neo1973-germany/pylgrim/pylgrim.py
josch 5cf999b48c added menu prototypes and fixed small bugs
git-svn-id: http://www.neo1973-germany.de/svn@28 46df4e5c-bc4e-4628-a0fc-830ba316316d
2008-03-12 07:57:10 +00:00

516 lines
22 KiB
Python
Executable file

#!/usr/bin/python
#coding=utf8
'''
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 3 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, see <http://www.gnu.org/licenses/>.
'''
#TODO: restructure tile loading
#TODO: add wikipedia geotagging
#TODO: add dynamic preloading
#TODO: add gps connection
import os
import sys
from e_dbus import DBusEcoreMainLoop
import evas
import evas.decorators
import edje
import edje.decorators
import ecore
import ecore.evas
from dbus import SystemBus, Interface
import time
import math
import urllib
class Tile(evas.Image):
def __init__(self, canvas):
evas.Image.__init__(self,canvas)
self.pass_events = True
self.show()
#we need this to store the original position while the zoom animations
self.position = (0,0)
def set_position(self, x, y):
self.position = (x,y)
self.move(x,y)
class Mark(evas.Image):
def __init__(self, canvas):
evas.Image.__init__(self,canvas)
self.pass_events = True
self.show()
#we need this to store the original position while the zoom animations
self.position = (0,0)
def set_position(self, x, y):
self.position = (x,y)
self.move(x,y)
class Pylgrim(edje.Edje):
def __init__(self, evas_canvas, filename, initial_lat, initial_lon, initial_zoom=10, offline=False, use_overlay=True):
self.evas_canvas = evas_canvas
self.offline = offline
self.use_overlay = use_overlay
edje.Edje.__init__(self, self.evas_canvas.evas_obj.evas, file=filename, group="pylgrim")
self.size = self.evas_canvas.evas_obj.evas.size
self.on_key_down_add(self.on_key_down)
self.on_key_up_add(self.on_key_up)
self.focus = True
self.evas_canvas.evas_obj.data["pylgrim"] = self
self.show()
#mouse position
self.x_pos, self.y_pos = (0,0)
#global variable for zooming
self.zoom_step = 0.0
#global list for tiles to download
self.tiles_to_download = []
self.tiles_to_download_total = 0
self.tiles_to_preload = []
#initial lat,lon,zoom
self.lat = initial_lat
self.lon = initial_lon
self.x = 0
self.y = 0
self.z = initial_zoom
self.offset_x = 0
self.offset_y = 0
self.icons = []
self.overlay = edje.Edje(self.evas_canvas.evas_obj.evas, file=filename, group='overlay')
self.overlay.size = self.evas_canvas.evas_obj.evas.size
self.overlay.layer = 2
self.evas_canvas.evas_obj.data["overlay"] = self.overlay
self.overlay.show()
if self.use_overlay:
self.progress_bg = evas.Rectangle(self.evas_canvas.evas_obj.evas)
self.progress_bg.geometry = 0,0,0,0
self.progress_bg.color = 255, 255, 255, 255
self.progress_bg.layer = 3
self.progress_bg.show()
self.progress = evas.Rectangle(self.evas_canvas.evas_obj.evas)
self.progress.geometry = 0,0,0,0
self.progress.color = 255, 0, 0, 255
self.progress.layer = 4
self.progress.show()
'''
self.menu = edje.Edje(self.evas_canvas.evas_obj.evas, file=filename, group='menu')
self.menu.size = self.evas_canvas.evas_obj.evas.size
self.menu.layer = 4
self.evas_canvas.evas_obj.data["menu"] = self.menu
self.menu.show()
'''
#calculate size of tile raster
self.border_x = int(math.ceil(self.size[0]/256.0))
self.border_y = int(math.ceil(self.size[1]/256.0))
self.mouse_down = False
self.animate = False
self.set_current_tile(initial_lat, initial_lon, initial_zoom)
'''
