git.gag.com Git - debian/gnuradio/blob - grc/blocks/variable_config.xml

   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Variable Config block:
   5 ##  a variable that reads and writes to a config file
   6 ###################################################
   7  -->
   8 <block>
   9         <name>Variable Config</name>
  10         <key>variable_config</key>
  11         <import>import ConfigParser</import>
  12         <var_make>self._$(id)_config = ConfigParser.ConfigParser()
  13 self._$(id)_config.read($config_file)
  14 try: $(id) = self._$(id)_config.$(type.get)($section, $option)
  15 except: $(id) = $value
  16 self.$(id) = $(id)</var_make>
  17         <make></make>
  18         <callback>self.set_$(id)($value)</callback>
  19         <callback>self._$(id)_config = ConfigParser.ConfigParser()
  20 self._$(id)_config.read($config_file)
  21 if not self._$(id)_config.has_section($section):
  22         self._$(id)_config.add_section($section)
  23 self._$(id)_config.set($section, $option, str($writeback))
  24 self._$(id)_config.write(open($config_file, 'w'))</callback>
  25         <param>
  26                 <name>Default Value</name>
  27                 <key>value</key>
  28                 <value>0</value>
  29                 <type>$type</type>
  30         </param>
  31         <param>
  32                 <name>Type</name>
  33                 <key>type</key>
  34                 <value>real</value>
  35                 <type>enum</type>
  36                 <option>
  37                         <name>Float</name>
  38                         <key>real</key>
  39                         <opt>get:getfloat</opt>
  40                 </option>
  41                 <option>
  42                         <name>Int</name>
  43                         <key>int</key>
  44                         <opt>get:getint</opt>
  45                 </option>
  46                 <option>
  47                         <name>Bool</name>
  48                         <key>bool</key>
  49                         <opt>get:getbool</opt>
  50                 </option>
  51                 <option>
  52                         <name>String</name>
  53                         <key>string</key>
  54                         <opt>get:get</opt>
  55                 </option>
  56         </param>
  57         <param>
  58                 <name>Config File</name>
  59                 <key>config_file</key>
  60                 <value>default</value>
  61                 <type>file_open</type>
  62         </param>
  63         <param>
  64                 <name>Section</name>
  65                 <key>section</key>
  66                 <value>main</value>
  67                 <type>string</type>
  68         </param>
  69         <param>
  70                 <name>Option</name>
  71                 <key>option</key>
  72                 <value>key</value>
  73                 <type>string</type>
  74         </param>
  75         <param>
  76                 <name>WriteBack</name>
  77                 <key>writeback</key>
  78                 <value>None</value>
  79                 <type>raw</type>
  80         </param>
  81         <doc>
  82 This block represents a variable that can be read from a config file.
  83
  84 To save the value back into the config file: \
  85 enter the name of another variable into the writeback param. \
  86 When the other variable is changed at runtime, the config file will be re-written.
  87         </doc>
  88 </block>