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