self.marker = Mark(self.evas_canvas.evas_obj.evas)
self.marker.file_set("blue-dot.png")
self.marker.lat = 49.073866
self.marker.lon = 8.184814
self.marker.size_set(32,32)
self.marker.fill_set(0,0,32,32)
self.marker.x = (self.marker.lon+180)/360 * 2**self.z
self.marker.y = (1-math.log(math.tan(self.marker.lat*math.pi/180) + 1/math.cos(self.marker.lat*math.pi/180))/math.pi)/2 * 2**self.z
self.marker.offset_x, self.marker.offset_y = int((self.marker.x-int(self.marker.x))*256),int((self.marker.y-int(self.marker.y))*256)
self.marker.set_position(self.size[0]/2-16+256*(int(self.marker.x)-int(self.x))+self.marker.offset_x-self.offset_x, self.size[1]/2-32+256*(int(self.marker.y)-int(self.y))+self.marker.offset_y-self.offset_y)
self.marker.layer = 1
self.marker.show()
'''
ecore.timer_add(3, self.init_dbus)
def init_dbus(self):
print 'LocationFeed init_dbus'
try:
gps_obj = SystemBus(mainloop=DBusEcoreMainLoop()).get_object('org.mobile.gps', '/org/mobile/gps/RemoteObject')
gps_name = 'org.mobile.gps.RemoteInterface'
gps_obj.connect_to_signal("position", self.position, dbus_interface=gps_name)
self.gps_interface = Interface(gps_obj, gps_name)
#self.gps_interface.get_position()
return False
except Exception, e:
print 'LocationFeed', e
return True
def position(self, content):
latitude = float(content.get('latitude', self.lat))
longitude = float(content.get('longitude', self.lon))
print 'position', latitude, longitude
if not self.animate:
self.set_current_tile(latitude, longitude, self.z)
def on_key_down(self, obj, event):
if event.keyname in ("F6", "f"):
self.evas_canvas.evas_obj.fullscreen = not self.evas_canvas.evas_obj.fullscreen
elif event.keyname in ("Escape", "q"):
ecore.main_loop_quit()
elif event.keyname in ("F7","plus") and not self.animate:
ecore.timer_add(0.05, self.animate_zoom_in)
elif event.keyname in ("F8","minus") and not self.animate:
ecore.timer_add(0.05, self.animate_zoom_out)
elif event.keyname in ("Up",) and not self.animate:
delta_y = -10
for icon in self.icons:
icon.set_position(icon.pos[0],icon.pos[1]-delta_y)
self.current_pos = (self.current_pos[0],self.current_pos[1]-delta_y)
elif event.keyname in ("Down",) and not self.animate:
delta_y = 10
for icon in self.icons:
icon.set_position(icon.pos[0],icon.pos[1]-delta_y)
self.current_pos = (self.current_pos[0],self.current_pos[1]-delta_y)
elif event.keyname in ("Left",) and not self.animate:
delta_x = -10
for icon in self.icons:
icon.set_position(icon.pos[0]-delta_x,icon.pos[1])
self.current_pos = (self.current_pos[0]-delta_x,self.current_pos[1])
elif event.keyname in ("Right",) and not self.animate:
delta_x = 10
for icon in self.icons:
icon.set_position(icon.pos[0]-delta_x,icon.pos[1])
self.current_pos = (self.current_pos[0]-delta_x,self.current_pos[1])
else:
print "key not recognized:",event.keyname
def on_key_up(self, obj, event):
if event.keyname in ("Up","Down", "Left", "Right") and not self.animate:
if abs(self.current_pos[0]) > self.size[0]/2 or abs(self.current_pos[1]) > self.size[1]/2:
self.x = int(self.x) + (self.offset_x-self.current_pos[0])/256.0
self.y = int(self.y) + (self.offset_y-self.current_pos[1])/256.0
self.offset_x, self.offset_y = int((self.x-int(self.x))*256),int((self.y-int(self.y))*256)
self.init_redraw()
self.update_coordinates()
def download(self, x,y,z):
filename = "%d/%d/%d.png"%(z,x,y)
print 'download', filename
try:
dirname = "%d/%d"%(z,x)
