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annotate engine/extensions/pychan/attrs.py @ 143:fe7ff4808529

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- added guichan slider widget to pychan gui wrapper - added new attribute class to attrs.py (FloatAttr) - added demo to pychan demo client NOTE: - demo isn't nice yet - but I'll refactor the client anyway
author chewie@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 07 Oct 2008 02:12:57 +0000
parents 9a1529f9625e
children 06dddc96ce54
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 # coding: utf-8
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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2
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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3 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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4 Simple error checking attributes.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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5
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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6 This module defines a set of Attribute classes
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 which you can use to define possible values
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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8 an attribute of an object accepts.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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9
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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10 Usage::
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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11 class SomeObject:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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12 nameAttr, posAttr = [ Attr("name"), PointAttr("pos") ]
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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13
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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14 obj = SomeObject()
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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15 obj.nameAttr.set(obj,"newName")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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16 obj.posAttr.set(obj,"89,89")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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17
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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18 This is most useful for error checking parsing and defining
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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19 accepted attributes in classes and is used by pychan internally.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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20
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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21 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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22
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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23 from exceptions import ParserError
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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24
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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25 class Attr(object):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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26 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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27 A simple text attribute.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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28 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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29 def __init__(self,name):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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30 self.name = name
129
9a1529f9625e * Indentation patch by GreyGhost
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31
0
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32 def set(self,obj,value):
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33 """
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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34 Parses the given value with the L{parse} method
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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35 and sets it on the given instance with C{setattr}.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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36 """
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37 value = self.parse(value)
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38 setattr(obj,self.name,value)
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39
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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40 def parse(self,value):
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41 """
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42 Parses a value and checks for errors.
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43 Override with specialiced behaviour.
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44 """
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45 return str(value)
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46
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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47 class PointAttr(Attr):
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48 def parse(self,value):
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49 try:
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50 x,y = tuple(map(int,str(value).split(',')))
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51 return x,y
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52 except:
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53 raise ParserError("Expected a comma separated list of two integers.")
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54
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55 class ColorAttr(Attr):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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56 def parse(self,value):
123
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
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57 a = 255
0
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58 try:
123
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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59 try:
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
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60 r,g,b,a = tuple(map(int,str(value).split(',')))
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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61 for c in (r,g,b,a):
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
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62 if not 0 <= c < 256: raise ParserError("Expected a color (Failed: 0 <= %d <= 255)" %c)
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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63 except:
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
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64 r,g,b = tuple(map(int,str(value).split(',')))
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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65 for c in (r,g,b):
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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66 if not 0 <= c < 256: raise ParserError("Expected a color (Failed: 0 <= %d <= 255)" %c)
0
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67 except:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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68 raise ParserError("Expected an color.")
123
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
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69
ec653fde64d3 - modified pychan to accept r,g,b,a colors - default of a = 255, so you also just can use r, g, b
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
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70 return r,g,b,a
0
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71
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72 class IntAttr(Attr):
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73 def parse(self,value):
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74 try:
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75 return int(value)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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76 except:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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77 raise ParserError("Expected a single integer.")
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78
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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79 class BoolAttr(Attr):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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80 def parse(self,value):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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81 try:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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82 value = int(value)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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83 if value not in (0,1):
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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84 raise ParserError("Expected a 0 or 1.")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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85 return value
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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86 except:
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87 raise ParserError("Expected a 0 or 1.")
143
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
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88
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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89 class FloatAttr(Attr):
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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90 def parse(self, value):
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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diff changeset
91 try:
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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92 return float(value)
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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93 except:
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
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94 raise ParseError("Expected a float.")