new widget: QRTextEdit

gui/qt/main_window.py

@@ -45,7 +45,7 @@ from electrum import bmp, pyqrnative
 
 from amountedit import AmountEdit, BTCAmountEdit, MyLineEdit
 from network_dialog import NetworkDialog
-from qrcodewidget import QRCodeWidget
+from qrcodewidget import QRCodeWidget, QRDialog
 
 from decimal import Decimal
 
@@ -664,7 +664,7 @@ class ElectrumWindow(QMainWindow):
 
         from paytoedit import PayToEdit
         self.amount_e = BTCAmountEdit(self.get_decimal_point)
-        self.payto_e = PayToEdit(self.amount_e)
+        self.payto_e = PayToEdit(self)
         self.payto_help = HelpButton(_('Recipient of the funds.') + '\n\n' + _('You may enter a Bitcoin address, a label from your list of contacts (a list of completions will be proposed), or an alias (email-like address that forwards to a Bitcoin address)'))
         grid.addWidget(QLabel(_('Pay to')), 1, 0)
         grid.addWidget(self.payto_e, 1, 1, 1, 3)
@@ -1669,44 +1669,9 @@ class ElectrumWindow(QMainWindow):
 
 
     def show_qrcode(self, data, title = _("QR code")):
-        if not data: return
-        d = QDialog(self)
-        d.setModal(1)
-        d.setWindowTitle(title)
-        d.setMinimumSize(270, 300)
-        vbox = QVBoxLayout()
-        qrw = QRCodeWidget(data)
-        vbox.addWidget(qrw, 1)
-        vbox.addWidget(QLabel(data), 0, Qt.AlignHCenter)
-        hbox = QHBoxLayout()
-        hbox.addStretch(1)
-
-        filename = os.path.join(self.config.path, "qrcode.bmp")
-
-        def print_qr():
-            bmp.save_qrcode(qrw.qr, filename)
-            QMessageBox.information(None, _('Message'), _("QR code saved to file") + " " + filename, _('OK'))
-
-        def copy_to_clipboard():
-            bmp.save_qrcode(qrw.qr, filename)
-            self.app.clipboard().setImage(QImage(filename))
-            QMessageBox.information(None, _('Message'), _("QR code saved to clipboard"), _('OK'))
-
-        b = QPushButton(_("Copy"))
-        hbox.addWidget(b)
-        b.clicked.connect(copy_to_clipboard)
-
-        b = QPushButton(_("Save"))
-        hbox.addWidget(b)
-        b.clicked.connect(print_qr)
-
-        b = QPushButton(_("Close"))
-        hbox.addWidget(b)
-        b.clicked.connect(d.accept)
-        b.setDefault(True)
-
-        vbox.addLayout(hbox)
-        d.setLayout(vbox)
+        if not data: 
+            return
+        d = QRDialog(data, self, title)
         d.exec_()
 
 

gui/qt/paytoedit.py

@@ -18,6 +18,7 @@
 
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
+from qrtextedit import QRTextEdit
 
 import re
 from decimal import Decimal
@@ -29,11 +30,12 @@ RE_ALIAS = '(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>'
 frozen_style = "QWidget { background-color:none; border:none;}"
 normal_style = "QTextEdit { }"
 
-class PayToEdit(QTextEdit):
+class PayToEdit(QRTextEdit):
 
-    def __init__(self, amount_edit):
-        QTextEdit.__init__(self)
-        self.amount_edit = amount_edit
+    def __init__(self, win):
+        QRTextEdit.__init__(self)
+        self.win = win
+        self.amount_edit = win.amount_e
         self.document().contentsChanged.connect(self.update_size)
         self.heightMin = 0
         self.heightMax = 150
@@ -44,6 +46,10 @@ class PayToEdit(QTextEdit):
         self.outputs = []
         self.is_pr = False
 
