+
+#include <config.h>
+#include "Lsstream.h"
+
+#include "debug.h"
+#include "support.h"
+#include "support/LOstream.h"
+#include "support/LAssert.h"
+
#ifdef __GNUG__
#pragma implementation
#endif
#include "math_scriptinset.h"
-#include "support/LOstream.h"
+
+using std::ostream;
+using std::ostringstream;
MathScriptInset::MathScriptInset()
- : MathInset(2), up_(false), down_(false), limits_(0), symbol_(0)
-{}
+ : MathNestInset(2), limits_(0)
+{
+ script_[0] = false;
+ script_[1] = false;
+}
-MathScriptInset::MathScriptInset(bool up, bool down, MathInset * symbol)
- : MathInset(2), up_(up), down_(down), limits_(0), symbol_(symbol)
-{}
+MathScriptInset::MathScriptInset(bool up)
+ : MathNestInset(2), limits_(0)
+{
+ script_[0] = !up;
+ script_[1] = up;
+}
-MathScriptInset::MathScriptInset(MathScriptInset const & p)
- : MathInset(p), up_(p.up_), down_(p.down_),
- limits_(p.limits_), symbol_(p.symbol_ ? p.symbol_->clone() : 0)
-{}
+MathInset * MathScriptInset::clone() const
+{
+ return new MathScriptInset(*this);
+}
-MathScriptInset::~MathScriptInset()
+MathScriptInset const * MathScriptInset::asScriptInset() const
{
- delete symbol_;
+ return this;
}
-MathInset * MathScriptInset::clone() const
-{
- return new MathScriptInset(*this);
+MathScriptInset * MathScriptInset::asScriptInset()
+{
+ return this;
}
-bool MathScriptInset::up() const
+MathXArray const & MathScriptInset::up() const
{
- return up_;
+ return xcell(1);
}
-bool MathScriptInset::down() const
+MathXArray const & MathScriptInset::down() const
{
- return down_;
+ return xcell(0);
}
-void MathScriptInset::up(bool b)
+MathXArray & MathScriptInset::up()
{
- up_ = b;
+ return xcell(1);
}
-void MathScriptInset::down(bool b)
+MathXArray & MathScriptInset::down()
{
- down_ = b;
+ return xcell(0);
}
-bool MathScriptInset::idxRight(int &, int &) const
+void MathScriptInset::ensure(bool up)
{
- return false;
+ script_[up] = true;
}
-bool MathScriptInset::idxLeft(int &, int &) const
+int MathScriptInset::dy0(MathInset const * nuc) const
{
- return false;
+ 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;
}
-bool MathScriptInset::idxUp(int & idx, int & pos) const
+int MathScriptInset::dy1(MathInset const * nuc) const
{
- if (idx == 0 || !up())
- return false;
- idx = 0;
- pos = 0;
- return true;
+ 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;
}
-bool MathScriptInset::idxDown(int & idx, int & pos) const
+
+int MathScriptInset::dx0(MathInset const * nuc) const
{
- if (idx == 1 || !down())
- return false;
- idx = 1;
- pos = 0;
- return true;
+ lyx::Assert(hasDown());
+ return hasLimits(nuc) ? (width(nuc) - down().width()) / 2 : nwid(nuc);
}
-bool MathScriptInset::idxFirst(int & idx, int & pos) const
+
+int MathScriptInset::dx1(MathInset const * nuc) const
{
- idx = up() ? 0 : 1;
- pos = 0;
- return true;
+ lyx::Assert(hasUp());
+ return hasLimits(nuc) ? (width(nuc) - up().width()) / 2 : nwid(nuc);
}
-bool MathScriptInset::idxLast(int & idx, int & pos) const
+
+int MathScriptInset::dxx(MathInset const * nuc) const
{
- idx = down() ? 1 : 0;
- pos = cell(idx).size();
- return true;
+ //lyx::Assert(nuc());
+ return hasLimits(nuc) ? (width(nuc) - nwid(nuc)) / 2 : 0;
}
-bool MathScriptInset::idxFirstUp(int & idx, int & pos) const
+int MathScriptInset::ascent(MathInset const * nuc) const
{
- if (!up())
- return false;
- idx = 0;
- pos = 0;
- return true;
+ return dy1(nuc) + (hasUp() ? up().ascent() : 0);
}
-bool MathScriptInset::idxFirstDown(int & idx, int & pos) const
+int MathScriptInset::descent(MathInset const * nuc) const
{
- if (!down())
- return false;
- idx = 1;
- pos = 0;
- return true;
+ return dy0(nuc) + (hasDown() ? down().descent() : 0);
}
-bool MathScriptInset::idxLastUp(int & idx, int & pos) const
+int MathScriptInset::width(MathInset const * nuc) const
{
- if (!up())
- return false;
- idx = 0;
- pos = cell(idx).size();
- return true;
+ 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;
}
-bool MathScriptInset::idxLastDown(int & idx, int & pos) const
+int MathScriptInset::nwid(MathInset const * nuc) const
{
- if (!down())
- return false;
- idx = 1;
- pos = cell(idx).size();
- return true;
+ return nuc ?
