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2e1863b704
This is a follow-up to758de957. - unify the metrics and drawing of \sqrt and \root using helper functions mathed_root_metrics and mathed_draw_root. - compute the vertical spacing above the nucleus of the root following rule 11 of the TeXbook. In particular, it is different in inline and display style. - draw the root glyph without hard-coded pixel values. Make the line width depend on the zoom. more work is needed to implement properly rule 11: - Ideally, we should use sqrt glyphs from the math fonts. Note that then we would get rule thickness from there. - The positioning of the root MathData is arbitrary. It should follow the definition of \root...\of... in The Texbook in Apprendix B page 360. Fixes bug #10814. (cherry picked from commit16af6e7c50) (cherry picked from commit6cb6f78ae9)
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetMathRoot.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Alejandro Aguilar Sierra
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef MATH_ROOT_H
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#define MATH_ROOT_H
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#include "InsetMathNest.h"
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namespace lyx {
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/// The general n-th root inset.
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class InsetMathRoot : public InsetMathNest {
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public:
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///
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InsetMathRoot(Buffer * buf);
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///
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bool idxUpDown(Cursor & cur, bool up) const;
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///
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void metrics(MetricsInfo & mi, Dimension & dim) const;
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///
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void draw(PainterInfo & pi, int x, int y) const;
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///
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void write(WriteStream & os) const;
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///
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void normalize(NormalStream &) const;
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///
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void mathmlize(MathStream &) const;
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///
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void htmlize(HtmlStream &) const;
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///
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void maple(MapleStream &) const;
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///
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void mathematica(MathematicaStream &) const;
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///
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void octave(OctaveStream &) const;
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///
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InsetCode lyxCode() const { return MATH_ROOT_CODE; }
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///
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void validate(LaTeXFeatures &) const;
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private:
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virtual Inset * clone() const;
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};
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void mathed_root_metrics(MetricsInfo & mi, MathData const & nucleus,
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MathData const * root, Dimension & dim);
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void mathed_draw_root(PainterInfo & pi, int x, int y, MathData const & nucleus,
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MathData const * root, Dimension const & dim);
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} // namespace lyx
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#endif
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