X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FCursor.cpp;h=e08793c393f2ed8c88c2ffb615bfbd95094189d3;hb=225c1dbe55635a97b183909ea7194b8d92051378;hp=f12f442fd89650ee314e9dda5585b60fbee2e6ce;hpb=89e7f60e1d1e9f8b20288703643c9bca820b393b;p=lyx.git

diff --git a/src/Cursor.cpp b/src/Cursor.cpp
index f12f442fd8..e08793c393 100644
--- a/src/Cursor.cpp
+++ b/src/Cursor.cpp
@@ -26,9 +26,9 @@
 #include "FuncCode.h"
 #include "FuncRequest.h"
 #include "Language.h"
-#include "LyXFunc.h" // only for setMessage()
+#include "Layout.h"
+#include "LyXAction.h"
 #include "LyXRC.h"
-#include "paragraph_funcs.h"
 #include "Paragraph.h"
 #include "ParIterator.h"
 #include "Row.h"
@@ -50,11 +50,12 @@
 #include "mathed/MathData.h"
 #include "mathed/MathMacro.h"
 
-#include <boost/bind.hpp>
+#include "support/bind.h"
 
 #include <sstream>
 #include <limits>
 #include <map>
+#include <algorithm>
 
 using namespace std;
 
@@ -153,7 +154,7 @@ bool bruteFind(Cursor & cursor,
 	else
 		++et.pit();
 
-	double best_dist = numeric_limits<double>::max();;
+	double best_dist = numeric_limits<double>::max();
 	DocIterator best_cursor = et;
 
 	for ( ; it != et; it.forwardPos(true)) {
@@ -215,8 +216,10 @@ bool bruteFind3(Cursor & cur, int x, int y, bool up)
 	for ( ; it != et; it.forwardPos()) {
 		// avoid invalid nesting when selecting
 		if (bv.cursorStatus(it) == CUR_INSIDE
-				&& (!cur.selection() || positionable(it, cur.anchor_))) {
-			Point p = bv.getPos(it, false);
+				&& (!cur.selection() || positionable(it, cur.realAnchor()))) {
+			// If this function is ever used again, check whether this
+			// is the same as "bv.getPos(it, false)" with boundary = false.
+			Point p = bv.getPos(it);
 			int xo = p.x_;
 			int yo = p.y_;
 			if (xlow <= xo && xo <= xhigh && ylow <= yo && yo <= yhigh) {
@@ -246,16 +249,6 @@ bool bruteFind3(Cursor & cur, int x, int y, bool up)
 	return true;
 }
 
-docstring parbreak(Paragraph const & par)
-{
-	odocstringstream os;
-	os << '\n';
-	// only add blank line if we're not in an ERT or Listings inset
-	if (par.ownerCode() != ERT_CODE && par.ownerCode() != LISTINGS_CODE)
-		os << '\n';
-	return os.str();
-}
-
 } // namespace anon
 
 
@@ -264,16 +257,16 @@ docstring parbreak(Paragraph const & par)
 Cursor::Cursor(BufferView & bv)
 	: DocIterator(&bv.buffer()), bv_(&bv), anchor_(),
 	  x_target_(-1), textTargetOffset_(0),
-	  selection_(false), mark_(false), logicalpos_(false),
-	  current_font(inherit_font)
+	  selection_(false), mark_(false), word_selection_(false),
+	  logicalpos_(false), current_font(inherit_font)
 {}
 
 
-void Cursor::reset(Inset & inset)
+void Cursor::reset()
 {
 	clear();
-	push_back(CursorSlice(inset));
-	anchor_ = doc_iterator_begin(&inset.buffer(), &inset);
+	push_back(CursorSlice(buffer()->inset()));
+	anchor_ = doc_iterator_begin(buffer());
 	anchor_.clear();
 	clearTargetX();
 	selection_ = false;
@@ -288,6 +281,49 @@ void Cursor::setCursor(DocIterator const & cur)
 }
 
