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119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetMathSideset.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 André Pönitz
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* \author Georg Baum
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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_SIDESETINSET_H
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#define MATH_SIDESETINSET_H
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#include "InsetMathNest.h"
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namespace lyx {
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/// An inset for amsmath \sideset. The 'nucleus' is always cell 0.
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/// cell(1) is the bottom left index, cell(2) is the top left index,
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/// cell(3) is the bottom right index, and cell(4) is top right index.
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class InsetMathSideset : public InsetMathNest {
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public:
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///
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InsetMathSideset(Buffer * buf, bool scriptl, bool scriptr);
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/// create inset with given nucleus
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InsetMathSideset(Buffer * buf, bool scriptl, bool scriptr,
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MathAtom const & at);
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///
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mode_type currentMode() const { return MATH_MODE; }
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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 metricsT(TextMetricsInfo const & mi, Dimension & dim) const;
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///
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void drawT(TextPainter & pi, int x, int y) const;
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/// move cursor backwards
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bool idxBackward(Cursor & cur) const;
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/// move cursor forward
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bool idxForward(Cursor & cur) const;
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/// move cursor up or down
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bool idxUpDown(Cursor & cur, bool up) const;
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/// Target pos when we enter the inset while moving forward
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bool idxFirst(Cursor & cur) const;
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/// Target pos when we enter the inset while moving backwards
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bool idxLast(Cursor & cur) const;
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/// write LaTeX and Lyx code
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void write(WriteStream & os) const;
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/// write normalized content
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void normalize(NormalStream &) const;
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/// write content as MathML
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void mathmlize(MathStream &) const;
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/// write content as HTML
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void htmlize(HtmlStream &) const;
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/// returns nucleus
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MathData const & nuc() const { return cell(0); }
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/// returns nucleus
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MathData & nuc() { return cell(0); }
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/// bottom left index or single left cell
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MathData const & bl() const { return cell(1); }
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/// bottom left index or single left cell
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MathData & bl() { return cell(1); }
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/// top left index or single left cell
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MathData const & tl() const { return cell(1 + scriptl_); }
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/// top left index or single left cell
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MathData & tl() { return cell(1 + scriptl_); }
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/// bottom right index or single right cell
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MathData const & br() const { return cell(2 + scriptl_); }
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/// bottom right index or single right cell
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MathData & br() { return cell(2 + scriptl_); }
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/// top right index or single right cell
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MathData const & tr() const { return cell(2 + scriptl_ + scriptr_); }
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/// top right index or single right cell
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MathData & tr() { return cell(2 + scriptl_ + scriptr_); }
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/// say that we have scripts
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void infoize(odocstream & os) const;
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///
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InsetCode lyxCode() const { return MATH_SCRIPT_CODE; }
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///
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void validate(LaTeXFeatures &features) const;
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private:
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virtual Inset * clone() const;
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/// returns x offset of nucleus
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int dxn(BufferView const & bv) const;
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/// returns width of nucleus if any
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int nwid(BufferView const &) const;
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/// returns y offset for either superscript or subscript
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int dybt(BufferView const &, int asc, int des, bool top) const;
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/// returns y offset for superscript
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int dyt(BufferView const &) const;
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/// returns y offset for subscript
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int dyb(BufferView const &) const;
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/// returns x offset for right subscript and superscript
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int dxr(BufferView const & bv) const;
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/// returns ascent of nucleus if any
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int nasc(BufferView const &) const;
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/// returns descent of nucleus if any
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int ndes(BufferView const &) const;
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/// returns subscript and superscript kerning of nucleus if any
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int nker(BufferView const * bv) const;
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/// Whether there are two left scripts or one single cell
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bool scriptl_;
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/// Whether there are two right scripts or one single cell
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bool scriptr_;
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};
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} // namespace lyx
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#endif
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