git.maemo.org Git - pywienerlinien/blob - gotovienna-qml

   1 #!/usr/env/python
   2
   3 """Public transport information for Vienna"""
   4
   5 __author__ = 'kelvan <kelvan@logic.at>'
   6 __version__ = '0.8.2'
   7 __website__ = 'https://github.com/kelvan/gotoVienna/'
   8 __license__ = 'GNU General Public License v3 or later'
   9
  10 from datetime import datetime
  11
  12 from PySide.QtCore import QAbstractListModel, QModelIndex, QObject, Slot, Signal
  13 from PySide.QtGui import QApplication
  14 from PySide.QtDeclarative import QDeclarativeView
  15
  16 from gotovienna.utils import *
  17 from gotovienna.realtime import *
  18 from gotovienna.gps import *
  19
  20 import urllib2
  21 import os
  22 import sys
  23 import threading
  24 from datetime import time
  25
  26 class GotoViennaListModel(QAbstractListModel):
  27     def __init__(self, objects=None):
  28         QAbstractListModel.__init__(self)
  29         if objects is None:
  30             objects = []
  31         self._objects = objects
  32         self.setRoleNames({0: 'modelData'})
  33
  34     def set_objects(self, objects):
  35         self._objects = objects
  36
  37     def get_objects(self):
  38         return self._objects
  39
  40     def get_object(self, index):
  41         return self._objects[index.row()]
  42
  43     def rowCount(self, parent=QModelIndex()):
  44         return len(self._objects)
  45
  46     def data(self, index, role):
  47         if index.isValid():
  48             if role == 0:
  49                 return self.get_object(index)
  50         return None
  51
  52
  53 class Gui(QObject):
  54     def __init__(self):
  55         QObject.__init__(self)
  56         self.itip = ITipParser()
  57         self.lines = []
  58
  59         # Read line names in categorized/sorted order
  60         for _, lines in categorize_lines(self.itip.lines):
  61             self.lines.extend(lines)
  62
  63         self.current_line = ''
  64         self.current_stations = []
  65         self.current_departures = []
  66
  67     @Slot(int, result=str)
  68     def get_direction(self, idx):
  69         return self.current_stations[idx][0]
  70
  71     @Slot(str, str, result='QStringList')
  72     def get_stations(self, line, direction):
  73         print 'line:', line, 'current line:', self.current_line
  74         for dx, stations in self.current_stations:
  75             print 'dx:', dx, 'direction:', direction
  76             if dx == direction:
  77                 return [stationname for stationname, url in stations]
  78
  79         return ['no stations found']
  80
  81     directionsLoaded = Signal()
  82
  83     @Slot(str)
  84     def load_directions(self, line):
  85         def load_async():
  86             stations = sorted(self.itip.get_stations(line).items())
  87
  88             self.current_line = line
  89             self.current_stations = stations
  90
  91             self.directionsLoaded.emit()
  92
  93         threading.Thread(target=load_async).start()
  94
  95     departuresLoaded = Signal()
  96
  97     @Slot(str)
  98     def load_departures(self, url):
  99         def load_async():
 100             def map_departure(dep):
 101                 dep['lowfloor'] = 1 if dep['lowfloor'] else 0
 102                 if type(dep['time']) == time:
 103                     dep['time'] = dep['time'].strftime('%H:%M')
 104                 return dep
 105
 106             self.current_departures = map(map_departure, self.itip.get_departures(url))
 107             print self.current_departures
 108             self.departuresLoaded.emit()
 109
 110         threading.Thread(target=load_async).start()
 111
 112     @Slot(str, str, str, result=str)
 113     def get_directions_url(self, line, direction, station):
 114         return self.itip.get_url_from_direction(line, direction, station)
 115
 116     @Slot(result='QStringList')
 117     def get_lines(self):
 118         return self.lines
 119
 120     @Slot(result='QVariant')
 121     def get_departures(self):
 122         return self.current_departures
 123
 124     @Slot(float, float, result=str)
 125     def get_nearby_stations(self, lat, lon):
 126         try:
 127             return ', '.join(get_nearby_stations(lat, lon))
 128         except Exception as e:
 129             print e.message
 130             return ''
 131
 132     @Slot(str, str)
 133     def search(self, line, station):
 134         line = line.upper()
 135         station = station.decode('utf-8')
 136         print line, station
 137
 138         if line not in self.lines:
 139             return "Invalid line"
 140
 141         try:
 142             stations = sorted(self.itip.get_stations(line).items())
 143             print stations
 144             headers, stations = zip(*stations)
 145             print headers
 146             print stations
 147             details = [(direction, name, url) for direction, stops in stations
 148                         for name, url in stops if match_station(station, name)]
 149             print details
 150         except urllib2.URLError as e:
 151             print e.message
 152             return e.message
 153
 154 if __name__ == '__main__':
 155     app = QApplication(sys.argv)
 156
 157     view = QDeclarativeView()
 158
 159     # instantiate the Python object
 160     itip = Gui()
 161
 162     # expose the object to QML
 163     context = view.rootContext()
 164     context.setContextProperty('itip', itip)
 165
 166     if os.path.abspath(__file__).startswith('/usr/bin/'):
 167         # Assume system-wide installation, QML from /usr/share/
 168         view.setSource('/usr/share/gotovienna/qml/main.qml')
 169     else:
 170         # Assume test from source directory, use relative path
 171         view.setSource(os.path.join(os.path.dirname(__file__), 'qml/main.qml'))
 172
 173     view.showFullScreen()
 174
 175     sys.exit(app.exec_())
 176