mainwindow.py

   1 import gtk
   2 from iface_browser import InterfaceBrowser
   3 import help_box
   4 from gui import policy
   5 from dialog import Dialog
   6 from model import stable, testing, network_levels, SafeException
   7 from freshness import freshness_levels, Freshness
   8
   9 class MainWindow(Dialog):
  10         progress = None
  11         browser = None
  12
  13         def __init__(self, prog_args, download_only):
  14                 Dialog.__init__(self)
  15                 self.set_title('Dependency Injector')
  16                 self.set_default_size(400, 300)
  17
  18                 tips = gtk.Tooltips()
  19
  20                 # Network use
  21                 hbox = gtk.HBox(False, 2)
  22                 self.vbox.pack_start(hbox, False, True, 0)
  23                 hbox.set_border_width(4)
  24
  25                 network = gtk.combo_box_new_text()
  26                 for level in network_levels:
  27                         network.append_text(level.capitalize())
  28                 network.set_active(list(network_levels).index(policy.network_use))
  29                 hbox.pack_start(gtk.Label('Network use:'), False, True, 0)
  30                 hbox.pack_start(network, True, True, 2)
  31                 def set_network_use(combo):
  32                         policy.network_use = network_levels[network.get_active()]
  33                         policy.save_config()
  34                         policy.recalculate()
  35                 network.connect('changed', set_network_use)
  36
  37                 hbox.show_all()
  38
  39                 # Freshness
  40                 hbox = gtk.HBox(False, 2)
  41                 self.vbox.pack_start(hbox, False, True, 0)
  42                 hbox.set_border_width(4)
  43
  44                 times = [x.time for x in freshness_levels]
  45                 if policy.freshness not in times:
  46                         freshness_levels.append(Freshness(policy.freshness,
  47                                                           '%d seconds' % policy.freshness))
  48                         times.append(policy.freshness)
  49                 freshness = gtk.combo_box_new_text()
  50                 for level in freshness_levels:
  51                         freshness.append_text(str(level))
  52                 freshness.set_active(times.index(policy.freshness))
  53                 hbox.pack_start(gtk.Label('Freshness:'), False, True, 0)
  54                 hbox.pack_start(freshness, True, True, 2)
  55                 def set_freshness(combo):
  56                         policy.freshness = freshness_levels[freshness.get_active()].time
  57                         policy.save_config()
  58                         policy.recalculate()
  59                 freshness.connect('changed', set_freshness)
  60
  61                 button = gtk.Button('Refresh all now')
  62                 def refresh_all(b):
  63                         for x in policy.walk_interfaces():
  64                                 policy.begin_iface_download(x, True)
  65                 button.connect('clicked', refresh_all)
  66                 hbox.pack_start(button, False, True, 2)
  67
  68                 hbox.show_all()
  69
  70                 # Tree view
  71                 self.browser = InterfaceBrowser()
  72                 self.vbox.pack_start(self.browser, True, True, 0)
  73                 self.browser.show()
  74
  75                 # Select versions
  76                 hbox = gtk.HBox(False, 2)
  77                 self.vbox.pack_start(hbox, False, True, 0)
  78                 hbox.set_border_width(4)
  79
  80                 button = gtk.Button()
  81                 self.browser.edit_properties.connect_proxy(button)
  82                 hbox.pack_start(button, False, True, 0)
  83
  84                 stable_toggle = gtk.CheckButton('Help test new versions')
  85                 hbox.pack_start(stable_toggle, False, True, 0)
  86                 tips.set_tip(stable_toggle,
  87                         "Try out new versions as soon as they are available, instead of "
  88                         "waiting for them to be marked as 'stable'. "
  89                         "This sets the default policy. Click on 'Interface Properties...' "
  90                         "to set the policy for an individual interface.")
  91                 stable_toggle.set_active(policy.help_with_testing)
  92                 def toggle_stability(toggle):
  93                         policy.help_with_testing = toggle.get_active()
  94                         policy.save_config()
  95                         policy.recalculate()
  96                 stable_toggle.connect('toggled', toggle_stability)
  97
  98                 hbox.show_all()
  99
 100                 # Progress bar
 101                 self.progress = gtk.ProgressBar()
 102                 self.vbox.pack_start(self.progress, False, True, 0)
 103
 104                 # Responses
 105
 106                 self.add_button(gtk.STOCK_HELP, gtk.RESPONSE_HELP)
 107                 self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 108                 if download_only:
 109                         self.add_mixed_button('Download', gtk.STOCK_NETWORK, gtk.RESPONSE_OK)
 110                 else:
 111                         self.add_button(gtk.STOCK_EXECUTE, gtk.RESPONSE_OK)
 112                 self.set_default_response(gtk.RESPONSE_OK)
 113
 114                 def response(dialog, resp):
 115                         import download_box
 116                         if resp == gtk.RESPONSE_CANCEL:
 117                                 self.destroy()
 118                         elif resp == gtk.RESPONSE_OK:
 119                                 download_box.download_with_gui(self, prog_args,
 120                                                                 run_afterwards = not download_only)
 121                         elif resp == gtk.RESPONSE_HELP:
 122                                 gui_help.display()
 123                 self.connect('response', response)
 124
 125 gui_help = help_box.HelpBox("Injector Help",
 126 ('Overview', """
 127 A program is made up of many different components, typically written by different \
 128 groups of people. Each component is available in multiple versions. The injector is \
 129 used when starting a program. Its job is to decide which implementation of each required \
 130 component to use.
 131
 132 An interface describes what a component does. The injector starts with \
 133 the interface for the program you want to run (like 'The Gimp') and chooses an \
 134 implementation (like 'The Gimp 2.2.0'). However, this implementation \
 135 will in turn depend on other interfaces, such as 'GTK' (which draws the menus \
 136 and buttons). Thus, the injector must choose implementations of \
 137 each dependancy (each of which may require further interfaces, and so on)."""),
 138
 139 ('List of interfaces', """
 140 The main window displays all these interfaces, and the version of each chosen \
 141 implementation. The top-most one represents the program you tried to run, and each direct \
 142 child is a dependancy.
 143
 144 If you are happy with the choices shown, click on the Execute button to run the \
 145 program."""),
 146
 147 ('Choosing different versions', """
 148 There are three ways to control which implementations are chosen. You can adjust the \
 149 network policy and the overall stability policy, which affect all interfaces, or you \
 150 can edit the policy of individual interfaces.
 151
 152 The 'Network use' option controls how the injector uses the network. If off-line, \
 153 the network is not used at all. If 'Minimal' is selected then the injector will use \
 154 the network if needed, but only if it has no choice. It will run an out-of-date \
 155 version rather than download a newer one. If 'Full' is selected, the injector won't \
 156 worry about how much it downloads, but will always pick the version it thinks is best.
 157
 158 The overall stability policy can either be to prefer stable versions, or to help test \
 159 new versions. Choose whichever suits you. Since different programmers have different \
 160 ideas of what 'stable' means, you may wish to override this on a per-interface basis \
 161 (see below).
 162
 163 To set the policy for an interface individually, select it and click on 'Interface \
 164 Properties'. See that dialog's help text for more information."""))