mainwindow.py

   1 import gtk
   2 import sys
   3 from iface_browser import InterfaceBrowser
   4 import help_box
   5 from gui import policy
   6 from dialog import Dialog
   7 from zeroinstall.injector.model import stable, testing, network_levels, SafeException
   8 from freshness import freshness_levels, Freshness
   9
  10 class MainWindow(Dialog):
  11         progress = None
  12         browser = None
  13
  14         def __init__(self, prog_args, download_only):
  15                 Dialog.__init__(self)
  16                 self.set_title('Dependency Injector')
  17                 self.set_default_size(gtk.gdk.screen_width() / 3, 300)
  18
  19                 self.connect('destroy', lambda w: self.destroyed())
  20
  21                 tips = gtk.Tooltips()
  22
  23                 # Network use
  24                 hbox = gtk.HBox(False, 2)
  25                 self.vbox.pack_start(hbox, False, True, 0)
  26                 hbox.set_border_width(4)
  27
  28                 network = gtk.combo_box_new_text()
  29                 for level in network_levels:
  30                         network.append_text(level.capitalize())
  31                 network.set_active(list(network_levels).index(policy.network_use))
  32                 hbox.pack_start(gtk.Label('Network use:'), False, True, 0)
  33                 hbox.pack_start(network, True, True, 2)
  34                 def set_network_use(combo):
  35                         policy.network_use = network_levels[network.get_active()]
  36                         policy.save_config()
  37                         policy.recalculate()
  38                 network.connect('changed', set_network_use)
  39
  40                 hbox.show_all()
  41
  42                 # Freshness
  43                 hbox = gtk.HBox(False, 2)
  44                 self.vbox.pack_start(hbox, False, True, 0)
  45                 hbox.set_border_width(4)
  46
  47                 times = [x.time for x in freshness_levels]
  48                 if policy.freshness not in times:
  49                         freshness_levels.append(Freshness(policy.freshness,
  50                                                           '%d seconds' % policy.freshness))
  51                         times.append(policy.freshness)
  52                 freshness = gtk.combo_box_new_text()
  53                 for level in freshness_levels:
  54                         freshness.append_text(str(level))
  55                 freshness.set_active(times.index(policy.freshness))
  56                 hbox.pack_start(gtk.Label('Freshness:'), False, True, 0)
  57                 hbox.pack_start(freshness, True, True, 2)
  58                 def set_freshness(combo):
  59                         policy.freshness = freshness_levels[freshness.get_active()].time
  60                         policy.save_config()
  61                         policy.recalculate()
  62                 freshness.connect('changed', set_freshness)
  63
  64                 button = gtk.Button('Refresh all now')
  65                 button.connect('clicked', lambda b: policy.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('Interface Properties...')
  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                                 sys.exit(1)
 119                         elif resp == gtk.RESPONSE_OK:
 120                                 download_box.download_with_gui(self, prog_args,
 121                                                                 run_afterwards = not download_only)
 122                         elif resp == gtk.RESPONSE_HELP:
 123                                 gui_help.display()
 124                 self.connect('response', response)
 125
 126         def destroyed(self):
 127                 policy.abort_all_downloads()
 128
 129
 130 gui_help = help_box.HelpBox("Injector Help",
 131 ('Overview', """
 132 A program is made up of many different components, typically written by different \
 133 groups of people. Each component is available in multiple versions. The injector is \
 134 used when starting a program. Its job is to decide which implementation of each required \
 135 component to use.
 136
 137 An interface describes what a component does. The injector starts with \
 138 the interface for the program you want to run (like 'The Gimp') and chooses an \
 139 implementation (like 'The Gimp 2.2.0'). However, this implementation \
 140 will in turn depend on other interfaces, such as 'GTK' (which draws the menus \
 141 and buttons). Thus, the injector must choose implementations of \
 142 each dependancy (each of which may require further interfaces, and so on)."""),
 143
 144 ('List of interfaces', """
 145 The main window displays all these interfaces, and the version of each chosen \
 146 implementation. The top-most one represents the program you tried to run, and each direct \
 147 child is a dependancy. The 'Fetch' column shows amount of data that needs to be \
 148 downloaded, or '(cached)' if it is already on this computer.
 149
 150 If you are happy with the choices shown, click on the Download (or Execute) button to \
 151 download (and run) the program."""),
 152
 153 ('Choosing different versions', """
 154 There are three ways to control which implementations are chosen. You can adjust the \
 155 network policy and the overall stability policy, which affect all interfaces, or you \
 156 can edit the policy of individual interfaces.
 157
 158 The 'Network use' option controls how the injector uses the network. If off-line, \
 159 the network is not used at all. If 'Minimal' is selected then the injector will use \
 160 the network if needed, but only if it has no choice. It will run an out-of-date \
 161 version rather than download a newer one. If 'Full' is selected, the injector won't \
 162 worry about how much it downloads, but will always pick the version it thinks is best.
 163
 164 The overall stability policy can either be to prefer stable versions, or to help test \
 165 new versions. Choose whichever suits you. Since different programmers have different \
 166 ideas of what 'stable' means, you may wish to override this on a per-interface basis \
 167 (see below).
 168
 169 To set the policy for an interface individually, select it and click on 'Interface \
 170 Properties'. See that dialog's help text for more information."""),
 171
 172 ('Freshness', """
 173 The interface files, which provide the information about which versions are \
 174 available, are also cached. To update them, click on 'Refresh all now'. You can also \
 175 get the injector to check for new versions automatically from time to time using \
 176 the Freshness setting."""))