Gui: Disable controls when selecting origin in transform dialog

src/Gui/TaskCSysDragger.cpp

@@ -406,6 +406,8 @@ void TaskTransform::setSelectionMode(SelectionMode mode)
     }
 
     selectionMode = mode;
+
+    updateSpinBoxesReadOnlyStatus();
 }
 
 TaskTransform::SelectionMode TaskTransform::getSelectionMode() const
@@ -592,6 +594,24 @@ void TaskTransform::updateTransformOrigin()
     updateDraggerLabels();
 }
 
+void TaskTransform::updateSpinBoxesReadOnlyStatus() const
+{
+    const bool isReadOnly = selectionMode != SelectionMode::None;
+
+    const auto controls = {
+        ui->xPositionSpinBox,
+        ui->yPositionSpinBox,
+        ui->zPositionSpinBox,
+        ui->xRotationSpinBox,
+        ui->yRotationSpinBox,
+        ui->zRotationSpinBox,
+    };
+
+    for (const auto& control : controls) {
+        control->setReadOnly(isReadOnly);
+    }
+}
+
 void TaskTransform::resetReferencePlacement()
 {
     referencePlacement = vp->getDraggerPlacement();

src/Gui/TaskCSysDragger.h

@@ -118,6 +118,7 @@ private:
     void updateInputLabels() const;
     void updateIncrements() const;
     void updateTransformOrigin();
+    void updateSpinBoxesReadOnlyStatus() const;
 
     void resetReferencePlacement();
     void resetReferenceRotation();