diff -r 000000000000 -r 2483f517c562 ui/gtk/text.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/text.h	Sun Jan 21 16:30:18 2024 +0100
@@ -0,0 +1,118 @@
+/*
+ * 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 TEXT_H
+#define	TEXT_H
+
+#include "../ui/text.h"
+#include "toolkit.h"
+#include <cx/linked_list.h>
+#include "../common/context.h"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#define UI_TEXTBUF_INSERT 0
+#define UI_TEXTBUF_DELETE 1
+    
+typedef struct UiTextBufOp UiTextBufOp;
+struct UiTextBufOp {
+    UiTextBufOp *prev;
+    UiTextBufOp *next;
+    int  type; // UI_TEXTBUF_INSERT, UI_TEXTBUF_DELETE
+    int  start;
+    int  end;
+    int  len;
+    char *text;
+};
+
+typedef struct UiUndoMgr {
+    UiTextBufOp  *begin;
+    UiTextBufOp  *end;
+    UiTextBufOp  *cur;
+    int          length;
+    int          event;
+} UiUndoMgr;
+
+typedef struct UiTextArea {
+    UiContext *ctx;
+    UiVar    *var;
+    int       last_selection_state;
+} UiTextArea;
+
+typedef struct UiTextField {
+    UiContext *ctx;
+    UiVar    *var;
+    // TODO: validatefunc
+} UiTextField;
+
+UIWIDGET ui_textarea_var(UiObject *obj, UiVar *var);
+void ui_textarea_destroy(GtkWidget *object, UiTextArea *textarea);
+
+char* ui_textarea_get(UiText *text);
+void ui_textarea_set(UiText *text, char *str);
+char* ui_textarea_getsubstr(UiText *text, int begin, int end);
+void ui_textarea_insert(UiText *text, int pos, char *str);
+void ui_textarea_setposition(UiText *text, int pos);
+int ui_textarea_position(UiText *text);
+void ui_textarea_selection(UiText *text, int *begin, int *end);
+int ui_textarea_length(UiText *text);
+void ui_textarea_remove(UiText *text, int begin, int end);
+
+void ui_textarea_realize_event(GtkWidget *widget, gpointer data);
+void ui_textbuf_changed(GtkTextBuffer *textbuffer, UiTextArea *textarea);
+
+void ui_textbuf_insert(
+        GtkTextBuffer *textbuffer,
+        GtkTextIter *location,
+        char *text,
+        int len,
+        void *data);
+void ui_textbuf_delete(
+        GtkTextBuffer *textbuffer,
+        GtkTextIter *start,
+        GtkTextIter *end,
+        void *data);
+UiUndoMgr* ui_create_undomgr();
+void ui_destroy_undomgr(UiUndoMgr *mgr);
+void ui_free_textbuf_op(UiTextBufOp *op);
+int ui_check_insertstr(char *oldstr, int oldlen, char *newstr, int newlen);
+
+void ui_textfield_destroy(GtkWidget *object, UiTextField *textfield);
+void ui_textfield_changed(GtkEditable *editable, UiTextField *textfield);
+
+char* ui_textfield_get(UiString *str);
+void ui_textfield_set(UiString *str, char *value);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* TEXT_H */
+