lyx_mirror/src/lyxfont.h
Georg Baum bcb1654b15 Make the output of \inputencoding commands (and the change of output
encodings) more fine grained: From paragraph level to individual character
level. The inputenc package supports that since at least 2000.

	* src/insets/insetbase.h
	(latex): Document the differences between output to a string stream
	and a file stream

	* src/buffer.h
	(writeLaTeXSource): ditto

	* src/output_latex.h
	(latexParagraphs): ditto
	(switchEncoding): new function to change the encoding of a stream
	(and output \inputencoding commands)

	* src/paragraph_pimpl.C
	(Paragraph::Pimpl::simpleTeXSpecialC): Adjust to latexWriteEndChanges
	changes

	* src/support/docstream.[Ch]
	(setEncoding, operator<<): New stream modifier that changes the
	encoding of file streams

	* src/lyxfont.[Ch]
	(LyXFont::latexWriteStartChanges): Change stream encoding if needed
	(LyXFont::latexWriteEndChanges): Change stream encoding if needed

	* src/lyxfont.h
	(public:):

	* src/paragraph.C
	(Paragraph::simpleTeXOnePar): Adjust to latexWriteStartChanges and latexWriteEndChanges changes
	(bool Paragraph::simpleTeXOnePar):
	(bool Paragraph::simpleTeXOnePar):
	(bool Paragraph::simpleTeXOnePar):
	(bool Paragraph::simpleTeXOnePar):
	(bool Paragraph::simpleTeXOnePar):

	* src/output_latex.C
	(TeXOnePar): Remove the ugly hack to for wencoding changes and use
	switchEncoding instead. A nice side effect is that the old hack would
	not work if the main language encoding is latin1 and a character
	would be mapped to a cedilla in the "fake ucs4" encoding, because
	iconv refuses to convert such a character to latin1, although it
	exists in latin1 (it wants to attach it to a base character).


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16633 a592a061-630c-0410-9148-cb99ea01b6c8
2007-01-09 19:25:40 +00:00

