URI: 
       tnetwork dialog: add checkpoint, tabs - electrum - Electrum Bitcoin wallet
  HTML git clone https://git.parazyd.org/electrum
   DIR Log
   DIR Files
   DIR Refs
   DIR Submodules
       ---
   DIR commit 2ea3bbea3051946c4dab68c1dbcc878e4410bbec
   DIR parent dd0b018a35e1ab66f7e4f814f9404e6042b31abb
  HTML Author: ThomasV <thomasv@electrum.org>
       Date:   Thu, 23 Mar 2017 21:53:03 +0100
       
       network dialog: add checkpoint, tabs
       
       Diffstat:
         M gui/qt/network_dialog.py            |     164 ++++++++++++++++++++-----------
       
       1 file changed, 109 insertions(+), 55 deletions(-)
       ---
   DIR diff --git a/gui/qt/network_dialog.py b/gui/qt/network_dialog.py
       t@@ -65,37 +65,26 @@ class NetworkChoiceLayout(object):
                    proxy_config = { "mode":"none", "host":"localhost", "port":"9050"}
        
                if not wizard:
       -            n = len(network.get_interfaces())
       -            if n:
       -                status = _("Blockchain") + ": " + "%d "%(network.get_local_height()) + _("blocks") +  ".\n" + _("Getting block headers from %d nodes.")%n
       -            else:
       -                status = _("Not connected")
                    if network.is_connected():
       -                status += "\n" + _("Server") + ": %s"%(host)
       +                status = _("Server") + ": %s"%(host)
                    else:
       -                status += "\n" + _("Disconnected from server")
       +                status = _("Disconnected from server")
                else:
                    status = _("Please choose a server.") + "\n" + _("Press 'Next' if you are offline.")
        
       +        tabs = QTabWidget()
       +        server_tab = QWidget()
       +        protocol_tab = QWidget()
       +        blockchain_tab = QWidget()
       +        tabs.addTab(server_tab, _('Server'))
       +        tabs.addTab(protocol_tab, _('Protocol'))
       +        tabs.addTab(blockchain_tab, _('Blockchain'))
       +
                vbox = QVBoxLayout()
       -        hbox = QHBoxLayout()
       -        l = QLabel()
       -        l.setPixmap(QPixmap(":icons/network.png"))
       -        hbox.addStretch(10)
       -        hbox.addWidget(l)
       -        hbox.addWidget(QLabel(status))
       -        hbox.addStretch(50)
       -        msg = _("Electrum sends your wallet addresses to a single server, in order to receive your transaction history.") + "\n\n" \
       -            + _("In addition, Electrum connects to several nodes in order to download block headers and find out the longest blockchain.") + " " \
       -            + _("This blockchain is used to verify the transactions sent by the address server.")
       -        hbox.addWidget(HelpButton(msg))
       -        vbox.addLayout(hbox)
       -        vbox.addSpacing(15)
        
       -        # grid layout
       -        grid = QGridLayout()
       +        # server tab
       +        grid = QGridLayout(server_tab)
                grid.setSpacing(8)
       -        vbox.addLayout(grid)
        
                # server
                self.server_host = QLineEdit()
       t@@ -103,24 +92,23 @@ class NetworkChoiceLayout(object):
                self.server_port = QLineEdit()
                self.server_port.setFixedWidth(60)
        
       -        grid.addWidget(QLabel(_('Server') + ':'), 0, 0)
       -        grid.addWidget(self.server_host, 0, 1, 1, 2)
       -        grid.addWidget(self.server_port, 0, 3)
       -
       -        # use SSL
       -        self.ssl_cb = QCheckBox(_('Use SSL'))
       -        self.ssl_cb.setChecked(auto_connect)
       -        grid.addWidget(self.ssl_cb, 0, 2, 1, 1, Qt.AlignRight)
       -        self.ssl_cb.stateChanged.connect(self.change_protocol)
       -
                # auto connect
                self.autoconnect_cb = QCheckBox(_('Select server automatically'))
                self.autoconnect_cb.setChecked(auto_connect)
       -        grid.addWidget(self.autoconnect_cb, 1, 1, 1, 3)
                self.autoconnect_cb.setEnabled(self.config.is_modifiable('auto_connect'))
       -        msg = _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain.") + "\n" \
       -            + _("If it is disabled, Electrum will warn you if your server is lagging.")
       -        self.autoconnect_cb.setToolTip(msg)
       +
       +        msg = _("Electrum sends your wallet addresses to a single server, in order to receive your transaction history.") + "\n\n" \
       +            + _("In addition, Electrum connects to several nodes in order to download block headers and find out the longest blockchain.") + " " \
       +            + _("This blockchain is used to verify the transactions sent by the address server.")
       +
       +        grid.addWidget(QLabel(_('Server') + ':'), 0, 0)
       +        grid.addWidget(self.server_host, 0, 1, 1, 2)
       +        grid.addWidget(self.server_port, 0, 3)
       +        grid.addWidget(HelpButton(msg), 0, 4)
       +        grid.addWidget(self.autoconnect_cb, 1, 1, 1, 3)
       +        msg = _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain.") + " " \
       +            + _("If it is disabled, you have to choose a server you want to use. Electrum will warn you if your server is lagging.")
       +        grid.addWidget(HelpButton(msg), 1, 4)
        
