* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
- * \author André Pönitz
+ * \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetMathScript.h"
-#include "MathArray.h"
+
+#include "InsetMathBrace.h"
+#include "InsetMathSymbol.h"
+#include "MathData.h"
#include "MathStream.h"
#include "MathSupport.h"
-#include "InsetMathSymbol.h"
-#include "InsetMathFont.h"
-#include "DispatchResult.h"
+
+#include "BufferView.h"
#include "Cursor.h"
-#include "debug.h"
+#include "DispatchResult.h"
#include "FuncRequest.h"
-#include "Undo.h"
-
-#include <boost/assert.hpp>
+#include "FuncStatus.h"
+#include "LaTeXFeatures.h"
+#include "MetricsInfo.h"
+#include "support/debug.h"
+#include "support/gettext.h"
+#include "support/lassert.h"
-namespace lyx {
-using std::string;
-using std::max;
-using std::auto_ptr;
-using std::endl;
+using namespace std;
+namespace lyx {
-InsetMathScript::InsetMathScript()
- : InsetMathNest(1), cell_1_is_up_(false), limits_(0)
+InsetMathScript::InsetMathScript(Buffer * buf)
+ : InsetMathNest(buf, 1), cell_1_is_up_(false), limits_(0)
{}
-InsetMathScript::InsetMathScript(bool up)
- : InsetMathNest(2), cell_1_is_up_(up), limits_(0)
+InsetMathScript::InsetMathScript(Buffer * buf, bool up)
+ : InsetMathNest(buf, 2), cell_1_is_up_(up), limits_(0)
{}
-InsetMathScript::InsetMathScript(MathAtom const & at, bool up)
- : InsetMathNest(2), cell_1_is_up_(up), limits_(0)
+InsetMathScript::InsetMathScript(Buffer * buf, MathAtom const & at, bool up)
+ : InsetMathNest(buf, 2), cell_1_is_up_(up), limits_(0)
{
- BOOST_ASSERT(nargs() >= 1);
+ LATTEST(nargs() >= 1);
cell(0).push_back(at);
}
-auto_ptr<InsetBase> InsetMathScript::doClone() const
+Inset * InsetMathScript::clone() const
{
- return auto_ptr<InsetBase>(new InsetMathScript(*this));
+ return new InsetMathScript(*this);
}
}
-MathArray const & InsetMathScript::down() const
+MathData const & InsetMathScript::down() const
{
if (nargs() == 3)
return cell(2);
- BOOST_ASSERT(nargs() > 1);
+ LBUFERR(nargs() > 1);
return cell(1);
}
-MathArray & InsetMathScript::down()
+MathData & InsetMathScript::down()
{
if (nargs() == 3)
return cell(2);
- BOOST_ASSERT(nargs() > 1);
+ LBUFERR(nargs() > 1);
return cell(1);
}
-MathArray const & InsetMathScript::up() const
+MathData const & InsetMathScript::up() const
{
- BOOST_ASSERT(nargs() > 1);
+ LBUFERR(nargs() > 1);
return cell(1);
}
-MathArray & InsetMathScript::up()
+MathData & InsetMathScript::up()
{
- BOOST_ASSERT(nargs() > 1);
+ LBUFERR(nargs() > 1);
return cell(1);
}
{
if (nargs() == 1) {
// just nucleus so far
- cells_.push_back(MathArray());
+ cells_.push_back(MathData());
cell_1_is_up_ = up;
} else if (nargs() == 2 && !has(up)) {
if (up) {
cells_.push_back(cell(1));
cell(1).clear();
} else {
- cells_.push_back(MathArray());
+ cells_.push_back(MathData());
}
}
}
-MathArray const & InsetMathScript::nuc() const
+MathData const & InsetMathScript::nuc() const
{
return cell(0);
}
-MathArray & InsetMathScript::nuc()
+MathData & InsetMathScript::nuc()
{
return cell(0);
}
-namespace {
-
-bool isAlphaSymbol(MathAtom const & at)
-{
- if (at->asCharInset() ||
- (at->asSymbolInset() &&
- at->asSymbolInset()->isOrdAlpha()))
- return true;
-
- if (at->asFontInset()) {
- MathArray const & ar = at->asFontInset()->cell(0);
- for (size_t i = 0; i < ar.size(); ++i) {
- if (!(ar[i]->asCharInset() ||
- (ar[i]->asSymbolInset() &&
- ar[i]->asSymbolInset()->isOrdAlpha())))
- return false;
- }
- return true;
- }
- return false;
-}
-
-} // namespace anon
-
-
-int InsetMathScript::dy01(int asc, int des, int what) const
+int InsetMathScript::dy01(BufferView const & bv, int asc, int des, int what) const
