Add PaintTool problem workaround

Author: meteozond

SidebarGUIPlugin.py

@@ -5,6 +5,7 @@
 from UM.Application import Application
 from UM.Extension import Extension
 from UM.Logger import Logger
+from PyQt6.QtCore import QTimer
 
 from .SidebarGUIProxy import SidebarGUIProxy
 
@@ -79,6 +80,12 @@ def _onEngineCreated(self):
 
     def _onStageChanged(self):
         active_stage_id = self._controller.getActiveStage().getPluginId()
+        active_view = self._controller.getActiveView()
+
+        # Don't change view if PaintTool is active
+        if active_view and active_view.getPluginId() == "PaintTool":
+            return
+
         view_id = ""
 
         if active_stage_id == "PrepareStage":
@@ -102,16 +109,21 @@ def _onViewChanged(self):
         active_stage_id = active_stage.getPluginId()
         active_view_id = active_view.getPluginId()
 
+        # Force machine settings update when PaintTool is activated to fix rendering issue
+        if active_view_id == "PaintTool":
+            QTimer.singleShot(0, lambda: Application.getInstance().getMachineManager().forceUpdateAllSettings())
+
         if (
             active_stage_id == "SmartSlicePlugin"
         ):  # SmartSlicePlugin view is provided by the SmartSlicePlugin plugin
             return
 
         if active_stage_id == "PrepareStage":
-            if active_view_id not in ["SolidView", "XRayView"]:
+            if active_view_id not in ["SolidView", "XRayView", "PaintTool"]:
                 self._controller.setActiveView("SolidView")
                 return
-            self._prepare_stage_view_id = active_view_id
+            if active_view_id in ["SolidView", "XRayView"]:
+                self._prepare_stage_view_id = active_view_id
         elif active_stage_id == "MonitorStage":
             return
         elif active_stage_id == "PreviewStage":
@@ -126,6 +138,6 @@ def _onViewChanged(self):
         ]:  # FastView is provided by the RAWMouse plugin
             if active_stage_id != "PreviewStage":
                 self._controller.setActiveStage("PreviewStage")
-        else:
+        elif active_view_id not in ["PaintTool"]:
             if active_stage_id != "PrepareStage":
                 self._controller.setActiveStage("PrepareStage")