                label = _('Active Servers') if network.is_connected() else _('Default Servers')
                self.servers_list_widget = QTreeWidget()
       t@@ -128,12 +116,7 @@ class NetworkChoiceLayout(object):
                self.servers_list_widget.setMaximumHeight(150)
                self.servers_list_widget.setColumnWidth(0, 240)
        
       -        self.change_server(host, protocol)
       -        self.set_protocol(protocol)
       -        self.servers_list_widget.connect(self.servers_list_widget,
       -                                         SIGNAL('currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)'),
       -                                         lambda x,y: self.server_changed(x))
       -        grid.addWidget(self.servers_list_widget, 2, 1, 1, 3)
       +        grid.addWidget(self.servers_list_widget, 2, 0, 1, 5)
        
                def enable_set_server():
                    if config.is_modifiable('server'):
       t@@ -148,6 +131,15 @@ class NetworkChoiceLayout(object):
                self.autoconnect_cb.clicked.connect(enable_set_server)
                enable_set_server()
        
       +        # protocol_tab
       +        grid = QGridLayout(protocol_tab)
       +        grid.setSpacing(8)
       +
       +        # use SSL
       +        self.ssl_cb = QCheckBox(_('Use SSL'))
       +        self.ssl_cb.setChecked(auto_connect)
       +        self.ssl_cb.stateChanged.connect(self.change_protocol)
       +
                # proxy setting
                self.proxy_mode = QComboBox()
                self.proxy_host = QLineEdit()
       t@@ -184,21 +176,82 @@ class NetworkChoiceLayout(object):
                self.proxy_user.connect(self.proxy_user, SIGNAL('textEdited(QString)'), self.proxy_settings_changed)
                self.proxy_password.connect(self.proxy_password, SIGNAL('textEdited(QString)'), self.proxy_settings_changed)
        
