add switch-gui button for qt

[electrum-nvc.git] / lib / gui_qt.py

diff --git a/lib/gui_qt.py b/lib/gui_qt.py
index 077e873..1c364af 100644 (file)
--- a/lib/gui_qt.py
+++ b/lib/gui_qt.py
@@ -166,7 +166,6 @@ class QRCodeWidget(QWidget):
 
         black = QColor(0, 0, 0, 255)
         white = QColor(255, 255, 255, 255)
-        boxsize = 6
 
         if not self.qr:
             qp = QtGui.QPainter()
@@ -176,11 +175,16 @@ class QRCodeWidget(QWidget):
             qp.drawRect(0, 0, 198, 198)
             qp.end()
             return
-        
-        size = self.qr.getModuleCount()*boxsize
+ 
         k = self.qr.getModuleCount()
         qp = QtGui.QPainter()
         qp.begin(self)
+        r = qp.viewport()
+        boxsize = min(r.width(), r.height())*0.8/k
+        size = k*boxsize
+        left = (r.width() - size)/2
+        top = (r.height() - size)/2         
+
         for r in range(k):
             for c in range(k):
                 if self.qr.isDark(r, c):
@@ -189,7 +193,7 @@ class QRCodeWidget(QWidget):
                 else:
                     qp.setBrush(white)
                     qp.setPen(white)
-                qp.drawRect(c*boxsize, r*boxsize, boxsize, boxsize)
+                qp.drawRect(left+c*boxsize, top+r*boxsize, boxsize, boxsize)
         qp.end()
         
 
@@ -208,13 +212,11 @@ class QR_Window(QWidget):
         main_box = QHBoxLayout()
         
         self.qrw = QRCodeWidget()
-        main_box.addWidget(self.qrw)
+        main_box.addWidget(self.qrw, 1)
 
         vbox = QVBoxLayout()
         main_box.addLayout(vbox)
 
-        main_box.addStretch(1)
-
         self.address_label = QLabel("")
         self.address_label.setFont(QFont(MONOSPACE_FONT))
         vbox.addWidget(self.address_label)
@@ -292,6 +294,7 @@ class ElectrumWindow(QMainWindow):
 
     def __init__(self, wallet, config):
         QMainWindow.__init__(self)
+        self.lite = None
         self.wallet = wallet
         self.config = config
         self.wallet.interface.register_callback('updated', self.update_callback)
@@ -599,6 +602,8 @@ class ElectrumWindow(QMainWindow):
             item.setFont(2, QFont(MONOSPACE_FONT))
             item.setFont(3, QFont(MONOSPACE_FONT))
             item.setFont(4, QFont(MONOSPACE_FONT))
+            if value < 0:
+                item.setForeground(3, QBrush(QColor("#BC1E1E")))
             if tx_hash:
                 item.setToolTip(0, tx_hash)
             if is_default_label:
@@ -1104,6 +1109,9 @@ class ElectrumWindow(QMainWindow):
     def create_status_bar(self):
         sb = QStatusBar()
         sb.setFixedHeight(35)
+        qtVersion = qVersion()
+        if (int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
+            sb.addPermanentWidget( StatusBarButton( QIcon(":icons/switchgui.png"), "Switch to Lite Mode", self.go_lite ) )
         if self.wallet.seed:
             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/lock.png"), "Password", lambda: self.change_password_dialog(self.wallet, self) ) )
         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), "Preferences", self.settings_dialog ) )
@@ -1112,6 +1120,15 @@ class ElectrumWindow(QMainWindow):
         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), "Network", lambda: self.network_dialog(self.wallet, self) ) 
         sb.addPermanentWidget( self.status_button )
         self.setStatusBar(sb)
+        
+    def go_lite(self):
+        import gui_lite
+        self.hide()
+        if self.lite:
+            self.lite.mini.show()
+        else:
+            self.lite = gui_lite.ElectrumGui(self.wallet, self.config, self)
+            self.lite.main(None)
 
     def new_contact_dialog(self):
         text, ok = QInputDialog.getText(self, _('New Contact'), _('Address') + ':')
@@ -1200,8 +1217,8 @@ class ElectrumWindow(QMainWindow):
         d.setMinimumSize(270, 300)
         vbox = QVBoxLayout()
         qrw = QRCodeWidget(data)
-        vbox.addWidget(qrw)
-        vbox.addWidget(QLabel(data))
+        vbox.addWidget(qrw, 1)
+        vbox.addWidget(QLabel(data), 0, Qt.AlignHCenter)
         hbox = QHBoxLayout()
         hbox.addStretch(1)