if not os.path.exists(dirname):
os.makedirs(dirname)
localFile = open(filename, 'w')
webFile = urllib.urlopen("http://a.tile.openstreetmap.org/%d/%d/%d.png"%(z,x,y))
localFile.write(webFile.read())
webFile.close()
localFile.close()
except Exception, e:
print 'download error', e
if os.path.exists(filename):
os.unlink(filename)
#jump to coordinates
def set_current_tile(self, lat, lon, z):
#update shown coordinates everytime they change
self.overlay.part_text_set("label", "lat:%f lon:%f zoom:%d"%(lat,lon,z))
x = (lon+180)/360 * 2**z
y = (1-math.log(math.tan(lat*math.pi/180) + 1/math.cos(lat*math.pi/180))/math.pi)/2 * 2**z
offset_x, offset_y = int((x-int(x))*256),int((y-int(y))*256)
#only redraw if x, y, z, offset_x or offset_y differ from before
if int(x) != int(self.x) \
or int(y) != int(self.y) \
or z != self.z \
or offset_x != self.offset_x \
or offset_y != self.offset_y:
self.z = z
self.x = x
self.y = y
self.offset_x, self.offset_y = offset_x, offset_y
self.init_redraw()
def init_redraw(self):
print "redraw"
self.animate = True
#reload icons list if its length differs from before eg. when size changes
if len(self.icons) != (2*self.border_x+1)*(2*self.border_y+1):
print "x:", self.border_x, "y:", self.border_y
#clean up
for icon in self.icons:
icon.delete()
self.icons = []
#fill
for i in xrange((2*self.border_x+1)*(2*self.border_y+1)):
self.icons.append(Tile(self.evas_canvas.evas_obj.evas))
if not self.offline:
#add all tiles that are not yet downloaded to a list
for i in xrange(2*self.border_x+1):
for j in xrange(2*self.border_y+1):
if not os.path.exists("%d/%d/%d.png"%(self.z,self.x+i-self.border_x,self.y+j-self.border_y))\
and not (self.z,self.x+i-self.border_x,self.y+j-self.border_y) in self.tiles_to_download:
self.tiles_to_download.append((self.z,self.x+i-self.border_x,self.y+j-self.border_y))
self.tiles_to_download_total = len(self.tiles_to_download)
'''
#add additional tiles around the raster to a preload list
for i in xrange(2*self.border_x+3):
if i == 0 or i == 2*self.border_x+2:
#if first or last row, download full row
for j in xrange(2*self.border_y+3):
if not os.path.exists("%d/%d/%d.png"%(self.z,self.x+i-self.border_x-1,self.y+j-self.border_y-1)):
self.tiles_to_preload.append((self.z,self.x+i-self.border_x-1,self.y+j-self.border_y-1))
#lots TODO here
#let preload more than one tile - maybe a preload_border_x/y variable
#manage simultaneos proeloads
#manage not preloading duplicates
else
#else download first and last tile
'''
#if there are tiles to download, display progress bar
if self.use_overlay and self.tiles_to_download_total > 0:
self.progress_bg.geometry = 39, self.size[1]/2-1, self.size[0]-78,22
self.progress.geometry = 40, self.size[1]/2, 1,20
self.overlay.part_text_set("progress", "downloaded 0 of %d tiles"%self.tiles_to_download_total)
ecore.timer_add(0.0, self.download_and_paint_current_tiles)
def download_and_paint_current_tiles(self):
if len(self.tiles_to_download) > 0:
z,x,y = self.tiles_to_download.pop()
if self.use_overlay:
self.progress.geometry = 40, self.size[1]/2, (self.size[0]-80)*(self.tiles_to_download_total-len(self.tiles_to_download))/self.tiles_to_download_total,20
self.overlay.part_text_set("progress", "downloaded %d of %d tiles"%(self.tiles_to_download_total-len(self.tiles_to_download),self.tiles_to_download_total))
self.download(x,y,z)
return True
#we get here if all tiles are downloaded
