directory structure changed (according to phear)

in-gen/in-gen.py

@@ -0,0 +1,160 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+try:
+	import pygtk
+	pygtk.require("2.0") #wir wollen gtkv2 nutzen
+	#print "pygtk importiert"
+except:
+	print "couldn't import 'pygtk'! Try 'apt-get install python-gtk2'."
+	sys.exit(1)
+
+try:
+	import gtk
+	import gtk.glade
+	#print "gtk.glade importiert"
+except:
+	print "Mit GTKv2 kannst du den Schlafenden wecken!"
+	sys.exit(1)
+
+
+try:
+	import configobj	## needed for reading and writing of the config file
+except:
+	print "couldn't import 'configobj'! Try 'apt-get install python-configobj'."
+	sys.exit(1)
+	
+############################ CONFIG FILE ##########################
+
+class SettingsClass(configobj.ConfigObj):
+	""" a class for handling the config file(s) using configobj"""
+
+	CONF_LOCATIONS = [
+		"./in-gen.conf",
+		"~/.in-gen.conf",
+	]
+
+	def __init__(self, config_file=None):
+		config_file = self.__getConfigFileName(config_file)
+		self.prefs = self.__getPreferences(config_file)
+		#TODO: a proper ConfigObj instance knows these variables, read them automatically!
+
+
+	def __getitem__(self, key):
+		"""redirect all requests to the 'prefs' attribute"""
+		return self.prefs[key]
+
+	def __getPreferences(self, config_file):
+		"""read the config file and return a configobj object."""
+		try:
+			prefs = configobj.ConfigObj(config_file)
+			if prefs:
+				pass
+			else: 
+				raise "failed to load the config file: %s" % config_file
+		except IOError:
+			raise "unable to open the config file: %s" % config_file
+		return prefs
+
+
+	def __getConfigFileName(self, config_file):
+		# search for the configuration file
+		import types
+		if config_file is None:
+			# no config file was specified - we will look for it in the ususal locations
+			conf_file_list = [os.path.expanduser(f)
+				for f in self.CONF_LOCATIONS
+				if os.path.exists(os.path.expanduser(f))]
+			if not conf_file_list:
+				# no possible config file found in the usual locations
+				raise "could not find a config file"
+			config_file = conf_file_list[0]
+		else:
+			# a config file was specified (e.g. via command line)
+			if type(config_file) != types.StringType:
+				raise "invalid config file specified: %s" % config_file
+			if not os.path.exists(config_file):
+				raise "could not find the specified configuration file (%s)" % config_file
+		return config_file
+	
+	def safe(self):
+		"""safe the current values of the config to file"""
+		return self.prefs.write()
+	
+	def createsection(self,newsection):
+		"""adds a new empty section to config object"""
+		self.prefs[newsection] = {}
+
+################################# GUI ######################
+
+class gtkgui:
+	def __init__(self,gtkext):
+		# gtk is given, it has to be known in the whole class
+		self.gtk = gtkext
+		# define which gladefile to use for frontend
+		gladefile = "in-gen-glade/in-gen-glade.glade"
+		self.gui = gtk.glade.XML(gladefile)
+		# set button handlers
+		actions = { "on_OkButton_clicked": self.clicked_ok,
+			"on_mainwindow_destroy": self.exit }
+		# connect the actions to the events
+		self.gui.signal_autoconnect (actions)
+		#load config
+		self.config = SettingsClass()
+		#display an unused invoice number
+		self.display_new_number()
+	
+	#### functions which get executed on startup
+	def display_new_number(self):
+		#get relevant variables
+		prefix 	= self.config[section]["prefix"]
+		lastnumber = self.config[section]["lastnumber"]
+		suffix 	= self.config[section]["suffix"]
+		newnumber = create_number(prefix, lastnumber, suffix)
+		
+		#display new number in GUI
+		self.outputfield = self.gui.get_widget("NumberDisplay")
+		self.textbuffer = self.outputfield.get_buffer()
+		self.textbuffer.set_text(newnumber)
+
+		
+	#### implementation of actions
+
+	def clicked_ok(self, widget):
+		"""save last generated number in config file"""
+		#update "lastnumber" entry in config
+		self.config[section]["lastnumber"] = int(self.config[section]["lastnumber"]) + 1
+		#write config to filesystem
+		self.config.safe()
+		
+		#notify user	
+		self.outputfield = self.gui.get_widget("NumberDisplay")
+		self.textbuffer = self.outputfield.get_buffer()
+		self.textbuffer.set_text("Saved number has been updated.")
+
+
+	def exit(self, widget):
+		gtk.main_quit()
+
+
+		
+		
+############################# INVOICE NUMBER HANDLING ###################		
+
+def create_number(prefix, lastnumber, suffix):
+	"""gets prefix string, last used number and suffix string.
+	returns new invoice number."""
+	return str(prefix) + str(int(lastnumber)+1) + str(suffix)
+	
+
+############################ MAIN #################################
+
+
+
+#section = str(sys.argv[1])
+section = "Handrechnung"
+
+app = gtkgui(gtk)
+gtk.main()