+
#include <config.h>
+#include "Lsstream.h"
+
#include "debug.h"
+#include "support.h"
#include "support/LOstream.h"
+#include "support/LAssert.h"
#ifdef __GNUG__
#pragma implementation
#include "math_scriptinset.h"
+using std::ostream;
+using std::ostringstream;
+
+
+MathScriptInset::MathScriptInset()
+ : MathNestInset(2), limits_(0)
+{
+ script_[0] = false;
+ script_[1] = false;
+}
+
MathScriptInset::MathScriptInset(bool up)
- : MathNestInset(1), up_(up)
-{}
+ : MathNestInset(2), limits_(0)
+{
+ script_[0] = !up;
+ script_[1] = up;
+}
MathInset * MathScriptInset::clone() const
}
-void MathScriptInset::write(std::ostream & os, bool fragile) const
+MathScriptInset const * MathScriptInset::asScriptInset() const
+{
+ return this;
+}
+
+
+MathScriptInset * MathScriptInset::asScriptInset()
+{
+ return this;
+}
+
+
+MathXArray const & MathScriptInset::up() const
+{
+ return xcell(1);
+}
+
+
+MathXArray const & MathScriptInset::down() const
+{
+ return xcell(0);
+}
+
+
+MathXArray & MathScriptInset::up()
+{
+ return xcell(1);
+}
+
+
+MathXArray & MathScriptInset::down()
+{
+ return xcell(0);
+}
+
+
+void MathScriptInset::ensure(bool up)
+{
+ script_[up] = true;
+}
+
+
+int MathScriptInset::dy0(MathInset const * nuc) const
+{
+ int nd = ndes(nuc);
+ if (!hasDown())
+ return nd;
+ int des = down().ascent();
+ if (hasLimits(nuc))
+ des += nd + 2;
+ else
+ des = std::max(des, nd);
+ return des;
+}
+
+
+int MathScriptInset::dy1(MathInset const * nuc) const
+{
+ int na = nasc(nuc);
+ if (!hasUp())
+ return na;
+ int asc = up().descent();
+ if (hasLimits(nuc))
+ asc += na + 2;
+ else
+ asc = std::max(asc, na);
+ asc = std::max(asc, mathed_char_ascent(LM_TC_VAR, mi_, 'I'));
+ return asc;
+}
+
+
+int MathScriptInset::dx0(MathInset const * nuc) const
+{
+ lyx::Assert(hasDown());
+ return hasLimits(nuc) ? (width(nuc) - down().width()) / 2 : nwid(nuc);
+}
+
+
+int MathScriptInset::dx1(MathInset const * nuc) const
+{
+ lyx::Assert(hasUp());
+ return hasLimits(nuc) ? (width(nuc) - up().width()) / 2 : nwid(nuc);
+}
+
+
+int MathScriptInset::dxx(MathInset const * nuc) const
+{
+ //lyx::Assert(nuc());
+ return hasLimits(nuc) ? (width(nuc) - nwid(nuc)) / 2 : 0;
+}
+
+
+int MathScriptInset::ascent(MathInset const * nuc) const
+{
+ return dy1(nuc) + (hasUp() ? up().ascent() : 0);
+}
+
+
+int MathScriptInset::descent(MathInset const * nuc) const
+{
+ return dy0(nuc) + (hasDown() ? down().descent() : 0);
+}
+
+
+int MathScriptInset::width(MathInset const * nuc) const
+{
+ int wid = 0;
+ if (hasLimits(nuc)) {
+ wid = nwid(nuc);
+ if (hasUp())
+ wid = std::max(wid, up().width());
+ if (hasDown())
+ wid = std::max(wid, down().width());
+ } else {
+ if (hasUp())
+ wid = std::max(wid, up().width());
+ if (hasDown())
+ wid = std::max(wid, down().width());
+ wid += nwid(nuc);
+ }
+ return wid;
+}
+
+
+int MathScriptInset::nwid(MathInset const * nuc) const
+{
+ return nuc ?
