]> git.lyx.org Git - lyx.git/blobdiff - src/cursor.C
split LyXFunc::getStatus() into inset specific chunks
[lyx.git] / src / cursor.C
index 1679c27d5e2e8fc53538a16280cf221db088d77b..85b7956e56855f7edfe0334a812d4911d623278c 100644 (file)
 
 #include <config.h>
 
-#include "buffer.h"
 #include "BufferView.h"
+#include "buffer.h"
 #include "cursor.h"
 #include "debug.h"
 #include "dispatchresult.h"
+#include "encoding.h"
 #include "funcrequest.h"
 #include "iterators.h"
+#include "language.h"
 #include "lfuns.h"
+#include "lyxfont.h"
 #include "lyxfunc.h" // only for setMessage()
 #include "lyxrc.h"
 #include "lyxrow.h"
 #include "lyxtext.h"
 #include "paragraph.h"
+#include "paragraph_funcs.h"
 
 #include "insets/updatableinset.h"
 #include "insets/insettabular.h"
@@ -57,19 +61,17 @@ limited_stack<string> theCutBuffer;
 
 
 LCursor::LCursor(BufferView & bv)
-       : cursor_(1), anchor_(1), bv_(&bv), current_(0),
-         cached_y_(0), x_target_(-1),
-         selection_(false), mark_(false)
+       : DocumentIterator(), bv_(&bv), anchor_(),
+         cached_y_(0), x_target_(-1), selection_(false), mark_(false)
 {}
 
 
 void LCursor::reset()
 {
-       cursor_.clear();
+       clear();
+       push_back(CursorSlice());
        anchor_.clear();
-       cursor_.push_back(CursorSlice());
        anchor_.push_back(CursorSlice());
-       current_ = 0;
        cached_y_ = 0;
        clearTargetX();
        selection_ = false;
@@ -77,97 +79,107 @@ void LCursor::reset()
 }
 
 
+void LCursor::setCursor(DocumentIterator const & cur, bool sel)
+{
+       // this (intentionally) does not touch the anchor
+       DocumentIterator::operator=(cur);
+       selection() = sel;
+}
+
+
 DispatchResult LCursor::dispatch(FuncRequest const & cmd0)
 {
-       lyxerr << "\nLCursor::dispatch: cmd: " << cmd0 << endl << *this << endl;
+       if (empty())
+               return DispatchResult();
+
+       //lyxerr << "\nLCursor::dispatch: cmd: " << cmd0 << endl << *this << endl;
        FuncRequest cmd = cmd0;
-       disp_.update(true);
-       disp_.val(NONE);
-       for (current_ = cursor_.size() - 1; current_ >= 1; --current_) {
-               // the inset's dispatch() is supposed to reset the update and
-               // val flags if necessary 
-               inset()->dispatch(*this, cmd);
-               
-               // "Mutate" the request for semi-handled requests that need
-               // additional handling in outer levels.
-               switch (disp_.val()) {
-                       case NONE:
-                               // the inset handled the event fully
-                               current_ = cursor_.size() - 1;
-                               return DispatchResult(true, true);
-                       case FINISHED:
-                               // the inset handled the event partially
-                               cmd = FuncRequest(LFUN_FINISHED_LEFT);
-                               break;
-                       case FINISHED_RIGHT:
-                               cmd = FuncRequest(LFUN_FINISHED_RIGHT);
-                               break;
-                       case FINISHED_UP:
-                               cmd = FuncRequest(LFUN_FINISHED_UP);
-                               break;
-                       case FINISHED_DOWN:
-                               cmd = FuncRequest(LFUN_FINISHED_DOWN);
-                               break;
-                       default:
-                               //lyxerr << "not handled on level " << current_
-                               //      << " val: " << disp_.val() << endl;
-                               break;
-               }
+       nopop_ = false;
+       LCursor safe = *this;
+
+       for ( ; size(); pop()) {
+               lyxerr << "\nLCursor::dispatch: cmd: " << cmd0 << endl << *this << endl;
+               BOOST_ASSERT(pos() <= lastpos());
+               BOOST_ASSERT(idx() <= lastidx());
+               BOOST_ASSERT(par() <= lastpar());
+
+               // The common case is 'LFUN handled, need update', so make the 
+               // LFUN handler's life easier by assuming this as default value.
+               // The handler can reset the update and val flags if necessary.
+               disp_.update(true);
+               disp_.dispatched(true);
+               inset().dispatch(*this, cmd);
+               if (disp_.dispatched())
+                       break;
        }
-       BOOST_ASSERT(current_ == 0);
-       bv_->text()->dispatch(*this, cmd);
-       //lyxerr << "   result: " << res.val() << endl;
-       current_ = cursor_.size() - 1;
+       // it completely to get a 'bomb early' behaviour in case this
+       // object will be used again.
+       if (nopop_ || !disp_.dispatched())
+               operator=(safe);
        return disp_;
 }
 
 
-void LCursor::push(InsetBase * inset)
+bool LCursor::getStatus(FuncRequest const & cmd, FuncStatus & status)
 {
-       lyxerr << "LCursor::push()  inset: " << inset << endl;
-       cursor_.push_back(CursorSlice(inset));
-       anchor_.push_back(CursorSlice(inset));
-       ++current_;
-       updatePos();
+       LCursor safe = *this;
+       for ( ; size(); pop()) {
+               //lyxerr << "\nLCursor::getStatus: cmd: " << cmd << endl << *this << endl;
+               BOOST_ASSERT(pos() <= lastpos());
+               BOOST_ASSERT(idx() <= lastidx());
+               BOOST_ASSERT(par() <= lastpar());
+
+               // The inset's getStatus() will return 'true' if it made
+               // a definitive decision on whether it want to handle the
+               // request or not. The result of this decision is put into
+               // the 'status' parameter.
+               if (inset().getStatus(*this, cmd, status))
+                       break;
+       }
+       operator=(safe);
+       return true;
 }
 
