path: root/Moonwidgets.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright 2008 Gary C. Martin

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

# Activity web site: http://wiki.laptop.org/go/Moon
# Created: Febuary 2008
# Author: gary@garycmartin.com
# Home page: http://www.garycmartin.com/

#	Febrero 2012
# Correcciones, Simplificación y Reestructuración Modular:
# Desarrollo de CalendarButton + MoonCalendar:
# Instalador y Portado a gnome:
#	Flavio Danesse <fdanesse@gmail.com> CeibalJAM! - Uruguay - Activity Central
# Traducciones a Español:
# 	Ana Cichero <ana.cichero@gmail.com> CeibalJAM! - Uruguay

import gtk, pygtk, gobject, math, time, os, calendar
from gettext import gettext as _
import MoonGlobals as MG

class CalendarButton(gtk.EventBox):
	__gsignals__ = {"clicked":(gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT, )),
	"clickederecho":(gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT, ))}
	def __init__(self, anio, mes, d, hora):
		gtk.EventBox.__init__(self)
		self.set_visible_window(True)
		self.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)

		self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK |
			gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.ENTER_NOTIFY_MASK | gtk.gdk.LEAVE_NOTIFY_MASK)

		self.imagen_size = 50
		self.image_pixmap = None
		self.moon_stamp = gtk.gdk.pixbuf_new_from_file(os.path.join(MG.ICONOS,"moon.jpg"))
	        self.image = gtk.Image()
		self.fixed = gtk.Fixed()

		self.hemisphere_view = 'Sur'
		self.show_grid = False

		self.fixed.put(self.image, 0, 0)

		self.add(self.fixed)
		self.show_all()

		self.anio, self.mes, self.dia, self.hora = anio, mes, d, hora
		self.hoy = "%s-%s-%s %s" % (self.anio, self.mes, self.dia, self.hora)
		if self.dia > 0:
			self.ahora = time.mktime(time.strptime(self.hoy, MG.format))
			#self.data_model.update_moon_calculations(ahora) # para recalcular la fase
			self.data_model = DataModel(self.ahora)
			dias= []
			for d in calendar.day_name:
				if d: dias.append(d)
			meses= []
			for m in calendar.month_name:
				if m: meses.append(m)
			t = time.strptime(self.hoy, MG.format)
			mes= meses[t.tm_mon -1]
			dia= dias[t.tm_wday]
			fecha= "%s %s de %s de %s" % (dia, self.dia, mes, self.anio)
			self.set_tooltip(fecha)
			label = gtk.Label(str(self.dia))
			label.modify_fg(gtk.STATE_NORMAL, MG.FOREGROUND)
			self.fixed.put(label, 0, 0)

			self.connect("button_press_event", self.button_press)
			self.connect("button_release_event", self.button_release)
			self.connect("enter-notify-event", self.enter_notify_event)
			self.connect("leave-notify-event", self.leave_notify_event)

	# --------------------------- EVENTOS --------------------------
	def button_release(self, widget, event):
		pass
	def leave_notify_event(self, widget, event):
		pass
	def enter_notify_event(self, widget, event):
		pass
	def button_press(self, widget, event):
		if event.button == 1:
			self.emit("clicked", event)
		if event.button == 3:
			self.emit("clickederecho", event)
	# --------------------------- EVENTOS --------------------------

	# --------------------------- SETEOS ---------------------------
	def set_tooltip(self, texto):
		tooltips = gtk.Tooltips()
		tooltips.set_tip(self, texto, tip_private=None)
	# --------------------------- SETEOS ---------------------------

	def toggle_grid_clicked(self, widget= None):
		if self.show_grid == True:
		    self.show_grid = False
		else:
		    self.show_grid = True

	def toggle_hemisphere_clicked(self, widget= None):
		if self.hemisphere_view == 'Norte':
		    self.hemisphere_view = 'Sur'
		else:
		    self.hemisphere_view = 'Norte'

	def repaint(self, tamanioboton):
		if tamanioboton != self.imagen_size:
			self.imagen_size = tamanioboton
			if self.dia > 0:
				self.actualizar()

	def actualizar(self):
		if self.dia <= 0: return
		self.image_pixmap = gtk.gdk.Pixmap(self.window, self.imagen_size, self.imagen_size)
		gc = self.image_pixmap.new_gc(foreground=MG.BACKGROUND)
		self.image.set_from_pixmap(self.image_pixmap, None)
		self.image_pixmap.draw_rectangle(gc, True, 0, 0, self.imagen_size, self.imagen_size)
		        
