* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
+ * \author Alejandro Aguilar Sierra
+ * \author Alfredo Braunstein
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
#include <config.h>
-#include "buffer.h"
#include "BufferView.h"
+#include "buffer.h"
#include "cursor.h"
+#include "coordcache.h"
+#include "CutAndPaste.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 "lyxrow.h"
+#include "paragraph_funcs.h"
+#include "pariterator.h"
#include "insets/updatableinset.h"
#include "insets/insettabular.h"
#include "insets/insettext.h"
+#include "mathed/math_data.h"
+#include "mathed/math_inset.h"
+#include "mathed/math_macrotable.h"
+
+#include "support/limited_stack.h"
+
+#include "frontends/LyXView.h"
+#include "frontends/font_metrics.h"
+
#include <boost/assert.hpp>
+#include <boost/bind.hpp>
+#include <boost/current_function.hpp>
+
+#include <sstream>
+#include <limits>
+
+using lyx::pit_type;
+using std::string;
using std::vector;
using std::endl;
+#ifndef CXX_GLOBAL_CSTD
+using std::isalpha;
+#endif
+using std::min;
+using std::swap;
+
+namespace {
+
+ bool
+ positionable(DocIterator const & cursor, DocIterator const & anchor)
+ {
+ // avoid deeper nested insets when selecting
+ if (cursor.depth() > anchor.depth())
+ return false;
+
+ // anchor might be deeper, should have same path then
+ for (size_t i = 0; i < cursor.depth(); ++i)
+ if (&cursor[i].inset() != &anchor[i].inset())
+ return false;
+
+ // position should be ok.
+ return true;
+ }
+
+
+ // Find position closest to (x, y) in cell given by iter.
+ // Used only in mathed
+ DocIterator bruteFind2(LCursor const & c, int x, int y)
+ {
+ double best_dist = std::numeric_limits<double>::max();
+
+ DocIterator result;
+
+ DocIterator it = c;
+ it.top().pos() = 0;
+ DocIterator et = c;
+ et.top().pos() = et.top().asMathInset()->cell(et.top().idx()).size();
+ for (int i = 0; ; ++i) {
+ int xo;
+ int yo;
+ it.inset().cursorPos(it.top(), c.boundary(), 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[Debug::DEBUG] << "i: " << i << " d: " << d
+ << " best: " << best_dist << endl;
+ if (d <= best_dist) {
+ best_dist = d;
+ result = it;
+ }
+ if (it == et)
+ break;
+ it.forwardPos();
+ }
+ return result;
+ }
+
+
+ /// moves position closest to (x, y) in given box
+ bool bruteFind(LCursor & cursor,
+ int x, int y, int xlow, int xhigh, int ylow, int yhigh)
+ {
+ BOOST_ASSERT(!cursor.empty());
+ CursorSlice bottom = cursor[0];
+
+ DocIterator it = doc_iterator_begin(bottom.inset());
+ DocIterator const et = doc_iterator_end(bottom.inset());
+
+ double best_dist = std::numeric_limits<double>::max();;
+ DocIterator best_cursor = et;
+
+ for ( ; it != et; it.forwardPos()) {
+ // avoid invalid nesting when selecting
+ if (bv_funcs::status(&cursor.bv(), it) == bv_funcs::CUR_INSIDE
+ && (!cursor.selection() || positionable(it, cursor.anchor_))) {
+ Point p = bv_funcs::getPos(it, false);
+ int xo = p.x_;
+ int yo = p.y_;
+ if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
+ double d = (x - xo) * (x - xo) + (y - yo) * (y - yo);
+ //lyxerr << "xo: " << xo << " yo: " << yo << " d: " << d << endl;
+ // '<=' in order to take the last possible position
+ // this is important for clicking behind \sum in e.g. '\sum_i a'
+ if (d <= best_dist) {
+ //lyxerr << "*" << endl;
+ best_dist = d;
+ best_cursor = it;
+ }
+ }
+ }
+ }
+
+ //lyxerr << "best_dist: " << best_dist << " cur:\n" << best_cursor << endl;
+ if (best_cursor != et) {
+ cursor.setCursor(best_cursor);
+ return true;
+ }
+
+ return false;
+ }
+
+} // namespace anon
+
+
+// be careful: this is called from the bv's constructor, too, so
+// bv functions are not yet available!
