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_viewport ( self , dx , dy ) :
61 dx , dy = self.tileloader.do_change_refpix( dx , dy )
63 self.do_change_reftile( dx , dy )
65 def do_change_reftile( self , dx , dy ) :
66 self.tileloader.do_change_reftile( dx , dy )
68 pixsize = self.get_size()
69 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, pixsize[0] , pixsize[1] )
70 pixbuf.get_from_drawable( self , self.get_colormap() , 0 , 0 , 0 , 0 , pixsize[0] , pixsize[1] )
72 # width , source , destination
73 x_vals = [ pixsize[0] , 0 , 0 ]
74 y_vals = [ pixsize[1] , 0 , 0 ]
77 x_vals[0] -= abs(dx) * self.tileloader.tilesize
78 x_vals[cmp(dx,0)] = abs(dx) * self.tileloader.tilesize
80 for x in range(1,1+dx) :
81 for y in range(self.size[1]) : self.fill[ self.index(self.size[0]-x,y) ] = False
83 for x in range(1,1-dx) :
84 for y in range(self.size[1]) : self.fill[ self.index(x,y) ] = False
86 y_vals[0] -= abs(dy) * self.tileloader.tilesize
87 y_vals[cmp(dy,0)] = abs(dy) * self.tileloader.tilesize
89 for y in range(1,1+dy) :
90 for x in range(self.size[0]) : self.fill[ self.index(x,self.size[1]-y) ] = False
92 for y in range(1,1-dy) :
93 for x in range(self.size[0]) : self.fill[ self.index(x,y) ] = False
95 self.draw_pixbuf( None , pixbuf , x_vals[1] , y_vals[1] , x_vals[-1] , y_vals[-1] , x_vals[0] , y_vals[0] )
101 def __init__ ( self , conf ) :
103 self.rootdir = "%s/%s/%s" % ( conf.mapsdir , conf.mapclass , conf.zoom )
104 self.__reftile , self.__refpix = self.get_reference( conf )
106 def do_change_refpix ( self , dx , dy ) :
107 self.__refpix[0] += dx
108 self.__refpix[1] += dy
109 tileshift = self.__refpix[0] / self.tilesize , self.__refpix[1] / self.tilesize
110 self.__refpix[0] %= self.tilesize
111 self.__refpix[1] %= self.tilesize
114 def do_change_reftile( self , dx , dy ) :
115 self.__reftile[0] += dx
116 self.__reftile[1] += dy
118 def get_refpix ( self ) :
121 def get_reference ( self , conf ) :
122 tilex = self.lon2tilex( conf.lon , conf.zoom )
123 tiley = self.lat2tiley( conf.lat , conf.zoom )
124 tile = tilex[1] , tiley[1]
125 pix = tilex[0] , tiley[0]
126 return map( int , tile ) , map( lambda x : int( self.tilesize * x ) , pix )
128 def lon2tilex ( self , lon , zoom ) :
129 return math.modf( ( lon + 180 ) / 360 * 2 ** zoom )
131 def lat2tiley ( self , lat , zoom ) :
132 lat = lat * math.pi / 180
133 return math.modf( ( 1 - math.log( math.tan( lat ) + 1 / math.cos( lat ) ) / math.pi ) / 2 * 2 ** zoom )
135 def get_tile ( self , tile ) :
136 file = self.tilepath( self.__reftile[0] + tile[0] , self.__reftile[1] + tile[1] )
139 return gtk.gdk.pixbuf_new_from_file( file )
142 # useful members : response.code, response.headers
143 response = urllib2.urlopen( "http://tile.openstreetmap.org/%s/%s/%s.png" % ( zoom , x , y ) )
144 if response.geturl() != "http://tile.openstreetmap.org/11/0/0.png" :
145 fd = open( file , 'w' )
146 fd.write( response.read() )
148 # FIXME : can this actually produce a gobject.GError exception ?
