]> git.lyx.org Git - lyx.git/blobdiff - src/text.C
ws fixes
[lyx.git] / src / text.C
index 44f7e249b18d0ac090d1c0ed014b2a8f58810811..9a668d4bfc28e2c7a60e356628d520eba8b619b5 100644 (file)
 
 #include "lyxtext.h"
 
+#include "author.h"
 #include "buffer.h"
 #include "bufferparams.h"
 #include "BufferView.h"
+#include "cursor.h"
 #include "debug.h"
+#include "dispatchresult.h"
 #include "encoding.h"
 #include "funcrequest.h"
 #include "gettext.h"
 #include "language.h"
 #include "LColor.h"
 #include "lyxlength.h"
+#include "lyxlex.h"
 #include "lyxrc.h"
 #include "lyxrow.h"
 #include "lyxrow_funcs.h"
+#include "metricsinfo.h"
 #include "paragraph.h"
 #include "paragraph_funcs.h"
 #include "ParagraphParameters.h"
 #include "rowpainter.h"
-#include "text_funcs.h"
-#include "undo_funcs.h"
+#include "undo.h"
 #include "vspace.h"
 #include "WordLangTuple.h"
 
 
 #include "support/lstrings.h"
 #include "support/textutils.h"
-
-using bv_funcs::number;
+#include "support/tostr.h"
+#include "support/std_sstream.h"
 
 using lyx::pos_type;
 using lyx::word_location;
 
+using lyx::support::bformat;
 using lyx::support::contains;
 using lyx::support::lowercase;
+using lyx::support::split;
 using lyx::support::uppercase;
 
+using std::advance;
+using std::distance;
 using std::max;
+using std::min;
 using std::endl;
 using std::string;
 
 
-/// top, right, bottom pixel margin
-extern int const PAPER_MARGIN = 20;
+/// some space for drawing the 'nested' markers (in pixel)
+extern int const NEST_MARGIN = 20;
 /// margin for changebar
 extern int const CHANGEBAR_MARGIN = 10;
-/// left margin
-extern int const LEFT_MARGIN = PAPER_MARGIN + CHANGEBAR_MARGIN;
+/// right margin
+extern int const RIGHT_MARGIN = 10;
 
 
+namespace {
 
-int bibitemMaxWidth(BufferView *, LyXFont const &);
+int numberOfSeparators(Paragraph const & par, Row const & row)
+{
+       pos_type const first = max(row.pos(), par.beginOfBody());
+       pos_type const last = row.endpos() - 1;
+       int n = 0;
+       for (pos_type p = first; p < last; ++p) {
+               if (par.isSeparator(p))
+                       ++n;
+       }
+       return n;
+}
 
 
-BufferView * LyXText::bv()
+unsigned int maxParagraphWidth(ParagraphList const & plist)
 {
-       BOOST_ASSERT(bv_owner != 0);
-       return bv_owner;
+       unsigned int width = 0;
+       ParagraphList::const_iterator pit = plist.begin();
+       ParagraphList::const_iterator end = plist.end();
+               for (; pit != end; ++pit)
+                       width = std::max(width, pit->width);
+       return width;
 }
 
 
-BufferView * LyXText::bv() const
+int numberOfLabelHfills(Paragraph const & par, Row const & row)
 {
-       BOOST_ASSERT(bv_owner != 0);
-       return bv_owner;
+       pos_type last = row.endpos() - 1;
+       pos_type first = row.pos();
+
+       // hfill *DO* count at the beginning of paragraphs!
+       if (first) {
+               while (first < last && par.isHfill(first))
+                       ++first;
+       }
+
+       last = min(last, par.beginOfBody());
+       int n = 0;
+       for (pos_type p = first; p < last; ++p) {
+               if (par.isHfill(p))
+                       ++n;
+       }
+       return n;
 }
 
