Source Code for Module arcmap.preferences

  1  ################################################################################ 
  2  # Authors: Brian Schott (Sir Alaran) 
  3  # Copyright: Brian Schott (Sir Alaran) 
  4  # Date: Sep 26 2009 
  5  # License: 
  6  # 
  7  # This program is free software: you can redistribute it and/or modify 
  8  # it under the terms of the GNU General Public License as published by 
  9  # the Free Software Foundation, either version 3 of the License, or 
 10  # (at your option) any later version. 
 11  # 
 12  # This program is distributed in the hope that it will be useful, 
 13  # but WITHOUT ANY WARRANTY; without even the implied warranty of 
 14  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 15  # GNU General Public License for more details. 
 16  # 
 17  # You should have received a copy of the GNU General Public License 
 18  # along with this program.  If not, see <http://www.gnu.org/licenses/>. 
 19  ################################################################################ 
 20   
 21   
 22  """ 
 23  Application preferences 
 24  """ 
 25   
 26  import os 
 27  import logging 
 28  import ConfigParser 
 29   
 30  import graphics 
 31  import datafiles 
 32   
 33  log = logging.getLogger("preferences") 
 34   
 35   
 36  # Zoom levels available for TileGrid instances 
 37  zoomLevels = [ 
 38          .25, 
 39          .5, 
 40          .75, 
 41          1.0, 
 42          1.5, 
 43          2.0, 
 44          4.0, 
 45  ] 
 46  zoomNormalIndex = zoomLevels.index(1.0) 
 47   
 48  visual = { 
 49          "handle_size" : 12, 
 50          "valid_outline" : 0x00ff00ff, 
 51          "valid_fill" : 0x00ff0080, 
 52          "invalid_outline" : 0xff0000ff, 
 53          "invalid_fill" : 0xff000080, 
 54          "stipple_length" : 4, 
 55          "stipple_gap" : 2, 
 56  } 
 57   
 58  # Default values for physics. (static geometry) 
 59  physics = { 
 60          "default_friction" : 1.0, 
 61          "default_restitution" : 0.0, 
 62  } 
 63   
 64  files = { 
 65          "tileset_prefix" : os.path.join("images", "tiles"), 
 66          "parallax_prefix" : os.path.join("images", "parallax"), 
 67          "data_prefix" : "", 
 68          "use_prefixes" : False 
 69  } 
 70   
 71 -def save(): 
 72          """ 
 73          Saves the user's preferences to a file named "config.ini" 
 74          """ 
 75          config = ConfigParser.SafeConfigParser() 
 76   
 77          config.add_section("Visual") 
 78          config.set("Visual", "handle_size", str(visual["handle_size"])) 
 79          config.set("Visual", "stipple_length", str(visual["stipple_length"])) 
 80          config.set("Visual", "stipple_gap", str(visual["stipple_gap"])) 
 81          config.set("Visual", "valid_outline", "0x%08x" % visual["valid_outline"]) 
 82          config.set("Visual", "valid_fill", "0x%08x" % visual["valid_fill"]) 
 83          config.set("Visual", "invalid_outline", 
 84                  "0x%08x" % visual["invalid_outline"]) 
 85          config.set("Visual", "invalid_fill", "0x%08x" % visual["invalid_fill"]) 
 86   
 87          config.add_section("Physics") 
 88          config.set("Physics", "default_restitution", 
 89                  str(physics["default_restitution"])) 
 90          config.set("Physics", "default_friction", 
 91                  str(physics["default_friction"])) 
 92   
 93          config.add_section("Files") 
 94          config.set("Files", "tileset_prefix", str(files["tileset_prefix"])) 
 95          config.set("Files", "parallax_prefix", str(files["parallax_prefix"])) 
 96          config.set("Files", "data_prefix", str(files["data_prefix"])) 
 97          config.set("Files", "use_prefixes", str(files["use_prefixes"])) 
 98   
 99          if os.path.exists(datafiles.userConfigPath()) == False: 
100                  try: 
101                          os.makedirs(datafiles.userConfigPath(), 0700) 
102                  except Exception as e: 
103                          log.error("Creation of user configuration directory failed with" + 
104                                  " error: \"%s\'""" % e) 
105                          return 
106          f = open(os.path.join(datafiles.userConfigPath(), "config.ini"), "w") 
107          config.write(f) 
108   
109 -def load(): 
110          """ 
111          Loads the user's preferences 
112          '""" 
113          path = os.path.join(datafiles.userConfigPath(), "config.ini") 
114          if os.path.exists(path): 
115                  f = open(path, "r") 
116                  config = ConfigParser.SafeConfigParser() 
117                  config.readfp(f) 
118   
119                  def getIntOption(section, sectionName, name): 
120                          try: 
121                                  section[name] = config.getint(sectionName, name) 
122                          except ConfigParser.NoOptionError: 
123                                  pass 
124                          except ValueError: 
125                                  pass 
126   
127                  def getFloatOption(section, sectionName, name): 
128                          try: 
129                                  section[name] = config.getfloat(sectionName, name) 
130                          except ConfigParser.NoOptionError: 
131                                  pass 
132   
133                  def getHexOption(section, sectionName, name): 
134                          try: 
135                                  section[name] = config.get(sectionName, name) 
136                          except ConfigParser.NoOptionError: 
137                                  pass 
138                          try: 
139                                  section[name] = int(section[name], 16) 
140                          except ValueError: 
141                                  pass 
142   
143                  def getBoolOption(section, sectionName, name): 
144                          try: 
145                                  section[name] = config.getboolean(sectionName, name) 
146                          except ConfigParser.NoOptionError: 
147                                  pass 
148                          except ValueError: 
149                                  pass 
150   
151                  def getStringOption(section, sectionName, name): 
152                          try: 
153                                  section[name] = config.get(sectionName, name) 
154                          except ConfigParser.NoOptionError: 
155                                  pass 
156   
157                  getIntOption(visual, "Visual", "handle_size") 
158                  getIntOption(visual, "Visual", "stipple_length") 
159                  getIntOption(visual, "Visual", "stipple_gap") 
160                  getHexOption(visual, "Visual", "valid_fill") 
161                  getHexOption(visual, "Visual", "valid_outline") 
162                  getHexOption(visual, "Visual", "invalid_fill") 
163                  getHexOption(visual, "Visual", "invalid_outline") 
164   
165                  getFloatOption(physics, "Physics", "default_friction") 
166                  getFloatOption(physics, "Physics", "default_restitution") 
167   
168                  getStringOption(files, "Files", "tileset_prefix") 
169                  getStringOption(files, "Files", "parallax_prefix") 
170                  getStringOption(files, "Files", "data_prefix") 
171                  getBoolOption(files, "Files", "use_prefixes") 
172   
173          else: 
174                  log.info("Could not open user configuration file. Using defaults") 
175