 
+bool Cursor::getStatus(FuncRequest const & cmd, FuncStatus & status) const
+{
+	Cursor cur = *this;
+
+	// Try to fix cursor in case it is broken.
+	cur.fixIfBroken();
+
+	// Is this a function that acts on inset at point?
+	Inset * inset = cur.nextInset();
+	if (lyxaction.funcHasFlag(cmd.action(), LyXAction::AtPoint)
+	    && inset && inset->getStatus(cur, cmd, status))
+		return true;
+
+	// This is, of course, a mess. Better create a new doc iterator and use
+	// this in Inset::getStatus. This might require an additional
+	// BufferView * arg, though (which should be avoided)
+	//Cursor safe = *this;
+	bool res = false;
+	for ( ; cur.depth(); cur.pop()) {
+		//lyxerr << "\nCursor::getStatus: cmd: " << cmd << endl << *this << endl;
+		LASSERT(cur.idx() <= cur.lastidx(), /**/);
+		LASSERT(cur.pit() <= cur.lastpit(), /**/);
+		LASSERT(cur.pos() <= cur.lastpos(), /**/);
+
+		// 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 (cur.inset().getStatus(cur, cmd, status)) {
+			res = true;
+			break;
+		}
+	}
+	return res;
+}
+
+
+void Cursor::saveBeforeDispatchPosXY()
+{
+	getPos(beforeDispatchPosX_, beforeDispatchPosY_);
+}
+
+
 void Cursor::dispatch(FuncRequest const & cmd0)
 {
 	LYXERR(Debug::DEBUG, "cmd: " << cmd0 << '\n' << *this);
@@ -297,7 +333,26 @@ void Cursor::dispatch(FuncRequest const & cmd0)
 	fixIfBroken();
 	FuncRequest cmd = cmd0;
 	Cursor safe = *this;
-	
+	Cursor old = *this;
+	disp_ = DispatchResult();
+
+	buffer()->undo().beginUndoGroup();
+
+	// Is this a function that acts on inset at point?
+	if (lyxaction.funcHasFlag(cmd.action(), LyXAction::AtPoint)
+	    && nextInset()) {
+		disp_.dispatched(true);
+		disp_.screenUpdate(Update::FitCursor | Update::Force);
+		FuncRequest tmpcmd = cmd;
+		LYXERR(Debug::DEBUG, "Cursor::dispatch: (AtPoint) cmd: "
+			<< cmd0 << endl << *this);
+		nextInset()->dispatch(*this, tmpcmd);
+		if (disp_.dispatched()) {
+			buffer()->undo().endUndoGroup();
+			return;
+		}
+	}
+
 	// store some values to be used inside of the handlers
 	beforeDispatchCursor_ = *this;
 	for (; depth(); pop(), boundary(false)) {
@@ -310,7 +365,7 @@ void Cursor::dispatch(FuncRequest const & cmd0)
 		// 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(Update::FitCursor | Update::Force);
+		disp_.screenUpdate(Update::FitCursor | Update::Force);
 		disp_.dispatched(true);
 		inset().dispatch(*this, cmd);
 		if (disp_.dispatched())
@@ -331,17 +386,30 @@ void Cursor::dispatch(FuncRequest const & cmd0)
 			safe.pos() = safe.lastpos();
 		}
 		operator=(safe);
-		disp_.update(Update::None);
+		disp_.screenUpdate(Update::None);
 		disp_.dispatched(false);
 	} else {
 		// restore the previous one because nested Cursor::dispatch calls
 		// are possible which would change it
 		beforeDispatchCursor_ = safe.beforeDispatchCursor_;
 	}
+	buffer()->undo().endUndoGroup();
+
+	// notify insets we just left
+	if (*this != old) {
+		old.beginUndoGroup();
+		old.fixIfBroken();
+		bool badcursor = notifyCursorLeavesOrEnters(old, *this);
+		if (badcursor) {
+			fixIfBroken();
+			bv().fixInlineCompletionPos();
+		}
+		old.endUndoGroup();
+	}
 }
 
