Show a dialog with QR-code for selected bm-address

setup.py

@@ -191,6 +191,9 @@ if __name__ == "__main__":
             # TODO: add keywords
             #keywords='',
             install_requires=['msgpack-python'],
+            extras_require={
+                'qrcode': ['qrcode']
+            },
             classifiers=[
                 "License :: OSI Approved :: MIT License"
                 "Operating System :: OS Independent",
@@ -208,6 +211,7 @@ if __name__ == "__main__":
                 'pybitmessage.network',
                 'pybitmessage.pyelliptic',
                 'pybitmessage.socks',
+                'pybitmessage.plugins'
             ],
             package_data={'': [
                 'bitmessageqt/*.ui', 'bitmsghash/*.cl', 'sslkeys/*.pem',
@@ -216,11 +220,15 @@ if __name__ == "__main__":
             ]},
             ext_modules=[bitmsghash],
             zip_safe=False,
-            #entry_points={
+            entry_points={
+                'gui.menu': [
+                    'popMenuYourIdentities.qrcode = '
+                    'pybitmessage.plugins.qrcodeui [qrcode]'
+                ],
             #    'console_scripts': [
             #        'pybitmessage = pybitmessage.bitmessagemain:main'
             #    ]
-            #},
+            },
             scripts=['src/pybitmessage']
         )
     except SystemExit:

src/bitmessageqt/__init__.py

@@ -88,6 +88,12 @@ from statusbar import BMStatusBar
 import throttle
 from version import softwareVersion
 
+try:
+    from plugins.plugin import get_plugins
+except ImportError:
+    get_plugins = False
+
+
 def _translate(context, text, disambiguation = None, encoding = None, number = None):
     if number is None:
         return QtGui.QApplication.translate(context, text)
@@ -3613,7 +3619,7 @@ class MyForm(settingsmixin.SMainWindow):
         address = self.getCurrentAccount()
         clipboard = QtGui.QApplication.clipboard()
         clipboard.setText(str(address))
-        
+
     def on_action_ClipboardMessagelist(self):
         tableWidget = self.getCurrentMessagelist()
         currentColumn = tableWidget.currentColumn()
@@ -3741,6 +3747,12 @@ class MyForm(settingsmixin.SMainWindow):
             self.popMenuYourIdentities.addAction(self.actionEmailGateway)
             self.popMenuYourIdentities.addSeparator()
         self.popMenuYourIdentities.addAction(self.actionMarkAllRead)
+
+        if get_plugins:
+            for plugin in get_plugins(
+                    'gui.menu', 'popMenuYourIdentities'):
+                plugin(self)
+
         self.popMenuYourIdentities.exec_(
             self.ui.treeWidgetYourIdentities.mapToGlobal(point))
 

src/plugins/plugin.py

@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+
+import pkg_resources
+
+
+def get_plugins(group, point, name=None):
+    for plugin in pkg_resources.iter_entry_points(group):
+        if plugin.name.startswith(point):
+            try:
+                yield plugin.load().connect_plugin
+            except (AttributeError, pkg_resources.DistributionNotFound):
+                continue

src/plugins/qrcodeui.py

@@ -0,0 +1,101 @@
+# -*- coding: utf-8 -*-
+
+from PyQt4 import QtGui, QtCore
+import qrcode
+
+from pybitmessage.tr import translateText
+
+try:
+    _fromUtf8 = QtCore.QString.fromUtf8
+except AttributeError:
+    _fromUtf8 = lambda s: s
+
+
+# http://stackoverflow.com/questions/20452486
+class Image(qrcode.image.base.BaseImage):
+    def __init__(self, border, width, box_size):
+        self.border = border
+        self.width = width
+        self.box_size = box_size
+        size = (width + border * 2) * box_size
+        self._image = QtGui.QImage(
+            size, size, QtGui.QImage.Format_RGB16)
+        self._image.fill(QtCore.Qt.white)
+
+    def pixmap(self):
+        return QtGui.QPixmap.fromImage(self._image)
+
+    def drawrect(self, row, col):
+        painter = QtGui.QPainter(self._image)
+        painter.fillRect(
+            (col + self.border) * self.box_size,
+            (row + self.border) * self.box_size,
+            self.box_size, self.box_size,
+            QtCore.Qt.black)
+
+    def save(self, stream, kind=None):
+        pass
+
+
+class Ui_qrcodeDialog(object):
+    def setupUi(self, qrcodeDialog):
+        qrcodeDialog.setObjectName(_fromUtf8("qrcodeDialog"))
+        self.image = QtGui.QLabel(qrcodeDialog)
+        self.label = QtGui.QLabel(qrcodeDialog)
+        font = QtGui.QFont()
+        font.setBold(True)
+        font.setWeight(75)
+        self.label.setFont(font)
+        self.label.setAlignment(
+            QtCore.Qt.AlignCenter | QtCore.Qt.AlignVCenter)
+        self.buttonBox = QtGui.QDialogButtonBox(qrcodeDialog)
+        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
+        self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Ok)
+        layout = QtGui.QVBoxLayout(qrcodeDialog)
+        layout.addWidget(self.image)
+        layout.addWidget(self.label)
+        layout.addWidget(self.buttonBox)
+
+        self.retranslateUi(qrcodeDialog)
+        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(
+            _fromUtf8("accepted()")), qrcodeDialog.accept)
+        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(
+            _fromUtf8("rejected()")), qrcodeDialog.reject)
+        QtCore.QMetaObject.connectSlotsByName(qrcodeDialog)
+
+    def retranslateUi(self, qrcodeDialog):
+        qrcodeDialog.setWindowTitle(QtGui.QApplication.translate(
+            "qrcodeDialog", "QR-code",
+            None, QtGui.QApplication.UnicodeUTF8
+        ))
+
+    def render(self, text):
+        self.label.setText(text)
+        self.image.setPixmap(
+            qrcode.make(text, image_factory=Image).pixmap())
+
+
+class qrcodeDialog(QtGui.QDialog):
+
+    def __init__(self, parent):
+        QtGui.QWidget.__init__(self, parent)
+        self.ui = Ui_qrcodeDialog()
+        self.ui.setupUi(self)
+        self.parent = parent
+        QtGui.QWidget.resize(self, QtGui.QWidget.sizeHint(self))
+
+
+def connect_plugin(form):
+    def on_action_ShowQR():
+        form.qrcodeDialogInstance = qrcodeDialog(form)
+        form.qrcodeDialogInstance.ui.render(
+            str(form.getCurrentAccount())
+        )
+        form.qrcodeDialogInstance.exec_()
+
+    form.actionShowQRCode = \
+        form.ui.addressContextMenuToolbarYourIdentities.addAction(
+            translateText("MainWindow", "Show QR-code"),
+            on_action_ShowQR
+        )
+    form.popMenuYourIdentities.addAction(form.actionShowQRCode)

src/translations/bitmessage.pro

@@ -41,7 +41,8 @@ SOURCES	= 	../addresses.py\
 			../bitmessageqt/regenerateaddresses.py\
 			../bitmessageqt/safehtmlparser.py\
 			../bitmessageqt/settings.py\
-			../bitmessageqt/specialaddressbehavior.py
+                        ../bitmessageqt/specialaddressbehavior.py\
+                        ../plugins/qrcodeui.py
 
 FORMS = \
     ../bitmessageqt/blacklist.ui\