>>> The version of PyObjC that's in the subversion repository does
>>>>> know the
>>>>> difference between "unichar" and "unsigned short" using hacks in
>>>>> the
>>>>> metadata file.
>>>>>
>>>>>>
>>>>>> My usage is nearly identical to an example in cttests.py for
>>>>>> obtaining
>>>>>> a font and getting the Glyph from it:
>>>>>>
>>>>>> v, gl = CTFontGetGlyphsForCharacters(font, u'x', None, 1)
>>>>>> v = CTFontCreatePathForGlyph(font, gl[0], None)
>>>>>>
>>>>>> This leads me to wonder if the signature mentioned previously for
>>>>>> CTFontCreatePathForGlyph was incorrect:
>>>>>>
>>>>>> '@@sn^{CGAffineTransform=ffffff}'
>>>>>>
>>>>>> Unfortunately, I can't find any documentation on how to map the
>>>>>> signatures. For someone that knows, is this signature correct?
>>>>>
>>>>> The signature is correct. "s" is the encoding for both "short
>>>>> int" and
>>>>> "unichar".
>>>>>
>>>>> Ronald
>>>>>
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> -jt
>>>>>>
>>>>>>
>>>>>> On Wed, Apr 22, 2009 at 10:19 AM, Petr Mifek
>>>>>> <pet...@an...> wrote:
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> James, import CoreText is missing there.
>>>>>>>
>>>>>>> Cheers, Petr
>>>>>>>
>>>>>>> James Trankelson wrote:
>>>>>>>>
>>>>>>>> It seems like some names can't be found. CoreText is one of
>>>>>>>> them.
>>>>>>>>
>>>>>>>> from CoreText import *
>>>>>>>> objc.loadBundleFunctions(CoreText.__bundle__, globals(), [
>>>>>>>> ('CTFontCreatePathForGlyph',
>>>>>>>> '@@sn^{CGAffineTransform=ffffff}')
>>>>>>>> ], False)
>>>>>>>>
>>>>>>>> Produces: NameError: name 'CoreText' is not defined
>>>>>>>>
>>>>>>>> I tried manually loading the bundle as follows:
>>>>>>>>
>>>>>>>> objc.loadBundle("CoreText", globals(),
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> bundle_path=objc.pathForFramework(u'/Developer/SDKs/
>>>>>>>> MacOSX10.5.sdk/System/Library/Frameworks/
>>>>>>>> ApplicationServices.framework/Versions/A/Frameworks/
>>>>>>>> CoreText.framework'))
>>>>>>>>
>>>>>>>> Which also fails.
>>>>>>>>
>>>>>>>> -jt
>>>>>>>>
>>>>>>>> On Wed, Apr 22, 2009 at 7:22 AM, Ronald Oussoren
>>>>>>>> <ron...@ma...>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> On 21 Apr, 2009, at 20:59, James Trankelson wrote:
>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> I'm trying to do some CoreText suff (10.5). Most of the
>>>>>>>>>> calls are
>>>>>>>>>> fine, but one fails:
>>>>>>>>>>
>>>>>>>>>> global name 'CTFontCreatePathForGlyph' is not defined
>>>>>>>>>>
>>>>>>>>>> Is there any way around this?
>>>>>>>>>
>>>>>>>>> Which version of PyObjC do you use? I guess it's the one
>>>>>>>>> included in
>>>>>>>>> Leopard, that seems to mis the symbol while PyObjC 2.2 does
>>>>>>>>> have it.
>>>>>>>>>
>>>>>>>>> Adding a new function can be done using
>>>>>>>>> objc.loadBundleFunctions:
>>>>>>>>>
>>>>>>>>> import objc
>>>>>>>>> import CoreText
>>>>>>>>> objc.loadBundleFunctions(CoreText.__bundle__, globals(), [
>>>>>>>>> ('CTFontCreatePathForGlyph',
>>>>>>>>> '@@sn^{CGAffineTransform=ffffff}')
>>>>>>>>> ], False)
>>>>>>>>>
>>>>>>>>> The code above (untested) should add
>>>>>>>>> 'CTFontCreatePathForGlyph' to
>>>>>>>>> the
>>>>>>>>> globals dictionary.
>>>>>>>>>
>>>>>>>>> Ronald
>>>>>>>>>>
>>>>>>>>>> Thanks
>>>>>>>>>>
>>>>>>>>>> -jt
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
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>>>>>>>>>> _______________________________________________
>>>>>>>>>> Pyobjc-dev mailing list
>>>>>>>>>> Pyo...@li...
>>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/pyobjc-dev
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>> Stay on top of everything new and different, both inside and
>>>>>>>> around
>>>>>>>> Java
>>>>>>>> (TM) technology - register by April 22, and save
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>>>>>>>
>>>>>
>>>>>
>>>
>>>
>>
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