#endif
#include <config.h>
+#include <algorithm>
#include <cctype>
-#include "math_inset.h"
-#include "math_arrayinset.h"
-#include "math_parser.h"
-#include "math_cursor.h"
-#include "math_macro.h"
-#include "math_macroarg.h"
-#include "math_macrotable.h"
-#include "math_root.h"
#include "support/lstrings.h"
+#include "support/LAssert.h"
#include "debug.h"
#include "LColor.h"
#include "Painter.h"
+#include "support.h"
+#include "formulabase.h"
+#include "math_cursor.h"
+#include "math_factory.h"
+#include "math_arrayinset.h"
+#include "math_charinset.h"
+#include "math_deliminset.h"
#include "math_matrixinset.h"
-#include "math_grid.h"
-#include "math_spaceinset.h"
-#include "math_funcinset.h"
-#include "math_bigopinset.h"
-#include "math_fracinset.h"
-#include "math_decorationinset.h"
-#include "math_dotsinset.h"
-#include "math_accentinset.h"
-#include "math_macrotemplate.h"
-#include "math_sqrtinset.h"
#include "math_scriptinset.h"
-#include "mathed/support.h"
-#include "formulabase.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 {
-MathArray selarray;
+struct Selection
+{
+ void grab(MathCursor const & cursor)
+ {
+ data_.clear();
+ MathCursorPos i1;
+ MathCursorPos i2;
+ cursor.getSelection(i1, i2);
+ if (i1.idx_ == i2.idx_)
+ data_.push_back(MathArray(i1.cell(), i1.pos_, i2.pos_));
+ else {
+ std::vector<MathInset::idx_type> 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]));
+ }
+ }
+
+ void erase(MathCursor & cursor)
+ {
+ MathCursorPos i1;
+ MathCursorPos i2;
+ cursor.getSelection(i1, i2);
+ if (i1.idx_ == i2.idx_) {
+ i1.cell().erase(i1.pos_, i2.pos_);
+ } else {
+ std::vector<MathInset::idx_type> indices =
+ (*i1.par_)->idxBetween(i1.idx_, i2.idx_);
+ for (unsigned i = 0; i < indices.size(); ++i)
+ i1.cell(indices[i]).erase();
+ }
+ cursor.cursor() = i1;
+ }
+
+ void paste(MathCursor & cursor) const
+ {
+ MathArray ar = glue();
+ cursor.paste(ar);
+ }
+
+ // glues selection to one cell
+ MathArray glue() const
+ {
+ MathArray ar;
+ for (unsigned i = 0; i < data_.size(); ++i)
+ ar.push_back(data_[i]);
+ return ar;
+ }
-bool IsMacro(short tok, int id)
+ void clear()
+ {
+ data_.clear();
+ }
+
+ std::vector<MathArray> data_;
+};
+
+
+Selection theSelection;
+
+
+#if FILEDEBUG
+std::ostream & operator<<(std::ostream & os, MathCursorPos const & p)
{
- return tok != LM_TK_STACK &&
- tok != LM_TK_FRAC &&
- tok != LM_TK_SQRT &&
- tok != LM_TK_WIDE &&
- tok != LM_TK_SPACE &&
- tok != LM_TK_DOTS &&
- tok != LM_TK_FUNCLIM &&
- tok != LM_TK_BIGSYM &&
- tok != LM_TK_ACCENT &&
- !(tok == LM_TK_SYM && id < 255);
+ os << "(par: " << p.par_ << " idx: " << p.idx_ << " pos: " << p.pos_ << ")";
+ return os;
}
+#endif
}
-MathCursor::MathCursor(InsetFormulaBase * formula)
- : formula_(formula)
+
+MathCursor::MathCursor(InsetFormulaBase * formula, bool left)
+ : formula_(formula), lastcode_(LM_TC_VAR), selection_(false)
{
- accent = 0;
- lastcode = LM_TC_MIN;
- macro_mode = false;
- first();
+ left ? first() : last();
+}
+
+
+void MathCursor::push(MathAtom & t)
+{
+ //cerr << "Entering atom "; t->write(cerr, false); cerr << " left\n";
+ MathCursorPos p;
+ p.par_ = &t;
+ Cursor_.push_back(p);
+}
+
+
+void MathCursor::pushLeft(MathAtom & t)
+{
+ //cerr << "Entering atom "; t->write(cerr, false); cerr << " left\n";
+ push(t);
+ t->idxFirst(idx(), pos());
}
-void MathCursor::push(MathInset * par, bool first)
+void MathCursor::pushRight(MathAtom & t)
{
- path_.push_back(MathIter());
- path_.back().par_ = par_;
- path_.back().idx_ = idx_;
- path_.back().cursor_ = cursor_;
- dump("Pushed:");
- par_ = par;
- first ? par_->idxFirst(idx_, cursor_) : par_->idxLast(idx_, cursor_);
+ //cerr << "Entering atom "; t->write(cerr, false); cerr << " right\n";
+ posLeft();
+ push(t);
+ t->idxLast(idx(), pos());
}
-bool MathCursor::pop()
+bool MathCursor::popLeft()
{
- if (path_.empty())
+ //cerr << "Leaving atom "; par()->write(cerr, false); cerr << " left\n";
+ if (Cursor_.size() <= 1)
return false;
- par_ = path_.back().par_;
- idx_ = path_.back().idx_;
- cursor_ = path_.back().cursor_;
- dump("Popped:");
- path_.pop_back();
+ //if (nextInset())
+ // nextInset()->removeEmptyScripts();
+ Cursor_.pop_back();
+ //if (nextAtom())
+ // nextAtom()->removeEmptyScripts();
return true;
}
-MathInset * MathCursor::parInset(int i) const
+bool MathCursor::popRight()
{
- return path_[i].par_;
+ //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;
}
+
+
+#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
+ << " Cursor: pos: " << Cursor_[i].pos_
+ << " idx: " << Cursor_[i].idx_
+ << " par: " << Cursor_[i].par_ << "\n";
- lyxerr << "MC: " << what
- << " cursor: " << cursor_
- << " anchor: " << anchor_
- << " idx: " << idx_
- << " par: " << par_
- << " 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";
}
+
void MathCursor::seldump(char const * str) const
{
- lyxerr << "SEL: " << str << ": '" << selarray << "'\n";
- dump(" Pos");
- return;
-