 
-DispatchResult Cursor::result() const
+DispatchResult const & Cursor::result() const
 {
 	return disp_;
 }
@@ -417,7 +485,7 @@ int Cursor::currentMode()
 
 void Cursor::getPos(int & x, int & y) const
 {
-	Point p = bv().getPos(*this, boundary());
+	Point p = bv().getPos(*this);
 	x = p.x_;
 	y = p.y_;
 }
@@ -440,8 +508,14 @@ void Cursor::resetAnchor()
 
 void Cursor::setCursorToAnchor()
 {
-	if (selection())
-		setCursor(anchor_);
+	if (selection()) {
+		DocIterator normal = anchor_;
+		while (depth() < normal.depth())
+			normal.pop_back();
+		if (depth() < anchor_.depth() && top() <= anchor_[depth() - 1])
+			++normal.pos();
+		setCursor(normal);
+	}
 }
 
 
@@ -924,7 +998,7 @@ void Cursor::posVisToRowExtremity(bool left)
 }
 
 
-CursorSlice Cursor::anchor() const
+CursorSlice Cursor::normalAnchor() const
 {
 	if (!selection())
 		return top();
@@ -938,11 +1012,17 @@ CursorSlice Cursor::anchor() const
 }
 
 
+DocIterator & Cursor::realAnchor()
+{
+	return anchor_;
+}
+
+
 CursorSlice Cursor::selBegin() const
 {
 	if (!selection())
 		return top();
-	return anchor() < top() ? anchor() : top();
+	return normalAnchor() < top() ? normalAnchor() : top();
 }
 
 
@@ -950,7 +1030,7 @@ CursorSlice Cursor::selEnd() const
 {
 	if (!selection())
 		return top();
-	return anchor() > top() ? anchor() : top();
+	return normalAnchor() > top() ? normalAnchor() : top();
 }
 
 
@@ -962,10 +1042,10 @@ DocIterator Cursor::selectionBegin() const
 	DocIterator di;
 	// FIXME: This is a work-around for the problem that
 	// CursorSlice doesn't keep track of the boundary.
-	if (anchor() == top())
+	if (normalAnchor() == top())
 		di = anchor_.boundary() > boundary() ? anchor_ : *this;
 	else
-		di = anchor() < top() ? anchor_ : *this;
+		di = normalAnchor() < top() ? anchor_ : *this;
 	di.resize(depth());
 	return di;
 }
@@ -979,10 +1059,10 @@ DocIterator Cursor::selectionEnd() const
 	DocIterator di;
 	// FIXME: This is a work-around for the problem that
 	// CursorSlice doesn't keep track of the boundary.
-	if (anchor() == top())
+	if (normalAnchor() == top())
 		di = anchor_.boundary() < boundary() ? anchor_ : *this;
 	else
-		di = anchor() > top() ? anchor_ : *this;
+		di = normalAnchor() > top() ? anchor_ : *this;
 
 	if (di.depth() > depth()) {
 		di.resize(depth());
@@ -997,9 +1077,9 @@ void Cursor::setSelection()
 	setSelection(true);
 	// A selection with no contents is not a selection
 	// FIXME: doesnt look ok
-	if (idx() == anchor().idx() && 
-	    pit() == anchor().pit() && 
-	    pos() == anchor().pos())
+	if (idx() == normalAnchor().idx() && 
+	    pit() == normalAnchor().pit() && 
+	    pos() == normalAnchor().pos())
 		setSelection(false);
 }
 
@@ -1016,6 +1096,7 @@ void Cursor::setSelection(DocIterator const & where, int n)
 void Cursor::clearSelection()
 {
 	setSelection(false);
+	setWordSelection(false);
 	setMark(false);
 	resetAnchor();
 }
@@ -1210,13 +1291,14 @@ void Cursor::plainInsert(MathAtom const & t)
 	++pos();
 	inset().setBuffer(bv_->buffer());
 	inset().initView();
+	forceBufferUpdate();
 }
 
 
 void Cursor::insert(docstring const & str)
 {
 	for_each(str.begin(), str.end(),
-		 boost::bind(static_cast<void(Cursor::*)(char_type)>
+		 bind(static_cast<void(Cursor::*)(char_type)>
 			     (&Cursor::insert), this, _1));
 }
 