+LCursor::LCursor(BufferView & bv)
+ : DocIterator(), bv_(&bv), anchor_(), x_target_(-1),
+ selection_(false), mark_(false), logicalpos_(false)
+{}
+
+
+void LCursor::reset(InsetBase & inset)
+{
+ clear();
+ push_back(CursorSlice(inset));
+ anchor_ = DocIterator(inset);
+ clearTargetX();
+ selection_ = false;
+ mark_ = false;
+}
+
+
+// this (intentionally) does neither touch anchor nor selection status
+void LCursor::setCursor(DocIterator const & cur)
+{
+ DocIterator::operator=(cur);
+}
+
+
+void LCursor::dispatch(FuncRequest const & cmd0)
+{
+ lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
+ << " cmd: " << cmd0 << '\n'
+ << *this << endl;
+ if (empty())
+ return;
+
+ fixIfBroken();
+ FuncRequest cmd = cmd0;
+ LCursor safe = *this;
+
+ for (; depth(); pop()) {
+ lyxerr[Debug::DEBUG] << "LCursor::dispatch: cmd: "
+ << cmd0 << endl << *this << endl;
+ BOOST_ASSERT(pos() <= lastpos());
+ BOOST_ASSERT(idx() <= lastidx());
+ BOOST_ASSERT(pit() <= lastpit());
+
+ // 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;
+ }
+ // it completely to get a 'bomb early' behaviour in case this
+ // object will be used again.
+ if (!disp_.dispatched()) {
+ lyxerr[Debug::DEBUG] << "RESTORING OLD CURSOR!" << endl;
+ operator=(safe);
+ disp_.dispatched(false);
+ }
+}
+
+
+DispatchResult LCursor::result() const
+{
+ return disp_;
+}
+
+
+BufferView & LCursor::bv() const
+{
+ BOOST_ASSERT(bv_);
+ return *bv_;
+}
+
+
+Buffer & LCursor::buffer() const
+{
+ BOOST_ASSERT(bv_);
+ BOOST_ASSERT(bv_->buffer());
+ return *bv_->buffer();
+}
+
+
+void LCursor::pop()
+{
+ BOOST_ASSERT(depth() >= 1);
+ pop_back();
+}
+
+
+void LCursor::push(InsetBase & p)
+{
+ push_back(CursorSlice(p));
+}
+
+
+void LCursor::pushLeft(InsetBase & p)
+{
+ BOOST_ASSERT(!empty());
+ //lyxerr << "Entering inset " << t << " left" << endl;
+ push(p);
+ p.idxFirst(*this);
+}
+
+
+bool LCursor::popLeft()
+{
+ BOOST_ASSERT(!empty());
+ //lyxerr << "Leaving inset to the left" << endl;
+ inset().notifyCursorLeaves(*this);
+ if (depth() == 1)
+ return false;
+ pop();
+ return true;
+}
+
+
+bool LCursor::popRight()
+{
+ BOOST_ASSERT(!empty());
+ //lyxerr << "Leaving inset to the right" << endl;
+ inset().notifyCursorLeaves(*this);
+ if (depth() == 1)
+ return false;
+ pop();
+ ++pos();
+ return true;
+}
+
+
+int LCursor::currentMode()
+{
+ BOOST_ASSERT(!empty());
+ for (int i = depth() - 1; i >= 0; --i) {
+ int res = operator[](i).inset().currentMode();
+ if (res != InsetBase::UNDECIDED_MODE)
+ return res;
+ }
+ return InsetBase::TEXT_MODE;
+}
+
+
+void LCursor::getPos(int & x, int & y) const
+{
+ Point p = bv_funcs::getPos(*this, boundary());
+ x = p.x_;
+ y = p.y_;
+}
+
+
+void LCursor::paste(string const & data)
+{
+ dispatch(FuncRequest(LFUN_PASTE, data));
+}
+
+
+void LCursor::resetAnchor()
+{
+ anchor_ = *this;
+}
+
+
+
+bool LCursor::posLeft()
+{
+ if (pos() == 0)
+ return false;
+ --pos();
+ return true;
+}
+
+
+bool LCursor::posRight()
+{
+ if (pos() == lastpos())
+ return false;
+ ++pos();
+ return true;
+}
+
+
+CursorSlice LCursor::anchor() const
+{