- lyxerr << "\n\n\\n=================vvvvvvvvvvvvv======================= "
- << str << "\nselarray: " << selarray;
- for (unsigned int i = 0; i < path_.size(); ++i)
- lyxerr << path_[i].par_ << "\n'" << path_[i].par_->cell(0) << "'\n";
- lyxerr << "\ncursor: " << cursor_;
- lyxerr << "\nanchor: " << anchor_;
+ //lyxerr << "SEL: " << str << ": '" << theSelection << "'\n";
+ //dump(" Pos");
+
+ lyxerr << "\n\n\n=================vvvvvvvvvvvvv======================= "
+ << str << "\ntheSelection: " << selection_
+ << " '" << theSelection.glue() << "'\n";
+ for (unsigned int i = 0; i < Cursor_.size(); ++i)
+ lyxerr << Cursor_[i].par_ << "\n'" << Cursor_[i].cell() << "'\n";
+ lyxerr << "\n";
+ for (unsigned int i = 0; i < Anchor_.size(); ++i)
+ lyxerr << Anchor_[i].par_ << "\n'" << Anchor_[i].cell() << "'\n";
+ //lyxerr << "\ncursor.pos_: " << pos();
+ //lyxerr << "\nanchor.pos_: " << anchor().pos_;
lyxerr << "\n===================^^^^^^^^^^^^=====================\n\n\n";
}
+#else
+
+void MathCursor::seldump(char const *) const {}
+void MathCursor::dump(char const *) const {}
+
+#endif
+
-bool MathCursor::isInside(MathInset * p) const
+bool MathCursor::isInside(MathInset const * p) const
{
- for (unsigned i = 0; i < path_.size(); ++i)
- if (parInset(i) == p)
+ for (unsigned i = 0; i < Cursor_.size(); ++i)
+ if (Cursor_[i].par_->nucleus() == p)
return true;
- return par_ == p;
+ return false;
}
-bool MathCursor::Left(bool sel)
+bool MathCursor::openable(MathAtom const & t, bool sel) const
{
- dump("Left 1");
- if (macro_mode) {
- // was MacroModeBack()
- if (!imacro->name().empty()) {
- imacro->SetName(imacro->name().substr(0, imacro->name().length()-1));
- imacro->Metrics(imacro->size());
- } else
- MacroModeClose();
- return true;
+ if (!t->isActive())
+ return false;
+
+ if (t->asScriptInset())
+ return false;
+
+ if (sel) {
+ // we can't move into anything new during selection
+ if (Cursor_.size() == Anchor_.size())
+ return false;
+ if (&t != Anchor_[Cursor_.size()].par_)
+ return false;
}
- clearLastCode();
- SelHandle(sel);
+ return true;
+}
- bool result = false;
- if (selection) {
- result = array().prev(cursor_);
- if (!result && pop()) {
- anchor_ = cursor_;
- result = array().next(anchor_);
- }
- } else {
- MathInset * p = prevInset();
- if (p && p->isActive()) {
- // We have to move deeper into the previous inset
- array().prev(cursor_);
- push(p, false);
- result = true;
- } else {
- // The common case, where we are not
- // entering a deeper inset
- result = array().prev(cursor_);
- if (!result) {
- if (par_->idxLeft(idx_, cursor_)) {
- result = true;
- } else if (pop()) {
- result = 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;
}
- dump("Left 2");
- return result;
+
+ return t->nargs() && t->covers(x, y);
}
-bool MathCursor::plainRight()
+bool MathCursor::posLeft()
{
- return array().next(cursor_);
+ if (pos() == 0)
+ return false;
+
+ --pos();
+
+ return true;
}
-bool MathCursor::Right(bool sel)
+bool MathCursor::posRight()
{
- dump("Right 1");
- if (macro_mode) {
- MacroModeClose();
+ if (pos() == size())
+ return false;
+
+ ++pos();
+
+ return true;
+}
+
+
+bool MathCursor::left(bool sel)
+{
+ dump("Left 1");
+ if (inMacroMode()) {
+ macroModeClose();
+ lastcode_ = LM_TC_VAR;
return true;
}
+ selHandle(sel);
+ lastcode_ = LM_TC_VAR;
- clearLastCode();
- SelHandle(sel);
+ if (hasPrevAtom() && openable(prevAtom(), sel)) {
+ pushRight(prevAtom());
+ return true;
+ }
+
+ return posLeft() || idxLeft() || popLeft();
+}
- bool result = false;
- if (selection) {
- result = array().next(cursor_);
- if (!result && pop()) {
- anchor_ = cursor_;
- result = array().next(cursor_);
- }
- } else {
- MathInset * p = nextInset();
- if (p && p->isActive()) {
- push(p, true);
- result = true;
- } else {
- result = array().next(cursor_);
- if (!result) {
- if (par_->idxRight(idx_, cursor_)) {
- result = true;
- } else if (pop()) {
- result = true;
- array().next(cursor_);
- }
- }
- }
+bool MathCursor::right(bool sel)
+{
+ dump("Right 1");
+ if (inMacroMode()) {
+ macroModeClose();
+ lastcode_ = LM_TC_VAR;
+ return true;
+ }
+ selHandle(sel);
+ lastcode_ = LM_TC_VAR;
+
+ if (hasNextAtom() && openable(nextAtom(), sel)) {
+ pushLeft(nextAtom());
+ return true;
}
- dump("Right 2");
- return result;
+
+ return posRight() || idxRight() || popRight();
}
void MathCursor::first()
{
- selection = false;
- par_ = formula_->par();
- idx_ = 0;
- cursor_ = 0;
- anchor_ = 0;
- par_->idxFirst(idx_, cursor_);
+ Cursor_.clear();
+ pushLeft(formula_->par());
}
void MathCursor::last()
{
- selection = false;
- par_ = formula_->par();
- idx_ = 0;
- cursor_ = 0;
- anchor_ = 0;
- par_->idxLast(idx_, cursor_);
+ first();
+ end();
}
-void MathCursor::SetPos(int x, int y)
+void MathCursor::setPos(int x, int y)
{
- dump("SetPos 1");
- //lyxerr << "MathCursor::SetPos x: " << x << " y: " << y << "\n";
+ //dump("setPos 1");
+ //lyxerr << "MathCursor::setPos x: " << x << " y: " << y << "\n";