for i in xrange(2*self.border_x+1):
for j in xrange(2*self.border_y+1):
#if some errors occur replace with placeholder
filename = "%d/%d/%d.png"%(self.z,self.x+i-self.border_x,self.y+j-self.border_y)
try:
self.icons[(2*self.border_y+1)*i+j].file_set(filename)
except Exception, e:
print e
if os.path.exists(filename):
os.unlink(filename)
self.icons[(2*self.border_y+1)*i+j].file_set("404.png")
self.icons[(2*self.border_y+1)*i+j].set_position((i-self.border_x)*256+self.size[0]/2-self.offset_x,(j-self.border_y)*256+self.size[1]/2-self.offset_y)
self.icons[(2*self.border_y+1)*i+j].size = 256,256
self.icons[(2*self.border_y+1)*i+j].fill = 0, 0, 256, 256
self.current_pos = (0,0)
if self.use_overlay:
self.overlay.part_text_set("progress", "")
self.progress_bg.geometry = 0,0,0,0
self.progress.geometry = 0,0,0,0
self.animate = False
return False
def update_coordinates(self):
x = int(self.x) + (self.offset_x-self.current_pos[0])/256.0
y = int(self.y) + (self.offset_y-self.current_pos[1])/256.0
self.lon = (x*360)/2**self.z-180
n = math.pi*(1-2*y/2**self.z)
self.lat = 180/math.pi*math.atan(0.5*(math.exp(n)-math.exp(-n)))
self.overlay.part_text_set("label", "lat:%f lon:%f zoom:%d"%(self.lat,self.lon,self.z))
def zoom_in(self, z):
for icon in self.icons:
x = (1+z)*(icon.position[0]-self.size[0]/2)+self.size[0]/2
y = (1+z)*(icon.position[1]-self.size[1]/2)+self.size[1]/2
icon.geometry = int(x),int(y),256+int(256*z),256+int(256*z)
icon.fill = 0, 0, 256+int(256*z),256+int(256*z)
def zoom_out(self, z):
for icon in self.icons:
x = (1-z*0.5)*(icon.position[0]-self.size[0]/2)+self.size[0]/2
y = (1-z*0.5)*(icon.position[1]-self.size[1]/2)+self.size[1]/2
icon.geometry = int(x),int(y),256-int(256*z*0.5),256-int(256*z*0.5)
icon.fill = 0, 0, 256-int(256*z*0.5),256-int(256*z*0.5)
def animate_zoom_in(self):
if self.z < 18:
self.animate = True
if self.zoom_step < 1.0:
self.zoom_in(self.zoom_step)
self.zoom_step+=0.125
return True
self.zoom_step = 0.0
self.set_current_tile(self.lat, self.lon, self.z+1)
else:
self.animate = False
return False
def animate_zoom_out(self):
if self.z > 5:
self.animate = True
if self.zoom_step < 1.0:
self.zoom_out(self.zoom_step)
self.zoom_step+=0.125
return True
self.zoom_step = 0.0
self.set_current_tile(self.lat, self.lon, self.z-1)
else:
self.animate = False
return False
@edje.decorators.signal_callback("mouse,down,1", "*")
def on_mouse_down(self, emission, source):
if not self.animate:
if source in "plus":
ecore.timer_add(0.05, self.animate_zoom_in)
elif source in "minus":
ecore.timer_add(0.05, self.animate_zoom_out)
else:
self.x_pos, self.y_pos = self.evas_canvas.evas_obj.evas.pointer_canvas_xy
self.mouse_down = True
@edje.decorators.signal_callback("mouse,up,1", "*")
def on_mouse_up(self, emission, source):
self.mouse_down = False
if not self.animate:
#redraw if moved further than one tile in each direction 'cause the preoload will only download one tile further than requested
if abs(self.current_pos[0]) > 256 or abs(self.current_pos[1]) > 256:
self.x = int(self.x) + (self.offset_x-self.current_pos[0])/256.0
self.y = int(self.y) + (self.offset_y-self.current_pos[1])/256.0
self.offset_x, self.offset_y = int((self.x-int(self.x))*256),int((self.y-int(self.y))*256)
self.init_redraw()
self.update_coordinates()
if abs(self.current_pos[0]) > 0 or abs(self.current_pos[1]) > 0:
#on mouse up + move: update current coordinates
self.update_coordinates()