+ BOOST_ASSERT(anchor_.depth() >= depth());
+ CursorSlice normal = anchor_[depth() - 1];
+ if (depth() < anchor_.depth() && top() <= normal) {
+ // anchor is behind cursor -> move anchor behind the inset
+ ++normal.pos();
+ }
+ return normal;
+}
+
+
+CursorSlice LCursor::selBegin() const
+{
+ if (!selection())
+ return top();
+ return anchor() < top() ? anchor() : top();
+}
+
+
+CursorSlice LCursor::selEnd() const
+{
+ if (!selection())
+ return top();
+ return anchor() > top() ? anchor() : top();
+}
+
+
+DocIterator LCursor::selectionBegin() const
+{
+ if (!selection())
+ return *this;
+ return anchor() < top() ? anchor_ : *this;
+}
+
+
+DocIterator LCursor::selectionEnd() const
+{
+ if (!selection())
+ return *this;
+ return anchor() > top() ? anchor_ : *this;
+}
+
+
+void LCursor::setSelection()
+{
+ selection() = true;
+ // A selection with no contents is not a selection
+#ifdef WITH_WARNINGS
+#warning doesnt look ok
+#endif
+ if (pit() == anchor().pit() && pos() == anchor().pos())
+ selection() = false;
+}
+
+
+void LCursor::setSelection(DocIterator const & where, size_t n)
+{
+ setCursor(where);
+ selection() = true;
+ anchor_ = where;
+ pos() += n;
+ // Open all collapsed insets
+ for (int i = depth() - 1; i >= 0; --i)
+ operator[](i).inset().setStatus(*this, InsetBase::Open);
+}
+
+
+void LCursor::clearSelection()
+{
+ selection() = false;
+ mark() = false;
+ resetAnchor();
+ bv().unsetXSel();
+}
+
+
+int & LCursor::x_target()
+{
+ return x_target_;
+}
+
+
+int LCursor::x_target() const
+{
+ return x_target_;
+}
+
+
+void LCursor::clearTargetX()
+{
+ x_target_ = -1;
+}
+
+
+
+void LCursor::info(std::ostream & os) const
+{
+ for (int i = 1, n = depth(); i < n; ++i) {
+ operator[](i).inset().infoize(os);
+ os << " ";
+ }
+ if (pos() != 0)
+ prevInset()->infoize2(os);
+ // overwite old message
+ os << " ";
+}
+
+
+void LCursor::selHandle(bool sel)
+{
+ //lyxerr << "LCursor::selHandle" << endl;
+ if (sel == selection())
+ return;
+
+ resetAnchor();
+ selection() = sel;
+}
std::ostream & operator<<(std::ostream & os, LCursor const & cur)
{
- os << "\n";
- for (size_t i = 0, n = cur.cursor_.size(); i != n; ++i)
- os << " (" << cur.cursor_[i] << " | " << cur.anchor_[i] << "\n";
+ os << "\n cursor: | anchor:\n";
+ for (size_t i = 0, n = cur.depth(); i != n; ++i) {
+ os << " " << cur[i] << " | ";
+ if (i < cur.anchor_.depth())
+ os << cur.anchor_[i];
+ else
+ os << "-------------------------------";
+ os << "\n";
+ }
+ for (size_t i = cur.depth(), n = cur.anchor_.depth(); i < n; ++i) {
+ os << "------------------------------- | " << cur.anchor_[i] << "\n";
+ }
+ os << " selection: " << cur.selection_
+ << " x_target: " << cur.x_target_ << endl;
return os;
}
-LCursor::LCursor()
- : cursor_(1), anchor_(1), bv_(0)
-{}
-LCursor::LCursor(BufferView & bv)
- : cursor_(1), anchor_(1), bv_(&bv)
-{}
+///////////////////////////////////////////////////////////////////
+//
+// The part below is the non-integrated rest of the original math
+// cursor. This should be either generalized for texted or moved
+// back to mathed (in most cases to MathNestInset).
