Show _MapView.py syntax highlighted
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2001-2006 Donald N. Allingham
#
# 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: _MapView.py 7017 2006-07-11 20:56:59Z dallingham $
#-------------------------------------------------------------------------
#
# Python modules
#
#-------------------------------------------------------------------------
from gettext import gettext as _
import gc
import logging
import os
import math
import urllib
import urllib2
from xml.dom.minidom import parseString as xmlStringParser
log = logging.getLogger(".")
#-------------------------------------------------------------------------
#
# GTK/Gnome modules
#
#-------------------------------------------------------------------------
import gobject
import gtk
#-------------------------------------------------------------------------
#
# Gramps Modules
#
#-------------------------------------------------------------------------
import PageView
import Config
import const
use_online_map = Config.get(Config.ONLINE_MAPS)
# Some initial places for debugging
glob_loc_data = [ # (Name, longitude, latitude)
("_Center", 0,0),
("_North",0,90),
("_South",0,-90),
("_West",-180,0),
("_East",180,0),
("Chicago",-87.75,41.83),
("Berlin",13.42,52.53),
("Honolulu",-157.83,21.32),
("Madrid",-3.72,40.42),
("Moscow",37.70,55.75),
("Vienna",16.37,48.22),
("Sydney",151.17,-33.92),
("Rio de Janeiro",-43.28,-22.88),
("Tokyo",139.75,35.67),
("Cape Town",18.47,-33.93),
("Anchorage",-150.00,61.17),
("Mannheim-Wallstadt",8.55,49.48),
("Mannheim-Neckarau",8.48,49.45),
("Gorxheimertal",8.73,49.53)]
enable_debug = False
# Draws a map image and tries to allocate space in the correct aspect ratio
class GuideMap(gtk.DrawingArea):
def __init__(self, map_pixbuf):
gtk.DrawingArea.__init__(self)
self.map_pixbuf = map_pixbuf
self.connect("expose-event", self.expose_cb)
self.connect("size-allocate", self.size_allocate_cb)
self.gc = None
self.current_area = None
self.current_spot = None
self.old_size = (-1,-1)
# Set hightlight region
def hightlight_area( self, area):
self.current_area = area
self.queue_draw()
# Set hightlight region
def hightlight_spot( self, spot):
self.current_spot = spot
self.queue_draw()
# Redraw the image
def expose_cb(self,widget,event):
if not self.gc:
self.gc = self.window.new_gc()
self.gc.set_foreground( self.get_colormap().alloc_color("red"))
self.gc.set_background( self.get_colormap().alloc_color("blue"))
if self.backbuf and self.gc:
self.window.draw_pixbuf( self.gc, self.backbuf, 0,0, 0,0, -1,-1)
if self.current_area:
r = self.map_to_screen(self.current_area[0],
self.current_area[1],
self.current_area[2],
self.current_area[3])
self.window.draw_rectangle( self.gc, False,
r[0],r[1],r[2],r[3])
if self.current_spot:
r = self.map_to_screen(self.current_spot[0],
self.current_spot[1])
self.window.draw_line( self.gc,0,r[1],
self.backbuf.get_width(),r[1])
self.window.draw_line( self.gc,r[0],0,
r[0],self.backbuf.get_height())
# Scale backbuffer
def size_allocate_cb(self,widget,allocation):
# Always request a height, that is half of the width
w = max( 128,allocation.width)
self.set_size_request(-1,w/2)
# only create new backbuffer if size is different
new_size = (allocation.width,allocation.height)
if new_size is not self.old_size:
self.old_size = new_size
self.backbuf = self.map_pixbuf.scale_simple(
self.old_size[0],
self.old_size[1],
gtk.gdk.INTERP_BILINEAR)
gc.collect()
def map_to_screen( self, x,y,w=None,h=None):
px = int((float(x) + 180.0) / 360.0 * self.backbuf.get_width())
py = int((90-float(y)) / 180.0 * self.backbuf.get_height())
if w and h:
pw = int(float(w) / 360.0 * self.backbuf.get_width())
ph = int(float(h) / 180.0 * self.backbuf.get_height())
return (px,py,pw,ph)
return (px,py)