 
-void LyXText::updateRowPositions()
+int numberOfHfills(Paragraph const & par, Row const & row)
 {
-       ParagraphList::iterator pit = ownerParagraphs().begin();
-       ParagraphList::iterator end = ownerParagraphs().end();
-       for (height = 0; pit != end; ++pit) {
-               RowList::iterator rit = pit->rows.begin();
-               RowList::iterator rend = pit->rows.end();
-               for ( ; rit != rend ; ++rit) {
-                       rit->y(height);
-                       height += rit->height();
-               }
+       pos_type const last = row.endpos() - 1;
+       pos_type first = row.pos();
+
+       // hfill *DO* count at the beginning of paragraphs!
+       if (first) {
+               while (first < last && par.isHfill(first))
+                       ++first;
        }
+
+       first = max(first, par.beginOfBody());
+
+       int n = 0;
+       for (pos_type p = first; p < last; ++p) {
+               if (par.isHfill(p))
+                       ++n;
+       }
+       return n;
 }
 
+} // namespace anon
+
 
-int LyXText::workWidth() const
+BufferView * LyXText::bv()
 {
-       return inset_owner ? inset_owner->textWidth() : bv()->workWidth();
+       BOOST_ASSERT(bv_owner != 0);
+       return bv_owner;
 }
 
 
-int LyXText::getRealCursorX() const
+double LyXText::spacing(Paragraph const & par) const
 {
-       int x = cursor.x();
-       if (the_locking_inset && (the_locking_inset->getLyXText(bv())!= this))
-               x = the_locking_inset->getLyXText(bv())->getRealCursorX();
-       return x;
+       if (par.params().spacing().isDefault())
+               return bv()->buffer()->params().spacing().getValue();
+       return par.params().spacing().getValue();
 }
 
 
-#warning FIXME  This function seems to belong outside of LyxText.
-unsigned char LyXText::transformChar(unsigned char c, Paragraph const & par,
-                                    pos_type pos) const
+BufferView * LyXText::bv() const
 {
-       if (!Encodings::is_arabic(c))
-               if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && IsDigit(c))
-                       return c + (0xb0 - '0');
-               else
-                       return c;
-
-       unsigned char const prev_char = pos > 0 ? par.getChar(pos - 1) : ' ';
-       unsigned char next_char = ' ';
+       BOOST_ASSERT(bv_owner != 0);
+       return bv_owner;
+}
 
-       pos_type const par_size = par.size();
 
-       for (pos_type i = pos + 1; i < par_size; ++i) {
-               unsigned char const par_char = par.getChar(i);
-               if (!Encodings::IsComposeChar_arabic(par_char)) {
-                       next_char = par_char;
-                       break;
-               }
+void LyXText::updateParPositions()
+{
+       ParagraphList::iterator pit = paragraphs().begin();
+       ParagraphList::iterator end = paragraphs().end();
+       for (height = 0; pit != end; ++pit) {
+               pit->y = height;
+               height += pit->height;
        }
+}
 
-       if (Encodings::is_arabic(next_char)) {
-               if (Encodings::is_arabic(prev_char) &&
-                       !Encodings::is_arabic_special(prev_char))
-                       return Encodings::TransformChar(c, Encodings::FORM_MEDIAL);
-               else
-                       return Encodings::TransformChar(c, Encodings::FORM_INITIAL);
-       } else {
-               if (Encodings::is_arabic(prev_char) &&
-                       !Encodings::is_arabic_special(prev_char))
-                       return Encodings::TransformChar(c, Encodings::FORM_FINAL);
-               else
-                       return Encodings::TransformChar(c, Encodings::FORM_ISOLATED);
-       }
+
+int LyXText::textWidth() const
+{
+       return textwidth_;
 }
 
