home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Dream 52
/
Amiga_Dream_52.iso
/
Linux
/
Divers
/
lyx-0.13.2.tar.gz
/
lyx-0.13.2.tar
/
lyx-0.13.2
/
src
/
vspace.h
< prev
Wrap
C/C++ Source or Header
|
1998-04-23
|
5KB
|
201 lines
// -*- C++ -*-
/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright (C) 1995 1996 Matthias Ettrich
* and the LyX Team.
*
*======================================================*/
#ifndef _VSPACE_H_
#define _VSPACE_H_
#ifdef __GNUG__
#pragma interface
#endif
#include <stdio.h>
/// 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,
/// no unit
UNIT_NONE
};
//@Man: constructors
//@{
///
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. */
LyXLength(LString const & data);
//@}
//@Man: selectors
//@{
///
float value() const { return val; };
///
LyXLength::UNIT unit() const { return uni; };
//@}
///
virtual bool operator==(LyXLength other);
/// conversion
virtual LString asString() const;
virtual LString asLatexString() const { return this->asString(); };
/** If "data" is valid, the length represented by it is
stored into "result", if that is not NULL. */
friend bool isValidLength(LString const & data,
LyXLength* result=NULL);
protected:
float val;
LyXLength::UNIT uni;
};
extern LyXLength::UNIT unitFromString (LString const & data);
extern bool isValidLength(LString const &data, LyXLength* result);
/// LyXGlueLength class
class LyXGlueLength : public LyXLength {
public:
//@Man: constructors
//@{
///
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 */
LyXGlueLength(LString const & data);
//@}
//@Man: selectors
//@{
///
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; };
//@}
///
virtual bool operator==(LyXGlueLength other);
/// conversion
virtual LString asString() const;
virtual LString asLatexString() const;
/** If "data" is valid, the length represented by it is
stored into "result", if that is not NULL. */
friend bool isValidGlueLength(LString const & data,
LyXGlueLength* result=NULL);
protected:
float plus_val, minus_val;
LyXLength::UNIT plus_uni, minus_uni;
};
extern bool isValidGlueLength(LString const &data, LyXGlueLength* result);
/// VSpace class
class VSpace {
public:
///
enum vspace_kind { NONE, DEFSKIP,
SMALLSKIP, MEDSKIP, BIGSKIP,
VFILL, LENGTH };
// constructors
VSpace() :
kin (NONE),
len(0.0, LyXLength::PT),
kp (false) {};
VSpace(vspace_kind k) :
kin (k),
len (0.0, LyXLength::PT),
kp (false) {};
VSpace(LyXGlueLength l) :
kin (LENGTH),
len (l),
kp (false) {};
VSpace(float v, LyXLength::UNIT u) :
kin (LENGTH),
len (v, u),
kp (false) {};
/// this constructor is for reading from a .lyx file
VSpace(LString const & data);
// access functions
vspace_kind kind() const { return kin; }
LyXLength length() const { return len; }
// a flag that switches between \vspace and \vspace*
bool keep() const { return kp; }
void setKeep(bool val) { kp = val; }
bool operator== (VSpace other);
// conversion
LString asLyXCommand() const; // how it goes into the LyX file
LString asLatexCommand() const;
int inPixels() const;
private:
vspace_kind kin;
LyXGlueLength len;
bool kp;
};
#endif