{
int dasc = 0;
int slevel = 0;
- bool isCharBox = nuc().size() ? isAlphaSymbol(nuc().back()) : false;
+ bool isCharBox = !nuc().empty() ? isAlphaSymbol(nuc().back()) : false;
if (hasDown()) {
- dasc = down().ascent();
+ Dimension const & dimdown = down().dimension(bv);
+ dasc = dimdown.ascent();
slevel = nuc().slevel();
int ascdrop = dasc - slevel;
int desdrop = isCharBox ? 0 : des + nuc().sshift();
des = max(mindes, des);
}
if (hasUp()) {
+ Dimension const & dimup = up().dimension(bv);
int minasc = nuc().minasc();
int ascdrop = isCharBox ? 0 : asc - up().mindes();
- int udes = up().descent();
+ int udes = dimup.descent();
asc = udes + nuc().sshift();
asc = max(ascdrop, asc);
asc = max(minasc, asc);
}
-int InsetMathScript::dy0() const
+int InsetMathScript::dy0(BufferView const & bv) const
{
- int nd = ndes();
+ int nd = ndes(bv);
if (!hasDown())
return nd;
- int des = down().ascent();
+ int des = down().dimension(bv).ascent();
if (hasLimits())
des += nd + 2;
else {
- int na = nasc();
- des = dy01(na, nd, 0);
+ int na = nasc(bv);
+ des = dy01(bv, na, nd, 0);
}
return des;
}
-int InsetMathScript::dy1() const
+int InsetMathScript::dy1(BufferView const & bv) const
{
- int na = nasc();
+ int na = nasc(bv);
if (!hasUp())
return na;
- int asc = up().descent();
+ int asc = up().dimension(bv).descent();
if (hasLimits())
asc += na + 2;
else {
- int nd = ndes();
- asc = dy01(na, nd, 1);
+ int nd = ndes(bv);
+ asc = dy01(bv, na, nd, 1);
}
asc = max(asc, 5);
return asc;
}
-int InsetMathScript::dx0() const
+int InsetMathScript::dx0(BufferView const & bv) const
{
- BOOST_ASSERT(hasDown());
- return hasLimits() ? (dim_.wid - down().width()) / 2 : nwid();
+ LASSERT(hasDown(), return 0);
+ Dimension const dim = dimension(bv);
+ return hasLimits() ? (dim.wid - down().dimension(bv).width()) / 2
+ : nwid(bv) + min(nker(&bv), 0);
}
-int InsetMathScript::dx1() const
+int InsetMathScript::dx1(BufferView const & bv) const
{
- BOOST_ASSERT(hasUp());
- return hasLimits() ? (dim_.wid - up().width()) / 2 : nwid() + nker();
+ LASSERT(hasUp(), return 0);
+ Dimension const dim = dimension(bv);
+ return hasLimits() ? (dim.wid - up().dimension(bv).width()) / 2
+ : nwid(bv) + max(nker(&bv), 0);
}
-int InsetMathScript::dxx() const
+int InsetMathScript::dxx(BufferView const & bv) const
{
- return hasLimits() ? (dim_.wid - nwid()) / 2 : 0;
+ Dimension const dim = dimension(bv);
+ return hasLimits() ? (dim.wid - nwid(bv)) / 2 : 0;
}
-int InsetMathScript::nwid() const
+int InsetMathScript::nwid(BufferView const & bv) const
{
- return nuc().size() ? nuc().width() : 2;
+ return !nuc().empty() ? nuc().dimension(bv).width() : 2;
}
-int InsetMathScript::nasc() const
+int InsetMathScript::nasc(BufferView const & bv) const
{
- return nuc().size() ? nuc().ascent() : 5;
+ return !nuc().empty() ? nuc().dimension(bv).ascent() : 5;
}
-int InsetMathScript::ndes() const
+int InsetMathScript::ndes(BufferView const & bv) const
{
- return nuc().size() ? nuc().descent() : 0;
+ return !nuc().empty() ? nuc().dimension(bv).descent() : 0;
}
-int InsetMathScript::nker() const
+int InsetMathScript::nker(BufferView const * bv) const
{
- if (nuc().size()) {
- int kerning = nuc().kerning();
- return kerning > 0 ? kerning : 0;
- }
+ if (!nuc().empty())
+ return nuc().kerning(bv);
return 0;
}
-bool InsetMathScript::metrics(MetricsInfo & mi, Dimension & dim) const
+MathClass InsetMathScript::mathClass() const
{
- cell(0).metrics(mi);
- ScriptChanger dummy(mi.base);
+ // FIXME: this is a hack, since the class will not be correct if
+ // the nucleus has several elements or if the last element is a math macro
+ // or a macro argument proxy.
