mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-15 23:49:37 +00:00
503c7c1688
The original use case for this bug is entering an overset inset when there is a selection. The expected result was to have the selection pasted in main text, but the result was to have it in the cell. Insets already have idxFirst() that is able to set cursor to the "entry" cell of an inset. This patch introduces firstIdx(), which is the index of this cell and uses it in idxFirst() (idem for lastIdx/idxLast). As a consequence, several instances of idxFirst/idxLast can be removed. Now for the real fix: the two places where the cell in which selection is inserted seem to be: * Cursor::macroModeClose * Cursor::handleNest These two methods are changed to insert material in the entry cell instead of cell 0. idxFirst/Last methods are added to InsetMathRoot and InsetMathStackrel so that the natural entry point is the nucleus of those insets. Finallly, a typo is fixed in InsetMathNest::edit() where enter_front computation was incorrect.
485 lines
10 KiB
C++
485 lines
10 KiB
C++
/**
|
|
* \file InsetMathSideset.cpp
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author André Pönitz
|
|
* \author Georg Baum
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "InsetMathSideset.h"
|
|
|
|
#include "InsetMathSymbol.h"
|
|
#include "MathData.h"
|
|
#include "MathStream.h"
|
|
#include "MathSupport.h"
|
|
|
|
#include "BufferView.h"
|
|
#include "Cursor.h"
|
|
#include "DispatchResult.h"
|
|
#include "FuncRequest.h"
|
|
#include "FuncStatus.h"
|
|
#include "LaTeXFeatures.h"
|
|
#include "MetricsInfo.h"
|
|
|
|
#include "support/debug.h"
|
|
#include "support/lassert.h"
|
|
|
|
|
|
using namespace std;
|
|
|
|
|
|
namespace {
|
|
/// x spacing between the nucleus and the scripts
|
|
int const dx = 2;
|
|
} // namespace
|
|
|
|
|
|
namespace lyx {
|
|
|
|
InsetMathSideset::InsetMathSideset(Buffer * buf, bool scriptl, bool scriptr)
|
|
: InsetMathNest(buf, 3 + scriptl + scriptr), scriptl_(scriptl),
|
|
scriptr_(scriptr)
|
|
{}
|
|
|
|
|
|
InsetMathSideset::InsetMathSideset(Buffer * buf, bool scriptl, bool scriptr,
|
|
MathAtom const & at)
|
|
: InsetMathNest(buf, 3 + scriptl + scriptr), scriptl_(scriptl),
|
|
scriptr_(scriptr)
|
|
{
|
|
nuc().push_back(at);
|
|
}
|
|
|
|
|
|
Inset * InsetMathSideset::clone() const
|
|
{
|
|
return new InsetMathSideset(*this);
|
|
}
|
|
|
|
|
|
int InsetMathSideset::dybt(BufferView const & bv, int asc, int des, bool top) const
|
|
{
|
|
bool isCharBox = nuc().empty() ? false : isAlphaSymbol(nuc().back());
|
|
int dasc = 0;
|
|
if (scriptl_ && scriptr_)
|
|
dasc = max(bl().dimension(bv).ascent(), br().dimension(bv).ascent());
|
|
else if (scriptl_)
|
|
dasc = bl().dimension(bv).ascent();
|
|
else if (scriptr_)
|
|
dasc = br().dimension(bv).ascent();
|
|
int slevel = nuc().slevel();
|
|
int ascdrop = dasc - slevel;
