342 lines
12 KiB
Python
342 lines
12 KiB
Python
# -*- python -*-
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# -*- coding: utf-8 -*-
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#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2011-2012 Serge Noiraud
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id: grampsmaps.py 18399 2011-11-02 17:15:20Z noirauds $
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#-------------------------------------------------------------------------
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#
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# Python modules
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#
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#-------------------------------------------------------------------------
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import os
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import gobject
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#------------------------------------------------------------------------
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#
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# Set up logging
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#
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#------------------------------------------------------------------------
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import logging
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_LOG = logging.getLogger("maps.osmgps")
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#-------------------------------------------------------------------------
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#
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# GTK/Gnome modules
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#
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#-------------------------------------------------------------------------
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import gtk
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#-------------------------------------------------------------------------
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#
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# Gramps Modules
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#
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#-------------------------------------------------------------------------
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import const
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import constants
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from dummylayer import DummyLayer
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from dummynogps import DummyMapNoGpsPoint
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from selectionlayer import SelectionLayer
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from lifewaylayer import LifeWayLayer
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from gen.ggettext import sgettext as _
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from config import config
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from QuestionDialog import ErrorDialog
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#-------------------------------------------------------------------------
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#
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# OsmGps
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#
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#-------------------------------------------------------------------------
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try:
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import osmgpsmap
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except:
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raise
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class OsmGps():
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def __init__(self):
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"""
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Initialize the map
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"""
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self.vbox = None
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self.cross_map = None
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self.osm = None
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self.show_tooltips = True
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self.zone_selection = False
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self.selection_layer = None
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self.lifeway_layer = None
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self.context_id = 0
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self.begin_selection = None
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self.end_selection = None
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self.current_map = None
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self.places_found = None
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def build_widget(self):
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"""
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create the vbox
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"""
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self.vbox = gtk.VBox(False, 0)
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cache_path = config.get('geography.path')
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if not os.path.isdir(cache_path):
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try:
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os.makedirs(cache_path, 0755) # create dir like mkdir -p
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except:
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ErrorDialog(_("Can't create tiles cache directory %s") %
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cache_path )
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return self.vbox
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self.change_map(None, config.get("geography.map_service"))
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return self.vbox
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def change_map(self, obj, map_type):
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"""
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Change the current map
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"""
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if obj is not None:
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self.osm.layer_remove_all()
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self.osm.image_remove_all()
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self.vbox.remove(self.osm)
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self.osm.destroy()
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tiles_path = os.path.join(config.get('geography.path'),
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constants.tiles_path[map_type])
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if not os.path.isdir(tiles_path):
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try:
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os.makedirs(tiles_path, 0755) # create dir like mkdir -p
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except:
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ErrorDialog(_("Can't create tiles cache directory for '%s'.") %
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constants.map_title[map_type])
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config.set("geography.map_service", map_type)
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self.current_map = map_type
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if 0:
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self.osm = DummyMapNoGpsPoint()
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else:
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self.osm = osmgpsmap.GpsMap(tile_cache=tiles_path,
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map_source=constants.map_type[map_type])
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current_map = osmgpsmap.GpsMapOsd( show_dpad=False, show_zoom=True)
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self.end_selection = None
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self.osm.layer_add(current_map)
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self.osm.layer_add(DummyLayer())
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self.selection_layer = self.add_selection_layer()
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self.lifeway_layer = self.add_lifeway_layer()
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self.cross_map = osmgpsmap.GpsMapOsd( show_crosshair=False)
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self.set_crosshair(config.get("geography.show_cross"))
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self.osm.set_center_and_zoom(config.get("geography.center-lat"),
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config.get("geography.center-lon"),
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config.get("geography.zoom") )
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self.osm.connect('button_release_event', self.map_clicked)
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self.osm.connect('button_press_event', self.map_clicked)
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self.osm.connect("motion-notify-event", self.motion_event)
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self.osm.connect('changed', self.zoom_changed)
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self.osm.show()
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self.vbox.pack_start(self.osm)
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def add_selection_layer(self):
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"""
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add the selection layer
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"""
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selection_layer = SelectionLayer()
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self.osm.layer_add(selection_layer)
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return selection_layer
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def get_selection_layer(self):
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"""
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get the selection layer
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"""
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return self.selection_layer
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def add_lifeway_layer(self):
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"""
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add the track or life ways layer
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"""
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lifeway_layer = LifeWayLayer()
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self.osm.layer_add(lifeway_layer)
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return lifeway_layer
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def get_lifeway_layer(self):
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"""
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get the track or life ways layer
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"""
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return self.lifeway_layer
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def remove_layer(self, layer):
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"""
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remove the specified layer
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"""
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self.osm.layer_remove(layer)
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def zoom_changed(self, zoom):
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"""
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save the zoom and the position
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"""
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config.set("geography.zoom", self.osm.props.zoom)
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self.save_center(self.osm.props.latitude, self.osm.props.longitude)
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def motion_event(self, osmmap, event):
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"""
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Moving during selection
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"""
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current = osmgpsmap.point_new_degrees(0.0, 0.0)
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osmmap.convert_screen_to_geographic(int(event.x), int(event.y), current)
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lat, lon = current.get_degrees()
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if self.zone_selection:
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# We draw a rectangle to show the selected region.
