plugins settings widget

gui/qt/main_window.py

@@ -2083,19 +2083,27 @@ class ElectrumWindow(QMainWindow):
         grid.setColumnStretch(0,1)
         w.setLayout(grid)
 
-        def mk_toggle(cb, p):
-            return lambda: cb.setChecked(p.toggle())
+        def do_toggle(cb, p, w):
+            r = p.toggle()
+            cb.setChecked(r)
+            if w: w.setEnabled(r)
+
+        def mk_toggle(cb, p, w):
+            return lambda: do_toggle(cb,p,w)
+
         for i, p in enumerate(plugins):
             try:
                 cb = QCheckBox(p.fullname())
                 cb.setDisabled(not p.is_available())
                 cb.setChecked(p.is_enabled())
-                cb.clicked.connect(mk_toggle(cb,p))
                 grid.addWidget(cb, i, 0)
                 if p.requires_settings():
-                    b = EnterButton(_('Settings'), p.settings_dialog)
-                    b.setEnabled( p.is_enabled() )
-                    grid.addWidget(b, i, 1)
+                    w = p.settings_widget(self)
+                    w.setEnabled( p.is_enabled() )
+                    grid.addWidget(w, i, 1)
+                else: 
+                    w = None
+                cb.clicked.connect(mk_toggle(cb,p,w))
                 grid.addWidget(HelpButton(p.description()), i, 2)
             except:
                 print_msg(_("Error: cannot display plugin"), p)

plugins/exchange_rate.py

@@ -49,10 +49,11 @@ class Exchanger(threading.Thread):
                 quote_currencies[r] = self._lookup_rate(response, r)
             with self.lock:
                 self.quote_currencies = quote_currencies
-            self.parent.emit(SIGNAL("refresh_balance()"))
+            self.parent.set_currencies(quote_currencies)
         except KeyError:
             pass
 
+            
     def get_currencies(self):
         return [] if self.quote_currencies == None else sorted(self.quote_currencies.keys())
 
@@ -68,20 +69,28 @@ class Plugin(BasePlugin):
     def description(self):
         return """exchange rates, retrieved from blockchain.info"""
 
+
+    def __init__(self,a,b):
+        BasePlugin.__init__(self,a,b)
+        self.currencies = [self.config.get('currency', "EUR")]
+
     def init(self):
         self.win = self.gui.main_window
-        self.exchanger = Exchanger(self.win)
-        self.win.connect(self.win, SIGNAL("refresh_balance()"), self.win.update_wallet)
+        self.win.connect(self.win, SIGNAL("refresh_currencies()"), self.win.update_status)
         # Do price discovery
+        self.exchanger = Exchanger(self)
         self.exchanger.start()
-        self.gui.exchanger = self.exchanger
 
+    def set_currencies(self, quote_currencies):
+        self.currencies = sorted(quote_currencies.keys())
+        self.win.emit(SIGNAL("refresh_currencies()"))
+        self.win.emit(SIGNAL("refresh_currencies_combo()"))
 
     def set_quote_text(self, btc_balance, r):
         r[0] = self.create_quote_text(Decimal(btc_balance) / 100000000)
 
     def create_quote_text(self, btc_balance):
-        quote_currency = self.config.get("currency", "None")
+        quote_currency = self.config.get("currency", "EUR")
         quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
         if quote_balance is None:
             quote_text = ""
@@ -94,37 +103,37 @@ class Plugin(BasePlugin):
         return True
 
 
-    def settings_dialog(self):
-        d = QDialog(self.win)
+    def toggle(self):
+        out = BasePlugin.toggle(self)
+        self.win.update_status()
+        return out
 
-        vbox = QVBoxLayout(d)
 
-        grid = QGridLayout()
-        vbox.addLayout(grid)
+    def settings_widget(self, window):
+        combo = QComboBox()
 
-        currencies = self.exchanger.get_currencies()
-        currencies.insert(0, "None")
+        def on_change(x):
+            cur_request = str(self.currencies[x])
+            if cur_request != self.config.get('currency', "EUR"):
+                self.config.set_key('currency', cur_request, True)
+                self.win.update_status()
 
-        cur_label=QLabel(_('Currency') + ':')
-        grid.addWidget(cur_label , 2, 0)
-        cur_combo = QComboBox()
-        cur_combo.addItems(currencies)
+        def set_currencies(combo):
             try:
-            index = currencies.index(self.config.get('currency', "None"))
+                combo.clear()
+            except:
+                return
+            combo.addItems(self.currencies)
+            try:
+                index = self.currencies.index(self.config.get('currency', "EUR"))
             except:
                 index = 0
-        cur_combo.setCurrentIndex(index)
-        grid.addWidget(cur_combo, 2, 1)
-        grid.addWidget(HelpButton(_('Select which currency is used for quotes.') + ' '), 2, 2)
+            combo.setCurrentIndex(index)
 
-        vbox.addLayout(ok_cancel_buttons(d))
-
-        if d.exec_():
-
-            cur_request = str(currencies[cur_combo.currentIndex()])
-            if cur_request != self.config.get('currency', "None"):
-                self.config.set_key('currency', cur_request, True)
-                self.win.update_wallet()
+        set_currencies(combo)
+        combo.currentIndexChanged.connect(on_change)
+        combo.connect(window, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo))
+        return combo
 
 
         

plugins/labels.py

@@ -20,7 +20,7 @@ from electrum import bmp, pyqrnative
 from electrum.plugins import BasePlugin
 from electrum.i18n import _
 
-from electrum_gui.qt import HelpButton
+from electrum_gui.qt import HelpButton, EnterButton
 
 class Plugin(BasePlugin):
 
@@ -95,6 +95,9 @@ class Plugin(BasePlugin):
             print_error('Error connecting to service: %s ' %  e)
             return False
 
+    def settings_widget(self, window):
+        return EnterButton(_('Settings'), self.settings_dialog)
+
     def settings_dialog(self):
         def check_for_api_key(api_key):
             if api_key and len(api_key) > 12: