pythoncard-users

[Pythoncard-users] How to subclass Minimal?

[Alec B. <wry...@gm...>]

I'm trying to subclass the Minimal example so I can make the window
always on top. I'm having trouble doing it though. Can someone
possibly point out what I'm doing wrong?

Here's my stripped down example, called test.py. Note the 3rd
parameter currently called "dummy" in the init statement, which might
be a source of troubule. Also I was wondering if I need to define a
panel? And if so, does it need to have a specific name?

from PythonCard import model
import wx

class Minimal(model.Background):

    def __init__(self, parent, dummy):

        wx.Frame.__init__(self, parent, -1, "Test", style =  wx.STAY_ON_TOP)
        #panel = wx.Panel(self, -1)

        self.Show()


if __name__ == '__main__':
    app = model.Application(Minimal)
    app.MainLoop()


Here's the resource file, called test.rsrc.py:

{'application':{'type':'Application',
          'name':'Minimal',
    'backgrounds': [
    {'type':'Background',
          'name':'bgMin',
          'title':u'Tester',
          'size':(403, 371),
          'backgroundColor':(0, 0, 0),
          'style':['resizeable'],

         'components': [

{'type':'StaticText',
    'name':'Testing',
    'position':(151, 131),
    'font':{'faceName': u'Tahoma', 'family': 'sansSerif', 'size': 12},
    'foregroundColor':(255, 255, 0, 255),
    'text':u'Testing',
    },

] # end components
} # end background
] # end backgrounds
} }

Re: [Pythoncard-users] How to subclass Minimal?

[XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX]

On Mon, 29 Dec 2008 23:22:55 -0800 "Alec Bennett" <wry...@gm...>
wrote:

> I'm trying to subclass the Minimal example so I can make the window
> always on top. I'm having trouble doing it though. Can someone
> possibly point out what I'm doing wrong?

If I understand the PythonCard model.py source correctly, the
Application object initializes the Background object but you have
created an __init__ method in Minimal so that gets called instead.
You don't then call the Background __init__ which does various other
start-up tasks and I'm guessing that is why the application does not
work.

(You don't say what is wrong when you run it, but trying it here I just
get a blank window).

If you just want to add the STAY_ON_TOP style then try the
following...it seems to work here:

from PythonCard import model

class Minimal(model.Background):
    
    def __init__(self, aParent, aBgRsrc):
        aBgRsrc.style = ['wx.DEFAULT_FRAME_STYLE','wx.STAY_ON_TOP']
        model.Background.__init__(self, aParent, aBgRsrc)
        

if __name__ == '__main__':
    app = model.Application(Minimal)
    app.MainLoop()

aBgRsrc is the application bacground resource properties from the
resource file. Adding an extra style is a bit tricky, but since you
have set it to 'resizeable' and the Background object translates that
into wx.DEFAULT_FRAME_STYLE you can replace that with the two item
list. The Background object has been coded to eval() each item in the
list (hence I've made them strings) and bitwise OR them.

-- 
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Re: [Pythoncard-users] How to subclass Minimal?

[Alec B. <wry...@gm...>]

Thank you! Works like a proverbial charm.

To anyone else coming down this road, here's how to make a PythonCard
app always on top:


test.py:

from PythonCard import model
import wx

class Minimal(model.Background):

   def __init__(self, aParent, aBgRsrc):
       aBgRsrc.style = ['wx.DEFAULT_FRAME_STYLE','wx.STAY_ON_TOP']
       model.Background.__init__(self, aParent, aBgRsrc)

if __name__ == '__main__':
    app = model.Application(Minimal)
    app.MainLoop()


test.rsrc.py

{'application':{'type':'Application',
          'name':'Minimal',
    'backgrounds': [
    {'type':'Background',
          'name':'bgMin',
          'title':u'Tester',
          'size':(403, 371),
          'backgroundColor':(0, 0, 0),
          'style':['resizeable'],

         'components': [

{'type':'StaticText',
    'name':'Testing',
    'position':(151, 131),
    'font':{'faceName': u'Tahoma', 'family': 'sansSerif', 'size': 12},
    'foregroundColor':(255, 255, 0, 255),
    'text':u'Testing',
    },

] # end components
} # end background
] # end backgrounds
} }

Re: [Pythoncard-users] How to subclass Minimal?

[Alec B. <wry...@gm...>]

The final thing I need to be able to do is pass the app a parameter.
Can you see an easy way to do that? Something like this... Note the
"test" and "dummy" below. This fails with "No such file or directory:
'test'".

from PythonCard import model
import wx

class Minimal(model.Background):

   def __init__(self, aParent, dummy, aBgRsrc):

       aBgRsrc.style = ['wx.DEFAULT_FRAME_STYLE','wx.STAY_ON_TOP']
       model.Background.__init__(self, aParent, dummy, aBgRsrc)

if __name__ == '__main__':

    app = model.Application(Minimal, "test")
    app.MainLoop()

Re: [Pythoncard-users] How to subclass Minimal?

[XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX]

On Tue, 30 Dec 2008 12:24:20 -0800 "Alec Bennett" <wry...@gm...>
wrote:

> The final thing I need to be able to do is pass the app a parameter.
> Can you see an easy way to do that? Something like this... Note the
> "test" and "dummy" below. This fails with "No such file or directory:
> 'test'".

That'll be because the Application object expects the second parameter
passed to it to be a resource filename that already exists. You can
then specify something other than minimal.rsrc.py.

You could subclass again...

from PythonCard import model

class Minimal(model.Background):
    
    def __init__(self, aParent, aBgRsrc):
        aBgRsrc.style = ['wx.DEFAULT_FRAME_STYLE','wx.STAY_ON_TOP']
        model.Background.__init__(self, aParent, aBgRsrc)
        
        
class MyApplication(model.Application):
    
    def __init__(self, frameClass, param1):
        print "This should go to console: %s" % (param1,)
        model.Application.__init__(self, frameClass)        
        

if __name__ == '__main__':
    app = MyApplication(Minimal, "test")
    app.MainLoop()

The problem is, if you want to pass "test" into Minimal through the
__init__ methods you're probably going to have to hack model.py. You
could be lazy and set up a global variable. Pythoncard doesn't really
expect you to be passing in parameters from the command line, for
example, and really expects stuff to arrive either via the resource
file or via the on_initialize() method in the Minimal object. Again
though, whenever I've done that, it's tended to be via a configuration
file, e.g. to switch on debugging via a .INI file.

-- 
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