lyx_mirror/src/mathed/InsetMathChar.h
Enrico Forestieri 5b2d7ec76d Account for real width of nucleus when positioning superscripts in mathed
* src/mathed/MathSupport.[Ch]
	(mathed_char_kerning): New. Compute right kerning for the given
	font and character as the difference between right bearing and
	logical width.

	* src/mathed/InsetMathScript.[Ch]
	(InsetMathScript::dx1, InsetMathScript::metrics): Account for
	nucleus right kerning.
	(InsetMathScript::nker): New. Return the nucleus right kerning
	if positive, zero otherwise.

	* src/mathed/MathData.[Ch]
	(MathArray::metrics): Cache the nucleus right kerning value.
	(MathArray::kerning): New. Return cached right kerning.

	* src/mathed/InsetMathChar.[Ch]
	(InsetMathChar::metrics): Cache the character right kerning.
	(InsetMathChar::kerning): New. Return cached right kerning.

	* src/mathed/InsetMath.h
	(InsetMath::kerning): New virtual method.

	* src/mathed/InsetMathSymbol.[Ch]
	(InsetMathSymbol::metrics): Cache the symbol right kerning.
	(InsetMathSymbol::kerning): New. Return cached right kerning.

	* src/mathed/InsetMathFont.[Ch]
	(InsetMathFont::kerning): New. Return cached right kerning.



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17497 a592a061-630c-0410-9148-cb99ea01b6c8
2007-03-21 17:21:59 +00:00

66 lines
1.3 KiB
C++

// -*- C++ -*-
/**
* \file InsetMathChar.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#ifndef MATH_CHARINSET_H
#define MATH_CHARINSET_H
#include "InsetMath.h"
namespace lyx {
/// The base character inset.
class InsetMathChar : public InsetMath {
public:
///
explicit InsetMathChar(char_type c);
///
bool metrics(MetricsInfo & mi, Dimension & dim) const;
///
void draw(PainterInfo & pi, int x, int y) const;
///
void metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
///
void drawT(TextPainter &, int x, int y) const;
///
int width() const { return width_; }
///
int kerning() const { return kerning_; }
///
void write(WriteStream & os) const;
///
void normalize(NormalStream & ns) const;
///
void octave(OctaveStream & os) const;
///
void mathmlize(MathStream & ms) const;
/// identifies Charinsets
InsetMathChar const * asCharInset() const { return this; }
///
char_type getChar() const { return char_; }
///
bool isRelOp() const;
private:
virtual std::auto_ptr<InsetBase> doClone() const;
/// the character
char_type char_;
/// cached width
mutable int width_;
/// cached kerning for superscript
mutable int kerning_;
};
} // namespace lyx
#endif