@@ -1247,20 +1329,22 @@ void Cursor::insert(Inset * inset0)
 {
 	LASSERT(inset0, /**/);
 	if (inMathed())
-		insert(MathAtom(inset0));
+		insert(MathAtom(inset0->asInsetMath()));
 	else {
 		text()->insertInset(*this, inset0);
 		inset0->setBuffer(bv_->buffer());
 		inset0->initView();
+		if (inset0->isLabeled())
+			forceBufferUpdate();
 	}
 }
 
 
-void Cursor::niceInsert(docstring const & t, Parse::flags f)
+void Cursor::niceInsert(docstring const & t, Parse::flags f, bool enter)
 {
-	MathData ar;
+	MathData ar(buffer());
 	asArray(t, ar, f);
-	if (ar.size() == 1)
+	if (ar.size() == 1 && (enter || selection()))
 		niceInsert(ar[0]);
 	else
 		insert(ar);
@@ -1272,16 +1356,25 @@ void Cursor::niceInsert(MathAtom const & t)
 	macroModeClose();
 	docstring const safe = cap::grabAndEraseSelection(*this);
 	plainInsert(t);
-	// enter the new inset and move the contents of the selection if possible
+	// If possible, enter the new inset and move the contents of the selection
 	if (t->isActive()) {
 		posBackward();
 		// be careful here: don't use 'pushBackward(t)' as this we need to
 		// push the clone, not the original
 		pushBackward(*nextInset());
 		// We may not use niceInsert here (recursion)
-		MathData ar;
+		MathData ar(buffer());
 		asArray(safe, ar);
 		insert(ar);
+	} else if (t->asMacro() && !safe.empty()) {
+		MathData ar(buffer());
+		asArray(safe, ar);
+		docstring const name = t->asMacro()->name();
+		MacroData const * data = buffer()->getMacro(name);
+		if (data && data->numargs() - data->optionals() > 0) {
+			plainInsert(MathAtom(new InsetMathBrace(ar)));
+			posBackward();
+		}
 	}
 }
 
@@ -1293,6 +1386,8 @@ void Cursor::insert(MathData const & ar)
 		cap::eraseSelection(*this);
 	cell().insert(pos(), ar);
 	pos() += ar.size();
+	// FIXME audit setBuffer calls
+	inset().setBuffer(bv_->buffer());
 }
 
 
@@ -1430,7 +1525,7 @@ bool Cursor::macroModeClose()
 		return false;
 	InsetMathUnknown * p = activeMacro();
 	p->finalize();
-	MathData selection;
+	MathData selection(buffer());
 	asArray(p->selection(), selection);
 	docstring const s = p->name();
 	--pos();
@@ -1442,13 +1537,14 @@ bool Cursor::macroModeClose()
 
 	// trigger updates of macros, at least, if no full
 	// updates take place anyway
-	updateFlags(Update::Force);
+	screenUpdateFlags(Update::Force);
 
 	docstring const name = s.substr(1);
 	InsetMathNest * const in = inset().asInsetMath()->asNestInset();
 	if (in && in->interpretString(*this, s))
 		return true;
-	MathAtom atom = createInsetMath(name);
+	MathAtom atom = buffer()->getMacro(name, *this, false) ?
+		MathAtom(new MathMacro(buffer(), name)) : createInsetMath(name, buffer());
 
 	// try to put argument into macro, if we just inserted a macro
 	bool macroArg = false;
@@ -1474,7 +1570,7 @@ bool Cursor::macroModeClose()
 