+ nuc->width() :
+ mathed_char_width(LM_TC_TEX, mi_, '.');
+}
+
+
+int MathScriptInset::nasc(MathInset const * nuc) const
{
- cell(0).write(os, fragile);
+ return nuc ? nuc->ascent()
+ : mathed_char_ascent(LM_TC_VAR, mi_, 'I');
}
-void MathScriptInset::metrics(MathStyles st) const
+int MathScriptInset::ndes(MathInset const * nuc) const
{
- size_ = st;
- xcell(0).metrics(st);
- width_ = xcell(0).width();
- ascent_ = xcell(0).ascent();
- descent_ = xcell(0).descent();
- //lyxerr << "MathScriptInset::metrics: w: " << width_ << " a: " << ascent_
- // << " d: " << descent_ << "\n";
+ return nuc ? nuc->descent()
+ : mathed_char_descent(LM_TC_VAR, mi_, 'I');
+}
+
+
+void MathScriptInset::metrics(MathMetricsInfo const & mi) const
+{
+ metrics(0, mi);
+}
+
+
+void MathScriptInset::metrics(MathInset const * nuc,
+ MathMetricsInfo const & mi) const
+{
+ MathNestInset::metrics(mi);
+ if (nuc)
+ nuc->metrics(mi);
+
+ ascent_ = ascent(nuc);
+ descent_ = descent(nuc);
+ width_ = width(nuc);
}
void MathScriptInset::draw(Painter & pain, int x, int y) const
+{
+ //lyxerr << "unexpected call to MathScriptInset::draw()\n";
+ draw(0, pain, x, y);
+}
+
+
+void MathScriptInset::draw(MathInset const * nuc, Painter & pain,
+ int x, int y) const
+{
+ if (nuc)
+ nuc->draw(pain, x + dxx(nuc), y);
+ else
+ drawStr(pain, LM_TC_TEX, mi_, x + dxx(nuc), y, ".");
+
+ if (hasUp())
+ up().draw(pain, x + dx1(nuc), y - dy1(nuc));
+
+ if (hasDown())
+ down().draw(pain, x + dx0(nuc), y + dy0(nuc));
+}
+
+
+void MathScriptInset::write(MathWriteInfo & os) const
+{
+ //lyxerr << "unexpected call to MathScriptInset::write()\n";
+ write(0, os);
+}
+
+
+void MathScriptInset::write(MathInset const * nuc, MathWriteInfo & os) const
+{
+ if (nuc) {
+ nuc->write(os);
+ if (nuc->takesLimits()) {
+ if (limits_ == -1)
+ os << "\\nolimits ";
+ if (limits_ == 1)
+ os << "\\limits ";
+ }
+ }
+ else
+ os << "{}";
+
+ if (hasDown() && down().data_.size())
+ os << "_{" << down().data_ << '}';
+
+ if (hasUp() && up().data_.size())
+ os << "^{" << up().data_ << '}';
+}
+
+
+void MathScriptInset::writeNormal(ostream & os) const
+{
+ //lyxerr << "unexpected call to MathScriptInset::writeNormal()\n";
+ writeNormal(0, os);
+}
+
+
+void MathScriptInset::writeNormal(MathInset const * nuc, ostream & os) const
+{
+ bool d = hasDown() && down().data_.size();
+ bool u = hasUp() && up().data_.size();
+
+ ostringstream osb;
+ if (nuc)
+ nuc->writeNormal(osb);
+ else
+ osb << "[par]";
+ string base = osb.str();
+
+ if (u && d) {
+ os << "[sup [sub " << osb.str() << " ";
+ down().data_.writeNormal(os);
+ os << "] ";
+ up().data_.writeNormal(os);
+ os << ']';
+ } else if (u) {
+ os << "[sup " << osb.str() << " ";
+ up().data_.writeNormal(os);
+ os << ']';
+ } else if (d) {
+ os << "[sub " << osb.str() << " ";
+ down().data_.writeNormal(os);
+ os << ']';
+ }
+}
+
+
+bool MathScriptInset::hasLimits(MathInset const * nuc) const
+{
+ return limits_ == 1 || (limits_ == 0 && nuc && nuc->isScriptable());
+}
+
+
+void MathScriptInset::removeEmptyScripts()
+{
+ for (int i = 0; i <= 1; ++i)
+ if (script_[i] && !cell(i).size())
+ script_[i] = false;
+}
+
+
+void MathScriptInset::removeScript(bool up)
+{
+ cell(up).clear();
+ script_[up] = false;
+}
+
+
+bool MathScriptInset::has(bool up) const
+{
+ return script_[up];
+}
+
+
+bool MathScriptInset::hasUp() const
{
- xo(x);
- yo(y);
- xcell(0).draw(pain, x, y);
+ return script_[1];
}
+
+
+bool MathScriptInset::hasDown() const
+{
+ return script_[0];
+}
+
+
+bool MathScriptInset::idxRight(MathInset::idx_type &,
+ MathInset::pos_type &) const
+{
+ return false;
+}
+
+
+bool MathScriptInset::idxLeft(MathInset::idx_type &,
+ MathInset::pos_type &) const
+{
+ return false;
+}
+
+
projects / lyx.git / blobdiff