from electrum.util import print_error
from urlparse import urlparse, parse_qs
+from PyQt4.QtGui import QPushButton, QMessageBox, QDialog, QVBoxLayout, QHBoxLayout, QGridLayout, QLabel, QLineEdit, QComboBox
+from PyQt4.QtCore import Qt
+
+from electrum.i18n import _
+import re
+import os
+from electrum import Transaction
+from electrum.bitcoin import MIN_RELAY_TX_FEE, is_valid
+from electrum_gui.qt.qrcodewidget import QRCodeWidget
+from electrum import bmp
+from electrum_gui.qt import HelpButton, EnterButton
+import json
try:
import zbar
except ImportError:
zbar = None
+from electrum import BasePlugin
+class Plugin(BasePlugin):
+ def fullname(self): return 'QR scans'
-def init(gui):
- if is_enabled():
- gui.set_hook('create_send_tab', create_send_tab)
- else:
- gui.unset_hook('create_send_tab', create_send_tab)
+ def description(self): return "QR Scans.\nInstall the zbar package to enable this plugin.\nOn linux, type: 'apt-get install python-zbar'"
-def get_info():
- return 'QR scans', "QR Scans.\nInstall the zbar package to enable this plugin"
+ def __init__(self, gui, name):
+ BasePlugin.__init__(self, gui, name)
+ self._is_available = self._init()
-def is_enabled():
- return is_available()
-
-def toggle(gui):
- return is_enabled()
+ def _init(self):
+ if not zbar:
+ return False
+ try:
+ proc = zbar.Processor()
+ proc.init(video_device=self.video_device())
+ except zbar.UnsupportedError:
+ return False
+ except zbar.SystemError:
+ # Cannot open video device
+ pass
+ #return False
+ return True
-def is_available():
- if not zbar:
- return False
+ def init(self):
+ self.win = self.gui.main_window
- try:
- proc = zbar.Processor()
- proc.init()
- except zbar.SystemError:
- # Cannot open video device
- return False
+ def is_available(self):
+ return self._is_available
- return True
+ def is_enabled(self):
+ return True
-def scan_qr():
- proc = zbar.Processor()
- proc.init()
- proc.visible = True
-
- while True:
+ def scan_qr_hook(self):
+ proc = zbar.Processor()
try:
- proc.process_one()
- except:
- # User closed the preview window
- return {}
-
- for r in proc.results:
- if str(r.type) != 'QRCODE':
- continue
-
- return parse_uri(r.data)
-
-def parse_uri(uri):
- if ':' not in uri:
- # It's just an address (not BIP21)
- return {'address': uri}
-
- if '//' not in uri:
- # Workaround for urlparse, it don't handle bitcoin: URI properly
- uri = uri.replace(':', '://')
-
- uri = urlparse(uri)
- result = {'address': uri.netloc}
-
- if uri.path.startswith('?'):
- params = parse_qs(uri.path[1:])
- else:
- params = parse_qs(uri.path)
-
- for k,v in params.items():
- if k in ('amount', 'label', 'message'):
- result[k] = v[0]
+ proc.init(video_device=self.video_device())
+ except zbar.SystemError, e:
+ QMessageBox.warning(self.win, _('Error'), _(e), _('OK'))
+ return
+
+ proc.visible = True
+
+ while True:
+ try:
+ proc.process_one()
+ except Exception:
+ # User closed the preview window
+ return {}
+
+ for r in proc.results:
+ if str(r.type) != 'QRCODE':
+ continue
+ return r.data
- return result
+ def video_device(self):
+ device = self.config.get("video_device", "default")
+ if device == 'default':
+ device = ''
+ return device
+ def requires_settings(self):
+ return True
-def fill_from_qr(self):
- qrcode = qrscanner.scan_qr()
- if 'address' in qrcode:
- self.payto_e.setText(qrcode['address'])
- if 'amount' in qrcode:
- self.amount_e.setText(str(qrcode['amount']))
- if 'label' in qrcode:
- self.message_e.setText(qrcode['label'])
- if 'message' in qrcode:
- self.message_e.setText("%s (%s)" % (self.message_e.text(), qrcode['message']))
-
-
-def create_send_tab(gui, grid):
- if qrscanner.is_available():
- b = QPushButton(_("Scan QR code"))
- b.clicked.connect(lambda: fill_from_qr(gui))
- grid.addWidget(b, 1, 5)
-
-
-
-if __name__ == '__main__':
- # Run some tests
-
- assert(parse_uri('1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
- {'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
-
- assert(parse_uri('bitcoin://1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
- {'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
-
- assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN') ==
- {'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
-
- assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10') ==
- {'amount': '10', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
-
- assert(parse_uri('bitcoin:1Marek48fwU7mugmSe186do2QpUkBnpzSN?amount=10&label=slush&message=Small%20tip%20to%20slush') ==
- {'amount': '10', 'label': 'slush', 'message': 'Small tip to slush', 'address': '1Marek48fwU7mugmSe186do2QpUkBnpzSN'})
-
+ def settings_widget(self, window):
+ return EnterButton(_('Settings'), self.settings_dialog)
+ def _find_system_cameras(self):
+ device_root = "/sys/class/video4linux"
+ devices = {} # Name -> device
+ if os.path.exists(device_root):
+ for device in os.listdir(device_root):
+ name = open(os.path.join(device_root, device, 'name')).read()
+ devices[name] = os.path.join("/dev",device)
+ return devices
+
+ def settings_dialog(self):
+ system_cameras = self._find_system_cameras()
+
+ d = QDialog()
+ layout = QGridLayout(d)
+ layout.addWidget(QLabel("Choose a video device:"),0,0)
+
+ # Create a combo box with the available video devices:
+ combo = QComboBox()
+
+ # on change trigger for video device selection, makes the
+ # manual device selection only appear when needed:
+ def on_change(x):
+ combo_text = str(combo.itemText(x))
+ combo_data = combo.itemData(x)
+ if combo_text == "Manually specify a device":
+ custom_device_label.setVisible(True)
+ self.video_device_edit.setVisible(True)
+ if self.config.get("video_device") == "default":
+ self.video_device_edit.setText("")
+ else:
+ self.video_device_edit.setText(self.config.get("video_device",''))
+ else:
+ custom_device_label.setVisible(False)
+ self.video_device_edit.setVisible(False)
+ self.video_device_edit.setText(combo_data.toString())
+
+ # on save trigger for the video device selection window,
+ # stores the chosen video device on close.
+ def on_save():
+ device = str(self.video_device_edit.text())
+ self.config.set_key("video_device", device)
+ d.accept()
+
+ custom_device_label = QLabel("Video device: ")
+ custom_device_label.setVisible(False)
+ layout.addWidget(custom_device_label,1,0)
+ self.video_device_edit = QLineEdit()
+ self.video_device_edit.setVisible(False)
+ layout.addWidget(self.video_device_edit, 1,1,2,2)
+ combo.currentIndexChanged.connect(on_change)
+
+ combo.addItem("Default","default")
+ for camera, device in system_cameras.items():
+ combo.addItem(camera, device)
+ combo.addItem("Manually specify a device",self.config.get("video_device"))
+
+ # Populate the previously chosen device:
+ index = combo.findData(self.config.get("video_device"))
+ combo.setCurrentIndex(index)
+
+ layout.addWidget(combo,0,1)
+
+ self.accept = QPushButton(_("Done"))
+ self.accept.clicked.connect(on_save)
+ layout.addWidget(self.accept,4,2)
+
+ if d.exec_():
+ return True
+ else:
+ return False
git://git.novaco.in / electrum-nvc.git / blobdiff