Merge pull request #1243 from fieldOfView/feature_material_cost

Implement material cost

cura/PrintInformation.py

@@ -7,12 +7,14 @@ from UM.FlameProfiler import pyqtSlot
 from UM.Application import Application
 from UM.Qt.Duration import Duration
 from UM.Preferences import Preferences
+from UM.Settings import ContainerRegistry
 
 import cura.Settings.ExtruderManager
 
 import math
 import os.path
 import unicodedata
+import json
 
 from UM.i18n import i18nCatalog
 catalog = i18nCatalog("cura")
@@ -52,6 +54,7 @@ class PrintInformation(QObject):
 
         self._material_lengths = []
         self._material_weights = []
+        self._material_costs = []
 
         self._pre_sliced = False
 
@@ -65,6 +68,12 @@ class PrintInformation(QObject):
         Application.getInstance().globalContainerStackChanged.connect(self._setAbbreviatedMachineName)
         Application.getInstance().fileLoaded.connect(self.setJobName)
 
+        Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
+
+        self._active_material_container = None
+        Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._onActiveMaterialChanged)
+        self._onActiveMaterialChanged()
+
     currentPrintTimeChanged = pyqtSignal()
 
     preSlicedChanged = pyqtSignal()
@@ -93,28 +102,82 @@ class PrintInformation(QObject):
     def materialWeights(self):
         return self._material_weights
 
+    materialCostsChanged = pyqtSignal()
+
+    @pyqtProperty("QVariantList", notify = materialCostsChanged)
+    def materialCosts(self):
+        return self._material_costs
+
     def _onPrintDurationMessage(self, total_time, material_amounts):
         self._current_print_time.setDuration(total_time)
         self.currentPrintTimeChanged.emit()
 
+        self._material_amounts = material_amounts
+        self._calculateInformation()
+
+    def _calculateInformation(self):
         # 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_lengths = []
         self._material_weights = []
+        self._material_costs = []
+
+        material_preference_values = json.loads(Preferences.getInstance().getValue("cura/material_settings"))
+
         extruder_stacks = list(cura.Settings.ExtruderManager.getInstance().getMachineExtruders(Application.getInstance().getGlobalContainerStack().getId()))
-        for index, amount in enumerate(material_amounts):
+        for index, amount in enumerate(self._material_amounts):
             ## Find the right extruder stack. As the list isn't sorted because it's a annoying generator, we do some
             #  list comprehension filtering to solve this for us.
+            material = None
             if extruder_stacks:  # Multi extrusion machine
                 extruder_stack = [extruder for extruder in extruder_stacks if extruder.getMetaDataEntry("position") == str(index)][0]
                 density = extruder_stack.getMetaDataEntry("properties", {}).get("density", 0)
+                material = extruder_stack.findContainer({"type": "material"})
             else:  # Machine with no extruder stacks
                 density = Application.getInstance().getGlobalContainerStack().getMetaDataEntry("properties", {}).get("density", 0)
+                material = Application.getInstance().getGlobalContainerStack().findContainer({"type": "material"})
 
-            self._material_weights.append(float(amount) * float(density) / 1000)
+            weight = float(amount) * float(density) / 1000
+            cost = 0
+            if material:
+                material_guid = material.getMetaDataEntry("GUID")
+                if material_guid in material_preference_values:
+                    material_values = material_preference_values[material_guid]
+
+                    weight_per_spool = float(material_values["spool_weight"] if material_values and "spool_weight" in material_values else 0)
+                    cost_per_spool = float(material_values["spool_cost"] if material_values and "spool_cost" in material_values else 0)
+
+                    if weight_per_spool != 0:
+                        cost = cost_per_spool * weight / weight_per_spool
+                    else:
+                        cost = 0
+
+            self._material_weights.append(weight)
             self._material_lengths.append(round((amount / (math.pi * r ** 2)) / 1000, 2))
+            self._material_costs.append(cost)
+
         self.materialLengthsChanged.emit()
         self.materialWeightsChanged.emit()
+        self.materialCostsChanged.emit()
+
+    def _onPreferencesChanged(self, preference):
+        if preference != "cura/material_settings":
+            return
+
+        self._calculateInformation()
+
+    def _onActiveMaterialChanged(self):
+        if self._active_material_container:
+            self._active_material_container.metaDataChanged.disconnect(self._onMaterialMetaDataChanged)
+
+        active_material_id = Application.getInstance().getMachineManager().activeMaterialId
+        self._active_material_container = ContainerRegistry.getInstance().findInstanceContainers(id=active_material_id)[0]
+
+        if self._active_material_container:
+            self._active_material_container.metaDataChanged.connect(self._onMaterialMetaDataChanged)
+
+    def _onMaterialMetaDataChanged(self):
+        self._calculateInformation()
 
     @pyqtSlot(str)
     def setJobName(self, name):