- MacroModeClose();
- lastcode = LM_TC_MIN;
- path_.clear();
+ macroModeClose();
+ lastcode_ = LM_TC_VAR;
+ first();
- par_ = formula()->par();
+ cursor().par_ = &formula_->par();
while (1) {
- idx_ = -1;
- cursor_ = -1;
- //lyxerr << "found idx: " << idx_ << " cursor: " << cursor_ << "\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) {
- MathXArray const & ar = par_->xcell(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;
- cursor_ = c;
+ idx() = i;
+ pos() = c;
}
}
- lyxerr << "found idx: " << idx_ << " cursor: " << cursor_ << "\n";
- MathInset * n = nextInset();
- MathInset * p = prevInset();
- if (n && (n->isActive() || n->isScriptInset()) && n->covers(x, y))
- push(n, true);
- else if (p && (p->isActive() || p->isScriptInset()) && p->covers(x, y)) {
- array().prev(cursor_);
- push(p, false);
- } else
+ //lyxerr << "found idx: " << idx() << " cursor: "
+ // << pos() << "\n";
+ 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");
- if (macro_mode)
- MacroModeClose();
- clearLastCode();
- if (!par_->idxHome(idx_, cursor_)) {
- pop();
- }
- dump("Home 2");
+ dump("home 1");
+ selHandle(sel);
+ macroModeClose();
+ lastcode_ = LM_TC_VAR;
+ if (!par()->idxHome(idx(), pos()))
+ popLeft();
+ dump("home 2");
}
-void MathCursor::End()
+void MathCursor::end(bool sel)
{
- dump("End 1");
- if (macro_mode)
- MacroModeClose();
- clearLastCode();
- if (!par_->idxEnd(idx_, cursor_)) {
- pop();
- array().next(cursor_);
- }
- dump("End 2");
+ dump("end 1");
+ selHandle(sel);
+ macroModeClose();
+ lastcode_ = LM_TC_VAR;
+ if (!par()->idxEnd(idx(), pos()))
+ popRight();
+ dump("end 2");
}
+void MathCursor::plainErase()
+{
+ array().erase(pos());
+}
+
+
+void MathCursor::plainInsert(MathAtom const & t)
+{
+ array().insert(pos(), t);
+ ++pos();
+}
+
void MathCursor::insert(char c, MathTextCodes t)
{
- lyxerr << "inserting '" << c << "'\n";
- if (selection)
- SelDel();
+ //lyxerr << "inserting '" << c << "'\n";
+ plainInsert(MathAtom(new MathCharInset(c, t)));
+}
- if (t == LM_TC_MIN)
- t = lastcode;
- if (macro_mode && !(MathIsAlphaFont(t) || t == LM_TC_MIN))
- MacroModeClose();
+void MathCursor::insert(MathAtom const & t)
+{
+ macroModeClose();
- if (macro_mode) {
- if (MathIsAlphaFont(t) || t == LM_TC_MIN) {
- // was MacroModeinsert(c);
- imacro->SetName(imacro->name() + static_cast<char>(c));
- return;
- }
+ if (selection_) {
+ if (t->nargs())
+ selCut();
+ else
+ selDel();
}
- if (accent)
- doAccent(c, t);
- else {
- array().insert(cursor_, c, t);
- array().next(cursor_);
+ plainInsert(t);
+}
+
+
+void MathCursor::niceInsert(MathAtom const & t)
+{
+ selCut();
+ insert(t); // inserting invalidates the pointer!
+ MathAtom const & p = prevAtom();
+ if (p->nargs()) {
+ posLeft();
+ right(); // do not push for e.g. MathSymbolInset
+ selPaste();
}
+ p->metrics(p->size());
+}
+
+
+void MathCursor::insert(MathArray const & ar)
+{
+ macroModeClose();
+ if (selection_)
+ selCut();
- lastcode = t;
- return;
+ array().insert(pos(), ar);
+ pos() += ar.size();
}
-void MathCursor::insert(MathInset * p)
+void MathCursor::paste(MathArray const & ar)
{
- MacroModeClose();
+ Anchor_ = Cursor_;
+ selection_ = true;
+ array().insert(pos(), ar);
+ pos() += ar.size();
+}
- if (selection) {
- if (p->nargs())
- SelCut();
- else
- SelDel();
+
+void MathCursor::backspace()
+{
+ if (pos() == 0) {
+ pullArg(false);
+ return;
+ }
+
+ if (selection_) {
+ selDel();
+ return;
}
- if (accent && !p->nargs())
- doAccent(p);
- else {
- array().insert(cursor_, p);
- array().next(cursor_);
+ MathScriptInset * p = prevAtom()->asScriptInset();
+ if (p) {
+ p->removeScript(p->hasUp());
+ // Don't delete if there is anything left
+ if (p->hasUp() || p->hasDown())
+ return;
}
- //if (p->nargs())
- // push(p, true);
+ --pos();
+ plainErase();
}
-void MathCursor::Delete()
+void MathCursor::erase()
{
- dump("Delete 1");
- if (macro_mode)
+ if (inMacroMode())
return;
- if (selection) {
- SelDel();
+ if (selection_) {
+ selDel();
return;
}
- if (cursor_ < array().size())
- array().erase(cursor_);
-
// delete empty cells if necessary
- if (cursor_ == 0 && array().size() == 0) {
+ if (array().empty()) {
bool popit;
bool removeit;
- par_->idxDelete(idx_, popit, removeit);
- if (popit && pop() && removeit)
- Delete();
+ par()->idxDelete(idx(), popit, removeit);
+ if (popit && popLeft() && removeit)
+ plainErase();
+ return;
}
-#ifdef WITH_WARNINGS
-#warning pullArg disabled
-#endif
- //if (cursor_ == 0 && !path_.empty()) {
- // lyxerr << "Delete: popping...\n";
- // pop();
- //}
+ if (pos() == size())
+ return;
- dump("Delete 2");
+ MathScriptInset * p = nextAtom()->asScriptInset();
+ if (p) {
+ p->removeScript(p->hasUp());
+ // Don't delete if there is anything left
+ if (p->hasUp() || p->hasDown())
+ return;
+ }
+
+ plainErase();
}
-void MathCursor::DelLine()
+void MathCursor::delLine()
{
- MacroModeClose();
+ macroModeClose();
- if (selection) {
- SelDel();
+ if (selection_) {