+ // The correct implementation would require to linearize the nucleus.
+ if (nuc().empty())
+ return MC_ORD;
+ else {
+ // return the class of last element since this is the one that counts.
+ MathClass mc = nuc().back()->mathClass();
+ return (mc == MC_UNKNOWN) ? MC_ORD : mc;
+ }
+}
+
+
+void InsetMathScript::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+ Changer dummy2 = mi.base.changeEnsureMath();
+ Dimension dim0;
+ Dimension dim1;
+ Dimension dim2;
+ cell(0).metrics(mi, dim0);
+ Changer dummy = mi.base.changeScript();
if (nargs() > 1)
- cell(1).metrics(mi);
+ cell(1).metrics(mi, dim1, !hasLimits());
if (nargs() > 2)
- cell(2).metrics(mi);
+ cell(2).metrics(mi, dim2, !hasLimits());
+
dim.wid = 0;
+ BufferView & bv = *mi.base.bv;
+ // FIXME: data copying... not very efficient.
+ Dimension dimup;
+ Dimension dimdown;
+ if (hasUp())
+ dimup = up().dimension(bv);
+ if (hasDown())
+ dimdown = down().dimension(bv);
+
if (hasLimits()) {
- dim.wid = nwid();
+ dim.wid = nwid(bv);
if (hasUp())
- dim.wid = max(dim.wid, up().width());
+ dim.wid = max(dim.wid, dimup.width());
if (hasDown())
- dim.wid = max(dim.wid, down().width());
+ dim.wid = max(dim.wid, dimdown.width());
} else {
if (hasUp())
- dim.wid = max(dim.wid, nker() + up().width());
+ dim.wid = max(dim.wid, max(nker(mi.base.bv), 0) + dimup.width());
if (hasDown())
- dim.wid = max(dim.wid, down().width());
- dim.wid += nwid();
+ dim.wid = max(dim.wid, min(nker(mi.base.bv), 0) + dimdown.width());
+ dim.wid += nwid(bv);
}
- int na = nasc();
+ int na = nasc(bv);
if (hasUp()) {
- int asc = dy1() + up().ascent();
+ int asc = dy1(bv) + dimup.ascent();
dim.asc = max(na, asc);
} else
dim.asc = na;
- int nd = ndes();
+ int nd = ndes(bv);
if (hasDown()) {
- int des = dy0() + down().descent();
+ int des = dy0(bv) + dimdown.descent();
dim.des = max(nd, des);
} else
dim.des = nd;
- metricsMarkers(dim);
- if (dim_ == dim)
- return false;
- dim_ = dim;
- return true;
}
void InsetMathScript::draw(PainterInfo & pi, int x, int y) const
{
- if (nuc().size())
- nuc().draw(pi, x + dxx(), y);
+ Changer dummy2 = pi.base.changeEnsureMath();
+ BufferView & bv = *pi.base.bv;
+ if (!nuc().empty())
+ nuc().draw(pi, x + dxx(bv), y);
else {
- nuc().setXY(*pi.base.bv, x + dxx(), y);
- if (editing(pi.base.bv))
- pi.draw(x + dxx(), y, char_type('.'));
+ nuc().setXY(bv, x + dxx(bv), y);
+ if (editing(&bv))
+ pi.draw(x + dxx(bv), y, char_type('.'));
}
- ScriptChanger dummy(pi.base);
+ Changer dummy = pi.base.changeScript();
if (hasUp())
- up().draw(pi, x + dx1(), y - dy1());
+ up().draw(pi, x + dx1(bv), y - dy1(bv));
if (hasDown())
- down().draw(pi, x + dx0(), y + dy0());
- drawMarkers(pi, x, y);
+ down().draw(pi, x + dx0(bv), y + dy0(bv));
}
void InsetMathScript::drawT(TextPainter & pain, int x, int y) const
{
- if (nuc().size())
- nuc().drawT(pain, x + dxx(), y);
+ // FIXME: BROKEN
+ if (!nuc().empty())
+ nuc().drawT(pain, x + 1, y);
if (hasUp())
- up().drawT(pain, x + dx1(), y - dy1());
+ up().drawT(pain, x + 1, y - 1 /*dy1()*/);
if (hasDown())
- down().drawT(pain, x + dx0(), y + dy0());
+ down().drawT(pain, x + 1, y + 1 /*dy0()*/);
}
+// FIXME: See InsetMathSymbol::takesLimits, which seems to attempt the
+// same in a hardcoded way. takeLimits use is currently commented out in
+// InsetMathScript::metrics. It seems that the mathop test is general
+// enough, but only time will tell.