		# Create a 1bit shadow mask
		mask_pixmap = gtk.gdk.Pixmap(None, self.imagen_size, self.imagen_size, depth=1)
		kgc = mask_pixmap.new_gc(foreground=MG.BACKGROUND)
		wgc = mask_pixmap.new_gc(foreground=MG.FOREGROUND)
		mask_pixmap.draw_rectangle(kgc, True, 0, 0, self.imagen_size, self.imagen_size)

		if self.data_model.phase_of_moon <= .25:
		    #print "New Moon to First Quarter"
		    phase_shadow_adjust = self.data_model.phase_of_moon - abs(math.sin(self.data_model.phase_of_moon * math.pi * 4) / 18.0)
		    arc_scale = int(self.imagen_size * (1 - (phase_shadow_adjust * 4)))
		    mask_pixmap.draw_rectangle(wgc, True, self.imagen_size/2 + 1, 0, self.imagen_size/2, self.imagen_size - 1)
		    mask_pixmap.draw_arc(kgc, True, self.imagen_size/2 - int(arc_scale / 2), 0, arc_scale, self.imagen_size, 17280, 11520)
		elif self.data_model.phase_of_moon <= .5:
		    #print "First Quarter to Full Moon"
		    phase_shadow_adjust = self.data_model.phase_of_moon + abs(math.sin(self.data_model.phase_of_moon * math.pi * 4) / 18.0)
		    arc_scale = int(self.imagen_size * ((phase_shadow_adjust - .25) * 4))
		    mask_pixmap.draw_rectangle(wgc, True, self.imagen_size/2, 0, self.imagen_size/2, self.imagen_size)
		    mask_pixmap.draw_arc(wgc, True, self.imagen_size/2 - int(arc_scale / 2), 0, arc_scale, self.imagen_size, 5760, 11520)
		elif self.data_model.phase_of_moon <= .75:
		    #print "Full Moon to Last Quarter"
		    phase_shadow_adjust = self.data_model.phase_of_moon - abs(math.sin(self.data_model.phase_of_moon * math.pi * 4) / 18.0)
		    arc_scale = int(self.imagen_size * (1 - ((phase_shadow_adjust - .5) * 4)))
		    mask_pixmap.draw_rectangle(wgc, True, 0, 0, self.imagen_size/2 + 1, self.imagen_size)
		    mask_pixmap.draw_arc(wgc, True, self.imagen_size/2 - int(arc_scale / 2), 0, arc_scale, self.imagen_size, 17280, 11520)
		else:
		    #print "Last Quarter to New Moon"
		    phase_shadow_adjust = self.data_model.phase_of_moon + abs(math.sin(self.data_model.phase_of_moon * math.pi * 4) / 18.0)
		    arc_scale = int(self.imagen_size * ((phase_shadow_adjust - .75) * 4))
		    mask_pixmap.draw_rectangle(wgc, True, 0, 0, self.imagen_size/2, self.imagen_size) # mitad de luna blanca
		    mask_pixmap.draw_arc(kgc, True, self.imagen_size/2 - int(arc_scale / 2), 0, arc_scale, self.imagen_size, 5760, 11520)

		maskgc = self.image_pixmap.new_gc(clip_mask=mask_pixmap)
		moon_pixbuf = self.moon_stamp.scale_simple(self.imagen_size, self.imagen_size, gtk.gdk.INTERP_BILINEAR)

		# Composite bright Moon image and semi-transparant Moon for shadow detail
		dark_pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.imagen_size, self.imagen_size)
		dark_pixbuf.fill(0x00000000)

		uno = (self.data_model.next_lunar_eclipse_sec == -1 and self.data_model.last_lunar_eclipse_sec > 7200)
		dos = (self.data_model.next_lunar_eclipse_sec > 7200 and self.data_model.last_lunar_eclipse_sec == -1)
		tres = min(self.data_model.next_lunar_eclipse_sec, self.data_model.last_lunar_eclipse_sec) > 7200
		if uno or dos or tres:
		    #print "Normal Moon phase render"
		    moon_pixbuf.composite(dark_pixbuf, 0, 0, self.imagen_size, self.imagen_size, 0, 0, 1, 1, gtk.gdk.INTERP_BILINEAR, 127)
		    self.image_pixmap.draw_pixbuf(gc, dark_pixbuf, 0, 0, 0, 0) # parte oscura
		    self.image_pixmap.draw_pixbuf(maskgc, moon_pixbuf, 0, 0, 0, 0) # parte iluminada

