properties.py

   1 from zeroinstall.injector.model import *
   2 from zeroinstall.injector import writer
   3 import gtk
   4
   5 import help_box
   6 from dialog import Dialog
   7 from gui import policy
   8 from impl_list import ImplementationList
   9 import time
  10
  11 _dialogs = {}   # Interface -> Properties
  12
  13 def enumerate(items):
  14         x = 0
  15         for i in items:
  16                 yield x, i
  17                 x += 1
  18
  19 class Description(gtk.ScrolledWindow):
  20         def __init__(self):
  21                 gtk.ScrolledWindow.__init__(self, None, None)
  22                 self.set_shadow_type(gtk.SHADOW_IN)
  23                 self.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
  24                 description = gtk.TextView()
  25                 description.set_left_margin(4)
  26                 description.set_right_margin(4)
  27                 description.set_wrap_mode(gtk.WRAP_WORD)
  28                 description.set_editable(False)
  29                 description.set_cursor_visible(False)
  30                 self.add(description)
  31
  32                 self.buffer = description.get_buffer()
  33                 self.heading_style = self.buffer.create_tag(underline = True, scale = 1.2)
  34                 description.set_size_request(-1, 100)
  35
  36         def set_details(self, interface):
  37                 buffer = self.buffer
  38                 heading_style = self.heading_style
  39
  40                 buffer.delete(buffer.get_start_iter(), buffer.get_end_iter())
  41
  42                 iter = buffer.get_start_iter()
  43
  44                 buffer.insert_with_tags(iter,
  45                         '%s (%s)' % (interface.get_name(), interface.summary), heading_style)
  46
  47                 buffer.insert(iter, '\nFull name: %s' % interface.uri)
  48
  49                 # (converts to local time)
  50                 if interface.last_modified:
  51                         buffer.insert(iter, '\nLast upstream change: %s' % time.ctime(interface.last_modified))
  52
  53                 if interface.last_checked:
  54                         buffer.insert(iter, '\nLast checked: %s' % time.ctime(interface.last_checked))
  55
  56                 if interface.last_local_update:
  57                         buffer.insert(iter, '\nLast local update: %s' % time.ctime(interface.last_local_update))
  58
  59                 buffer.insert_with_tags(iter, '\n\nDescription\n', heading_style)
  60
  61                 buffer.insert(iter, interface.description or "-")
  62
  63
  64 class Properties(Dialog):
  65         interface = None
  66         use_list = None
  67
  68         def __init__(self, interface):
  69                 Dialog.__init__(self)
  70                 self.interface = interface
  71                 self.set_title('Interface ' + interface.get_name())
  72                 self.set_default_size(gtk.gdk.screen_width() / 2,
  73                                       gtk.gdk.screen_height() / 3)
  74
  75                 vbox = gtk.VBox(False, 4)
  76                 vbox.set_border_width(4)
  77                 self.vbox.pack_start(vbox, True, True, 0)
  78
  79                 self.add_button(gtk.STOCK_HELP, gtk.RESPONSE_HELP)
  80                 #self.add_button(gtk.STOCK_REFRESH, 1)
  81                 self.add_button(gtk.STOCK_CLOSE, gtk.RESPONSE_CANCEL)
  82                 self.set_default_response(gtk.RESPONSE_CANCEL)
  83
  84                 def response(dialog, resp):
  85                         if resp == gtk.RESPONSE_CANCEL:
  86                                 self.destroy()
  87                         #elif resp == 1:
  88                         #       policy.begin_iface_download(interface, True)
  89                         elif resp == gtk.RESPONSE_HELP:
  90                                 properties_help.display()
  91                 self.connect('response', response)
  92
  93                 vpaned = gtk.VPaned()
  94                 vbox.pack_start(vpaned, True, True, 0)
  95
  96                 description = Description()
  97                 description.set_details(interface)
  98                 vpaned.add1(description)
  99
 100                 self.use_list = ImplementationList(interface)
 101                 vpaned.add2(self.use_list)
 102                 self.use_list.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
 103
 104                 hbox = gtk.HBox(False, 2)
 105                 vbox.pack_start(hbox, False, True, 0)
 106
 107                 stability = gtk.combo_box_new_text()
 108                 stability.append_text('Use default setting')
 109                 stability.set_active(0)
 110                 for i, x in enumerate((stable, testing, developer)):
