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