# Map tile files used by the ZoomMap
class MapTile:
def __init__( self, filename, x, y, w, h, pw, ph):
self.filename = filename
self.full_path = os.path.join(const.image_dir,filename)
self.map_x = float(x)
self.map_y = float(y)
self.map_width = float(w)
self.map_height = float(h)
self.map_pixel_width = float(pw)
self.map_pixel_height = float(ph)
self.source_pixbuf = None
self.source_scale = self.map_pixel_width / self.map_width
self.scale = None
self.scaled_pixbuf = None
self.scaled_map_x = None
self.scaled_map_y = None
def set_viewport( self, target_scale, x_in, y_in, w_in, h_in):
# intersect viewport with map area
x = max(self.map_x, max(-180.0,x_in))
y = min(self.map_y, min( 90.0,y_in))
xmax = min( min(180.0,x_in+w_in), self.map_x+self.map_width)
ymin = max( max(-90.0,y_in-h_in), self.map_y-self.map_width)
w = xmax-x
h = y-ymin
if w > 0.0 and h > 0.0:
# crop source tile to not scale the whole image_dir
xoffset = max(0,math.floor((x - self.map_x) * self.source_scale))
xmax = max(0,math.ceil((x+w - self.map_x) * self.source_scale))
yoffset = min(self.map_pixel_width,math.floor(-(y - self.map_y) * self.source_scale))
ymax = min(self.map_pixel_height,math.ceil(-(y-h - self.map_y) * self.source_scale))
rescale = target_scale / self.source_scale
if int((xmax-xoffset)*rescale) > 0 and int((ymax-yoffset)*rescale) > 0:
self.scaled_map_x = self.map_x + xoffset / self.source_scale
self.scaled_map_y = self.map_y - yoffset / self.source_scale
self.scaled_map_pixel_w = int((xmax-xoffset)*rescale)
self.scaled_map_pixel_h = int((ymax-yoffset)*rescale)
if enable_debug:
print
print "Source-Map origin: %f x %f, %f, %f" % (self.map_x,self.map_y,self.map_width,self.map_height)
print "Source-Map pixels: %f x %f" % (self.map_pixel_width,self.map_pixel_height)
print "Source-Map scale: %f" % self.source_scale
print "Target origin: %f x %f, %f, %f" % (x,y,w,h)
print "Target scale: %f" % target_scale
print "Target crop: %f x %f, %f x %f" % (xoffset,yoffset,xmax,ymax)
print "Origin of crop: %f x %f" % (self.scaled_map_x,self.scaled_map_y)
print "scaled tile size: %f x %f pix" % (self.scaled_map_pixel_w,self.scaled_map_pixel_h)
try:
if not self.source_pixbuf:
self.source_pixbuf = gtk.gdk.pixbuf_new_from_file( self.full_path)
clip_pixbuf = self.source_pixbuf.subpixbuf(int(xoffset),int(yoffset),int(xmax-xoffset),int(ymax-yoffset))
self.scale = target_scale
self.scaled_pixbuf = clip_pixbuf.scale_simple( int((xmax-xoffset)*rescale), int((ymax-yoffset)*rescale), gtk.gdk.INTERP_BILINEAR)
clip_pixbuf = None
except:
pass
else:
self.scale = None
self.scaled_pixbuf = None
else:
self.scale = None
self.scaled_pixbuf = None
def free(self):
self.scale = None
self.scaled_pixbuf = None
class WMSMapTile:
def __init__(self,capabilities,change_cb=None):
self.change_cb = change_cb
self.scaled_pixbuf = None
self.handler_running = False
self.target_scale = 0.0
self.scaled_map_x = 0.0
self.scaled_map_y = 0.0
self.scaled_map_pixel_w = 0.0
self.scaled_map_pixel_h = 0.0
self.capabilities_url = capabilities
u_reader = urllib2.urlopen(self.capabilities_url)
# TODO: Put into an idle handler or thread
response_body = u_reader.read()
u_reader.close()
xml_doc = xmlStringParser( response_body)
# validate name of root element
e = xml_doc.documentElement
if e.nodeName != "WMT_MS_Capabilities":
print "unsupported Document type '%s'" % e.nodeName
return None
self.map_request_params = {}
self.map_request_params["VERSION"] = e.getAttribute("version")
self.map_request_params["REQUEST"] = "GetMap"
self.map_request_params["SERVICE"] = "WMS"
self.map_request_params["REQUEST"] = "GetMap"
self.map_request_params["REQUEST"] = "GetMap"
self.map_request_params["FORMAT"] = "image/png"
self.map_request_params["SRS"] = "epsg:4326"
self.map_request_params["LAYERS"] = ""