		else:
		    #print "Reddening eclipse effect, 2hrs (7200sec) before and after (by masking out green & blue)"
		    if self.data_model.next_lunar_eclipse_sec == -1:
		        eclipse_alpha = self.data_model.last_lunar_eclipse_sec / 7200.0 * 256
		    elif self.data_model.last_lunar_eclipse_sec == -1:
		        eclipse_alpha = self.data_model.next_lunar_eclipse_sec / 7200.0 * 256
		    else:
		        eclipse_alpha = min(self.data_model.next_lunar_eclipse_sec,
				self.data_model.last_lunar_eclipse_sec) / 7200.0 * 256

		    moon_pixbuf.composite(dark_pixbuf, 0, 0, self.imagen_size, self.imagen_size,
				0, 0, 1, 1, gtk.gdk.INTERP_BILINEAR, int(196 - eclipse_alpha / 2))

		    self.image_pixmap.draw_pixbuf(gc, dark_pixbuf, 0, 0, 0, 0)

		    del dark_pixbuf
		    dark_pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.imagen_size, self.imagen_size)
		    moon_pixbuf.composite(dark_pixbuf, 0, 0, self.imagen_size, self.imagen_size,
			0, 0, 1, 1, gtk.gdk.INTERP_BILINEAR, int(eclipse_alpha))
		    rgc = self.image_pixmap.new_gc(foreground=MG.BLUEGREENMASK, function=gtk.gdk.AND)
		    self.image_pixmap.draw_rectangle(rgc, True, 0, 0, self.imagen_size, self.imagen_size)
		    self.image_pixmap.draw_pixbuf(gc, dark_pixbuf, 0, 0, 0, 0)

		if self.hemisphere_view == 'Sur':
		    #print "Rotate final image for a view from Norte or Sur hemisphere"
		    rot_pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.imagen_size, self.imagen_size)
		    rot_pixbuf.get_from_drawable(self.image_pixmap, self.image_pixmap.get_colormap(), 0, 0, 0, 0, -1, -1)
		    rot_pixbuf = rot_pixbuf.rotate_simple(gtk.gdk.PIXBUF_ROTATE_UPSIDEDOWN)
		    self.image_pixmap.draw_pixbuf(gc, rot_pixbuf, 0, 0, 0, 0)

		if self.show_grid:
		    # Draw grid rotated for Sur hemi
		    self.draw_grid(_("SNWE"))
		elif self.show_grid:
		    # Draw grid for Norte hemi
		    self.draw_grid(_("NSEW"))