+ selDel();
return;
}
- if (par_->nrows() > 1)
- par_->delRow(row());
+ if (par()->nrows() > 1)
+ par()->delRow(row());
}
-bool MathCursor::Up(bool sel)
+bool MathCursor::up(bool sel)
{
- dump("Up 1");
- MacroModeClose();
- SelHandle(sel);
- SelClear();
+ dump("up 1");
+ macroModeClose();
+ selHandle(sel);
- // check whether we could move into an inset on the right or on the left
- MathInset * p = nextInset();
- if (p) {
- int idx, cursor;
- if (p->idxFirstUp(idx, cursor)) {
- push(p, true);
- par_ = p;
- idx_ = idx;
- cursor_ = cursor;
- 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 idx, cursor;
- if (p->idxLastUp(idx, cursor)) {
- array().prev(cursor_);
- push(p, false);
- par_ = p;
- idx_ = idx;
- cursor_ = cursor;
- dump("Up 4");
- return true;
+ if (hasNextAtom()) {
+ MathAtom & n = nextAtom();
+ if (n->asScriptInset() && n->asScriptInset()->hasUp()) {
+ pushLeft(n);
+ idx() = 1;
+ pos() = 0;
+ return true;
+ }
}
}
-
- int x = xarray().pos2x(cursor_);
- bool result = par_->idxUp(idx_, cursor_);
- if (!result && pop()) {
- result = par_->idxUp(idx_, cursor_);
- }
- cursor_ = xarray().x2pos(x);
-
- dump("Up 2");
- return result;
+ return goUp();
}
-bool MathCursor::Down(bool sel)
+bool MathCursor::down(bool sel)
{
- dump("Down 1");
- MacroModeClose();
- SelHandle(sel);
- SelClear();
+ dump("down 1");
+ macroModeClose();
+ selHandle(sel);
- // check whether we could move into an inset on the right or on the left
- MathInset * p = nextInset();
- if (p) {
- int idx, cursor;
- if (p->idxFirstDown(idx, cursor)) {
- push(p, true);
- idx_ = idx;
- cursor_ = cursor;
- 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 idx, cursor;
- if (p->idxLastDown(idx, cursor)) {
- array().prev(cursor_);
- push(p, false);
- idx_ = idx;
- cursor_ = cursor;
- dump("Down 4");
- return true;
+ if (hasNextAtom()) {
+ MathAtom & n = nextAtom();
+ if (n->asScriptInset() && n->asScriptInset()->hasDown()) {
+ pushLeft(n);
+ idx() = 0;
+ pos() = 0;
+ return true;
+ }
}
}
- int x = xarray().pos2x(cursor_);
- bool result = par_->idxDown(idx_, cursor_);
- if (!result && pop()) {
- result = par_->idxDown(idx_, cursor_);
- }
- cursor_ = xarray().x2pos(x);
-
- dump("Down 2");
- return result;
+ return goDown();
}
bool MathCursor::toggleLimits()
{
- if (!prevIsInset())
+ if (!hasPrevAtom())
return false;
- MathInset * p = prevInset();
- int old = p->limits();
- p->limits(old == -1 ? 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();
}
-void MathCursor::SetSize(MathStyles size)
+void MathCursor::setSize(MathStyles size)
{
- par_->UserSetSize(size);
+ par()->userSetSize(size);
}
-
-void MathCursor::Interpret(string const & s)
+void MathCursor::macroModeClose()
{
- lyxerr << "Interpret: '" << s << "' ('" << s.substr(0, 7) << "' " <<
-in_word_set(s) << " \n";
-
- if (s[0] == '^') {
- MathScriptInset * p = nearbyScriptInset();
- if (!p) {
- p = new MathScriptInset;
- insert(p);
- array().prev(cursor_);
- }
- push(p, true);
- if (!p->up())
- p->up(true);
- idx_ = 0;
- return;
+ string s = macroName();
+ if (s.size()) {
+ size_type old = pos();
+ pos() -= s.size();
+ array().erase(pos(), old);
+ interpret(s);
}
+}
- if (s[0] == '_') {
- MathScriptInset * p = nearbyScriptInset();
- if (!p) {
- p = new MathScriptInset;
- insert(p);
- array().prev(cursor_);
- }
- push(p, true);
- if (!p->down())
- p->down(true);
- idx_ = 1;
- return;
+
+int MathCursor::macroNamePos() const
+{
+ 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;
+}
- if (s[0] == '!' || s[0] == ',' || s[0] == ':' || s[0] == ';') {
- int sp = (s[0] == ',') ? 1:((s[0] == ':') ? 2:((s[0] == ';') ? 3: 0));
- insert(new MathSpaceInset(sp));
- return;
+
+string MathCursor::macroName() const
+{
+ string s;
+ for (int i = macroNamePos(); i >= 0 && i < int(pos()); ++i)
+ s += array().at(i)->getChar();
+ return s;
+}
+
+
+void MathCursor::selCopy()
+{
+ seldump("selCopy");
+ if (selection_) {
+ theSelection.grab(*this);
+ selClear();
}
+}
- MathInset * p = 0;
- latexkeys const * l = in_word_set(s);
-
- if (l == 0) {
- if (s == "root")
- p = new MathRootInset;
- else if (MathMacroTable::hasTemplate(s))
- p = new MathMacro(MathMacroTable::provideTemplate(s));
- else if (s.size() > 7 && s.substr(0, 7) == "matrix ") {
- int m = 1;
- int n = 1;
- string v_align;
- string h_align;
- std::istringstream is(s.substr(7).c_str());
- is >> m >> n >> v_align >> h_align;
- m = std::max(1, m);
- n = std::max(1, n);
- MathArrayInset * pp = new MathArrayInset(m, n);
- pp->valign(v_align[0]);
- pp->halign(h_align);
- p = pp;
- }
- else
- p = new MathFuncInset(s, LM_OT_UNDEF);
+
+void MathCursor::selCut()
+{
+ seldump("selCut");
+ if (selection_) {
+ theSelection.grab(*this);
+ theSelection.erase(*this);
+ selClear();
} else {
- switch (l->token) {
- case LM_TK_BIGSYM:
- p = new MathBigopInset(l->name, l->id);
- break;
-
- case LM_TK_SYM:
- if (l->id < 255) {
- insert(static_cast<byte>(l->id),
- MathIsBOPS(l->id) ?
