11 class background_map ( gtk.gdk.Pixmap ) :
13 def __init__ ( self , map_size , tileloader ) :
16 self.tileloader = tileloader
18 # Values for minimun fit without border
19 center = map( lambda x : int( math.ceil( x / float(tileloader.tilesize) ) / 2 ) , map_size )
20 size = map( lambda x : 2 * x + 1 , center )
22 self.center = map( lambda x : x + bordersize , center )
23 self.size = map( lambda x : x + 2 * bordersize , size )
24 pixsize = map( lambda x : x * tileloader.tilesize , self.size )
26 # FIXME : seems that reproducing the previous behaviour requires an extra subtraction of 128 to vpor[1]
27 # when moving to non-integer viewports, the shift turns and adition, and changes to vpor[0]
28 self.__vport_base = bordersize * tileloader.tilesize , bordersize * tileloader.tilesize
30 gtk.gdk.Pixmap.__init__( self , None , pixsize[0] , pixsize[1] , 24 )
32 self.fill = map( lambda x : False , range( self.size[0] * self.size[1] ) )
36 def index ( self , x , y ) :
37 return x + y * self.size[0]
39 def get_viewport ( self ) :
40 refpix = self.tileloader.get_refpix()
41 return self.__vport_base[0] + refpix[0] , self.__vport_base[1] + refpix[1]
43 def loadtiles ( self ) :
45 for x in range(self.size[0]) :
46 for y in range(self.size[1]) :
48 if not self.fill[ self.index(x,y) ] :
49 pixbuf = self.tileloader.get_tile( (x-self.center[0],y-self.center[1]) )
51 self.fill[ self.index(x,y) ] = True
53 pixbuf = self.tileloader.emptytile()
55 dest_x = self.tileloader.tilesize * x
56 dest_y = self.tileloader.tilesize * y
57 self.draw_pixbuf( None , pixbuf , 0 , 0 , dest_x , dest_y )
60 def do_change_reftile( self , dx , dy ) :
61 self.tileloader.do_change_reftile( dx , dy )
63 pixsize = self.get_size()
64 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, pixsize[0] , pixsize[1] )
65 pixbuf.get_from_drawable( self , self.get_colormap() , 0 , 0 , 0 , 0 , pixsize[0] , pixsize[1] )
67 # width , source , destination
68 x_vals = [ pixsize[0] , 0 , 0 ]
69 y_vals = [ pixsize[1] , 0 , 0 ]
72 x_vals[0] -= abs(dx) * self.tileloader.tilesize
73 x_vals[cmp(dx,0)] = abs(dx) * self.tileloader.tilesize
75 for x in range(1,1+dx) :
76 for y in range(self.size[1]) : self.fill[ self.index(self.size[0]-x,y) ] = False
78 for x in range(1,1-dx) :
79 for y in range(self.size[1]) : self.fill[ self.index(x,y) ] = False
81 y_vals[0] -= abs(dy) * self.tileloader.tilesize
82 y_vals[cmp(dy,0)] = abs(dy) * self.tileloader.tilesize
84 for y in range(1,1+dy) :
85 for x in range(self.size[0]) : self.fill[ self.index(x,self.size[1]-y) ] = False
87 for y in range(1,1-dy) :
88 for x in range(self.size[0]) : self.fill[ self.index(x,y) ] = False
90 self.draw_pixbuf( None , pixbuf , x_vals[1] , y_vals[1] , x_vals[-1] , y_vals[-1] , x_vals[0] , y_vals[0] )
96 def __init__ ( self , conf ) :
98 self.rootdir = "%s/%s/%s" % ( conf.mapsdir , conf.mapclass , conf.zoom )
99 self.__reftile , self.__refpix = self.get_reference( conf )
101 def do_change_reftile( self , dx , dy ) :
102 self.__reftile[0] += dx
103 self.__reftile[1] += dy
105 def get_refpix ( self ) :
108 def get_reference ( self , conf ) :
109 tilex = self.lon2tilex( conf.lon , conf.zoom )
110 tiley = self.lat2tiley( conf.lat , conf.zoom )
111 tile = tilex[1] , tiley[1]
112 pix = tilex[0] , tiley[0]
113 return map( int , tile ) , map( lambda x : int( self.tilesize * x ) , pix )
115 def lon2tilex ( self , lon , zoom ) :
116 return math.modf( ( lon + 180 ) / 360 * 2 ** zoom )
118 def lat2tiley ( self , lat , zoom ) :
119 lat = lat * math.pi / 180
120 return math.modf( ( 1 - math.log( math.tan( lat ) + 1 / math.cos( lat ) ) / math.pi ) / 2 * 2 ** zoom )
122 def get_tile ( self , tile ) :
123 file = self.tilepath( self.__reftile[0] + tile[0] , self.__reftile[1] + tile[1] )
126 return gtk.gdk.pixbuf_new_from_file( file )
129 # useful members : response.code, response.headers
130 response = urllib2.urlopen( "http://tile.openstreetmap.org/%s/%s/%s.png" % ( zoom , x , y ) )
131 if response.geturl() != "http://tile.openstreetmap.org/11/0/0.png" :
132 fd = open( file , 'w' )
133 fd.write( response.read() )
135 # FIXME : can this actually produce a gobject.GError exception ?