	def draw_grid(self, compass_text):
		# Draw Selenographic grid line data.
		rgc = self.image_pixmap.new_gc(foreground=MG.RED)
		bgc = self.image_pixmap.new_gc(foreground=MG.BLUE)
		wgc = self.image_pixmap.new_gc(foreground=MG.FOREGROUND)
		pango_layout = self.image.create_pango_layout("")
		pango_layout.set_text("0°")
		self.image_pixmap.draw_rectangle(bgc, True, self.imagen_size/2 + 2, self.imagen_size/2, 24, 22)            
		self.image_pixmap.draw_layout(wgc, self.imagen_size/2 + 2, self.imagen_size/2, pango_layout)            
		pango_layout.set_text("30°")
		self.image_pixmap.draw_rectangle(bgc, True, self.imagen_size/2 + 2, int(self.imagen_size/2 * 0.5), 36, 22)            
		self.image_pixmap.draw_rectangle(bgc, True, self.imagen_size/2 + 2, int(self.imagen_size/2 * 1.5), 36, 22)            
		self.image_pixmap.draw_layout(wgc, self.imagen_size/2 + 2, int(self.imagen_size/2 * 0.5), pango_layout)            
		self.image_pixmap.draw_layout(wgc, self.imagen_size/2 + 2, int(self.imagen_size/2 * 1.5), pango_layout)            
		pango_layout.set_text("60°")
		self.image_pixmap.draw_rectangle(bgc, True, self.imagen_size/2 + 2, int(self.imagen_size/2 * 0.15), 36, 22)            
		self.image_pixmap.draw_rectangle(bgc, True, self.imagen_size/2 + 2, int(self.imagen_size/2 * 1.85), 36, 22)            
		self.image_pixmap.draw_layout(wgc, self.imagen_size/2 + 2, int(self.imagen_size/2 * 0.15), pango_layout)            
		self.image_pixmap.draw_layout(wgc, self.imagen_size/2 + 2, int(self.imagen_size/2 * 1.85), pango_layout)            
		pango_layout.set_text("30°")
		self.image_pixmap.draw_rectangle(rgc, True, int(self.imagen_size/2 * 0.48) + 2, self.imagen_size/2, 36, 22)            
		self.image_pixmap.draw_rectangle(rgc, True, int(self.imagen_size/2 * 1.52) + 2, self.imagen_size/2, 36, 22)            
		self.image_pixmap.draw_layout(wgc, int(self.imagen_size/2 * 0.48) + 2, self.imagen_size/2, pango_layout)            
		self.image_pixmap.draw_layout(wgc, int(self.imagen_size/2 * 1.52) + 2, self.imagen_size/2, pango_layout)            
		pango_layout.set_text("60°")
		self.image_pixmap.draw_rectangle(rgc, True, int(self.imagen_size/2 * 0.15) + 2, self.imagen_size/2, 36, 22)            
		self.image_pixmap.draw_rectangle(rgc, True, int(self.imagen_size/2 * 1.85) + 2, self.imagen_size/2, 36, 22)            
		self.image_pixmap.draw_layout(wgc, int(self.imagen_size/2 * 0.15) + 2, self.imagen_size/2, pango_layout)            
		self.image_pixmap.draw_layout(wgc, int(self.imagen_size/2 * 1.85) + 2, self.imagen_size/2, pango_layout)            
		for i in (-1, 0, 1):
		    self.image_pixmap.draw_line(rgc, self.imagen_size/2 + i, 0, self.imagen_size/2 + i, self.imagen_size)
		    self.image_pixmap.draw_arc(rgc, False, int(self.imagen_size/2 * 0.15) + i, 0,
			self.imagen_size - int(self.imagen_size * 0.15), self.imagen_size, 0, 360*64)
		    self.image_pixmap.draw_arc(rgc, False, int(self.imagen_size/2 * 0.48) + i, 0,
			self.imagen_size - int(self.imagen_size * 0.48) , self.imagen_size, 0, 360*64)
		for i in (-1, 0, 1):
		    self.image_pixmap.draw_line(bgc, 0, self.imagen_size/2 + i, self.imagen_size, self.imagen_size/2 + i)
		    self.image_pixmap.draw_line(bgc, int(self.imagen_size/2 * 0.15), int(self.imagen_size/2 * 0.5) + i,
			self.imagen_size - int(self.imagen_size/2 * 0.15), int(self.imagen_size/2 * 0.5) + i)
		    self.image_pixmap.draw_line(bgc, int(self.imagen_size/2 * 0.15), int(self.imagen_size/2 * 1.5) + i,
			self.imagen_size - int(self.imagen_size/2 * 0.15), int(self.imagen_size/2 * 1.5) + i)
		    self.image_pixmap.draw_line(bgc, int(self.imagen_size/2 * 0.5), int(self.imagen_size/2 * 0.15) + i,
			self.imagen_size - int(self.imagen_size/2 * 0.5), int(self.imagen_size/2 * 0.15) + i)
		    self.image_pixmap.draw_line(bgc, int(self.imagen_size/2 * 0.5), int(self.imagen_size/2 * 1.85) + i,
			self.imagen_size - int(self.imagen_size/2 * 0.5), int(self.imagen_size/2 * 1.85) + i)

		pango_layout.set_text(_("Latitude"))
		self.image_pixmap.draw_layout(bgc, 15, self.imagen_size - 48 - 15, pango_layout)
		pango_layout.set_text(_("Longitude"))
		self.image_pixmap.draw_layout(rgc, 15, self.imagen_size - 24 - 15, pango_layout)