- LM_TC_BOPS : LM_TC_SYMB);
-
- } else {
- p = new MathFuncInset(l->name);
- }
- break;
-
- case LM_TK_STACK:
- p = new MathFracInset("stackrel");
- break;
-
- case LM_TK_FRAC:
- p = new MathFracInset("frac");
- break;
-
- case LM_TK_SQRT:
- p = new MathSqrtInset;
- break;
-
- case LM_TK_WIDE:
- p = new MathDecorationInset(l->id);
- break;
-
- case LM_TK_FUNCLIM:
- p = new MathFuncInset(l->name, LM_OT_FUNCLIM);
- break;
-
- case LM_TK_SPACE:
- p = new MathSpaceInset(l->id);
- break;
-
- case LM_TK_DOTS:
- p = new MathDotsInset(l->name, l->id);
- break;
-
- case LM_TK_ACCENT:
- setAccent(l->id);
- break;
-
- case LM_TK_MACRO:
- p = new MathMacro(MathMacroTable::provideTemplate(s));
- break;
-
- default:
- p = new MathFuncInset(l->name);
- break;
- }
+ theSelection.clear();
}
+}
- if (p) {
- bool oldsel = selection;
- if (oldsel)
- SelCut();
- insert(p);
- if (p->nargs()) {
- array().prev(cursor_);
- push(p, true);
- if (oldsel)
- SelPaste();
- }
- p->Metrics(p->size());
+
+void MathCursor::selDel()
+{
+ seldump("selDel");
+ if (selection_) {
+ theSelection.erase(*this);
+ selClear();
}
}
-void MathCursor::MacroModeOpen()
+void MathCursor::selPaste()
{
- if (!macro_mode) {
- imacro = new MathFuncInset("");
- insert(imacro);
- macro_mode = true;
- } else
- lyxerr << "Math Warning: Already in macro mode" << endl;
+ seldump("selPaste");
+ theSelection.paste(*this);
+ theSelection.grab(*this);
+ //selClear();
}
-void MathCursor::MacroModeClose()
+void MathCursor::selHandle(bool sel)
{
- if (macro_mode) {
- macro_mode = false;
- latexkeys const * l = in_word_set(imacro->name());
- if (!imacro->name().empty()
- && (!l || (l && IsMacro(l->token, l->id)))
- && !MathMacroTable::hasTemplate(imacro->name()))
- {
- if (!l) {
- //imacro->SetName(macrobf);
- // This guarantees that the string will be removed by destructor
- imacro->SetType(LM_OT_UNDEF);
- } else
- imacro->SetName(l->name);
- } else {
- Left();
- if (nextInset()->isAccentInset())
- setAccent(
- static_cast<MathAccentInset*>(nextInset())->getAccentCode());
- array().erase(cursor_);
- if (l || MathMacroTable::hasTemplate(imacro->name()))
- Interpret(imacro->name());
- imacro->SetName(string());
- }
- imacro = 0;
- }
+ if (sel == selection_)
+ return;
+
+ theSelection.clear();
+ Anchor_ = Cursor_;
+ selection_ = sel;
}
-void MathCursor::SelCopy()
+void MathCursor::selStart()
{
- seldump("SelCopy");
- if (selection) {
- int const p1 = min(cursor_, anchor_);
- int const p2 = max(cursor_, anchor_);
- selarray = array();
- selarray.erase(p2, selarray.size());
- selarray.erase(0, p1);
- SelClear();
- }
+ seldump("selStart");
+ if (selection_)
+ return;
+
+ theSelection.clear();
+ Anchor_ = Cursor_;
+ selection_ = true;
}
-void MathCursor::selArray(MathArray & ar) const
+
+void MathCursor::selClear()
{
- int const p1 = min(cursor_, anchor_);
- int const p2 = max(cursor_, anchor_);
- ar = array();
- ar.erase(p2, ar.size());
- ar.erase(0, p1);
+ seldump("selClear");
+ selection_ = false;
}
-void MathCursor::SelCut()
+void MathCursor::drawSelection(Painter & pain) const
{
- seldump("SelCut");
- if (selection) {
- int const p1 = min(cursor_, anchor_);
- int const p2 = max(cursor_, anchor_);
- cursor_ = p1; // move cursor to a same position
- selarray = array();
- selarray.erase(p2, selarray.size());
- selarray.erase(0, p1);
- array().erase(p1, p2);
- SelClear();
+ if (!selection_)
+ return;
+
+ MathCursorPos i1;
+ MathCursorPos i2;
+ getSelection(i1, i2);
+
+ //lyxerr << "selection from: " << i1 << " to " << i2 << "\n";
+
+ if (i1.idx_ == i2.idx_) {
+ MathXArray & c = i1.xcell();
+ int x1 = c.xo() + c.pos2x(i1.pos_);
+ int y1 = c.yo() - c.ascent();
+ int x2 = c.xo() + c.pos2x(i2.pos_);
+ int y2 = c.yo() + c.descent();
+ pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
+ } else {
+ std::vector<MathInset::idx_type> 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();
+ int y1 = c.yo() - c.ascent();
+ int x2 = c.xo() + c.width();
+ int y2 = c.yo() + c.descent();
+ pain.fillRectangle(x1, y1, x2 - x1, y2 - y1, LColor::selection);
+ }
}
}
-void MathCursor::SelDel()
+void MathCursor::handleFont(MathTextCodes t)
{
- seldump("SelDel");
- if (selection) {
- int const p1 = min(cursor_, anchor_);
- int const p2 = max(cursor_, anchor_);
- array().erase(p1, p2);
- SelClear();
- }
+ macroModeClose();
+ if (selection_) {
+ MathCursorPos i1;
+ MathCursorPos i2;
+ getSelection(i1, i2);
+ if (i1.idx_ == i2.idx_) {
+ MathArray & ar = i1.cell();
+ 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::SelPaste()
+void MathCursor::handleDelim(string const & l, string const & r)
{
- seldump("SelPaste");
- array().insert(cursor_, selarray);
- cursor_ += selarray.size();
- SelClear();
+ handleNest(new MathDelimInset(l, r));
}
-void MathCursor::SelHandle(bool sel)
+
+void MathCursor::handleNest(MathInset * p)
{
- if (sel && !selection)
- SelStart();
- if (!sel && selection)
- SelClear();
+ if (selection_) {
+ selCut();
+ p->cell(0) = theSelection.glue();
+ }
+ insert(MathAtom(p)); // this invalidates p!
