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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9295 a592a061-630c-0410-9148-cb99ea01b6c8
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
// -*- C++ -*-
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/**
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* \file math_atom.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_ATOM_H
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#define MATH_ATOM_H
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/**
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Wrapper for MathInset * with copy-semantics
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--
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The 'atom' is the major blob in math typesetting. And 'atom' consists
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of a nucleus, an optional superscript, and an optional subscript.
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Exactly where the subscript and superscript are drawn depends on the
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size, and type, of the nucleus they are attached to.
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Jules
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--
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Ok: Implementing it thusly is not feasible since cursor movement gets
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hackish. We use MathAtom only as a wrapper around MathInset * with value
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semantics.
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The MathAtom owns the MathInset * and is responsible for proper cloning and
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destruction. Every MathInset * should be put into a MathAtom after its
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creation as soon as possible.
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Andre'
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*/
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class InsetBase;
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class MathInset;
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class MathAtom {
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public:
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/// default constructor, object is useless, but we need it to put it into
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// std::containers
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MathAtom();
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/// the "real constructor"
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explicit MathAtom(InsetBase * p);
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/// copy constructor, invokes nucleus_->clone()
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MathAtom(MathAtom const &);
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/// we really need to clean up
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~MathAtom();
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/// assignment invokes nucleus_->clone()
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MathAtom & operator=(MathAtom const &);
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/// access to the inset (checked with gprof)
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MathInset * nucleus() { return nucleus_; }
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MathInset const * nucleus() const { return nucleus_; }
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/// access to the inset
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MathInset const * operator->() const { return nucleus_; }
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/// width cache. Not nice...
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//mutable int width_;
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private:
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///
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MathInset * nucleus_;
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};
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#endif
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