Merge branch 'fallback'

electrum

@@ -40,8 +40,9 @@ try:
     from lib import Wallet, WalletSynchronizer, format_satoshis, mnemonic, prompt_password
 except ImportError:
     from electrum import Wallet, WalletSynchronizer, format_satoshis, mnemonic, prompt_password
-    
+
 from decimal import Decimal
+from lib import SimpleConfig
 
 known_commands = {
     'help':'Prints this help',
@@ -101,9 +102,12 @@ protected_commands = ['payto', 'password', 'mktx', 'seed', 'import','signmessage
 
 if __name__ == '__main__':
 
+    # Load simple config class
+    simple_config = SimpleConfig()
+
     usage = "usage: %prog [options] command\nCommands: "+ (', '.join(known_commands))
     parser = optparse.OptionParser(prog=usage)
-    parser.add_option("-g", "--gui", dest="gui", default="lite", help="gui")
+    parser.add_option("-g", "--gui", dest="gui", default=simple_config.config["gui"], help="gui")
     parser.add_option("-w", "--wallet", dest="wallet_path", help="wallet path (default: electrum.dat)")
     parser.add_option("-o", "--offline", action="store_true", dest="offline", default=False, help="remain offline")
     parser.add_option("-a", "--all", action="store_true", dest="show_all", default=False, help="show all addresses")
@@ -115,6 +119,7 @@ if __name__ == '__main__':
     parser.add_option("-r", "--remote", dest="remote_url", default=None, help="URL of a remote wallet")
     options, args = parser.parse_args()
 
+
     wallet = Wallet()
     wallet.set_path(options.wallet_path)
     wallet.read()
@@ -157,17 +162,19 @@ if __name__ == '__main__':
             qtVersion = qVersion()
             if not(int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
               app = QApplication(sys.argv)
+              QMessageBox.warning(None,"Could not start Lite GUI.", "Electrum was unable to load the 'Lite GUI' because it needs Qt version >= 4.7.\nElectrum is now setup to load the Pro GUI.")
 
-              error_message = QErrorMessage()
-              error_message.setFixedSize(350,200)
-              error_message.showMessage("<p>Sorry, Electrum requires Qt >= 4.7 to run.</p><p>Check your distributions packages or download it at http://qt.nokia.com/downloads</p>")
-              app.exec_()
-              sys.exit(0)
-           
-            #use the lite version if no toolkit specified
-            try:
+              simple_config.set_key("gui", "qt")
+
+              try:
+                  import lib.gui_qt as gui
+              except ImportError:
+                  import electrum.gui_qt as gui
+            else:
+              #use the lite version if no toolkit specified
+              try:
                 import lib.gui_lite as gui
-            except ImportError:
+              except ImportError:
                 import electrum.gui_lite as gui
         else:
             sys.exit("Error: Unknown GUI: " + options.gui)

lib/__init__.py

@@ -1,3 +1,4 @@
 from wallet import Wallet, format_satoshis, prompt_password
 from interface import WalletSynchronizer
 from interface import TcpStratumInterface
+from simple_config import SimpleConfig

lib/simple_config.py

@@ -0,0 +1,38 @@
+import json
+import os
+from lib.util import user_dir
+
+class SimpleConfig:
+  default_options = {"gui": "lite"}
+
+  def set_key(self, key, value, save = True):
+    self.config[key] = value
+    if save == True:
+      self.save_config()
+
+  def save_config(self):
+    f = open(self.config_file_path(), "w+")
+    f.write(json.dumps(self.config))
+
+  def load_config(self):
+    f = open(self.config_file_path(), "r")
+    file_contents = f.read()
+    if file_contents:
+      self.config = json.loads(file_contents)
+    else:
+      self.config = self.default_options
+      self.save_config()
+  
+  def config_file_path(self):
+    return "%s" % (self.config_folder + "/config.json")
+
+  def __init__(self):
+    # Find electrum data folder
+    self.config_folder = user_dir()
+    # Read the file
+    if os.path.exists(self.config_file_path()):
+      self.load_config()
+    else:
+      self.config = self.default_options
+      self.save_config()
+        

lib/util.py

@@ -8,6 +8,16 @@ def print_error(*args):
     sys.stderr.write(" ".join(args) + "\n")
     sys.stderr.flush()
 
+def user_dir():
+    if "HOME" in os.environ:
+      return os.path.join(os.environ["HOME"], ".electrum")
+    elif "LOCALAPPDATA" in os.environ:
+      return os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
+    elif "APPDATA" in os.environ:
+      return os.path.join(os.environ["APPDATA"], "Electrum")
+    else:
+      raise BaseException("No home directory found in environment variables.")
+
 def appdata_dir():
     """Find the path to the application data directory; add an electrum folder and return path."""
     if platform.system() == "Windows":

lib/wallet.py

@@ -32,6 +32,7 @@ import ecdsa
 
 from ecdsa.util import string_to_number, number_to_string
 from util import print_error
+from util import user_dir
 
 ############ functions from pywallet ##################### 
 
@@ -365,14 +366,8 @@ class Wallet:
             return
         # Look for wallet file in the default data directory.
         # Keeps backwards compatibility.
-        if "HOME" in os.environ:
-            wallet_dir = os.path.join(os.environ["HOME"], ".electrum")
-        elif "LOCALAPPDATA" in os.environ:
-            wallet_dir = os.path.join(os.environ["LOCALAPPDATA"], "Electrum")
-        elif "APPDATA" in os.environ:
-            wallet_dir = os.path.join(os.environ["APPDATA"], "Electrum")
-        else:
-            raise BaseException("No home directory found in environment variables.")
+        wallet_dir = user_dir()
+
         # Make wallet directory if it does not yet exist.
         if not os.path.exists(wallet_dir):
             os.mkdir(wallet_dir)