#include "InsetMathScript.h"
#include "InsetMathBrace.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"
InsetMathScript::InsetMathScript(Buffer * buf)
- : InsetMathNest(buf, 1), cell_1_is_up_(false), limits_(0)
+ : InsetMathNest(buf, 1), cell_1_is_up_(false)
{}
InsetMathScript::InsetMathScript(Buffer * buf, bool up)
- : InsetMathNest(buf, 2), cell_1_is_up_(up), limits_(0)
+ : InsetMathNest(buf, 2), cell_1_is_up_(up)
{}
InsetMathScript::InsetMathScript(Buffer * buf, MathAtom const & at, bool up)
- : InsetMathNest(buf, 2), cell_1_is_up_(up), limits_(0)
+ : InsetMathNest(buf, 2), cell_1_is_up_(up)
{
LATTEST(nargs() >= 1);
cell(0).push_back(at);
if (!hasDown())
return nd;
int des = down().dimension(bv).ascent();
- if (hasLimits())
+ if (has_limits_)
des += nd + 2;
else {
int na = nasc(bv);
if (!hasUp())
return na;
int asc = up().dimension(bv).descent();
- if (hasLimits())
+ if (has_limits_)
asc += na + 2;
else {
int nd = ndes(bv);
{
LASSERT(hasDown(), return 0);
Dimension const dim = dimension(bv);
- return hasLimits() ? (dim.wid - down().dimension(bv).width()) / 2
+ return has_limits_ ? (dim.wid - down().dimension(bv).width()) / 2
: nwid(bv) + min(nker(&bv), 0);
}
{
LASSERT(hasUp(), return 0);
Dimension const dim = dimension(bv);
- return hasLimits() ? (dim.wid - up().dimension(bv).width()) / 2
+ return has_limits_ ? (dim.wid - up().dimension(bv).width()) / 2
: nwid(bv) + max(nker(&bv), 0);
}
int InsetMathScript::dxx(BufferView const & bv) const
{
Dimension const dim = dimension(bv);
- return hasLimits() ? (dim.wid - nwid(bv)) / 2 : 0;
+ return has_limits_ ? (dim.wid - nwid(bv)) / 2 : 0;
}
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, dim1, !hasLimits());
- if (nargs() > 2)
- cell(2).metrics(mi, dim2, !hasLimits());
+ {
+ // Keeps the changers local
+ Changer dummy2 = mi.base.changeEnsureMath();
+ cell(0).metrics(mi, dim0);
+ Changer dummy = mi.base.changeScript();
+ if (nargs() > 1)
+ cell(1).metrics(mi, dim1, !has_limits_);
+ if (nargs() > 2)
+ cell(2).metrics(mi, dim2, !has_limits_);
+ }
+ // we store this, because it is much easier
+ has_limits_ = hasLimits(mi.base.font);
dim.wid = 0;
BufferView & bv = *mi.base.bv;
if (hasDown())
dimdown = down().dimension(bv);
- if (hasLimits()) {
+ if (has_limits_) {
dim.wid = nwid(bv);
if (hasUp())
dim.wid = max(dim.wid, dimup.width());
}
-// 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
+bool InsetMathScript::hasLimits(FontInfo const & font) const
{
- // obvious cases
- if (limits_ == 1)
- return true;
- if (limits_ == -1)
+ if (font.style() != DISPLAY_STYLE)
return false;
-
- // we can only display limits if the nucleus wants some
- if (!allowsLimits())
- return false;
- // FIXME: this is some hardcoding done in InsetMathSymbol::metrics.
- if (!nuc().back()->isScriptable())
+ if (nuc().empty())
return false;
- if (nuc().back()->asSymbolInset()) {
- // \intop is an alias for \int\limits, \ointop == \oint\limits
- if (nuc().back()->asSymbolInset()->name().find(from_ascii("intop")) != string::npos)
- return true;
- // per default \int has limits beside the \int even in displayed formulas
- if (nuc().back()->asSymbolInset()->name().find(from_ascii("int")) != string::npos)
- return false;
- }
-
- // assume "real" limits for everything else
- return true;
+ Limits const lim = nuc().back()->limits() == AUTO_LIMITS
+ ? nuc().back()->defaultLimits() : nuc().back()->limits();
+ LASSERT(lim != AUTO_LIMITS, return false);
+ return lim == LIMITS;
}
return false;
// go up/down only if in the last position
// or in the first position of something with displayed limits
- if (cur.pos() == cur.lastpos() || (cur.pos() == 0 && hasLimits())) {
+ if (cur.pos() == cur.lastpos()
+ || (cur.pos() == 0 && has_limits_)) {
cur.idx() = idxOfScript(up);
cur.pos() = 0;
return true;
{
MathEnsurer ensurer(os);
- if (!nuc().empty()) {
+ if (!nuc().empty())
os << nuc();
- //if (nuc().back()->takesLimits()) {
- if (limits_ == -1)
- os << "\\nolimits ";
- if (limits_ == 1)
- os << "\\limits ";
- //}
- } else {
- if (os.firstitem())
- LYXERR(Debug::MATHED, "suppressing {} when writing");
- else
- os << "{}";
- }
+ else if (os.firstitem())
+ LYXERR(Debug::MATHED, "suppressing {} when writing");
+ else
+ os << "{}";
if (hasDown() /*&& !down().empty()*/)
os << "_{" << down() << '}';
{
bool d = hasDown() && !down().empty();
bool u = hasUp() && !up().empty();
- bool l = hasLimits();
+ // FIXME: the MathStream should be able to give us this information
+ bool l = has_limits_;
if (u && d)
ms << MTag(l ? "munderover" : "msubsup");
void InsetMathScript::infoize2(odocstream & os) const
{
- if (limits_)
- os << from_ascii(limits_ == 1 ? ", Displayed limits" : ", Inlined limits");
+ os << from_ascii(has_limits_ == 1 ? ", Displayed limits" : ", Inlined limits");
}
}
-void InsetMathScript::doDispatch(Cursor & cur, FuncRequest & cmd)
-{
- //LYXERR("InsetMathScript: request: " << cmd);
-
- 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;
- else if (cmd.argument() == "nolimits")
- limits_ = -1;
- else
- limits_ = 0;
- } else if (limits_ == 0)
- limits_ = hasLimits() ? -1 : 1;
- else
- limits_ = 0;
- return;
- }
-
- InsetMathNest::doDispatch(cur, cmd);
-}
-
-
-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
{
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