# Child-nodes of root element
for n in e.childNodes:
if n.nodeName == "Service":
# Parse Service header
map_title = n.getElementsByTagName("Title")[0].firstChild.data
print " MAP Title: %s" % map_title
try:
map_fees = e.getElementsByTagName("Fees")[0].firstChild.data
except IndexError:
map_fees = "-"
print " MAP Fees: %s" % map_fees
try:
map_access_constraints = e.getElementsByTagName("AccessConstraints")[0].firstChild.data
except IndexError:
map_access_constraints = "-"
print " MAP AccessConstraints: %s" % map_access_constraints
elif n.nodeName == "Capability":
# Parse Capabilities
for n2 in n.childNodes:
if n2.nodeName == "Request":
t1 = n2.getElementsByTagName("GetMap")[0]
t2 = t1.getElementsByTagName("DCPType")[0]
t3 = t2.getElementsByTagName("HTTP")[0]
t4 = t3.getElementsByTagName("Get")[0]
t5 = t4.getElementsByTagName("OnlineResource")[0]
self.map_get_url = t5.getAttribute("xlink:href")
if enable_debug:
print(" Map Tile base url: %s" % self.map_get_url)
elif n2.nodeName == "Layer":
# parse Layers
if not self._srs_is_supported(n2.getElementsByTagName("SRS")[0].firstChild.data):
print "Layer coordinates not supported :-("
return None
layer_title = n2.getElementsByTagName("Title")[0].firstChild.data
if enable_debug:
print " Layer: %s" % layer_title
for n3 in n2.childNodes:
if n3.nodeName == "Layer":
# parse Layers
layer_title = n3.getElementsByTagName("Name")[0].firstChild.data
if enable_debug:
print " - Layer: %s" % layer_title
if self.map_request_params["LAYERS"]:
self.map_request_params["LAYERS"] += ","
self.map_request_params["LAYERS"] += layer_title
def _srs_is_supported( self, srs_string):
list = srs_string.lower().split()
if "epsg:4326" in list:
return True
return False
def idle_handler( self):
""" fetches parts of the download and feeds them into a PixbufLoader """
if enable_debug:
print "idle_handler"
if not self.handler_running or not self.url_handler:
return False
buf = self.url_handler.read(5000)
if enable_debug:
print len(buf)
if len(buf) > 0:
self.pixbufloader.write(buf)
self.scaled_pixbuf = self.pixbufloader.get_pixbuf()
else:
if enable_debug:
print "no more content."
self.handler_running = False
self.url_handler.close()
try:
self.pixbufloader.close()
except gobject.GError:
pass # dont crash if nothing or not an image has been downloaded
return False
self.change_cb()
return True
def set_viewport( self, target_scale, x_in, y_in, w_in, h_in):
new_scaled_map_pixel_w = int(w_in*target_scale)
new_scaled_map_pixel_h = int(h_in*target_scale)
if self.target_scale != target_scale\
or self.scaled_map_x > x_in\
or self.scaled_map_y < y_in\
or self.scaled_map_pixel_w < new_scaled_map_pixel_w\
or self.scaled_map_pixel_h < new_scaled_map_pixel_h:
# only download new map is new viewport is larger
# TODO: Fix above to be correct and add a cache of already downloaded tiles
self.target_scale = target_scale
self.scaled_map_x = x_in
self.scaled_map_y = y_in
self.scaled_map_pixel_w = int(w_in*target_scale)
self.scaled_map_pixel_h = int(h_in*target_scale)
self.map_request_params["BBOX"] = "%f,%f,%f,%f" % (x_in,y_in-h_in,x_in+w_in,y_in) # Neds to be set for request
self.map_request_params["WIDTH"] = int(w_in*target_scale)
self.map_request_params["HEIGHT"] = int(h_in*target_scale)
params = urllib.urlencode(self.map_request_params)
if self.handler_running:
if enable_debug:
print "stopping current download"
self.url_handler.close()
try:
self.pixbufloader.close()
except gobject.GError:
pass # dont crash if nothing or not an image has been downloaded
self.scaled_pixbuf = None
self.url_handler = urllib.urlopen(self.map_get_url+params)
self.handler_running = gobject.idle_add(self.idle_handler)
self.pixbufloader = gtk.gdk.PixbufLoader()
else:
if enable_debug:
print "new viewport fits inside old one. No download required."