136 return gtk.gdk.pixbuf_new_from_file( file )
142 def tilepath( self , tilex , tiley ) :
143 return "%s/%s/%s.png" % ( self.rootdir , tilex , tiley )
145 def emptytile( self ) :
146 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tilesize, self.tilesize )
147 pixbuf.fill( 0x00000000 )
151 class AbstractmapWidget :
153 def __init__ ( self , config , map_size ) :
157 # Maximum width should be 800, but actually gets reduced
158 self.win_x , self.win_y = map_size
161 self.reftile_x , self.refpix_x = self.lon2tilex( self.conf.lon , self.conf.zoom )
162 self.reftile_y , self.refpix_y = self.lat2tiley( self.conf.lat , self.conf.zoom )
164 def recenter ( self , latlon ) :
166 center = self.gps2pix( latlon , self.center() )
167 pixel = self.gps2pix( (self.conf.lat,self.conf.lon) , self.center() )
169 distance = math.sqrt( (pixel[0]-center[0])**2 + (pixel[1]-center[1])**2 )
171 # FIXME : instead of hardcoded, should depend on the actual display size
173 self.conf.set_latlon( latlon )
175 self.reftile_x , self.refpix_x = self.lon2tilex( self.conf.lon , self.conf.zoom )
176 self.reftile_y , self.refpix_y = self.lat2tiley( self.conf.lat , self.conf.zoom )
180 def tilex2lon ( self , ( tilex , pixx ) , zoom ) :
183 return ( tilex + pixx/self.tile_size ) / 2.0 ** zoom * 360.0 - 180.0
185 def tiley2lat ( self , ( tiley , pixy ) , zoom ) :
188 tiley = math.pi * ( 1 - 2 * ( tiley + pixy/self.tile_size ) / 2.0 ** zoom )
189 return math.degrees( math.atan( math.sinh( tiley ) ) )
191 def SetZoom( self , zoom ) :
193 lat = self.tiley2lat( ( self.reftile_y , self.refpix_y ) , self.conf.zoom )
194 lon = self.tilex2lon( ( self.reftile_x , self.refpix_x ) , self.conf.zoom )
195 self.reftile_x , self.refpix_x = self.lon2tilex( lon , zoom )
196 self.reftile_y , self.refpix_y = self.lat2tiley( lat , zoom )
197 self.conf.set_zoom( zoom )
201 def lon2tilex ( self , lon , zoom ) :
202 number = math.modf( ( lon + 180 ) / 360 * 2 ** zoom )
203 return int( number[1] ) , int( self.tile_size * number[0] )
205 def lat2tiley ( self , lat , zoom ) :
206 lat = lat * math.pi / 180
207 number = math.modf( ( 1 - math.log( math.tan( lat ) + 1 / math.cos( lat ) ) / math.pi ) / 2 * 2 ** zoom )
208 return int( number[1] ) , int( self.tile_size * number[0] )
210 def gps2pix ( self , ( lat , lon ) , ( center_x , center_y ) ) :
212 x_pos = self.lon2tilex( lon , self.conf.zoom )
213 y_pos = self.lat2tiley( lat , self.conf.zoom )
215 dest_x = self.tile_size * ( x_pos[0] - self.reftile_x ) + center_x + x_pos[1]
216 dest_y = self.tile_size * ( y_pos[0] - self.reftile_y ) + center_y + y_pos[1]
218 return dest_x , dest_y
220 def tilename ( self , x , y , zoom ) :
221 file = self.tile2file( self.reftile_x + x , self.reftile_y + y , zoom )
228 # useful members : response.code, response.headers
229 response = urllib2.urlopen( "http://tile.openstreetmap.org/%s/%s/%s.png" % ( zoom , x , y ) )
230 if response.geturl() == "http://tile.openstreetmap.org/11/0/0.png" :
232 fd = open( file , 'w' )
233 fd.write( response.read() )
241 def tile2file( self , tilex , tiley , zoom ) :
242 rootdir = "%s/%s/%s" % ( self.conf.mapsdir , self.conf.mapclass , zoom )
