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__ = '1.0'
   7 __website__ = 'https://github.com/kelvan/gotoVienna/'
   8 __license__ = 'GNU General Public License v3 or later'
   9
  10 from PySide.QtCore import QAbstractListModel, QModelIndex, QObject, Slot, Signal
  11 from PySide.QtGui import QApplication
  12 from PySide.QtDeclarative import QDeclarativeView
  13
  14 from gotovienna.utils import *
  15 from gotovienna.realtime import *
  16
  17 import urllib2
  18 import os
  19 import sys
  20 import threading
  21
  22 class GotoViennaListModel(QAbstractListModel):
  23     def __init__(self, objects=None):
  24         QAbstractListModel.__init__(self)
  25         if objects is None:
  26             objects = []
  27         self._objects = objects
  28         self.setRoleNames({0: 'modelData'})
  29
  30     def set_objects(self, objects):
  31         self._objects = objects
  32
  33     def get_objects(self):
  34         return self._objects
  35
  36     def get_object(self, index):
  37         return self._objects[index.row()]
  38
  39     def rowCount(self, parent=QModelIndex()):
  40         return len(self._objects)
  41
  42     def data(self, index, role):
  43         if index.isValid():
  44             if role == 0:
  45                 return self.get_object(index)
  46         return None
  47
  48
  49 class Gui(QObject):
  50     def __init__(self):
  51         QObject.__init__(self)
  52         self.itip = ITipParser()
  53         self.lines = []
  54
  55         # Read line names in categorized/sorted order
  56         for _, lines in categorize_lines(self.itip.lines):
  57             self.lines.extend(lines)
  58
  59         self.current_line = ''
  60         self.current_stations = []
  61         self.current_departures = []
  62
  63     @Slot(int, result=str)
  64     def get_direction(self, idx):
  65         return self.current_stations[idx][0]
  66
  67     @Slot(str, str, result='QStringList')
  68     def get_stations(self, line, direction):
  69         print 'line:', line, 'current line:', self.current_line
  70         for dx, stations in self.current_stations:
  71             print 'dx:', dx, 'direction:', direction
  72             if dx == direction:
  73                 return [stationname for stationname, url in stations]
  74
  75         return ['no stations found']
  76
  77     directionsLoaded = Signal()
  78
  79     @Slot(str)
  80     def load_directions(self, line):
  81         def load_async():
  82             stations = sorted(self.itip.get_stations(line).items())
  83
  84             self.current_line = line
  85             self.current_stations = stations
  86
  87             self.directionsLoaded.emit()
  88
  89         threading.Thread(target=load_async).start()
  90
  91     departuresLoaded = Signal()
  92
  93     @Slot(str)
  94     def load_departures(self, url):
  95         def load_async():
  96             self.current_departures = [x.get_ftime() for x in
  97                     self.itip.get_departures(url)]
  98             print self.current_departures
  99             self.departuresLoaded.emit()
 100
 101         threading.Thread(target=load_async).start()
 102
 103     @Slot(str, str, str, result=str)
 104     def get_directions_url(self, line, direction, station):
 105         return self.itip.get_url_from_direction(line, direction, station)
 106
 107     @Slot(result='QStringList')
 108     def get_lines(self):
 109         return self.lines
 110
 111     @Slot(result='QStringList')
 112     def get_departures(self):
 113         return self.current_departures
 114
 115     @Slot(str, str)
 116     def search(self, line, station):
 117         line = line.upper()
 118         station = station.decode('utf-8')
 119         print line, station
 120
 121         if line not in self.lines:
 122             return "Invalid line"
 123
 124         try:
 125             stations = sorted(self.itip.get_stations(line).items())
 126             print stations
 127             headers, stations = zip(*stations)
 128             print headers
 129             print stations
 130             details = [(direction, name, url) for direction, stops in stations
 131                         for name, url in stops if match_station(station, name)]
 132             print details
 133         except urllib2.URLError as e:
 134             print e.message
 135             return e.message
 136
 137 if __name__ == '__main__':
 138     app = QApplication(sys.argv)
 139
 140     view = QDeclarativeView()
 141
 142     # instantiate the Python object
 143     itip = Gui()
 144
 145     # expose the object to QML
 146     context = view.rootContext()
 147     context.setContextProperty('itip', itip)
 148
 149     if os.path.abspath(__file__).startswith('/usr/bin/'):
 150         # Assume system-wide installation, QML from /usr/share/
 151         view.setSource('/usr/share/gotovienna/qml/main.qml')
 152     else:
 153         # Assume test from source directory, use relative path
 154         view.setSource(os.path.join(os.path.dirname(__file__), 'qml/main.qml'))
 155
 156     view.showFullScreen()
 157
 158     sys.exit(app.exec_())
 159