-// This is the comments that some of the warnings below refers to.
-// There are some issues in this file and I don't think they are
-// really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
-// this is a problem that has been here almost from day one and that a
-// larger userbase with differenct access patters triggers the bad
-// behaviour. (segfaults.) What I think happen is: In several places
-// we store the paragraph in the current cursor and then moves the
-// cursor. This movement of the cursor will delete paragraph at the
-// old position if it is now empty. This will make the temporary
-// pointer to the old cursor paragraph invalid and dangerous to use.
-// And is some cases this will trigger a segfault. I have marked some
-// of the cases where this happens with a warning, but I am sure there
-// are others in this file and in text2.C. There is also a note in
-// Delete() that you should read. In Delete I store the paragraph->id
-// instead of a pointer to the paragraph. I am pretty sure this faulty
-// use of temporary pointers to paragraphs that might have gotten
-// invalidated (through a cursor movement) before they are used, are
-// the cause of the strange crashes we get reported often.
-//
-// It is very tiresom to change this code, especially when it is as
-// hard to read as it is. Help to fix all the cases where this is done
-// would be greately appreciated.
-//
-// Lgb
 
 int LyXText::singleWidth(ParagraphList::iterator pit, pos_type pos) const
 {
@@ -187,8 +195,7 @@ int LyXText::singleWidth(ParagraphList::iterator pit, pos_type pos) const
                return 0;
 
        char const c = pit->getChar(pos);
-       LyXFont const & font = getFont(pit, pos);
-       return singleWidth(pit, pos, c, font);
+       return singleWidth(pit, pos, c, getFont(pit, pos));
 }
 
 
@@ -201,17 +208,16 @@ int LyXText::singleWidth(ParagraphList::iterator pit,
                return 0;
        }
 
-
        // The most common case is handled first (Asger)
        if (IsPrintable(c)) {
-               if (font.language()->RightToLeft()) {
+               if (!font.language()->RightToLeft()) {
                        if ((lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
                             lyxrc.font_norm_type == LyXRC::ISO_10646_1)
                            && font.language()->lang() == "arabic") {
                                if (Encodings::IsComposeChar_arabic(c))
                                        return 0;
                                else
-                                       c = transformChar(c, *pit, pos);
+                                       c = pit->transformChar(c, pos);
                        } else if (font.language()->lang() == "hebrew" &&
                                 Encodings::IsComposeChar_hebrew(c))
                                return 0;
@@ -219,15 +225,8 @@ int LyXText::singleWidth(ParagraphList::iterator pit,
                return font_metrics::width(c, font);
        }
 
-       if (c == Paragraph::META_INSET) {
-               InsetOld * tmpinset = pit->getInset(pos);
-               BOOST_ASSERT(tmpinset);
-               if (tmpinset->lyxCode() == InsetOld::HFILL_CODE) {
-                       // Because of the representation as vertical lines
-                       return 3;
-               }
-               return tmpinset->width();
-       }
+       if (c == Paragraph::META_INSET)
+               return pit->getInset(pos)->width();
 
        if (IsSeparatorChar(c))
                c = ' ';
@@ -235,204 +234,13 @@ int LyXText::singleWidth(ParagraphList::iterator pit,
 }
 