 
-void LCursor::pop(int depth)
+BufferView & LCursor::bv() const
 {
-       while (int(cursor_.size()) > depth + 1)
-               pop();
-       lyxerr << "LCursor::pop() result: " << *this << endl;
+       return *bv_;
 }
 
 
 void LCursor::pop()
 {
-       BOOST_ASSERT(cursor_.size() >= 1);
-       cursor_.pop_back();
+       BOOST_ASSERT(size() >= 1);
+       pop_back();
        anchor_.pop_back();
-       current_ = cursor_.size() - 1;
 }
 
 
-void LCursor::pushLeft(InsetBase * p)
+void LCursor::push(InsetBase & p)
+{
+       push_back(CursorSlice(p));
+}
+
+
+void LCursor::pushLeft(InsetBase & p)
 {
-       BOOST_ASSERT(!cursor_.empty());
+       BOOST_ASSERT(!empty());
        //lyxerr << "Entering inset " << t << " left" << endl;
        push(p);
-       p->idxFirst(*this);
+       p.idxFirst(*this);
 }
 
 
 bool LCursor::popLeft()
 {
-       BOOST_ASSERT(!cursor_.empty());
+       BOOST_ASSERT(!empty());
        //lyxerr << "Leaving inset to the left" << endl;
        if (depth() <= 1) {
                if (depth() == 1)
-                       inset()->notifyCursorLeaves(idx());
+                       inset().notifyCursorLeaves(idx());
                return false;
        }
-       inset()->notifyCursorLeaves(idx());
+       inset().notifyCursorLeaves(idx());
        pop();
        return true;
 }
@@ -175,42 +187,25 @@ bool LCursor::popLeft()
 
 bool LCursor::popRight()
 {
-       BOOST_ASSERT(!cursor_.empty());
+       BOOST_ASSERT(!empty());
        //lyxerr << "Leaving inset to the right" << endl;
        if (depth() <= 1) {
                if (depth() == 1)
-                       inset()->notifyCursorLeaves(idx());
+                       inset().notifyCursorLeaves(idx());
                return false;
        }
-       inset()->notifyCursorLeaves(idx());
+       inset().notifyCursorLeaves(idx());
        pop();
        ++pos();
        return true;
 }
 
 
-CursorSlice & LCursor::current()
-{
-       BOOST_ASSERT(!cursor_.empty());
-       //lyxerr << "accessing cursor slice " << current_
-       //      << ": " << cursor_[current_] << endl;
-       return cursor_[current_];
-}
-
-
-CursorSlice const & LCursor::current() const
-{
-       //lyxerr << "accessing cursor slice " << current_
-       //      << ": " << cursor_[current_] << endl;
-       return cursor_[current_];
-}
-
-
 int LCursor::currentMode()
 {
-       BOOST_ASSERT(!cursor_.empty());
-       for (int i = cursor_.size() - 1; i >= 1; --i) {
-               int res = cursor_[i].inset()->currentMode();
+       BOOST_ASSERT(!empty());
+       for (int i = size() - 1; i >= 1; --i) {
+               int res = operator[](i).inset().currentMode();
                if (res != MathInset::UNDECIDED_MODE)
                        return res;
        }
@@ -218,87 +213,50 @@ int LCursor::currentMode()
 }
 
 
-LyXText * LCursor::innerText() const
-{
-       BOOST_ASSERT(!cursor_.empty());
-       if (cursor_.size() > 1) {
-               // go up until first non-0 text is hit
-               // (innermost text is 0 in mathed)
-               for (int i = cursor_.size() - 1; i >= 1; --i)
-                       if (cursor_[i].text())
-                               return cursor_[i].text();
-       }
-       return bv_->text();
-}
-
-
-CursorSlice const & LCursor::innerTextSlice() const
-{
-       BOOST_ASSERT(!cursor_.empty());
-       if (cursor_.size() > 1) {
-               // go up until first non-0 text is hit
-               // (innermost text is 0 in mathed)
-               for (int i = cursor_.size() - 1; i >= 1; --i)
-                       if (cursor_[i].text())
-                               return cursor_[i];
-       }
-       return cursor_[0];
-}
-
-
 void LCursor::updatePos()
 {
-       BOOST_ASSERT(!cursor_.empty());
-       if (cursor_.size() > 1)
-               cached_y_ = bv_->top_y() + cursor_.back().inset()->yo();
-               //cached_y_ = cursor_.back().inset()->yo();
+       BOOST_ASSERT(!empty());
+       if (size() > 1)
+               cached_y_ = bv().top_y() + back().inset().yo();
+               //cached_y_ = back().inset().yo();
 }
 
 
 void LCursor::getDim(int & asc, int & des) const
 {
-       BOOST_ASSERT(!cursor_.empty());
        if (inMathed()) {
-               BOOST_ASSERT(inset());
-               BOOST_ASSERT(inset()->asMathInset());
-               //inset()->asMathInset()->getCursorDim(asc, des);
+               BOOST_ASSERT(inset().asMathInset());
+               //inset().asMathInset()->getCursorDim(asc, des);
                asc = 10;
                des = 10;
-       } else {
+       } else if (inTexted()) {
                Row const & row = textRow();
                asc = row.baseline();
                des = row.height() - asc;
+       } else {
+               lyxerr << "should this happen?" << endl;
+               asc = 10;
+               des = 10;
        }
 }
 
 
 void LCursor::getPos(int & x, int & y) const
 {
-       BOOST_ASSERT(!cursor_.empty());
        x = 0;
        y = 0;
-       if (cursor_.size() == 1) {
-               x = bv_->text()->cursorX(cursor_.front());
-               y = bv_->text()->cursorY(cursor_.front());
-       } else {
-               if (!inset()) {
-                       lyxerr << "#### LCursor::getPos: " << *this << endl;
-                       BOOST_ASSERT(inset());
-               }
-               inset()->getCursorPos(cursor_.back(), x, y);
-               // getCursorPos gives _screen_ coordinates. We need to add
-               // top_y to get document coordinates. This is hidden in cached_y_.
-               //y += cached_y_ - inset()->yo();
-               // The rest is non-obvious. The reason we have to have these
-               // extra computation is that the getCursorPos() calls rely
-               // on the inset's own knowledge of its screen position.
-               // If we scroll up or down in a big enough increment,
-               // inset->draw() is not called: this doesn't update
-               // inset.yo_, so getCursor() returns an old value.
-               // Ugly as you like.
-       }
-       //lyxerr << "#### LCursor::getPos: " << *this 
-       // << " x: " << x << " y: " << y << endl;
+       if (!empty())
+               inset().getCursorPos(back(), x, y);
+       // getCursorPos gives _screen_ coordinates. We need to add
+       // top_y to get document coordinates. This is hidden in cached_y_.
+       //y += cached_y_ - inset().yo();
+       // The rest is non-obvious. The reason we have to have these
+       // extra computation is that the getCursorPos() calls rely
+       // on the inset's own knowledge of its screen position.
+       // If we scroll up or down in a big enough increment,
+       // inset->draw() is not called: this doesn't update
+       // inset.yo_, so getCursor() returns an old value.
+       // Ugly as you like.
 }
 