+    def qr_input(self):
+        from electrum.plugins import run_hook
+        run_hook('scan_qr_hook', lambda x: self.win.pay_from_URI(x))
+
     def lock_amount(self):
         self.amount_edit.setFrozen(True)
 

gui/qt/qrcodewidget.py

@@ -82,3 +82,56 @@ class QRCodeWidget(QWidget):
                 qp.drawRect(left+c*boxsize, top+r*boxsize, boxsize, boxsize)
         qp.end()
         
+
+import os
+from electrum.i18n import _
+
+class QRDialog(QDialog):
+
+    def __init__(self, data, parent=None, title = "", show_text=False):
+        QDialog.__init__(self, parent)
+
+        d = self
+        d.setModal(1)
+        d.setWindowTitle(title)
+        d.setMinimumSize(270, 300)
+        vbox = QVBoxLayout()
+        qrw = QRCodeWidget(data)
+        vbox.addWidget(qrw, 1)
+        if show_text:
+            text = QTextEdit()
+            text.setText(data)
+            text.setReadOnly(True)
+            vbox.addWidget(text)
+        hbox = QHBoxLayout()
+        hbox.addStretch(1)
+
+        if parent:
+            self.config = parent.config
+            filename = os.path.join(self.config.path, "qrcode.bmp")
+
+            def print_qr():
+                bmp.save_qrcode(qrw.qr, filename)
+                QMessageBox.information(None, _('Message'), _("QR code saved to file") + " " + filename, _('OK'))
+
+            def copy_to_clipboard():
+                bmp.save_qrcode(qrw.qr, filename)
+                self.parent().app.clipboard().setImage(QImage(filename))
+                QMessageBox.information(None, _('Message'), _("QR code saved to clipboard"), _('OK'))
+
+                b = QPushButton(_("Copy"))
+                hbox.addWidget(b)
+                b.clicked.connect(copy_to_clipboard)
+
+                b = QPushButton(_("Save"))
+                hbox.addWidget(b)
+                b.clicked.connect(print_qr)
+
+        b = QPushButton(_("Close"))
+        hbox.addWidget(b)
+        b.clicked.connect(d.accept)
+        b.setDefault(True)
+
+        vbox.addLayout(hbox)
+        d.setLayout(vbox)
+

gui/qt/qrtextedit.py

@@ -0,0 +1,43 @@
+from electrum.i18n import _
+from PyQt4.QtGui import *
+from PyQt4.QtCore import *
+
+class QRTextEdit(QTextEdit):
+
+    def __init__(self):
+        QTextEdit.__init__(self)
+        self.button = QToolButton(self)
+        self.button.setIcon(QIcon(":icons/qrcode.png"))
+        self.button.setStyleSheet("QToolButton { border: none; padding: 0px; }")
+        self.button.setVisible(True)
+        self.button.clicked.connect(lambda: self.qr_show() if self.isReadOnly() else self.qr_input())
+        #frameWidth = self.style().pixelMetric(QStyle.PM_DefaultFrameWidth)
+        #self.setStyleSheet(QString("QLineEdit { padding-right: %1px; } ").arg(self.button.sizeHint().width() + frameWidth + 1))
+        #msz = self.minimumSizeHint()
+        #self.setMinimumSize(max(msz.width(), self.button.sizeHint().height() + frameWidth * 2 + 2),
+        #                    max(msz.height(), self.button.sizeHint().height() + frameWidth * 2 + 2))
+
+    def resizeEvent(self, e):
+        o = QTextEdit.resizeEvent(self, e)
+        sz = self.button.sizeHint()
+        frameWidth = self.style().pixelMetric(QStyle.PM_DefaultFrameWidth)
+        self.button.move(self.rect().right() - frameWidth - sz.width(),
+                         (self.rect().bottom() - frameWidth - sz.height()))
+        return o
+
+    def contextMenuEvent(self, e):
+        m = self.createStandardContextMenu()
+        if self.isReadOnly():
+            m.addAction(_("Show as QR code"), self.qr_show)
+        else:
+            m.addAction(_("Read QR code"), self.qr_input)
+        m.exec_(e.globalPos())
+
+    def qr_show(self):
+        from qrcodewidget import QRDialog
+        QRDialog(str(self.toPlainText())).exec_()
+
+    def qr_input(self):
+        from electrum.plugins import run_hook
+        run_hook('scan_qr_hook', self.setText)
+

