X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2Fmath_cursor.C;h=ca2b35904f9b371e1554971a37f62b03d1bc05e3;hb=28c690f63c66d66beb2635fe5d28a6dd45d3c911;hp=90d0eeb4ebec8b2ed4672404b52afbd081f53ecf;hpb=d586e9e8564753e3998d23bdaad6effda338a009;p=lyx.git diff --git a/src/mathed/math_cursor.C b/src/mathed/math_cursor.C index 90d0eeb4eb..ca2b35904f 100644 --- a/src/mathed/math_cursor.C +++ b/src/mathed/math_cursor.C @@ -24,6 +24,7 @@ #include #include "support/lstrings.h" +#include "support/LAssert.h" #include "debug.h" #include "LColor.h" #include "Painter.h" @@ -33,23 +34,21 @@ #include "math_factory.h" #include "math_arrayinset.h" #include "math_charinset.h" -#include "math_decorationinset.h" #include "math_deliminset.h" -#include "math_funcinset.h" -#include "math_macro.h" -#include "math_macrotable.h" #include "math_matrixinset.h" -#include "math_scopeinset.h" #include "math_scriptinset.h" #include "math_spaceinset.h" +#include "math_specialcharinset.h" #include "math_parser.h" +#define FILEDEBUG 0 + using std::endl; using std::min; using std::max; +using std::swap; using std::isalnum; - namespace { struct Selection @@ -63,8 +62,9 @@ struct Selection if (i1.idx_ == i2.idx_) data_.push_back(MathArray(i1.cell(), i1.pos_, i2.pos_)); else { - std::vector indices = i1.par_->idxBetween(i1.idx_, i2.idx_); - for (unsigned i = 0; i < indices.size(); ++i) + std::vector indices = + (*i1.par_)->idxBetween(i1.idx_, i2.idx_); + for (MathInset::idx_type i = 0; i < indices.size(); ++i) data_.push_back(i1.cell(indices[i])); } } @@ -77,7 +77,8 @@ struct Selection if (i1.idx_ == i2.idx_) { i1.cell().erase(i1.pos_, i2.pos_); } else { - std::vector indices = i1.par_->idxBetween(i1.idx_, i2.idx_); + std::vector indices = + (*i1.par_)->idxBetween(i1.idx_, i2.idx_); for (unsigned i = 0; i < indices.size(); ++i) i1.cell(indices[i]).erase(); } @@ -86,7 +87,8 @@ struct Selection void paste(MathCursor & cursor) const { - cursor.insert(glue()); + MathArray ar = glue(); + cursor.paste(ar); } // glues selection to one cell @@ -110,84 +112,97 @@ struct Selection Selection theSelection; +#if FILEDEBUG std::ostream & operator<<(std::ostream & os, MathCursorPos const & p) { - os << "(par: " << p.par_ << " idx: " << p.idx_ - << " pos: " << p.pos_ << ")"; + os << "(par: " << p.par_ << " idx: " << p.idx_ << " pos: " << p.pos_ << ")"; return os; } +#endif } -MathCursor::MathCursor(InsetFormulaBase * formula) - : formula_(formula), lastcode_(LM_TC_VAR), imacro_(0), selection_(false) +MathCursor::MathCursor(InsetFormulaBase * formula, bool left) + : formula_(formula), lastcode_(LM_TC_VAR), selection_(false) { - first(); + left ? first() : last(); } -MathCursor::~MathCursor() +void MathCursor::push(MathAtom & t) { - delete imacro_; + //cerr << "Entering atom "; t->write(cerr, false); cerr << " left\n"; + MathCursorPos p; + p.par_ = &t; + Cursor_.push_back(p); } -void MathCursor::pushLeft(MathInset * par) +void MathCursor::pushLeft(MathAtom & t) { - MathCursorPos p; - p.par_ = par; - par->idxFirst(p.idx_, p.pos_); - Cursor_.push_back(p); + //cerr << "Entering atom "; t->write(cerr, false); cerr << " left\n"; + push(t); + t->idxFirst(idx(), pos()); } -void MathCursor::pushRight(MathInset * par) +void MathCursor::pushRight(MathAtom & t) { + //cerr << "Entering atom "; t->write(cerr, false); cerr << " right\n"; posLeft(); - MathCursorPos p; - p.par_ = par; - par->idxLast(p.idx_, p.pos_); - Cursor_.push_back(p); + push(t); + t->idxLast(idx(), pos()); } bool MathCursor::popLeft() { + //cerr << "Leaving atom "; par()->write(cerr, false); cerr << " left\n"; if (Cursor_.size() <= 1) return false; + //if (nextInset()) + // nextInset()->removeEmptyScripts(); Cursor_.pop_back(); + //if (nextAtom()) + // nextAtom()->removeEmptyScripts(); return true; } + bool MathCursor::popRight() { + //cerr << "Leaving atom "; par()->write(cerr, false); cerr << " right\n"; if (Cursor_.size() <= 1) return false; + //if (nextInset()) + // nextInset()->removeEmptyScripts(); Cursor_.pop_back(); + //if (nextInset()) + // nextInset()->removeEmptyScripts(); posRight(); return true; } -MathInset * MathCursor::parInset(int i) const -{ - return Cursor_[i].par_; -} - +#if FILEDEBUG void MathCursor::dump(char const * what) const { - return; - lyxerr << "MC: " << what << "\n"; for (unsigned i = 0; i < Cursor_.size(); ++i) lyxerr << " i: " << i - << " pos: " << Cursor_[i].pos_ + << " Cursor: pos: " << Cursor_[i].pos_ << " idx: " << Cursor_[i].idx_ << " par: " << Cursor_[i].par_ << "\n"; - //lyxerr << " sel: " << selection_ << " data: " << array() << "\n"; + for (unsigned i = 0; i < Anchor_.size(); ++i) + lyxerr << " i: " << i + << " Anchor: pos: " << Anchor_[i].pos_ + << " idx: " << Anchor_[i].idx_ + << " par: " << Anchor_[i].par_ << "\n"; + + lyxerr << " sel: " << selection_ << "\n"; } @@ -195,7 +210,6 @@ void MathCursor::seldump(char const * str) const { //lyxerr << "SEL: " << str << ": '" << theSelection << "'\n"; //dump(" Pos"); - return; lyxerr << "\n\n\n=================vvvvvvvvvvvvv======================= " << str << "\ntheSelection: " << selection_ @@ -210,40 +224,63 @@ void MathCursor::seldump(char const * str) const lyxerr << "\n===================^^^^^^^^^^^^=====================\n\n\n"; } +#else + +void MathCursor::seldump(char const *) const {} +void MathCursor::dump(char const *) const {} + +#endif + bool MathCursor::isInside(MathInset const * p) const { for (unsigned i = 0; i < Cursor_.size(); ++i) - if (parInset(i) == p) + if (Cursor_[i].par_->nucleus() == p) return true; return false; } -bool MathCursor::openable(MathInset * p, bool sel, bool useupdown) const +bool MathCursor::openable(MathAtom const & t, bool sel) const { - if (!p) + if (!t->isActive()) return false; - if (!(p->isActive() || (useupdown && p->isScriptInset()))) + if (t->asScriptInset()) return false; if (sel) { // we can't move into anything new during selection if (Cursor_.size() == Anchor_.size()) return false; - if (p != Anchor_[Cursor_.size()].par_) + if (&t != Anchor_[Cursor_.size()].par_) return false; } return true; } +bool MathCursor::positionable(MathAtom const & t, int x, int y) const +{ + if (selection_) { + // we can't move into anything new during selection + if (Cursor_.size() == Anchor_.size()) + return 0; + //if (t != Anchor_[Cursor_.size()].par_) + // return 0; + } + + return t->nargs() && t->covers(x, y); +} + + bool MathCursor::posLeft() { if (pos() == 0) return false; + --pos(); + return true; } @@ -252,7 +289,9 @@ bool MathCursor::posRight() { if (pos() == size()) return false; + ++pos(); + return true; } @@ -260,21 +299,16 @@ bool MathCursor::posRight() bool MathCursor::left(bool sel) { dump("Left 1"); - if (imacro_) { - // was MacroModeBack() - if (!imacro_->name().empty()) { - imacro_->setName(imacro_->name().substr(0, imacro_->name().length()-1)); - imacro_->metrics(imacro_->size()); - } else - macroModeClose(); + if (inMacroMode()) { + macroModeClose(); + lastcode_ = LM_TC_VAR; return true; } selHandle(sel); lastcode_ = LM_TC_VAR; - MathInset * p = prevInset(); - if (openable(p, sel, false)) { - pushRight(p); + if (hasPrevAtom() && openable(prevAtom(), sel)) { + pushRight(prevAtom()); return true; } @@ -285,16 +319,16 @@ bool MathCursor::left(bool sel) bool MathCursor::right(bool sel) { dump("Right 1"); - if (imacro_) { + if (inMacroMode()) { macroModeClose(); + lastcode_ = LM_TC_VAR; return true; } selHandle(sel); lastcode_ = LM_TC_VAR; - MathInset * p = nextInset(); - if (openable(p, sel, false)) { - pushLeft(p); + if (hasNextAtom() && openable(nextAtom(), sel)) { + pushLeft(nextAtom()); return true; } @@ -305,7 +339,7 @@ bool MathCursor::right(bool sel) void MathCursor::first() { Cursor_.clear(); - pushLeft(outerPar()); + pushLeft(formula_->par()); } @@ -318,53 +352,52 @@ void MathCursor::last() void MathCursor::setPos(int x, int y) { - dump("setPos 1"); + //dump("setPos 1"); //lyxerr << "MathCursor::setPos x: " << x << " y: " << y << "\n"; macroModeClose(); lastcode_ = LM_TC_VAR; first(); - cursor().par_ = outerPar(); + cursor().par_ = &formula_->par(); while (1) { - idx() = -1; - cursor().pos_ = -1; - //lyxerr << "found idx: " << idx_ << " cursor: " << pos() << "\n"; + idx() = 0; + cursor().pos_ = 0; + //lyxerr << "found idx: " << idx() << " cursor: " << pos() << "\n"; int distmin = 1 << 30; // large enough - for (int i = 0; i < par()->nargs(); ++i) { + for (unsigned int i = 0; i < par()->nargs(); ++i) { MathXArray const & ar = par()->xcell(i); int x1 = x - ar.xo(); int y1 = y - ar.yo(); - int c = ar.x2pos(x1); + MathXArray::size_type c = ar.x2pos(x1); int xx = abs(x1 - ar.pos2x(c)); int yy = abs(y1); //lyxerr << "idx: " << i << " xx: " << xx << " yy: " << yy // << " c: " << c << " xo: " << ar.xo() << "\n"; if (yy + xx <= distmin) { - distmin = yy + xx; - idx() = i; - pos() = c; + distmin = yy + xx; + idx() = i; + pos() = c; } } //lyxerr << "found idx: " << idx() << " cursor: " // << pos() << "\n"; - MathInset * n = nextInset(); - MathInset * p = prevInset(); - if (openable(n, selection_, true) && n->covers(x, y)) - pushLeft(n); - else if (openable(p, selection_, true) && p->covers(x, y)) - pushRight(p); + if (hasNextAtom() && positionable(nextAtom(), x, y)) + pushLeft(nextAtom()); + else if (hasPrevAtom() && positionable(prevAtom(), x, y)) + pushRight(prevAtom()); else break; } - dump("setPos 2"); + //dump("setPos 2"); } -void MathCursor::home() +void MathCursor::home(bool sel) { dump("home 1"); + selHandle(sel); macroModeClose(); lastcode_ = LM_TC_VAR; if (!par()->idxHome(idx(), pos())) @@ -373,9 +406,10 @@ void MathCursor::home() } -void MathCursor::end() +void MathCursor::end(bool sel) { dump("end 1"); + selHandle(sel); macroModeClose(); lastcode_ = LM_TC_VAR; if (!par()->idxEnd(idx(), pos())) @@ -390,55 +424,40 @@ void MathCursor::plainErase() } -void MathCursor::insert(char c, MathTextCodes t) +void MathCursor::plainInsert(MathAtom const & t) { - //lyxerr << "inserting '" << c << "'\n"; - if (selection_) - selDel(); + array().insert(pos(), t); + ++pos(); +} - if (t != LM_TC_VAR) - lastcode_ = t; - if (imacro_ && !(MathIsAlphaFont(t) || t == LM_TC_VAR)) - macroModeClose(); - - if (imacro_) { - if (MathIsAlphaFont(t) || t == LM_TC_VAR) { - // was MacroModeinsert(c); - imacro_->setName(imacro_->name() + c); - return; - } - } - - array().insert(pos(), new MathCharInset(c, t)); - posRight(); +void MathCursor::insert(char c, MathTextCodes t) +{ + //lyxerr << "inserting '" << c << "'\n"; + plainInsert(MathAtom(new MathCharInset(c, t))); } -void MathCursor::insert(MathInset * p) +void MathCursor::insert(MathAtom const & t) { macroModeClose(); if (selection_) { - if (p->nargs()) + if (t->nargs()) selCut(); else selDel(); } - array().insert(pos(), p); - posRight(); + plainInsert(t); } -void MathCursor::niceInsert(MathInset * p) +void MathCursor::niceInsert(MathAtom const & t) { - if (!p) { - lyxerr << "should not happen\n"; - return; - } selCut(); - insert(p); + insert(t); // inserting invalidates the pointer! + MathAtom const & p = prevAtom(); if (p->nargs()) { posLeft(); right(); // do not push for e.g. MathSymbolInset @@ -459,31 +478,43 @@ void MathCursor::insert(MathArray const & ar) } +void MathCursor::paste(MathArray const & ar) +{ + Anchor_ = Cursor_; + selection_ = true; + array().insert(pos(), ar); + pos() += ar.size(); +} + + void MathCursor::backspace() { - if (inMacroMode()) { - left(); + if (pos() == 0) { + pullArg(false); return; - } + } - if (posLeft()) { - plainErase(); + if (selection_) { + selDel(); return; } - if (size()) { - pullArg(false); - return; + MathScriptInset * p = prevAtom()->asScriptInset(); + if (p) { + p->removeScript(p->hasUp()); + // Don't delete if there is anything left + if (p->hasUp() || p->hasDown()) + return; } - erase(); + --pos(); + plainErase(); } void MathCursor::erase() { - dump("erase 1"); - if (imacro_) + if (inMacroMode()) return; if (selection_) { @@ -492,7 +523,7 @@ void MathCursor::erase() } // delete empty cells if necessary - if (pos() == 0 && array().empty()) { + if (array().empty()) { bool popit; bool removeit; par()->idxDelete(idx(), popit, removeit); @@ -501,10 +532,18 @@ void MathCursor::erase() return; } - if (pos() < size()) - plainErase(); + if (pos() == size()) + return; + + MathScriptInset * p = nextAtom()->asScriptInset(); + if (p) { + p->removeScript(p->hasUp()); + // Don't delete if there is anything left + if (p->hasUp() || p->hasDown()) + return; + } - dump("erase 2"); + plainErase(); } @@ -528,31 +567,26 @@ bool MathCursor::up(bool sel) macroModeClose(); selHandle(sel); - if (selection_) - return goUp(); - - // check whether we could move into an inset on the right or on the left - MathInset * p = nextInset(); - if (p) { - int idxx, poss; - if (p->idxFirstUp(idxx, poss)) { - pushLeft(p); - idx() = idxx; - pos() = poss; - dump("up 