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                 self.default_widget.grab_focus()
 114
 115                 def response(dialog, resp):
 116                         import download_box
 117                         if resp == gtk.RESPONSE_CANCEL:
 118                                 self.destroy()
 119                                 sys.exit(1)
 120                         elif resp == gtk.RESPONSE_OK:
 121                                 download_box.download_with_gui(self, prog_args,
 122                                                                 run_afterwards = not download_only)
 123                         elif resp == gtk.RESPONSE_HELP:
 124                                 gui_help.display()
 125                 self.connect('response', response)
 126
 127         def destroyed(self):
 128                 policy.abort_all_downloads()
 129
 130
 131 gui_help = help_box.HelpBox("Injector Help",
 132 ('Overview', """
 133 A program is made up of many different components, typically written by different \
 134 groups of people. Each component is available in multiple versions. The injector is \
 135 used when starting a program. Its job is to decide which implementation of each required \
 136 component to use.
 137
 138 An interface describes what a component does. The injector starts with \
 139 the interface for the program you want to run (like 'The Gimp') and chooses an \
 140 implementation (like 'The Gimp 2.2.0'). However, this implementation \
 141 will in turn depend on other interfaces, such as 'GTK' (which draws the menus \
 142 and buttons). Thus, the injector must choose implementations of \
 143 each dependancy (each of which may require further interfaces, and so on)."""),
 144
 145 ('List of interfaces', """
 146 The main window displays all these interfaces, and the version of each chosen \
 147 implementation. The top-most one represents the program you tried to run, and each direct \
 148 child is a dependancy. The 'Fetch' column shows amount of data that needs to be \
 149 downloaded, or '(cached)' if it is already on this computer.
 150
 151 If you are happy with the choices shown, click on the Download (or Execute) button to \
 152 download (and run) the program."""),
 153
 154 ('Choosing different versions', """
 155 There are three ways to control which implementations are chosen. You can adjust the \
 156 network policy and the overall stability policy, which affect all interfaces, or you \
 157 can edit the policy of individual interfaces.
 158
 159 The 'Network use' option controls how the injector uses the network. If off-line, \
 160 the network is not used at all. If 'Minimal' is selected then the injector will use \
 161 the network if needed, but only if it has no choice. It will run an out-of-date \
 162 version rather than download a newer one. If 'Full' is selected, the injector won't \
 163 worry about how much it downloads, but will always pick the version it thinks is best.
 164
 165 The overall stability policy can either be to prefer stable versions, or to help test \
 166 new versions. Choose whichever suits you. Since different programmers have different \
 167 ideas of what 'stable' means, you may wish to override this on a per-interface basis \
 168 (see below).
 169
 170 To set the policy for an interface individually, select it and click on 'Interface \
 171 Properties'. See that dialog's help text for more information."""),
 172
 173 ('Freshness', """
 174 The interface files, which provide the information about which versions are \
 175 available, are also cached. To update them, click on 'Refresh all now'. You can also \
 176 get the injector to check for new versions automatically from time to time using \
 177 the Freshness setting."""))