lyx_mirror/src/counters.h

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// -*- C++ -*-
/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2001 The LyX Team.
*
*
* ====================================================== */
#ifndef COUNTERS_H
#define COUNTERS_H
#ifdef __GNUG__
#pragma interface
#endif
#include "LString.h"
#include <map>
/// This represents a single counter.
class Counter {
public:
///
Counter();
///
void set(int v);
///
void addto(int v);
///
int value() const;
///
void step();
///
void reset();
/// Returns the master counter of this counter
string master() const;
/// sets the master counter for this counter
void setMaster(string const & m);
private:
///
int value_;
/// contains master counter name; master counter is the counter
/// that, if stepped (incremented) zeroes this counter. E.g.
/// "subparagraph"'s master is "paragraph".
string master_;
};
/// This is a class of (La)TeX type counters.
/// Every instantiation is an array of counters of type Counter.
class Counters {
public:
/// Add a new counter to array.
void newCounter(string const & newc);
/// Add new counter having oldc as its master.
void newCounter(string const & newc, string const & oldc);
///
void set(string const & ctr, int val);
///
void addto(string const & ctr, int val);
///
int value(string const & ctr) const;
/// Step (increment by one) counter named by arg, and
/// zeroes slave counter(s) for which it is the master.
/// NOTE sub-slaves not zeroed! That happens at slave's
/// first step 0->1. Seems to be sufficient.
void step(string const & ctr);
/// Reset all counters.
void reset();
/// Reset counters matched by match string.
void reset(string const & match);
/// Copy counters whose name matches match from the &from to
/// the &to array of counters. Empty string matches all.
void copy(Counters & from, Counters & to, string const & match = string());
/// A numeric label's single item, like .1 for subsection number in
/// the 2.1.4 subsubsection number label. "first" indicates if this
/// is the first item to be displayed, usually chapter or section.
string labelItem(string const & ctr,
string const & labeltype,
string const & langtype = "latin",
bool first = false);
/// A complete numeric label, like 2.1.4 for a subsubsection.
/// "head" indicates sequence number of first item to be
/// displayed, e.g. 0 for chapter, 1 for section.
string numberLabel(string const & ctr,
string const & labeltype,
string const & langtype = "latin",
int head = 0);
private:
/// Maps counter (layout) names to actual counters.
typedef std::map<string, Counter> CounterList;
/// Instantiate.
CounterList counterList;
};
#endif