From 0b3cbf57875fd692e4ba0b336fefa4bee1ed00dc Mon Sep 17 00:00:00 2001
From: Simeon Simeonov
Date: Mon, 26 Feb 2018 11:23:00 +0100
Subject: Initial commit for sylpheed 3.7.0

---
 src/undo.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/undo.h

(limited to 'src/undo.h')

diff --git a/src/undo.h b/src/undo.h
new file mode 100644
index 0000000..1376d1e
--- /dev/null
+++ b/src/undo.h
@@ -0,0 +1,80 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2001 Hiroyuki Yamamoto
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* code ported from gedit */
+
+#ifndef __UNDO_H__
+#define __UNDO_H__
+
+#include <glib.h>
+#include <gtk/gtktextview.h>
+#include <gtk/gtkitemfactory.h>
+
+typedef enum 
+{
+	UNDO_ACTION_INSERT,
+	UNDO_ACTION_DELETE,
+	UNDO_ACTION_REPLACE_INSERT,
+	UNDO_ACTION_REPLACE_DELETE,
+} UndoAction;
+
+typedef enum 
+{
+	UNDO_STATE_TRUE,
+	UNDO_STATE_FALSE,
+	UNDO_STATE_UNCHANGED,
+	UNDO_STATE_REFRESH,
+} UndoState;
+
+typedef struct _UndoMain UndoMain;
+
+typedef void (*UndoChangeStateFunc)	(UndoMain	*undostruct,
+					 gint		 undo_state,
+					 gint		 redo_state,
+					 gpointer	 data);
+
+struct _UndoMain 
+{
+	GtkTextView *textview;
+
+	GList *undo;
+	GList *redo;
+
+	UndoChangeStateFunc change_state_func;
+	gpointer change_state_data;
+
+	gboolean undo_state : 1;
+	gboolean redo_state : 1;
+
+	gint paste;
+};
+
+UndoMain *undo_init		(GtkWidget		*text);
+void undo_destroy		(UndoMain		*undostruct);
+
+void undo_set_change_state_func	(UndoMain		*undostruct,
+				 UndoChangeStateFunc	 func,
+				 gpointer		 data);
+
+void undo_undo			(UndoMain		*undostruct); 
+void undo_redo			(UndoMain		*undostruct); 
+void undo_block			(UndoMain		*undostruct);
+void undo_unblock		(UndoMain		*undostruct);
+
+#endif /* __UNDO_H__ */
-- 
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