 
-lyx::pos_type LyXText::log2vis(lyx::pos_type pos) const
-{
-       if (bidi_start == -1)
-               return pos;
-       else
-               return log2vis_list[pos - bidi_start];
-}
-
-
-lyx::pos_type LyXText::vis2log(lyx::pos_type pos) const
-{
-       if (bidi_start == -1)
-               return pos;
-       else
-               return vis2log_list[pos - bidi_start];
-}
-
-
-lyx::pos_type LyXText::bidi_level(lyx::pos_type pos) const
-{
-       if (bidi_start == -1)
-               return 0;
-       else
-               return bidi_levels[pos - bidi_start];
-}
-
-
-bool LyXText::bidi_InRange(lyx::pos_type pos) const
-{
-       return bidi_start == -1 ||
-               (bidi_start <= pos && pos <= bidi_end);
-}
-
-
-void LyXText::computeBidiTables(ParagraphList::iterator pit,
-   Buffer const & buf, RowList::iterator row) const
-{
-       bidi_same_direction = true;
-       if (!lyxrc.rtl_support) {
-               bidi_start = -1;
-               return;
-       }
-
-       InsetOld * inset = pit->inInset();
-       if (inset && inset->owner() &&
-           inset->owner()->lyxCode() == InsetOld::ERT_CODE) {
-               bidi_start = -1;
-               return;
-       }
-
-       bidi_start = row->pos();
-       bidi_end = lastPos(*pit, row);
-
-       if (bidi_start > bidi_end) {
-               bidi_start = -1;
-               return;
-       }
-
-       if (bidi_end + 2 - bidi_start >
-           static_cast<pos_type>(log2vis_list.size())) {
-               pos_type new_size =
-                       (bidi_end + 2 - bidi_start < 500) ?
-                       500 : 2 * (bidi_end + 2 - bidi_start);
-               log2vis_list.resize(new_size);
-               vis2log_list.resize(new_size);
-               bidi_levels.resize(new_size);
-       }
-
-       vis2log_list[bidi_end + 1 - bidi_start] = -1;
-       log2vis_list[bidi_end + 1 - bidi_start] = -1;
-
-       BufferParams const & bufparams = buf.params();
-       pos_type stack[2];
-       bool const rtl_par =
-               pit->isRightToLeftPar(bufparams);
-       int level = 0;
-       bool rtl = false;
-       bool rtl0 = false;
-       pos_type const body_pos = pit->beginningOfBody();
-
-       for (pos_type lpos = bidi_start; lpos <= bidi_end; ++lpos) {
-               bool is_space = pit->isLineSeparator(lpos);
-               pos_type const pos =
-                       (is_space && lpos + 1 <= bidi_end &&
-                        !pit->isLineSeparator(lpos + 1) &&
-                        !pit->isNewline(lpos + 1))
-                       ? lpos + 1 : lpos;
-               LyXFont font = pit->getFontSettings(bufparams, pos);
-               if (pos != lpos && 0 < lpos && rtl0 && font.isRightToLeft() &&
-                   font.number() == LyXFont::ON &&
-                   pit->getFontSettings(bufparams, lpos - 1).number()
-                   == LyXFont::ON) {
-                       font = pit->getFontSettings(bufparams, lpos);
-                       is_space = false;
-               }
-
-
-               bool new_rtl = font.isVisibleRightToLeft();
-               bool new_rtl0 = font.isRightToLeft();
-               int new_level;
-
-               if (lpos == body_pos - 1
-                   && row->pos() < body_pos - 1
-                   && is_space) {
-                       new_level = (rtl_par) ? 1 : 0;
-                       new_rtl = new_rtl0 = rtl_par;
-               } else if (new_rtl0)
-                       new_level = (new_rtl) ? 1 : 2;
-               else
-                       new_level = (rtl_par) ? 2 : 0;
-
-               if (is_space && new_level >= level) {
-                       new_level = level;
-                       new_rtl = rtl;
-                       new_rtl0 = rtl0;
-               }
-
-               int new_level2 = new_level;
-
-               if (level == new_level && rtl0 != new_rtl0) {
-                       --new_level2;
-                       log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
-               } else if (level < new_level) {
-                       log2vis_list[lpos - bidi_start] =  (rtl) ? -1 : 1;
-                       if (new_level > rtl_par)
-                               bidi_same_direction = false;
-               } else
-                       log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
-               rtl = new_rtl;
-               rtl0 = new_rtl0;
-               bidi_levels[lpos - bidi_start] = new_level;
-
-               while (level > new_level2) {
-                       pos_type old_lpos = stack[--level];
-                       int delta = lpos - old_lpos - 1;
-                       if (level % 2)
-                               delta = -delta;
-                       log2vis_list[lpos - bidi_start] += delta;
-                       log2vis_list[old_lpos - bidi_start] += delta;
-               }
-               while (level < new_level)
-                       stack[level++] = lpos;
-       }
-
-       while (level > 0) {
-               pos_type const old_lpos = stack[--level];
-               int delta = bidi_end - old_lpos;
-               if (level % 2)
-                       delta = -delta;
-               log2vis_list[old_lpos - bidi_start] += delta;
-       }
-
-       pos_type vpos = bidi_start - 1;
-       for (pos_type lpos = bidi_start;
-            lpos <= bidi_end; ++lpos) {
-               vpos += log2vis_list[lpos - bidi_start];
-               vis2log_list[vpos - bidi_start] = lpos;
-               log2vis_list[lpos - bidi_start] = vpos;
-       }
-}
-
-
-// This method requires a previous call to ComputeBidiTables()
-bool LyXText::isBoundary(Buffer const & buf, Paragraph const & par,
-                        pos_type pos) const
-{
-       if (!lyxrc.rtl_support || pos == 0)
-               return false;
-
-       if (!bidi_InRange(pos - 1)) {
-               /// This can happen if pos is the first char of a row.
-               /// Returning false in this case is incorrect!
-               return false;
-       }
-
-       bool const rtl = bidi_level(pos - 1) % 2;
-       bool const rtl2 = bidi_InRange(pos)
-               ? bidi_level(pos) % 2
-               : par.isRightToLeftPar(buf.params());
-       return rtl != rtl2;
-}
-
-
-bool LyXText::isBoundary(Buffer const & buf, Paragraph const & par,
-                        pos_type pos, LyXFont const & font) const
+int LyXText::leftMargin(ParagraphList::iterator pit) const
 {
-       if (!lyxrc.rtl_support)
-               return false;    // This is just for speedup
-
-       bool const rtl = font.isVisibleRightToLeft();
-       bool const rtl2 = bidi_InRange(pos)
-               ? bidi_level(pos) % 2
-               : par.isRightToLeftPar(buf.params());
-       return rtl != rtl2;
+       return leftMargin(pit, pit->size());
 }
 
