#/usr/bin/env python
__version__="0.3"
__author__="AGE"
__date__="02006-06-07"

class WknGUI:
	"""
	This is a GTK-Frontend for getWKNcharts.py
	"""
	import sys, time
	from threading import Thread
	wkns = ""
	log = ""
	maxloglevel = 1
	'''0:no logging; 1:errors; 2:status messages; 3:all '''

	def __init__(self, gtk):
		self.gladefile = "wkncharts.glade"
		self.gtk = gtk
		self.gladefile = "wkncharts.glade"
		self.wkngui = self.gtk.glade.XML(self.gladefile)
		actions = { "on_read_settings_clicked": self.clicked_read_settings,		
			"on_cancel_settings_clicked": self.clicked_cancel_settings,		
			"on_choose_srcfile_clicked": self.clicked_choose_srcfile,		
			"on_bu_wget_charts_clicked": self.clicked_wget_charts,		
			"on_bu_pics_clicked": self.clicked_show_pics,
			"on_bu_exit_clicked": self.exit,
			"on_window1_destroy": self.exit 
		}
		self.wkngui.signal_autoconnect (actions)
		# read the config at program start
		self.clicked_read_settings(self)
		
	def clicked_wget_charts(self, widget):
		import getWKNcharts
		'''the real download logic lies in getWKNcharts
		that's why, we let it read in the wkn file'''
		charts = getWKNcharts.WKNCharts()
		charts.readwkndictfromstring(self.wkns)
		#charts.set_times([30, 300])
		charts.set_times([30])
		self.add_log("beginne Download der WKNS",2)
		## downlaoding in threads, so the gui won't hang
		## giving it 'self', so that it can use the logging window
		self.Thread(target=charts.getallcharts,args=(self,)).start()
		## unthreaded version
		#charts.getallcharts(self)
		self.add_log("Download abgeschlossen",2)

	def clicked_read_settings(self, widget):
		self.outputfield = self.wkngui.get_widget("tf_srcfile")
		self.textbuffer = self.outputfield.get_buffer()
		file = self.textbuffer.get_text(*self.textbuffer.get_bounds ())
		try:
			tmpfile = open(file, "r")
			filecontent = tmpfile.read()
			tmpfile.close()
			log = "\"%s\" erfolgreich eingelesen" % file
			self.add_log(log, 2)
		except:
			log = "Achtung: Konnte \"%s\" nicht einlesen!" % file 
			self.add_log("verdammt: "+str(self.sys.exc_info()[0]),1)
			self.add_log(log, 1)
			return
		self.wkns = (filecontent)
		self.tf_wknlist = self.wkngui.get_widget("tf_wknlist")
		self.wknlistbuffer = self.tf_wknlist.get_buffer()
		self.wknlistbuffer.set_text(self.wkns)
		self.add_log("neue Einstellungen gespeichert", 2)

	def clicked_cancel_settings(self, widget):
		'''TODO:
		self.add_log("alte Einstellungen wieder hergestellt")
		'''
		pass

	def clicked_choose_srcfile(self, widget):
		try:
			import filechooser
			fcd = filechooser.FileChooserDialog()
			filename = fcd.getfilename()
		except:
			self.add_log("Dateiauswahl Dialog konnte nicht gestartet werden",1)
			self.add_log("verdammt: "+str(self.sys.exc_info()[0]),1)
			raise
		self.outputfield = self.wkngui.get_widget("tf_srcfile")
		self.textbuffer = self.outputfield.get_buffer()
		if filename:
			self.textbuffer.set_text(filename)
		else:
			self.textbuffer.set_text("keine Datei ausgewaehlt")

	def add_log(self, text, loglevel=2):
		if loglevel <= self.maxloglevel:
			self.logbuch = self.wkngui.get_widget("tf_logbook")
			self.buffer = self.logbuch.get_buffer()
			self.log += "\n"+self.time.strftime('%H:%M:%S')+" "
			self.log += " (L" + str(loglevel) + ") "
			self.log += text
			self.buffer.set_text(self.log)

	def clicked_show_pics(self, widget):
		'''this is for now 'cause i'm to lazy to implement the viewer
		in a better way'''
		#self.ci = self.wkngui.get_widget("chartimage")
		#self.ci.set_from_file("foo.png")
		self.add_log("Bildbetrachter gestartet", 2)
		try:
			import pyview
			pv = pyview.PyView("pyview.glad","pyview","./images")
			pv.show_window
		except:
			self.add_log("konnte Bildbetrachter nicht laden", 1)
			self.add_log(str(self.sys.exc_info()[0]),1)
			raise

		
	def exit(self, widget):
		print "ciao ciao"
		self.sys.exit(1)