def free(self):
pass
# Zoomable map image
class ZoomMap( gtk.DrawingArea):
def __init__( self, place_marker_pixbuf, hightlight_marker_pixbuf):
gtk.DrawingArea.__init__(self)
self.place_marker_pixbuf = place_marker_pixbuf
self.hightlight_marker_pixbuf = hightlight_marker_pixbuf
self.add_events(gtk.gdk.POINTER_MOTION_MASK) # position overlay
self.connect("expose-event", self.expose_cb)
self.connect("size-allocate", self.size_allocate_cb)
if enable_debug:
self.connect("motion-notify-event", self.motion_notify_event_cb)
self.gc = None
self.current_pixel_size = (-1,-1)
self.zoom_pos = (0,0)
self.magnifer = 0.0 # in pixel per degree
self.guide = None
self.textlayout = self.create_pango_layout("")
self.map_sources = {}
self.initial_exposed = False
if use_online_map:
self.map_sources[0.0] = []
self.map_sources[0.0].append(WMSMapTile("http://www2.demis.nl/wms/wms.asp?wms=WorldMap&VERSION=1.1.1&REQUEST=GetCapabilities",self.queue_draw))
def add_map_source( self,filename, x, y, w, h,pw,ph):
tile = MapTile( filename, x, y, w, h, pw, ph)
if not tile.source_scale in self.map_sources:
self.map_sources[tile.source_scale] = []
self.map_sources[tile.source_scale].append( tile)
# Set the guide map that should follow the zoom area
def set_guide( self, guide):
self.guide = guide
def set_location_model( self, model, idx_name, idx_long, idx_lat):
self.location_model = model
self.idx_name = idx_name
self.idx_long = idx_long
self.idx_lat = idx_lat
def motion_notify_event_cb(self,widget,event):
self.textlayout.set_text( "Position: %03.0f,%03.0f pixel" % (event.x,event.y))
(w,h) = self.textlayout.get_pixel_size()
self.gc.set_foreground( self.get_colormap().alloc_color("white"))
self.window.draw_rectangle( self.gc, True, 10,50,w,h)
self.gc.set_foreground( self.get_colormap().alloc_color("red"))
self.window.draw_layout( self.gc, 10, 50, self.textlayout)
(lon,lat) = self.screen_to_map(event.x,event.y)
self.textlayout.set_text( "Position: %03.0f,%03.0f degree" % (lon,lat))
(w,h) = self.textlayout.get_pixel_size()
self.gc.set_foreground( self.get_colormap().alloc_color("white"))
self.window.draw_rectangle( self.gc, True, 10,70,w,h)
self.gc.set_foreground( self.get_colormap().alloc_color("red"))
self.window.draw_layout( self.gc, 10, 70, self.textlayout)
# Redraw the image
def expose_cb(self,widget,event):
if not self.gc:
self.gc = self.window.new_gc()
self.gc.set_foreground( self.get_colormap().alloc_color("red"))
self.gc.set_background( self.get_colormap().alloc_color("blue"))
if not self.backbuf:
self.size_allocate_cb( self,self.get_allocation())
if self.backbuf and self.gc:
#draw all maps
scales = self.map_sources.keys()
scales.sort()
for scale in scales:
for map in self.map_sources[scale]:
if map.scaled_pixbuf:
(px,py) = self.map_to_screen( map.scaled_map_x, map.scaled_map_y)
self.window.draw_pixbuf( self.gc, map.scaled_pixbuf, 0,0, px,py)
if enable_debug:
self.window.draw_rectangle( self.gc, False, px,py,map.scaled_map_pixel_w,map.scaled_map_pixel_h)
self.window.draw_line( self.gc, px,py,px+map.scaled_map_pixel_w,py+map.scaled_map_pixel_h)
self.window.draw_line( self.gc, px,py+map.scaled_map_pixel_h,px+map.scaled_map_pixel_w,py)
gc.collect()
# draw all available locations
if self.location_model:
iter = self.location_model.get_iter_first()
while iter:
(n,x,y) = self.location_model.get( iter, self.idx_name, self.idx_long, self.idx_lat)
(px,py) = self.map_to_screen( x, y)
#if px > 0 and py > 0 and px < self.backbuf.get_width() and py < self.backbuf.get_height():
# draw only visible markers
#self.window.draw_pixbuf(
# self.gc,
# self.place_marker_pixbuf,
# 0,0,
# px-self.place_marker_pixbuf.get_width()/2,
# py-self.place_marker_pixbuf.get_height()/2,
# -1,-1)
self.textlayout.set_text(n)
self.window.draw_layout(
self.gc,
px,py,
self.textlayout)
iter = self.location_model.iter_next( iter)
# hightlight current location
(px,py) = self.map_to_screen( self.zoom_pos[0], self.zoom_pos[1])
self.window.draw_pixbuf(
self.gc,
self.hightlight_marker_pixbuf,
0,0,
px-self.hightlight_marker_pixbuf.get_width()/2,