 
-int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
+int LyXText::leftMargin(ParagraphList::iterator pit, pos_type pos) const
 {
        LyXTextClass const & tclass =
                bv()->buffer()->params().getLyXTextClass();
@@ -440,57 +248,50 @@ int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
 
        string parindent = layout->parindent;
 
-       int x = LEFT_MARGIN;
+       int x = NEST_MARGIN + CHANGEBAR_MARGIN;
 
        x += font_metrics::signedWidth(tclass.leftmargin(), tclass.defaultfont());
 
-       // this is the way, LyX handles the LaTeX-Environments.
+       // This is the way LyX handles LaTeX-Environments.
        // I have had this idea very late, so it seems to be a
        // later added hack and this is true
-       if (!pit->getDepth()) {
+       if (pit->getDepth() == 0) {
                if (pit->layout() == tclass.defaultLayout()) {
                        // find the previous same level paragraph
-                       if (pit != ownerParagraphs().begin()) {
+                       if (pit != paragraphs().begin()) {
                                ParagraphList::iterator newpit =
-                                       depthHook(pit, ownerParagraphs(),
-                                                 pit->getDepth());
-                               if (newpit == pit &&
-                                   newpit->layout()->nextnoindent)
+                                       depthHook(pit, paragraphs(), pit->getDepth());
+                               if (newpit == pit && newpit->layout()->nextnoindent)
                                        parindent.erase();
                        }
                }
        } else {
                // find the next level paragraph
-
-               ParagraphList::iterator newpar = outerHook(pit,
-                                                          ownerParagraphs());
-
-               // make a corresponding row. Needed to call leftMargin()
-
-               // check wether it is a sufficent paragraph
-               if (newpar != ownerParagraphs().end() &&
-                   newpar->layout()->isEnvironment()) {
-                       x = leftMargin(newpar, Row(newpar->size()));
+               ParagraphList::iterator newpar =
+                       outerHook(pit, paragraphs());
+
+               // Make a corresponding row. Need to call leftMargin()
+               // to check whether it is a sufficent paragraph.
+               if (newpar != paragraphs().end()
+                   && newpar->layout()->isEnvironment()) {
+                       x = leftMargin(newpar);
                }
 
