Mercurial > fife-parpg

annotate engine/extensions/pythonize.py @ 66:00b3c07db548

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arrgh, issues with commits, fixed now, I hope, this is the source for the skull_pole model.
author kaelisebonrai@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 17 Jul 2008 05:32:48 +0000
parents 4a0efb7baf70
children 9a1529f9625e
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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1 # coding: utf-8
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2
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3 """\
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4 Pythonize FIFE
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5
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6 Import this extension to get a more
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 pythonic interface to FIFE.
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8
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9 Currently it implements the following
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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10 conveniences:
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11
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12 * FIFE Exceptions print their message.
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13 * Automatic property generation for:
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14 * fife.Engine
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15 * fife.Instance
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16 * fife.Image
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17 * fife.Animation
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18 * fife.Point
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19 * fife.Rect
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20
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21 """
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22
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23 import fife, re
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24
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25 __all__ = ()
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26
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27 fife.Exception.__str__ = fife.Exception.getMessage
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28 def _Color2Str(c):
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29 return 'Color(%s)' % ','.join(map(str,(c.r,c.g,c.b,c.a)))
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30 fife.Color.__str__ = _Color2Str
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31
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32 classes = [ fife.Engine, fife.Instance, fife.Point, fife.Rect, fife.Image, fife.Animation,
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33 fife.RenderBackend, fife.Event, fife.Command, fife.Container ]
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34
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35 def createProperties():
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36 """ Autocreate properties for getXYZ/setXYZ functions.
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37 """
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38 try:
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39 import inspect
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40 getargspec = inspect.getargspec
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41 except ImportError:
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42 print "Pythonize: inspect not available - properties are generated with dummy argspec."
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43 getargspec = lambda func : ([],'args',None,None)
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44
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45 def isSimpleGetter(func):
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46 if not callable(func):
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47 return False
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48 try:
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49 argspec = getargspec(func)
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50 return not (argspec[0] or [s for s in argspec[2:] if s])
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51 except TypeError, e:
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52 #print func, e
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53 return False
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54
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55 def createNames(name):
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56 for prefix in ('get', 'is', 'are'):
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57 if name.startswith(prefix):
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58 new_name = name[len(prefix):]
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59 break
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60 settername = 'set' + new_name
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61 propertyname = new_name[0].lower() + new_name[1:]
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62 return settername, propertyname
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63
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64 getter = re.compile(r"^(get|are|is)[A-Z]")
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65 for class_ in classes:
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66 methods = [(name,attr) for name,attr in class_.__dict__.items()
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67 if isSimpleGetter(attr) ]
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68 setmethods = [(name,attr) for name,attr in class_.__dict__.items() if callable(attr)]
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69 getters = []
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70 for name,method in methods:
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71 if getter.match(name):
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72 getters.append((name,method))
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73 settername, propertyname = createNames(name)
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74 setter = dict(setmethods).get(settername,None)
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75 #print name, settername, "--->",propertyname,'(',method,',',setter,')'
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76 setattr(class_,propertyname,property(method,setter))
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77 if not getters: continue
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78
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79 # We need to override the swig setattr function
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80 # to get properties to work.
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81 class_._property_names = set([name for name,method in getters])
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82 def _setattr_wrapper_(self,*args):
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83 if name in class_._property_names:
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84 object.__setattr__(self,*args)
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85 else:
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86 class_.__setattr__(self,*args)
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87 class_.__setattr__ = _setattr_wrapper_
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88
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89 createProperties()