 
@@ -308,60 +266,12 @@ void LCursor::paste(string const & data)
 }
 
 
-InsetBase * LCursor::innerInsetOfType(int code) const
-{
-       for (int i = cursor_.size() - 1; i >= 1; --i)
-               if (cursor_[i].inset_->lyxCode() == code)
-                       return cursor_[i].inset_;
-       return 0;
-}
-
-
-InsetTabular * LCursor::innerInsetTabular() const
-{
-       return static_cast<InsetTabular *>(innerInsetOfType(InsetBase::TABULAR_CODE));
-}
-
-
 void LCursor::resetAnchor()
 {
-       anchor_ = cursor_;
-}
-
-
-BufferView & LCursor::bv() const
-{
-       return *bv_;
-}
-
-
-MathAtom const & LCursor::prevAtom() const
-{
-       BOOST_ASSERT(pos() > 0);
-       return cell()[pos() - 1];
-}
-
-
-MathAtom & LCursor::prevAtom()
-{
-       BOOST_ASSERT(pos() > 0);
-       return cell()[pos() - 1];
-}
-
-
-MathAtom const & LCursor::nextAtom() const
-{
-       BOOST_ASSERT(pos() < lastpos());
-       return cell()[pos()];
+       anchor_ = *this;
 }
 
 
-MathAtom & LCursor::nextAtom()
-{
-       BOOST_ASSERT(pos() < lastpos());
-       return cell()[pos()];
-}
-
 
 bool LCursor::posLeft()
 {
@@ -396,34 +306,34 @@ CursorSlice const & LCursor::anchor() const
 CursorSlice const & LCursor::selBegin() const
 {
        if (!selection())
-               return cursor_.back();
-       return anchor() < cursor_.back() ? anchor() : cursor_.back();
+               return back();
+       return anchor() < back() ? anchor() : back();
 }
 
 
 CursorSlice & LCursor::selBegin()
 {
        if (!selection())
-               return cursor_.back();
+               return back();
        // can't use std::min as this returns a const ref
-       return anchor() < cursor_.back() ? anchor() : cursor_.back();
+       return anchor() < back() ? anchor() : back();
 }
 
 
 CursorSlice const & LCursor::selEnd() const
 {
        if (!selection())
-               return cursor_.back();
-       return anchor() > cursor_.back() ? anchor() : cursor_.back();
+               return back();
+       return anchor() > back() ? anchor() : back();
 }
 
 
 CursorSlice & LCursor::selEnd()
 {
        if (!selection())
-               return cursor_.back();
+               return back();
        // can't use std::min as this returns a const ref
-       return anchor() > cursor_.back() ? anchor() : cursor_.back();
+       return anchor() > back() ? anchor() : back();
 }
 
 
@@ -436,10 +346,10 @@ void LCursor::setSelection()
 }
 
 
-void LCursor::setSelection(CursorBase const & where, size_t n)
+void LCursor::setSelection(DocumentIterator const & where, size_t n)
 {
        selection() = true;
-       cursor_ = where;
+       setCursor(where, false);
        anchor_ = where;
        pos() += n;
 }
@@ -472,116 +382,11 @@ void LCursor::clearTargetX()
 }
 
 
-LyXText * LCursor::text() const
-{
-       return current_ ? current().text() : bv_->text();
-}
-
-
-Paragraph & LCursor::paragraph()
-{
-       BOOST_ASSERT(inTexted());
-       return current_ ? current().paragraph() : *bv_->text()->getPar(par());
-}
-
-
-Paragraph const & LCursor::paragraph() const
-{
-       BOOST_ASSERT(inTexted());
-       return current_ ? current().paragraph() : *bv_->text()->getPar(par());
-}
-
-
-Row & LCursor::textRow()
-{
-       return *paragraph().getRow(pos());
-}
-
-
-Row const & LCursor::textRow() const
-{
-       return *paragraph().getRow(pos());
-}
-
-
-LCursor::par_type LCursor::lastpar() const
-{
-       return inMathed() ? 0 : text()->paragraphs().size() - 1;
-}
-
-
-LCursor::pos_type LCursor::lastpos() const
-{
-       InsetBase * inset = current().inset();
-       return inset && inset->asMathInset() ? cell().size() : paragraph().size();
-}
-
-
-LCursor::row_type LCursor::crow() const
-{
-       return paragraph().row(pos());
-}
-
-
-LCursor::row_type LCursor::lastcrow() const
-{
-       return paragraph().rows.size();
-}
-
-
-size_t LCursor::nargs() const
-{
-       // assume 1x1 grid for 'plain text'
-       return current_ ? current().nargs() : 1;
-}
-
-
-size_t LCursor::ncols() const
-{
-       // assume 1x1 grid for 'plain text'
-       return current_ ? current().ncols() : 1;
-}
-
-
-size_t LCursor::nrows() const
-{
-       // assume 1x1 grid for 'plain text'
-       return current_ ? current().nrows() : 1;
-}
-
-
-LCursor::row_type LCursor::row() const
-{
-       BOOST_ASSERT(current_ > 0);
-       return current().row();
-}
-
-
-LCursor::col_type LCursor::col() const
-{
-       BOOST_ASSERT(current_ > 0);
-       return current().col();
-}
-
-
-MathArray const & LCursor::cell() const
-{
-       BOOST_ASSERT(current_ > 0);
-       return current().cell();
-}
-
-
-MathArray & LCursor::cell()
-{
-       BOOST_ASSERT(current_ > 0);
-       return current().cell();
-}
-
 
