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108 lines
2.0 KiB
C
108 lines
2.0 KiB
C
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// -*- C++ -*-
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/* This file is part of
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* ======================================================
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*
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* LyX, The Document Processor
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*
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* Copyright 1995 Matthias Ettrich
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* Copyright 1995-2001 The LyX Team.
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*
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* ====================================================== */
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#ifndef LYX_LENGTH_H
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#define LYX_LENGTH_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "LString.h"
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//
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/// LyXLength Class
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//
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class LyXLength {
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public:
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/// length units
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enum UNIT {
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/// Scaled point (65536sp = 1pt) TeX's smallest unit.
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SP,
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/// Point = 1/72.27in = 0.351mm
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PT,
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/// Big point (72bp = 1in), also PostScript point
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BP,
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/// Didot point = 1/72 of a French inch, = 0.376mm
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DD,
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/// Millimeter = 2.845pt
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MM,
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/// Pica = 12pt = 4.218mm
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PC,
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/// Cicero = 12dd = 4.531mm
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CC,
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/// Centimeter = 10mm = 2.371pc
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CM,
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/// Inch = 25.4mm = 72.27pt = 6.022pc
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IN,
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/// Height of a small "x" for the current font.
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EX,
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/// Width of capital "M" in current font.
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EM,
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/// Math unit (18mu = 1em) for positioning in math mode
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MU,
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/// Percent of columnwidth both "%" or "%c"
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PW,
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///
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PE,
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/// Percent of pagewidth
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PP,
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/// Percent of linewidth
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PL,
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/// no unit
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UNIT_NONE
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};
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///
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LyXLength();
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///
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LyXLength(double v, LyXLength::UNIT u);
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/// "data" must be a decimal number, followed by a unit
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explicit LyXLength(string const & data);
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///
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double value() const;
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///
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LyXLength::UNIT unit() const;
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///
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void value(double);
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///
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void unit(LyXLength::UNIT unit);
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/// real length in SP
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//void lenght();
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/// conversion
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string const asString() const;
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///
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string const asLatexString() const;
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/** If "data" is valid, the length represented by it is
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stored into "result", if that is not 0. */
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friend bool isValidLength(string const & data, LyXLength * result = 0);
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private:
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///
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double val_;
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///
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LyXLength::UNIT unit_;
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};
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///
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bool operator==(LyXLength const & l1, LyXLength const & l2);
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///
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bool isValidLength(string const & data, LyXLength * result);
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///
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char const * stringFromUnit(int unit);
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#endif
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