configreader.py

这是一个嵌入式linux系统下的命令工具包

        datasizer.Add(StaticText('Max peer connections:'), 1, wxALIGN_CENTER_VERTICAL)
        datasizer.Add(self.maxconnections_data)
        datasizer.Add(StaticText('Default seeding mode:'), 1, wxALIGN_CENTER_VERTICAL)
        datasizer.Add(self.superseeder_data)
        datasizer.Add(StaticText('Expire resume data(days):'), 1, wxALIGN_CENTER_VERTICAL)
        datasizer.Add(self.expirecache_data)
        
        twocolsizer.Add(datasizer)

        infosizer = wxFlexGridSizer(cols = 1)
        self.hinttext = StaticText('', self.FONT, False, 'Blue')
        infosizer.Add(self.hinttext, 1, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL)
        infosizer.SetMinSize((180,100))
        twocolsizer.Add(infosizer, 1, wxEXPAND)

        colsizer.Add(twocolsizer)

        savesizer = wxGridSizer(cols = 3, hgap = 20)
        okButton = wxButton(panel, -1, 'OK')
#        okButton.SetFont(self.default_font)
        savesizer.Add(okButton, 0, wxALIGN_CENTER)

        cancelButton = wxButton(panel, -1, 'Cancel')
#        cancelButton.SetFont(self.default_font)
        savesizer.Add(cancelButton, 0, wxALIGN_CENTER)

        defaultsButton = wxButton(panel, -1, 'Revert to Defaults')
#        defaultsButton.SetFont(self.default_font)
        savesizer.Add(defaultsButton, 0, wxALIGN_CENTER)
        colsizer.Add(savesizer, 1, wxALIGN_CENTER)

        resizewarningtext=StaticText('None of these settings will take effect until the next time you start BitTorrent', self.FONT-2)
        colsizer.Add(resizewarningtext, 1, wxALIGN_CENTER)

        border = wxBoxSizer(wxHORIZONTAL)
        border.Add(colsizer, 1, wxEXPAND | wxALL, 4)
        
        panel.SetSizer(border)
        panel.SetAutoLayout(True)

        def setDefaults(evt, self = self):
          try:
            self.ip_data.SetValue(self.defaults['ip'])
            self.bind_data.SetValue(self.defaults['bind'])
            if sys.version_info >= (2,3) and socket.has_ipv6:
                self.ipv6bindsv4_data.SetSelection(self.defaults['ipv6_binds_v4'])
            self.minpeers_data.SetValue(self.defaults['min_peers'])
            self.displayinterval_data.SetValue(int(self.defaults['display_interval']*1000))
            self.alloctype_data.SetStringSelection(self.defaults['alloc_type'])
            self.allocrate_data.SetValue(int(self.defaults['alloc_rate']))
            if self.defaults['lock_files']:
                if self.defaults['lock_while_reading']:
                    self.locking_data.SetSelection(2)
                else:
                    self.locking_data.SetSelection(1)
            else:
                self.locking_data.SetSelection(0)
            if self.defaults['double_check']:
                if self.defaults['triple_check']:
                    self.doublecheck_data.SetSelection(2)
                else:
                    self.doublecheck_data.SetSelection(1)
            else:
                self.doublecheck_data.SetSelection(0)
            setval = self.defaults['max_files_open']
            if setval == 0:
                setval = 'no limit '
            else:
                setval = str(setval)
            if not setval in self.maxfilesopen_choices:
                setval = self.maxfilesopen_choices[0]
            self.maxfilesopen_data.SetStringSelection(setval)
            setval = self.defaults['max_connections']
            if setval == 0:
                setval = 'no limit '
            else:
                setval = str(setval)
            if not setval in self.maxconnections_choices:
                setval = self.maxconnections_choices[0]
            self.maxconnections_data.SetStringSelection(setval)
            self.superseeder_data.SetSelection(int(self.defaults['super_seeder']))
            setval = self.defaults['expire_cache_data']
            if setval == 0:
                setval = 'never '
            else:
                setval = str(setval)
            if not setval in self.expirecache_choices:
                setval = self.expirecache_choices[0]
            self.expirecache_data.SetStringSelection(setval)
          except:
            self.parent.exception()

