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https://git.lyx.org/repos/lyx.git
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2c81992188
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3522 a592a061-630c-0410-9148-cb99ea01b6c8
131 lines
2.8 KiB
C
131 lines
2.8 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_xyarrowinset.h"
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#include "math_xymatrixinset.h"
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#include "math_mathmlstream.h"
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#include "math_streamstr.h"
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#include "math_support.h"
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#include "Painter.h"
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#include "debug.h"
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MathXYArrowInset::MathXYArrowInset()
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: MathNestInset(2)
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{}
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MathInset * MathXYArrowInset::clone() const
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{
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return new MathXYArrowInset(*this);
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}
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MathXYMatrixInset const * MathXYArrowInset::targetMatrix() const
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{
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return mi_.inset ? mi_.inset->asXYMatrixInset() : 0;
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}
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MathXArray const & MathXYArrowInset::targetCell() const
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{
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MathXYMatrixInset const * p = targetMatrix();
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int x = 0;
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int y = 0;
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MathArray const & t = cell(0);
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for (MathArray::const_iterator it = t.begin(); it != t.end(); ++it) {
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switch ((*it)->getChar()) {
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case 'l': --x; break;
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case 'r': ++x; break;
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case 'u': --y; break;
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case 'd': ++y; break;
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}
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}
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//lyxerr << "target: x: " << x << " y: " << y << "\n";
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int n = mi_.idx + p->ncols() * y + x;
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if (n < 0 || n >= int(p->nargs())) {
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lyxerr << "source: n: " << mi_.idx << "\n";
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lyxerr << "target: n: " << n << " out of range\n";
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n = 0;
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}
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return p->xcell(n);
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}
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MathXArray const & MathXYArrowInset::sourceCell() const
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{
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return targetMatrix()->xcell(mi_.idx);
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}
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void MathXYArrowInset::metrics(MathMetricsInfo const & mi) const
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{
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mi_ = mi;
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MathNestInset::metrics(mi);
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if (editing()) {
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int w = mathed_string_width(LM_TC_TEXTRM, mi_, "target: ");
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width_ = w + std::max(xcell(0).width(), xcell(1).width());
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ascent_ = xcell(0).ascent();
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descent_ = xcell(0).descent() + xcell(1).height() + 10;
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} else {
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width_ = 0;
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ascent_ = 0;
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descent_ = 0;
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//mathed_string_dim(LM_TC_TEXTRM, mi_, "X", ascent_, descent_, width_);
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}
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}
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void MathXYArrowInset::draw(Painter & pain, int x, int y) const
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{
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metrics(mi_);
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if (editing()) {
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int lasc;
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int ldes;
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int lwid;
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mathed_string_dim(LM_TC_TEXTRM, mi_, "target: ", lasc, ldes, lwid);
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xcell(0).draw(pain, x + lwid, y);
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drawStr(pain, LM_TC_TEXTRM, mi_, x + 3, y, "target");
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y += std::max(xcell(0).descent(), ldes) + 5;
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y += std::max(xcell(1).ascent(), lasc) + 5;
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xcell(1).draw(pain, x + lwid, y);
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drawStr(pain, LM_TC_TEXTRM, mi_, x + 3, y, "label");
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} else {
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//drawStr(pain, LM_TC_TEXTRM, mi_, x, y, "X");
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MathXArray const & s = sourceCell();
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MathXArray const & t = targetCell();
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pain.line(s.xm(), s.ym(), t.xm(), t.ym(), LColor::math);
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xcell(1).draw(pain, (s.xm() + t.xm())/2, (s.ym() + t.ym())/2);
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}
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}
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void MathXYArrowInset::write(WriteStream & os) const
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{
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os << "\\ar";
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if (cell(0).size())
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os << "[" << cell(0) << "]";
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if (cell(1).size())
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os << (up_ ? "^" : "_") << "{" << cell(1) << "}";
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os << " ";
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}
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void MathXYArrowInset::normalize(NormalStream & os) const
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{
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os << "[xyarrow ";
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MathNestInset::normalize(os);
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os << "]";
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}
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