+//
+///////////////////////////////////////////////////////////////////
+
+#include "mathed/math_charinset.h"
+#include "mathed/math_factory.h"
+#include "mathed/math_gridinset.h"
+#include "mathed/math_macroarg.h"
+#include "mathed/math_mathmlstream.h"
+#include "mathed/math_scriptinset.h"
+#include "mathed/math_support.h"
+#include "mathed/math_unknowninset.h"
+
+//#define FILEDEBUG 1
-DispatchResult LCursor::dispatch(FuncRequest const & cmd0)
+bool LCursor::isInside(InsetBase const * p)
{
- lyxerr << "\nLCursor::dispatch: " << *this << endl;
- FuncRequest cmd = cmd0;
+ for (size_t i = 0; i != depth(); ++i)
+ if (&operator[](i).inset() == p)
+ return true;
+ return false;
+}
- for (int i = cursor_.size() - 1; i >= 1; --i) {
- CursorSlice const & citem = cursor_[i];
- lyxerr << "trying to dispatch to inset " << citem.inset_ << endl;
- DispatchResult res = citem.inset_->dispatch(*bv_, cmd);
- if (res.dispatched()) {
- lyxerr << " successfully dispatched to inset " << citem.inset_ << endl;
- return DispatchResult(true, true);
- }
- // remove one level of cursor
- switch (res.val()) {
- case FINISHED:
- pop(i);
- cmd = FuncRequest(LFUN_FINISHED_LEFT);
- break;
- case FINISHED_RIGHT:
- pop(i);
- cmd = FuncRequest(LFUN_FINISHED_RIGHT);
- break;
- case FINISHED_UP:
- pop(i);
- cmd = FuncRequest(LFUN_FINISHED_UP);
- break;
- case FINISHED_DOWN:
- pop(i);
- cmd = FuncRequest(LFUN_FINISHED_DOWN);
- break;
- default:
- lyxerr << "not handled on level " << i << " val: " << res.val() << endl;
- break;
+
+void LCursor::leaveInset(InsetBase const & inset)
+{
+ for (size_t i = 0; i != depth(); ++i) {
+ if (&operator[](i).inset() == &inset) {
+ resize(i);
+ return;
}
}
- lyxerr << "trying to dispatch to main text " << bv_->text() << endl;
- DispatchResult res = bv_->text()->dispatch(*bv_, cmd);
- lyxerr << " result: " << res.val() << endl;
+}
+
+
+bool LCursor::openable(MathAtom const & t) const
+{
+ if (!t->isActive())
+ return false;
+
+ if (t->lock())
+ return false;
+
+ if (!selection())
+ return true;
+
+ // we can't move into anything new during selection
+ if (depth() >= anchor_.depth())
+ return false;
+ if (!ptr_cmp(t.nucleus(), &anchor_[depth()].inset()))
+ return false;
+
+ return true;
+}
- if (!res.dispatched()) {
- lyxerr << "trying to dispatch to bv " << bv_ << endl;
- bool sucess = bv_->dispatch(cmd);
- lyxerr << " result: " << sucess << endl;
- res.dispatched(sucess);
- }
- return res;
+void LCursor::setScreenPos(int x, int y)
+{
+ x_target() = x;
+ bruteFind(*this, x, y, 0, bv().workWidth(), 0, bv().workHeight());
+}
+
+
+
+void LCursor::plainErase()
+{
+ cell().erase(pos());
}
-void LCursor::push(InsetBase * inset)
+void LCursor::markInsert()
{
- lyxerr << "LCursor::push() inset: " << inset << endl;
- cursor_.push_back(CursorSlice(inset));
- anchor_.push_back(CursorSlice(inset));
- updatePos();
+ insert(char(0));
}
+void LCursor::markErase()
+{
+ cell().erase(pos());
+}
+
-void LCursor::pop(int depth)
+void LCursor::plainInsert(MathAtom const & t)
{
- lyxerr << "LCursor::pop() to " << depth << endl;
- while (cursor_.size() > 1 && depth < cursor_.size()) {
- lyxerr << "LCursor::pop a level " << endl;
- cursor_.pop_back();
- anchor_.pop_back();
+ cell().insert(pos(), t);
+ ++pos();
+}
+
+
+void LCursor::insert(string const & str)
+{
+ for_each(str.begin(), str.end(),
+ boost::bind(static_cast<void(LCursor::*)(char)>
+ (&LCursor::insert), this, _1));
+}
+
+
+void LCursor::insert(char c)
+{
+ //lyxerr << "LCursor::insert char '" << c << "'" << endl;