 111                         stability.append_text(str(x).capitalize())
 112                         if x is interface.stability_policy:
 113                                 stability.set_active(i + 1)
 114                 hbox.pack_start(gtk.Label('Preferred stability:'), False, True, 0)
 115                 hbox.pack_start(stability, False, True, 0)
 116                 def set_stability_policy(combo):
 117                         i = stability.get_active()
 118                         if i == 0:
 119                                 new_stability = None
 120                         else:
 121                                 name = stability.get_model()[i][0].lower()
 122                                 new_stability = stability_levels[name]
 123                         interface.set_stability_policy(new_stability)
 124                         writer.save_interface(interface)
 125                         policy.recalculate()
 126                 stability.connect('changed', set_stability_policy)
 127
 128                 self.update_list()
 129                 vbox.show_all()
 130
 131                 def updated():
 132                         self.update_list()
 133                         description.set_details(interface)
 134                 self.connect('destroy', lambda s: policy.watchers.remove(updated))
 135                 policy.watchers.append(updated)
 136
 137         def update_list(self):
 138                 impls = policy.get_ranked_implementations(self.interface)
 139                 self.use_list.set_items(impls)
 140
 141 def edit(interface):
 142         assert isinstance(interface, Interface)
 143         if interface in _dialogs:
 144                 _dialogs[interface].destroy()
 145         _dialogs[interface] = Properties(interface)
 146         _dialogs[interface].show()
 147
 148 properties_help = help_box.HelpBox("Injector Properties Help",
 149 ('Interface properties', """
 150 This window displays information about an interface. At the top is the interface's \
 151 short name, unique ID, summary and long description. The unique ID is also the \
 152 location which is used to update the information."""),
 153
 154 ('Dates and times', """
 155 Up to three times may be displayed:
 156 - 'Last upstream change' shows the version of the cached copy of the interface file.
 157 - 'Last checked' is the last time a fresh copy of the upstream interface file was \
 158 downloaded.
 159 - 'Last local update' is the modification time of your local additions to the interface. \
 160 You'll only have this displayed if you have made your own custom versions of a program."""),
 161
 162 ('Implementations', """
 163 The main part of the window is a list of all known implementations of the interface. \
 164 The columns have the following meanings:
 165
 166 Version gives the version number. High-numbered versions are considered to be \
 167 better than low-numbered ones.
 168
 169 Stability is 'stable' if the implementation is believed to be stable, 'buggy' if \
 170 it is known to contain serious bugs, and 'testing' if its stability is not yet \
 171 known. This information is normally supplied and updated by the author of the \
 172 software, but you can override their rating (overridden values are shown in upper-case). \
 173 You can also use the special level 'preferred'.
 174
 175 C(ached) indicates whether the implementation is already stored on your computer. \
 176 In off-line mode, only cached implementations are considered for use.
 177
 178 Arch indicates what kind of computer system the implementation is for, or 'any' \
 179 if it works with all types of system.
 180
 181 ID is the unique identifier for the implementation. Normally, this is a cryptographic \
 182 digest of it's contents, but it can also be a simple path name.
 183 """),
 184 ('Sort order', """
 185 The implementations are listed in the injector's currently preferred order (the one \
 186 at the top will actually be used). Usable implementations all come before unusable \
 187 ones.
 188
 189 Unusable ones are those for incompatible \
 190 architectures, those marked as 'buggy', versions explicitly marked as incompatible with \
 191 another interface you are using and, in off-line mode, uncached implementations. Unusable \
 192 implementations are shown crossed out.
 193
 194 For the usable implementations, the order is as follows:
 195
 196 - Preferred implementations come first.
 197
 198 - Then, if network use is set to 'Minimal', cached implementations come before \
 199 non-cached.
 200
 201 - Then, implementations at or above the selected stability level come before all others.
 202
 203 - Then, higher-numbered versions come before low-numbered ones.
 204
 205 - Then cached come before non-cached (for 'Full' network use mode).
 206 """))