Initial import of the CDE 2.1.30 sources from the Open Group.

cde/lib/tt/demo/CoEd/libCoEd/CoEdTextChange.h

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+/*%%  (c) Copyright 1993, 1994 Hewlett-Packard Company			 */
+/*%%  (c) Copyright 1993, 1994 International Business Machines Corp.	 */
+/*%%  (c) Copyright 1993, 1994 Sun Microsystems, Inc.			 */
+/*%%  (c) Copyright 1993, 1994 Novell, Inc. 				 */
+/*%%  $XConsortium: CoEdTextChange.h /main/3 1995/10/23 09:43:46 rswiston $ 			 				 */
+/* -*-C++-*-
+ *
+ * CoEdTextChange.h
+ *
+ * Copyright (c) 1991 by Sun Microsystems.  All Rights Reserved.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the names of Sun
+ * Microsystems and its subsidiaries not be used in advertising or
+ * publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Sun Microsystems and its
+ * subsidiaries make no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ *
+ * Sun Microsystems and its subsidiaries disclaim all warranties with
+ * regard to this software, including all implied warranties of
+ * merchantability and fitness.  In no event shall Sun Microsystems or
+ * its subsidiaries be liable for any special, indirect or
+ * consequential damages or any damages whatsoever resulting from loss
+ * of use, data or profits, whether in an action of contract,
+ * negligence or other tortious action, arising out of or in
+ * connection with the use or performance of this software.
+ */
+
+#ifndef CoEdTextChange_h
+#define CoEdTextChange_h
+
+#define InLibCoEd
+
+#include "CoEd.h"
+#include "CoEdTextVersion.h"
+
+class CoEdTextChange {
+	friend class CoEdTextChangeList;
+	friend class CoEdChangeHistory;
+	friend class CoEdChangeQueue;
+
+    public:
+	CoEdTextChange();
+	CoEdTextChange( long start, long end, const char *text,
+		        const CoEdTextVersion *appliesTo,
+		        const CoEdSiteID *causer, int changeNum );
+	CoEdTextChange( const CoEdTextChange &change );
+	CoEdTextChange( Tt_message msg, CoEdStatus &status );
+	~CoEdTextChange();
+
+	CoEdStatus	broadcast( const char *path )			const;
+	int		knowsOfNewerChangesThan(
+				const CoEdTextVersion &version )	const
+				{ return _appliesTo->knowsOfNewerChangesThan(
+							version ); }
+	int		knowsOfNewerChangesThan(
+				const CoEdTextChange &change )		const
+				{ return _appliesTo->knowsOfNewerChangesThan(
+							*change._appliesTo ); }
+	int		knowsOf( const CoEdTextChange &change )		const
+				{ return _appliesTo->knowsOf( *change._causer,
+						        change._changeNum ); }
+	void		interTranslate( CoEdTextChange &chng2Xlate );
+	void		translateOver( const CoEdTextChange &chng2Hurdle );
+	long		adjustPt( long pt, const CoEdSiteID &ptOwner,
+				  int directionToLean )			const;
+	void		print( FILE *f );
+	long		charsAddedBy()	const { return _charsAdded; }
+	long		start()		const { return _start; }
+	long		end()		const { return _end; }
+	const char     *text()		const { return _text; }
+	const CoEdSiteID &causer()	const { return *_causer; }
+	int		changeNum()	const { return _changeNum; }
+
+    private:
+	long			_start;
+	long			_end;
+	const char	       *_text;
+	CoEdTextVersion	       *_appliesTo;
+	CoEdSiteID	       *_causer;
+	int			_changeNum;
+	long			_charsAdded;
+	CoEdTextChange	       *_next;
+	CoEdTextChange	       *_prev;
+};
+
+class CoEdTextChangeList {
+	friend class CoEdChangeHistory;
+	friend class CoEdChangeQueue;
+
+    public:
+	CoEdTextChangeList();
+	~CoEdTextChangeList();
+
+	void		push( CoEdTextChange *change );
+	void		append( CoEdTextChange *change );
+	void		insertBefore( CoEdTextChange *change1,
+				      CoEdTextChange *change2 );
+	void		insertAfter( CoEdTextChange *change2,
+				     CoEdTextChange *change1 );
+	CoEdTextChange *remove( CoEdTextChange *change );
+	void		print( FILE *f, char *indent = "" );
+
+    private:
+	CoEdTextChange *_head;
+	CoEdTextChange *_tail;
+	int		_count;
+};
+
+#endif CoEdTextChange_h