clSettings.py

   1 from traceback import print_exc
   2 from PyQt4 import QtCore
   3
   4 class Settings:
   5     fileName=None
   6     lines=[]
   7
   8     def __init__(self, file='settings.txt'):
   9         self.fileName=file
  10         self.read()
  11
  12     def __del__(self):
  13         self.write()
  14
  15     def get(self, name, default=None):
  16         for line in self.lines:
  17             if line[0:len(name)]==name:
  18                 return line[len(name):].strip()
  19         return default
  20
  21     def set(self, name, value):
  22         newvalue="%s\t%s"%(name,value)
  23         for i in xrange(len(self.lines)):
  24             line=self.lines[i]
  25             if line[0:len(name)]==name:
  26                 self.lines[i]=newvalue
  27                 return
  28         # new value to write
  29         self.lines.append(newvalue)
  30
  31     def getIntTuple(self, name):
  32         """Note this might return an exception!"""
  33         val=self.get(name)
  34         i=val.find(' ')
  35         x,y=int(val[0:i]), int(val[i:])
  36         return x,y
  37
  38     def setIntTuple(self, name, val1, val2):
  39         self.set(name, "%i %i"%(val1, val2))
  40
  41     def read(self):
  42         try:
  43             self.lines=[]
  44             f=open(self.fileName)
  45             while True:
  46                 line=f.readline()
  47                 if line=='':    break
  48                 self.lines.append(line.strip().replace('$NEWLINE', '\n'))
  49             f.close()
  50         except IOError:
  51             pass
  52         except:
  53             print_exc()
  54     def write(self):
  55         f=open(self.fileName, 'wb')
  56         for line in self.lines:
  57             f.write("%s\n"%(line.replace('\n', '$NEWLINE')))
  58         f.close()
  59
  60
  61 settings=Settings()