 void LCursor::info(std::ostream & os) const
 {
        for (int i = 1, n = depth(); i < n; ++i) {
-               cursor_[i].inset()->infoize(os);
+               operator[](i).inset().infoize(os);
                os << "  ";
        }
        if (pos() != 0)
@@ -597,13 +402,13 @@ void region(CursorSlice const & i1, CursorSlice const & i2,
        LCursor::row_type & r1, LCursor::row_type & r2,
        LCursor::col_type & c1, LCursor::col_type & c2)
 {
-       InsetBase * p = i1.inset();
-       c1 = p->col(i1.idx_);
-       c2 = p->col(i2.idx_);
+       InsetBase & p = i1.inset();
+       c1 = p.col(i1.idx_);
+       c2 = p.col(i2.idx_);
        if (c1 > c2)
                swap(c1, c2);
-       r1 = p->row(i1.idx_);
-       r2 = p->row(i2.idx_);
+       r1 = p.row(i1.idx_);
+       r2 = p.row(i2.idx_);
        if (r1 > r2)
                swap(r1, r2);
 }
@@ -620,7 +425,7 @@ string LCursor::grabSelection()
        CursorSlice i2 = selEnd();
 
        if (i1.idx_ == i2.idx_) {
-               if (i1.inset()->asMathInset()) {
+               if (i1.inset().asMathInset()) {
                        MathArray::const_iterator it = i1.cell().begin();
                        return asString(MathArray(it + i1.pos_, it + i2.pos_));
                } else {
@@ -633,7 +438,7 @@ string LCursor::grabSelection()
        region(i1, i2, r1, r2, c1, c2);
 
        string data;
-       if (i1.inset()->asMathInset()) {
+       if (i1.inset().asMathInset()) {
                for (row_type row = r1; row <= r2; ++row) {
                        if (row > r1)
                                data += "\\\\";
@@ -656,7 +461,7 @@ void LCursor::eraseSelection()
        CursorSlice const & i1 = selBegin();
        CursorSlice const & i2 = selEnd();
 #warning FIXME
-       if (i1.inset()->asMathInset()) {
+       if (i1.inset().asMathInset()) {
                if (i1.idx_ == i2.idx_) {
                        i1.cell().erase(i1.pos_, i2.pos_);
                } else {
@@ -668,7 +473,7 @@ void LCursor::eraseSelection()
                                for (col_type col = c1; col <= c2; ++col)
                                        p->cell(p->index(row, col)).clear();
                }
-               current() = i1;
+               back() = i1;
        } else {
                lyxerr << "can't erase this selection 1" << endl;
        }
@@ -753,9 +558,8 @@ void LCursor::selClearOrDel()
 
 std::ostream & operator<<(std::ostream & os, LCursor const & cur)
 {
-       for (size_t i = 0, n = cur.cursor_.size(); i != n; ++i)
-               os << " " << cur.cursor_[i] << " | " << cur.anchor_[i] << "\n";
-       os << " current: " << cur.current_ << endl;
+       for (size_t i = 0, n = cur.size(); i != n; ++i)
+               os << " " << cur.operator[](i) << " | " << cur.anchor_[i] << "\n";
        os << " selection: " << cur.selection_ << endl;
        return os;
 }
@@ -763,89 +567,21 @@ std::ostream & operator<<(std::ostream & os, LCursor const & cur)
 
 
 
-//
-// CursorBase
-//
-
-
-void increment(CursorBase & it)
-{
-       CursorSlice & top = it.back();
-       MathArray & ar = top.asMathInset()->cell(top.idx_);
-
-       // move into the current inset if possible
-       // it is impossible for pos() == size()!
-       MathInset * n = 0;
-       if (top.pos() != top.lastpos())
-               n = (ar.begin() + top.pos_)->nucleus();
-       if (n && n->isActive()) {
-               it.push_back(CursorSlice(n));
-               return;
-       }
-
-       // otherwise move on one cell back if possible
-       if (top.pos() < top.lastpos()) {
-               // pos() == lastpos() is valid!
-               ++top.pos_;
-               return;
-       }
-
-       // otherwise try to move on one cell if possible
-       while (top.idx() < top.lastidx()) {
-               ++top.idx_;
-               if (top.asMathInset()->validCell(top.idx_)) {
-                       top.pos_ = 0;
-                       return;
-               }
-       }
-
-       // otherwise leave array, move on one back
-       // this might yield pos() == size(), but that's a ok.
-       it.pop_back();
-       // it certainly invalidates top
-       ++it.back().pos_;
-}
-
-
-CursorBase ibegin(InsetBase * p)
-{
-       CursorBase it;
-       it.push_back(CursorSlice(p));
-       return it;
-}
-
-
-CursorBase iend(InsetBase * p)
-{
-       CursorBase it;
-       it.push_back(CursorSlice(p));
-       CursorSlice & cur = it.back();
-       cur.idx() = cur.lastidx();
-       cur.pos() = cur.lastpos();
-       return it;
-}
-
-
-
-
 ///////////////////////////////////////////////////////////////////
 //
 // The part below is the non-integrated rest of the original math
 // cursor. This should be either generalized for texted or moved
-// back to the math insets.
+// back to mathed (in most cases to MathNestInset).
 //
 ///////////////////////////////////////////////////////////////////
 
-#include "mathed/math_braceinset.h"
 #include "mathed/math_charinset.h"
-#include "mathed/math_commentinset.h"
 #include "mathed/math_factory.h"
 #include "mathed/math_gridinset.h"
 #include "mathed/math_macroarg.h"
 #include "mathed/math_macrotemplate.h"
 #include "mathed/math_mathmlstream.h"
 #include "mathed/math_scriptinset.h"
-#include "mathed/math_spaceinset.h"
 #include "mathed/math_support.h"
 #include "mathed/math_unknowninset.h"
 