-               if (newpar != ownerParagraphs().end() &&
-                   pit->layout() == tclass.defaultLayout()) {
+               if (newpar != paragraphs().end()
+                   && pit->layout() == tclass.defaultLayout()) {
                        if (newpar->params().noindent())
                                parindent.erase();
-                       else {
+                       else
                                parindent = newpar->layout()->parindent;
-                       }
-
                }
        }
 
        LyXFont const labelfont = getLabelFont(pit);
        switch (layout->margintype) {
        case MARGIN_DYNAMIC:
-               if (!layout->leftmargin.empty()) {
+               if (!layout->leftmargin.empty())
                        x += font_metrics::signedWidth(layout->leftmargin,
                                                  tclass.defaultfont());
-               }
                if (!pit->getLabelstring().empty()) {
                        x += font_metrics::signedWidth(layout->labelindent,
                                                  labelfont);
@@ -499,10 +300,11 @@ int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
                        x += font_metrics::width(layout->labelsep, labelfont);
                }
                break;
+
        case MARGIN_MANUAL:
                x += font_metrics::signedWidth(layout->labelindent, labelfont);
                // The width of an empty par, even with manual label, should be 0
-               if (!pit->empty() && row.pos() >= pit->beginningOfBody()) {
+               if (!pit->empty() && pos >= pit->beginOfBody()) {
                        if (!pit->getLabelWidthString().empty()) {
                                x += font_metrics::width(pit->getLabelWidthString(),
                                               labelfont);
@@ -510,25 +312,27 @@ int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
                        }
                }
                break;
+
        case MARGIN_STATIC:
                x += font_metrics::signedWidth(layout->leftmargin, tclass.defaultfont()) * 4
                        / (pit->getDepth() + 4);
                break;
+
        case MARGIN_FIRST_DYNAMIC:
                if (layout->labeltype == LABEL_MANUAL) {
-                       if (row.pos() >= pit->beginningOfBody()) {
+                       if (pos >= pit->beginOfBody()) {
                                x += font_metrics::signedWidth(layout->leftmargin,
                                                          labelfont);
                        } else {
                                x += font_metrics::signedWidth(layout->labelindent,
                                                          labelfont);
                        }
-               } else if (row.pos()
+               } else if (pos != 0
                           // Special case to fix problems with
                           // theorems (JMarc)
                           || (layout->labeltype == LABEL_STATIC
                               && layout->latextype == LATEX_ENVIRONMENT
-                              && !isFirstInSequence(pit, ownerParagraphs()))) {
+                              && !isFirstInSequence(pit, paragraphs()))) {
                        x += font_metrics::signedWidth(layout->leftmargin,
                                                  labelfont);
                } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
@@ -543,33 +347,29 @@ int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
                }
                break;
 
-       case MARGIN_RIGHT_ADDRESS_BOX:
-       {
+       case MARGIN_RIGHT_ADDRESS_BOX: {
+#if 0
                // ok, a terrible hack. The left margin depends on the widest
-               // row in this paragraph. Do not care about footnotes, they
-               // are *NOT* allowed in the LaTeX realisation of this layout.
-
-               // find the first row of this paragraph
+               // row in this paragraph.
                RowList::iterator rit = pit->rows.begin();
                RowList::iterator end = pit->rows.end();
-               int minfill = rit->fill();
+#warning This is wrong.
+               int minfill = textwidth_;
                for ( ; rit != end; ++rit)
                        if (rit->fill() < minfill)
                                minfill = rit->fill();
-
                x += font_metrics::signedWidth(layout->leftmargin,
                        tclass.defaultfont());
                x += minfill;
+#endif
+               // also wrong, but much shorter.
+               x += textwidth_ / 2;
+               break;
        }
-       break;
        }
 
-       if (workWidth() > 0 && !pit->params().leftIndent().zero()) {
-               LyXLength const len = pit->params().leftIndent();
-               int const tw = inset_owner ?
-                       inset_owner->latexTextWidth(bv()) : workWidth();
-               x += len.inPixels(tw);
-       }
+       if (!pit->params().leftIndent().zero())
+               x += pit->params().leftIndent().inPixels(textWidth());
 