+bool InsetMathScript::allowsLimits() const
+{
+ if (nuc().empty())
+ return false;
+ // Only makes sense for insets of mathop class
+ if (nuc().back()->mathClass() != MC_OP)
+ return false;
+ return true;
+}
+
bool InsetMathScript::hasLimits() const
{
return false;
// we can only display limits if the nucleus wants some
- if (!nuc().size())
+ if (!allowsLimits())
return false;
+ // FIXME: this is some hardcoding done in InsetMathSymbol::metrics.
if (!nuc().back()->isScriptable())
return false;
bool InsetMathScript::hasUp() const
{
- //lyxerr << "1up: " << bool(cell_1_is_up_) << endl;
- //lyxerr << "hasUp: " << bool(idxOfScript(true)) << endl;
+ //lyxerr << "1up: " << bool(cell_1_is_up_));
+ //lyxerr << "hasUp: " << bool(idxOfScript(true)));
return idxOfScript(true);
}
bool InsetMathScript::hasDown() const
{
- //lyxerr << "1up: " << bool(cell_1_is_up_) << endl;
- //lyxerr << "hasDown: " << bool(idxOfScript(false)) << endl;
+ //LYXERR0("1up: " << bool(cell_1_is_up_));
+ //LYXERR0("hasDown: " << bool(idxOfScript(false)));
return idxOfScript(false);
}
-InsetBase::idx_type InsetMathScript::idxOfScript(bool up) const
+Inset::idx_type InsetMathScript::idxOfScript(bool up) const
{
if (nargs() == 1)
return 0;
return (cell_1_is_up_ == up) ? 1 : 0;
if (nargs() == 3)
return up ? 1 : 2;
- BOOST_ASSERT(false);
- // Silence compiler
- return 0;
+ LASSERT(false, return 0);
}
-bool InsetMathScript::idxRight(Cursor &) const
+bool InsetMathScript::idxForward(Cursor &) const
{
return false;
}
-bool InsetMathScript::idxLeft(Cursor &) const
+bool InsetMathScript::idxBackward(Cursor &) const
{
return false;
}
}
// Are we 'up'?
- if (has(up) && cur.idx() == idxOfScript(true)) {
+ if (cur.idx() == idxOfScript(true)) {
// can't go further up
if (up)
return false;
}
// Are we 'down'?
