From 47d455dd55be855e4cc691c32f687f723d9247ee Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 kcoloredit/editablestreamhistory.h | 107 +++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 kcoloredit/editablestreamhistory.h

(limited to 'kcoloredit/editablestreamhistory.h')

diff --git a/kcoloredit/editablestreamhistory.h b/kcoloredit/editablestreamhistory.h
new file mode 100644
index 00000000..9fe59d99
--- /dev/null
+++ b/kcoloredit/editablestreamhistory.h
@@ -0,0 +1,107 @@
+/***************************************************************************
+                          editablestreamhistory.h  -  description
+                             -------------------
+    begin                : Sun Jul 9 2000
+    copyright            : (C) 2000 by Artur Rataj
+    email                : art@zeus.polsl.gliwice.pl
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef EDITABLESTREAMHISTORY_H
+#define EDITABLESTREAMHISTORY_H
+
+/** A template class adding undo/redo history for EDITABLE_STREAM paste and cut
+  * methods
+  * @author Artur Rataj
+  */
+template <class EDITABLE_STREAM> class EditableStreamHistory {
+public:
+	/** Constructs the class with stream as an EDITABLE_STREAM and
+	 *  a given number of undo levels
+	 */
+	EditableStreamHistory(EDITABLE_STREAM* stream, const int undoLevels);
+	~EditableStreamHistory();
+	/** Cuts a stream at index, of length length.
+	 *  Uses undo/redo history.
+	 *  @return A stream that has been cut out
+	 */
+	EDITABLE_STREAM cut(const int index, const int length);
+	/** Pastes a stream at index. Uses undo/redo history */
+	void paste(const int index, EDITABLE_STREAM& pasteStream);
+	/** Replaces a stream at index. Uses undo/redo history */
+	void replace(const int index, EDITABLE_STREAM& replaceStream);
+	/** @return Whether undo possible */
+	bool undoPossible();
+	/** @return Whether redo possible */
+	bool redoPossible();
+	/** Undoes if possible */
+	void undo();
+	/** Redoes if possible */
+	void redo();
+	/** @return A pointer to editableStream */
+	EDITABLE_STREAM* editableStream();
+
+protected:
+	/** An editable stream */
+	EDITABLE_STREAM* m_editableStream;
+	/** A number of undo levels */
+	int m_undoLevels;
+};
+
+template <class EDITABLE_STREAM> EditableStreamHistory<EDITABLE_STREAM>::
+	EditableStreamHistory(EDITABLE_STREAM* stream, const int undoLevels) {
+	m_editableStream = stream;
+	m_undoLevels = undoLevels;
+}
+template <class EDITABLE_STREAM> EditableStreamHistory<EDITABLE_STREAM>::~EditableStreamHistory() {
+}
+	
+template <class EDITABLE_STREAM> EDITABLE_STREAM
+	EditableStreamHistory<EDITABLE_STREAM>::cut(const int index, const int length) {
+	EDITABLE_STREAM cut_stream = m_editableStream->cut(index, length);
+	return cut_stream;
+}
+
+template <class EDITABLE_STREAM> void
+	EditableStreamHistory<EDITABLE_STREAM>::paste(const int index, EDITABLE_STREAM& pasteStream) {
+	m_editableStream->paste(index, pasteStream);
+}
+
+template <class EDITABLE_STREAM> void
+	EditableStreamHistory<EDITABLE_STREAM>::replace(const int index, EDITABLE_STREAM& replaceStream) {
+	m_editableStream->cut(index, replaceStream.length());
+	m_editableStream->paste(index, replaceStream);
+}
+
+template <class EDITABLE_STREAM> bool
+	EditableStreamHistory<EDITABLE_STREAM>::undoPossible() {
+	return false;
+}
+
+template <class EDITABLE_STREAM> bool
+	EditableStreamHistory<EDITABLE_STREAM>::redoPossible() {
+	return false;
+}
+
+template <class EDITABLE_STREAM> void
+	EditableStreamHistory<EDITABLE_STREAM>::undo() {
+}
+
+template <class EDITABLE_STREAM> void
+	EditableStreamHistory<EDITABLE_STREAM>::redo() {
+}
+
+template <class EDITABLE_STREAM> EDITABLE_STREAM*
+	EditableStreamHistory<EDITABLE_STREAM>::editableStream() {
+	return m_editableStream;
+}
+
+#endif
-- 
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