+ BOOST_ASSERT(!empty());
+ if (inMathed()) {
+ lyx::cap::selClearOrDel(*this);
+ insert(new MathCharInset(c));
+ } else {
+ text()->insertChar(*this, c);
}
}
-void LCursor::pop()
+void LCursor::insert(MathAtom const & t)
+{
+ //lyxerr << "LCursor::insert MathAtom '" << t << "'" << endl;
+ macroModeClose();
+ lyx::cap::selClearOrDel(*this);
+ plainInsert(t);
+}
+
+
+void LCursor::insert(InsetBase * inset)
{
- lyxerr << "LCursor::pop() " << endl;
- //BOOST_ASSERT(!cursor_.empty());
- if (cursor_.size() <= 1)
- lyxerr << "### TRYING TO POP FROM EMPTY CURSOR" << endl;
- else {
- cursor_.pop_back();
- anchor_.pop_back();
+ if (inMathed())
+ insert(MathAtom(inset));
+ else
+ text()->insertInset(*this, inset);
+}
+
+
+void LCursor::niceInsert(string const & t)
+{
+ MathArray ar;
+ asArray(t, ar);
+ if (ar.size() == 1)
+ niceInsert(ar[0]);
+ else
+ insert(ar);
+}
+
+
+void LCursor::niceInsert(MathAtom const & t)
+{
+ macroModeClose();
+ string const safe = lyx::cap::grabAndEraseSelection(*this);
+ plainInsert(t);
+ // enter the new inset and move the contents of the selection if possible
+ if (t->isActive()) {
+ posLeft();
+ // be careful here: don't use 'pushLeft(t)' as this we need to
+ // push the clone, not the original
+ pushLeft(*nextInset());
+ paste(safe);
}
}
-UpdatableInset * LCursor::innerInset() const
+void LCursor::insert(MathArray const & ar)
+{
+ macroModeClose();
+ if (selection())
+ lyx::cap::eraseSelection(*this);
+ cell().insert(pos(), ar);
+ pos() += ar.size();
+}
+
+
+bool LCursor::backspace()
{
- return cursor_.size() <= 1 ? 0 : cursor_.back().asUpdatableInset();
+ autocorrect() = false;
+
+ if (selection()) {
+ lyx::cap::selDel(*this);
+ return true;
+ }
+
+ if (pos() == 0) {
+ if (inset().nargs() == 1 && depth() == 1 && lastpos() == 0)
+ return false;
+ pullArg();
+ return true;
+ }
+
+ if (inMacroMode()) {
+ MathUnknownInset * p = activeMacro();
+ if (p->name().size() > 1) {
+ p->setName(p->name().substr(0, p->name().size() - 1));
+ return true;
+ }
+ }
+
+ if (pos() != 0 && prevAtom()->nargs() > 0) {
+ // let's require two backspaces for 'big stuff' and
+ // highlight on the first
+ resetAnchor();
+ selection() = true;
+ --pos();
+ } else {
+ --pos();
+ plainErase();
+ }
+ return true;
}
-LyXText * LCursor::innerText() const
+bool LCursor::erase()
{
- if (cursor_.size() > 1) {
- // go up until first non-0 text is hit
- // (innermost text is 0 e.g. for mathed and the outer tabular level)
- for (int i = cursor_.size() - 1; i >= 1; --i)
- if (cursor_[i].text())
- return cursor_[i].text();
+ autocorrect() = false;
+ if (inMacroMode())
+ return true;
+
+ if (selection()) {
+ lyx::cap::selDel(*this);
+ return true;
+ }
+
+ // delete empty cells if possible
+ 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;
+ if (one_cell && depth() == 1 && lastpos() == 0)
+ return false;
+ // remove markup
+ if (one_cell)
+ pullArg();
+ else
+ inset().idxGlue(idx());
+ return true;
+ }
+
+ // 'clever' UI hack: only erase large items if previously slected
+ if (pos() != lastpos() && inset().nargs() > 0) {
+ resetAnchor();
+ selection() = true;
+ ++pos();
+ } else {
+ plainErase();
}
- return bv_->text();
+
+ return true;
}
-void LCursor::updatePos()
+bool LCursor::up()
{
- if (cursor_.size() > 1)
- cached_y_ = bv_->top_y() + cursor_.back().inset()->y();
+ macroModeClose();
+ DocIterator save = *this;
+ if (goUpDown(true))
+ return true;
+ setCursor(save);
+ autocorrect() = false;
+ return selection();
