src/gui/gui.py

   1 from config.config import *
   2 from model.projects import Projects
   3
   4 import appuifw
   5 import thread
   6 from log.logging import logger
   7 from e32 import Ao_lock, in_emulator
   8 from key_codes import *
   9 import key_codes
  10
  11
  12 def show_config(cfg):
  13     fields = []
  14     for k, v in cfg.items():
  15         v = cfg.format_value(v)
  16         if isinstance(v, int) or isinstance(v, long):
  17             tname = 'number'
  18             v = int(v)
  19         elif isinstance(v, list) or isinstance(v, tuple):
  20             for item in v[0]:
  21                 if not isinstance(item, unicode):
  22                     raise Exception("list can contain only unicode objects, "\
  23                                     "object %r is not supported" % item)
  24
  25             tname = 'combo'
  26         elif isinstance(v, unicode):
  27             tname = 'text'
  28         else:
  29             raise Exception("%s has non-supported value" % k)
  30
  31         fields.append((unicode(k), tname, v))
  32
  33
  34     form = appuifw.Form(fields=fields, flags=appuifw.FFormEditModeOnly | \
  35                         appuifw.FFormDoubleSpaced)
  36
  37     saved = [False]
  38     def save_hook(param):
  39         saved[0] = True
  40     form.save_hook = save_hook
  41
  42     form.execute()
  43
  44     # return true if user saved, false otherwise
  45     if not saved[0]:
  46         return False
  47
  48     for label, tname, value in form:
  49         if tname == 'combo':
  50             value = (value[0], int(value[1]))
  51
  52         cfg[str(label)] = cfg.parse_value(value)
  53
  54     return True
  55
  56
  57 def no_action():
  58     pass
  59
  60 def applicable_functions(obj,allowed_function_names):
  61     function_names = [function_name for function_name in dir(obj) if function_name in allowed_function_names]
  62     return [eval('obj.%s'%function_name) for function_name in function_names]
  63
  64 def get_key(key_name):
  65     if key_name == '':
  66         key = None
  67     else:
  68         key=eval('EKey%s'%key_name)
  69     return key
  70
  71 def all_key_names():
  72     return filter(lambda entry:entry[0:4]=='EKey',dir(key_codes))
  73 def all_key_values():
  74     key_values=[
  75                 EKey0,
  76                 EKey1,
  77                 EKey2,
  78                 EKey3,
  79                 EKey4,
  80                 EKey5,
  81                 EKey6,
  82                 EKey7,
  83                 EKey8,
  84                 EKey9,
  85                 EKeyStar,
  86                 EKeyHash,
  87                 ]
  88     return key_values
  89
  90
  91 def save_gui(object):
  92     object.old_gui = appuifw.app.body
  93     object.old_menu = appuifw.app.menu
  94     object.old_exit_key_handler = appuifw.app.exit_key_handler
  95     object.old_title=appuifw.app.title
  96     object.lock = Ao_lock()
  97
  98 def restore_gui(object):
  99     appuifw.app.body = object.old_gui
 100     appuifw.app.menu = object.old_menu
 101     appuifw.app.exit_key_handler = object.old_exit_key_handler
 102     appuifw.app.title = object.old_title
 103
 104
 105 class ListView(object):
 106     def __init__(self,title):
 107         self.title = title
 108         self.view = appuifw.Listbox(self.items(),self.change_entry)
 109
 110     def change_entry(self):
 111         pass
 112
 113     def run(self):
 114         self.adjustment = None
 115         appuifw.app.screen=COMMON_CONFIG['screen'].encode('utf-8')
 116         save_gui(self)
 117         appuifw.app.title=self.title
 118         appuifw.app.body=self.view
 119         appuifw.app.exit_key_handler=self.exit
 120         try:
 121             self.lock.wait()
 122             while not self.exit_flag:
 123                 self.refresh()
 124                 self.lock.wait()
 125         except:
 126             pass
 127         restore_gui(self)
 128     def exit(self):
 129         self.exit_flag = True
 130         self.lock.signal()
 131
 132     def update(self,subject=None):
 133         #logger.log(u'Updated %s'%repr(self))
 134         if self.lock:
 135             self.lock.signal()
 136         #pass
 137
 138     def index_changed(self,adjustment=None):
 139         if adjustment:
 140             index = self.selected_index() + adjustment
 141         else:
 142             index = self.selected_index()
 143         if index < 0:
 144             index = len(self.widgets) - 1
 145         if index >= len(self.widgets):
 146             index = 0
 147         self.set_bindings_for_selection(index)
 148
 149     def refresh(self):
 150         appuifw.app.menu=self.get_menu_entries()
 151
 152     def set_index(self,index):
 153         if index > len(self.widgets):
 154             index = len(self.widgets)
 155         if index < 0:
 156             index = 0
 157         self.view.set_list(self.items(),index)
 158
 159     def selected_index(self):
 160         return self.view.current()
 161
 162
 163 class WidgetBasedListView(ListView):
 164     def __init__(self,title):
 165         self.widgets = self.generate_widgets()
 166         super(WidgetBasedListView,self).__init__(title)
 167         self.exit_flag = False
 168
 169     def run(self):
 170         self.refresh()
 171         self.set_bindings_for_selection(0)
 172         ListView.run(self)
 173
 174     def notify(self,object,attribute,new=None,old=None):
 175         self.refresh()
 176     def refresh(self):
 177         self.widgets = self.generate_widgets()
 178         self.redisplay_widgets()
 179         super(WidgetBasedListView,self).refresh()
 180     def redisplay_widgets(self):
 181         self.set_index(self.selected_index())
 182     def items(self):
 183         return self.all_widget_texts()
 184     def all_widget_texts(self):
 185         return [entry.list_repr() for entry in self.widgets]
 186
 187
 188
 189     def current_widget(self):
 190         return self.widgets[self.selected_index()]
 191
 192
 193 class KeyBindingView(object):
 194
 195     def __init__(self):
 196         self.binding_map = {}
 197
 198     def set_keybindings(self, binding_map):
 199         """
 200         Set a new map of key bindings. This map maps method names to a
 201         tuple of keyname and description.