        def saveConfigs(evt, self = self):
          try:
            self.advancedConfig['ip'] = self.ip_data.GetValue()
            self.advancedConfig['bind'] = self.bind_data.GetValue()
            if sys.version_info >= (2,3) and socket.has_ipv6:
                self.advancedConfig['ipv6_binds_v4'] = self.ipv6bindsv4_data.GetSelection()
            self.advancedConfig['min_peers'] = self.minpeers_data.GetValue()
            self.advancedConfig['display_interval'] = float(self.displayinterval_data.GetValue())/1000
            self.advancedConfig['alloc_type'] = self.alloctype_data.GetStringSelection()
            self.advancedConfig['alloc_rate'] = float(self.allocrate_data.GetValue())
            self.advancedConfig['lock_files'] = int(self.locking_data.GetSelection() >= 1)
            self.advancedConfig['lock_while_reading'] = int(self.locking_data.GetSelection() > 1)
            self.advancedConfig['double_check'] = int(self.doublecheck_data.GetSelection() >= 1)
            self.advancedConfig['triple_check'] = int(self.doublecheck_data.GetSelection() > 1)
            try:
                self.advancedConfig['max_files_open'] = int(self.maxfilesopen_data.GetStringSelection())
            except:       # if it ain't a number, it must be "no limit"
                self.advancedConfig['max_files_open'] = 0
            try:
                self.advancedConfig['max_connections'] = int(self.maxconnections_data.GetStringSelection())
                self.advancedConfig['max_initiate'] = min(
                    2*self.advancedConfig['min_peers'], self.advancedConfig['max_connections'])
            except:       # if it ain't a number, it must be "no limit"
                self.advancedConfig['max_connections'] = 0
                self.advancedConfig['max_initiate'] = 2*self.advancedConfig['min_peers']
            self.advancedConfig['super_seeder']=int(self.superseeder_data.GetSelection())
            try:
                self.advancedConfig['expire_cache_data'] = int(self.expirecache_data.GetStringSelection())
            except:
                self.advancedConfig['expire_cache_data'] = 0
            self.advancedMenuBox.Close()
          except:
            self.parent.exception()

        def cancelConfigs(evt, self = self):            
            self.advancedMenuBox.Close()

        def ip_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nThe IP reported to the tracker.\n' +
                                  'unless the tracker is on the\n' +
                                  'same intranet as this client,\n' +
                                  'the tracker will autodetect the\n' +
                                  "client's IP and ignore this\n" +
                                  "value.")

        def bind_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nThe IP the client will bind to.\n' +
                                  'Only useful if your machine is\n' +
                                  'directly handling multiple IPs.\n' +
                                  "If you don't know what this is,\n" +
                                  "leave it blank.")

        def ipv6bindsv4_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nCertain operating systems will\n' +
                                  'open IPv4 protocol connections on\n' +
                                  'an IPv6 socket; others require you\n' +
                                  "to open two sockets on the same\n" +
                                  "port, one IPv4 and one IPv6.")

        def minpeers_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nThe minimum number of peers the\n' +
                                  'client tries to stay connected\n' +
                                  'with.  Do not set this higher\n' +
                                  'unless you have a very fast\n' +
                                  "connection and a lot of system\n" +
                                  "resources.")

        def displayinterval_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nHow often to update the\n' +
                                  'graphical display, in 1/1000s\n' +
                                  'of a second. Setting this too low\n' +
                                  "will strain your computer's\n" +
                                  "processor and video access.")

        def alloctype_hint(evt, self = self):
            self.hinttext.SetLabel('\n\nHow to allocate disk space.\n' +
                                  'normal allocates space as data is\n' +
                                  'received, background also adds\n' +
                                  "space in the background, pre-\n" +
                                  "allocate reserves up front, and\n" +
                                  'sparse is only for filesystems\n' +
                                  'that support it by default.')

        def allocrate_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nAt what rate to allocate disk\n' +
                                  'space when allocating in the\n' +
                                  'background.  Set this too high on a\n' +
                                  "slow filesystem and your download\n" +
                                  "will slow to a crawl.")