 	// finally put the macro argument behind, if needed
 	if (macroArg) {
-		if (selection.size() > 1)
+		if (selection.size() > 1 || selection[0]->asScriptInset())
 			plainInsert(MathAtom(new InsetMathBrace(selection)));
 		else
 			insert(selection);
@@ -1607,8 +1703,8 @@ bool Cursor::upDownInMath(bool up)
 	int xo = 0;
 	int yo = 0;
 	getPos(xo, yo);
-	xo = theLyXFunc().cursorBeforeDispatchX();
-	
+	xo = beforeDispatchPosX_;
+
 	// check if we had something else in mind, if not, this is the future
 	// target
 	if (x_target_ == -1)
@@ -1657,7 +1753,7 @@ bool Cursor::upDownInMath(bool up)
 				int x;
 				int y;
 				getPos(x, y);
-				int oy = theLyXFunc().cursorBeforeDispatchY();
+				int oy = beforeDispatchPosY_;
 				if ((!up && y <= oy) ||
 						(up && y >= oy))
 					operator=(old);
@@ -1678,7 +1774,7 @@ bool Cursor::upDownInMath(bool up)
 				int x;
 				int y;
 				getPos(x, y);
-				int oy = theLyXFunc().cursorBeforeDispatchY();
+				int oy = beforeDispatchPosY_;
 				if ((!up && y <= oy) ||
 						(up && y >= oy))
 					operator=(old);
@@ -1702,7 +1798,7 @@ bool Cursor::upDownInMath(bool up)
 		//lyxerr << "updown: popBackward succeeded" << endl;
 		int xnew;
 		int ynew;
-		int yold = theLyXFunc().cursorBeforeDispatchY();
+		int yold = beforeDispatchPosY_;
 		getPos(xnew, ynew);
 		if (up ? ynew < yold : ynew > yold)
 			return true;
@@ -1744,7 +1840,7 @@ bool Cursor::upDownInText(bool up, bool & updateNeeded)
 	int xo = 0;
 	int yo = 0;
 	getPos(xo, yo);
-	xo = theLyXFunc().cursorBeforeDispatchX();
+	xo = beforeDispatchPosX_;
 
 	// update the targetX - this is here before the "return false"
 	// to set a new target which can be used by InsetTexts above
@@ -1814,13 +1910,15 @@ bool Cursor::upDownInText(bool up, bool & updateNeeded)
 
 			updateNeeded |= bv().checkDepm(dummy, *this);
 			updateTextTargetOffset();
+			if (updateNeeded)
+				forceBufferUpdate();
 		}
 		return false;
 	}
 
 	// with and without selection are handled differently
 	if (!selection()) {
-		int yo = bv().getPos(*this, boundary()).y_;
+		int yo = bv().getPos(*this).y_;
 		Cursor old = *this;
 		// To next/previous row
 		if (up)
@@ -1838,38 +1936,53 @@ bool Cursor::upDownInText(bool up, bool & updateNeeded)
 			++dummy.pos();
 		if (bv().checkDepm(dummy, old)) {
 			updateNeeded = true;
-			// Make sure that cur gets back whatever happened to dummy(Lgb) 
+			// Make sure that cur gets back whatever happened to dummy (Lgb) 
 			operator=(dummy);
 		}
 	} else {
-		// if there is a selection, we stay out of any inset, and just jump to the right position:
+		// if there is a selection, we stay out of any inset,
+		// and just jump to the right position:
 		Cursor old = *this;
+		int next_row = row;
 		if (up) {
 			if (row > 0) {
-				top().pos() = min(tm.x2pos(pit(), row - 1, xo), top().lastpos());
+				--next_row;
 			} else if (pit() > 0) {
 				--pit();
 				TextMetrics & tm = bv_->textMetrics(text());
 				if (!tm.contains(pit()))
 					tm.newParMetricsUp();
 				ParagraphMetrics const & pmcur = tm.parMetrics(pit());
-				top().pos() = min(tm.x2pos(pit(), pmcur.rows().size() - 1, xo), top().lastpos());
+				next_row = pmcur.rows().size() - 1;
 			}
 		} else {
 			if (row + 1 < int(pm.rows().size())) {
-				top().pos() = min(tm.x2pos(pit(), row + 1, xo), top().lastpos());
+				++next_row;
 			} else if (pit() + 1 < int(text()->paragraphs().size())) {
 				++pit();
 				TextMetrics & tm = bv_->textMetrics(text());
 				if (!tm.contains(pit()))
 					tm.newParMetricsDown();
-				top().pos() = min(tm.x2pos(pit(), 0, xo), top().lastpos());
+				next_row = 0;
 			}
 		}
+		top().pos() = min(tm.x2pos(pit(), next_row, xo), top().lastpos());
+
+		int const xpos = tm.x2pos(pit(), next_row, xo);
+		bool const at_end_row = xpos == tm.x2pos(pit(), next_row, tm.width());
+		bool const at_beg_row = xpos == tm.x2pos(pit(), next_row, 0);
+
+		if (at_end_row && at_beg_row)
+			// make sure the cursor ends up on this row
+			boundary(false);
+		else
+			boundary(at_end_row);
 
