Show printer state on Printers preference pane

CURA-2276

resources/qml/Preferences/MachinesPage.qml

@@ -123,7 +123,7 @@ UM.ManagementPage
             }
         }
 
-        Row
+        Grid
         {
             id: machineInfo
 
@@ -132,17 +132,71 @@ UM.ManagementPage
             anchors.left: parent.left
             anchors.right: parent.right
             spacing: UM.Theme.getSize("default_margin").height
+            rowSpacing: UM.Theme.getSize("default_lining").height
+            columns: 2
 
             visible: base.currentItem
 
+            property bool printerConnected: Cura.MachineManager.printerOutputDevices.length != 0
+            property var connectedPrinter: printerConnected ? Cura.MachineManager.printerOutputDevices[0] : null
+            property bool printerAcceptsCommands: printerConnected && Cura.MachineManager.printerOutputDevices[0].acceptsCommands
+
             Label
             {
-                text: catalog.i18nc("@label", "Type")
+                text: catalog.i18nc("@label", "Printer type:")
                 visible: base.currentItem && "definition_name" in base.currentItem.metadata
             }
             Label {
                 text: (base.currentItem && "definition_name" in base.currentItem.metadata) ? base.currentItem.metadata.definition_name : ""
             }
+            Label
+            {
+                text: catalog.i18nc("@label", "Connection:")
+                visible: base.currentItem && base.currentItem.id == Cura.MachineManager.activeMachineId
+            }
+            Label {
+                width: parent.width * 0.7
+                text: machineInfo.printerConnected ? machineInfo.connectedPrinter.connectionText : catalog.i18nc("@info:status", "The printer is not connected.")
+                visible: base.currentItem && base.currentItem.id == Cura.MachineManager.activeMachineId
+                wrapMode: Text.WordWrap
+            }
+            Label
+            {
+                text: catalog.i18nc("@label", "State:")
+                visible: base.currentItem && base.currentItem.id == Cura.MachineManager.activeMachineId && machineInfo.printerAcceptsCommands
+            }
+            Label {
+                width: parent.width * 0.7
+                text:
+                {
+                    if(!machineInfo.printerConnected || !machineInfo.printerAcceptsCommands) {
+                        return "";
+                    }
+
+                    switch(Cura.MachineManager.printerOutputDevices[0].jobState)
+                    {
+                        case "printing":
+                            return catalog.i18nc("@label:MonitorStatus", "Printing...");
+                        case "paused":
+                            return catalog.i18nc("@label:MonitorStatus", "Paused");
+                        case "pre_print":
+                            return catalog.i18nc("@label:MonitorStatus", "Preparing...");
+                        case "wait_cleanup":
+                            return catalog.i18nc("@label:MonitorStatus", "Waiting for someone to clear the build plate");
+                        case "error":
+                            return printerOutputDevice.errorText;
+                        case "maintenance":  // note sure if this jobState actually occurs in the wild
+                            return catalog.i18nc("@label:MonitorStatus", "Busy; please check the printer");
+                        case "abort":  // note sure if this jobState actually occurs in the wild
+                            return catalog.i18nc("@label:MonitorStatus", "Aborting print...");
+                        case "ready":  // ready to print or getting ready
+                        case "":  // ready to print or getting ready
+                            return catalog.i18nc("@label:MonitorStatus", "Waiting for a printjob");
+                    }
+                }
+                visible: base.currentItem && base.currentItem.id == Cura.MachineManager.activeMachineId && machineInfo.printerAcceptsCommands
+                wrapMode: Text.WordWrap
+            }
         }
 
         Column {