+ pushRight(prevAtom());
}
-void MathCursor::SelStart()
+void MathCursor::getPos(int & x, int & y)
{
- seldump("SelStart");
- if (selection)
- return;
-
- anchor_ = cursor_;
- selection = true;
+#ifdef WITH_WARNINGS
+#warning This should probably take cellXOffset and cellYOffset into account
+#endif
+ x = xarray().xo() + xarray().pos2x(pos());
+ y = xarray().yo();
}
-void MathCursor::SelClear()
+MathAtom & MathCursor::par() const
{
- selection = false;
+ return *cursor().par_;
}
+InsetFormulaBase const * MathCursor::formula()
+{
+ return formula_;
+}
+
-void MathCursor::SelGetArea(int * xpoint, int * ypoint, int & n)
+MathCursor::idx_type MathCursor::idx() const
{
- if (!selection) {
- n = 0;
- xpoint[0] = 0;
- ypoint[0] = 0;
- return;
- }
+ return cursor().idx_;
+}
- // Balance anchor and cursor
- int xo;
- int yo;
- par()->GetXY(xo, yo);
- int w = par()->width();
- // cursor
- int x1 = xarray().xo() + xarray().pos2x(cursor_);
- int y1 = xarray().yo();
- //int a1 = xarray().ascent();
- //int d1 = xarray().descent();
-
- // anchor
- int x = xarray().xo() + xarray().pos2x(anchor_);
- int y = xarray().yo();
- int a = xarray().ascent();
- int d = xarray().descent();
-
- // single row selection
- n = 0;
- xpoint[n] = x;
- ypoint[n++] = y + d;
- xpoint[n] = x;
- ypoint[n++] = y - a;
-
- if (y != y1) {
- xpoint[n] = xo + w;
- ypoint[n++] = y - a;
-
- if (x1 < xo + w) {
- xpoint[n] = xo + w;
- ypoint[n++] = y1 - a;
- }
- }
- xpoint[n] = x1;
- ypoint[n++] = y1 - a;
- xpoint[n] = x1;
- ypoint[n++] = y1 + d;
-
- if (y != y1) {
- xpoint[n] = xo;
- ypoint[n++] = y1 + d;
- if (x > xo) {
- xpoint[n] = xo;
- ypoint[n++] = y + d;
- }
- }
- xpoint[n] = xpoint[0];
- ypoint[n++] = ypoint[0];
+MathCursor::idx_type & MathCursor::idx()
+{
+ return cursor().idx_;
+}
+
- //lyxerr << "AN[" << x << " " << y << " " << x1 << " " << y1 << "]\n";
- //lyxerr << "MT[" << a << " " << d << " " << a1 << " " << d1 << "]\n";
- //for (i = 0; i < np; ++i)
- // lyxerr << "XY[" << xpoint[i] << " " << ypoint[i] << "]\n";
+MathCursor::pos_type MathCursor::pos() const
+{
+ return cursor().pos_;
}
-void MathCursor::setAccent(int ac)
+MathCursor::pos_type & MathCursor::pos()
{
- if (ac > 0 && accent < 8)
- nestaccent[accent++] = ac;
- else
- accent = 0; // consumed!
+ return cursor().pos_;
}
-int MathCursor::getAccent() const
+bool MathCursor::inMacroMode() const
{
- return accent > 0 ? nestaccent[accent - 1] : 0;
+ return macroNamePos() != -1;
}
-void MathCursor::doAccent(char c, MathTextCodes t)
+bool MathCursor::selection() const
{
- MathInset * ac = 0;
+ return selection_;
+}
- for (int i = accent - 1; i >= 0; --i) {
- if (i == accent - 1)
- ac = new MathAccentInset(c, t, nestaccent[i]);
- else
- ac = new MathAccentInset(ac, nestaccent[i]);
- }
-
- if (ac)
- insert(ac);
- accent = 0; // consumed!
+MathArrayInset * MathCursor::enclosingArray(MathCursor::idx_type & idx) const
+{
+ for (int i = Cursor_.size() - 1; i >= 0; --i) {
+ MathArrayInset * p = (*Cursor_[i].par_)->asArrayInset();
+ if (p) {
+ idx = Cursor_[i].idx_;
+ return p;
+ }
+ }
+ return 0;
}
-void MathCursor::doAccent(MathInset * p)
+void MathCursor::pullArg(bool goright)
{
- MathInset * ac = 0;
+ dump("pullarg");
+ MathArray a = array();
- for (int i = accent - 1; i >= 0; --i) {
- if (i == accent - 1)
- ac = new MathAccentInset(p, nestaccent[i]);
- else
- ac = new MathAccentInset(ac, nestaccent[i]);
+ 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);
+ if (goright)
+ pos() += a.size();
}
+}
- if (ac)
- insert(ac);
- accent = 0; // consumed!
+MathStyles MathCursor::style() const
+{
+ return xarray().style();
}
-void MathCursor::handleFont(MathTextCodes t)
+void MathCursor::normalize() const
{
- if (selection) {
- int const p1 = std::min(cursor_, anchor_);
- int const p2 = std::max(cursor_, anchor_);
- MathArray & ar = array();
- for (int pos = p1; pos != p2; ar.next(pos))
- if (!ar.isInset(pos) && isalnum(ar.GetChar(pos))) {
- MathTextCodes c = ar.GetCode(pos) == t ? LM_TC_VAR : t;
- ar.setCode(pos, c);
- }
- } else {
- if (lastcode == t)
- lastcode = LM_TC_VAR;
- else
- lastcode = t;
+#ifdef WITH_WARNINGS
+#warning This is evil!
