Merge branch '15.06'

* 15.06:
  Fix poor visibility of MessageStack against grid
  Fix USB printer detection and reconnect after firmware update on MacOSX
  Correct the icon for the Cura .desktop file
  Bump version
  support defaults to ZigZag instead of Lines
  Fix the platform activity check

cura/CuraApplication.py

@@ -79,6 +79,7 @@ class CuraApplication(QtApplication):
         self._platform_activity = False
 
         self.activeMachineChanged.connect(self._onActiveMachineChanged)
+        self.getController().getScene().sceneChanged.connect(self.updatePlatformActivity)
 
         Preferences.getInstance().addPreference("cura/active_machine", "")
         Preferences.getInstance().addPreference("cura/active_mode", "simple")
@@ -214,24 +215,15 @@ class CuraApplication(QtApplication):
     def getPlatformActivity(self):
         return self._platform_activity
 
-    @pyqtSlot(bool)
-    def setPlatformActivity(self, activity):
-        ##Sets the _platform_activity variable on true or false depending on whether there is a mesh on the platform
-        if activity == True:
-            self._platform_activity = activity
-        elif activity == False:
-            nodes = []
-            for node in DepthFirstIterator(self.getController().getScene().getRoot()):
-                if type(node) is not SceneNode or not node.getMeshData():
-                    continue
-                nodes.append(node)
-            i = 0
-            for node in nodes:
-                if not node.getMeshData():
-                    continue
-                i += 1
-            if i <= 1: ## i == 0 when the meshes are removed using the deleteAll function; i == 1 when the last remaining mesh is removed using the deleteObject function
-                self._platform_activity = activity
+    def updatePlatformActivity(self, node = None):
+        count = 0
+        for node in DepthFirstIterator(self.getController().getScene().getRoot()):
+            if type(node) is not SceneNode or not node.getMeshData():
+                continue
+
+            count += 1
+
+        self._platform_activity = True if count > 0 else False
         self.activityChanged.emit()
 
     ##  Remove an object from the scene
@@ -252,8 +244,7 @@ class CuraApplication(QtApplication):
                         group_node = group_node.getParent()
                     op = RemoveSceneNodeOperation(group_node)
             op.push()
-            self.setPlatformActivity(False)
-    
+
     ##  Create a number of copies of existing object.
     @pyqtSlot("quint64", int)
     def multiplyObject(self, object_id, count):
@@ -300,8 +291,7 @@ class CuraApplication(QtApplication):
                 op.addOperation(RemoveSceneNodeOperation(node))
 
             op.push()
-        self.setPlatformActivity(False)
-    
+
     ## Reset all translation on nodes with mesh data. 
     @pyqtSlot()
     def resetAllTranslation(self):

plugins/USBPrinting/PrinterConnection.py

@@ -60,8 +60,8 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
         self._listen_thread.daemon = True
 
         self._update_firmware_thread = threading.Thread(target= self._updateFirmware)
-        self._update_firmware_thread.demon = True
-
+        self._update_firmware_thread.deamon = True
+        
         self._heatup_wait_start_time = time.time()
 
         ## Queue for commands that need to be send. Used when command is sent when a print is active.
@@ -105,6 +105,7 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
 
         self._firmware_file_name = None
 
+<<<<<<< HEAD
         self._control_view = None
 
     onError = pyqtSignal()
@@ -128,6 +129,12 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
     def error(self):
         return self._error_state
 
+=======
+        self.firmwareUpdateComplete.connect(self._onFirmwareUpdateComplete)
+
+    firmwareUpdateComplete = Signal()
+        
+>>>>>>> 15.06
     # TODO: Might need to add check that extruders can not be changed when it started printing or loading these settings from settings object    
     def setNumExtuders(self, num):
         self._extruder_count = num
@@ -209,6 +216,8 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
 
         self.setProgress(100, 100)
 
+        self.firmwareUpdateComplete.emit()
+
     ##  Upload new firmware to machine
     #   \param filename full path of firmware file to be uploaded
     def updateFirmware(self, file_name):
@@ -233,9 +242,18 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
             self._is_connecting = False
             Logger.log("i", "Could not establish connection on %s, unknown reasons.", self._serial_port)
             return
+<<<<<<< HEAD
 
         # If the programmer connected, we know its an atmega based version. Not all that usefull, but it does give some debugging information.
         for baud_rate in self._getBaudrateList(): # Cycle all baud rates (auto detect)
+=======
+        
+        Logger.log("d", "Starting baud rate detection...")
+        # If the programmer connected, we know its an atmega based version. Not all that usefull, but it does give some debugging information.
+        for baud_rate in self._getBaudrateList(): # Cycle all baud rates (auto detect)
+            Logger.log("d", "Trying baud rate %s", baud_rate)
+
+>>>>>>> 15.06
             if self._serial is None:
                 try:
                     self._serial = serial.Serial(str(self._serial_port), baud_rate, timeout = 3, writeTimeout = 10000)
@@ -255,9 +273,12 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
                 if line is None:
                     self.setIsConnected(False) # Something went wrong with reading, could be that close was called.
                     return
+<<<<<<< HEAD
+=======
+
+>>>>>>> 15.06
                 if b"T:" in line:
                     self._serial.timeout = 0.5
-                    self._sendCommand("M105")
                     sucesfull_responses += 1
                     if sucesfull_responses >= self._required_responses_auto_baud:
                         self._serial.timeout = 2 #Reset serial timeout
@@ -265,6 +286,8 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
                         Logger.log("i", "Established printer connection on port %s" % self._serial_port)
                         return 
 
+                self._sendCommand("M105") # Send M105 as long as we are listening, otherwise we end up in an undefined state
+
         Logger.log("e", "Baud rate detection for %s failed", self._serial_port)
         self.close() # Unable to connect, wrap up.
         self.setIsConnected(False)
@@ -294,9 +317,17 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
         if self._connect_thread.isAlive():
             try:
                 self._connect_thread.join()
+<<<<<<< HEAD
             except Exception as e:
                 pass # This should work, but it does fail sometimes for some reason
 
+=======
+            except:
+                pass
+
+        self._connect_thread = threading.Thread(target=self._connect)
+        self._connect_thread.daemon = True
+>>>>>>> 15.06
         if self._serial is not None:
             self.setIsConnected(False)
             try:
@@ -305,6 +336,11 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
                 pass
             self._serial.close()
 
+<<<<<<< HEAD
+=======
+        self._listen_thread = threading.Thread(target=self._listen)
+        self._listen_thread.daemon = True
+>>>>>>> 15.06
         self._serial = None
 
     def isConnected(self):
@@ -540,3 +576,10 @@ class PrinterConnection(OutputDevice, QObject, SignalEmitter):
     def _getBaudrateList(self):
         ret = [250000, 230400, 115200, 57600, 38400, 19200, 9600]
         return ret
+
+    def _onFirmwareUpdateComplete(self):
+        self._update_firmware_thread.join()
+        self._update_firmware_thread = threading.Thread(target= self._updateFirmware)
+        self._update_firmware_thread.deamon = True
+
+        self.connect()

resources/qml/Cura.qml

@@ -481,7 +481,6 @@ UM.MainWindow {
         onAccepted:
         {
             UM.MeshFileHandler.readLocalFile(fileUrl)
-            Printer.setPlatformActivity(true)
         }
     }