|
|
int desdrop = isCharBox ? 0 : des + nuc().sshift();
|
|
int mindes = nuc().mindes();
|
|
des = max(desdrop, ascdrop);
|
|
des = max(mindes, des);
|
|
int minasc = nuc().minasc();
|
|
ascdrop = 0;
|
|
if (!isCharBox && (scriptl_ || scriptr_)) {
|
|
if (scriptl_ && scriptr_)
|
|
ascdrop = asc - min(tl().mindes(), tr().mindes());
|
|
else if (scriptl_)
|
|
ascdrop = asc - tl().mindes();
|
|
else if (scriptr_)
|
|
ascdrop = asc - tr().mindes();
|
|
}
|
|
int udes = 0;
|
|
if (scriptl_)
|
|
udes = bl().dimension(bv).descent();
|
|
if (scriptr_)
|
|
udes = max(udes, br().dimension(bv).descent());
|
|
asc = udes + nuc().sshift();
|
|
asc = max(ascdrop, asc);
|
|
asc = max(minasc, asc);
|
|
int del = asc - udes - dasc;
|
|
if (del + des <= 2) {
|
|
int newdes = 2 - del;
|
|
del = slevel - asc + udes;
|
|
if (del > 0) {
|
|
asc += del;
|
|
newdes -= del;
|
|
}
|
|
des = max(des, newdes);
|
|
}
|
|
return top ? asc : des;
|
|
}
|
|
|
|
|
|
int InsetMathSideset::dyb(BufferView const & bv) const
|
|
{
|
|
int nd = ndes(bv);
|
|
int na = nasc(bv);
|
|
int des = dybt(bv, na, nd, false);
|
|
return des;
|
|
}
|
|
|
|
|
|
int InsetMathSideset::dyt(BufferView const & bv) const
|
|
{
|
|
int na = nasc(bv);
|
|
int nd = ndes(bv);
|
|
int asc = dybt(bv, na, nd, true);
|
|
return asc;
|
|
}
|
|
|
|
|
|
int InsetMathSideset::dxr(BufferView const & bv) const
|
|
{
|
|
return dxn(bv) + nwid(bv) + dx;
|
|
}
|
|
|
|
|
|
int InsetMathSideset::dxn(BufferView const & bv) const
|
|
{
|
|
Dimension const dimb = bl().dimension(bv);
|
|
Dimension const dimt = tl().dimension(bv);
|
|
return max(dimb.width(), dimt.width()) + dx;
|
|
}
|
|
|
|
|
|
int InsetMathSideset::nwid(BufferView const & bv) const
|
|
{
|
|
return nuc().dimension(bv).width();
|
|
}
|
|
|
|
|
|
int InsetMathSideset::nasc(BufferView const & bv) const
|
|
{
|
|
return nuc().dimension(bv).ascent();
|
|
}
|
|
|
|
|
|
int InsetMathSideset::ndes(BufferView const & bv) const
|
|
{
|
|
return nuc().dimension(bv).descent();
|
|
}
|
|
|
|
|
|
int InsetMathSideset::nker(BufferView const * bv) const
|
|
{
|
|
int const kerning = nuc().kerning(bv);
|
|
return max(kerning, 0);
|
|
}
|
|
|
|
|
|
void InsetMathSideset::metrics(MetricsInfo & mi, Dimension & dim) const
|
|
{
|
|
Changer dummy2 = mi.base.changeEnsureMath();
|
|
Dimension dimn;
|
|
Dimension dimbl;
|
|
Dimension dimtl;
|
|
Dimension dimbr;
|
|
Dimension dimtr;
|
|
nuc().metrics(mi, dimn);
|
|
if (!scriptl_) {
|
|
bl().metrics(mi, dimbl);
|
|
dimtl = dimbl;
|
|
}
|
|
if (!scriptr_) {
|
|
br().metrics(mi, dimbr);
|
|
dimtr = dimbr;
|
|
}
|
|
Changer dummy = mi.base.changeScript();
|
|
if (scriptl_) {
|
|
bl().metrics(mi, dimbl);
|
|
tl().metrics(mi, dimtl);
|
|
}
|
|
if (scriptr_) {
|
|
br().metrics(mi, dimbr);
|
|
tr().metrics(mi, dimtr);
|
|
}
|
|
|
|
BufferView & bv = *mi.base.bv;
|
|
// FIXME: data copying... not very efficient.