@@ -855,13 +591,13 @@ CursorBase iend(InsetBase * p)
 bool LCursor::isInside(InsetBase const * p)
 {
        for (unsigned i = 0; i < depth(); ++i)
-               if (cursor_[i].inset() == p)
+               if (&operator[](i).inset() == p)
                        return true;
        return false;
 }
 
 
-bool LCursor::openable(MathAtom const & t)
+bool LCursor::openable(MathAtom const & t) const
 {
        if (!t->isActive())
                return false;
@@ -875,59 +611,15 @@ bool LCursor::openable(MathAtom const & t)
        // we can't move into anything new during selection
        if (depth() == anchor_.size())
                return false;
-       if (!ptr_cmp(t.nucleus(), anchor_[depth()].inset()))
+       if (!ptr_cmp(t.nucleus(), &anchor_[depth()].inset()))
                return false;
 
        return true;
 }
 
 
-bool LCursor::inNucleus()
-{
-       return inset()->asMathInset()->asScriptInset() && idx() == 2;
-}
-
-
-bool LCursor::left()
-{
-       autocorrect() = false;
-       clearTargetX();
-       if (inMacroMode()) {
-               macroModeClose();
-               return true;
-       }
-
-       if (pos() != 0 && openable(prevAtom())) {
-               posLeft();
-               push(nextAtom().nucleus());
-               inset()->idxLast(*this);
-               return true;
-       }
-
-       return posLeft() || idxLeft() || popLeft() || selection();
-}
-
-
-bool LCursor::right()
-{
-       autocorrect() = false;
-       clearTargetX();
-       if (inMacroMode()) {
-               macroModeClose();
-               return true;
-       }
-
-       if (pos() != lastpos() && openable(nextAtom())) {
-               pushLeft(nextAtom().nucleus());
-               inset()->idxFirst(*this);
-               return true;
-       }
-
-       return posRight() || idxRight() || popRight() || selection();
-}
-
-
-bool positionable(CursorBase const & cursor, CursorBase const & anchor)
+bool positionable(DocumentIterator const & cursor,
+       DocumentIterator const & anchor)
 {
        // avoid deeper nested insets when selecting
        if (cursor.size() > anchor.size())
@@ -935,7 +627,7 @@ bool positionable(CursorBase const & cursor, CursorBase const & anchor)
 
        // anchor might be deeper, should have same path then
        for (size_t i = 0; i < cursor.size(); ++i)
-               if (cursor[i].inset() != anchor[i].inset())
+               if (&cursor[i].inset() != &anchor[i].inset())
                        return false;
 
        // position should be ok.
@@ -957,28 +649,6 @@ void LCursor::setScreenPos(int x, int y)
 
 
 
-bool LCursor::home()
-{
-       autocorrect() = false;
-       macroModeClose();
-       if (!inset()->idxHome(*this))
-               return popLeft();
-       clearTargetX();
-       return true;
-}
-
-
-bool LCursor::end()
-{
-       autocorrect() = false;
-       macroModeClose();
-       if (!inset()->idxEnd(*this))
-               return popRight();
-       clearTargetX();
-       return true;
-}
-
-
 void LCursor::plainErase()
 {
        cell().erase(pos());
@@ -1007,23 +677,21 @@ void LCursor::plainInsert(MathAtom const & t)
 void LCursor::insert(string const & str)
 {
        lyxerr << "LCursor::insert str '" << str << "'" << endl;
-       selClearOrDel();
-#if 0
        for (string::const_iterator it = str.begin(); it != str.end(); ++it)
-               plainInsert(MathAtom(new MathCharInset(*it)));
-#else
-       MathArray ar;
-       asArray(str, ar);
-       insert(ar);
-#endif
+               insert(*it);
 }
 
 
 void LCursor::insert(char c)
 {
        //lyxerr << "LCursor::insert char '" << c << "'" << endl;
-       selClearOrDel();
-       plainInsert(MathAtom(new MathCharInset(c)));
+       BOOST_ASSERT(!empty());
+       if (inMathed()) {
+               selClearOrDel();
+               plainInsert(MathAtom(new MathCharInset(c)));
+       } else {
+               text()->insertChar(*this, c);
+       }
 }
 
 
@@ -1066,7 +734,7 @@ void LCursor::niceInsert(MathAtom const & t)
                posLeft();
                // be careful here: don't use 'pushLeft(t)' as this we need to
                // push the clone, not the original
-               pushLeft(nextAtom().nucleus());
+               pushLeft(*nextInset());
                paste(safe);
        }
 }
@@ -1092,7 +760,7 @@ bool LCursor::backspace()
        }
 
        if (pos() == 0) {
-               if (inset()->nargs() == 1 && depth() == 1 && lastpos() == 0)
+               if (inset().nargs() == 1 && depth() == 1 && lastpos() == 0)
                        return false;
                pullArg();
                return true;
@@ -1110,7 +778,7 @@ bool LCursor::backspace()
                // let's require two backspaces for 'big stuff' and
                // highlight on the first
                selection() = true;
-               left();
+               --pos();
        } else {
                --pos();
                plainErase();
@@ -1131,25 +799,25 @@ bool LCursor::erase()
        }
 
        // delete empty cells if possible
-       if (pos() == lastpos() && inset()->idxDelete(idx()))
+       if (pos() == lastpos() && inset().idxDelete(idx()))
                return true;
 
        // special behaviour when in last position of cell
        if (pos() == lastpos()) {
-               bool one_cell = inset()->nargs() == 1;
+               bool one_cell = inset().nargs() == 1;
                if (one_cell && depth() == 1 && lastpos() == 0)
                        return false;
                // remove markup
                if (one_cell)
                        pullArg();
                else
-                       inset()->idxGlue(idx());
+                       inset().idxGlue(idx());
                return true;
        }
 