+#endif
+ MathCursor * it = const_cast<MathCursor *>(this);
+
+ if (idx() >= par()->nargs()) {
+ lyxerr << "this should not really happen - 1: "
+ << idx() << " " << par()->nargs() << "\n";
+ dump("error 2");
}
+ it->idx() = min(idx(), par()->nargs() - 1);
+
+ if (pos() > size()) {
+ lyxerr << "this should not really happen - 2: "
+ << pos() << " " << size() << "\n";
+ dump("error 4");
+ }
+ it->pos() = min(pos(), size());
}
-void MathCursor::GetPos(int & x, int & y)
+MathCursor::size_type MathCursor::size() const
{
- x = xarray().xo() + xarray().pos2x(cursor_);
- y = xarray().yo();
+ return array().size();
}
-MathTextCodes MathCursor::nextCode() const
+MathCursor::col_type MathCursor::col() const
{
- return array().GetCode(cursor_);
+ return par()->col(idx());
}
-MathTextCodes MathCursor::prevCode() const
+MathCursor::row_type MathCursor::row() const
{
- return array().GetCode(cursor_ - 1);
+ return par()->row(idx());
}
-MathInset * MathCursor::par() const
+bool MathCursor::hasPrevAtom() const
{
- return par_;
+ return pos() > 0;
}
-InsetFormulaBase const * MathCursor::formula()
+bool MathCursor::hasNextAtom() const
{
- return formula_;
+ return pos() < size();
}
-int MathCursor::pos() const
+MathAtom const & MathCursor::prevAtom() const
{
- return cursor_;
+ lyx::Assert(pos() > 0);
+ return array().at(pos() - 1);
}
-bool MathCursor::InMacroMode() const
+MathAtom & MathCursor::prevAtom()
{
- return macro_mode;
+ lyx::Assert(pos() > 0);
+ return array().at(pos() - 1);
}
-bool MathCursor::Selection() const
+MathAtom const & MathCursor::nextAtom() const
{
- return selection;
+ lyx::Assert(pos() < size());
+ return array().at(pos());
}
-void MathCursor::clearLastCode()
+MathAtom & MathCursor::nextAtom()
{
- lastcode = LM_TC_MIN;
+ lyx::Assert(pos() < size());
+ return array().at(pos());
}
-void MathCursor::setLastCode(MathTextCodes t)
+MathArray & MathCursor::array() const
{
- lastcode = t;
+ static MathArray dummy;
+
+ if (idx() >= par()->nargs()) {
+ lyxerr << "############ idx_ " << idx() << " not valid\n";
+ return dummy;
+ }
+
+ return cursor().cell();
}
-MathTextCodes MathCursor::getLastCode() const
+MathXArray & MathCursor::xarray() const
{
- return lastcode;
+ return cursor().xcell();
}
-MathInset * MathCursor::enclosing(MathInsetTypes t, int & idx) const
+void MathCursor::idxNext()
{
- if (par_->GetType() == t) {
- //lyxerr << "enclosing par is current\n";
- idx = idx_;
- return par_;
- }
- for (int i = path_.size() - 1; i >= 0; --i) {
- lyxerr << "checking level " << i << "\n";
- if (path_[i].par_->GetType() == t) {
- idx = path_[i].idx_;
- return path_[i].par_;
- }
- }
- return 0;
+ par()->idxNext(idx(), pos());
}
-void MathCursor::pullArg()
+
+void MathCursor::idxPrev()
{
- // pullArg
- MathArray a = array();
- if (!Left())
- return;
- normalize();
- array().erase(cursor_);
- array().insert(cursor_, a);
+ par()->idxPrev(idx(), pos());
}
-MathStyles MathCursor::style() const
+void MathCursor::splitCell()
{
- return xarray().style();
+ if (idx() == par()->nargs() - 1)
+ return;
+ MathArray ar = array();
+ ar.erase(0, pos());
+ array().erase(pos(), size());
+ ++idx();
+ pos() = 0;
+ array().insert(0, ar);
}
-void MathCursor::normalize() const
+void MathCursor::breakLine()
{
-#ifdef WITH_WARNINGS
-#warning This is evil!
-#endif
- MathCursor * it = const_cast<MathCursor *>(this);
+ // leave inner cells
+ while (popRight())
+ ;
+
+ 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;
+ pos() = size();
+ } else {
+ p->addRow(row());
+
+ // split line
+ 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));
+ }
+
+ // split cell
+ splitCell();
+ p->cell(idx()).swap(p->cell(idx() + p->ncols() - 1));
+ }
+}
- if (idx_ < 0 || idx_ > par_->nargs())
- lyxerr << "this should not really happen - 1\n";
- it->idx_ = max(idx_, 0);
- it->idx_ = min(idx_, par_->nargs());
- if (cursor_ < 0 || cursor_ > array().size())
- lyxerr << "this should not really happen - 2\n";
- it->cursor_ = max(cursor_, 0);
- it->cursor_ = min(cursor_, array().size());
+char MathCursor::valign() const
+{
+ idx_type idx;
+ MathArrayInset * p = enclosingArray(idx);
+ return p ? p->valign() : '\0';
}
-int MathCursor::col() const
+char MathCursor::halign() const
{
- return par_->col(idx_);
+ idx_type idx;
+ MathArrayInset * p = enclosingArray(idx);
+ return p ? p->halign(idx % p->ncols()) : '\0';
}
-int MathCursor::row() const
+void MathCursor::getSelection(MathCursorPos & i1, MathCursorPos & i2) const
{
- return par_->row(idx_);
+ MathCursorPos anc = normalAnchor();
+ if (anc < cursor()) {
+ i1 = anc;
+ i2 = cursor();
+ } else {
+ i1 = cursor();
+ i2 = anc;
+ }
}
-/*
-char MathIter::GetChar() const
+MathCursorPos & MathCursor::cursor()
{
- return array().GetChar(cursor_);
+ return Cursor_.back();
}
-string MathIter::readString()
+MathCursorPos const & MathCursor::cursor() const
{
- string s;
- int code = nextCode();
- for ( ; OK() && nextCode() == code; Next())
- s += GetChar();
+ return Cursor_.back();
+}
- return s;
+
+int MathCursor::cellXOffset() const
+{
+ return par()->cellXOffset(idx());
}
-*/
-MathInset * MathCursor::prevInset() const
+
+int MathCursor::cellYOffset() const
{
- normalize();
- int c = cursor_;
- if (!array().prev(c))
- return 0;
- return array().GetInset(c);
+ return par()->cellYOffset(idx());
}
-MathInset * MathCursor::nextInset() const
+int MathCursor::xpos() const
{
- normalize();
- return array().GetInset(cursor_);
+ return cellXOffset() + xarray().pos2x(pos());
}
-MathScriptInset * MathCursor::nearbyScriptInset() const
+int MathCursor::ypos() const
{
- normalize();
- MathScriptInset * p = array().prevScriptInset(cursor_);
- if (p)
- return p;
- return array().nextScriptInset(cursor_);
+ return cellYOffset();
}
-MathArray & MathCursor::array() const
+void MathCursor::gotoX(int x)
{
- static MathArray dummy;
- if (!par_) {
- lyxerr << "############ par_ not valid\n";
- return dummy;
- }
+ pos() = xarray().x2pos(x - cellXOffset());
+}
- if (idx_ < 0 || idx_ >= par_->nargs()) {
- lyxerr << "############ idx_ " << idx_ << " not valid\n";
- return dummy;
+
+bool MathCursor::goUp()
+{
+ // first ask the inset if it knows better then we
+ 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;
}
- return par_->cell(idx_);
+ // if not, apply brute force.