243 if not os.path.isdir( rootdir ) :
245 rootsubdir = "%s/%s" % ( rootdir , tilex )
246 if not os.path.isdir( rootsubdir ) :
248 return "%s/%s.png" % ( rootsubdir , tiley )
250 class interactiveMapWidget :
252 def Shift( self , dx , dy ) :
254 # tile_x , tile_y = ( self.refpix_x - dx ) / self.tile_size , ( self.refpix_y - dy ) / self.tile_size
255 # self.reftile_x += tile_x
256 # self.reftile_y += tile_y
258 # self.refpix_x -= dx + self.tile_size * tile_x
259 # self.refpix_y -= dy + self.tile_size * tile_y
261 self.mapwidget._bg.vport[0] += dx
262 self.mapwidget._bg.vport[1] += dy
263 self.mapwidget.update_background()
266 self.mapwidget._bg.do_change_reftile( 0 , -1 )
267 self.mapwidget.update_background()
270 self.mapwidget._bg.do_change_reftile( 0 , +1 )
271 self.mapwidget.update_background()
274 self.mapwidget._bg.do_change_reftile( +1 , 0 )
275 self.mapwidget.update_background()
278 self.mapwidget._bg.do_change_reftile( -1 , 0 )
279 self.mapwidget.update_background()
282 class simpleMapWidget ( AbstractmapWidget , gtk.Image ) :
284 def __init__ ( self , config , map_size=(800,480) ) :
285 AbstractmapWidget.__init__( self , config , map_size )
287 gtk.Image.__init__(self)
289 self._bg = background_map( map_size , tile_loader( config ) )
291 self.update_background()
293 def update_background( self ) :
294 vport = self._bg.get_viewport()
295 p = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.win_x , self.win_y )
296 p.get_from_drawable( self._bg , self._bg.get_colormap() , vport[0] , vport[1] , 0 , 0 , self.win_x , self.win_y )
297 self.set_from_pixbuf(p)
299 def composeMap( self ) :
300 center_x , center_y = self.center()
302 # Ranges should be long enough as to fill the screen
303 # Maybe they should be decided based on self.win_x, self.win_y
304 for i in range(-3,4) :
305 for j in range(-3,4) :
306 file = self.tilename( i , j , self.conf.zoom )
308 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tile_size, self.tile_size )
309 pixbuf.fill( 0x00000000 )
312 pixbuf = gtk.gdk.pixbuf_new_from_file( file )
313 except gobject.GError , ex :
314 print "Corrupted file %s" % ( file )
316 #file = self.tilename( self.reftile_x + i , self.reftile_y + j , self.conf.zoom )
317 file = self.tilename( i , j , self.conf.zoom )
319 pixbuf = gtk.gdk.pixbuf_new_from_file( file )
321 print "Total failure for tile for %s,%s" % ( self.reftile_x + i , self.reftile_y + j )
322 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tile_size, self.tile_size )
324 dest_x = self.tile_size * i + center_x
325 dest_y = self.tile_size * j + center_y
328 size_x = self.tile_size
331 size_x = self.tile_size + dest_x
333 if dest_x + self.tile_size > self.win_x :
334 size_x = self.win_x - dest_x
337 size_y = self.tile_size
340 size_y = self.tile_size + dest_y
342 if dest_y + self.tile_size > self.win_y :
343 size_y = self.win_y - dest_y
345 if ( size_x > 0 and size_y > 0 ) and ( init_x < self.tile_size and init_y < self.tile_size ) :
346 pixbuf.copy_area( init_x, init_y, size_x, size_y, self.get_pixbuf(), dest_x , dest_y )
354 center_x , center_y = self.win_x / 2 , self.win_y / 2
356 # To get the central pixel in the window center, we must shift to the tile origin
