Add a dialog that shows the engine log

qml/EngineLog.qml

@@ -0,0 +1,41 @@
+import QtQuick 2.2
+import QtQuick.Dialogs 1.2
+import QtQuick.Controls 1.2
+import QtQuick.Layouts 1.1
+
+Dialog {
+    id: dialog
+
+    title: qsTr("Cura Engine Log");
+
+    standardButtons: StandardButton.Close;
+    modality: Qt.NonModal;
+
+    width: 640;
+
+    TextArea {
+        id: textArea
+
+        anchors.left: parent.left;
+        anchors.right: parent.right;
+
+        implicitHeight: 480;
+    }
+
+    onVisibleChanged: {
+        if(visible) {
+            textArea.text = Printer.getEngineLog();
+            updateTimer.start();
+        } else {
+            updateTimer.stop();
+        }
+    }
+
+    Timer {
+        id: updateTimer;
+        interval: 1000;
+        running: false;
+        repeat: true;
+        onTriggered: textArea.text = Printer.getEngineLog();
+    }
+}