+ int x0;
+ int y0;
+ getPos(x0, y0);
+ std::vector<MathCursorPos> save = Cursor_;
+ MathAtom const & out = formula()->par();
+ y0 -= xarray().ascent();
+ for (int y = y0 - 4; y > out->yo() - out->ascent(); y -= 4) {
+ setPos(x0, y);
+ if (save != Cursor_ && xarray().yo() < y0)
+ return true;
+ }
+ Cursor_ = save;
+ return false;
}
-MathXArray & MathCursor::xarray() const
+bool MathCursor::goDown()
{
- return par_->xcell(idx_);
-}
+ // first ask the inset if it knows better then we
+ 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<MathCursorPos> save = Cursor_;
+ MathAtom const & out = formula()->par();
+ y0 += xarray().descent();
+ for (int y = y0 + 4; y < out->yo() + out->descent(); y += 4) {
+ setPos(x0, y);
+ if (save != Cursor_ && xarray().yo() > y0)
+ return true;
+ }
+ Cursor_ = save;
+ return false;
+}
-bool MathCursor::nextIsInset() const
+bool MathCursor::idxLeft()
{
- return cursor_ < array().size() && MathIsInset(nextCode());
+ return par()->idxLeft(idx(), pos());
}
-bool MathCursor::prevIsInset() const
+bool MathCursor::idxRight()
{
- return cursor_ > 0 && MathIsInset(prevCode());
+ return par()->idxRight(idx(), pos());
}
-int MathCursor::xpos() const
+void MathCursor::interpret(string const & s)
{
- normalize();
- return xarray().pos2x(cursor_);
+ //lyxerr << "interpret 1: '" << s << "'\n";
+ //lyxerr << "in: " << in_word_set(s) << " \n";
+
+ if (s.empty())
+ return;
+
+ if (s.size() == 1) {
+ interpret(s[0]);
+ return;
+ }
+
+ //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() > 7 && s.substr(0, 7) == "matrix ") {
+ unsigned int m = 1;
+ unsigned int n = 1;
+ string v_align;
+ string h_align;
+ istringstream is(s.substr(7).c_str());
+ is >> m >> n >> v_align >> h_align;
+ m = std::max(1u, m);
+ n = std::max(1u, n);
+ v_align += 'c';
+ niceInsert(MathAtom(new MathArrayInset(m, n, v_align[0], h_align)));
+ return;
+ }
+
+ if (s == "\\over" || s == "\\choose" || s == "\\atop") {
+ MathArray ar = array();
+ MathAtom t = createMathInset(s.substr(1));
+ t->asNestInset()->cell(0).swap(array());
+ pos() = 0;
+ niceInsert(t);
+ popRight();
+ left();
+ return;
+ }
+
+ niceInsert(createMathInset(s.substr(1)));
}
-void MathCursor::gotoX(int x)
+
+void MathCursor::interpret(char c)
{
- cursor_ = xarray().x2pos(x);
+ //lyxerr << "interpret 2: '" << c << "'\n";
+
+ if (inMacroMode()) {
+ string name = macroName();
+
+ if (name == "\\" && c == '#') {
+ insert(c, LM_TC_TEX);
+ return;
+ }
+
+ if (name == "\\" && c == '\\') {
+ backspace();
+ interpret("\\backslash");
+ return;
+ }
+
+ if (name == "\\#" && '1' <= c && c <= '9') {
+ insert(c, LM_TC_TEX);
+ macroModeClose();
+ return;
+ }
+
+ if (isalpha(c)) {
+ insert(c, LM_TC_TEX);
+ return;
+ }
+
+ if (name == "\\") {
+ insert(c, LM_TC_TEX);
+ macroModeClose();
+ return;
+ }
+
+ macroModeClose();
+ return;
+ }
+
+ // 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 (selection_)
+ selDel();
+
+ if (lastcode_ == LM_TC_TEXTRM) {
+ insert(c, LM_TC_TEXTRM);
+ return;
+ }
+
+ if (c == ' ') {
+ if (hasPrevAtom() && prevAtom()->asSpaceInset()) {
+ prevAtom()->asSpaceInset()->incSpace();
+ return;
+ }
+
+ if (mathcursor->popRight())
+ return;
+
+#warning look here
+ // this would not work if the inset is in an table!
+ //bv->text->cursorRight(bv, true);
+ //result = FINISHED;
+ return;
+ }
+
+ 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 == '\\') {
+ insert(c, LM_TC_TEX);
+ //bv->owner()->message(_("TeX mode"));
+ return;
+ }
+
+ // no special circumstances, so insert the character without any fuss
+ insert(c, LM_TC_MIN);
}
-void MathCursor::idxNext()
+
+
+////////////////////////////////////////////////////////////////////////
+
+
+bool operator==(MathCursorPos const & ti, MathCursorPos const & it)
{
- par_->idxNext(idx_, cursor_);
+ return ti.par_ == it.par_ && ti.idx_ == it.idx_ && ti.pos_ == it.pos_;
}
-void MathCursor::idxPrev()
+
+bool operator<(MathCursorPos const & ti, MathCursorPos const & it)
{
- par_->idxPrev(idx_, cursor_);
+ 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_;
}
-void MathCursor::splitCell()
+
+MathArray & MathCursorPos::cell(MathCursor::idx_type idx) const
{
- if (idx_ == par_->nargs() - 1)
- return;
- MathArray ar = array();
- ar.erase(0, cursor_);
- array().erase(cursor_, array().size());
- ++idx_;
- cursor_ = 0;
- array().insert(0, ar);
+ return (*par_)->cell(idx);
}
-void MathCursor::breakLine()
+
+MathArray & MathCursorPos::cell() const
{
- MathMatrixInset * p = static_cast<MathMatrixInset *>(formula()->par());
- if (p->GetType() == LM_OT_SIMPLE || p->GetType() == LM_OT_EQUATION) {
- p->mutate(LM_OT_EQNARRAY);
- p->addRow(row());
- idx_ = p->nrows();
- cursor_ = 0;
- } else {
- p->addRow(row());
+ return (*par_)->cell(idx_);
+}
- // 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);
- lyxerr << "swapping cells " << i1 << " and " << i2 << "\n";
- p->cell(i1).swap(p->cell(i2));
- }
- // split cell
- splitCell();
- p->cell(idx_).swap(p->cell(idx_ + p->ncols() - 1));
- }
+MathXArray & MathCursorPos::xcell(MathCursor::idx_type idx) const
+{
+ return (*par_)->xcell(idx);
}
-char MathCursor::valign() const
+
+MathXArray & MathCursorPos::xcell() const
{
- int idx;
- MathGridInset * p =
- static_cast<MathGridInset *>(enclosing(LM_OT_MATRIX, idx));
- return p ? p->valign() : 0;
+ return (*par_)->xcell(idx_);
}
-char MathCursor::halign() const
+
+MathCursorPos MathCursor::normalAnchor() const
{
- int idx;
- MathGridInset * p =
- static_cast<MathGridInset *>(enclosing(LM_OT_MATRIX, idx));
- return p ? p->halign(idx % p->ncols()) : 0;
+ // 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;
}
+
+
projects / lyx.git / blobdiff