       +        self.tor_cb = QCheckBox(_("Use Tor Proxy"))
       +        self.tor_cb.setIcon(QIcon(":icons/tor_logo.png"))
       +        self.tor_cb.hide()
       +        self.tor_cb.clicked.connect(self.use_tor_proxy)
       +
       +        grid.addWidget(self.ssl_cb, 0, 0, 1, 3)
       +        grid.addWidget(self.tor_cb, 1, 0, 1, 3)
       +
                grid.addWidget(QLabel(_('Proxy') + ':'), 4, 0)
                grid.addWidget(self.proxy_mode, 4, 1)
                grid.addWidget(self.proxy_host, 4, 2)
                grid.addWidget(self.proxy_port, 4, 3)
                grid.addWidget(self.proxy_user, 5, 2)
                grid.addWidget(self.proxy_password, 5, 3)
       -        self.tor_button = QCheckBox(_("Use Tor Proxy"))
       -        self.tor_button.setIcon(QIcon(":icons/tor_logo.png"))
       -        self.tor_button.hide()
       -        self.tor_button.clicked.connect(self.use_tor_proxy)
       -        grid.addWidget(self.tor_button, 6, 2, 1, 2)
       +        grid.setRowStretch(6, 1)
       +
       +        # Blockchain Tab
       +        from electrum import bitcoin
       +        from amountedit import AmountEdit
       +        grid = QGridLayout(blockchain_tab)
       +        n = len(network.get_interfaces())
       +        status = _("Connected to %d nodes.")%n if n else _("Not connected")
       +        height_str = "%d "%(network.get_local_height()) + _("blocks")
       +        self.checkpoint_height = self.config.get('checkpoint_height', 0)
       +        self.checkpoint_value = self.config.get('checkpoint_value', bitcoin.GENESIS)
       +        grid.addWidget(QLabel(_("Height") + ':'), 0, 0)
       +        grid.addWidget(QLabel(height_str), 0, 1)
       +        grid.addWidget(QLabel(_('Status') + ':'), 1, 0)
       +        grid.addWidget(QLabel(status), 1, 1, 1, 3)
       +
       +        self.cph_label = QLabel(_('Height'))
       +        self.cph = QLineEdit("%d"%self.checkpoint_height)
       +        self.cph.setFixedWidth(80)
       +        self.cpv_label = QLabel(_('Hash'))
       +        self.cpv = QLineEdit(self.checkpoint_value)
       +        self.cpv.setCursorPosition(0)
       +        self.cpv.setFocusPolicy(Qt.NoFocus)
       +        self.cpv.setReadOnly(True)
       +        def on_cph():
       +            try:
       +                height = int(self.cph.text())
       +            except:
       +                height = 0
       +            self.cph.setText('%d'%height)
       +            if height == self.config.get('checkpoint_height', 0):
       +                return
       +            try:
       +                self.network.print_error("fetching header")
       +                header = self.network.synchronous_get(('blockchain.block.get_header', [height]), 5)
       +                _hash = self.network.blockchain.hash_header(header)
       +            except BaseException as e:
       +                self.network.print_error(str(e))
       +                _hash = ''
       +            self.cpv.setText(_hash)
       +            self.cpv.setCursorPosition(0)
       +            if _hash:
       +                self.checkpoint_height = height
       +                self.checkpoint_value = _hash
       +        self.cph.editingFinished.connect(on_cph)
       +        grid.addWidget(QLabel(_('Checkpoint') +':'), 3, 0, 1, 2)
       +        grid.addWidget(self.cph_label, 4, 0)
       +        grid.addWidget(self.cph, 4, 1)
       +        grid.addWidget(self.cpv_label, 5, 0)
       +        grid.addWidget(self.cpv, 5, 1)
       +        grid.setRowStretch(7, 1)
       +        vbox.addWidget(tabs)
                self.layout_ = vbox
                self.td = td = TorDetector()
                td.found_proxy.connect(self.suggest_proxy)
                td.start()
       +        self.change_server(host, protocol)
       +        self.set_protocol(protocol)
       +        self.servers_list_widget.connect(
       +            self.servers_list_widget,
       +            SIGNAL('currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)'),
       +            lambda x,y: self.server_changed(x))
        
            def layout(self):
                return self.layout_
       t@@ -210,7 +263,6 @@ class NetworkChoiceLayout(object):
                        pruning_level = d.get('pruning','')
                        self.servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ _host, pruning_level ] ))
        
       -
            def set_protocol(self, protocol):
                if protocol != self.protocol:
                    self.protocol = protocol
       t@@ -275,31 +327,33 @@ class NetworkChoiceLayout(object):
                auto_connect = self.autoconnect_cb.isChecked()
        
                self.network.set_parameters(host, port, protocol, proxy, auto_connect)
       +        self.config.set_key('checkpoint_height', self.checkpoint_height)
       +        self.config.set_key('checkpoint_value', self.checkpoint_value)
        
            def suggest_proxy(self, found_proxy):
                self.tor_proxy = found_proxy
       -        self.tor_button.setText("Use Tor proxy at port " + str(found_proxy[1]))
       +        self.tor_cb.setText("Use Tor proxy at port " + str(found_proxy[1]))
                if self.proxy_mode.currentIndex() == 2 \
                    and self.proxy_host.text() == "127.0.0.1" \
                        and self.proxy_port.text() == str(found_proxy[1]):
       -            self.tor_button.setChecked(True)
       -        self.tor_button.show()
       +            self.tor_cb.setChecked(True)
       +        self.tor_cb.show()
        
            def use_tor_proxy(self, use_it):
                # 2 = SOCKS5
                if not use_it:
                    self.proxy_mode.setCurrentIndex(0)
       -            self.tor_button.setChecked(False)
       +            self.tor_cb.setChecked(False)
                else:
                    self.proxy_mode.setCurrentIndex(2)
                    self.proxy_host.setText("127.0.0.1")
                    self.proxy_port.setText(str(self.tor_proxy[1]))
                    self.proxy_user.setText("")
                    self.proxy_password.setText("")
       -            self.tor_button.setChecked(True)
       +            self.tor_cb.setChecked(True)
        
            def proxy_settings_changed(self):
       -        self.tor_button.setChecked(False)
       +        self.tor_cb.setChecked(False)
        
        
        class TorDetector(QThread):