Mercurial > fife-parpg

annotate engine/extensions/pychan/attrs.py @ 360:11896fe26c1d

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Added SoundEmitter::setCallback(). The callback will be called when a stream has finished playing. The SWIG interface for this function currently does NOT exist. [t:346]
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 02 Oct 2009 14:05:08 +0000
parents dfd48d49c044
children
rev   line source
228
756b895e1dab Merged unicode-support back into trunk.
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1 # -*- coding: utf-8 -*-
331
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2
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3 # ####################################################################
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4 # Copyright (C) 2005-2009 by the FIFE team
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5 # http://www.fifengine.de
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6 # This file is part of FIFE.
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7 #
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8 # FIFE is free software; you can redistribute it and/or
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9 # modify it under the terms of the GNU Lesser General Public
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10 # License as published by the Free Software Foundation; either
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11 # version 2.1 of the License, or (at your option) any later version.
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12 #
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13 # This library is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # Lesser General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU Lesser General Public
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19 # License along with this library; if not, write to the
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20 # Free Software Foundation, Inc.,
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21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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22 # ####################################################################
0
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23
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24 """
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25 Simple error checking attributes.
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26
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27 This module defines a set of Attribute classes
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28 which you can use to define possible values
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29 an attribute of an object accepts.
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30
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31 Usage::
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32 class SomeObject:
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33 nameAttr, posAttr = [ Attr("name"), PointAttr("pos") ]
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06dddc96ce54 * Fixed some space and tab mixing
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34
0
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35 obj = SomeObject()
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36 obj.nameAttr.set(obj,"newName")
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37 obj.posAttr.set(obj,"89,89")
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38
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39 This is most useful for error checking parsing and defining
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40 accepted attributes in classes and is used by pychan internally.
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41
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42 """
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43
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44 from exceptions import ParserError
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45
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46 class Attr(object):
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47 """
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48 A simple text attribute.
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49 """
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50 def __init__(self,name):
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51 self.name = name
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52
0
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53 def set(self,obj,value):
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54 """
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55 Parses the given value with the L{parse} method
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56 and sets it on the given instance with C{setattr}.
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57 """
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58 value = self.parse(value)
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59 setattr(obj,self.name,value)
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60
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61 def parse(self,value):
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62 """
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63 Parses a value and checks for errors.
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64 Override with specialiced behaviour.
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65 """
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66 return str(value)
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67
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68 class UnicodeAttr(Attr):
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69 def parse(self,value):
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70 """
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71 Parses a value and checks for errors.
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72 Override with specialiced behaviour.
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73 """
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74 return unicode(value)
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75
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76
0
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77 class PointAttr(Attr):
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78 def parse(self,value):
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79 try:
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80 x,y = tuple(map(int,str(value).split(',')))
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81 return x,y
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82 except:
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83 raise ParserError("Expected a comma separated list of two integers.")
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84
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85 class ColorAttr(Attr):
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86 def parse(self,value):
123
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87 a = 255
0
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88 try:
123
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89 try:
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90 r,g,b,a = tuple(map(int,str(value).split(',')))
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91 for c in (r,g,b,a):
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92 if not 0 <= c < 256: raise ParserError("Expected a color (Failed: 0 <= %d <= 255)" %c)
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93 except:
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94 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
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95 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
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96 if not 0 <= c < 256: raise ParserError("Expected a color (Failed: 0 <= %d <= 255)" %c)
0
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97 except:
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98 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
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99
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100 return r,g,b,a
0
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101
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102 class IntAttr(Attr):
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103 def parse(self,value):
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104 try:
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105 return int(value)
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106 except:
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107 raise ParserError("Expected a single integer.")
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108
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109 class BoolAttr(Attr):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
110 def parse(self,value):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
111 try:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 value = int(value)
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
113 if value not in (0,1):
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
114 raise ParserError("Expected a 0 or 1.")
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
115 return value
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
116 except:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117 raise ParserError("Expected a 0 or 1.")
188
06dddc96ce54 * Fixed some space and tab mixing
nihathrael@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 143
diff changeset
118
143
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
119 class FloatAttr(Attr):
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
120 def parse(self, value):
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
121 try:
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
122 return float(value)
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
123 except:
fe7ff4808529 - added guichan slider widget to pychan gui wrapper
chewie@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 129
diff changeset
124 raise ParseError("Expected a float.")