[Pyobjc-dev] Re: Fwd: NSString.drawAtPoint_withAttributes_()

[Just v. R. <ju...@le...>]

Dinu Gherman wrote:

> in order to use print some text on an NSView I found out I need to do
> first this to have access to the drawAtPoint_withAttributes_() which
> is defined in some NSStringAddition category or so of AppKit:
>
>   from Foundation import NSString
>   from AppKit import *
>
> First question is: how to do this without importing *?

"import AppKit" should suffice. In fact, as long as AppKit has been
imported _somewhere_ in your app before you call this, the category
should be loaded. This should be pretty much automatic, as you can't
draw without AppKit being around to begin with.

> Then I get some string like this (not sure if a Python string would
> magically do as well):
>
>   s = NSString.stringWith...(...)
>
> but when calling
>
>   s.drawAtPoint_withAttributes_((x, y), {...})
>
> I get this error:
>
>   AttributeError: 'objc.pyobjc_unicode' object has no attribute
>   'drawAtPoint_withAttributes_'
>
> Has anybody tried writing a string that way to a view before? Is
> this a bug? I'm on PyObjC 1.0b1.

Not a bug, a feature. NStrings are presented to Python as a subclass of
"unicode", the pyobjc_unicode class. You can do what you want in two
ways:

1) Access the method through the class:

    NSString.drawAtPoint_withAttributes_(s, (x, y), {...})

2) Use the pyobjc_unicode.nsstring() method:

    s.nsstring().drawAtPoint_withAttributes_((x, y), {...})

Just