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https://git.lyx.org/repos/lyx.git
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76ef051b1c
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2144 a592a061-630c-0410-9148-cb99ea01b6c8
147 lines
2.7 KiB
C
147 lines
2.7 KiB
C
#include <config.h>
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#include "math_bigopinset.h"
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#include "LColor.h"
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#include "Painter.h"
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#include "mathed/support.h"
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#include "support/LOstream.h"
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using std::ostream;
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MathBigopInset::MathBigopInset(string const & name, int id)
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: MathScriptInset(true, false), lims_(-1), sym_(id)
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{
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SetName(name);
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}
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MathInset * MathBigopInset::Clone() const
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{
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return new MathBigopInset(*this);
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}
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void MathBigopInset::Write(ostream & os, bool fragile) const
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{
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//bool f = sym_ != LM_int && sym_ != LM_oint && size() == LM_ST_DISPLAY;
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os << '\\' << name();
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if (limits() == 1)
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os << "\\limits ";
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else if (limits() == -1)
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os << "\\nolimits ";
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else
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os << ' ';
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MathScriptInset::Write(os, fragile);
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}
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void MathBigopInset::WriteNormal(ostream & os) const
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{
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os << "[bigop " << name();
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if (limits() == 1)
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os << "\\limits ";
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else if (limits() == -1)
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os << "\\nolimits ";
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else
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os << ' ';
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MathScriptInset::WriteNormal(os);
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os << "] ";
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}
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void MathBigopInset::Metrics(MathStyles st)
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{
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MathScriptInset::Metrics(st);
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size(st);
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string s;
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short t;
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if (sym_ < 256 || sym_ == LM_oint) {
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char const c = (sym_ == LM_oint) ? LM_int : sym_;
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s += c;
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t = LM_TC_BSYM;
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} else {
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s = name();
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t = LM_TC_TEXTRM;
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}
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int asc, des, wid;
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mathed_string_dim(t, size(), s, asc, des, wid);
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if (sym_ == LM_oint)
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wid += 2;
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if (hasLimits()) {
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ascent_ = asc + xcell(0).height() + 2;
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descent_ = des + xcell(1).height() + 2;
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width_ = max(width_, wid);
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} else {
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ascent_ = max(ascent_, asc);
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descent_ = max(descent_, des);
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width_ += wid;
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}
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}
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void MathBigopInset::draw(Painter & pain, int x, int y)
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{
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xo(x);
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yo(y);
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string s;
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short t;
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if (sym_ < 256 || sym_ == LM_oint) {
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s += (sym_ == LM_oint) ? LM_int : sym_;
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t = LM_TC_BSYM;
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} else {
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s = name();
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t = LM_TC_TEXTRM;
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}
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if (sym_ == LM_oint) {
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pain.arc(x, y - 5 * width_ / 4, width_, width_, 0, 360 * 64,
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LColor::mathline);
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++x;
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}
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int asc, des, wid;
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mathed_string_dim(t, size(), s, asc, des, wid);
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if (hasLimits()) {
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int w = width();
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pain.text(x + (w - wid)/2, y, s, mathed_get_font(t, size()));
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xcell(0).draw
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(pain, x + (w - xcell(0).width())/2, y - asc - xcell(0).descent() - 1);
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xcell(1).draw
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(pain, x + (w - xcell(1).width())/2, y + des + xcell(1).ascent() + 1);
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} else {
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pain.text(x, y, s, mathed_get_font(t, size()));
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MathScriptInset::draw(pain, x + wid, y);
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}
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}
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int MathBigopInset::limits() const
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{
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return lims_;
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}
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void MathBigopInset::limits(int limit)
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{
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lims_ = limit;
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}
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bool MathBigopInset::hasLimits() const
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{
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return limits() == 1 || (limits() == 0 && size() == LM_ST_DISPLAY);
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}
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bool MathBigopInset::idxDelete(int idx)
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{
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// ignore the return value, we do not want the inset to be deleted
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MathScriptInset::idxDelete(idx);
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return false;
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}
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