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https://git.lyx.org/repos/lyx.git
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a3660106fe
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4473 a592a061-630c-0410-9148-cb99ea01b6c8
131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_decorationinset.h"
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#include "math_support.h"
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#include "math_parser.h"
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#include "math_mathmlstream.h"
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#include "math_streamstr.h"
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#include "support/LOstream.h"
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MathDecorationInset::MathDecorationInset(string const & name)
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: MathNestInset(1), name_(name)
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{}
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MathInset * MathDecorationInset::clone() const
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{
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return new MathDecorationInset(*this);
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}
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bool MathDecorationInset::upper() const
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{
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return name_.substr(0, 5) != "under";
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}
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bool MathDecorationInset::isScriptable() const
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{
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return
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name_ == "overbrace" ||
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name_ == "underbrace" ||
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name_ == "overleftarrow" ||
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name_ == "overrightarrow" ||
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name_ == "overleftrightarrow" ||
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name_ == "underleftarrow" ||
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name_ == "underrightarrow" ||
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name_ == "underleftrightarrow";
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}
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bool MathDecorationInset::protect() const
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{
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return
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name_ == "overbrace" ||
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name_ == "underbrace" ||
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name_ == "overleftarrow" ||
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name_ == "overrightarrow" ||
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name_ == "overleftrightarrow" ||
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name_ == "underleftarrow" ||
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name_ == "underrightarrow" ||
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name_ == "underleftrightarrow";
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}
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bool MathDecorationInset::wide() const
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{
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return
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name_ == "overline" ||
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name_ == "underline" ||
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name_ == "overbrace" ||
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name_ == "underbrace" ||
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name_ == "overleftarrow" ||
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name_ == "overrightarrow" ||
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name_ == "overleftrightarrow" ||
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name_ == "widehat" ||
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name_ == "widetilde" ||
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name_ == "underleftarrow" ||
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name_ == "underrightarrow" ||
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name_ == "underleftrightarrow";
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}
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void MathDecorationInset::metrics(MathMetricsInfo & mi) const
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{
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xcell(0).metrics(mi);
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width_ = xcell(0).width();
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ascent_ = xcell(0).ascent();
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descent_ = xcell(0).descent();
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dh_ = 6; //mathed_char_height(LM_TC_VAR, mi, 'I', ascent_, descent_);
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dw_ = 6; //mathed_char_width(LM_TC_VAR, mi, 'x');
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if (upper()) {
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dy_ = -ascent_ - dh_;
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ascent_ += dh_ + 1;
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} else {
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dy_ = descent_ + 1;
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descent_ += dh_ + 2;
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}
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// for the angular markers
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descent_ += 2;
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width_ += 2;
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}
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void MathDecorationInset::draw(MathPainterInfo & pi, int x, int y) const
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{
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xcell(0).draw(pi, x + 1, y);
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if (wide())
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mathed_draw_deco(pi, x + 1, y + dy_, width_, dh_, name_);
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else
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mathed_draw_deco(pi, x + 1 + (width_ - dw_) / 2, y + dy_, dw_, dh_, name_);
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drawMarkers(pi, x, y);
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}
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void MathDecorationInset::write(WriteStream & os) const
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{
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if (os.fragile() && protect())
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os << "\\protect";
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os << '\\' << name_ << '{' << cell(0) << '}';
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}
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void MathDecorationInset::normalize(NormalStream & os) const
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{
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os << "[deco " << name_ << ' ' << cell(0) << ']';
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}
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void MathDecorationInset::infoize(std::ostream & os) const
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{
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os << "Deco: " << name_;
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}
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