- if (has(up) && cur.idx() == idxOfScript(false)) {
+ if (cur.idx() == idxOfScript(false)) {
// can't go further down
if (!up)
return false;
void InsetMathScript::write(WriteStream & os) const
{
- if (nuc().size()) {
+ MathEnsurer ensurer(os);
+
+ if (!nuc().empty()) {
os << nuc();
//if (nuc().back()->takesLimits()) {
if (limits_ == -1)
//}
} else {
if (os.firstitem())
- LYXERR(Debug::MATHED) << "suppressing {} when writing"
- << endl;
+ LYXERR(Debug::MATHED, "suppressing {} when writing");
else
os << "{}";
}
- if (hasDown() /*&& down().size()*/)
+ if (hasDown() /*&& !down().empty()*/)
os << "_{" << down() << '}';
- if (hasUp() /*&& up().size()*/)
- os << "^{" << up() << '}';
+ if (hasUp() /*&& !up().empty()*/) {
+ // insert space if up() is empty or an empty brace inset
+ // (see bug 8305)
+ if (os.latex() && (up().empty() ||
+ (up().size() == 1 && up().back()->asBraceInset() &&
+ up().back()->asBraceInset()->cell(0).empty())))
+ os << "^ {}";
+ else
+ os << "^{" << up() << '}';
+ }
if (lock_ && !os.latex())
os << "\\lyxlock ";
void InsetMathScript::normalize(NormalStream & os) const
{
- bool d = hasDown() && down().size();
- bool u = hasUp() && up().size();
+ bool d = hasDown() && !down().empty();
+ bool u = hasUp() && !up().empty();
if (u && d)
os << "[subsup ";
else if (d)
os << "[sub ";
- if (nuc().size())
+ if (!nuc().empty())
os << nuc() << ' ';
else
os << "[par]";
void InsetMathScript::maple(MapleStream & os) const
{
- if (nuc().size())
+ if (!nuc().empty())
os << nuc();
- if (hasDown() && down().size())
+ if (hasDown() && !down().empty())
os << '[' << down() << ']';
- if (hasUp() && up().size())
+ if (hasUp() && !up().empty())
os << "^(" << up() << ')';
}
void InsetMathScript::mathematica(MathematicaStream & os) const
{
- bool d = hasDown() && down().size();
- bool u = hasUp() && up().size();
+ bool d = hasDown() && !down().empty();
+ bool u = hasUp() && !up().empty();
- if (nuc().size()) {
+ if (!nuc().empty()) {
if (d)
os << "Subscript[" << nuc();
else
if (u)
os << "^(" << up() << ')';
- if (nuc().size()) {
+ if (!nuc().empty()) {
if (d)
os << ',' << down() << ']';
}
void InsetMathScript::mathmlize(MathStream & os) const
{
- bool d = hasDown() && down().size();
- bool u = hasUp() && up().size();
+ bool d = hasDown() && !down().empty();
+ bool u = hasUp() && !up().empty();
+ bool l = hasLimits();
if (u && d)
- os << MTag("msubsup");
+ os << MTag(l ? "munderover" : "msubsup");
else if (u)
- os << MTag("msup");
+ os << MTag(l ? "mover" : "msup");
else if (d)
- os << MTag("msub");
+ os << MTag(l ? "munder" : "msub");
- if (nuc().size())
- os << nuc();
+ if (!nuc().empty())
+ os << MTag("mrow") << nuc() << ETag("mrow");
else
- os << "<mrow/>";
+ os << "<mrow />";
+
+ if (u && d)
+ os << MTag("mrow") << down() << ETag("mrow")
+ << MTag("mrow") << up() << ETag("mrow")
+ << ETag(l ? "munderover" : "msubsup");
+ else if (u)
+ os << MTag("mrow") << up() << ETag("mrow") << ETag(l ? "mover" : "msup");
+ else if (d)
+ os << MTag("mrow") << down() << ETag("mrow") << ETag(l ? "munder" : "msub");
+}
+
+
+void InsetMathScript::htmlize(HtmlStream & os) const
+{
+ bool d = hasDown() && !down().empty();
+ bool u = hasUp() && !up().empty();
+
+ if (!nuc().empty())
+ os << nuc();
if (u && d)
- os << down() << up() << ETag("msubsup");
+ os << MTag("span", "class='scripts'")
+ << MTag("span") << up() << ETag("span")
+ << MTag("span") << down() << ETag("span")
+ << ETag("span");
else if (u)
- os << up() << ETag("msup");
+ os << MTag("sup", "class='math'") << up() << ETag("sup");
else if (d)
- os << down() << ETag("msub");
+ os << MTag("sub", "class='math'") << down() << ETag("sub");
}
void InsetMathScript::octave(OctaveStream & os) const
{
- if (nuc().size())
+ if (!nuc().empty())
os << nuc();
- if (hasDown() && down().size())
+ if (hasDown() && !down().empty())
os << '[' << down() << ']';
- if (hasUp() && up().size())
+ if (hasUp() && !up().empty())
os << "^(" << up() << ')';
}
void InsetMathScript::infoize2(odocstream & os) const
{
if (limits_)
- os << (limits_ == 1 ? ", Displayed limits" : ", Inlined limits");
+ os << from_ascii(limits_ == 1 ? ", Displayed limits" : ", Inlined limits");
}
-bool InsetMathScript::notifyCursorLeaves(Cursor & cur)
+bool InsetMathScript::notifyCursorLeaves(Cursor const & old, Cursor & cur)
{
- InsetMathNest::notifyCursorLeaves(cur);
+ InsetMathNest::notifyCursorLeaves(old, cur);
- //lyxerr << "InsetMathScript::notifyCursorLeaves: 1 " << cur << endl;
+ //LYXERR0("InsetMathScript::notifyCursorLeaves: 1 " << cur);
- // remove empty scripts if possible
- if (nargs() > 2) {
- // Case of two scripts. In this case, 1 = super, 2 = sub
- if (cur.idx() == 2 && cell(2).empty()) {
+ // Remove empty scripts if possible:
+
+ // The case of two scripts, but only one got empty (1 = super, 2 = sub).
