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850346d996
(infoize2): Implement to show name if the cursor is to the right git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13757 a592a061-630c-0410-9148-cb99ea01b6c8
121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
/**
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* \file math_biginset.C
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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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#include <config.h>
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#include "math_biginset.h"
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#include "math_support.h"
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#include "math_mathmlstream.h"
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#include "math_streamstr.h"
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#include "support/lstrings.h"
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using std::string;
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using std::auto_ptr;
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MathBigInset::MathBigInset(string const & name, string const & delim)
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: name_(name), delim_(delim)
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{}
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string MathBigInset::name() const
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{
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return name_;
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}
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auto_ptr<InsetBase> MathBigInset::doClone() const
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{
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return auto_ptr<InsetBase>(new MathBigInset(*this));
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}
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MathBigInset::size_type MathBigInset::size() const
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{
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// order: big Big bigg Bigg biggg Biggg
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// 0 1 2 3 4 5
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return name_[0] == 'B' ?
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2 * (name_.size() - 4) + 1:
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2 * (name_.size() - 4);
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}
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double MathBigInset::increase() const
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{
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// The formula used in amsmath.sty is
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// 1.2 * (1.0 + size() * 0.5) - 1.0.
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// We use a smaller step and a bigger offset because our base size
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// is different.
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return (size() + 1) * 0.3;
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}
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void MathBigInset::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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double const h = mathed_char_ascent(mi.base.font, 'I');
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double const f = increase();
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dim_.wid = 6;
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dim_.asc = int(h + f * h);
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dim_.des = int(f * h);
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dim = dim_;
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}
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void MathBigInset::draw(PainterInfo & pi, int x, int y) const
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{
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// mathed_draw_deco does not use the leading backslash, so remove it.
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// Replace \| by \Vert (equivalent in LaTeX), since mathed_draw_deco
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// would treat it as |.
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string const delim = (delim_ == "\\|") ?
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"Vert" :
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lyx::support::ltrim(delim_, "\\");
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mathed_draw_deco(pi, x + 1, y - dim_.ascent(), 4, dim_.height(),
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delim);
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setPosCache(pi, x, y);
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}
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void MathBigInset::write(WriteStream & os) const
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{
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os << '\\' << name_ << ' ' << delim_;
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if (delim_[0] == '\\')
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os.pendingSpace(true);
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}
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void MathBigInset::normalize(NormalStream & os) const
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{
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os << '[' << name_ << ' ' << delim_ << ']';
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}
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void MathBigInset::infoize2(std::ostream & os) const
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{
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os << name_;
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}
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bool MathBigInset::isBigInsetDelim(string const & delim)
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{
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// mathed_draw_deco must handle these
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static char const * const delimiters[] = {
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"(", ")", "\\{", "\\}", "\\lbrace", "\\rbrace", "[", "]",
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"|", "/", "\\|", "\\vert", "\\Vert", "'", "\\backslash",
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"\\langle", "\\lceil", "\\lfloor",
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"\\rangle", "\\rceil", "\\rfloor",
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"\\downarrow", "\\Downarrow",
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"\\uparrow", "\\Uparrow",
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"\\updownarrow", "\\Updownarrow", ""
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};
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return (lyx::support::findToken(delimiters, delim) >= 0);
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}
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