		# Compass
		# TODO: fix string index to support multi-byte texts
		for i in (-1, 0, 1):
		    self.image_pixmap.draw_line(rgc, 22 + 15, 48 + 15 + i, 68 + 15, 48 + 15 + i)
		for i in (-1, 0, 1):
		    self.image_pixmap.draw_line(bgc, 45 + 15 + i, 24 + 15, 45 + 15 + i, 68 + 15)
		pango_layout.set_text(compass_text[0])
		self.image_pixmap.draw_layout(bgc, 38 + 15, 15, pango_layout)
		pango_layout.set_text(compass_text[1])
		self.image_pixmap.draw_layout(bgc, 38 + 15, 72 + 15, pango_layout)
		pango_layout.set_text(compass_text[2])
		self.image_pixmap.draw_layout(rgc, 72 + 15, 36 + 15, pango_layout)
		pango_layout.set_text(compass_text[3])
		self.image_pixmap.draw_layout(rgc, 15, 36 + 15, pango_layout)

class DataModel():
    def __init__(self, ahora):
	self.ahora = ahora
        self.new_moon_array = MG.new_moon_array
        self.full_moon_array = MG.full_moon_array
        self.first_quarter_array = MG.first_quarter_array
        self.last_quarter_array = MG.last_quarter_array

        self.percent_of_full_moon = None
        self.julian_date = None
        self.lunation = None
        self.days_old = None
        self.hours_old = None
        self.minutes_old = None
        self.days_until_new_moon = None
        self.next_new_moon_date = None
        self.days_until_full_moon = None
        self.next_full_moon_date = None

        self.next_lunar_eclipse_sec = None
        self.next_solar_eclipse_sec = None
        self.last_lunar_eclipse_sec = None
        self.days_until_lunar_eclipse = None
        self.next_lunar_eclipse_date = None
        self.days_until_solar_eclipse = None
        self.next_solar_eclipse_date = None

	self.phase_of_moon = None

	self.update_moon_calculations(self.ahora)

    def update_moon_calculations(self, the_date):
	self.ahora = the_date
        # Generate all Moon data ready for display.
        last_new_moon_sec = MG.last_new_moon_sec_at_time(the_date)
        next_new_moon_sec = MG.next_new_moon_sec_at_time(the_date)
        last_full_moon_sec = MG.last_full_moon_sec_at_time(the_date)
        next_full_moon_sec = MG.next_full_moon_sec_at_time(the_date)
        last_quarter_moon_sec = MG.last_quarter_moon_sec_at_time(the_date)
        next_quarter_moon_sec = MG.next_quarter_moon_sec_at_time(the_date)

	self.phase_of_moon = MG.RecalcularFase(the_date)

        # Generate interesting human readable values
        self.percent_of_full_moon = (math.cos(((self.phase_of_moon + .5) / .5 * math.pi)) + 1) * .5
        self.julian_date = 2452135 + ((the_date - 997700400.0) / MG.SECONDS_PER_DAY)
        self.lunation = MG.lunation_at_time(the_date)
        day_with_fraction = last_new_moon_sec / MG.SECONDS_PER_DAY
        self.days_old = math.floor(day_with_fraction)
        self.hours_old = math.floor((day_with_fraction - self.days_old) * 24)
        self.minutes_old = math.floor((((day_with_fraction - self.days_old) * 24) - self.hours_old) * 60)
        self.days_until_new_moon = next_new_moon_sec / MG.SECONDS_PER_DAY
        self.next_new_moon_date = the_date + next_new_moon_sec - MG.correct_for_tz_and_dst(the_date + next_new_moon_sec)
        self.days_until_full_moon = next_full_moon_sec / MG.SECONDS_PER_DAY
        self.next_full_moon_date = the_date + next_full_moon_sec - MG.correct_for_tz_and_dst(the_date + next_full_moon_sec)
        
        # Eclipse information
        self.next_lunar_eclipse_sec = MG.next_lunar_eclipse_sec_at_time(the_date)
        self.next_solar_eclipse_sec = MG.next_solar_eclipse_sec_at_time(the_date)
        self.last_lunar_eclipse_sec = MG.last_lunar_eclipse_sec_at_time(the_date)
        self.days_until_lunar_eclipse = self.next_lunar_eclipse_sec / MG.SECONDS_PER_DAY
        self.next_lunar_eclipse_date = the_date + self.next_lunar_eclipse_sec - MG.correct_for_tz_and_dst(the_date + self.next_lunar_eclipse_sec)
        self.days_until_solar_eclipse = self.next_solar_eclipse_sec / MG.SECONDS_PER_DAY
        self.next_solar_eclipse_date = the_date + self.next_solar_eclipse_sec - MG.correct_for_tz_and_dst(the_date + self.next_solar_eclipse_sec)