3"); - return true; + if (!selection_) { + // check whether we could move into a superscript + if (hasPrevAtom()) { + MathAtom & p = prevAtom(); + if (p->asScriptInset() && p->asScriptInset()->hasUp()) { + pushRight(p); + idx() = 1; + pos() = size(); + return true; + } } - } - p = prevInset(); - if (p) { - int idxx, poss; - if (p->idxLastUp(idxx, poss)) { - pushRight(p); - idx() = idxx; - pos() = poss; - dump("up 4"); - return true; + if (hasNextAtom()) { + MathAtom & n = nextAtom(); + if (n->asScriptInset() && n->asScriptInset()->hasUp()) { + pushLeft(n); + idx() = 1; + pos() = 0; + return true; + } } } @@ -566,33 +600,26 @@ bool MathCursor::down(bool sel) macroModeClose(); selHandle(sel); - if (selection_) - return goDown(); - - // check whether we could move into an inset on the right or on the left - MathInset * p = nextInset(); - if (p) { - int idxx = 0; - int poss = 0; - if (p->idxFirstDown(idxx, poss)) { - pushLeft(p); - idx() = idxx; - pos() = poss; - dump("Down 3"); - return true; + if (!selection_) { + // check whether we could move into a subscript + if (hasPrevAtom()) { + MathAtom & p = prevAtom(); + if (p->asScriptInset() && p->asScriptInset()->hasDown()) { + pushRight(p); + idx() = 0; + pos() = size(); + return true; + } } - } - p = prevInset(); - if (p) { - int idxx = 0; - int poss = 0; - if (p->idxLastDown(idxx, poss)) { - pushRight(p); - idx() = idxx; - pos() = poss; - dump("Down 4"); - return true; + if (hasNextAtom()) { + MathAtom & n = nextAtom(); + if (n->asScriptInset() && n->asScriptInset()->hasDown()) { + pushLeft(n); + idx() = 0; + pos() = 0; + return true; + } } } @@ -602,12 +629,14 @@ bool MathCursor::down(bool sel) bool MathCursor::toggleLimits() { - MathScriptInset * p = prevScriptInset(); - if (!p) + if (!hasPrevAtom()) return false; - int old = p->limits(); - p->limits(old < 0 ? 1 : -1); - return old != p->limits(); + MathScriptInset * t = prevAtom()->asScriptInset(); + if (!t) + return false; + int old = t->limits(); + t->limits(old < 0 ? 1 : -1); + return old != t->limits(); } @@ -617,28 +646,35 @@ void MathCursor::setSize(MathStyles size) } - -void MathCursor::macroModeOpen() +void MathCursor::macroModeClose() { - if (!imacro_) { - imacro_ = new MathFuncInset(""); - array().insert(pos(), imacro_); - ++pos(); - //insert(imacro_); - } else - lyxerr << "Math Warning: Already in macro mode" << endl; + string s = macroName(); + if (s.size()) { + size_type old = pos(); + pos() -= s.size(); + array().erase(pos(), old); + interpret(s); + } } -void MathCursor::macroModeClose() +int MathCursor::macroNamePos() const { - if (imacro_) { - string name = imacro_->name(); - posLeft(); - plainErase(); - imacro_ = 0; - interpret("\\" + name); + for (int i = pos() - 1; i >= 0; --i) { + MathAtom & p = array().at(i); + if (p->code() == LM_TC_TEX && p->getChar() == '\\') + return i; } + return -1; +} + + +string MathCursor::macroName() const +{ + string s; + for (int i = macroNamePos(); i >= 0 && i < int(pos()); ++i) + s += array().at(i)->getChar(); + return s; } @@ -679,7 +715,8 @@ void MathCursor::selPaste() { seldump("selPaste"); theSelection.paste(*this); - selClear(); + theSelection.grab(*this); + //selClear(); } @@ -732,7 +769,8 @@ void MathCursor::drawSelection(Painter & pain) const int y2 = c.yo() + c.descent(); pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection); } else { - std::vector indices = i1.par_->idxBetween(i1.idx_, i2.idx_); + std::vector indices + = (*i1.par_)->idxBetween(i1.idx_, i2.idx_); for (unsigned i = 0; i < indices.size(); ++i) { MathXArray & c = i1.xcell(indices[i]); int x1 = c.xo(); @@ -745,13 +783,6 @@ void MathCursor::drawSelection(Painter & pain) const } -MathTextCodes MathCursor::nextCode() const -{ - //return (pos() == size()) ? LM_TC_VAR : nextInset()->code(); - return LM_TC_VAR; -} - - void MathCursor::handleFont(MathTextCodes t) { macroModeClose(); @@ -761,23 +792,15 @@ void MathCursor::handleFont(MathTextCodes t) getSelection(i1, i2); if (i1.idx_ == i2.idx_) { MathArray & ar = i1.cell(); - for (int pos = i1.pos_; pos != i2.pos_; ++pos) - ar.nextInset(pos)->handleFont(t); + for (MathInset::pos_type pos = i1.pos_; pos != i2.pos_; ++pos) + ar.at(pos)->handleFont(t); } } else