        def locking_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\n\nFile locking prevents other\n' +
                                  'programs (including other instances\n' +
                                  'of BitTorrent) from accessing files\n' +
                                  "you are downloading.")

        def doublecheck_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nHow much extra checking to do\n' +
                                  'making sure no data is corrupted.\n' +
                                  'Double-check mode uses more CPU,\n' +
                                  "while triple-check mode increases\n" +
                                  "disk accesses.")

        def maxfilesopen_hint(evt, self = self):
            self.hinttext.SetLabel('\n\n\nThe maximum number of files to\n' +
                                  'keep open at the same time.  Zero\n' +
                                  'means no limit.  Please note that\n' +
                                  "if this option is in effect,\n" +
                                  "files are not guaranteed to be\n" +
                                  "locked.")

        def maxconnections_hint(evt, self = self):
            self.hinttext.SetLabel('\n\nSome operating systems, most\n' +
                                  'notably Windows 9x/ME combined\n' +
                                  'with certain network drivers,\n' +
                                  "cannot handle more than a certain\n" +
                                  "number of open ports.  If the\n" +
                                  "client freezes, try setting this\n" +
                                  "to 60 or below.")

        def superseeder_hint(evt, self = self):
            self.hinttext.SetLabel('\n\nThe "super-seed" method allows\n' +
                                  'a single source to more efficiently\n' +
                                  'seed a large torrent, but is not\n' +
                                  "necessary in a well-seeded torrent,\n" +
                                  "and causes problems with statistics.\n" +
                                  "Unless you routinely seed torrents\n" +
                                  "you can enable this by selecting\n" +
                                  '"SUPER-SEED" for connection type.\n' +
                                  '(once enabled it does not turn off.)')

        def expirecache_hint(evt, self = self):
            self.hinttext.SetLabel('\n\nThe client stores temporary data\n' +
                                  'in order to handle downloading only\n' +
                                  'specific files from the torrent and\n' +
                                  "so it can resume downloads more\n" +
                                  "quickly.  This sets how long the\n" +
                                  "client will keep this data before\n" +
                                  "deleting it to free disk space.")

        EVT_BUTTON(self.advancedMenuBox, okButton.GetId(), saveConfigs)
        EVT_BUTTON(self.advancedMenuBox, cancelButton.GetId(), cancelConfigs)
        EVT_BUTTON(self.advancedMenuBox, defaultsButton.GetId(), setDefaults)
        EVT_ENTER_WINDOW(self.ip_data, ip_hint)
        EVT_ENTER_WINDOW(self.bind_data, bind_hint)
        if sys.version_info >= (2,3) and socket.has_ipv6:
            EVT_ENTER_WINDOW(self.ipv6bindsv4_data, ipv6bindsv4_hint)
        EVT_ENTER_WINDOW(self.minpeers_data, minpeers_hint)
        EVT_ENTER_WINDOW(self.displayinterval_data, displayinterval_hint)
        EVT_ENTER_WINDOW(self.alloctype_data, alloctype_hint)
        EVT_ENTER_WINDOW(self.allocrate_data, allocrate_hint)
        EVT_ENTER_WINDOW(self.locking_data, locking_hint)
        EVT_ENTER_WINDOW(self.doublecheck_data, doublecheck_hint)
        EVT_ENTER_WINDOW(self.maxfilesopen_data, maxfilesopen_hint)
        EVT_ENTER_WINDOW(self.maxconnections_data, maxconnections_hint)
        EVT_ENTER_WINDOW(self.superseeder_data, superseeder_hint)
        EVT_ENTER_WINDOW(self.expirecache_data, expirecache_hint)

        self.advancedMenuBox.Show ()
        border.Fit(panel)
        self.advancedMenuBox.Fit()
      except:
        self.parent.exception()


    def CloseAdvanced(self):
        if self.advancedMenuBox is not None:
            try:
                self.advancedMenuBox.Close()
            except wxPyDeadObjectError, e:
                self.advancedMenuBox = None