From 21e8dd151ef26801ce006f326ff664eb1cb2a616 Mon Sep 17 00:00:00 2001
From: fieldOfView <aldo@fieldofview.com>
Date: Tue, 31 May 2016 15:48:08 +0200
Subject: [PATCH] Prevent removing the last printer, disable Activate button
 for current active printer

Fixes CURA-1631
---
 resources/qml/MachinesPage.qml | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/resources/qml/MachinesPage.qml b/resources/qml/MachinesPage.qml
index 8c7a2c521d..00ebcfc0af 100644
--- a/resources/qml/MachinesPage.qml
+++ b/resources/qml/MachinesPage.qml
@@ -12,11 +12,9 @@ UM.ManagementPage
     id: base;
 
     title: catalog.i18nc("@title:tab", "Printers");
-    property int numInstances: model.rowCount();
     model: UM.ContainerStacksModel
     {
         filter: {"type": "machine"}
-        onDataChanged: numInstances = model.rowCount()
     }
 
     onAddObject: Printer.requestAddPrinter()
@@ -24,9 +22,9 @@ UM.ManagementPage
     onRenameObject: renameDialog.open();
     onActivateObject: Cura.MachineManager.setActiveMachine(base.currentItem.id)
 
-    removeEnabled: base.currentItem != null && numInstances > 1
-    renameEnabled: base.currentItem != null && numInstances > 0
-    activateEnabled: base.currentItem != null
+    removeEnabled: base.currentItem != null && model.rowCount() > 1
+    renameEnabled: base.currentItem != null
+    activateEnabled: base.currentItem != null && base.currentItem.id != Cura.MachineManager.activeMachineId
 
     Flow
     {