}
-void LCursor::getDim(int & asc, int & desc) const
+bool LCursor::down()
{
- LyXText * txt = innerText();
+ macroModeClose();
+ DocIterator save = *this;
+ if (goUpDown(false))
+ return true;
+ setCursor(save);
+ autocorrect() = false;
+ return selection();
+}
+
+
+void LCursor::macroModeClose()
+{
+ if (!inMacroMode())
+ return;
+ MathUnknownInset * p = activeMacro();
+ p->finalize();
+ string const s = p->name();
+ --pos();
+ cell().erase(pos());
+
+ // do nothing if the macro name is empty
+ if (s == "\\")
+ return;
+
+ string const name = s.substr(1);
+
+ // prevent entering of recursive macros
+ // FIXME: this is only a weak attempt... only prevents immediate
+ // recursion
+ InsetBase const * macro = innerInsetOfType(InsetBase::MATHMACRO_CODE);
+ if (macro && macro->getInsetName() == name)
+ lyxerr << "can't enter recursive macro" << endl;
+
+ plainInsert(createMathInset(name));
+}
+
+
+string LCursor::macroName()
+{
+ return inMacroMode() ? activeMacro()->name() : string();
+}
+
+
+void LCursor::handleNest(MathAtom const & a, int c)
+{
+ //lyxerr << "LCursor::handleNest: " << c << endl;
+ MathAtom t = a;
+ asArray(lyx::cap::grabAndEraseSelection(*this), t.nucleus()->cell(c));
+ insert(t);
+ posLeft();
+ pushLeft(*nextInset());
+}
+
+
+int LCursor::targetX() const
+{
+ if (x_target() != -1)
+ return x_target();
+ int x = 0;
+ int y = 0;
+ getPos(x, y);
+ return x;
+}
+
+
+void LCursor::setTargetX()
+{
+ // For now this is good enough. A better solution would be to
+ // avoid this rebreak by setting cursorX only after drawing
+ bottom().text()->redoParagraph(bottom().pit());
+ int x;
+ int y;
+ getPos(x, y);
+ x_target_ = x;
+}
+
+
+bool LCursor::inMacroMode() const
+{
+ if (pos() == 0)
+ return false;
+ MathUnknownInset const * p = prevAtom()->asUnknownInset();
+ return p && !p->final();
+}
- if (txt) {
- Row const & row = *txt->cursorRow();
- asc = row.baseline();
- desc = row.height() - asc;
+
+MathUnknownInset * LCursor::activeMacro()
+{
+ return inMacroMode() ? prevAtom().nucleus()->asUnknownInset() : 0;
+}
+
+
+void LCursor::pullArg()
+{
+#ifdef WITH_WARNINGS
+#warning Look here
+#endif
+ MathArray ar = cell();
+ if (popLeft() && inMathed()) {
+ plainErase();
+ cell().insert(pos(), ar);
+ resetAnchor();
} else {
- innerInset()->getCursorDim(asc, desc);
+ //formula()->mutateToText();
}
}
-void LCursor::getPos(int & x, int & y) const
+void LCursor::touch()
+{
+#ifdef WITH_WARNINGS
+#warning look here
+#endif
+#if 0
+ DocIterator::const_iterator it = begin();
+ DocIterator::const_iterator et = end();
+ for ( ; it != et; ++it)
+ it->cell().touch();
+#endif
+}
+
+
+void LCursor::normalize()
+{
+ if (idx() >= nargs()) {
+ lyxerr << "this should not really happen - 1: "
+ << idx() << ' ' << nargs()
+ << " in: " << &inset() << endl;
+ }
+ idx() = min(idx(), lastidx());
+
+ if (pos() > lastpos()) {
+ lyxerr << "this should not really happen - 2: "
+ << pos() << ' ' << lastpos() << " in idx: " << idx()
+ << " in atom: '";
+ WriteStream wi(lyxerr, false, true);
+ inset().asMathInset()->write(wi);
+ lyxerr << endl;
+ }
+ pos() = min(pos(), lastpos());
+}
+
+
+bool LCursor::goUpDown(bool up)
{
- if (cursor_.size() <= 1) {
- x = bv_->text()->cursorX();
- y = bv_->text()->cursorY();
-// y -= bv_->top_y();
+ // Be warned: The 'logic' implemented in this function is highly
+ // fragile. A distance of one pixel or a '<' vs '<=' _really
+ // matters. So fiddle around with it only if you think you know
+ // what you are doing!
