diff -r 000000000000 -r 2483f517c562 ui/gtk/toolkit.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/toolkit.h	Sun Jan 21 16:30:18 2024 +0100
@@ -0,0 +1,90 @@
+/*
+ * 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 TOOLKIT_H
+#define	TOOLKIT_H
+
+#include "../ui/toolkit.h"
+#include "../common/context.h"
+#include "../common/object.h"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+    
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
+typedef struct UiEventData {
+    UiObject    *obj;
+    ui_callback callback;
+    void        *userdata;
+    int         value;
+} UiEventData;
+
+typedef struct UiVarEventData {
+    UiObject   *obj;
+    UiVar     *var;
+    UiObserver **observers;
+} UiVarEventData;
+
+
+typedef struct UiJob {
+    UiObject      *obj;
+    ui_threadfunc job_func;
+    void          *job_data;
+    ui_callback   finish_callback;
+    void          *finish_data;
+} UiJob;
+
+struct UiSelection {
+    GtkSelectionData *data;
+};
+
+typedef enum UiOrientation UiOrientation;
+enum UiOrientation { UI_HORIZONTAL = 0, UI_VERTICAL };
+
+#ifndef UI_GTK2
+void ui_app_quit();
+GtkApplication* ui_get_application();
+#endif
+
+int ui_get_scalefactor();
+
+void ui_destroy_userdata(GtkWidget *object, void *userdata);
+void ui_destroy_vardata(GtkWidget *object, UiVarEventData *data);
+void ui_destroy_boundvar(UiContext *ctx, UiVar *var);
+
+void ui_set_active_window(UiObject *obj);
+UiObject *ui_get_active_window();
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* TOOLKIT_H */
+