423 lines
8.9 KiB
C++

// -*- C++ -*-
/**
* \file src/lyxfont.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Angus Leeming
* \author Dekel Tsur
*
* Full author contact details are available in file CREDITS.
*/
#ifndef LYXFONT_H
#define LYXFONT_H
#include "LColor.h"
#include "support/docstream.h"
namespace lyx {
class LyXLex;
class BufferParams;
class Language;
///
class LyXFont {
public:
/** The value INHERIT_* means that the font attribute is
inherited from the layout. In the case of layout fonts, the
attribute is inherited from the default font.
The value IGNORE_* is used with LyXFont::update() when the
attribute should not be changed.
*/
enum FONT_FAMILY {
///
ROMAN_FAMILY, // fontstruct rely on this to be 0
///
SANS_FAMILY,
///
TYPEWRITER_FAMILY,
///
SYMBOL_FAMILY,
///
CMR_FAMILY,
///
CMSY_FAMILY,
///
CMM_FAMILY,
///
CMEX_FAMILY,
///
MSA_FAMILY,
///
MSB_FAMILY,
///
EUFRAK_FAMILY,
///
WASY_FAMILY,
///
ESINT_FAMILY,
///
INHERIT_FAMILY,
///
IGNORE_FAMILY,
///
NUM_FAMILIES = INHERIT_FAMILY
};
///
enum FONT_SERIES {
///
MEDIUM_SERIES, // fontstruct rely on this to be 0
///
BOLD_SERIES,
///
INHERIT_SERIES,
///
IGNORE_SERIES
};
///
enum FONT_SHAPE {
///
UP_SHAPE, // fontstruct rely on this to be 0
///
ITALIC_SHAPE,
///
SLANTED_SHAPE,
///
SMALLCAPS_SHAPE,
///
INHERIT_SHAPE,
///
IGNORE_SHAPE
};
///
enum FONT_SIZE {
///
SIZE_TINY, // fontstruct rely on this to be 0
///
SIZE_SCRIPT,
///
SIZE_FOOTNOTE,
///
SIZE_SMALL,
///
SIZE_NORMAL,
///
SIZE_LARGE,
///
SIZE_LARGER,
///
SIZE_LARGEST,
///
SIZE_HUGE,
///
SIZE_HUGER,
///
INCREASE_SIZE,
///
DECREASE_SIZE,
///
INHERIT_SIZE,
///
IGNORE_SIZE
};
/// Used for emph, underbar, noun and latex toggles
enum FONT_MISC_STATE {
///
OFF,
///
ON,
///
TOGGLE,
///
INHERIT,
///
IGNORE
};
/// Trick to overload constructor and make it megafast
enum FONT_INIT1 {
///
ALL_INHERIT
};
///
enum FONT_INIT2 {
///
ALL_IGNORE
};
///
enum FONT_INIT3 {
///
ALL_SANE
};
struct FontBits {
///
FONT_FAMILY family;
///
FONT_SERIES series;
///
FONT_SHAPE shape;
///
FONT_SIZE size;
/** We store the LColor::color value as an int to get LColor.h out
* of the header file.
*/
int color;
///
FONT_MISC_STATE emph;
///
FONT_MISC_STATE underbar;
///
FONT_MISC_STATE noun;
///
FONT_MISC_STATE number;
};
///
LyXFont();
/// Shortcut initialization
explicit
LyXFont(LyXFont::FONT_INIT1);
/// Shortcut initialization
explicit
LyXFont(LyXFont::FONT_INIT2);
/// Shortcut initialization
explicit
LyXFont(LyXFont::FONT_INIT3);
/// Shortcut initialization
LyXFont(LyXFont::FONT_INIT1, Language const * l);
/// Shortcut initialization
LyXFont(LyXFont::FONT_INIT2, Language const * l);
/// Shortcut initialization
LyXFont(LyXFont::FONT_INIT3, Language const * l);
/// Decreases font size by one
LyXFont & decSize();
/// Increases font size by one
LyXFont & incSize();
///
FONT_FAMILY family() const { return bits.family; }
///
FONT_SERIES series() const { return bits.series; }
///
FONT_SHAPE shape() const { return bits.shape; }
///
FONT_SIZE size() const { return bits.size; }
///
FONT_MISC_STATE emph() const { return bits.emph; }
///
FONT_MISC_STATE underbar() const { return bits.underbar; }
///
FONT_MISC_STATE noun() const { return bits.noun; }
///
FONT_MISC_STATE number() const { return bits.number; }
///
LColor_color color() const;
///
Language const * language() const { return lang; }
///
bool isRightToLeft() const;
///
bool isVisibleRightToLeft() const;
///
bool isSymbolFont() const;
///
void setFamily(LyXFont::FONT_FAMILY f);
void setSeries(LyXFont::FONT_SERIES s);
void setShape(LyXFont::FONT_SHAPE s);
void setSize(LyXFont::FONT_SIZE s);
void setEmph(LyXFont::FONT_MISC_STATE e);
void setUnderbar(LyXFont::FONT_MISC_STATE u);
void setNoun(LyXFont::FONT_MISC_STATE n);
void setNumber(LyXFont::FONT_MISC_STATE n);
void setColor(LColor_color c);
void setLanguage(Language const * l);
/// Set family after LyX text format
LyXFont & setLyXFamily(std::string const &);
/// Set series after LyX text format
LyXFont & setLyXSeries(std::string const &);
/// Set shape after LyX text format
LyXFont & setLyXShape(std::string const &);
/// Set size after LyX text format
LyXFont & setLyXSize(std::string const &);