 		updateNeeded |= bv().checkDepm(*this, old);
 	}
 
+	if (updateNeeded)
+		forceBufferUpdate();
 	updateTextTargetOffset();
 	return true;
 }	
@@ -1897,8 +2010,8 @@ void Cursor::handleFont(string const & font)
 		} else {
 			// cursor in between. split cell
 			MathData::iterator bt = cell().begin();
-			MathAtom at = createInsetMath(from_utf8(font));
-			at.nucleus()->cell(0) = MathData(bt, bt + pos());
+			MathAtom at = createInsetMath(from_utf8(font), buffer());
+			at.nucleus()->cell(0) = MathData(buffer(), bt, bt + pos());
 			cell().erase(bt, bt + pos());
 			popBackward();
 			plainInsert(at);
@@ -1915,13 +2028,28 @@ void Cursor::handleFont(string const & font)
 
 void Cursor::message(docstring const & msg) const
 {
-	theLyXFunc().setMessage(msg);
+	disp_.setMessage(msg);
 }
 
 
 void Cursor::errorMessage(docstring const & msg) const
 {
-	theLyXFunc().setErrorMessage(msg);
+	disp_.setMessage(msg);
+	disp_.setError(true);
+}
+
+
+namespace {
+docstring parbreak(Cursor const * cur)
+{
+	odocstringstream os;
+	os << '\n';
+	// only add blank line if we're not in a ParbreakIsNewline situation
+	if (!cur->inset().getLayout().parbreakIsNewline() 
+	    && !cur->paragraph().layout().parbreak_is_newline)
+		os << '\n';
+	return os.str();
+}
 }
 
 
@@ -1930,51 +2058,47 @@ docstring Cursor::selectionAsString(bool with_label) const
 	if (!selection())
 		return docstring();
 
+	if (inMathed())
+		return cap::grabSelection(*this);
+
 	int const label = with_label
 		? AS_STR_LABEL | AS_STR_INSETS : AS_STR_INSETS;
 
-	if (inTexted()) {
-		idx_type const startidx = selBegin().idx();
-		idx_type const endidx = selEnd().idx();
-		if (startidx != endidx) {
-			// multicell selection
-			InsetTabular * table = inset().asInsetTabular();
-			LASSERT(table, return docstring());
-			return table->asString(startidx, endidx);
-		}
-		
-		ParagraphList const & pars = text()->paragraphs();
-
-		pit_type const startpit = selBegin().pit();
-		pit_type const endpit = selEnd().pit();
-		size_t const startpos = selBegin().pos();
-		size_t const endpos = selEnd().pos();
-
-		if (startpit == endpit)
-			return pars[startpit].asString(startpos, endpos, label);
-
-		// First paragraph in selection
-		docstring result = pars[startpit].
-			asString(startpos, pars[startpit].size(), label)
-				 + parbreak(pars[startpit]);
-
-		// The paragraphs in between (if any)
-		for (pit_type pit = startpit + 1; pit != endpit; ++pit) {
-			Paragraph const & par = pars[pit];
-			result += par.asString(0, par.size(), label)
-				  + parbreak(pars[pit]);
-		}
+	idx_type const startidx = selBegin().idx();
+	idx_type const endidx = selEnd().idx();
+	if (startidx != endidx) {
+		// multicell selection
+		InsetTabular * table = inset().asInsetTabular();
+		LASSERT(table, return docstring());
+		return table->asString(startidx, endidx);
+	}
 
-		// Last paragraph in selection
-		result += pars[endpit].asString(0, endpos, label);
+	ParagraphList const & pars = text()->paragraphs();
 