        # Selenographic terminator longitude
        selenographic_tmp = 270 + (self.phase_of_moon * 360)
        if selenographic_tmp >= 360:
            selenographic_tmp -= 360
        if selenographic_tmp >= 270:
            selenographic_tmp -= 360
        elif selenographic_tmp >= 180:
            selenographic_tmp -= 180
        elif selenographic_tmp >= 90:
            selenographic_tmp -= 180
        selenographic_tmp = -selenographic_tmp
        if selenographic_tmp < 0:
            self.west_or_east = _("west")
        else:
            self.west_or_east = _("east")
        self.selenographic_deg = abs(selenographic_tmp)
        if self.phase_of_moon >= .5:
            self.rise_or_set = _("Sunset")
        else:
            self.rise_or_set = _("Sunrise")
            
    def moon_phase_name(self, phase_of_moon):
        # Return the moon image name for a given phase value.
        if phase_of_moon >= 0 and phase_of_moon < 0.025:
            return _("New Moon")
        elif phase_of_moon >= 0.025 and phase_of_moon < 0.225:
            return _("Waxing Crescent")
        elif phase_of_moon >= 0.225 and phase_of_moon < 0.275:
            return _("First Quarter")
        elif phase_of_moon >= 0.275 and phase_of_moon < 0.475:
            return _("Waxing Gibbous")
        elif phase_of_moon >= 0.475 and phase_of_moon < 0.525:
            return _("Full Moon")
        elif phase_of_moon >= 0.525 and phase_of_moon < 0.735:
            return _("Waning Gibbous")
        elif phase_of_moon >= 0.735 and phase_of_moon < 0.775:
            return _("Last Quarter")
        elif phase_of_moon >= 0.775 and phase_of_moon < 0.975:
            return _("Waning Crescent")
        else:
            return _("New Moon")

class MoonCalendar(gtk.AspectFrame):
	__gsignals__ = {"recalculando":(gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, (gobject.TYPE_BOOLEAN, ))}
	def __init__(self):
		gtk.AspectFrame.__init__(self)
		self.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)
		self.anio = None
		self.mes = None
		self.fecha = None
		self.hora = None
		self.semanas = None

		self.label_mes = None
		self.matriz = None

		self.layout()

	def layout(self):
		base = gtk.VBox()
		caja_control = gtk.HBox()

		view_tool_bar = gtk.Toolbar()
		view_tool_bar.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)

		boton = gtk.ToggleToolButton()
		pixbuf= gtk.gdk.pixbuf_new_from_file_at_size(os.path.join(MG.ICONOS,'flecha-ico.svg'), 32, 32)
		imagen = gtk.Image()
		imagen.set_from_pixbuf(pixbuf)
		boton.set_icon_widget(imagen)
		imagen.show()
		boton.show()
		view_tool_bar.append_item("", "", "",boton, self.anterior, user_data=None)
		boton.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)

		caja_control.pack_start(view_tool_bar, False, False, 0)
		
		self.label_mes = gtk.Label()
		self.label_mes.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)
		self.label_mes.modify_fg(gtk.STATE_NORMAL, MG.FOREGROUND)
		self.label_mes.show()

		caja_control.pack_start(self.label_mes, True, True, 0)

		view_tool_bar = gtk.Toolbar()
		view_tool_bar.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)

		boton = gtk.ToggleToolButton()
		pixbuf= gtk.gdk.pixbuf_new_from_file_at_size(os.path.join(MG.ICONOS,'flecha-ico.svg'), 32, 32)
		pixbuf= pixbuf.flip(1)
		imagen = gtk.Image()
		imagen.set_from_pixbuf(pixbuf)
		boton.set_icon_widget(imagen)
		imagen.show()
		boton.show()
		view_tool_bar.append_item("", "", "",boton, self.siguiente, user_data=None)
		boton.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)