+ nuc->width() :
+ mathed_char_width(LM_TC_TEX, mi_, '.');
}
-void MathScriptInset::Write(std::ostream & os, bool fragile) const
+int MathScriptInset::nasc(MathInset const * nuc) const
{
- if (symbol_) {
- symbol_->Write(os, fragile);
- if (limits())
- os << (limits() == 1 ? "\\limits" : "\\nolimits");
- }
- if (up()) {
- os << "^{";
- cell(0).Write(os, fragile);
- os << "}";
- }
- if (down()) {
- os << "_{";
- cell(1).Write(os, fragile);
- os << "}";
- }
- os << " ";
+ return nuc ? nuc->ascent()
+ : mathed_char_ascent(LM_TC_VAR, mi_, 'I');
}
-void MathScriptInset::idxDelete(int & idx, bool & popit, bool & deleteit)
+int MathScriptInset::ndes(MathInset const * nuc) const
{
- if (idx == 0)
- up(false);
- else
- down(false);
- popit = true;
- deleteit = !(up() || down());
+ 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);
}
-int MathScriptInset::limits() const
+void MathScriptInset::draw(Painter & pain, int x, int y) const
{
- return limits_;
+ //lyxerr << "unexpected call to MathScriptInset::draw()\n";
+ draw(0, pain, x, y);
}
-void MathScriptInset::limits(int limits)
+void MathScriptInset::draw(MathInset const * nuc, Painter & pain,
+ int x, int y) const
{
- limits_ = limits;
+ 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));
}
-bool MathScriptInset::hasLimits() const
-{
- return
- symbol_ && (limits_ == 1 || (limits_ == 0 && size() == LM_ST_DISPLAY));
+void MathScriptInset::write(MathWriteInfo & os) const
+{
+ //lyxerr << "unexpected call to MathScriptInset::write()\n";
+ write(0, os);
}
-void MathScriptInset::WriteNormal(std::ostream & os) const
+void MathScriptInset::write(MathInset const * nuc, MathWriteInfo & os) const
{
- if (limits() && symbol_)
- os << "[" << (limits() ? "limits" : "nolimits") << "]";
- if (up()) {
- os << "[superscript ";
- cell(0).WriteNormal(os);
- os << "] ";
+ if (nuc) {
+ nuc->write(os);
+ if (nuc->takesLimits()) {
+ if (limits_ == -1)
+ os << "\\nolimits ";
+ if (limits_ == 1)
+ os << "\\limits ";
+ }
}
- if (down()) {
- os << "[subscript ";
- cell(1).WriteNormal(os);
+ 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 << ']';
}
}
-void MathScriptInset::Metrics(MathStyles st)
+bool MathScriptInset::hasLimits(MathInset const * nuc) const
{
- size_ = st;
- MathStyles tt = smallerStyleScript(st);
-
- xcell(0).Metrics(tt);
- xcell(1).Metrics(tt);
-
- width_ = std::max(xcell(0).width(), xcell(1).width());
-
- if (hasLimits()) {
- symbol_->Metrics(st);
- int wid = symbol_->width();
- ascent_ = symbol_->ascent();
- descent_ = symbol_->descent();
- width_ = std::max(width_, wid);
- if (up()) {
- ascent_ += xcell(0).height() + 2;
- dy0_ = - (ascent_ - xcell(0).ascent());
- }
- if (down()) {
- descent_ += xcell(1).height() + 2;
- dy1_ = descent_ - xcell(1).descent();
- }
- dxx_ = (width_ - wid) / 2;
- dx0_ = (width_ - xcell(0).width()) / 2;
- dx1_ = (width_ - xcell(1).width()) / 2;
- } else {
- int asc;
- int des;
- int wid = 0;
- mathed_char_height(LM_TC_VAR, st, 'I', asc, des);
- if (symbol_) {
- symbol_->Metrics(st);
- wid = symbol_->width();
- asc = symbol_->ascent();
- des = symbol_->descent();
- }
- ascent_ = up() ? xcell(0).height() + asc : 0;
- descent_ = down() ? xcell(1).height() + des : 0;
- width_ += wid;
- dy0_ = - asc - xcell(0).descent();
- dy1_ = des + xcell(1).ascent();
- dx0_ = wid;
- dx1_ = wid;
- dxx_ = 0;
- }
+ return limits_ == 1 || (limits_ == 0 && nuc && nuc->isScriptable());
}
-void MathScriptInset::draw(Painter & pain, int x, int y)
-{
- xo(x);
- yo(y);
+void MathScriptInset::removeEmptyScripts()
+{
+ for (int i = 0; i <= 1; ++i)
+ if (script_[i] && !cell(i).size())
+ script_[i] = false;
+}
+
- if (symbol_)
- symbol_->draw(pain, x + dxx_, y);
- if (up())
- xcell(0).draw(pain, x + dx0_, y + dy0_);
- if (down())
- xcell(1).draw(pain, x + dx1_, y + dy1_);
+void MathScriptInset::removeScript(bool up)
+{
+ cell(up).clear();
+ script_[up] = false;
}
+
+
+bool MathScriptInset::has(bool up) const
+{
+ return script_[up];
+}
+
+
+bool MathScriptInset::hasUp() const
+{
+ 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