Mercurial > traipse_dev
annotate orpg/mapper/images.py @ 48:0aeee1992423 traipse_dev
This updates fixes three things. Branch names are now current to your udpate
and updates take place before the program starts and minor error in update
code (unremarked, removed '.')
author | sirebral |
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date | Thu, 06 Aug 2009 04:26:02 -0500 |
parents | 88cea66228d6 |
children | c54768cffbd4 |
rev | line source |
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0
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1 # Copyright (C) 2000-2001 The OpenRPG Project |
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2 # |
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3 # openrpg-dev@lists.sourceforge.net |
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4 # |
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5 # This program is free software; you can redistribute it and/or modify |
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6 # it under the terms of the GNU General Public License as published by |
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7 # the Free Software Foundation; either version 2 of the License, or |
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8 # (at your option) any later version. |
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9 # |
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10 # This program is distributed in the hope that it will be useful, |
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 # GNU General Public License for more details. |
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14 # |
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15 # You should have received a copy of the GNU General Public License |
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16 # along with this program; if not, write to the Free Software |
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17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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18 # -- |
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19 # |
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20 # File: mapper/images.py |
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21 # Author: OpenRPG |
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22 # Maintainer: |
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23 # Version: |
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24 # $Id: images.py,v 1.21 2007/12/11 04:07:15 digitalxero Exp $ |
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25 # |
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26 # Description: |
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27 # |
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28 __version__ = "$Id: images.py,v 1.21 2007/12/11 04:07:15 digitalxero Exp $" |
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29 |
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30 import urllib |
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31 import Queue |
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32 import thread |
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33 from threading import Lock |
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34 import time |
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35 from orpg.orpg_wx import * |
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36 from orpg.orpgCore import * |
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37 |
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38 def singleton(cls): |
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39 instances = {} |
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40 def getinstance(): |
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41 if cls not in instances: |
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42 instances[cls] = cls() |
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43 return instances[cls] |
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44 return getinstance() |
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45 |
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46 class ImageHandlerClass(object): |
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47 __cache = {} |
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48 __fetching = {} |
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49 __queue = Queue.Queue(0) |
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50 __lock = Lock() |
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51 |
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52 def load(self, path, image_type, imageId): |
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53 # Load an image, with a intermideary fetching image shown while it loads in a background thread |
20 | 54 if self.__cache.has_key(path): return wx.ImageFromMime(self.__cache[path][1], |
55 self.__cache[path][2]).ConvertToBitmap() | |
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56 if not self.__fetching.has_key(path): |
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57 self.__fetching[path] = True |
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58 #Start Image Loading Thread |
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59 thread.start_new_thread(self.__loadThread, (path, image_type, imageId)) |
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60 else: |
20 | 61 if self.__fetching[path] is True: thread.start_new_thread(self.__loadCacheThread, (path, image_type, imageId)) |
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62 return wx.Bitmap(open_rpg.get_component("dir_struct")["icon"] + "fetching.png", wx.BITMAP_TYPE_PNG) |
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63 |
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64 def directLoad(self, path): |
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65 # Directly load an image, no threads |
20 | 66 if self.__cache.has_key(path): return wx.ImageFromMime(self.__cache[path][1], |
67 self.__cache[path][2]).ConvertToBitmap() | |
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68 uriPath = urllib.unquote(path) |
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69 try: |
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70 d = urllib.urlretrieve(uriPath) |
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71 # We have to make sure that not only did we fetch something, but that |
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72 # it was an image that we got back. |
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73 if d[0] and d[1].getmaintype() == "image": |
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74 self.__cache[path] = (path, d[0], d[1].gettype(), None) |
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75 return wx.ImageFromMime(self.__cache[path][1], self.__cache[path][2]).ConvertToBitmap() |
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76 else: |
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77 open_rpg.get_component('log').log("Image refused to load or URI did not reference a valid image: " + path, |
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78 ORPG_GENERAL, True) |
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79 return None |
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80 except IOError: |
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81 open_rpg.get_component('log').log("Unable to resolve/open the specified URI; image was NOT loaded: " + path, |
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82 ORPG_GENERAL, True) |
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83 return None |
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84 |
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85 def cleanCache(self): |
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86 # Shrinks the Cache down to the proper size |
20 | 87 try: cacheSize = int(open_rpg.get_component('settings').get_setting("ImageCacheSize")) |
88 except: cacheSize = 32 | |
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89 cache = self.__cache.keys() |
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90 cache.sort() |
20 | 91 for key in cache[cacheSize:]: del self.__cache[key] |
0
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92 |
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93 def flushCache(self): |
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94 # This function will flush all images contained within the image cache. |
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95 self.__lock.acquire() |
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96 try: |
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97 keyList = self.__cache.keys() |
20 | 98 for key in keyList: del self.__cache[key] |
99 finally: self.__lock.release() | |
0
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100 urllib.urlcleanup() |
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101 |
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102 #Private Methods |
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103 def __loadThread(self, path, image_type, imageId): |
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104 uriPath = urllib.unquote(path) |
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105 self.__lock.acquire() |
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106 try: |
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107 d = urllib.urlretrieve(uriPath) |
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108 # We have to make sure that not only did we fetch something, but that |
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109 # it was an image that we got back. |
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110 if d[0] and d[1].getmaintype() == "image": |
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111 self.__cache[path] = (path, d[0], d[1].gettype(), imageId) |
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112 self.__queue.put((self.__cache[path], image_type, imageId)) |
20 | 113 if self.__fetching.has_key(path): del self.__fetching[path] |
0
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114 else: |
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115 open_rpg.get_component('log').log("Image refused to load or URI did not reference a valid image: " + path, |
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116 ORPG_GENERAL, True) |
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117 del self.__fetching[path] |
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118 except IOError: |
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119 del self.__fetching[path] |
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120 open_rpg.get_component('log').log("Unable to resolve/open the specified URI; image was NOT laoded: " + path, |
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121 ORPG_GENERAL, True) |
20 | 122 finally: self.__lock.release() |
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123 |
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124 def __loadCacheThread(self, path, image_type, imageId): |
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125 if self.__cache.has_key(path): |
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126 try: |
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127 st = time.time() |
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128 while self.__fetching.has_key(path) and self.__fetching[path] is not False: |
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129 time.sleep(0.025) |
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130 if (time.time()-st) > 120: |
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131 open_rpg.get_component('log').log("Timeout: " + path, ORPG_GENERAL, True) |
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132 break |
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133 except: |
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134 del self.__fetching[path] |
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135 open_rpg.get_component('log').log("Unable to resolve/open the specified URI; image was NOT loaded: " + path, ORPG_GENERAL, True) |
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136 return |
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137 self.__lock.acquire() |
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138 try: |
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139 open_rpg.get_component('log').log("Adding Image to Queue from Cache: " + str(self.__cache[path]), ORPG_DEBUG) |
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140 self.__queue.put((self.__cache[path], image_type, imageId)) |
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141 finally: self.__lock.release() |
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142 |
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143 #Property Methods |
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144 def _getCache(self): |
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145 return self.__cache |
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146 |
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147 def _getQueue(self): |
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148 return self.__queue |
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149 |
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150 #Properties |
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151 Cache = property(_getCache) |
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152 Queue = property(_getQueue) |
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153 |
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154 ImageHandler = singleton(ImageHandlerClass) |