-       if (pos() != lastpos() && inset()->nargs() > 0) {
+       if (pos() != lastpos() && inset().nargs() > 0) {
                selection() = true;
-               right();
+               ++pos();
        } else {
                plainErase();
        }
@@ -1161,10 +829,10 @@ bool LCursor::erase()
 bool LCursor::up()
 {
        macroModeClose();
-       CursorBase save = cursor_;
+       DocumentIterator save = *this;
        if (goUpDown(true))
                return true;
-       cursor_ = save;
+       setCursor(save, false);
        autocorrect() = false;
        return selection();
 }
@@ -1173,10 +841,10 @@ bool LCursor::up()
 bool LCursor::down()
 {
        macroModeClose();
-       CursorBase save = cursor_;
+       DocumentIterator save = *this;
        if (goUpDown(false))
                return true;
-       cursor_ = save;
+       setCursor(save, false);
        autocorrect() = false;
        return selection();
 }
@@ -1199,8 +867,8 @@ void LCursor::macroModeClose()
        string const name = s.substr(1);
 
        // prevent entering of recursive macros
-       if (formula()->lyxCode() == InsetOld::MATHMACRO_CODE
-                       && formula()->getInsetName() == name)
+       InsetBase const * macro = innerInsetOfType(InsetBase::MATHMACRO_CODE);
+       if (macro && macro->getInsetName() == name)
                lyxerr << "can't enter recursive macro" << endl;
 
        niceInsert(createMathInset(name));
@@ -1220,7 +888,7 @@ void LCursor::handleNest(MathAtom const & a, int c)
        asArray(grabAndEraseSelection(), t.nucleus()->cell(c));
        insert(t);
        posLeft();
-       pushLeft(nextAtom().nucleus());
+       pushLeft(*nextInset());
 }
 
 
@@ -1237,8 +905,8 @@ int LCursor::targetX() const
 
 MathHullInset * LCursor::formula() const
 {
-       for (int i = cursor_.size() - 1; i >= 1; --i) {
-               MathInset * inset = cursor_[i].inset()->asMathInset();
+       for (int i = size() - 1; i >= 1; --i) {
+               MathInset * inset = operator[](i).inset().asMathInset();
                if (inset && inset->asHullInset())
                        return static_cast<MathHullInset *>(inset);
        }
@@ -1282,12 +950,12 @@ bool LCursor::inMacroArgMode() const
 MathGridInset * LCursor::enclosingGrid(idx_type & idx) const
 {
        for (MathInset::difference_type i = depth() - 1; i >= 0; --i) {
-               MathInset * m = cursor_[i].inset()->asMathInset();
+               MathInset * m = operator[](i).inset().asMathInset();
                if (!m)
                        return 0;
                MathGridInset * p = m->asGridInset();
                if (p) {
-                       idx = cursor_[i].idx_;
+                       idx = operator[](i).idx_;
                        return p;
                }
        }
@@ -1313,8 +981,8 @@ void LCursor::touch()
 {
 #warning look here
 #if 0
-       CursorBase::const_iterator it = cursor_.begin();
-       CursorBase::const_iterator et = cursor_.end();
+       DocumentIterator::const_iterator it = begin();
+       DocumentIterator::const_iterator et = end();
        for ( ; it != et; ++it)
                it->cell().touch();
 #endif
@@ -1326,7 +994,7 @@ void LCursor::normalize()
        if (idx() >= nargs()) {
                lyxerr << "this should not really happen - 1: "
                       << idx() << ' ' << nargs()
-                      << " in: " << inset() << endl;
+                      << " in: " << &inset() << endl;
        }
        idx() = min(idx(), lastidx());
 
@@ -1335,7 +1003,7 @@ void LCursor::normalize()
                        << pos() << ' ' << lastpos() <<  " in idx: " << idx()
                       << " in atom: '";
                WriteStream wi(lyxerr, false, true);
-               inset()->asMathInset()->write(wi);
+               inset().asMathInset()->write(wi);
                lyxerr << endl;
        }
        pos() = min(pos(), lastpos());
@@ -1403,7 +1071,7 @@ bool LCursor::goUpDown(bool up)
        }
 
        // try current cell for e.g. text insets
-       if (inset()->idxUpDown2(*this, up))
+       if (inset().idxUpDown2(*this, up))
                return true;
 
        //xarray().boundingBox(xlow, xhigh, ylow, yhigh);
@@ -1418,9 +1086,9 @@ bool LCursor::goUpDown(bool up)
 
        // try to find an inset that knows better then we
        while (1) {
-               //lyxerr << "updown: We are in " << inset() << " idx: " << idx() << endl;
+               //lyxerr << "updown: We are in " << &inset() << " idx: " << idx() << endl;
                // ask inset first
-               if (inset()->idxUpDown(*this, up)) {
+               if (inset().idxUpDown(*this, up)) {
                        // try to find best position within this inset
                        if (!selection())
                                bruteFind2(xo, yo);
@@ -1450,17 +1118,17 @@ bool LCursor::goUpDown(bool up)
 
 bool LCursor::bruteFind(int x, int y, int xlow, int xhigh, int ylow, int yhigh)
 {
-       CursorBase best_cursor;
+       DocumentIterator best_cursor;
        double best_dist = 1e10;
 
-       CursorBase it = ibegin(formula());
-       CursorBase et = iend(formula());
+       DocumentIterator it = insetBegin(bv().buffer()->inset());
+       DocumentIterator et = insetEnd();
        while (1) {
                // avoid invalid nesting when selecting
                if (!selection() || positionable(it, anchor_)) {
                        int xo, yo;
                        CursorSlice & cur = it.back();
-                       cur.inset()->getCursorPos(cur, xo, yo);
+                       cur.inset().getCursorPos(cur, xo, yo);
                        if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
                                double d = (x - xo) * (x - xo) + (y - yo) * (y - yo);
                                //lyxerr << "x: " << x << " y: " << y << " d: " << endl;
@@ -1475,11 +1143,11 @@ bool LCursor::bruteFind(int x, int y, int xlow, int xhigh, int ylow, int yhigh)
 
                if (it == et)
                        break;
-               increment(it);
+               it.forwardPos();
        }
 
        if (best_dist < 1e10)
-               cursor_ = best_cursor;
+               setCursor(best_cursor, false);
        return best_dist < 1e10;
 }
 
@@ -1488,242 +1156,25 @@ void LCursor::bruteFind2(int x, int y)
 {
        double best_dist = 1e10;
 
