+// -*- C++ -*-
/**
* \file changes.h
- * Copyright 2002 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * Record changes in a paragraph.
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS.
*
- * \author John Levon <levon@movementarian.org>
+ * Record changes in a paragraph.
*/
#ifndef CHANGES_H
#include <vector>
#include <iosfwd>
-#include <ctime>
-struct Change {
+
+class Change {
+public:
/// the type of change
enum Type {
UNCHANGED, // no change
Change(Type t = UNCHANGED, int a = 0, lyx::time_type ct = 0)
: type(t), author(a), changetime(ct) {}
- Type type;
+ Type type;
int author;
- lyx::time_type changetime;
+ lyx::time_type changetime;
};
-
+
bool operator==(Change const & l, Change const & r);
bool operator!=(Change const & l, Change const & r);
-
+
class Changes {
public:
-
+
Changes(Change::Type type);
~Changes();
void reset(Change::Type type) {
empty_type_ = type;
}
-
+
/// set the position to the given change
void set(Change change, lyx::pos_type pos);
-
+
/// set the position to the given change
void set(Change::Type, lyx::pos_type pos);
/// return true if there is a deleted or unchanged range contained
bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
-
+
/// remove the given entry
void erase(lyx::pos_type pos);
/// output .lyx file format for transitions between changes
static void lyxMarkChange(std::ostream & os, int & column,
lyx::time_type curtime, Change const & old, Change const & change);
-
+
private:
- struct Range {
+ class Range {
+ public:
Range(lyx::pos_type s, lyx::pos_type e)
: start(s), end(e) {}
// do the ranges intersect ?
bool intersects(Range const & r) const;
-
+
lyx::pos_type start;
lyx::pos_type end;
};
-
+
friend bool operator==(Range const & r1, Range const & r2);
friend bool operator!=(Range const & r1, Range const & r2);
-
- struct ChangeRange {
+
+ class ChangeRange {
+ public:
ChangeRange(lyx::pos_type s, lyx::pos_type e, Change c)
: range(Range(s, e)), change(c) {}
Range range;
Change change;
};
-
- typedef std::vector<ChangeRange> ChangeTable;
+
+ typedef std::vector<ChangeRange> ChangeTable;
/// our table of changes
ChangeTable table_;
-
+
/// change type for an empty paragraph
Change::Type empty_type_;
-
+
/// handle a delete
void del(Change change, ChangeTable::size_type pos);
/// handle an add
void add(Change change, ChangeTable::size_type pos);
-
+
/// merge neighbouring ranges
void merge();