Qt receive_tab: toggle_view_button instead of tabs

electrum/gui/qt/receive_tab.py

@@ -73,18 +73,16 @@ def __init__(self, window: 'ElectrumWindow'):
         buttons.addWidget(self.create_invoice_button)
         grid.addLayout(buttons, 4, 0, 1, -1)
 
-        self.receive_address_e = QTextEdit()
-        self.receive_address_help_text = WWLabel('')
-        vbox = QVBoxLayout()
-        vbox.addWidget(self.receive_address_help_text)
-        self.receive_address_help = FramedWidget()
-        self.receive_address_help.setVisible(False)
-        self.receive_address_help.setLayout(vbox)
-
-        self.receive_URI_e = QTextEdit()
-        self.receive_URI_help = WWLabel('')
-        self.receive_lightning_e = QTextEdit()
-        self.receive_lightning_help_text = WWLabel('')
+        self.receive_e = QTextEdit()
+        self.receive_e.setFont(QFont(MONOSPACE_FONT))
+        self.receive_e.setReadOnly(True)
+        self.receive_e.setContextMenuPolicy(Qt.NoContextMenu)
+        self.receive_e.setTextInteractionFlags(Qt.NoTextInteraction)
+        self.receive_e.textChanged.connect(self.update_receive_widgets)
+
+        self.receive_qr = QRCodeWidget(manual_size=True)
+
+        self.receive_help_text = WWLabel('')
         self.receive_rebalance_button = QPushButton('Rebalance')
         self.receive_rebalance_button.suggestion = None
         def on_receive_rebalance():
@@ -103,44 +101,19 @@ def on_receive_swap():
         buttons.addWidget(self.receive_rebalance_button)
         buttons.addWidget(self.receive_swap_button)
         vbox = QVBoxLayout()
-        vbox.addWidget(self.receive_lightning_help_text)
+        vbox.addWidget(self.receive_help_text)
         vbox.addLayout(buttons)
-        self.receive_lightning_help = FramedWidget()
-        self.receive_lightning_help.setVisible(False)
-        self.receive_lightning_help.setLayout(vbox)
-        self.receive_address_qr = QRCodeWidget(manual_size=True)
-        self.receive_URI_qr = QRCodeWidget(manual_size=True)
-        self.receive_lightning_qr = QRCodeWidget(manual_size=True)
-
-        for e in [self.receive_address_e, self.receive_URI_e, self.receive_lightning_e]:
-            e.setFont(QFont(MONOSPACE_FONT))
-            e.setReadOnly(True)
-            e.setContextMenuPolicy(Qt.NoContextMenu)
-            e.setTextInteractionFlags(Qt.NoTextInteraction)
-
-        self.receive_lightning_e.textChanged.connect(self.update_receive_widgets)
-
-        self.receive_address_widget = ReceiveTabWidget(self,
-            self.receive_address_e, self.receive_address_qr, self.receive_address_help)
-        self.receive_URI_widget = ReceiveTabWidget(self,
-            self.receive_URI_e, self.receive_URI_qr, self.receive_URI_help)
-        self.receive_lightning_widget = ReceiveTabWidget(self,
-            self.receive_lightning_e, self.receive_lightning_qr, self.receive_lightning_help)
-
-        from .util import VTabWidget
-        self.receive_tabs = VTabWidget()
-        self.receive_tabs.setMinimumHeight(ReceiveTabWidget.min_size.height())
-
-        #self.receive_tabs.setMinimumHeight(ReceiveTabWidget.min_size.height() + 4) # for margins
-        self.receive_tabs.addTab(self.receive_URI_widget, read_QIcon("link.png"), _('URI'))
-        self.receive_tabs.addTab(self.receive_address_widget, read_QIcon("bitcoin.png"), _('Address'))
-        self.receive_tabs.addTab(self.receive_lightning_widget, read_QIcon("lightning.png"), _('Lightning'))
-        self.receive_tabs.setCurrentIndex(self.config.get('receive_tabs_index', 0))
-        self.receive_tabs.currentChanged.connect(self.on_tab_changed)
-        receive_tabs_sp = QSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
-        receive_tabs_sp.setRetainSizeWhenHidden(True)
-        self.receive_tabs.setSizePolicy(receive_tabs_sp)
-        self.receive_tabs.setVisible(False)
+        self.receive_help_widget = FramedWidget()
+        self.receive_help_widget.setVisible(False)
+        self.receive_help_widget.setLayout(vbox)
+
+        self.receive_widget = ReceiveWidget(
+            self, self.receive_e, self.receive_qr, self.receive_help_widget)
+
+        receive_widget_sp = QSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)
+        receive_widget_sp.setRetainSizeWhenHidden(True)
+        self.receive_widget.setSizePolicy(receive_widget_sp)
+        self.receive_widget.setVisible(False)
 