-       CursorBase it = cursor_;
+       DocumentIterator it = *this;
        it.back().pos() = 0;
-       CursorBase et = cursor_;
+       DocumentIterator et = *this;
        et.back().pos() = et.back().asMathInset()->cell(et.back().idx_).size();
        for (int i = 0; ; ++i) {
                int xo, yo;
                CursorSlice & cur = it.back();
-               cur.inset()->getCursorPos(cur, xo, yo);
+               cur.inset().getCursorPos(cur, xo, yo);
                double d = (x - xo) * (x - xo) + (y - yo) * (y - yo);
                // '<=' in order to take the last possible position
                // this is important for clicking behind \sum in e.g. '\sum_i a'
                lyxerr << "i: " << i << " d: " << d << " best: " << best_dist << endl;
                if (d <= best_dist) {
                        best_dist = d;
-                       cursor_ = it;
+                       setCursor(it, false);
                }
                if (it == et)
                        break;
-               increment(it);
-       }
-}
-
-
-bool LCursor::idxLineLast()
-{
-       idx() -= idx() % ncols();
-       idx() += ncols() - 1;
-       pos() = lastpos();
-       return true;
-}
-
-
-bool LCursor::idxLeft()
-{
-       return inset()->idxLeft(*this);
-}
-
-
-bool LCursor::idxRight()
-{
-       return inset()->idxRight(*this);
-}
-
-
-bool LCursor::script(bool up)
-{
-       // Hack to get \\^ and \\_ working
-       lyxerr << "handling script: up: " << up << endl;
-       if (inMacroMode() && macroName() == "\\") {
-               if (up)
-                       niceInsert(createMathInset("mathcircumflex"));
-               else
-                       interpret('_');
-               return true;
-       }
-
-       macroModeClose();
-       string safe = grabAndEraseSelection();
-       if (inNucleus()) {
-               // we are in a nucleus of a script inset, move to _our_ script
-               inset()->asMathInset()->asScriptInset()->ensure(up);
-               idx() = up;
-               pos() = 0;
-       } else if (pos() != 0 && prevAtom()->asScriptInset()) {
-               --pos();
-               nextAtom().nucleus()->asScriptInset()->ensure(up);
-               push(nextInset());
-               idx() = up;
-               pos() = lastpos();
-       } else if (pos() != 0) {
-               --pos();
-               cell()[pos()] = MathAtom(new MathScriptInset(nextAtom(), up));
-               push(nextInset());
-               idx() = up;
-               pos() = 0;
-       } else {
-               plainInsert(MathAtom(new MathScriptInset(up)));
-               --pos();
-               nextAtom().nucleus()->asScriptInset()->ensure(up);
-               push(nextInset());
-               idx() = up;
-               pos() = 0;
-       }
-       paste(safe);
-       return true;
-}
-
-
-bool LCursor::interpret(char c)
-{
-       //lyxerr << "interpret 2: '" << c << "'" << endl;
-       clearTargetX();
-       if (inMacroArgMode()) {
-               posLeft();
-               plainErase();
-#warning FIXME
-#if 0
-               int n = c - '0';
-               MathMacroTemplate const * p = formula()->asMacroTemplate();
-               if (p && 1 <= n && n <= p->numargs())
-                       insert(MathAtom(new MathMacroArgument(c - '0')));
-               else {
-                       insert(createMathInset("#"));
-                       interpret(c); // try again
-               }
-#endif
-               return true;
-       }
-
-       // handle macroMode
-       if (inMacroMode()) {
-               string name = macroName();
-               //lyxerr << "interpret name: '" << name << "'" << endl;
-
-               if (isalpha(c)) {
-                       activeMacro()->setName(activeMacro()->name() + c);
-                       return true;
-               }
-
-               // handle 'special char' macros
-               if (name == "\\") {
-                       // remove the '\\'
-                       backspace();
-                       if (c == '\\') {
-                               if (currentMode() == MathInset::TEXT_MODE)
-                                       niceInsert(createMathInset("textbackslash"));
-                               else
-                                       niceInsert(createMathInset("backslash"));
-                       } else if (c == '{') {
-                               niceInsert(MathAtom(new MathBraceInset));
-                       } else {
-                               niceInsert(createMathInset(string(1, c)));
-                       }
-                       return true;
-               }
-
-               // leave macro mode and try again if necessary
-               macroModeClose();
-               if (c == '{')
-                       niceInsert(MathAtom(new MathBraceInset));
-               else if (c != ' ')
-                       interpret(c);
-               return true;
-       }
-
-       // This is annoying as one has to press <space> far too often.
-       // Disable it.
-
-       if (0) {
-               // leave autocorrect mode if necessary
-               if (autocorrect() && c == ' ') {
-                       autocorrect() = false;
-                       return true;
-               }
-       }
-
-       // just clear selection on pressing the space bar
-       if (selection() && c == ' ') {
-               selection() = false;
-               return true;
-       }
-
-       selClearOrDel();
-
-       if (c == '\\') {
-               //lyxerr << "starting with macro" << endl;
-               insert(MathAtom(new MathUnknownInset("\\", false)));
-               return true;
-       }
-
-       if (c == '\n') {
-               if (currentMode() == MathInset::TEXT_MODE)
-                       insert(c);
-               return true;
-       }
-
-       if (c == ' ') {
-               if (currentMode() == MathInset::TEXT_MODE) {
-                       // insert spaces in text mode,
-                       // but suppress direct insertion of two spaces in a row
-                       // the still allows typing  '<space>a<space>' and deleting the 'a', but
-                       // it is better than nothing...
-                       if (!pos() != 0 || prevAtom()->getChar() != ' ')
-                               insert(c);
-                       return true;
-               }
-               if (pos() != 0 && prevAtom()->asSpaceInset()) {
-                       prevAtom().nucleus()->asSpaceInset()->incSpace();
-                       return true;
-               }
-               if (popRight())
-                       return true;
-               // if are at the very end, leave the formula
-               return pos() != lastpos();
-       }
-
-       if (c == '_') {
-               script(false);
-               return true;
-       }
-
-       if (c == '^') {
-               script(true);
-               return true;
-       }
-
-       if (c == '{' || c == '}' || c == '#' || c == '&' || c == '$') {
-               niceInsert(createMathInset(string(1, c)));
-               return true;
-       }
-
-       if (c == '%') {
-               niceInsert(MathAtom(new MathCommentInset));
-               return true;
-       }
-
-       // try auto-correction
-       //if (autocorrect() && hasPrevAtom() && math_autocorrect(prevAtom(), c))
-       //      return true;
-
-       // no special circumstances, so insert the character without any fuss
-       insert(c);
-       autocorrect() = true;
-       return true;
-}
-
-
-void LCursor::lockToggle()
-{
-       if (pos() != lastpos()) {
-               // toggle previous inset ...
-               nextAtom().nucleus()->lock(!nextAtom()->lock());
-       } else if (popLeft() && pos() != lastpos()) {
-               // ... or enclosing inset if we are in the last inset position
-               nextAtom().nucleus()->lock(!nextAtom()->lock());
-               ++pos();
+               it.forwardPos();
        }
 }
 
