Attempt to fix #138. Keeping open for verification.

FlatCAMApp.py

@@ -95,7 +95,10 @@ class App(QtCore.QObject):
     # Handled by:
     #  * register_folder()
     #  * register_recent()
-    file_opened = QtCore.pyqtSignal(str, str)  # File type and filename
+    # Note: Setting the parameters to unicode does not seem
+    #       to have an effect. Then are received as Qstring
+    #       anyway.
+    file_opened = QtCore.pyqtSignal(unicode, unicode)  # File type and filename
 
     progress = QtCore.pyqtSignal(int)  # Percentage of progress
 
@@ -956,7 +959,7 @@ class App(QtCore.QObject):
         self.log.debug("   %s" % kind)
         self.log.debug("   %s" % filename)
 
-        record = {'kind': str(kind), 'filename': str(filename)}
+        record = {'kind': unicode(kind), 'filename': unicode(filename)}
         if record in self.recent:
             return
 
@@ -1682,9 +1685,9 @@ class App(QtCore.QObject):
         # The Qt methods above will return a QString which can cause problems later.
         # So far json.dump() will fail to serialize it.
         # TODO: Improve the serialization methods and remove this fix.
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Open cancelled.")
         else:
             self.worker_task.emit({'fcn': self.open_gerber,
@@ -1709,9 +1712,9 @@ class App(QtCore.QObject):
         # The Qt methods above will return a QString which can cause problems later.
         # So far json.dump() will fail to serialize it.
         # TODO: Improve the serialization methods and remove this fix.
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Open cancelled.")
         else:
             self.worker_task.emit({'fcn': self.open_excellon,
@@ -1736,9 +1739,9 @@ class App(QtCore.QObject):
         # The Qt methods above will return a QString which can cause problems later.
         # So far json.dump() will fail to serialize it.
         # TODO: Improve the serialization methods and remove this fix.
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Open cancelled.")
         else:
             self.worker_task.emit({'fcn': self.open_gcode,
@@ -1763,9 +1766,9 @@ class App(QtCore.QObject):
         # The Qt methods above will return a QString which can cause problems later.
         # So far json.dump() will fail to serialize it.
         # TODO: Improve the serialization methods and remove this fix.
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Open cancelled.")
         else:
             # self.worker_task.emit({'fcn': self.open_project,
@@ -1813,9 +1816,9 @@ class App(QtCore.QObject):
         except TypeError:
             filename = QtGui.QFileDialog.getSaveFileName(caption="Export SVG")
 
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Export SVG cancelled.")
             return
         else:
@@ -1836,9 +1839,9 @@ class App(QtCore.QObject):
         except TypeError:
             filename = QtGui.QFileDialog.getOpenFileName(caption="Import SVG")
 
-        filename = str(filename)
+        filename = unicode(filename)
 
-        if str(filename) == "":
+        if filename == "":
             self.inform.emit("Open cancelled.")
         else:
             self.worker_task.emit({'fcn': self.import_svg,
@@ -1879,6 +1882,8 @@ class App(QtCore.QObject):
         except TypeError:
             filename = QtGui.QFileDialog.getSaveFileName(caption="Save Project As ...")
 
+        filename = unicode(filename)
+
         try:
             f = open(filename, 'r')
             f.close()
@@ -2306,7 +2311,7 @@ class App(QtCore.QObject):
         self.worker_task.emit({'fcn': worker_task, 'params': [self]})
 
     def register_folder(self, filename):
-        self.defaults["last_folder"] = os.path.split(str(filename))[0]
+        self.defaults["last_folder"] = os.path.split(unicode(filename))[0]
 
     def set_progress_bar(self, percentage, text=""):
         self.ui.progress_bar.setValue(int(percentage))