lastcode_ = (lastcode_ == t) ? LM_TC_VAR : t; } -void MathCursor::handleAccent(string const & name) -{ - latexkeys const * l = in_word_set(name); - if (l) - handleNest(new MathDecorationInset(l)); -} - - -void MathCursor::handleDelim(latexkeys const * l, latexkeys const * r) +void MathCursor::handleDelim(string const & l, string const & r) { handleNest(new MathDelimInset(l, r)); } @@ -789,8 +812,8 @@ void MathCursor::handleNest(MathInset * p) selCut(); p->cell(0) = theSelection.glue(); } - insert(p); - pushRight(p); + insert(MathAtom(p)); // this invalidates p! + pushRight(prevAtom()); } @@ -804,9 +827,9 @@ void MathCursor::getPos(int & x, int & y) } -MathInset * MathCursor::par() const +MathAtom & MathCursor::par() const { - return cursor().par_; + return *cursor().par_; } @@ -816,25 +839,25 @@ InsetFormulaBase const * MathCursor::formula() } -int MathCursor::idx() const +MathCursor::idx_type MathCursor::idx() const { return cursor().idx_; } -int & MathCursor::idx() +MathCursor::idx_type & MathCursor::idx() { return cursor().idx_; } -int MathCursor::pos() const +MathCursor::pos_type MathCursor::pos() const { return cursor().pos_; } -int & MathCursor::pos() +MathCursor::pos_type & MathCursor::pos() { return cursor().pos_; } @@ -842,7 +865,7 @@ int & MathCursor::pos() bool MathCursor::inMacroMode() const { - return imacro_; + return macroNamePos() != -1; } @@ -852,12 +875,13 @@ bool MathCursor::selection() const } -MathArrayInset * MathCursor::enclosingArray(int & idx) const +MathArrayInset * MathCursor::enclosingArray(MathCursor::idx_type & idx) const { for (int i = Cursor_.size() - 1; i >= 0; --i) { - if (Cursor_[i].par_->isArray()) { + MathArrayInset * p = (*Cursor_[i].par_)->asArrayInset(); + if (p) { idx = Cursor_[i].idx_; - return static_cast(Cursor_[i].par_); + return p; } } return 0; @@ -866,9 +890,22 @@ MathArrayInset * MathCursor::enclosingArray(int & idx) const void MathCursor::pullArg(bool goright) { - // pullArg dump("pullarg"); MathArray a = array(); + + MathScriptInset const * p = par()->asScriptInset(); + if (p) { + // special handling for scripts + const bool up = p->hasUp(); + popLeft(); + MathScriptInset * q = nextAtom()->asScriptInset(); + if (q) + q->removeScript(up); + ++pos(); + array().insert(pos(), a); + return; + } + if (popLeft()) { plainErase(); array().insert(pos(), a); @@ -891,106 +928,85 @@ void MathCursor::normalize() const #endif MathCursor * it = const_cast(this); - if (idx() < 0) - lyxerr << "this should not really happen - 1: " << idx() << "\n"; if (idx() >= par()->nargs()) { - lyxerr << "this should not really happen - 2: " + lyxerr << "this should not really happen - 1: " << idx() << " " << par()->nargs() << "\n"; dump("error 2"); } - it->idx() = max(idx(), 0); it->idx() = min(idx(), par()->nargs() - 1); - if (pos() < 0) - lyxerr << "this should not really happen - 3: " << pos() << "\n"; if (pos() > size()) { - lyxerr << "this should not really happen - 4: " + lyxerr << "this should not really happen - 2: " << pos() << " " << size() << "\n"; dump("error 4"); } - it->pos() = max(pos(), 0); it->pos() = min(pos(), size()); } -int MathCursor::size() const +MathCursor::size_type MathCursor::size() const { return array().size(); } -int MathCursor::col() const +MathCursor::col_type MathCursor::col() const { return par()->col(idx()); } -int MathCursor::row() const +MathCursor::row_type MathCursor::row() const { return par()->row(idx()); } -/* -char MathCursorPos::getChar() const +bool MathCursor::hasPrevAtom() const { - return array().getChar(pos()); + return pos() > 0; } -string MathCursorPos::readString() +bool MathCursor::hasNextAtom() const { - string s; - int code = nextCode(); - for ( ; OK() && nextCode() == code; Next()) - s += getChar(); - - return s; + return pos() < size(); } -*/ -MathInset * MathCursor::prevInset() const +MathAtom const & MathCursor::prevAtom() const { - normalize(); - if (!pos()) - return 0; - return array().nextInset(pos() - 1); + lyx::Assert(pos() > 0); + return array().at(pos() - 1); } -MathInset * MathCursor::nextInset() const +MathAtom & MathCursor::prevAtom() { - normalize(); - return array().nextInset(pos()); + lyx::Assert(pos() > 0); + return array().at(pos() - 1); } -MathScriptInset * MathCursor::prevScriptInset() const +MathAtom const & MathCursor::nextAtom() const { - normalize(); - MathInset * p = prevInset(); - return (p && p->isScriptInset()) ? static_cast(p) : 0; + lyx::Assert(pos() < size()); + return array().at(pos()); } -MathSpaceInset * MathCursor::prevSpaceInset() const +MathAtom & MathCursor::nextAtom() { - normalize(); - MathInset * p = prevInset(); - return (p && p->isSpaceInset()) ? static_cast(p) : 0; + lyx::Assert(pos() < size()); + return array().at(pos()); } MathArray & MathCursor::array() const { static MathArray dummy; - if (!par()) { - lyxerr << "############ par_ not valid\n"; - return dummy; - } - if (idx() < 0 || idx() >= par()->nargs()) { + if (idx() >= par()->nargs()) { lyxerr << "############ idx_ " << idx() << " not valid\n"; return dummy; } @@ -1036,7 +1052,10 @@ void MathCursor::breakLine() while (popRight()) ; - MathMatrixInset * p = outerPar(); + MathMatrixInset * p = formula()->par()->asMatrixInset(); + if (!p) + return; + if (p->getType() == LM_OT_SIMPLE || p->getType() == LM_OT_EQUATION) { p->mutate(LM_OT_EQNARRAY); idx() = 0; @@ -1045,10 +1064,10 @@ void MathCursor::breakLine() p->addRow(row()); // split line - const int r = row(); - for (int c = col() + 1; c < p->ncols(); ++c) { - const int i1 = p->index(r, c); - const int i2 = p->index(r + 1, c); + const row_type r = row(); + for (col_type c = col() + 1; c < p->ncols(); ++c) { + const MathMatrixInset::idx_type i1 = p->index(r, c); + const MathMatrixInset::idx_type i2 = p->index(r + 1, c); lyxerr << "swapping cells " << i1 << " and " << i2 << "\n"; p->cell(i1).swap(p->cell(i2)); } @@ -1062,17 +1081,17 @@ void MathCursor::breakLine() char MathCursor::valign() const { - int idx; + idx_type idx; MathArrayInset * p = enclosingArray(idx); - return p ? p->valign() : 0; + return p ? p->valign() : '\0'; } char MathCursor::halign() const { - int idx; + idx_type idx; MathArrayInset * p = enclosingArray(idx); - return p ? p->halign(idx % p->ncols()) : 0; + return p ? p->halign(idx % p->ncols()) : '\0'; } @@ -1138,13 +1157,24 @@ bool MathCursor::goUp() if (par()->idxUp(idx(), pos())) return true; + // leave subscript to the nearest side + MathScriptInset * p = par()->asScriptInset(); + if (p && p->hasDown()) { + if (pos() <= size() / 2) + popLeft(); + else + popRight(); + return true; + } + // if not, apply brute force. int x0; int y0; getPos(x0, y0); std::vector save = Cursor_; + MathAtom const & out = formula()->par(); y0 -= xarray().ascent(); - for (int y = y0 - 4; y > outerPar()->yo() - outerPar()->ascent(); y -= 4) { + for (int y = y0 - 4; y > out->yo() - out->ascent(); y -= 4) { setPos(x0, y); if (save != Cursor_ && xarray().yo() < y0) return true; @@ -1160,13 +1190,24 @@ bool MathCursor::goDown() if (par()->idxDown(idx(), pos())) return true; + // leave superscript to the nearest side + MathScriptInset * p = par()->asScriptInset(); + if (p && p->hasUp()) { + if (pos() <= size() / 2) + popLeft(); + else + popRight(); + return true; + } + // if not, apply brute force. int x0; int y0; getPos(x0, y0); std::vector save = Cursor_; + MathAtom const & out = formula()->par(); y0 += xarray().descent(); - for (int y = y0 + 4; y < outerPar()->yo() + outerPar()->descent(); y += 4) { + for (int y = y0 + 4; y < out->yo() + out->descent(); y += 4) { setPos(x0, y); if (save != Cursor_ && xarray().yo() > y0) return true; @@ -1188,222 +1229,123 @@ bool MathCursor::idxRight() } -MathMatrixInset * MathCursor::outerPar() const -{ - return - static_cast(const_cast(formula_->par())); -} - -//////////////////////////////////////////////////////////////////////// - - -bool operator==(MathCursorPos const & ti, MathCursorPos const & it) -{ - return ti.par_ == it.par_ && ti.idx_ == it.idx_ && ti.pos_ == it.pos_; -} - - -bool operator<(MathCursorPos const & ti, MathCursorPos const & it) -{ - if (ti.par_ != it.par_) { - lyxerr << "can't compare cursor and anchor in different insets\n"; - return true; - } - if (ti.idx_ != it.idx_) - return ti.idx_ < it.idx_; - return ti.pos_ < it.pos_; -} - - -MathArray & MathCursorPos::cell(int idx) const -{ - return par_->cell(idx); -} - - -MathArray & MathCursorPos::cell() const -{ - return par_->cell(idx_); -} - - -MathXArray & MathCursorPos::xcell(int idx) const -{ - return par_->xcell(idx); -} - - -MathXArray & MathCursorPos::xcell() const -{ - return par_->xcell(idx_); -} - - -MathCursorPos MathCursor::normalAnchor() const -{ - // use Anchor on the same level as Cursor - MathCursorPos normal = Anchor_[Cursor_.size() - 1]; - if (Cursor_.size() < Anchor_.size() && !