ttransform the wall into a python console - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit c3a0c9dd360ba801f20947ff5e57b48aceb10865
DIR parent e4586ee59a3d35fde4b26cba2a7aee0e6bcae98b
HTML Author: ThomasV <thomasv@gitorious>
Date: Fri, 1 Feb 2013 18:22:36 +0100
ttransform the wall into a python console
Diffstat:
M lib/gui_qt.py | 17 +++++++++--------
A lib/qt_console.py | 179 +++++++++++++++++++++++++++++++
M lib/wallet.py | 3 +--
3 files changed, 189 insertions(+), 10 deletions(-)
---
DIR diff --git a/lib/gui_qt.py b/lib/gui_qt.py
t@@ -395,7 +395,7 @@ class ElectrumWindow(QMainWindow):
self.wallet = wallet
self.config = config
self.wallet.interface.register_callback('updated', self.update_callback)
- self.wallet.interface.register_callback('connected', self.update_callback)
+ self.wallet.interface.register_callback('banner', lambda: self.emit(QtCore.SIGNAL('banner_signal')) )
self.wallet.interface.register_callback('disconnected', self.update_callback)
self.wallet.interface.register_callback('disconnecting', self.update_callback)
t@@ -412,7 +412,7 @@ class ElectrumWindow(QMainWindow):
tabs.addTab(self.create_send_tab(), _('Send') )
tabs.addTab(self.create_receive_tab(), _('Receive') )
tabs.addTab(self.create_contacts_tab(), _('Contacts') )
- tabs.addTab(self.create_wall_tab(), _('Wall') )
+ tabs.addTab(self.create_wall_tab(), _('Console') )
tabs.setMinimumSize(600, 400)
tabs.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.setCentralWidget(tabs)
t@@ -430,7 +430,7 @@ class ElectrumWindow(QMainWindow):
QShortcut(QKeySequence("Ctrl+PgDown"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() + 1 )%tabs.count() ))
self.connect(self, QtCore.SIGNAL('updatesignal'), self.update_wallet)
- #self.connect(self, SIGNAL('editamount'), self.edit_amount)
+ self.connect(self, QtCore.SIGNAL('banner_signal'), lambda: self.console.showMessage(self.wallet.banner) )
self.history_list.setFocus(True)
self.exchanger = exchange_rate.Exchanger(self)
t@@ -496,12 +496,12 @@ class ElectrumWindow(QMainWindow):
self.status_button.setIcon( icon )
if self.wallet.up_to_date or not self.wallet.interface.is_connected:
- self.textbox.setText( self.wallet.banner )
self.update_history_tab()
self.update_receive_tab()
self.update_contacts_tab()
self.update_completions()
+
def create_quote_text(self, btc_balance):
quote_currency = self.config.get("currency", "None")
quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
t@@ -1244,11 +1244,12 @@ class ElectrumWindow(QMainWindow):
l.setCurrentItem(l.topLevelItem(0))
+
def create_wall_tab(self):
- self.textbox = textbox = QTextEdit(self)
- textbox.setFont(QFont(MONOSPACE_FONT))
- textbox.setReadOnly(True)
- return textbox
+ from qt_console import Console
+ self.console = console = Console(startup_message=self.wallet.banner)
+ console.updateNamespace({'wallet' : self.wallet, 'interface' : self.wallet.interface})
+ return console
def create_status_bar(self):
DIR diff --git a/lib/qt_console.py b/lib/qt_console.py
t@@ -0,0 +1,179 @@
+# source: http://stackoverflow.com/questions/2758159/how-to-embed-a-python-interpreter-in-a-pyqt-widget
+
+import sys, os
+import traceback
+from PyQt4 import QtCore
+from PyQt4 import QtGui
+
+class Console(QtGui.QPlainTextEdit):
+ def __init__(self, prompt='>> ', startup_message='', parent=None):
+ QtGui.QPlainTextEdit.__init__(self, parent)
+ self.prompt = prompt
+ self.history = []
+ self.namespace = {}
+ self.construct = []
+
+ self.setGeometry(50, 75, 600, 400)
+ self.setWordWrapMode(QtGui.QTextOption.WrapAnywhere)
+ self.setUndoRedoEnabled(False)
+ self.document().setDefaultFont(QtGui.QFont("monospace", 10, QtGui.QFont.Normal))
+ self.showMessage(startup_message)
+
+ def updateNamespace(self, namespace):
+ self.namespace.update(namespace)
+
+ def showMessage(self, message):
+ self.appendPlainText(message)
+ self.newPrompt()
+
+ def newPrompt(self):
+ if self.construct:
+ prompt = '.' * len(self.prompt)
+ else:
+ prompt = self.prompt
+ self.appendPlainText(prompt)
+ self.moveCursor(QtGui.QTextCursor.End)
+
+ def getCommand(self):
+ doc = self.document()
+ curr_line = unicode(doc.findBlockByLineNumber(doc.lineCount() - 1).text())
+ curr_line = curr_line.rstrip()
+ curr_line = curr_line[len(self.prompt):]
+ return curr_line
