fix some warnings

widgets/propertyeditor.cpp

@@ -249,11 +249,11 @@ void Delegate::changedFlag() {
 	int row = 0;
 	qulonglong val = 0;
 	QList<QModelIndex> chldr;
-	mi = p.child(row, 1);
+	mi = model->index(row, 1, p);
 	while (mi.isValid()) {
 		chldr << mi;
 		model->setData(mi, !mi.data(Qt::UserRole + 4).toBool(), Qt::UserRole + 4);
-		mi = p.child(++row, 1);
+		mi = model->index(++row, 1, p);
 	}
 	bool cc = cmi.data(Qt::UserRole + 3).toBool();
 	qulonglong cv = cmi.data(Qt::UserRole).toULongLong();
@@ -377,7 +377,7 @@ void PropertyEditor::rebuild() {
 		setItemBackColor(tli, Qt::darkGray);
 		setItemForeColor(tli, Qt::white);
 		addTopLevelItem(tli);
-		setFirstItemColumnSpanned(tli, true);
+		tli->setFirstColumnSpanned(true);
 		tli->setExpanded(true);
 		for (int i = ps; i < pe; ++i) {
 			props << o->property(i);