git.maemo.org Git - quicknote/blob - src/simple_list.py

   1 #!/usr/bin/env python2.5\r
   2 # -*- coding: utf-8 -*-\r
   3 \r
   4 """\r
   5  Copyright (C) 2007 Christoph Würstle and in big parts by Gerold Penz\r
   6 \r
   7 This program is free software; you can redistribute it and/or modify\r
   8 it under the terms of the GNU General Public License version 2 as\r
   9 published by the Free Software Foundation.\r
  10 """\r
  11 \r
  12 \r
  13 import pango\r
  14 import gtk\r
  15 \r
  16 import hildonize\r
  17 \r
  18 \r
  19 try:\r
  20         _\r
  21 except NameError:\r
  22         _ = lambda x: x\r
  23 \r
  24 \r
  25 class SimpleList(object):\r
  26         """\r
  27         Stellt eine einfache Liste mit Laufbalken dar. Das wird mit\r
  28         den Objekten ScrolledWindow und TreeView erreicht.\r
  29         """\r
  30 \r
  31         KEY_IDX = 0\r
  32         VALUE_IDX = 1\r
  33 \r
  34         def __init__(self):\r
  35                 """\r
  36                 Initialisieren\r
  37                 """\r
  38                 self._selectedItem = None # (<Position>, <Key>, <Value>)\r
  39 \r
  40                 # Treeview\r
  41                 self._itemlist = gtk.ListStore(str, str)\r
  42                 self._itemView = gtk.TreeView(self._itemlist)\r
  43                 self._itemView.set_headers_visible(False)\r
  44                 self._itemView.get_selection().set_mode(gtk.SELECTION_BROWSE)\r
  45                 self._itemView.connect("cursor-changed", self._on_cursor_changed)\r
  46                 self._itemView.connect("row-activated", self._on_row_activated)\r
  47                 self._itemView.show()\r
  48 \r
  49                 # Key-Spalte hinzuf�gen\r
  50                 self._keyCell = gtk.CellRendererText()\r
  51                 self._keyColumn = gtk.TreeViewColumn("Key")\r
  52                 self._keyColumn.pack_start(self._keyCell, True)\r
  53                 self._keyColumn.add_attribute(self._keyCell, "text", self.KEY_IDX)\r
  54                 self._keyColumn.set_visible(False)\r
  55                 self._itemView.append_column(self._keyColumn)\r
  56 \r
  57                 # Value-Spalte hinzufügen\r
  58                 self._valueCell = gtk.CellRendererText()\r
  59                 self._valueCell.set_property("ellipsize", pango.ELLIPSIZE_END)\r
  60                 self._valueColumn = gtk.TreeViewColumn("Caption")\r
  61                 self._valueColumn.pack_start(self._valueCell, True)\r
  62                 self._valueColumn.add_attribute(self._valueCell, "text", self.VALUE_IDX)\r
  63                 self._itemView.append_column(self._valueColumn)\r
  64 \r
  65                 # Suchspalte setzen\r
  66                 # Leider funktioniert die Suche im Moment nicht so \r
  67                 # wie ich das möchte. Deshalb habe ich die Suche abgeschaltet.\r
  68                 self._itemView.set_enable_search(False)\r
  69 \r
  70                 # ScrolledWindow\r
  71                 self._scrolledWindow = gtk.ScrolledWindow()\r
  72                 self._scrolledWindow.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)\r
  73                 self._scrolledWindow.set_shadow_type(gtk.SHADOW_IN)\r
  74 \r
  75                 # Anzeigen\r
  76                 self._scrolledWindow.add(self._itemView)\r
  77                 self._scrolledWindow = hildonize.hildonize_scrollwindow(self._scrolledWindow)\r
  78                 self._scrolledWindow.show()\r
  79 \r
  80         @property\r
  81         def widget(self):\r
  82                 return self._scrolledWindow\r
  83 \r
  84         def append_item(self, value, key = ""):\r
  85                 """\r
  86                 F�gt der Liste Werte und wenn gew�nscht, Schl�ssel hinzu.\r
  87                 """\r
  88 \r
  89                 self._itemlist.append([key, value])\r
  90 \r
  91         def select_last_item(self):\r
  92                 path = str(len(self._itemlist)-1)\r
  93                 self._itemView.set_cursor(path, self._valueColumn)\r
  94                 return len(self._itemlist)-1\r
  95 \r
  96         def change_item(self, pos, value, key = ""):\r
  97                 self._itemlist[pos] = [key, value]\r
  98 \r
  99         def remove_item(self, pos):\r
 100                 model = self._itemView.get_model()\r
 101                 self._itemlist.remove(model.get_iter(str(pos)))\r
 102 \r
 103         def get_item(self, pos):\r
 104                 return self._itemlist[pos]\r
 105 \r
 106         def clear_items(self):\r
 107                 self._itemlist.clear()\r
 108 \r
 109         def get_selection_data(self):\r
 110                 """\r
 111                 Gibt die Variable self._selectedItem zur�ck.\r
 112                 Diese enth�lt ein Tupel. (<Position>, <Key>, <Value>)\r
 113                 """\r
 114 \r
 115                 return self._selectedItem  # (<Position>, <Key>, <Value>)\r
 116 \r
 117         def set_eventfunction_cursor_changed(self, function):\r
 118                 """\r
 119                 Verbindet die �bergebene Funktion mit dem \r
 120                 Signal "cursor-changed".\r
 121                 """\r
 122 \r
 123                 self._itemView.connect("cursor-changed", function)\r
 124 \r
 125         def _on_row_activated(self, treeview, path, view_column, data = None):\r
 126                 """\r
 127                 Setzt den Wert von self._selectedItems. Dieser Wert kann\r
 128                 mit der Methode "get_selection_data" abgerufen werden.\r
 129                 """\r
 130 \r
 131                 iter = self._itemlist.get_iter(path)\r
 132                 if not iter:\r
 133                         return\r
 134 \r
 135                 self._selectedItem = (\r
 136                         path[0], # Position\r
 137                         self._itemlist.get_value(iter, self.KEY_IDX), # Key\r
 138                         self._itemlist.get_value(iter, self.VALUE_IDX) # Value\r
 139                 )\r
 140 \r
 141         def _on_cursor_changed(self, widget, data1 = None, data2 = None):\r
 142                 """\r
 143                 Setzt den Wert von self._selectedItems. Dieser Wert kann\r
 144                 mit der Methode "get_selection_data" abgerufen werden.\r
 145                 """\r
 146 \r
 147                 selection = widget.get_selection()\r
 148                 (model, iter) = selection.get_selected()\r
 149                 if not iter:\r
 150                         return\r
 151 \r
 152                 self._selectedItem = (\r
 153                         int(selection.get_selected_rows()[1][0][0]), # Position\r
 154                         str(model.get_value(iter, self.KEY_IDX)), # Key\r
 155                         str(model.get_value(iter, self.VALUE_IDX)) # Value\r
 156                 )\r