1 files changed, 18 insertions, 0 deletions
diff --git a/src/eventfilters.cpp b/src/eventfilters.cpp
new file mode 100644
index 00000000..6f0b0f12
--- /dev/null
+++ b/src/eventfilters.cpp
@@ -0,0 +1,18 @@
+#include "eventfilters.h"
+
+bool AOLineEditFilter::eventFilter(QObject *obj, QEvent *event)
+{
+  QLineEdit *lineEdit = qobject_cast<QLineEdit *>(obj);
+  if (event->type() == QEvent::FocusOut && lineEdit != nullptr && preserve_selection)
+  { // lost focus
+    int start = lineEdit->selectionStart();
+    int len = lineEdit->selectionLength();
+
+    if (start != -1 && len != -1)
+    {
+      lineEdit->setSelection(start, len);
+      return true;
+    }
+  }
+  return false;
+}