149 return gtk.gdk.pixbuf_new_from_file( file )
155 def tilepath( self , tilex , tiley ) :
156 return "%s/%s/%s.png" % ( self.rootdir , tilex , tiley )
158 def emptytile( self ) :
159 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tilesize, self.tilesize )
160 pixbuf.fill( 0x00000000 )
164 class AbstractmapWidget :
166 def __init__ ( self , config , map_size ) :
170 # Maximum width should be 800, but actually gets reduced
171 self.win_x , self.win_y = map_size
174 self.reftile_x , self.refpix_x = self.lon2tilex( self.conf.lon , self.conf.zoom )
175 self.reftile_y , self.refpix_y = self.lat2tiley( self.conf.lat , self.conf.zoom )
177 def recenter ( self , latlon ) :
179 center = self.gps2pix( latlon , self.center() )
180 pixel = self.gps2pix( (self.conf.lat,self.conf.lon) , self.center() )
182 distance = math.sqrt( (pixel[0]-center[0])**2 + (pixel[1]-center[1])**2 )
184 # FIXME : instead of hardcoded, should depend on the actual display size
186 self.conf.set_latlon( latlon )
188 self.reftile_x , self.refpix_x = self.lon2tilex( self.conf.lon , self.conf.zoom )
189 self.reftile_y , self.refpix_y = self.lat2tiley( self.conf.lat , self.conf.zoom )
193 def tilex2lon ( self , ( tilex , pixx ) , zoom ) :
196 return ( tilex + pixx/self.tile_size ) / 2.0 ** zoom * 360.0 - 180.0
198 def tiley2lat ( self , ( tiley , pixy ) , zoom ) :
201 tiley = math.pi * ( 1 - 2 * ( tiley + pixy/self.tile_size ) / 2.0 ** zoom )
202 return math.degrees( math.atan( math.sinh( tiley ) ) )
204 def SetZoom( self , zoom ) :
206 lat = self.tiley2lat( ( self.reftile_y , self.refpix_y ) , self.conf.zoom )
207 lon = self.tilex2lon( ( self.reftile_x , self.refpix_x ) , self.conf.zoom )
208 self.reftile_x , self.refpix_x = self.lon2tilex( lon , zoom )
209 self.reftile_y , self.refpix_y = self.lat2tiley( lat , zoom )
210 self.conf.set_zoom( zoom )
214 def lon2tilex ( self , lon , zoom ) :
215 number = math.modf( ( lon + 180 ) / 360 * 2 ** zoom )
216 return int( number[1] ) , int( self.tile_size * number[0] )
218 def lat2tiley ( self , lat , zoom ) :
219 lat = lat * math.pi / 180
220 number = math.modf( ( 1 - math.log( math.tan( lat ) + 1 / math.cos( lat ) ) / math.pi ) / 2 * 2 ** zoom )
221 return int( number[1] ) , int( self.tile_size * number[0] )
223 def gps2pix ( self , ( lat , lon ) , ( center_x , center_y ) ) :
225 x_pos = self.lon2tilex( lon , self.conf.zoom )
226 y_pos = self.lat2tiley( lat , self.conf.zoom )
228 dest_x = self.tile_size * ( x_pos[0] - self.reftile_x ) + center_x + x_pos[1]
229 dest_y = self.tile_size * ( y_pos[0] - self.reftile_y ) + center_y + y_pos[1]
231 return dest_x , dest_y
233 def tilename ( self , x , y , zoom ) :
234 file = self.tile2file( self.reftile_x + x , self.reftile_y + y , zoom )
241 # useful members : response.code, response.headers
242 response = urllib2.urlopen( "http://tile.openstreetmap.org/%s/%s/%s.png" % ( zoom , x , y ) )
243 if response.geturl() == "http://tile.openstreetmap.org/11/0/0.png" :
245 fd = open( file , 'w' )
246 fd.write( response.read() )
254 def tile2file( self , tilex , tiley , zoom ) :
255 rootdir = "%s/%s/%s" % ( self.conf.mapsdir , self.conf.mapclass , zoom )
256 if not os.path.isdir( rootdir ) :
258 rootsubdir = "%s/%s" % ( rootdir , tilex )
259 if not os.path.isdir( rootsubdir ) :
261 return "%s/%s.png" % ( rootsubdir , tiley )
263 class interactiveMapWidget :
265 def Shift( self , dx , dy ) :
266 self.mapwidget._bg.do_change_viewport( dx , dy )
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( 0 , +1 )
275 self.mapwidget.update_background()
278 self.mapwidget._bg.do_change_reftile( +1 , 0 )
279 self.mapwidget.update_background()
282 self.mapwidget._bg.do_change_reftile( -1 , 0 )
283 self.mapwidget.update_background()
286 class simpleMapWidget ( AbstractmapWidget , gtk.Image ) :
288 def __init__ ( self , config , map_size=(800,480) ) :
289 AbstractmapWidget.__init__( self , config , map_size )
291 gtk.Image.__init__(self)
293 self._bg = background_map( map_size , tile_loader( config ) )
295 self.update_background()
297 def update_background( self ) :
298 vport = self._bg.get_viewport()
299 p = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.win_x , self.win_y )
300 p.get_from_drawable( self._bg , self._bg.get_colormap() , vport[0] , vport[1] , 0 , 0 , self.win_x , self.win_y )
301 self.set_from_pixbuf(p)
303 def composeMap( self ) :
304 center_x , center_y = self.center()
306 # Ranges should be long enough as to fill the screen
307 # Maybe they should be decided based on self.win_x, self.win_y