@@ -1736,7 +1187,7 @@ CursorSlice LCursor::normalAnchor()
        }
        //lyx::BOOST_ASSERT(Anchor_.size() >= cursor.depth());
        // use Anchor on the same level as Cursor
-       CursorSlice normal = anchor_[current_];
+       CursorSlice normal = anchor_[size() - 1];
 #if 0
        if (depth() < anchor_.size() && !(normal < xx())) {
                // anchor is behind cursor -> move anchor behind the inset
@@ -1747,38 +1198,6 @@ CursorSlice LCursor::normalAnchor()
 }
 
 
-/*
-DispatchResult dispatch(LCursor & cur, FuncRequest const & cmd)
-{
-       // mouse clicks are somewhat special
-       // check
-       switch (cmd.action) {
-       case LFUN_MOUSE_PRESS:
-       case LFUN_MOUSE_MOTION:
-       case LFUN_MOUSE_RELEASE:
-       case LFUN_MOUSE_DOUBLE: {
-               CursorSlice & pos = cursor_.back();
-               int x = 0;
-               int y = 0;
-               getPos(x, y);
-               if (x < cmd.x && pos() != 0) {
-                       DispatchResult const res = prevAtom().nucleus()->dispatch(cmd);
-                       if (res.dispatched())
-                               return res;
-               }
-               if (x > cmd.x && pos() != lastpos()) {
-                       DispatchResult const res = inset()->dispatch(cmd);
-                       if (res.dispatched())
-                               return res;
-               }
-       }
-       default:
-       break;
-       }
-}
-*/
-
-
 void LCursor::handleFont(string const & font)
 {
        lyxerr << "LCursor::handleFont: " << font << endl;
@@ -1814,48 +1233,6 @@ void LCursor::handleFont(string const & font)
 }
 
 
-bool LCursor::inMathed() const
-{
-       return formula();
-}
-
-
-bool LCursor::inTexted() const
-{
-       return !formula();
-}
-
-
-InsetBase * LCursor::nextInset()
-{
-       if (pos() == lastpos())
-               return 0;
-       if (inMathed()) 
-               return nextAtom().nucleus();
-       return paragraph().isInset(pos()) ? paragraph().getInset(pos()) : 0;
-}
-
-
-InsetBase * LCursor::prevInset()
-{
-       if (pos() == 0)
-               return 0;
-       if (inMathed()) 
-               return prevAtom().nucleus();
-       return paragraph().isInset(pos() - 1) ? paragraph().getInset(pos() - 1) : 0;
-}
-
-
-InsetBase const * LCursor::prevInset() const
-{
-       if (pos() == 0)
-               return 0;
-       if (inMathed()) 
-               return prevAtom().nucleus();
-       return paragraph().isInset(pos() - 1) ? paragraph().getInset(pos() - 1) : 0;
-}
-
-
 void LCursor::message(string const & msg) const
 {
        bv().owner()->getLyXFunc().setMessage(msg);
@@ -1900,7 +1277,7 @@ string LCursor::selectionAsString(bool label) const
                return result;
        }
 
-#warning an mathed?
+#warning and mathed?
        return string();
 }
 
@@ -1912,7 +1289,11 @@ string LCursor::currentState()
                info(os);
                return os.str();
        }
-       return text()->currentState(*this);
+
+       if (inTexted())
+        return text()->currentState(*this);
+
+       return string();
 }
 
 
@@ -1920,13 +1301,14 @@ string LCursor::currentState()
 void LCursor::replaceWord(string const & replacestring)
 {
        LyXText * t = text();
+       BOOST_ASSERT(t);
 
        t->replaceSelectionWithString(*this, replacestring);
        t->setSelectionRange(*this, replacestring.length());
 
        // Go back so that replacement string is also spellchecked
        for (string::size_type i = 0; i < replacestring.length() + 1; ++i)
-               t->cursorLeft(*this, true);
+               t->cursorLeft(*this);
 }
 
 
@@ -1942,19 +1324,34 @@ string LCursor::getPossibleLabel()
 }
 
 
-void LCursor::notdispatched()
+Encoding const * LCursor::getEncoding() const
 {
-       disp_.dispatched(false);
+       if (empty())
+               return 0;
+       if (!bv().buffer())
+               return 0;
+       int s = 0;
+       // go up until first non-0 text is hit
+       // (innermost text is 0 in mathed)
+       for (s = size() - 1; s >= 0; --s)
+               if (operator[](s).text())
+                       break;
+       CursorSlice const & sl = operator[](s);
+       LyXText & text = *sl.text();
+       ParagraphList::iterator pit = text.getPar(sl.par());
+       LyXFont font = pit->getFont(
+               bv().buffer()->params(), sl.pos(), outerFont(pit, text.paragraphs()));  
+       return font.language()->encoding();
 }
 
 
-void LCursor::dispatched(dispatch_result_t res)
+void LCursor::undispatched()
 {
-       disp_.val(res);
+       disp_.dispatched(false);
 }
 
 
-void LCursor::noupdate()
+void LCursor::noUpdate()
 {
        disp_.update(false);
 }