Qt5: [skip ci] 'void QTextEdit::setTabStopWidth(int)' is deprecated [-Wdeprecated-declarations]

src/Gui/DlgEditor.ui

@@ -71,9 +71,6 @@
       </item>
       <item row="4" column="1" rowspan="3" colspan="2">
        <widget class="QTextEdit" name="textEdit1">
-        <property name="tabStopWidth">
-         <number>40</number>
-        </property>
        </widget>
       </item>
       <item row="0" column="2">

src/Gui/DlgEditorImp.cpp

@@ -61,6 +61,12 @@ DlgSettingsEditorImp::DlgSettingsEditorImp( QWidget* parent )
     ui->setupUi(this);
     ui->EnableFolding->hide(); // Switch off until we have an editor with folding
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
+    ui->textEdit1->setTabStopWidth(40);
+#else
+    ui->textEdit1->setTabStopDistance(40.0);
+#endif
+
     d = new DlgSettingsEditorP();
     QColor col;
     col = Qt::black;