308 for i in range(-3,4) :
309 for j in range(-3,4) :
310 file = self.tilename( i , j , self.conf.zoom )
312 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tile_size, self.tile_size )
313 pixbuf.fill( 0x00000000 )
316 pixbuf = gtk.gdk.pixbuf_new_from_file( file )
317 except gobject.GError , ex :
318 print "Corrupted file %s" % ( file )
320 #file = self.tilename( self.reftile_x + i , self.reftile_y + j , self.conf.zoom )
321 file = self.tilename( i , j , self.conf.zoom )
323 pixbuf = gtk.gdk.pixbuf_new_from_file( file )
325 print "Total failure for tile for %s,%s" % ( self.reftile_x + i , self.reftile_y + j )
326 pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, self.tile_size, self.tile_size )
328 dest_x = self.tile_size * i + center_x
329 dest_y = self.tile_size * j + center_y
332 size_x = self.tile_size
335 size_x = self.tile_size + dest_x
337 if dest_x + self.tile_size > self.win_x :
338 size_x = self.win_x - dest_x
341 size_y = self.tile_size
344 size_y = self.tile_size + dest_y
346 if dest_y + self.tile_size > self.win_y :
347 size_y = self.win_y - dest_y
349 if ( size_x > 0 and size_y > 0 ) and ( init_x < self.tile_size and init_y < self.tile_size ) :
350 pixbuf.copy_area( init_x, init_y, size_x, size_y, self.get_pixbuf(), dest_x , dest_y )
358 center_x , center_y = self.win_x / 2 , self.win_y / 2
360 # To get the central pixel in the window center, we must shift to the tile origin
361 center_x -= self.refpix_x
362 center_y -= self.refpix_y
364 return center_x , center_y
366 def plot( self , pixmap , coords , colorname , radius=3 ) :
368 center_x , center_y = self.center()
371 gc.foreground = pixmap.get_colormap().alloc_color( colorname )
373 dest_x , dest_y = self.gps2pix( coords , ( center_x , center_y ) )
374 pixmap.draw_rectangle(gc, True , dest_x , dest_y , radius , radius )
376 def draw_paths( self ) :
378 pixmap,mask = self.get_pixbuf().render_pixmap_and_mask()
380 filename = "data/wiscan_gui.info.old"
381 fd = open( filename )
382 for line in fd.readlines() :
383 values = line.split()
384 if values[1] == "FIX" :
385 self.plot( pixmap , ( float(values[5]) , float(values[6]) ) , "red" )
388 self.get_pixbuf().get_from_drawable( pixmap , pixmap.get_colormap() , 0, 0 , 0 , 0 , self.win_x, self.win_y )
390 def plot_APs( self ) :
392 pixmap,mask = self.get_pixbuf().render_pixmap_and_mask()
394 db = wifimap.db.database( os.path.join( self.conf.homedir , self.conf.dbname ) )
396 # NOTE : Intervals for query are just educated guesses to fit in window
397 lat , lon = self.conf.lat , self.conf.lon
398 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 ) ) :
400 self.plot( pixmap , ( ap[4]/ap[3] , ap[5]/ap[3] ) , "blue" )
403 self.get_pixbuf().get_from_drawable( pixmap , pixmap.get_colormap() , 0, 0 , 0 , 0 , self.win_x, self.win_y )
405 class mapWidget ( gtk.EventBox , interactiveMapWidget ) :
407 def __init__ ( self , config ) :
408 gtk.EventBox.__init__( self )
409 self.mapwidget = simpleMapWidget( config )
410 self.add( self.mapwidget )
412 self.click_x , self.click_y = None , None
413 self.set_events( gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK )
414 self.connect_object('button_press_event', self.press_event, self.mapwidget)
415 self.connect_object('button_release_event', self.release_event, self)
417 def press_event ( self , widget , event ) :
418 self.click_x , self.click_y = event.x , event.y
420 def release_event ( self , widget, event ) :
421 # NOTE : we use origin-current for deltas because the map center moves in the opposite direction
422 delta_x = int( self.click_x - event.x )
423 delta_y = int( self.click_y - event.y )
424 widget.Shift(delta_x, delta_y)
425 self.click_x , self.click_y = None , None
427 if __name__ == "__main__" :
429 class StaticConfiguration :
431 def __init__ ( self , type=None ) :
434 self.homedir , self.dbname = None , None
435 self.mapsdir , self.mapclass = "/boot/home/localuser/Maps" , "OpenStreetMap I"
437 self.store_log , self.use_mapper , self.store_gps = None , None , None
439 self.lat , self.lon = 40.416 , -3.683
442 def on_key_press ( widget, event , map ) :
443 if event.keyval == gtk.keysyms.Up :
445 elif event.keyval == gtk.keysyms.Down :
447 elif event.keyval == gtk.keysyms.Right :
449 elif event.keyval == gtk.keysyms.Left :
452 print "UNKNOWN",event.keyval
454 config = StaticConfiguration()
455 mapwidget = mapWidget( config )
456 window = gtk.Window()
457 window.connect("destroy", gtk.main_quit )
458 window.connect("key-press-event", on_key_press, mapwidget )
459 window.add( mapwidget )