* 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
* src/mathed/InsetMathScript.[Ch]
(InsetMathScript::dy01): new, jointly account for both superscript
and subscript according to the rules in Appendix G of the TeXbook.
(InsetMathScript::dy0, InsetMathScript::dy1): set ascent and descent
values using dy01 for non-limits super/subscripts.
(InsetMathScript::metrics): account for the new super/subscript
placement rules when setting ascent and descent values.
* src/mathed/MathData.[Ch]
(MathArray::metrics): cache parameters needed for super/subscript
placement. When nucleus is not empty, set its ascent value to zero
such that it is correctly computed later, otherwise ascent values
less than that of an 'I' are not reported.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17471 a592a061-630c-0410-9148-cb99ea01b6c8