py-self.hightlight_marker_pixbuf.get_height()/2,
-1,-1)
#self.window.draw_rectangle( self.gc, False, px-3,py-3, 6,6)
#(px1,py1) = self.map_to_screen(-180, 90)
#(px2,py2) = self.map_to_screen( 180,-90)
#self.window.draw_rectangle( self.gc, False, px1,py1,px2-px1,py2-py1)
#self.window.draw_line( self.gc, px1,py1,px2,py2)
#self.window.draw_line( self.gc, px1,py2,px2,py1)
if enable_debug:
# Output debugging info
self.textlayout.set_text( "Magnifer: %f pixel per degree" % self.magnifer)
self.window.draw_layout( self.gc, 10, 10, self.textlayout)
self.textlayout.set_text( "Current map: %f pixel per degree" % self.selected_map_scale)
self.window.draw_layout( self.gc, 10, 30, self.textlayout)
def map_to_screen( self, lon, lat):
px = int(self.current_pixel_size[0] / 2.0 + (lon - self.zoom_pos[0]) * self.magnifer)
py = int(self.current_pixel_size[1] / 2.0 - (lat - self.zoom_pos[1]) * self.magnifer)
return( px, py)
def screen_to_map( self, px, py):
px = float(px)
py = float(py)
lon = (px - self.current_pixel_size[0]/2) / self.magnifer + self.zoom_pos[0];
lat = -(py - self.current_pixel_size[1]/2) / self.magnifer + self.zoom_pos[1];
return( lon, lat)
# Scale backbuffer
def size_allocate_cb(self,widget,allocation):
# only create new backbuffer if size is different
new_size = (allocation.width,allocation.height)
if new_size is not self.current_pixel_size or not self.backbuf:
self.backbuf = True
self.current_pixel_size = new_size
if self.magnifer == 0.0:
# scale map to full width
self.magnifer = self.current_pixel_size[0] / 360.0
x0,y0 = self.screen_to_map( 0, 0)
x1,y1 = self.screen_to_map( new_size[0], new_size[1])
self.guide.hightlight_area( (x0,y0,x1-x0, y0-y1))
def cmpfunc(s):
return((self.magnifer-s)*(self.magnifer-s))
# select best matching tile set
self.selected_map_scale = None
smallest_scale = None
largest_scale = None
for s in self.map_sources.keys():
if not self.selected_map_scale or cmpfunc(s) < cmpfunc(self.selected_map_scale):
self.selected_map_scale = s
if not smallest_scale or s < smallest_scale:
smallest_scale = s
if not largest_scale or s > largest_scale:
largest_scale = s
if enable_debug:
print "scale of display: %f" % self.magnifer
print "available map scales:"
print self.map_sources.keys()
print "largest scale: %f" % largest_scale
print "smallest scale: %f" % smallest_scale
print "selected scale: %f" % self.selected_map_scale
for s in self.map_sources.keys():
for map in self.map_sources[s]:
if s == self.selected_map_scale or s == smallest_scale:
map.set_viewport( self.magnifer, x0, y0, x1-x0, y0-y1)
else:
map.free()
# Scroll to requested position
def scroll_to( self, long, lat):
self.zoom_pos = (float( min(180,(max(-180,long)))), float(min(90,(max(-90,lat)))))
self.backbuf = None
if self.guide:
self.guide.hightlight_spot( self.zoom_pos)
self.queue_draw()
def zoom_out(self):
self.magnifer = max( 1.0, self.magnifer * 2.0/3.0)
self.backbuf = None
self.queue_draw()
def zoom_in(self):
self.magnifer = min( 1000.0, self.magnifer * 1.5)
self.backbuf = None
self.queue_draw()
def zoom_normal(self):
self.magnifer = 1.0
self.magnifer = self.selected_map_scale
self.backbuf = None
self.queue_draw()
def zoom_fit(self):
self.magnifer = self.current_pixel_size[0] / 360.0
self.backbuf = None
self.queue_draw()
# Place list widget
class MapPlacesList(gtk.TreeView):
def __init__(self, data):
self.lstore = gtk.ListStore(
gobject.TYPE_STRING,
gobject.TYPE_FLOAT,
gobject.TYPE_FLOAT)
self.change_data( data)
gtk.TreeView.__init__(self, self.lstore)
self.set_rules_hint(True)
self.set_search_column(0)
column = gtk.TreeViewColumn('Place', gtk.CellRendererText(), text=0)
column.set_sort_column_id(0)
self.append_column(column)
column = gtk.TreeViewColumn('Lat', gtk.CellRendererText(), text=1)
column.set_sort_column_id(1)
self.append_column(column)
column = gtk.TreeViewColumn('Long', gtk.CellRendererText(),text=2)
column.set_sort_column_id(2)
self.append_column(column)
def change_data( self, data):
self.lstore.clear()
for item in data:
iter = self.lstore.append()
self.lstore.set(iter,