		caja_control.pack_end(view_tool_bar, False, False, 0)

		caja_dias = gtk.HBox()
		for dia in ["Lun", "Mar", "Mie", "Jue", "Vie", "Sáb", "Dom"]:
			label = gtk.Label(dia)
			label.modify_fg(gtk.STATE_NORMAL, MG.FOREGROUND)
			caja_dias.pack_start(label, True, True, 0)

		self.matriz = MatrizMoonCalendar()

		base.pack_start(caja_control, False, False, 0)
		base.pack_start(caja_dias, False, False, 5)
		base.pack_start(self.matriz, True, True, 5)

		self.add(base)
		self.show_all()
		
	def anterior(self, widget= None):
		if self.mes == 1:
			self.mes = 12
			self.anio -= 1
		else:
			self.mes -= 1
		self.set_mes(self.anio, self.mes, self.fecha, self.hora)
		self.show_all()

	def siguiente(self, widget= None):
		if self.mes == 12:
			self.mes = 1
			self.anio += 1
		else:
			self.mes += 1
		self.set_mes(self.anio, self.mes, self.fecha, self.hora)
		self.show_all()

	def set_mes(self, anio, mes, fecha, hora):
		self.anio, self.mes, self.fecha, self.hora = (anio, mes, 1, hora)
		self.matriz.set_mes(self.anio, self.mes, self.fecha, self.hora)
		dias= []
		for d in calendar.day_name:
			if d: dias.append(d)
		self.hoy = "%s-%s-%s %s" % (self.matriz.anio, self.matriz.mes, self.matriz.fecha, self.matriz.hora)
		meses= []
		for m in calendar.month_name:
			if m: meses.append(m)
		t = time.strptime(self.hoy, MG.format)
		mes= meses[t.tm_mon -1]
		dia= dias[t.tm_wday]
		self.label_mes.set_text("%s %s" % (mes, self.matriz.anio))

	def toggle_grid_clicked(self, widget= None, actualizar= False):
		for linea in self.matriz.calendarbuttons:
			for boton in linea:
				boton.toggle_grid_clicked()
				if actualizar: boton.actualizar()

	def toggle_hemisphere_clicked(self, widget= None, actualizar= False):
		for linea in self.matriz.calendarbuttons:
			for boton in linea:
				boton.toggle_hemisphere_clicked()
				if actualizar: boton.actualizar()

class MatrizMoonCalendar(gtk.EventBox):
	def __init__(self):
		gtk.EventBox.__init__(self)
		self.set_visible_window(True)
		self.modify_bg(gtk.STATE_NORMAL, MG.BACKGROUND)
		self.fixed = gtk.Fixed()
		self.add(self.fixed)
		self.show_all()

		self.anio = None
		self.mes = None
		self.fecha = None
		self.hora = None
		self.semanas = None

		self.fixes = []
		self.calendarbuttons = []

		self.connect("expose_event", self.repaint)

	def repaint(self, widget= None, event= None):
		x,y,w,h= self.get_allocation()
		if not self.fixes: return
		anchoboton = w/len(self.fixes[0])
		altoboton = h/len(self.fixes)
		tamanioboton = min( [anchoboton,altoboton] )
		posy = 0
		for fixed in self.fixes:
			self.fixed.move(fixed, 0, posy)
			posy += tamanioboton
		posx = 0
		for fixed in self.fixes:
			for boton in self.calendarbuttons[self.fixes.index(fixed)]:
				fixed.move(boton, posx, 0)
				boton.repaint(tamanioboton)
				posx += tamanioboton
			posx = 0

	def set_mes(self, anio, mes, fecha, hora):
		self.anio, self.mes, self.fecha, self.hora = anio, mes, fecha, hora
		self.fixes = []
		self.calendarbuttons = []
		self.semanas = MG.get_semanas_del_mes(anio, mes)
		for child in self.fixed.get_children():
			self.fixed.remove(child)
			child.destroy()
		for sem in self.semanas:
			listadias = []
			fixed = gtk.Fixed()
			self.fixes.append(fixed)
			self.fixed.put(fixed, 0,0)
			for dia in sem:
				boton = CalendarButton(self.anio, self.mes, dia, self.hora)
				listadias.append(boton)
				fixed.put(boton, 0,0)
			self.calendarbuttons.append(listadias)