--- /dev/null
+#!/usr/bin/env python
+
+import gtk
+import gobject
+
+import urllib2
+import math
+
+import os
+
+class mapWidget(gtk.Image):
+
+ def __init__(self):
+
+ gtk.Image.__init__(self)
+
+ # Maximum width should be 800, but actually gets reduced
+ self.win_x , self.win_y = 800 , 480
+
+ p = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, self.win_x, self.win_y)
+ self.set_from_pixbuf(p)
+
+ zoom = 11
+ #lat = 40.4400226381
+ #lon = -3.6880185362
+ lat = 40.40491
+ lon = -3.6774
+ self.reftile_x , self.reftile_y = self.lon2tilex( lon , zoom ) , self.lat2tiley( lat , zoom )
+ # Half the size of a tile
+ self.refpix_x , self.refpix_y = 128 , 128
+ self.refpix_x , self.refpix_y = 0 , 0
+
+ self.composeMap()
+
+ def lon2tilex ( self , lon , zoom=11 ) :
+ return int( ( lon + 180 ) / 360 * 2 ** zoom )
+
+ def lat2tiley ( self , lat , zoom=11 ) :
+ lat = lat * math.pi / 180
+ return int( ( 1 - math.log( math.tan( lat ) + 1 / math.cos( lat ) ) / math.pi ) / 2 * 2 ** zoom )
+
+ def composeMap( self ) :
+ center_x , center_y = self.win_x / 2 , self.win_y / 2
+
+ # To get the central pixel in the window center, we must shift to the tile origin
+ center_x -= self.refpix_x
+ center_y -= self.refpix_y
+
+ # Ranges should be long enough as to fill the screen
+ # Maybe they should be decided based on self.win_x, self.win_y
+ for i in range(-3,4) :
+ for j in range(-3,4) :
+ file = self.tilename( i , j )
+ if file is None :
+ pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 256, 256 )
+ pixbuf.fill( 0x00000000 )
+ else :
+ try :
+ pixbuf = gtk.gdk.pixbuf_new_from_file( file )
+ except gobject.GError , ex :
+ print "Corrupted file %s" % ( file )
+ os.unlink( file )
+ #file = self.tilename( self.reftile_x + i , self.reftile_y + j )
+ file = self.tilename( i , j )
+ try :
+ pixbuf = gtk.gdk.pixbuf_new_from_file( file )
+ except :
+ print "Total failure for tile for %s,%s" % ( self.reftile_x + i , self.reftile_y + j )
+ pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 256, 256 )
+
+ dest_x = 256 * i + center_x
+ dest_y = 256 * j + center_y
+
+ init_x = 0
+ size_x = 256
+ if dest_x < 0 :
+ init_x = abs(dest_x)
+ size_x = 256 + dest_x
+ dest_x = 0
+ if dest_x + 256 > self.win_x :
+ size_x = self.win_x - dest_x
+
+ init_y = 0
+ size_y = 256
+ if dest_y < 0 :
+ init_y = abs(dest_y)
+ size_y = 256 + dest_y
+ dest_y = 0
+ if dest_y + 256 > self.win_y :
+ size_y = self.win_y - dest_y
+
+ if ( size_x > 0 and size_y > 0 ) and ( init_x < 256 and init_y < 256 ) :
+ pixbuf.copy_area( init_x, init_y, size_x, size_y, self.get_pixbuf(), dest_x , dest_y )
+ del(pixbuf)
+
+ def tilename ( self , x , y , zoom=11 ) :
+ file = self.tile2file( self.reftile_x + x , self.reftile_y + y , zoom )
+ try :
+ os.stat(file)
+ except :
+ # if mapDownload :
+ if False :
+ try :
+ # useful members : response.code, response.headers
+ response = urllib2.urlopen( "http://tile.openstreetmap.org/%s/%s/%s.png" % ( zoom , x , y ) )
+ if response.geturl() == "http://tile.openstreetmap.org/11/0/0.png" :
+ return None
+ fd = open( file , 'w' )
+ fd.write( response.read() )
+ fd.close()
+ except :
+ return None
+ else :
+ return None
+ return file
+
+ def tile2file( self , tilex , tiley , zoom=11 ) :
+ basedir = "/home/user/MyDocs/.maps/OpenStreetMap I"
+ rootdir = "%s/%s" % ( basedir , zoom )
+ if not os.path.isdir( rootdir ) :
+ os.mkdir(rootdir)
+ rootsubdir = "%s/%s" % ( rootdir , tilex )
+ if not os.path.isdir( rootsubdir ) :
+ os.mkdir(rootsubdir)
+ return "%s/%s.png" % ( rootsubdir , tiley )
+
+ def Shift( self , dx , dy ) :
+ self.hide()
+
+ tile_x , tile_y = ( self.refpix_x - dx ) / 256 , ( self.refpix_y - dy ) / 256
+ self.reftile_x += tile_x
+ self.reftile_y += tile_y
+
+ self.refpix_x -= dx + 256 * tile_x
+ self.refpix_y -= dy + 256 * tile_y
+
+ self.composeMap()
+ self.show()
+
+ def Up( self ) :
+ self.hide()
+ self.reftile_y -= 1
+ self.composeMap()
+ self.show()
+
+ def Down( self ) :
+ self.hide()
+ self.reftile_y += 1
+ self.composeMap()
+ self.show()
+
+ def Right( self ) :
+ self.hide()
+ self.reftile_x += 1
+ self.composeMap()
+ self.show()
+
+ def Left( self ) :
+ self.hide()
+ self.reftile_x -= 1
+ self.composeMap()
+ self.show()
+
+class MapWindow:
+
+ def delete_event(self, widget, event, data=None):
+ # If you return FALSE in the "delete_event" signal handler,
+ # GTK will emit the "destroy" signal. Returning TRUE means
+ # you don't want the window to be destroyed.