0, item[0],
1, item[1],
2, item[2])
# Map View main class
class MapView(PageView.PageView):
def __init__(self,dbstate,uistate):
PageView.PageView.__init__(self, _('Maps'), dbstate, uistate)
dbstate.connect('database-changed',self.change_db)
self.current_marker = None
def navigation_type(self):
return PageView.NAVIGATION_NONE
def define_actions(self):
self.add_action('ZoomIn',gtk.STOCK_ZOOM_IN,
_("Zoom _In"),tip=_("Zoom in by a factor of 2"),
callback=self.zoom_in_cb)
self.add_action('ZoomOut',gtk.STOCK_ZOOM_OUT,
_("Zoom _Out"),tip=_("Zoom out by a factor of 2"),
callback=self.zoom_out_cb)
self.add_action('ZoomNormal',gtk.STOCK_ZOOM_100,
_("_Normal Size"), tip=_("Return to normal size"),
callback=self.zoom_100_cb)
self.add_action('ZoomFit',gtk.STOCK_ZOOM_FIT,
_("Best _Fit"),
tip=_("Produce the best fit of the map in the window"),
callback=self.zoom_fit_cb)
def get_stock(self):
"""
Returns the name of the stock icon to use for the display.
This assumes that this icon has already been registered with
GNOME as a stock icon.
"""
return 'gramps-map'
# For debugging: Reads in location from xearth
def get_xearth_markers(self):
data = []
try:
f = open("/etc/xearth/xearth.markers")
l = f.readline()
#linere = re.compile('[^0-9.-]*(-?[0-9]+\.[0-9]+)[^0-9.-]*(-?[0-9]+\.[0-9]+).*"([^"])".*', "I")
while l:
if not l[0] == "#":
l = l.strip().replace('"',"").replace(" "," ").replace(" "," ").replace(" "," ").replace(" # ",", ")
m = l.split( None, 2)
if len(m) == 3:
data.append( (m[2],float(m[1]),float(m[0])))
l = f.readline()
except IOError:
pass
return data
# Reads in locations from current GRAMPS database
def get_markers_from_database(self, db):
data = []
for place_handle in db.get_place_handles():
place = db.get_place_from_handle( place_handle)
if place:
try:
data.append( (place.get_title(),float(place.get_longitude()),float(place.get_latitude())))
except (TypeError, ValueError):
# ignore places that dont have usable data
pass
return data
# Reads in textfiles from NIMA:
# http://earth-info.nga.mil/gns/html/cntry_files.html
def parse_nima_countryfile(self, filename):
import csv
data = []
try:
csvreader = csv.reader(open(filename), "excel-tab")
l = csvreader.next() # skip header
l = csvreader.next()
line = 1
while l:
if l[17] == "N" and l[9] == "P":
city = l[22]
lat = float( l[3])
lon = float( l[4])
if line % 10 == 0:
data.append( (city, lon, lat))
l = csvreader.next()
line = line + 1
except (IOError,StopIteration):
pass
return data
def build_widget(self):
hbox = gtk.HBox( False, 4)
hbox.set_border_width( 4)
no = gtk.Image()
# The large zoomable map
self.zoom_map = ZoomMap(
gtk.gdk.pixbuf_new_from_file(os.path.join(const.image_dir,"bad.png")),
gtk.gdk.pixbuf_new_from_file(os.path.join(const.image_dir,"good.png")))
if not use_online_map:
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_0.jpg', -180,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_1.jpg', -135,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_2.jpg', -90,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_3.jpg', -45,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_4.jpg', 0,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_5.jpg', 45,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_6.jpg', 90,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_0_7.jpg', 135,90, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_0.jpg', -180,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_1.jpg', -135,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_2.jpg', -90,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_3.jpg', -45,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_4.jpg', 0,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_5.jpg', 45,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_6.jpg', 90,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_1_7.jpg', 135,45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_0.jpg', -180,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_1.jpg', -135,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_2.jpg', -90,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_3.jpg', -45,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_4.jpg', 