-		return result;
+	pit_type const startpit = selBegin().pit();
+	pit_type const endpit = selEnd().pit();
+	size_t const startpos = selBegin().pos();
+	size_t const endpos = selEnd().pos();
+
+	if (startpit == endpit)
+		return pars[startpit].asString(startpos, endpos, label);
+
+	// First paragraph in selection
+	docstring result = pars[startpit].
+		asString(startpos, pars[startpit].size(), label)
+		+ parbreak(this);
+
+	// The paragraphs in between (if any)
+	for (pit_type pit = startpit + 1; pit != endpit; ++pit) {
+		Paragraph const & par = pars[pit];
+		result += par.asString(0, par.size(), label)
+			+ parbreak(this);
 	}
 
-	if (inMathed())
-		return cap::grabSelection(*this);
+	// Last paragraph in selection
+	result += pars[endpit].asString(0, endpos, label);
 
-	return docstring();
+	return result;
 }
 
 
@@ -2006,7 +2130,7 @@ Encoding const * Cursor::getEncoding() const
 	CursorSlice const & sl = innerTextSlice();
 	Text const & text = *sl.text();
 	Font font = text.getPar(sl.pit()).getFont(
-		bv().buffer().params(), sl.pos(), outerFont(sl.pit(), text.paragraphs()));
+		bv().buffer().params(), sl.pos(), text.outerFont(sl.pit()));
 	return font.language()->encoding();
 }
 
@@ -2023,15 +2147,33 @@ void Cursor::dispatched()
 }
 
 
-void Cursor::updateFlags(Update::flags f)
+void Cursor::screenUpdateFlags(Update::flags f)
+{
+	disp_.screenUpdate(f);
+}
+
+
+void Cursor::forceBufferUpdate()
 {
-	disp_.update(f);
+	disp_.forceBufferUpdate();
 }
 
 
-void Cursor::noUpdate()
+void Cursor::clearBufferUpdate()
 {
-	disp_.update(Update::None);
+	disp_.clearBufferUpdate();
+}
+
+
+bool Cursor::needBufferUpdate() const
+{
+	return disp_.needBufferUpdate();
+}
+
+
+void Cursor::noScreenUpdate()
+{
+	disp_.screenUpdate(Update::None);
 }
 
 
@@ -2063,7 +2205,7 @@ Font Cursor::getFont() const
 	
 	// get font at the position
 	Font font = par.getFont(buffer()->params(), pos,
-		outerFont(sl.pit(), text.paragraphs()));
+		text.outerFont(sl.pit()));
 
 	return font;
 }
@@ -2071,9 +2213,12 @@ Font Cursor::getFont() const
 
 bool Cursor::fixIfBroken()
 {
-	if (DocIterator::fixIfBroken()) {
-			clearSelection();
-			return true;
+	bool const broken_cursor = DocIterator::fixIfBroken();
+	bool const broken_anchor = anchor_.fixIfBroken();
+	
+	if (broken_cursor || broken_anchor) {
+		clearSelection();
+		return true;
 	}
 	return false;
 }
@@ -2099,9 +2244,9 @@ bool notifyCursorLeavesOrEnters(Cursor const & old, Cursor & cur)
 	// notify everything on top of the common part in old cursor,
 	// but stop if the inset claims the cursor to be invalid now
 	for (size_type j = i; j < old.depth(); ++j) {
-		Cursor insetPos = old;
-		insetPos.cutOff(j);
-		if (old[j].inset().notifyCursorLeaves(insetPos, cur))
+		Cursor inset_pos = old;
+		inset_pos.cutOff(j);
+		if (old[j].inset().notifyCursorLeaves(inset_pos, cur))
 			return true;
 	}
 
@@ -2226,9 +2371,9 @@ void Cursor::recordUndo(UndoKind kind) const
 }
 
 
-void Cursor::recordUndoInset(UndoKind kind) const
+void Cursor::recordUndoInset(UndoKind kind, Inset const * inset) const
 {
-	buffer()->undo().recordUndoInset(*this, kind);
+	buffer()->undo().recordUndoInset(*this, kind, inset);
 }