161 lines
4.4 KiB
Python
161 lines
4.4 KiB
Python
#!/usr/bin/env python
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import os
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import sys
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try:
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import pygtk
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pygtk.require("2.0") #wir wollen gtkv2 nutzen
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#print "pygtk importiert"
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except:
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print "couldn't import 'pygtk'! Try 'apt-get install python-gtk2'."
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sys.exit(1)
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try:
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import gtk
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import gtk.glade
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#print "gtk.glade importiert"
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except:
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print "Mit GTKv2 kannst du den Schlafenden wecken!"
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sys.exit(1)
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try:
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import configobj ## needed for reading and writing of the config file
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except:
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print "couldn't import 'configobj'! Try 'apt-get install python-configobj'."
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sys.exit(1)
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############################ CONFIG FILE ##########################
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class SettingsClass(configobj.ConfigObj):
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""" a class for handling the config file(s) using configobj"""
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CONF_LOCATIONS = [
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"./in-gen.conf",
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"~/.in-gen.conf",
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]
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def __init__(self, config_file=None):
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config_file = self.__getConfigFileName(config_file)
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self.prefs = self.__getPreferences(config_file)
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#TODO: a proper ConfigObj instance knows these variables, read them automatically!
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def __getitem__(self, key):
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"""redirect all requests to the 'prefs' attribute"""
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return self.prefs[key]
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def __getPreferences(self, config_file):
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"""read the config file and return a configobj object."""
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try:
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prefs = configobj.ConfigObj(config_file)
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if prefs:
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pass
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else:
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raise "failed to load the config file: %s" % config_file
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except IOError:
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raise "unable to open the config file: %s" % config_file
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return prefs
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def __getConfigFileName(self, config_file):
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# search for the configuration file
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import types
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if config_file is None:
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# no config file was specified - we will look for it in the ususal locations
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conf_file_list = [os.path.expanduser(f)
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for f in self.CONF_LOCATIONS
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if os.path.exists(os.path.expanduser(f))]
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if not conf_file_list:
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# no possible config file found in the usual locations
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raise "could not find a config file"
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config_file = conf_file_list[0]
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else:
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# a config file was specified (e.g. via command line)
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if type(config_file) != types.StringType:
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raise "invalid config file specified: %s" % config_file
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if not os.path.exists(config_file):
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raise "could not find the specified configuration file (%s)" % config_file
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return config_file
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def safe(self):
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"""safe the current values of the config to file"""
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return self.prefs.write()
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def createsection(self,newsection):
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"""adds a new empty section to config object"""
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self.prefs[newsection] = {}
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################################# GUI ######################
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class gtkgui:
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def __init__(self,gtkext):
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# gtk is given, it has to be known in the whole class
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self.gtk = gtkext
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# define which gladefile to use for frontend
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gladefile = "in-gen-glade/in-gen-glade.glade"
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self.gui = gtk.glade.XML(gladefile)
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# set button handlers
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actions = { "on_OkButton_clicked": self.clicked_ok,
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"on_mainwindow_destroy": self.exit }
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# connect the actions to the events
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self.gui.signal_autoconnect (actions)
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#load config
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self.config = SettingsClass()
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#display an unused invoice number
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self.display_new_number()
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#### functions which get executed on startup
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def display_new_number(self):
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#get relevant variables
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prefix = self.config[section]["prefix"]
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lastnumber = self.config[section]["lastnumber"]
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suffix = self.config[section]["suffix"]
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newnumber = create_number(prefix, lastnumber, suffix)
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#display new number in GUI
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self.outputfield = self.gui.get_widget("NumberDisplay")
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self.textbuffer = self.outputfield.get_buffer()
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self.textbuffer.set_text(newnumber)
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#### implementation of actions
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def clicked_ok(self, widget):
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"""save last generated number in config file"""
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#update "lastnumber" entry in config
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self.config[section]["lastnumber"] = int(self.config[section]["lastnumber"]) + 1
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#write config to filesystem
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self.config.safe()
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#notify user
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self.outputfield = self.gui.get_widget("NumberDisplay")
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self.textbuffer = self.outputfield.get_buffer()
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self.textbuffer.set_text("Saved number has been updated.")
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def exit(self, widget):
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gtk.main_quit()
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############################# INVOICE NUMBER HANDLING ###################
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def create_number(prefix, lastnumber, suffix):
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"""gets prefix string, last used number and suffix string.
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returns new invoice number."""
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return str(prefix) + str(int(lastnumber)+1) + str(suffix)
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############################ MAIN #################################
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#section = str(sys.argv[1])
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section = "Handrechnung"
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app = gtkgui(gtk)
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gtk.main()
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