+
+ int xo = 0;
+ int yo = 0;
+ getPos(xo, yo);
+
+ // check if we had something else in mind, if not, this is the future goal
+ if (x_target() == -1)
+ x_target() = xo;
+ else
+ xo = x_target();
+
+ // try neigbouring script insets
+ if (!selection()) {
+ // try left
+ if (pos() != 0) {
+ MathScriptInset const * p = prevAtom()->asScriptInset();
+ if (p && p->has(up)) {
+ --pos();
+ push(inset());
+ idx() = up; // the superscript has index 1
+ pos() = lastpos();
+ //lyxerr << "updown: handled by scriptinset to the left" << endl;
+ return true;
+ }
+ }
+
+ // try right
+ if (pos() != lastpos()) {
+ MathScriptInset const * p = nextAtom()->asScriptInset();
+ if (p && p->has(up)) {
+ push(inset());
+ idx() = up;
+ pos() = 0;
+ //lyxerr << "updown: handled by scriptinset to the right" << endl;
+ return true;
+ }
+ }
+ }
+
+ //xarray().boundingBox(xlow, xhigh, ylow, yhigh);
+ //if (up)
+ // yhigh = yo - 4;
+ //else
+ // ylow = yo + 4;
+ //if (bruteFind(*this, xo, yo, xlow, xhigh, ylow, yhigh)) {
+ // lyxerr << "updown: handled by brute find in the same cell" << endl;
+ // return true;
+ //}
+
+ // try to find an inset that knows better then we
+ while (true) {
+ //lyxerr << "updown: We are in " << &inset() << " idx: " << idx() << endl;
+ // ask inset first
+ if (inset().idxUpDown(*this, up)) {
+ // try to find best position within this inset
+ if (!selection())
+ setCursor(bruteFind2(*this, xo, yo));
+ return true;
+ }
+
+ // no such inset found, just take something "above"
+ //lyxerr << "updown: handled by strange case" << endl;
+ if (!popLeft()) {
+ int ylow = up ? 0 : yo + 1;
+ int yhigh = up ? yo - 1 : bv().workHeight();
+ return bruteFind(*this, xo, yo, 0, bv().workWidth(), ylow, yhigh);
+ }
+
+ // any improvement so far?
+ int xnew;
+ int ynew;
+ getPos(xnew, ynew);
+ if (up ? ynew < yo : ynew > yo)
+ return true;
+ }
+
+ // we should not come here.
+ BOOST_ASSERT(false);
+}
+
+
+void LCursor::handleFont(string const & font)
+{
+ lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << ": " << font << endl;
+ string safe;
+ if (selection()) {
+ macroModeClose();
+ safe = lyx::cap::grabAndEraseSelection(*this);
+ }
+
+ if (lastpos() != 0) {
+ // something left in the cell
+ if (pos() == 0) {
+ // cursor in first position
+ popLeft();
+ } else if (pos() == lastpos()) {
+ // cursor in last position
+ popRight();
+ } else {
+ // cursor in between. split cell
+ MathArray::iterator bt = cell().begin();
+ MathAtom at = createMathInset(font);
+ at.nucleus()->cell(0) = MathArray(bt, bt + pos());
+ cell().erase(bt, bt + pos());
+ popLeft();
+ plainInsert(at);
+ }
} else {
- // Would be nice to clean this up to make some understandable sense...
- UpdatableInset * inset = innerInset();
- // Non-obvious. The reason we have to have these
- // extra checks is that the ->getCursor() calls rely
- // on the inset's own knowledge of its screen position.
- // If we scroll up or down in a big enough increment, the
- // inset->draw() is not called: this doesn't update
- // inset.top_baseline, so getCursor() returns an old value.
- // Ugly as you like.
- if (inset) {
- inset->getCursorPos(cursor_.back().idx_, x, y);
- x += inset->x();
- y += cached_y_;
+ // nothing left in the cell
+ pullArg();
+ plainErase();
+ }
+ insert(safe);
+}
+
+
+void LCursor::message(string const & msg) const
+{
+ bv().owner()->getLyXFunc().setMessage(msg);
+}
+
+
+void LCursor::errorMessage(string const & msg) const
+{
+ bv().owner()->getLyXFunc().setErrorMessage(msg);
+}
+
+
+string LCursor::selectionAsString(bool label) const
+{
+ if (!selection())
+ return string();
+
+ if (inTexted()) {
+ Buffer const & buffer = *bv().buffer();
+ ParagraphList & pars = text()->paragraphs();
+
+ // should be const ...
+ pit_type startpit = selBegin().pit();
+ pit_type endpit = selEnd().pit();
+ size_t const startpos = selBegin().pos();
+ size_t const endpos = selEnd().pos();
+
+ if (startpit == endpit)
+ return pars[startpit].asString(buffer, startpos, endpos, label);
+
+ // First paragraph in selection
+ string result = pars[startpit].