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layer = self.get_selection_layer()
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if layer:
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self.osm.layer_remove(layer)
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self.selection_layer = self.add_selection_layer()
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if self.end_selection == None:
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self.selection_layer.add_rectangle(self.begin_selection,
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current)
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else:
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self.selection_layer.add_rectangle(self.begin_selection,
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self.end_selection)
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else:
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places = self.is_there_a_place_here(lat, lon)
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mess = ""
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for plc in places:
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if mess != "":
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mess += " || "
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mess += plc[0]
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self.uistate.status.pop(self.context_id)
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self.context_id = self.uistate.status.push(1, mess)
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def save_center(self, lat, lon):
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"""
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Save the longitude and lontitude in case we switch between maps.
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"""
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_LOG.debug("save_center : %s,%s" % (lat, lon) )
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if ( -90.0 < lat < +90.0 ) and ( -180.0 < lon < +180.0 ):
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config.set("geography.center-lat", lat)
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config.set("geography.center-lon", lon)
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else:
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_LOG.debug("save_center : new coordinates : %s,%s" % (lat, lon) )
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_LOG.debug("save_center : old coordinates : %s,%s" % (lat, lon) )
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# osmgpsmap bug ? reset to prior values to avoid osmgpsmap problems.
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self.osm.set_center_and_zoom(config.get("geography.center-lat"),
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config.get("geography.center-lon"),
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config.get("geography.zoom") )
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def activate_selection_zoom(self, osm, event):
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"""
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Zoom when in zone selection
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"""
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if self.end_selection is not None:
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self._autozoom()
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return True
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def map_clicked(self, osm, event):
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"""
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Someone click on the map. Look at if we have a marker.
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mouse button 1 : zone selection or marker selection
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mouse button 2 : begin zone selection
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mouse button 3 : call the menu
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"""
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lat, lon = self.osm.get_event_location(event).get_degrees()
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current = osmgpsmap.point_new_degrees(0.0, 0.0)
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osm.convert_screen_to_geographic(int(event.x), int(event.y), current)
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lat, lon = current.get_degrees()
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if event.button == 1:
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if self.end_selection is not None:
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self.activate_selection_zoom(osm, event)
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self.end_selection = None
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else:
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# do we click on a marker ?
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self.is_there_a_marker_here(event, lat, lon)
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elif event.button == 2 and event.type == gtk.gdk.BUTTON_PRESS:
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self.begin_selection = current
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self.end_selection = None
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self.zone_selection = True
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elif event.button == 2 and event.type == gtk.gdk.BUTTON_RELEASE:
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self.end_selection = current
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self.zone_selection = False
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elif event.button == 3:
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self.build_nav_menu(osm, event, lat, lon )
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else:
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self.save_center(lat, lon)
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def is_there_a_place_here(self, lat, lon):
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"""
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Is there a place at this position ?
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"""
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mark_selected = []
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oldplace = ""
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for mark in self.places_found:
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# as we are not precise with our hand, reduce the precision
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# depending on the zoom.
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if mark[0] != oldplace:
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oldplace = mark[0]
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precision = {
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1 : '%3.0f', 2 : '%3.1f', 3 : '%3.1f',
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4 : '%3.1f', 5 : '%3.2f', 6 : '%3.2f',
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7 : '%3.2f', 8 : '%3.3f', 9 : '%3.3f',
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10 : '%3.3f', 11 : '%3.3f', 12 : '%3.3f',
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13 : '%3.3f', 14 : '%3.4f', 15 : '%3.4f',
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16 : '%3.4f', 17 : '%3.4f', 18 : '%3.4f'
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}.get(config.get("geography.zoom"), '%3.1f')
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shift = {
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1 : 5.0, 2 : 5.0, 3 : 3.0,
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4 : 1.0, 5 : 0.5, 6 : 0.3, 7 : 0.15,
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8 : 0.06, 9 : 0.03, 10 : 0.015,
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11 : 0.005, 12 : 0.003, 13 : 0.001,
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14 : 0.0005, 15 : 0.0003, 16 : 0.0001,
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17 : 0.0001, 18 : 0.0001
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}.get(config.get("geography.zoom"), 5.0)
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latp = precision % lat
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lonp = precision % lon
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mlatp = precision % float(mark[1])
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mlonp = precision % float(mark[2])
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latok = lonok = False
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if (float(mlatp) >= (float(latp) - shift) ) and \
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(float(mlatp) <= (float(latp) + shift) ):
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latok = True
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if (float(mlonp) >= (float(lonp) - shift) ) and \
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(float(mlonp) <= (float(lonp) + shift) ):
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lonok = True
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if latok and lonok:
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mark_selected.append(mark)
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return mark_selected
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def build_nav_menu(self, osm, event, lat, lon):
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"""
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Must be implemented in the caller class
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"""
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raise NotImplementedError
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def is_there_a_marker_here(self, event, lat, lon):
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"""
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Must be implemented in the caller class
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"""
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raise NotImplementedError
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def set_crosshair(self, active):
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"""
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Show or hide the crosshair ?
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"""
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if active:
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self.cross_map = osmgpsmap.GpsMapOsd( show_crosshair=True)
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self.osm.layer_add( self.cross_map )
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# The two following are to force the map to update
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self.osm.zoom_in()
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self.osm.zoom_out()
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else:
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self.osm.layer_remove(self.cross_map)
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