+ # This is useful for popping up 'are you sure you want to quit?'
+ # type dialogs.
+ print "delete event occurred"
+
+ # Change FALSE to TRUE and the main window will not be destroyed
+ # with a "delete_event".
+ return False
+
+ def destroy(self, widget, data=None):
+ print "destroy signal occurred"
+ gtk.main_quit()
+
+ def press_event ( self, widget, event, *args ) :
+ # FIXME : Set only if far enough from borders
+ border_x = 40
+ border_y = 30
+ print "press ",event.get_coords(),event.get_root_coords()
+ if event.x > border_x and event.y > border_y and event.x < ( self.size_x - border_x ) and event.y < ( self.size_y - border_y ) :
+ self.click_x = event.x
+ self.click_y = event.y
+
+ def release_event ( self, widget, event, *args ) :
+ min_shift = 50
+ print "unpress",event.get_coords(),event.get_root_coords()
+ if self.click_x is not None and self.click_y is not None :
+ delta_x = int( event.x - self.click_x )
+ delta_y = int( event.y - self.click_y )
+ shift = math.sqrt( delta_x * delta_x + delta_y * delta_y )
+ if shift > min_shift :
+ self.map.Shift(delta_x, delta_y)
+ # if delta_x > 100 :
+ # self.map.Left()
+ # elif delta_x < -100 :
+ # self.map.Right()
+ # elif delta_y > 100 :
+ # self.map.Up()
+ # elif delta_y < -100 :
+ # self.map.Down()
+ self.click_x , self.click_y = None , None
+
+ def screen_event ( self, widget, event, *args ) :
+ print "REDIOS",event
+ print " ",widget
+ print " ",args
+
+
+ def on_button_press ( self, widget, event, *args ) :
+ print "HOLA",event
+
+ def on_key_press ( self, widget, event, *args ) :
+ if event.keyval == gtk.keysyms.Up :
+ self.map.Up()
+ elif event.keyval == gtk.keysyms.Down :
+ self.map.Down()
+ elif event.keyval == gtk.keysyms.Right :
+ self.map.Right()
+ elif event.keyval == gtk.keysyms.Left :
+ self.map.Left()
+ else :
+ print "UNKNOWN",event.keyval
+
+ def __init__(self):
+
+ self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+
+ self.window.connect("delete_event", self.delete_event)
+ self.window.connect("destroy", self.destroy)
+
+ self.window.set_border_width(10)
+
+ self.window.connect("key-press-event", self.on_key_press)
+
+ # To get explicit GDK_BUTTON_PRESS instead of paired GDK_LEAVE_NOTIFY & GDK_ENTER_NOTIFY
+# self.window.add_events(gtk.gdk.BUTTON_MOTION_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.POINTER_MOTION_MASK)
+ self.window.set_events( gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK )
+ #
+# self.window.connect('motion_notify_event', self.screen_event)
+ self.window.connect('button_press_event', self.press_event)
+ self.window.connect('button_release_event', self.release_event)
+ #
+ self.map = mapWidget()
+ self.window.add( self.map )
+
+ # and the window
+ self.window.show_all()
+
+ self.size_x , self.size_y = 800 , 480
+ self.click_x , self.click_y = None , None
+
+ def main(self):
+ gtk.main()
+
+if __name__ == "__main__":
+ map = MapWindow()
+ map.main()
+
projects / wifihood / commitdiff