+ asString(buffer, startpos, pars[startpit].size(), label) + "\n\n";
+
+ // The paragraphs in between (if any)
+ for (pit_type pit = startpit + 1; pit != endpit; ++pit) {
+ Paragraph & par = pars[pit];
+ result += par.asString(buffer, 0, par.size(), label) + "\n\n";
}
+
+ // Last paragraph in selection
+ result += pars[endpit].asString(buffer, 0, endpos, label);
+
+ return result;
}
+
+#ifdef WITH_WARNINGS
+#warning and mathed?
+#endif
+ return string();
}
-UpdatableInset * LCursor::innerInsetOfType(int code) const
+string LCursor::currentState()
{
- for (int i = cursor_.size() - 1; i >= 1; --i)
- if (cursor_[i].asUpdatableInset()->lyxCode() == code)
- return cursor_[i].asUpdatableInset();
- return 0;
+ if (inMathed()) {
+ std::ostringstream os;
+ info(os);
+ return os.str();
+ }
+
+ if (inTexted())
+ return text()->currentState(*this);
+
+ return string();
}
-InsetTabular * LCursor::innerInsetTabular() const
+string LCursor::getPossibleLabel()
{
- return static_cast<InsetTabular *>
- (innerInsetOfType(InsetOld::TABULAR_CODE));
+ return inMathed() ? "eq:" : text()->getPossibleLabel(*this);
}
-void LCursor::resetAnchor()
+Encoding const * LCursor::getEncoding() const
{
- anchor_ = cursor_;
+ 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 = depth() - 1; s >= 0; --s)
+ if (operator[](s).text())
+ break;
+ CursorSlice const & sl = operator[](s);
+ LyXText const & text = *sl.text();
+ LyXFont font = text.getPar(sl.pit()).getFont(
+ bv().buffer()->params(), sl.pos(), outerFont(sl.pit(), text.paragraphs()));
+ return font.language()->encoding();
}
-BufferView & LCursor::bv() const
+void LCursor::undispatched()
{
- return *bv_;
+ disp_.dispatched(false);
+}
+
+
+void LCursor::dispatched()
+{
+ disp_.dispatched(true);
+}
+
+
+void LCursor::needsUpdate()
+{
+ disp_.update(true);
+}
+
+
+void LCursor::noUpdate()
+{
+ disp_.update(false);
+}
+
+
+LyXFont LCursor::getFont() const
+{
+ // HACK. far from being perfect...
+ int s = 0;
+ // go up until first non-0 text is hit
+ // (innermost text is 0 in mathed)
+ for (s = depth() - 1; s >= 0; --s)
+ if (operator[](s).text())
+ break;
+ CursorSlice const & sl = operator[](s);
+ LyXText const & text = *sl.text();
+ LyXFont font = text.getPar(sl.pit()).getFont(
+ bv().buffer()->params(),
+ sl.pos(),
+ outerFont(sl.pit(), text.paragraphs()));
+
+ return font;
+}
+
+
+void LCursor::fixIfBroken()
+{
+ // find out last good level
+ LCursor copy = *this;
+ size_t newdepth = depth();
+ while (!copy.empty()) {
+ if (copy.idx() > copy.lastidx()) {
+ lyxerr << "wrong idx " << copy.idx()
+ << ", max is " << copy.lastidx()
+ << " at level " << copy.depth()
+ << ". Trying to correct this." << endl;
+ newdepth = copy.depth() - 1;
+ }
+ else if (copy.pit() > copy.lastpit()) {
+ lyxerr << "wrong pit " << copy.pit()
+ << ", max is " << copy.lastpit()
+ << " at level " << copy.depth()
+ << ". Trying to correct this." << endl;
+ newdepth = copy.depth() - 1;
+ }
+ else if (copy.pos() > copy.lastpos()) {
+ lyxerr << "wrong pos " << copy.pos()
+ << ", max is " << copy.lastpos()
+ << " at level " << copy.depth()
+ << ". Trying to correct this." << endl;
+ newdepth = copy.depth() - 1;
+ }
+ copy.pop();
+ }
+ // shrink cursor to a size where everything is valid, possibly
+ // leaving insets
+ while (depth() > newdepth) {
+ pop();
+ lyxerr << "correcting cursor to level " << depth() << endl;
+ }
}
projects / lyx.git / blobdiff