+ // We keep the script inset, but remove the empty script.
+ if (nargs() > 2 && (!cell(1).empty() || !cell(2).empty())) {
+ if (cell(2).empty()) {
// must be a subscript...
- recordUndoInset(cur);
+ old.recordUndoInset();
removeScript(false);
+ cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
return true;
- } else if (cur.idx() == 1 && cell(1).empty()) {
+ } else if (cell(1).empty()) {
// must be a superscript...
- recordUndoInset(cur);
+ old.recordUndoInset();
removeScript(true);
+ cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
return true;
}
- } else if (nargs() > 1 && cur.idx() == 1 && cell(1).empty()) {
- // could be either subscript or super script
- recordUndoInset(cur);
- removeScript(cell_1_is_up_);
+ }
+ // Now the two suicide cases:
+ // * we have only one script which is empty
+ // * we have two scripts which are both empty.
+ // The script inset is removed completely.
+ if ((nargs() == 2 && cell(1).empty())
+ || (nargs() == 3 && cell(1).empty() && cell(2).empty())) {
+ // Make undo step. We cannot use cur for this because
+ // it does not necessarily point to us anymore. But we
+ // should be on top of the cursor old.
+ Cursor insetCur = old;
+ int scriptSlice = insetCur.find(this);
+ LASSERT(scriptSlice != -1, /**/);
+ insetCur.cutOff(scriptSlice);
+ insetCur.recordUndoInset();
+
// Let the script inset commit suicide. This is
// modelled on Cursor.pullArg(), but tries not to
// invoke notifyCursorLeaves again and does not touch
// cur (since the top slice will be deleted
- // afterwards))
- MathArray ar = cell(0);
- Cursor tmpcur = cur;
- tmpcur.pop();
- tmpcur.cell().erase(tmpcur.pos());
- tmpcur.cell().insert(tmpcur.pos(), ar);
+ // afterwards)
+ MathData ar = cell(0);
+ insetCur.pop();
+ insetCur.cell().erase(insetCur.pos());
+ insetCur.cell().insert(insetCur.pos(), ar);
+
+ // redraw
+ cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
return true;
}
- //lyxerr << "InsetMathScript::notifyCursorLeaves: 2 " << cur << endl;
+ //LYXERR0("InsetMathScript::notifyCursorLeaves: 2 " << cur);
return false;
}
void InsetMathScript::doDispatch(Cursor & cur, FuncRequest & cmd)
{
- //lyxerr << "InsetMathScript: request: " << cmd << std::endl;
+ //LYXERR("InsetMathScript: request: " << cmd);
- if (cmd.action == LFUN_MATH_LIMITS) {
+ if (cmd.action() == LFUN_MATH_LIMITS) {
+ // only when nucleus allows this
+ if (!allowsLimits())
+ return;
+ cur.recordUndoInset();
if (!cmd.argument().empty()) {
if (cmd.argument() == "limits")
limits_ = 1;
}
+bool InsetMathScript::getStatus(Cursor & cur, FuncRequest const & cmd,
+ FuncStatus & flag) const
+{
+ if (cmd.action() == LFUN_MATH_LIMITS) {
+ // only when nucleus allows this
+ if (allowsLimits()) {
+ if (!cmd.argument().empty()) {
+ if (cmd.argument() == "limits")
+ flag.setOnOff(limits_ == 1);
+ else if (cmd.argument() == "nolimits")
+ flag.setOnOff(limits_ == -1);
+ else
+ flag.setOnOff(limits_ == 0);
+ }
+ flag.setEnabled(true);
+ } else
+ flag.setEnabled(false);
+ return true;
+ }
+
+ return InsetMathNest::getStatus(cur, cmd, flag);
+}
+
+
+// the idea for dual scripts came from the eLyXer code
+void InsetMathScript::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%;}");
+ InsetMathNest::validate(features);
+}
+
} // namespace lyx
projects / lyx.git / blobdiff