gramps/src/plugins/lib/maps/grampsmaps.py
2011-05-25 19:26:25 +00:00

236 lines
7.6 KiB
Python

# -*- python -*-
# -*- coding: utf-8 -*-
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2011 Serge Noiraud
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# $Id$
#-------------------------------------------------------------------------
#
# Python modules
#
#-------------------------------------------------------------------------
import sys
import os
import gobject
#------------------------------------------------------------------------
#
# Set up logging
#
#------------------------------------------------------------------------
import logging
_LOG = logging.getLogger("maps.osmgpsmap")
#-------------------------------------------------------------------------
#
# GTK/Gnome modules
#
#-------------------------------------------------------------------------
import gtk
#-------------------------------------------------------------------------
#
# Gramps Modules
#
#-------------------------------------------------------------------------
import const
import constants
from gen.ggettext import sgettext as _
from gen.ggettext import ngettext
from config import config
#-------------------------------------------------------------------------
#
# Constants
#
#-------------------------------------------------------------------------
GEOGRAPHY_PATH = os.path.join(const.HOME_DIR, "maps")
#-------------------------------------------------------------------------
#
# osmGpsMap
#
#-------------------------------------------------------------------------
try:
import osmgpsmap
except:
raise
class DummyMapNoGpsPoint(osmgpsmap.GpsMap):
def do_draw_gps_point(self, drawable):
pass
gobject.type_register(DummyMapNoGpsPoint)
class DummyLayer(gobject.GObject, osmgpsmap.GpsMapLayer):
def __init__(self):
gobject.GObject.__init__(self)
def do_draw(self, gpsmap, gdkdrawable):
pass
def do_render(self, gpsmap):
pass
def do_busy(self):
return False
def do_button_press(self, gpsmap, gdkeventbutton):
return False
gobject.type_register(DummyLayer)
class SelectionLayer(gobject.GObject, osmgpsmap.GpsMapLayer):
def __init__(self):
gobject.GObject.__init__(self)
self.circles = []
def add_circle(self, r, lat, lon):
self.circles.append((r, lat, lon))
def do_draw(self, gpsmap, drawable):
gc = drawable.new_gc()
for circle in self.circles:
top_left = osmgpsmap.point_new_degrees(circle[1] + circle[0],
circle[2] - circle[0])
bottom_right = osmgpsmap.point_new_degrees(circle[1] - circle[0],
circle[2] + circle[0])
x, y = gpsmap.convert_geographic_to_screen(top_left)
x2, y2 = gpsmap.convert_geographic_to_screen(bottom_right)
drawable.draw_arc(gc, False, x, y, x2 - x, y2 - y, 0, 360*64)
def do_render(self, gpsmap):
pass
def do_busy(self):
return False
def do_button_press(self, gpsmap, gdkeventbutton):
return False
gobject.type_register(SelectionLayer)
class osmGpsMap():
def __init__(self):
self.vbox = None
self.cross_map = None
self.osm = None
self.show_tooltips = True
self.selection_layer = None
def build_widget(self):
self.vbox = gtk.VBox(False, 0)
cache_path = os.path.join(const.HOME_DIR, 'maps')
if not os.path.isdir(cache_path):
try:
os.mkdir(cache_path, 0750)
except:
ErrorDialog(_("Can't create tiles cache directory %s") %
cache_path )
return self.vbox
self.change_map(None,config.get("geography.map_service"))
return self.vbox
def change_map(self, obj, map_type):
if obj is not None:
self.osm.layer_remove_all()
self.osm.image_remove_all()
self.vbox.remove(self.osm)
self.osm.destroy()
tiles_path=os.path.join(GEOGRAPHY_PATH, constants.tiles_path[map_type])
if not os.path.isdir(tiles_path):
try:
os.mkdir(tiles_path, 0750)
except:
ErrorDialog(_("Can't create tiles cache directory for '%s'.") %
constants.map_title[map_type])
config.set("geography.map_service", map_type)
self.current_map = map_type
if 0:
self.osm = DummyMapNoGpsPoint()
else:
self.osm = osmgpsmap.GpsMap(tile_cache=tiles_path,
map_source=constants.map_type[map_type])
current_map = osmgpsmap.GpsMapOsd( show_dpad=False, show_zoom=True)
self.osm.layer_add(current_map)
self.osm.layer_add(DummyLayer())
self.selection_layer = self.add_selection_layer()
self.cross_map = osmgpsmap.GpsMapOsd( show_crosshair=False)
self.set_crosshair(config.get("geography.show_cross"))
self.osm.set_center_and_zoom(config.get("geography.center-lat"),
config.get("geography.center-lon"),
config.get("geography.zoom") )
self.osm.connect('button_release_event', self.map_clicked)
self.osm.connect('changed', self.zoom_changed)
self.osm.show()
self.vbox.pack_start(self.osm)
if obj is not None:
self._createmap(None)
def add_selection_layer(self):
selection_layer = SelectionLayer()
self.osm.layer_add(selection_layer)
return selection_layer
def get_selection_layer(self):
return self.selection_layer
def remove_layer(self, layer):
self.osm.layer_remove(layer)
def zoom_changed(self, zoom):
config.set("geography.zoom",self.osm.props.zoom)
self.save_center(self.osm.props.latitude, self.osm.props.longitude)
def save_center(self, lat, lon):
"""
Save the longitude and lontitude in case we switch between maps.
"""
config.set("geography.center-lat",lat)
config.set("geography.center-lon",lon)
def map_clicked(self, osm, event):
lat,lon = self.osm.get_event_location(event).get_degrees()
if event.button == 1:
# do we click on a marker ?
marker = self.is_there_a_marker_here(event, lat, lon)
elif event.button == 3:
self.build_nav_menu(osm, event, lat, lon )
else:
self.save_center(lat,lon)
def is_there_a_marker_here(self, lat, lon):
raise NotImplementedError
def set_crosshair(self,active):
"""
Show or hide the crosshair ?
"""
if active:
self.cross_map = osmgpsmap.GpsMapOsd( show_crosshair=True)
self.osm.layer_add( self.cross_map )
# The two following are to force the map to update
self.osm.zoom_in()
self.osm.zoom_out()
else:
self.osm.layer_remove(self.cross_map)
pass