         self.receive_requests_label = QLabel(_('Requests'))
         # with QDarkStyle, this label may partially cover the qrcode widget.
@@ -150,12 +123,20 @@ def on_receive_swap():
         self.request_list = RequestList(self)
         # toolbar
         self.toolbar, menu = self.request_list.create_toolbar_with_menu('')
+
         self.toggle_qr_button = QPushButton('')
         self.toggle_qr_button.setIcon(read_QIcon('qrcode.png'))
         self.toggle_qr_button.setToolTip(_('Switch between text and QR code view'))
         self.toggle_qr_button.clicked.connect(self.toggle_receive_qr)
         self.toggle_qr_button.setEnabled(False)
         self.toolbar.insertWidget(2, self.toggle_qr_button)
+
+        self.toggle_view_button = QPushButton('')
+        self.toggle_view_button.setToolTip(_('switch between view'))
+        self.toggle_view_button.clicked.connect(self.toggle_view)
+        self.toggle_view_button.setEnabled(False)
+        self.update_view_button()
+        self.toolbar.insertWidget(2, self.toggle_view_button)
         # menu
         menu.addConfig(
             _('Add on-chain fallback to lightning requests'), 'bolt11_fallback', True,
@@ -177,7 +158,7 @@ def on_receive_swap():
         hbox = QHBoxLayout()
         hbox.addLayout(vbox_g)
         hbox.addStretch()
-        hbox.addWidget(self.receive_tabs)
+        hbox.addWidget(self.receive_widget)
 
         self.searchable_list = self.request_list
         vbox = QVBoxLayout(self)
@@ -220,17 +201,33 @@ def on_toggle_bolt11_fallback(self):
         self.wallet.lnworker.clear_invoices_cache()
         self.update_current_request()
 
-    def on_tab_changed(self, i):
+    def update_view_button(self):
+        i = self.config.get('receive_tabs_index', 0)
+        if i == 0:
+            icon, text = read_QIcon("link.png"), _('Bitcoin URI')
+        elif i == 1:
+            icon, text = read_QIcon("bitcoin.png"), _('Address')
+        elif i == 2:
+            icon, text = read_QIcon("lightning.png"), _('Lightning')
+        self.toggle_view_button.setText(text)
+        self.toggle_view_button.setIcon(icon)
+
+    def toggle_view(self):
+        i = self.config.get('receive_tabs_index', 0)
+        i = (i + 1) % (3 if self.wallet.has_lightning() else 2)
         self.config.set_key('receive_tabs_index', i)
-        title, data = self.get_tab_data(i)
+        self.update_current_request()
+        self.update_view_button()
+
+    def on_tab_changed(self):
+        text, data, help_text, title = self.get_tab_data()
         self.window.do_copy(data, title=title)
         self.update_receive_qr_window()
 
     def do_copy(self, e):
         if e.button() != Qt.LeftButton:
             return
-        i = self.receive_tabs.currentIndex()
-        title, data = self.get_tab_data(i)
+        text, data, help_text, title = self.get_tab_data()
         self.window.do_copy(data, title=title)
 
     def toggle_receive_qr(self):
@@ -240,75 +237,59 @@ def toggle_receive_qr(self):
 
     def update_receive_widgets(self):
         b = self.config.get('receive_qr_visible', False)
-        self.receive_URI_widget.update_visibility(b)
-        self.receive_address_widget.update_visibility(b)
-        self.receive_lightning_widget.update_visibility(b)
+        self.receive_widget.update_visibility(b)
 
