# -*- 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 = [] self.rectangles = [] def add_circle(self, r, lat, lon): self.circles.append((r, lat, lon)) def add_rectangle(self, p1, p2): self.rectangles.append((p1, p2)) 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) for rectangle in self.rectangles: top_left, bottom_right = rectangle x, y = gpsmap.convert_geographic_to_screen(top_left) x2, y2 = gpsmap.convert_geographic_to_screen(bottom_right) # be sure when can select a region in all case. if ( x < x2 ): if ( y < y2 ): drawable.draw_rectangle(gc, False, x, y, x2 - x, y2 - y) else: drawable.draw_rectangle(gc, False, x, y2, x2 - x, y - y2) else: if ( y < y2 ): drawable.draw_rectangle(gc, False, x2, y, x - x2, y2 - y) else: drawable.draw_rectangle(gc, False, x2, y2, x - x2, y - y2) 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.zone_selection = False self.selection_layer = None self.context_id = 0 self.begin_selection = None self.end_selection = 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.end_selection = None 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('button_press_event', self.map_clicked) self.osm.connect("motion-notify-event", self.motion_event) 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): _LOG.debug("zoom_changed : %d" % self.osm.props.zoom) config.set("geography.zoom",self.osm.props.zoom) self.save_center(self.osm.props.latitude, self.osm.props.longitude) def motion_event(self, osmmap, event): """ Show the place name if found on the status bar """ current = osmgpsmap.point_new_degrees(0.0,0.0) osmmap.convert_screen_to_geographic(int(event.x), int(event.y), current) lat, lon = current.get_degrees() if self.zone_selection: # We draw a rectangle to show the selected region. layer = self.get_selection_layer() if layer: self.osm.layer_remove(layer) self.selection_layer = self.add_selection_layer() if self.end_selection == None: self.selection_layer.add_rectangle(self.begin_selection, current) else: self.selection_layer.add_rectangle(self.begin_selection, self.end_selection) else: places = self.is_there_a_place_here(lat, lon) mess = "" for p in places: if mess != "": mess += " || " mess += p[0] self.uistate.status.pop(self.context_id) self.context_id = self.uistate.status.push(1, mess) def save_center(self, lat, lon): """ Save the longitude and lontitude in case we switch between maps. """ _LOG.debug("save_center : %s,%s" % (lat, lon) ) if ( -90.0 < lat < +90.0 ) and ( -180.0 < lon < +180.0 ): config.set("geography.center-lat",lat) config.set("geography.center-lon",lon) else: _LOG.debug("save_center : new coordinates : %s,%s" % (lat, lon) ) _LOG.debug("save_center : old coordinates : %s,%s" % (lat, lon) ) # osmgpsmap bug ? reset to prior values to avoid osmgpsmap problems. self.osm.set_center_and_zoom(config.get("geography.center-lat"), config.get("geography.center-lon"), config.get("geography.zoom") ) def activate_selection_zoom(self, osm, event): if self.end_selection is not None: self._autozoom() return True def map_clicked(self, osm, event): lat,lon = self.osm.get_event_location(event).get_degrees() current = osmgpsmap.point_new_degrees(0.0,0.0) osm.convert_screen_to_geographic(int(event.x), int(event.y), current) lat, lon = current.get_degrees() if event.button == 1: if self.end_selection is not None: self.activate_selection_zoom(osm, event) self.end_selection = None else: # do we click on a marker ? marker = self.is_there_a_marker_here(event, lat, lon) elif event.button == 2 and event.type == gtk.gdk.BUTTON_PRESS: self.begin_selection = current self.end_selection = None self.zone_selection = True elif event.button == 2 and event.type == gtk.gdk.BUTTON_RELEASE: self.end_selection = current self.zone_selection = False elif event.button == 3: self.build_nav_menu(osm, event, lat, lon ) else: self.save_center(lat,lon) def is_there_a_place_here(self, lat, lon): """ Is there a place at this position ? """ found = False mark_selected = [] oldplace = "" for mark in self.places_found: # as we are not precise with our hand, reduce the precision # depending on the zoom. if mark[0] != oldplace: oldplace = mark[0] precision = { 1 : '%3.0f', 2 : '%3.1f', 3 : '%3.1f', 4 : '%3.1f', 5 : '%3.2f', 6 : '%3.2f', 7 : '%3.2f', 8 : '%3.3f', 9 : '%3.3f', 10 : '%3.3f', 11 : '%3.3f', 12 : '%3.3f', 13 : '%3.3f', 14 : '%3.4f', 15 : '%3.4f', 16 : '%3.4f', 17 : '%3.4f', 18 : '%3.4f' }.get(config.get("geography.zoom"), '%3.1f') shift = { 1 : 5.0, 2 : 5.0, 3 : 3.0, 4 : 1.0, 5 : 0.5, 6 : 0.3, 7 : 0.15, 8 : 0.06, 9 : 0.03, 10 : 0.015, 11 : 0.005, 12 : 0.003, 13 : 0.001, 14 : 0.0005, 15 : 0.0003, 16 : 0.0001, 17 : 0.0001, 18 : 0.0001 }.get(config.get("geography.zoom"), 5.0) latp = precision % lat lonp = precision % lon mlatp = precision % float(mark[1]) mlonp = precision % float(mark[2]) latok = lonok = False if (float(mlatp) >= (float(latp) - shift) ) and \ (float(mlatp) <= (float(latp) + shift) ): latok = True if (float(mlonp) >= (float(lonp) - shift) ) and \ (float(mlonp) <= (float(lonp) + shift) ): lonok = True if latok and lonok: mark_selected.append(mark) found = True return mark_selected 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