--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/tree.h Wed Sep 09 18:57:52 2026 +0200
@@ -0,0 +1,80 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2026 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"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct UiTreeView UiTreeView;
+
+struct UiTreeView {
+ UiObject *obj;
+ GtkWidget *widget;
+ UiVar *var;
+ UiModel *model;
+ UiBool multiselection;
+ ui_tree_getdepthfunc getdepth;
+ void *getdepthdata;
+ ui_getvaluefunc2 getvalue;
+ void *getvaluedata;
+
+ ui_callback onactivate;
+ void *onactivatedata;
+ char *onactivate_action;
+ ui_callback onselection;
+ void *onselectiondata;
+ char *onselection_action;
+ ui_callback ondragstart;
+ void *ondragstartdata;
+ char *ondragstart_action;
+ ui_callback ondragcomplete;
+ void *ondragcompletedata;
+ char *ondragcomplete_action;
+ ui_callback ondrop;
+ void *ondropdata;
+ char *ondrop_action;
+};
+
+typedef struct UiTreeColData {
+ UiTreeView *treeview;
+ int column;
+} UiTreeColData;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* TREE_H */
+