     def update_current_request(self):
         key = self.request_list.get_current_key()
         req = self.wallet.get_request(key) if key else None
         if req is None:
-            self.receive_URI_e.setText('')
-            self.receive_lightning_e.setText('')
-            self.receive_address_e.setText('')
+            self.receive_e.setText('')
             return
         help_texts = self.wallet.get_help_texts_for_receive_request(req)
-        addr = (req.get_address() or '') if not help_texts.address_is_error else ''
-        URI = (self.wallet.get_request_URI(req) or '') if not help_texts.URI_is_error else ''
-        lnaddr = self.wallet.get_bolt11_invoice(req) if not help_texts.ln_is_error else ''
-        address_help = help_texts.address_help
-        URI_help = help_texts.URI_help
-        ln_help = help_texts.ln_help
+        self.addr = (req.get_address() or '') if not help_texts.address_is_error else ''
+        self.URI = (self.wallet.get_request_URI(req) or '') if not help_texts.URI_is_error else ''
+        self.lnaddr = self.wallet.get_bolt11_invoice(req) if not help_texts.ln_is_error else ''
+        self.address_help = help_texts.address_help
+        self.URI_help = help_texts.URI_help
+        self.ln_help = help_texts.ln_help
         can_rebalance = help_texts.can_rebalance()
         can_swap = help_texts.can_swap()
         self.receive_rebalance_button.suggestion = help_texts.ln_rebalance_suggestion
         self.receive_swap_button.suggestion = help_texts.ln_swap_suggestion
-
         self.receive_rebalance_button.setVisible(can_rebalance)
         self.receive_swap_button.setVisible(can_swap)
         self.receive_rebalance_button.setEnabled(can_rebalance and self.window.num_tasks() == 0)
         self.receive_swap_button.setEnabled(can_swap and self.window.num_tasks() == 0)
-        icon_name = "lightning.png" if lnaddr else "lightning_disconnected.png"
-        self.receive_tabs.setTabIcon(2, read_QIcon(icon_name))
-        # encode lightning invoices as uppercase so QR encoding can use
-        # alphanumeric mode; resulting in smaller QR codes
-        self.receive_address_e.setText(addr)
-        self.receive_address_qr.setData(addr)
-        self.receive_address_help_text.setText(address_help)
-        self.receive_URI_e.setText(URI)
-        self.receive_URI_qr.setData(URI)
-        self.receive_URI_help.setText(URI_help)
-        self.receive_lightning_e.setText(lnaddr)  # TODO maybe prepend "lightning:" ??
-        self.receive_lightning_help_text.setText(ln_help)
-        self.receive_lightning_qr.setData(lnaddr.upper())
-        def update_warnings(text_e, qr_e, warning_text):
-            for w in [text_e, qr_e]:
-                w.setEnabled(bool(text_e.toPlainText()) and not warning_text)
-                w.setToolTip(warning_text)
-        update_warnings(self.receive_address_e,   self.receive_address_qr,   address_help)
-        update_warnings(self.receive_URI_e,       self.receive_URI_qr,       URI_help)
-        update_warnings(self.receive_lightning_e, self.receive_lightning_qr, ln_help)
+        text, data, help_text, title = self.get_tab_data()
+        self.receive_e.setText(text)
+        self.receive_qr.setData(data)
+        self.receive_help_text.setText(help_text)
+        for w in [self.receive_e, self.receive_qr]:
+            w.setEnabled(bool(text) and not help_text)
+            w.setToolTip(help_text)
         # macOS hack (similar to #4777)
-        self.receive_lightning_e.repaint()
-        self.receive_URI_e.repaint()
-        self.receive_address_e.repaint()
+        self.receive_e.repaint()
         # always show
-        self.receive_tabs.setVisible(True)
+        self.receive_widget.setVisible(True)
         self.toggle_qr_button.setEnabled(True)
+        self.toggle_view_button.setEnabled(True)
         self.update_receive_qr_window()
 
-    def get_tab_data(self, i):
+    def get_tab_data(self):
+        i = self.config.get('receive_tabs_index', 0)
         if i == 0:
-            return _('Bitcoin URI'), self.receive_URI_e.toPlainText()
+            out = self.URI, self.URI, self.URI_help, _('Bitcoin URI')
         elif i == 1:
-            return _('Address'), self.receive_address_e.toPlainText()
-        else:
-            return _('Lightning Request'), self.receive_lightning_e.toPlainText()
+            out = self.addr, self.addr, self.address_help, _('Address')
+        elif i == 2:
+            # encode lightning invoices as uppercase so QR encoding can use
+            # alphanumeric mode; resulting in smaller QR codes
+            out = self.lnaddr, self.lnaddr.upper(), self.ln_help, _('Lightning Request')
+        return out
 
     def update_receive_qr_window(self):
         if self.window.qr_window and self.window.qr_window.isVisible():
-            i = self.receive_tabs.currentIndex()
-            title, data = self.get_tab_data(i)
+            text, data, help_text, title = self.get_tab_data()
             if i == 2:
                 data = data.upper()
             self.window.qr_window.qrw.setData(data)
@@ -347,7 +328,7 @@ def create_invoice(self):
         self.receive_amount_e.setText('')
         self.receive_message_e.setText('')
         # copy current tab to clipboard
-        self.on_tab_changed(self.receive_tabs.currentIndex())
+        self.on_tab_changed()
 
     def get_bitcoin_address_for_request(self, amount) -> Optional[str]:
         addr = self.wallet.get_unused_address()
@@ -369,25 +350,25 @@ def get_bitcoin_address_for_request(self, amount) -> Optional[str]:
         return addr
 
     def do_clear(self):
-        self.receive_address_e.setText('')
-        self.receive_URI_e.setText('')
-        self.receive_lightning_e.setText('')
-        self.receive_tabs.setVisible(False)
+        self.receive_e.setText('')
+        self.receive_widget.setVisible(False)
         self.toggle_qr_button.setEnabled(False)
+        self.toggle_view_button.setEnabled(False)
         self.receive_message_e.setText('')
         self.receive_amount_e.setAmount(None)
         self.request_list.clearSelection()
 