|
|
|
|
dim.wid = nwid(bv) + nker(mi.base.bv) + 2 * dx;
|
|
dim.wid += max(dimbl.width(), dimtl.width());
|
|
dim.wid += max(dimbr.width(), dimtr.width());
|
|
int na = nasc(bv);
|
|
int asc = dyt(bv) + max(dimtl.ascent(), dimtr.ascent());
|
|
dim.asc = max(na, asc);
|
|
int nd = ndes(bv);
|
|
int des = dyb(bv) + max(dimbl.descent(), dimbr.descent());
|
|
dim.des = max(nd, des);
|
|
}
|
|
|
|
|
|
void InsetMathSideset::draw(PainterInfo & pi, int x, int y) const
|
|
{
|
|
Changer dummy2 = pi.base.changeEnsureMath();
|
|
BufferView & bv = *pi.base.bv;
|
|
nuc().draw(pi, x + dxn(bv), y);
|
|
if (!scriptl_)
|
|
bl().draw(pi, x , y);
|
|
if (!scriptr_)
|
|
br().draw(pi, x + dxr(bv), y);
|
|
Changer dummy = pi.base.changeScript();
|
|
if (scriptl_) {
|
|
bl().draw(pi, x , y + dyb(bv));
|
|
tl().draw(pi, x , y - dyt(bv));
|
|
}
|
|
if (scriptr_) {
|
|
br().draw(pi, x + dxr(bv), y + dyb(bv));
|
|
tr().draw(pi, x + dxr(bv), y - dyt(bv));
|
|
}
|
|
}
|
|
|
|
|
|
void InsetMathSideset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
|
|
{
|
|
bl().metricsT(mi, dim);
|
|
tl().metricsT(mi, dim);
|
|
br().metricsT(mi, dim);
|
|
tr().metricsT(mi, dim);
|
|
nuc().metricsT(mi, dim);
|
|
}
|
|
|
|
|
|
void InsetMathSideset::drawT(TextPainter & pain, int x, int y) const
|
|
{
|
|
// FIXME: BROKEN
|
|
nuc().drawT(pain, x + 1, y);
|
|
bl().drawT(pain, x + 1, y + 1 /*dy0()*/);
|
|
tl().drawT(pain, x + 1, y - 1 /*dy1()*/);
|
|
br().drawT(pain, x + 1, y + 1 /*dy0()*/);
|
|
tr().drawT(pain, x + 1, y - 1 /*dy1()*/);
|
|
}
|
|
|
|
|
|
|
|
bool InsetMathSideset::idxForward(Cursor & cur) const
|
|
{
|
|
if (!scriptl_ && cur.idx() == 1) {
|
|
// left => nucleus
|
|
cur.idx() = 0;
|
|
return true;
|
|
} else if (!scriptr_ && cur.idx() == 0) {
|
|
// nucleus => right
|
|
cur.idx() = 2 + scriptl_;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool InsetMathSideset::idxBackward(Cursor & cur) const
|
|
{
|
|
if (!scriptr_ && cur.idx() == (scriptl_ ? 3 : 2)) {
|
|
// right => nucleus
|
|
cur.idx() = 0;
|
|
return true;
|
|
} else if (!scriptl_ && cur.idx() == 0) {
|
|
// nucleus => left
|
|
cur.idx() = 1;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool InsetMathSideset::idxUpDown(Cursor & cur, bool up) const
|
|
{
|
|
// in nucleus?
|
|
if (cur.idx() == 0) {
|
|
// go up/down only if in the last position
|
|
// or in the first position
|
|
if ((scriptr_ && cur.pos() == cur.lastpos()) ||
|
|
(scriptl_ && cur.pos() == 0)) {
|
|
if (cur.pos() == 0)
|
|
cur.idx() = up ? 2 : 1;
|
|
else
|
|
cur.idx() = (up ? 3 : 2) + scriptl_;
|
|
cur.pos() = 0;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Are we 'up'?
|
|
if ((scriptl_ && cur.idx() == 2) ||
|
|
(scriptr_ && cur.idx() == (scriptl_ ? 4 : 3))) {
|
|
// can't go further up
|
|
if (up)
|
|
return false;
|
|
// otherwise go to first or last position in the nucleus
|
|
cur.idx() = 0;
|
|
if (cur.idx() == 2)
|
|
cur.pos() = 0;
|
|
else
|
|
cur.pos() = cur.lastpos();
|
|
return true;
|
|
}
|
|
|
|
// Are we 'down'?
|
|
if ((scriptl_ && cur.idx() == 1) ||
|
|
(scriptr_ && cur.idx() == (scriptl_ ? 3 : 2))) {
|
|
// can't go further down
|
|
if (!up)
|
|
return false;
|
|
// otherwise go to first or last position in the nucleus
|
|
cur.idx() = 0;
|
|
if (cur.idx() == 1)
|
|
cur.pos() = 0;
|
|
else
|
|
cur.pos() = cur.lastpos();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
void InsetMathSideset::write(WriteStream & os) const
|
|
{
|
|
MathEnsurer ensurer(os);
|
|
|
|
os << "\\sideset";
|
|
os << '{';
|
|
if (scriptl_) {
|
|
if (!bl().empty())
|
|
os << "_{" << bl() << '}';
|
|
if (!tl().empty())
