diff -r 000000000000 -r 804d8803eade ui/gtk/tree.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/tree.h	Wed Dec 09 11:32:01 2020 +0100
@@ -0,0 +1,88 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TREE_H
+#define	TREE_H
+
+#include "../ui/tree.h"
+#include "toolkit.h"
+#include "model.h"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct UiListView {
+    UiObject    *obj;
+    GtkWidget   *widget;
+    UiVar       *var;
+    UiModel     *model;
+} UiListView;
+
+typedef struct UiTreeEventData {
+    UiObject    *obj;
+    ui_callback activate;
+    ui_callback selection;
+    void        *userdata;
+} UiTreeEventData;
+    
+void* ui_strmodel_getvalue(void *elm, int column);
+
+UIWIDGET ui_listview_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata);
+UIWIDGET ui_table_var(UiObject *obj, UiVar *var, UiModel *model, UiListCallbacks cb);
+
+GtkWidget* ui_get_tree_widget(UIWIDGET widget);
+
+void ui_listview_update(UiList *list, int i);
+void ui_combobox_destroy(GtkWidget *w, UiListView *v);
+void ui_listview_destroy(GtkWidget *w, UiListView *v);
+
+void ui_listview_activate_event(
+        GtkTreeView *tree_view,
+        GtkTreePath *path,
+        GtkTreeViewColumn *column,
+        UiTreeEventData *event);
+void ui_listview_selection_event(
+        GtkTreeSelection *treeselection,
+        UiTreeEventData *event);
+UiListSelection* ui_listview_selection(
+        GtkTreeSelection *selection,
+        UiTreeEventData *event);
+int ui_tree_path_list_index(GtkTreePath *path);
+
+UIWIDGET ui_combobox_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata);
+GtkWidget* ui_create_combobox(UiObject *obj, UiListModel *model, ui_callback f, void *udata);
+void ui_combobox_change_event(GtkComboBox *widget, UiEventData *e);
+void ui_combobox_modelupdate(UiList *list, int i);
+        
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* TREE_H */
+