We now recieve material estimation per extruder

CURA-1687

cura/PrintInformation.py

@@ -44,7 +44,7 @@ class PrintInformation(QObject):
 
         self._current_print_time = Duration(None, self)
 
-        self._material_amount = -1
+        self._material_amounts = []
 
         self._backend = Application.getInstance().getBackend()
         if self._backend:
@@ -62,21 +62,22 @@ class PrintInformation(QObject):
     def currentPrintTime(self):
         return self._current_print_time
 
-    materialAmountChanged = pyqtSignal()
+    materialAmountsChanged = pyqtSignal()
 
-    @pyqtProperty(float, notify = materialAmountChanged)
-    def materialAmount(self):
-        return self._material_amount
+    @pyqtProperty("QVariantList", notify = materialAmountsChanged)
+    def materialAmounts(self):
+        return self._material_amounts
 
-    def _onPrintDurationMessage(self, time, amount):
-        #if self._slice_pass == self.SlicePass.CurrentSettings:
-        self._current_print_time.setDuration(time)
+    def _onPrintDurationMessage(self, total_time, material_amounts):
+        self._current_print_time.setDuration(total_time)
         self.currentPrintTimeChanged.emit()
 
         # Material amount is sent as an amount of mm^3, so calculate length from that
         r = Application.getInstance().getGlobalContainerStack().getProperty("material_diameter", "value") / 2
-        self._material_amount = round((amount / (math.pi * r ** 2)) / 1000, 2)
-        self.materialAmountChanged.emit()
+        self._material_amounts = []
+        for amount in material_amounts:
+            self._material_amounts.append(round((amount / (math.pi * r ** 2)) / 1000, 2))
+        self.materialAmountsChanged.emit()
 
     @pyqtSlot(str)
     def setJobName(self, name):

plugins/CuraEngineBackend/Cura.proto

@@ -65,10 +65,15 @@ message GCodeLayer {
     bytes data = 2;
 }
 
-message ObjectPrintTime { // The print time for the whole print and material estimates for the first extruder
+
+message PrintTimeMaterialEstimates { // The print time for the whole print and material estimates for the extruder
+    float time = 1; // Total time estimate
+    repeated MaterialEstimates materialEstimates = 2; // materialEstimates data
+}
+
+message MaterialEstimates {
     int64 id = 1;
-    float time = 2; // Total time estimate
-    float material_amount = 3; // material used in the first extruder
+    float material_amount = 2; // material used in the extruder
 }
 
 message SettingList {

plugins/CuraEngineBackend/CuraEngineBackend.py

@@ -79,7 +79,8 @@ class CuraEngineBackend(Backend):
         self._message_handlers["cura.proto.Progress"] = self._onProgressMessage
         self._message_handlers["cura.proto.GCodeLayer"] = self._onGCodeLayerMessage
         self._message_handlers["cura.proto.GCodePrefix"] = self._onGCodePrefixMessage
-        self._message_handlers["cura.proto.ObjectPrintTime"] = self._onObjectPrintTimeMessage
+        self._message_handlers["cura.proto.PrintTimeMaterialEstimates"] = self._onPrintTimeMaterialEstimates
+        #self._message_handlers["cura.proto.ObjectPrintTime"] = self._onObjectPrintTimeMessage
         self._message_handlers["cura.proto.SlicingFinished"] = self._onSlicingFinishedMessage
 
         self._start_slice_job = None
@@ -294,9 +295,12 @@ class CuraEngineBackend(Backend):
     ##  Called when a print time message is received from the engine.
     #
     #   \param message The protobuf message containing the print time and
-    #   material amount.
-    def _onObjectPrintTimeMessage(self, message):
-        self.printDurationMessage.emit(message.time, message.material_amount)
+    #   material amount per extruder
+    def _onPrintTimeMaterialEstimates(self, message):
+        material_amounts = []
+        for index in range(message.repeatedMessageCount("materialEstimates")):
+            material_amounts.append(message.getRepeatedMessage("materialEstimates", index).material_amount)
+        self.printDurationMessage.emit(message.time, material_amounts)
 
     ##  Creates a new socket connection.
     def _createSocket(self):

plugins/SliceInfoPlugin/SliceInfo.py

@@ -54,7 +54,7 @@ class SliceInfo(Extension):
         # Get total material used (in mm^3)
         print_information = Application.getInstance().getPrintInformation()
         material_radius = 0.5 * global_container_stack.getProperty("material_diameter", "value")
-        material_used = math.pi * material_radius * material_radius * print_information.materialAmount #Volume of material used
+        material_used = math.pi * material_radius * material_radius * print_information.materialAmounts #Volume of material used
 
         # Get model information (bounding boxes, hashes and transformation matrix)
         models_info = []

resources/qml/JobSpecs.qml

@@ -24,7 +24,7 @@ Rectangle {
     UM.I18nCatalog { id: catalog; name:"cura"}
 
     property variant printDuration: PrintInformation.currentPrintTime
-    property real printMaterialAmount: PrintInformation.materialAmount
+    property real printMaterialAmount: PrintInformation.materialAmounts[0]
 
     height: childrenRect.height
     color: "transparent"