Bring back print job preview images

plugins/UM3NetworkPrinting/src/Models/Http/ClusterPrintJobStatus.py

@@ -2,6 +2,8 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 from typing import List, Optional, Union, Dict, Any
 
+from PyQt5.QtCore import QUrl
+
 from cura.PrinterOutput.Models.PrinterConfigurationModel import PrinterConfigurationModel
 
 from .ClusterBuildPlate import ClusterBuildPlate

plugins/UM3NetworkPrinting/src/Models/Http/ClusterPrinterStatus.py

@@ -6,6 +6,7 @@ from PyQt5.QtCore import QUrl
 
 from cura.PrinterOutput.PrinterOutputController import PrinterOutputController
 from cura.PrinterOutput.Models.PrinterOutputModel import PrinterOutputModel
+
 from .ClusterBuildPlate import ClusterBuildPlate
 from .ClusterPrintCoreConfiguration import ClusterPrintCoreConfiguration
 from ..BaseModel import BaseModel

plugins/UM3NetworkPrinting/src/Models/UM3PrintJobOutputModel.py

@@ -3,6 +3,7 @@
 from typing import List
 
 from PyQt5.QtCore import pyqtProperty, pyqtSignal
+from PyQt5.QtGui import QImage
 
 from cura.PrinterOutput.Models.PrintJobOutputModel import PrintJobOutputModel
 from cura.PrinterOutput.PrinterOutputController import PrinterOutputController
@@ -26,3 +27,8 @@ class UM3PrintJobOutputModel(PrintJobOutputModel):
             return
         self._configuration_changes = changes
         self.configurationChangesChanged.emit()
+
+    def updatePreviewImageData(self, data: bytes) -> None:
+        image = QImage()
+        image.loadFromData(data)
+        self.updatePreviewImage(image)

plugins/UM3NetworkPrinting/src/Network/ClusterApiClient.py

@@ -76,6 +76,12 @@ class ClusterApiClient:
         action = "print" if state == "resume" else state
         self._manager.put(self._createEmptyRequest(url), json.dumps({"action": action}).encode())
 
+    ## Get the preview image data of a print job.
+    def getPrintJobPreviewImage(self, print_job_uuid: str, on_finished: Callable) -> None:
+        url = f"{self.CLUSTER_API_PREFIX}/print_jobs/{print_job_uuid}/preview_image"
+        reply = self._manager.get(self._createEmptyRequest(url))
+        self._addCallback(reply, on_finished)
+
     ## We override _createEmptyRequest in order to add the user credentials.
     #  \param url: The URL to request
     #  \param content_type: The type of the body contents.
@@ -124,17 +130,23 @@ class ClusterApiClient:
                      reply: QNetworkReply,
                      on_finished: Union[Callable[[ClusterApiClientModel], Any],
                                         Callable[[List[ClusterApiClientModel]], Any]],
-                     model: Type[ClusterApiClientModel],
+                     model: Optional[Type[ClusterApiClientModel]] = None,
                      ) -> None:
         def parse() -> None:
             # Don't try to parse the reply if we didn't get one
             if reply.attribute(QNetworkRequest.HttpStatusCodeAttribute) is None:
                 return
-            status_code, response = self._parseReply(reply)
+
             self._anti_gc_callbacks.remove(parse)
-            if on_finished:
+
-                self._parseModels(response, on_finished, model)
+            # If no parse model is given, simply return the raw data in the callback.
+            if not model:
+                on_finished(reply.readAll())
                 return
+
+            # Otherwise parse the result and return the formatted data in the callback.
+            status_code, response = self._parseReply(reply)
+            self._parseModels(response, on_finished, model)
+
         self._anti_gc_callbacks.append(parse)
-        if on_finished:
         reply.finished.connect(parse)

plugins/UM3NetworkPrinting/src/Network/NetworkOutputDevice.py

@@ -2,7 +2,7 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 from typing import Optional, Dict, List, Any
 
-from PyQt5.QtGui import QDesktopServices
+from PyQt5.QtGui import QDesktopServices, QImage
 from PyQt5.QtCore import pyqtSlot, QUrl, pyqtSignal, pyqtProperty
 from PyQt5.QtNetwork import QNetworkReply
 
@@ -14,6 +14,7 @@ from UM.i18n import i18nCatalog
 from UM.Scene.SceneNode import SceneNode
 from cura.PrinterOutput.NetworkedPrinterOutputDevice import AuthState
 from cura.PrinterOutput.PrinterOutputDevice import ConnectionType
+from plugins.UM3NetworkPrinting.src.Models.UM3PrintJobOutputModel import UM3PrintJobOutputModel
 
 from .ClusterApiClient import ClusterApiClient
 from ..ExportFileJob import ExportFileJob
@@ -104,9 +105,7 @@ class NetworkOutputDevice(UltimakerNetworkedPrinterOutputDevice):
         super()._update()
         self._cluster_api.getPrinters(self._updatePrinters)
         self._cluster_api.getPrintJobs(self._updatePrintJobs)
-        # for print_job in self._print_jobs:
+        self._updatePrintJobPreviewImages()
-        #     if print_job.getPreviewImage() is None:
-        #         self.get("print_jobs/{uuid}/preview_image".format(uuid=print_job.key), on_finished=self._onGetPreviewImageFinished)
 
     ## Sync the material profiles in Cura with the printer.
     #  This gets called when connecting to a printer as well as when sending a print.
@@ -114,18 +113,6 @@ class NetworkOutputDevice(UltimakerNetworkedPrinterOutputDevice):
         job = SendMaterialJob(device=self)
         job.run()
 
-    # ## Callback for when preview image was downloaded from cluster.
-    # def _onGetPreviewImageFinished(self, reply: QNetworkReply) -> None:
-    #     reply_url = reply.url().toString()
-    #
-    #     uuid = reply_url[reply_url.find("print_jobs/")+len("print_jobs/"):reply_url.rfind("/preview_image")]
-    #
-    #     print_job = findByKey(self._print_jobs, uuid)
-    #     if print_job:
-    #         image = QImage()
-    #         image.loadFromData(reply.readAll())
-    #         print_job.updatePreviewImage(image)
-
     ## Send a print job to the cluster.
     def requestWrite(self, nodes: List[SceneNode], file_name: Optional[str] = None, limit_mimetypes: bool = False,
                      file_handler: Optional[FileHandler] = None, filter_by_machine: bool = False, **kwargs) -> None:
@@ -187,3 +174,9 @@ class NetworkOutputDevice(UltimakerNetworkedPrinterOutputDevice):
             lifetime=10
         ).show()
         self.writeError.emit()
+
+    ## Download all the images from the cluster and load their data in the print job models.
+    def _updatePrintJobPreviewImages(self):
+        for print_job in self._print_jobs:
+            if print_job.getPreviewImage() is None:
+                self._cluster_api.getPrintJobPreviewImage(print_job.key, print_job.updatePreviewImageData)

plugins/UM3NetworkPrinting/src/UltimakerNetworkedPrinterOutputDevice.py

@@ -4,6 +4,7 @@ import os
 from typing import List, Optional, Dict
 
 from PyQt5.QtCore import pyqtProperty, pyqtSignal, QObject, pyqtSlot, QUrl
+from PyQt5.QtGui import QImage
 
 from UM.Logger import Logger
 from UM.Qt.Duration import Duration, DurationFormat