0,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_5.jpg', 45,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_6.jpg', 90,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_2_7.jpg', 135,0, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_0.jpg', -180,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_1.jpg', -135,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_2.jpg', -90,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_3.jpg', -45,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_4.jpg', 0,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_5.jpg', 45,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_6.jpg', 90,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x3200x1600_tile_3_7.jpg', 135,-45, 45,45, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_0_0.jpg', -180,90, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_0_1.jpg', -90,90, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_0_2.jpg', 0,90, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_0_3.jpg', 90,90, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_1_0.jpg', -180,0, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_1_1.jpg', -90,0, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_1_2.jpg', 0,0, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x1600x800_tile_1_3.jpg', 90,0, 90,90, 400,400)
self.zoom_map.add_map_source('world.topo.200407.3x800x400.jpg', -180,90, 360,180, 800,400)
self.zoom_map.add_map_source('world.topo.200407.3x400x200.jpg', -180,90, 360,180, 400,200)
self.zoom_map.add_map_source('world.topo.200407.3x128x60.jpg', -180,90, 360,180, 128,60)
self.zoom_map.set_size_request(300,300)
hbox.pack_start( self.zoom_map, True, True, 0)
# On the right side
vbox = gtk.VBox( False, 4)
hbox.pack_start( vbox, False, False, 0)
# The small guide map
self.guide_map = GuideMap(
gtk.gdk.pixbuf_new_from_file(os.path.join(const.image_dir,"world.topo.200407.3x128x60.jpg")))
self.guide_map.set_size_request(128,64)
vbox.pack_start( self.guide_map, False, True, 0)
self.zoom_map.set_guide(self.guide_map)
# and the place list
self.place_list_view = MapPlacesList( [])
self.zoom_map.set_location_model(self.place_list_view.get_model(), 0,1,2)
self.place_list_view.connect("cursor-changed", self.entry_select_cb)
self.place_list_view.set_size_request(128,-1)
vport = gtk.ScrolledWindow()
vbox.pack_start(vport,True,True,0)
vport.add( self.place_list_view)
self.rebuild_places()
return hbox
def ui_definition(self):
"""
Specifies the UIManager XML code that defines the menus and buttons
associated with the interface.
"""
return '''<ui>
<toolbar name="ToolBar">
<toolitem action="ZoomIn"/>
<toolitem action="ZoomOut"/>
<toolitem action="ZoomNormal"/>
<toolitem action="ZoomFit"/>
</toolbar>
</ui>'''
def change_db(self,db):
"""
Callback associated with DbState. Whenenver the database
changes, this task is called. In this case, we rebuild the
columns, and connect signals to the connected database. Tere
is no need to store the database, since we will get the value
from self.state.db
"""
db.connect('place-rebuild',self.rebuild_places)
db.connect('place-update',self.rebuild_places)
def rebuild_places(self,handle_list=None):
d = glob_loc_data
try:
d = d + self.get_xearth_markers()
#d = self.parse_nima_countryfile("/tmp/gm.txt")
d = d + self.get_markers_from_database( self.dbstate.db)
except:
log.error("Failed to rebuild places.", exc_info=True)
self.place_list_view.change_data( d)
def entry_select_cb(self,treeview):
s = treeview.get_selection()
(model,sel) = s.get_selected_rows()
for path in sel:
iter = model.get_iter(path)
self.zoom_map.scroll_to(model.get_value(iter,1),
model.get_value(iter,2))
break
def zoom_in_cb(self,obj):
self.zoom_map.zoom_in()
def zoom_out_cb(self,obj):
self.zoom_map.zoom_out()
def zoom_100_cb(self,obj):
self.zoom_map.zoom_normal()
def zoom_fit_cb(self,obj):
self.zoom_map.zoom_fit()
See more files for this project here