Initial commit

Lts/Plugins/ParticipantManagement/Gui/Common/participant_beautify_view.cpp

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+/**
+  * @RDE_HEADER@
+  * Microsoft does strange things.
+  * $Id: participant_edit_model.h 52287 2020-10-08 11:54:01Z biedziak_f $
+  * $HeadURL: svn://192.168.133.21/TDS/branches/product/features/commaster/Lts/Plugins/ParticipantManagement/Gui/Common/participant_edit_model.h $
+  * $Author: biedziak_f $
+  * Created by Mike Lennart Wille, SLTE, 2023-07-14
+  */
+
+#include <Common/participant_beautify_view.h>
+
+#include <QTreeView>
+#include <QHeaderView>
+#include <QModelIndex>
+
+
+namespace ParticipantManagement
+{
+/*
+ * Column widths are adjusted to the displayed content. Keeps all items expanded
+ * after identifying the optimal column width if 'keepExpanded' is true.
+ */
+void beautifyTreeView(QTreeView *tv, QAbstractItemModel *pModel, bool keepExpanded)
+{
+  tv->expandAll();
+
+  int colCount = pModel->columnCount(QModelIndex());
+  for (int i = 0; i < colCount; ++i)
+    tv->resizeColumnToContents(i);
+
+  tv->header()->resizeSection(0, tv->columnWidth(0) + tv->iconSize().width() + 10);
+
+  if (!keepExpanded)
+    tv->collapseAll();
+}
+} // namespace ParticipantManagement