/// Returns misc flag after LyX text format
LyXFont::FONT_MISC_STATE setLyXMisc(std::string const &);
/// Sets color after LyX text format
LyXFont & setLyXColor(std::string const &);
/// Returns size of font in LaTeX text notation
std::string const latexSize() const;
/** Updates font settings according to request.
If an attribute is IGNORE, the attribute is left as it is.
When toggleall = true, all properties that matches the font in use
will have the effect that the properties is reset to the
default. If we have a text that is TYPEWRITER_FAMILY, and is
update()'ed with TYPEWRITER_FAMILY, the operation will be as if
a INHERIT_FAMILY was asked for. This is necessary for the
toggle-user-defined-style button on the toolbar.
*/
void update(LyXFont const & newfont,
Language const * default_lang,
bool toggleall = false);
/** Reduce font to fall back to template where possible.
Equal fields are reduced to INHERIT */
void reduce(LyXFont const & tmplt);
/// Realize font from a template (INHERIT are realized)
LyXFont & realize(LyXFont const & tmplt);
/// Is a given font fully resolved?
bool resolved() const;
/// Read a font specification from LyXLex. Used for layout files.
LyXFont & lyxRead(LyXLex &);
/// Writes the changes from this font to orgfont in .lyx format in file
void lyxWriteChanges(LyXFont const & orgfont, std::ostream &) const;
/** Writes the head of the LaTeX needed to change to this font.
Writes to string, the head of the LaTeX needed to change
to this font. Returns number of chars written. Base is the
font state active now.
*/
int latexWriteStartChanges(odocstream &, LyXFont const & base,
LyXFont const & prev,
BufferParams const &) const;
/** Writes the tail of the LaTeX needed to change to this font.
Returns number of chars written. Base is the font state we want
to achieve.
*/
int latexWriteEndChanges(odocstream &, LyXFont const & base,
LyXFont const & next,
BufferParams const &) const;
/// Build GUI description of font state
docstring const stateText(BufferParams * params) const;
///
LColor_color realColor() const;
///
friend
bool operator==(LyXFont const & font1, LyXFont const & font2);
///
friend
std::ostream & operator<<(std::ostream & os, LyXFont const & font);
/// Converts logical attributes to concrete shape attribute
// Try hard to inline this as it shows up with 4.6 % in the profiler.
LyXFont::FONT_SHAPE realShape() const {
if (bits.noun == ON)
return SMALLCAPS_SHAPE;
if (bits.emph == ON)
return (bits.shape == UP_SHAPE) ? ITALIC_SHAPE : UP_SHAPE;
return bits.shape;
}
/** Compaq cxx 6.5 requires that the definition be public so that
it can compile operator==()
*/
private:
///
FontBits bits;
///
Language const * lang;
/// Sane font
static FontBits sane;
/// All inherit font
static FontBits inherit;
/// All ignore font
static FontBits ignore;
/// Updates a misc setting according to request
LyXFont::FONT_MISC_STATE setMisc(LyXFont::FONT_MISC_STATE newfont,
LyXFont::FONT_MISC_STATE org);
};
/** \c LyXFont_size is a wrapper for LyXFont::FONT_SIZE.
* It can be forward-declared and passed as a function argument without
* having to expose lyxfont.h.
*/
class LyXFont_size {
public:
///
LyXFont_size(LyXFont::FONT_SIZE val) : val_(val) {}
///
operator LyXFont::FONT_SIZE() const { return val_; }
private:
///
LyXFont::FONT_SIZE val_;
};
inline
bool LyXFont::isSymbolFont() const
{
switch (family()) {
case LyXFont::SYMBOL_FAMILY:
case LyXFont::CMSY_FAMILY:
case LyXFont::CMM_FAMILY:
case LyXFont::CMEX_FAMILY:
case LyXFont::MSA_FAMILY:
case LyXFont::MSB_FAMILY:
case LyXFont::WASY_FAMILY:
case LyXFont::ESINT_FAMILY:
return true;
default:
return false;
}
}
///
std::ostream & operator<<(std::ostream &, LyXFont::FONT_MISC_STATE);
bool operator==(LyXFont::FontBits const & lhs, LyXFont::FontBits const & rhs);
inline
bool operator!=(LyXFont::FontBits const & lhs, LyXFont::FontBits const & rhs)
{
return !(lhs == rhs);
}
///
inline
bool operator==(LyXFont const & font1, LyXFont const & font2)
{
return font1.bits == font2.bits && font1.lang == font2.lang;
}
///
inline
bool operator!=(LyXFont const & font1, LyXFont const & font2)
{
return !(font1 == font2);
}
} // namespace lyx
#endif