gui/qt/seed_dialog.py

@@ -21,8 +21,9 @@ from PyQt4.QtCore import *
 import PyQt4.QtCore as QtCore
 from electrum.i18n import _
 from electrum import mnemonic
-from qrcodewidget import QRCodeWidget
+from qrcodewidget import QRCodeWidget, QRDialog
 from util import close_button
+from qrtextedit import QRTextEdit
 
 class SeedDialog(QDialog):
     def __init__(self, parent, seed, imported_keys):
@@ -70,7 +71,7 @@ def show_seed_box(seed, sid=None):
                + _("If you ever need to recover your wallet from seed, you will need both this seed and your cold seed.") + " " \
 
     label1 = QLabel(msg+ ":")
-    seed_text = QTextEdit(seed)
+    seed_text = QRTextEdit(seed)
     seed_text.setReadOnly(True)
     seed_text.setMaximumHeight(130)
 
@@ -106,7 +107,7 @@ def enter_seed_box(msg, sid=None):
     label = QLabel(msg)
     label.setWordWrap(True)
 
-    seed_e = QTextEdit()
+    seed_e = QRTextEdit()
     seed_e.setMaximumHeight(100)
     seed_e.setTabChangesFocus(True)
 

gui/qt/util.py

@@ -98,6 +98,7 @@ def ok_cancel_buttons(dialog, ok_label=_("OK") ):
     return hbox
 
 def text_dialog(parent, title, label, ok_label, default=None):
+    from qrtextedit import QRTextEdit
     dialog = QDialog(parent)
     dialog.setMinimumWidth(500)
     dialog.setWindowTitle(title)
@@ -105,7 +106,7 @@ def text_dialog(parent, title, label, ok_label, default=None):
     l = QVBoxLayout()
     dialog.setLayout(l)
     l.addWidget(QLabel(label))
-    txt = QTextEdit()
+    txt = QRTextEdit()
     if default:
         txt.setText(default)
     l.addWidget(txt)

icons.qrc

@@ -24,5 +24,6 @@
     <file>icons/unconfirmed.png</file>
     <file>icons/network.png</file>
     <file>icons/dark_background.png</file>
+    <file>icons/qrcode.png</file>
   </qresource>
 </RCC>

plugins/qrscanner.py

@@ -45,11 +45,6 @@ class Plugin(BasePlugin):
     def init(self):
         self.win = self.gui.main_window
         self.win.raw_transaction_menu.addAction(_("&From QR code"), self.read_raw_qr)
-        b = QPushButton(_("Scan QR code"))
-        b.clicked.connect(lambda: self.win.pay_from_URI(self.scan_qr()))
-        self.win.send_grid.addWidget(b, 1, 5)
-        self.win.send_grid.setColumnStretch(5, 0)
-        self.win.send_grid.setColumnStretch(6, 1)
 
     def init_transaction_dialog(self, dialog, buttons):
         b = QPushButton(_("Show QR code"))
@@ -59,6 +54,12 @@ class Plugin(BasePlugin):
     def is_available(self):
         return self._is_available
 
+    def scan_qr_hook(self, func):
+        data = self.scan_qr()
+        if type(data) != str:
+            return
+        func(data)
+
     def scan_qr(self):
         proc = zbar.Processor()
         try:
@@ -84,7 +85,7 @@ class Plugin(BasePlugin):
     def show_raw_qr(self, tx):
         try:
             json_text = json.dumps(tx.as_dict()).replace(' ', '')
-            self.win.show_qrcode(json_text, 'Unsigned Transaction')
+            self.win.show_qrcode(json_text, 'Transaction')
         except Exception as e:
             self.win.show_message(str(e))