-#ifdef __GNUG__
-#pragma interface
-#endif
-
-#include "LString.h"
-
-class BufferParams;
-class BufferView;
-
-/// LyXLength Class
-class LyXLength {
-public:
- /// length units
- enum UNIT {
- /// Scaled point (65536sp = 1pt) TeX's smallest unit.
- SP,
- /// Point = 1/72.27in = 0.351mm
- PT,
- /// Big point (72bp = 1in), also PostScript point
- BP,
- /// Didot point = 1/72 of a French inch, = 0.376mm
- DD,
- /// Millimeter = 2.845pt
- MM,
- /// Pica = 12pt = 4.218mm
- PC,
- /// Cicero = 12dd = 4.531mm
- CC,
- /// Centimeter = 10mm = 2.371pc
- CM,
- /// Inch = 25.4mm = 72.27pt = 6.022pc
- IN,
- /// Height of a small "x" for the current font.
- EX,
- /// Width of capital "M" in current font.
- EM,
- /// Math unit (18mu = 1em) for positioning in math mode
- MU,
- /// Percent of columnwidth both "%" or "%c"
- PW,
- ///
- PE,
- /// Percent of pagewidth
- PP,
- /// Percent of linewidth
- PL,
- /// no unit
- UNIT_NONE
- };
-
- ///
- LyXLength() : val(0), uni(LyXLength::PT) {}
- ///
- LyXLength(float v, LyXLength::UNIT u) : val(v), uni(u) {}
-
- /** "data" must be a decimal number, followed by a unit. */
- explicit
- LyXLength(string const & data);
-
- ///
- float value() const { return val; }
- ///
- LyXLength::UNIT unit() const { return uni; }
-
- /// conversion
- virtual string const asString() const;
- ///
- virtual string const asLatexString() const;
-
- /** If "data" is valid, the length represented by it is
- stored into "result", if that is not 0. */
- friend bool isValidLength(string const & data,
- LyXLength * result = 0);
-
-protected:
- ///
- float val;
- ///
- LyXLength::UNIT uni;
-};
-
-///
-inline
-bool operator==(LyXLength const & l1, LyXLength const & l2)
-{
- return l1.value() == l2.value()
- && l1.unit() == l2.unit();
-}
-
-///
-extern LyXLength::UNIT unitFromString (string const & data);
-///
-extern bool isValidLength(string const & data, LyXLength * result);
-///
-extern const char * stringFromUnit(int unit);
-
-/// LyXGlueLength class
-class LyXGlueLength : public LyXLength {
-public:
- ///
- LyXGlueLength(float v,
- LyXLength::UNIT u,
- float pv = 0.0,
- LyXLength::UNIT pu = LyXLength::UNIT_NONE,
- float mv = 0.0,
- LyXLength::UNIT mu = LyXLength::UNIT_NONE)
- : LyXLength (v, u),
- plus_val(pv), minus_val(mv),
- plus_uni(pu), minus_uni(mu) {}
-
- /** "data" must be a decimal number, followed by a unit, and
- optional "glue" indicated by "+" and "-". You may abbreviate
- reasonably. Examples:
- 1.2 cm // 4mm +2pt // 2cm -4mm +2mm // 4+0.1-0.2cm
- The traditional Latex format is also accepted, like
- 4cm plus 10pt minus 10pt */
- explicit
- LyXGlueLength(string const & data);
-
- ///
- float plusValue() const { return plus_val; }
- ///
- LyXLength::UNIT plusUnit() const { return plus_uni; }
- ///
- float minusValue() const { return minus_val; }
- ///
- LyXLength::UNIT minusUnit() const { return minus_uni; }
-
- /// conversion
- virtual string const asString() const;
- ///
- virtual string const asLatexString() const;