 
 
-class ReceiveTabWidget(QWidget):
+class ReceiveWidget(QWidget):
     min_size = QSize(200, 200)
 
     def __init__(self, receive_tab: 'ReceiveTab', textedit: QWidget, qr: QWidget, help_widget: QWidget):
+        QWidget.__init__(self)
         self.textedit = textedit
         self.qr = qr
         self.help_widget = help_widget
-        QWidget.__init__(self)
+        self.setMinimumSize(self.min_size)
         for w in [textedit, qr, help_widget]:
             w.setMinimumSize(self.min_size)
 
@@ -416,6 +397,12 @@ def update_visibility(self, is_qr):
             self.textedit.setVisible(False)
             self.qr.setVisible(False)
 
+    def resizeEvent(self, e):
+        # keep square aspect ratio when resized
+        size = e.size()
+        w = size.height()
+        self.setFixedWidth(w)
+        return super().resizeEvent(e)
 
 class FramedWidget(QFrame):
     def __init__(self):

electrum/gui/qt/util.py

@@ -1263,73 +1263,6 @@ def apply(self, image: QImage):
         return result
 
 
-class SquareTabWidget(QtWidgets.QStackedWidget):
-    def resizeEvent(self, e):
-        # keep square aspect ratio when resized
-        size = e.size()
-        w = size.height()
-        self.setFixedWidth(w)
-        return super().resizeEvent(e)
-
-
-class VTabWidget(QWidget):
-    """QtWidgets.QTabWidget alternative with "West" tab positions and horizontal tab-text."""
-    def __init__(self):
-        QWidget.__init__(self)
-
-        hbox = QHBoxLayout()
-        self.setLayout(hbox)
-        hbox.setContentsMargins(0, 0, 0, 0)
-        hbox.setSpacing(0)
-
-        self._tabs_vbox = tabs_vbox = QVBoxLayout()
-        self._tab_btns = []  # type: List[QPushButton]
-        tabs_vbox.setContentsMargins(0, 0, 0, 0)
-        tabs_vbox.setSpacing(0)
-
-        _tabs_vbox_outer_w = QWidget()
-        _tabs_vbox_outer = QVBoxLayout()
-        _tabs_vbox_outer_w.setLayout(_tabs_vbox_outer)
-        _tabs_vbox_outer_w.setSizePolicy(QSizePolicy(QSizePolicy.Maximum, _tabs_vbox_outer_w.sizePolicy().verticalPolicy()))
-        _tabs_vbox_outer.setContentsMargins(0, 0, 0, 0)
-        _tabs_vbox_outer.setSpacing(0)
-        _tabs_vbox_outer.addLayout(tabs_vbox)
-        _tabs_vbox_outer.addStretch(1)
-
-        self.content_w = content_w = SquareTabWidget()
-        content_w.setStyleSheet("SquareTabWidget {padding:0px; }")
-        hbox.addStretch(1)
-        hbox.addWidget(_tabs_vbox_outer_w)
-        hbox.addWidget(content_w)
-
-        self.currentChanged = content_w.currentChanged
-        self.currentIndex = content_w.currentIndex
-
-    def addTab(self, widget: QWidget, icon: QIcon, text: str):
-        btn = QPushButton(icon, text)
-        btn.setStyleSheet("QPushButton { text-align: left; }")
-        btn.setFocusPolicy(QtCore.Qt.NoFocus)
-        btn.setCheckable(True)
-        btn.setSizePolicy(QSizePolicy.Preferred, btn.sizePolicy().verticalPolicy())
-
-        def on_btn_click():
-            btn.setChecked(True)
-            for btn2 in self._tab_btns:
-                if btn2 != btn:
-                    btn2.setChecked(False)
-            self.content_w.setCurrentIndex(idx)
-        btn.clicked.connect(on_btn_click)
-        idx = len(self._tab_btns)
-        self._tab_btns.append(btn)
-
-        self._tabs_vbox.addWidget(btn)
-        self.content_w.addWidget(widget)
-
-    def setTabIcon(self, idx: int, icon: QIcon):
-        self._tab_btns[idx].setIcon(icon)
-
-    def setCurrentIndex(self, idx: int):
-        self._tab_btns[idx].click()
 
 
 class QtEventListener(EventListener):