(normal < cursor())) { - // anchor is behind cursor -> move anchor behind the inset - ++normal.pos_; - } - return normal; -} - - void MathCursor::interpret(string const & s) { - //lyxerr << "interpret: '" << s << "'\n"; + //lyxerr << "interpret 1: '" << s << "'\n"; //lyxerr << "in: " << in_word_set(s) << " \n"; if (s.empty()) return; - char c = s[0]; + if (s.size() == 1) { + interpret(s[0]); + return; + } - //lyxerr << "char: '" << c << "' int: " << int(c) << endl; - //owner_->getIntl()->getTrans().TranslateAndInsert(c, lt); - //lyxerr << "trans: '" << c << "' int: " << int(c) << endl; + //lyxerr << "char: '" << s[0] << "' int: " << int(s[0]) << endl; + //owner_->getIntl()->getTrans().TranslateAndInsert(s[0], lt); + //lyxerr << "trans: '" << s[0] << "' int: " << int(s[0]) << endl; - if (s.size() > 8 && s.substr(0, 8) == "\\matrix ") { - int m = 1; - int n = 1; + if (s.size() > 7 && s.substr(0, 7) == "matrix ") { + unsigned int m = 1; + unsigned int n = 1; string v_align; string h_align; - istringstream is(s.substr(8).c_str()); + istringstream is(s.substr(7).c_str()); is >> m >> n >> v_align >> h_align; - m = std::max(1, m); - n = std::max(1, n); + m = std::max(1u, m); + n = std::max(1u, n); v_align += 'c'; - MathArrayInset * p = new MathArrayInset(m, n); - p->valign(v_align[0]); - p->halign(h_align); - niceInsert(p); + niceInsert(MathAtom(new MathArrayInset(m, n, v_align[0], h_align))); return; } - if (s == "\\over" || s == "\\choose") { + if (s == "\\over" || s == "\\choose" || s == "\\atop") { MathArray ar = array(); - MathInset * p = createMathInset(in_word_set(s.substr(1))); - p->cell(0).swap(array()); + MathAtom t = createMathInset(s.substr(1)); + t->asNestInset()->cell(0).swap(array()); pos() = 0; - niceInsert(p); - down(); + niceInsert(t); + popRight(); + left(); return; } - latexkeys const * l = in_word_set(s.substr(1)); - if (l) { - lastcode_ = LM_TC_VAR; - niceInsert(createMathInset(l)); - return; - } + niceInsert(createMathInset(s.substr(1))); +} - if (MathMacroTable::hasTemplate(s.substr(1))) { - niceInsert(new MathMacro(MathMacroTable::provideTemplate(s.substr(1)))); - return; - } - if (s.size() > 1) { - niceInsert(new MathFuncInset(s.substr(1))); - return; - } +void MathCursor::interpret(char c) +{ + //lyxerr << "interpret 2: '" << c << "'\n"; + if (inMacroMode()) { + string name = macroName(); - // we got just a single char now + if (name == "\\" && c == '#') { + insert(c, LM_TC_TEX); + return; + } - if (c == '^' || c == '_') { - bool const up = (s[0] == '^'); - selCut(); - MathScriptInset * p = prevScriptInset(); - if (!p) { - MathInset * b = prevInset(); - if (b && b->isScriptable()) { - p = new MathScriptInset(up, !up, b->clone()); - posLeft(); - plainErase(); - } else - p = new MathScriptInset(up, !up); - insert(p); + if (name == "\\" && c == '\\') { + backspace(); + interpret("\\backslash"); + return; } - pushRight(p); - if (up) - p->up(true); - else - p->down(true); - idx() = up ? 0 : 1; - pos() = 0; - selPaste(); - return; - } - if (c == '{') { - niceInsert(new MathScopeInset); - return; - } + if (name == "\\#" && '1' <= c && c <= '9') { + insert(c, LM_TC_TEX); + macroModeClose(); + return; + } - if (isalpha(c) && (lastcode_ == LM_TC_GREEK || lastcode_ == LM_TC_GREEK1)) { - static char const greek[26] = - {'A', 'B', 'X', 0 , 'E', 0 , 0 , 'H', 'I', 0 , - 'K', 0 , 'M', 'N', 'O', 0 , 0 , 'P', 0 , 'T', - 0, 0, 0, 0, 0 , 'Z' }; - - MathTextCodes code = LM_TC_SYMB; - if ('A' <= c && c <= 'Z' && greek[c - 'A']) { - code = LM_TC_RM; - c = greek[c - 'A']; + if (isalpha(c)) { + insert(c, LM_TC_TEX); + return; } - insert(c, code); - -#warning greek insert problem? look here! - //if (lastcode_ == LM_TC_GREEK1) - lastcode_ = LM_TC_VAR; - return; - } - if (c == '_' && lastcode_ == LM_TC_TEX) { - lastcode_ = LM_TC_VAR; - insert(c, LM_TC_SPECIAL); - return; - } + if (name == "\\") { + insert(c, LM_TC_TEX); + macroModeClose(); + return; + } - if ('0' <= c && c <= '9' && (lastcode_ == LM_TC_TEX || imacro_)) { - macroModeOpen(); - lastcode_ = LM_TC_VAR; - insert(c, lastcode_); + macroModeClose(); return; } - if (('0' <= c && c <= '9') || strchr(";:!