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89e4055189
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@29649 a592a061-630c-0410-9148-cb99ea01b6c8
144 lines
4.4 KiB
C++
144 lines
4.4 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetMathScript.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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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef MATH_SCRIPTINSET_H
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#define MATH_SCRIPTINSET_H
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#include "InsetMathNest.h"
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namespace lyx {
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// An inset for super- and subscripts or both. The 'nucleus' is always
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// cell 0. If there is just one script, it's cell 1 and cell_1_is_up_
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// is set accordingly. If both are used, cell 1 is up and cell 2 is down.
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class InsetMathScript : public InsetMathNest {
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public:
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/// create inset without scripts
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InsetMathScript();
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/// create inset with single script
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explicit InsetMathScript(bool up);
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/// create inset with single script and given nucleus
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InsetMathScript(MathAtom const & at, bool up);
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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 something readable by Maple
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void maple(MapleStream &) const;
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/// write content as something readable by Mathematica
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void mathematica(MathematicaStream &) const;
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/// write content as something resembling MathML
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void mathmlize(MathStream &) const;
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/// write content as something readable by Octave
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void octave(OctaveStream &) const;
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/// identifies scriptinsets
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InsetMathScript const * asScriptInset() const;
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///
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InsetMathScript * asScriptInset();
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/// set limits
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void limits(int lim) { limits_ = lim; }
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/// get limits
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int limits() const { return limits_; }
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/// returns subscript. Always run 'hasDown' or 'has(false)' before!
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MathData const & down() const;
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/// returns subscript. Always run 'hasDown' or 'has(false)' before!
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MathData & down();
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/// returns superscript. Always run 'hasUp' or 'has(true)' before!
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MathData const & up() const;
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/// returns superscript. Always run 'hasUp' or 'has(true)' before!
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MathData & up();
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/// returns nucleus
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MathData const & nuc() const;
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/// returns nucleus
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MathData & nuc();
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/// do we have a superscript?
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bool hasUp() const;
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/// do we have a subscript?
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bool hasDown() const;
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/// do we have a script?
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bool has(bool up) const;
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/// what idx has super/subscript?
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idx_type idxOfScript(bool up) const;
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/// remove script
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void removeScript(bool up);
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/// make sure a script is accessible
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void ensure(bool up);
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/// say that we have scripts
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void infoize(odocstream & os) const;
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/// say whether we have displayed limits
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void infoize2(odocstream & os) const;
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protected:
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virtual void doDispatch(Cursor & cur, FuncRequest & cmd);
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private:
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virtual Inset * clone() const;
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/// returns x offset for main part
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int dxx(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 dy01(BufferView const &, int asc, int des, int what) const;
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/// returns y offset for superscript
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int dy0(BufferView const &) const;
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/// returns y offset for subscript
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int dy1(BufferView const &) const;
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/// returns x offset for superscript
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int dx0(BufferView const & bv) const;
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/// returns x offset for subscript
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int dx1(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 superscript kerning of nucleus if any
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int nker(BufferView const * bv) const;
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/// where do we have to draw the scripts?
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bool hasLimits() const;
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/// clean up empty cells and return true if a cell has been deleted.
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bool notifyCursorLeaves(Cursor const & old, Cursor & cur);
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/// possible subscript (index 0) and superscript (index 1)
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bool cell_1_is_up_;
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/// 1 - "limits", -1 - "nolimits", 0 - "default"
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int limits_;
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};
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} // namespace lyx
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#endif
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