 202
 203         The method name refers to a method on the selected item, or the
 204         current view.
 205
 206         Example: { 'search_item' : ('0', 'Search item') }
 207
 208         """
 209         self.binding_map = binding_map
 210
 211     def get_menu_entries(self):
 212         menu_entries=[]
 213         for key,key_name,description,function in self.key_and_menu_bindings(self.selected_index()):
 214             if description != '':
 215                 if key:
 216                     if key_name == 'Backspace': key_name='C'
 217                     description='[%s] '%key_name +description
 218                 else:
 219                     description='    '+description
 220                 menu_entries.append((description,function))
 221         menu_entries.append((u'Exit', self.exit))
 222         return menu_entries
 223     def set_bindings_for_selection(self,selected_index):
 224         self.remove_all_key_bindings()
 225
 226         for key,key_name,description,function in self.key_and_menu_bindings(selected_index):
 227             if key:
 228                 self.view.bind(key,function)
 229         self.view.bind(EKeyUpArrow,lambda: self.index_changed(-1))
 230         self.view.bind(EKeyDownArrow,lambda: self.index_changed(1))
 231
 232     def remove_all_key_bindings(self):
 233         for key in all_key_values():
 234             self.view.bind(key,no_action)
 235
 236 class SearchableListView(WidgetBasedListView):
 237     def __init__(self,title,entry_filters):
 238         self.current_entry_filter_index = 0
 239         self.entry_filters = entry_filters
 240         self.filtered_list = self.entry_filters[0]
 241         self.lock = None
 242         super(SearchableListView,self).__init__(title)
 243
 244
 245     def search_item(self):
 246         selected_item = appuifw.selection_list(self.all_widget_texts(),search_field=1)
 247         if selected_item == None or selected_item == -1:
 248             selected_item = self.selected_index()
 249         self.view.set_list(self.items(),selected_item)
 250         self.set_bindings_for_selection(selected_item)
 251     def switch_entry_filter(self):
 252         self.current_entry_filter_index += 1
 253         self.filtered_list = self.entry_filters[self.current_entry_filter_index % len(self.entry_filters)]
 254         self.refresh()
 255
 256
 257 class EditableListView(SearchableListView,KeyBindingView):
 258     def __init__(self,title,entry_filters):
 259         KeyBindingView.__init__(self)
 260         super(EditableListView, self).__init__(title,entry_filters)
 261
 262     def key_and_menu_bindings(self,selected_index):
 263         key_and_menu_bindings=[]
 264         for function in applicable_functions(self.widgets[selected_index],self.binding_map)+\
 265             applicable_functions(self,self.binding_map):
 266             execute_and_update_function = self.execute_and_update(function)
 267             (key,description) = self.binding_map[function.__name__]
 268             key_and_menu_bindings.append((get_key(key),key,description,execute_and_update_function))
 269         return key_and_menu_bindings
 270
 271     def change_entry(self):
 272         self.current_widget().change()
 273         self.refresh()
 274     def execute_and_update(self,function):
 275         return lambda: (function(),self.refresh(),self.index_changed())
 276
 277     def notify(self,item,attribute,new=None,old=None):
 278         self.refresh()
 279
 280 #class DisplayableFunction:
 281 #    def __init__(self,display_name,function):
 282 #        self.display_name = display_name
 283 #        self.function = function
 284 #    def list_repr(self):
 285 #        return self.display_name
 286 #    def execute(self):
 287 #        function()
 288
 289 # Public API
 290 __all__= ('EditableListView','show_config')