|[]().,?", c)) { - if (lastcode_ != LM_TC_TEXTRM) - lastcode_ = LM_TC_CONST; - insert(c, lastcode_); + // no macro mode + if (c == '^' || c == '_') { + const bool up = (c == '^'); + selCut(); + if (hasPrevAtom() && prevAtom()->asScriptInset()) { + prevAtom()->asScriptInset()->ensure(up); + pushRight(prevAtom()); + pos() = size(); + } else if (hasNextAtom() && nextAtom()->asScriptInset()) { + nextAtom()->asScriptInset()->ensure(up); + pushLeft(nextAtom()); + pos() = 0; + } else { + plainInsert(MathAtom(new MathScriptInset(up))); + pushRight(prevAtom()); + } + idx() = up; + selPaste(); return; } - if (strchr("+/-*<>=", c)) { - if (lastcode_ != LM_TC_TEXTRM) - lastcode_ = LM_TC_BOP; - insert(c, lastcode_); - return; - } + if (selection_) + selDel(); - if (strchr("#$%{|}", c)) { - if (lastcode_ != LM_TC_TEXTRM) - lastcode_ = LM_TC_SPECIAL; - insert(c, lastcode_); + if (lastcode_ == LM_TC_TEXTRM) { + insert(c, LM_TC_TEXTRM); return; } if (c == ' ') { - if (imacro_) { - lastcode_ = LM_TC_VAR; - macroModeClose(); - return; - } - - if (lastcode_ == LM_TC_TEXTRM) { - insert(c, LM_TC_TEXTRM); + if (hasPrevAtom() && prevAtom()->asSpaceInset()) { + prevAtom()->asSpaceInset()->incSpace(); return; } @@ -1417,27 +1359,112 @@ void MathCursor::interpret(string const & s) return; } - if (c == '\'' || c == '@') { - insert(c, LM_TC_VAR); + if (strchr("{}", c)) { + insert(c, LM_TC_TEX); + return; + } + + if (strchr("#$%", c)) { + insert(MathAtom(new MathSpecialCharInset(c))); + lastcode_ = LM_TC_VAR; return; } + if (isalpha(c) && (lastcode_ == LM_TC_GREEK || lastcode_ == LM_TC_GREEK1)) { + static char const greekl[][26] = + {"alpha", "beta", "chi", "delta", "epsilon", "phi", + "gamma", "eta", "iota", "epsilon", "kappa", "lambda", "mu", + "nu", "omikron", "pi", "vartheta", "rho", "sigma", + "tau", "upsilon", "theta", "omega", "xi", "varphi", "zeta"}; + static char const greeku[][26] = + {"Alpha", "Beta", "chi", "Delta", "varepsilon", "Phi", + "Gamma", "Eta", "Iota", "Epsilon", "Kappa", "Lambda", "Mu", + "Nu", "Omikron", "Pi", "vartheta", "varrho", "Sigma", "varsigma", + "Upsilon", "Theta", "Omega", "Xi", "Varphi", "Zeta"}; + + latexkeys const * l = 0; + if ('a' <= c && c <= 'z') + l = in_word_set(greekl[c - 'a']); + if ('A' <= c && c <= 'Z') + l = in_word_set(greeku[c - 'A']); + + if (l) + insert(createMathInset(l)); + else + insert(c, LM_TC_VAR); + +#warning greek insert problem? look here! + if (lastcode_ == LM_TC_GREEK1) + lastcode_ = LM_TC_VAR; + return; + } + if (c == '\\') { - if (imacro_) - macroModeClose(); + insert(c, LM_TC_TEX); //bv->owner()->message(_("TeX mode")); - lastcode_ = LM_TC_TEX; return; } - if (isalpha(c)) { - if (lastcode_ == LM_TC_TEX) { - macroModeOpen(); - lastcode_ = LM_TC_VAR; - } - insert(c, lastcode_); - return; + // no special circumstances, so insert the character without any fuss + insert(c, LM_TC_MIN); +} + + + +//////////////////////////////////////////////////////////////////////// + + +bool operator==(MathCursorPos const & ti, MathCursorPos const & it) +{ + return ti.par_ == it.par_ && ti.idx_ == it.idx_ && ti.pos_ == it.pos_; +} + + +bool operator<(MathCursorPos const & ti, MathCursorPos const & it) +{ + if (ti.par_ != it.par_) { + lyxerr << "can't compare cursor and anchor in different insets\n"; + return true; } + if (ti.idx_ != it.idx_) + return ti.idx_ < it.idx_; + return ti.pos_ < it.pos_; +} + + +MathArray & MathCursorPos::cell(MathCursor::idx_type idx) const +{ + return (*par_)->cell(idx); +} + + +MathArray & MathCursorPos::cell() const +{ + return (*par_)->cell(idx_); +} + +MathXArray & MathCursorPos::xcell(MathCursor::idx_type idx) const +{ + return (*par_)->xcell(idx); } + +MathXArray & MathCursorPos::xcell() const +{ + return (*par_)->xcell(idx_); +} + + +MathCursorPos MathCursor::normalAnchor() const +{ + // use Anchor on the same level as Cursor + MathCursorPos normal = Anchor_[Cursor_.size() - 1]; + if (Cursor_.size() < Anchor_.size() && !(normal < cursor())) { + // anchor is behind cursor -> move anchor behind the inset + ++normal.pos_; + } + return normal; +} + +