        LyXAlignment align;
 
@@ -579,61 +379,52 @@ int LyXText::leftMargin(ParagraphList::iterator pit, Row const & row) const
                align = pit->params().align();
 
        // set the correct parindent
-       if (row.pos() == 0) {
-               if ((layout->labeltype == LABEL_NO_LABEL
-                    || layout->labeltype == LABEL_TOP_ENVIRONMENT
-                    || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
-                    || (layout->labeltype == LABEL_STATIC
-                        && layout->latextype == LATEX_ENVIRONMENT
-                        && !isFirstInSequence(pit, ownerParagraphs())))
-                   && align == LYX_ALIGN_BLOCK
-                   && !pit->params().noindent()
-                       // in tabulars and ert paragraphs are never indented!
-                       && (!pit->inInset() || !pit->inInset()->owner() ||
-                               (pit->inInset()->owner()->lyxCode() != InsetOld::TABULAR_CODE &&
-                                pit->inInset()->owner()->lyxCode() != InsetOld::ERT_CODE))
-                   && (pit->layout() != tclass.defaultLayout() ||
-                       bv()->buffer()->params().paragraph_separation ==
-                       BufferParams::PARSEP_INDENT)) {
-                       x += font_metrics::signedWidth(parindent,
-                                                 tclass.defaultfont());
-               } else if (layout->labeltype == LABEL_BIBLIO) {
-                       // ale970405 Right width for bibitems
-                       x += bibitemMaxWidth(bv(), tclass.defaultfont());
-               }
+       if (pos == 0
+           && (layout->labeltype == LABEL_NO_LABEL
+              || layout->labeltype == LABEL_TOP_ENVIRONMENT
+              || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
+              || (layout->labeltype == LABEL_STATIC
+                  && layout->latextype == LATEX_ENVIRONMENT
+                  && !isFirstInSequence(pit, paragraphs())))
+           && align == LYX_ALIGN_BLOCK
+           && !pit->params().noindent()
+           // in tabulars and ert paragraphs are never indented!
+           && (!pit->inInset()
+               || !pit->inInset()->owner()
+               || (pit->inInset()->owner()->lyxCode() != InsetOld::TABULAR_CODE
+                   && pit->inInset()->owner()->lyxCode() != InsetOld::ERT_CODE))
+           && (pit->layout() != tclass.defaultLayout()
+               || bv()->buffer()->params().paragraph_separation ==
+                  BufferParams::PARSEP_INDENT))
+       {
+               x += font_metrics::signedWidth(parindent, tclass.defaultfont());
        }
 
        return x;
 }
 
 
-int LyXText::rightMargin(ParagraphList::iterator pit,
-       Buffer const & buf, Row const &) const
+int LyXText::rightMargin(Paragraph const & par) const
 {
-       LyXTextClass const & tclass = buf.params().getLyXTextClass();
-       LyXLayout_ptr const & layout = pit->layout();
+       LyXTextClass const & tclass = bv()->buffer()->params().getLyXTextClass();
 
-       return PAPER_MARGIN
+       return
+               RIGHT_MARGIN
                + font_metrics::signedWidth(tclass.rightmargin(),
-                                      tclass.defaultfont());
-               + font_metrics::signedWidth(layout->rightmargin,
                                       tclass.defaultfont())
-               * 4 / (pit->getDepth() + 4);
+               + font_metrics::signedWidth(par.layout()->rightmargin,
+                                      tclass.defaultfont())
+               * 4 / (par.getDepth() + 4);
 }
 
 
-int LyXText::labelEnd(ParagraphList::iterator pit, Row const & row) const
+int LyXText::labelEnd(ParagraphList::iterator pit) const
 {
-       if (pit->layout()->margintype == MARGIN_MANUAL) {
-               Row tmprow = row;
-               tmprow.pos(pit->size());
-               // return the beginning of the body
-               return leftMargin(pit, tmprow);
-       }
-
-       // LabelEnd is only needed if the layout
-       // fills a flushleft label.
-       return 0;
+       // labelEnd is only needed if the layout fills a flushleft label.
+       if (pit->layout()->margintype != MARGIN_MANUAL)
+               return 0;
+       // return the beginning of the body
+       return leftMargin(pit);
 }
 