@edje.decorators.signal_callback("mouse,move", "*")
def on_mouse_move(self, emission, source):
if self.mouse_down and not self.animate:
x_pos, y_pos = self.evas_canvas.evas_obj.evas.pointer_canvas_xy
delta_x = self.x_pos - x_pos
delta_y = self.y_pos - y_pos
self.x_pos, self.y_pos = x_pos, y_pos
for icon in self.icons:
icon.set_position(icon.pos[0]-delta_x,icon.pos[1]-delta_y)
self.current_pos = (self.current_pos[0]-delta_x,self.current_pos[1]-delta_y)
#self.marker.set_position(self.marker.pos[0]-delta_x,self.marker.pos[1]-delta_y)
if __name__ == "__main__":
WIDTH = 480
HEIGHT = 640
TITLE = "pylgrim"
WM_NAME = "pylgrim"
WM_CLASS = "swallow"
from optparse import OptionParser
class myOptionParser(OptionParser):
def __init__(self, usage):
OptionParser.__init__(self, usage)
self.add_option("-e",
"--engine",
type="choice",
choices=("x11", "x11-16"),
default="x11-16",
help=("which display engine to use (x11, x11-16), "
"default=%default"))
self.add_option("-n",
"--no-fullscreen",
action="store_true",
help="do not launch in fullscreen")
self.add_option("-o",
"--offline",
action="store_true",
help="do not attempt to download tiles")
self.add_option("-g",
"--geometry",
type="string",
metavar="WxH",
action="callback",
callback=self.parse_geometry,
default=(WIDTH, HEIGHT),
help="use given window geometry")
self.add_option("-f",
"--fps",
type="int",
default=20,
help="frames per second to use, default=%default")
def parse_geometry(self, option, opt, value, parser):
try:
w, h = value.split("x")
w = int(w)
h = int(h)
except Exception, e:
raise optparse.OptionValueError("Invalid format for %s" % option)
parser.values.geometry = (w, h)
class EvasCanvas(object):
def __init__(self, fullscreen, engine, size):
if engine == "x11":
f = ecore.evas.SoftwareX11
elif engine == "x11-16":
if ecore.evas.engine_type_supported_get("software_x11_16"):
f = ecore.evas.SoftwareX11_16
else:
print "warning: x11-16 is not supported, fallback to x11"
f = ecore.evas.SoftwareX11
self.evas_obj = f(w=size[0], h=size[1])
self.evas_obj.callback_delete_request = self.on_delete_request
self.evas_obj.callback_resize = self.on_resize
self.evas_obj.title = TITLE
self.evas_obj.name_class = (WM_NAME, WM_CLASS)
self.evas_obj.fullscreen = fullscreen
self.evas_obj.size = size
self.evas_obj.show()
def on_resize(self, evas_obj):
x, y, w, h = evas_obj.evas.viewport
size = (w, h)
for key in evas_obj.data.keys():
evas_obj.data[key].size = size
#calculate size of tile raster
evas_obj.data["pylgrim"].border_x = int(math.ceil(evas_obj.data["pylgrim"].size[0]/256.0))
evas_obj.data["pylgrim"].border_y = int(math.ceil(evas_obj.data["pylgrim"].size[1]/256.0))
evas_obj.data["pylgrim"].init_redraw()
def on_delete_request(self, evas_obj):
ecore.main_loop_quit()
options, args = myOptionParser(usage="usage: %prog [options]").parse_args()
edje.frametime_set(1.0 / options.fps)
evas_canvas = EvasCanvas(
fullscreen=not options.no_fullscreen,
engine=options.engine,
size=options.geometry
)
filename = os.path.splitext(sys.argv[0])[0] + ".edj"
Pylgrim(evas_canvas, filename, 49.009051, 8.402481, 13, options.offline, )
ecore.main_loop_begin()
'''
export CPPFLAGS="$CPPFLAGS -I/opt/e17/include"
export LDFLAGS="$LDFLAGS -L/opt/e17/lib"
export PKG_CONFIG_PATH="/opt/e17/lib/pkgconfig:$PKG_CONFIG_PATH"
export PATH="$PATH:/opt/e17/bin"
export PYTHONPATH="/home/josch/usr/lib/python2.5/site-packages"
'''