+
+ def setCommand(self, command):
+ if self.getCommand() == command:
+ return
+ self.moveCursor(QtGui.QTextCursor.End)
+ self.moveCursor(QtGui.QTextCursor.StartOfLine, QtGui.QTextCursor.KeepAnchor)
+ for i in range(len(self.prompt)):
+ self.moveCursor(QtGui.QTextCursor.Right, QtGui.QTextCursor.KeepAnchor)
+ self.textCursor().removeSelectedText()
+ self.textCursor().insertText(command)
+ self.moveCursor(QtGui.QTextCursor.End)
+
+ def getConstruct(self, command):
+ if self.construct:
+ prev_command = self.construct[-1]
+ self.construct.append(command)
+ if not prev_command and not command:
+ ret_val = '\n'.join(self.construct)
+ self.construct = []
+ return ret_val
+ else:
+ return ''
+ else:
+ if command and command[-1] == (':'):
+ self.construct.append(command)
+ return ''
+ else:
+ return command
+
+ def getHistory(self):
+ return self.history
+
+ def setHisory(self, history):
+ self.history = history
+
+ def addToHistory(self, command):
+ if command and (not self.history or self.history[-1] != command):
+ self.history.append(command)
+ self.history_index = len(self.history)
+
+ def getPrevHistoryEntry(self):
+ if self.history:
+ self.history_index = max(0, self.history_index - 1)
+ return self.history[self.history_index]
+ return ''
+
+ def getNextHistoryEntry(self):
+ if self.history:
+ hist_len = len(self.history)
+ self.history_index = min(hist_len, self.history_index + 1)
+ if self.history_index < hist_len:
+ return self.history[self.history_index]
+ return ''
+
+ def getCursorPosition(self):
+ return self.textCursor().columnNumber() - len(self.prompt)
+
+ def setCursorPosition(self, position):
+ self.moveCursor(QtGui.QTextCursor.StartOfLine)
+ for i in range(len(self.prompt) + position):
+ self.moveCursor(QtGui.QTextCursor.Right)
+
+ def runCommand(self):
+ command = self.getCommand()
+ self.addToHistory(command)
+
+ command = self.getConstruct(command)
+
+ if command:
+ tmp_stdout = sys.stdout
+
+ class stdoutProxy():
+ def __init__(self, write_func):
+ self.write_func = write_func
+ self.skip = False
+
+ def write(self, text):
+ if not self.skip:
+ stripped_text = text.rstrip('\n')
+ self.write_func(stripped_text)
+ QtCore.QCoreApplication.processEvents()
+ self.skip = not self.skip
+
+ sys.stdout = stdoutProxy(self.appendPlainText)
+ try:
+ try:
+ result = eval(command, self.namespace, self.namespace)
+ if result != None:
+ self.appendPlainText(repr(result))
+ except SyntaxError:
+ exec command in self.namespace
+ except SystemExit:
+ self.close()
+ except:
+ traceback_lines = traceback.format_exc().split('\n')
+ # Remove traceback mentioning this file, and a linebreak
+ for i in (3,2,1,-1):
+ traceback_lines.pop(i)
+ self.appendPlainText('\n'.join(traceback_lines))
+ sys.stdout = tmp_stdout
+ self.newPrompt()
+
+ def keyPressEvent(self, event):
+ if event.key() in (QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return):
+ self.runCommand()
+ return
+ if event.key() == QtCore.Qt.Key_Home:
+ self.setCursorPosition(0)
+ return
+ if event.key() == QtCore.Qt.Key_PageUp:
+ return
+ elif event.key() in (QtCore.Qt.Key_Left, QtCore.Qt.Key_Backspace):
+ if self.getCursorPosition() == 0:
+ return
+ elif event.key() == QtCore.Qt.Key_Up:
+ self.setCommand(self.getPrevHistoryEntry())
+ return
+ elif event.key() == QtCore.Qt.Key_Down:
+ self.setCommand(self.getNextHistoryEntry())
+ return
+ #elif event.key() == QtCore.Qt.Key_D and event.modifiers() == QtCore.Qt.ControlModifier:
+ # self.close()
+ super(Console, self).keyPressEvent(event)
+
+
+welcome_message = '''
+ ---------------------------------------------------------------
+ Welcome to a primitive Python interpreter.
+ ---------------------------------------------------------------
+'''
+
+if __name__ == '__main__':
+ app = QtGui.QApplication(sys.argv)
+ console = Console(startup_message=welcome_message)
+ console.updateNamespace({'myVar1' : app, 'myVar2' : 1234})
+ console.show();
+ sys.exit(app.exec_())
DIR diff --git a/lib/wallet.py b/lib/wallet.py
t@@ -1355,8 +1355,7 @@ class WalletSynchronizer(threading.Thread):
elif method == 'server.banner':
self.wallet.banner = result
- self.was_updated = True
-
+ self.interface.trigger_callback('banner')
else:
print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result) )