357 center_x -= self.refpix_x
358 center_y -= self.refpix_y
360 return center_x , center_y
362 def plot( self , pixmap , coords , colorname , radius=3 ) :
364 center_x , center_y = self.center()
367 gc.foreground = pixmap.get_colormap().alloc_color( colorname )
369 dest_x , dest_y = self.gps2pix( coords , ( center_x , center_y ) )
370 pixmap.draw_rectangle(gc, True , dest_x , dest_y , radius , radius )
372 def draw_paths( self ) :
374 pixmap,mask = self.get_pixbuf().render_pixmap_and_mask()
376 filename = "data/wiscan_gui.info.old"
377 fd = open( filename )
378 for line in fd.readlines() :
379 values = line.split()
380 if values[1] == "FIX" :
381 self.plot( pixmap , ( float(values[5]) , float(values[6]) ) , "red" )
384 self.get_pixbuf().get_from_drawable( pixmap , pixmap.get_colormap() , 0, 0 , 0 , 0 , self.win_x, self.win_y )
386 def plot_APs( self ) :
388 pixmap,mask = self.get_pixbuf().render_pixmap_and_mask()
390 db = wifimap.db.database( os.path.join( self.conf.homedir , self.conf.dbname ) )
392 # NOTE : Intervals for query are just educated guesses to fit in window
393 lat , lon = self.conf.lat , self.conf.lon
394 for ap in db.db.execute( "SELECT * FROM ap where lat/n>%f and lat/n<%f and lon/n>%f and lon/n<%f" % ( lat - 0.003 , lat + 0.003 , lon - 0.007 , lon + 0.007 ) ) :
396 self.plot( pixmap , ( ap[4]/ap[3] , ap[5]/ap[3] ) , "blue" )
399 self.get_pixbuf().get_from_drawable( pixmap , pixmap.get_colormap() , 0, 0 , 0 , 0 , self.win_x, self.win_y )
401 class mapWidget ( gtk.EventBox , interactiveMapWidget ) :
403 def __init__ ( self , config ) :
404 gtk.EventBox.__init__( self )
405 self.mapwidget = simpleMapWidget( config )
406 self.add( self.mapwidget )
408 self.click_x , self.click_y = None , None
409 self.set_events( gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK )
410 self.connect_object('button_press_event', self.press_event, self.mapwidget)
411 self.connect_object('button_release_event', self.release_event, self)
413 def press_event ( self , widget , event ) :
414 self.click_x , self.click_y = event.x , event.y
416 def release_event ( self , widget, event ) :
417 delta_x = int( self.click_x - event.x )
418 delta_y = int( self.click_y - event.y )
419 widget.Shift(delta_x, delta_y)
420 self.click_x , self.click_y = None , None
422 if __name__ == "__main__" :
424 class StaticConfiguration :
426 def __init__ ( self , type=None ) :
429 self.homedir , self.dbname = None , None
430 self.mapsdir , self.mapclass = "/boot/home/localuser/Maps" , "OpenStreetMap I"
432 self.store_log , self.use_mapper , self.store_gps = None , None , None
434 self.lat , self.lon = 40.416 , -3.683
437 def on_key_press ( widget, event , map ) :
438 if event.keyval == gtk.keysyms.Up :
440 elif event.keyval == gtk.keysyms.Down :
442 elif event.keyval == gtk.keysyms.Right :
444 elif event.keyval == gtk.keysyms.Left :
447 print "UNKNOWN",event.keyval
449 config = StaticConfiguration()
450 mapwidget = mapWidget( config )
451 window = gtk.Window()
452 window.connect("destroy", gtk.main_quit )
453 window.connect("key-press-event", on_key_press, mapwidget )
454 window.add( mapwidget )