diff -r fcacc15a2ef2 -r ea89bbb0c4c8 application/window.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/application/window.c	Thu Dec 10 13:43:25 2020 +0100
@@ -0,0 +1,54 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2020 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.
+ */
+
+#include "window.h"
+#include "menu.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+UiObject* window_create(void) {
+    UiObject *obj = ui_window("Note", NULL);
+    WindowData *window = ui_malloc(obj->ctx, sizeof(WindowData));
+    obj->window = window;
+    
+    UI_CTN(obj, ui_hsplitpane(obj, 3)) {
+        ui_layout_width(obj, 160);
+        window->sidebar = ui_vbox(obj);
+        UI_CTN(obj,(void)0) {
+            ui_listview_nv(obj, "notebooks", NULL, NULL, NULL);
+        }
+        
+        window->browser = ui_label(obj, "Browser");
+        
+        window->editor = ui_textarea_nv(obj, "text");
+    }
+    
+    return obj;
+}
+