|
|
os << "^{" << tl() << '}';
|
|
} else
|
|
os << bl();
|
|
os << "}{";
|
|
if (scriptr_) {
|
|
if (!br().empty())
|
|
os << "_{" << br() << '}';
|
|
if (!tr().empty())
|
|
os << "^{" << tr() << '}';
|
|
} else
|
|
os << br();
|
|
os << '}';
|
|
os << nuc();
|
|
|
|
if (lock_ && !os.latex())
|
|
os << "\\lyxlock ";
|
|
}
|
|
|
|
|
|
void InsetMathSideset::normalize(NormalStream & os) const
|
|
{
|
|
os << "[sideset ";
|
|
|
|
if (!bl().empty())
|
|
os << bl() << ' ';
|
|
if (scriptl_ && !tl().empty())
|
|
os << tl() << ' ';
|
|
|
|
if (!nuc().empty())
|
|
os << nuc() << ' ';
|
|
else
|
|
os << "[par]";
|
|
|
|
if (!br().empty())
|
|
os << br() << ' ';
|
|
if (scriptr_ && !tr().empty())
|
|
os << tr() << ' ';
|
|
os << ']';
|
|
}
|
|
|
|
|
|
void InsetMathSideset::mathmlize(MathStream & os) const
|
|
{
|
|
// FIXME This is only accurate if both scriptl_ and scriptr_ are true
|
|
if (!scriptl_)
|
|
os << MTag("mrow") << bl() << ETag("mrow");
|
|
if (scriptl_ || scriptr_) {
|
|
os << MTag("mmultiscripts");
|
|
|
|
if (nuc().empty())
|
|
os << "<mrow />";
|
|
else
|
|
os << MTag("mrow") << nuc() << ETag("mrow");
|
|
|
|
if (br().empty() || !scriptr_)
|
|
os << "<none />";
|
|
else
|
|
os << MTag("mrow") << br() << ETag("mrow");
|
|
if (tr().empty() || !scriptr_)
|
|
os << "<none />";
|
|
else
|
|
os << MTag("mrow") << tr() << ETag("mrow");
|
|
|
|
if (bl().empty() || !scriptl_)
|
|
os << "<none />";
|
|
else
|
|
os << MTag("mrow") << bl() << ETag("mrow");
|
|
if (tl().empty() || !scriptl_)
|
|
os << "<none />";
|
|
else
|
|
os << MTag("mrow") << tl() << ETag("mrow");
|
|
|
|
os << ETag("mmultiscripts");
|
|
}
|
|
if (!scriptr_)
|
|
os << MTag("mrow") << br() << ETag("mrow");
|
|
}
|
|
|
|
|
|
void InsetMathSideset::htmlize(HtmlStream & os) const
|
|
{
|
|
// FIXME This is only accurate if both scriptl_ and scriptr_ are true
|
|
bool const havebl = scriptl_ && !bl().empty();
|
|
bool const havetl = scriptl_ && !tl().empty();
|
|
bool const havebr = scriptr_ && !br().empty();
|
|
bool const havetr = scriptr_ && !tr().empty();
|
|
|
|
if (!scriptl_ && !bl().empty())
|
|
os << bl();
|
|
|
|
if (havebl && havetl)
|
|
os << MTag("span", "class='scripts'")
|
|
<< MTag("span") << tl() << ETag("span")
|
|
<< MTag("span") << bl() << ETag("span")
|
|
<< ETag("span");
|
|
else if (havebl)
|
|
os << MTag("sub", "class='math'") << bl() << ETag("sub");
|
|
else if (havetl)
|
|
os << MTag("sup", "class='math'") << tl() << ETag("sup");
|
|
|
|
if (!nuc().empty())
|
|
os << nuc();
|
|
|
|
if (havebr && havetr)
|
|
os << MTag("span", "class='scripts'")
|
|
<< MTag("span") << tr() << ETag("span")
|
|
<< MTag("span") << br() << ETag("span")
|
|
<< ETag("span");
|
|
else if (havebr)
|
|
os << MTag("sub", "class='math'") << br() << ETag("sub");
|
|
else if (havetr)
|
|
os << MTag("sup", "class='math'") << tr() << ETag("sup");
|
|
|
|
if (!scriptr_ && !br().empty())
|
|
os << br();
|
|
}
|
|
|
|
|
|
void InsetMathSideset::infoize(odocstream & os) const
|
|
{
|
|
os << "Sideset";
|
|
}
|
|
|
|
|
|
// the idea for dual scripts came from the eLyXer code
|
|
void InsetMathSideset::validate(LaTeXFeatures & features) const
|
|
{
|
|
if (features.runparams().math_flavor == OutputParams::MathAsHTML)
|
|
features.addCSSSnippet(
|
|
"span.scripts{display: inline-block; vertical-align: middle; text-align:center; font-size: 75%;}\n"
|
|
"span.scripts span {display: block;}\n"
|
|
"sub.math{font-size: 75%;}\n"
|
|
"sup.math{font-size: 75%;}");
|
|
features.require("amsmath");
|
|
InsetMathNest::validate(features);
|
|
}
|
|
|
|
} // namespace lyx
|