 
@@ -642,171 +433,164 @@ namespace {
 // this needs special handling - only newlines count as a break point
 pos_type addressBreakPoint(pos_type i, Paragraph const & par)
 {
-       for (; i < par.size(); ++i) {
+       pos_type const end = par.size();
+
+       for (; i < end; ++i)
                if (par.isNewline(i))
-                       return i;
-       }
+                       return i + 1;
 
-       return par.size();
+       return end;
 }
 
 };
 
 
-pos_type LyXText::rowBreakPoint(ParagraphList::iterator pit,
-       Row const & row) const
+void LyXText::rowBreakPoint(ParagraphList::iterator pit, Row & row) const
 {
-       // maximum pixel width of a row.
-       int width = workWidth()
-               - rightMargin(pit, *bv()->buffer(), row);
+       pos_type const end = pit->size();
+       pos_type const pos = row.pos();
+       if (pos == end) {
+               row.endpos(end);
+               return;
+       }
 
-       // inset->textWidth() returns -1 via workWidth(),
-       // but why ?
-       if (width < 0)
-               return pit->size();
+       // maximum pixel width of a row
+       int width = textWidth() - rightMargin(*pit); // - leftMargin(pit, row);
+       if (width < 0) {
+               row.endpos(end);
+               return;
+       }
 
        LyXLayout_ptr const & layout = pit->layout();
 
-       if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX)
-               return addressBreakPoint(row.pos(), *pit);
+       if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
+               row.endpos(addressBreakPoint(pos, *pit));
+               return;
+       }
 
-       pos_type const pos = row.pos();
-       pos_type const body_pos = pit->beginningOfBody();
-       pos_type const last = pit->size();
-       pos_type point = last;
+       pos_type const body_pos = pit->beginOfBody();
 
-       if (pos == last)
-               return last;
 
        // Now we iterate through until we reach the right margin
        // or the end of the par, then choose the possible break
        // nearest that.
 
-       int const left = leftMargin(pit, row);
+       int const left = leftMargin(pit, pos);
        int x = left;
 
        // pixel width since last breakpoint
        int chunkwidth = 0;
 
-       pos_type i = pos;
 
        // We re-use the font resolution for the entire font span when possible
-       LyXFont font = getFont(pit, i);
-       lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
+       LyXFont font = getFont(pit, pos);
+       lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(pos);
 
-       for (; i < last; ++i) {
+       pos_type point = end;
+       pos_type i = pos;
+       for ( ; i < end; ++i) {
                if (pit->isNewline(i)) {
-                       point = i;
+                       point = i + 1;
                        break;
                }
+               // Break before...
+               if (i + 1 < end) {
+                       if (pit->isInset(i + 1) && pit->getInset(i + 1)->display()) {
+                               point = i + 1;
+                               break;
+                       }
+                       // ...and after.
+                       if (pit->isInset(i) && pit->getInset(i)->display()) {
+                               point = i + 1;
+                               break;
+                       }
+               }
 
                char const c = pit->getChar(i);
+
                if (i > endPosOfFontSpan) {
                        font = getFont(pit, i);
                        endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
                }
 
-               int thiswidth;
-
-               // add the auto-hfill from label end to the body
-               if (body_pos && i == body_pos) {
-                       thiswidth = font_metrics::width(layout->labelsep, getLabelFont(pit));
-                       if (pit->isLineSeparator(i - 1))
-                               thiswidth -= singleWidth(pit, i - 1);
-                       int left_margin = labelEnd(pit, row);
-                       if (thiswidth + x < left_margin)
-                               thiswidth = left_margin - x;
-                       thiswidth += singleWidth(pit, i, c, font);
-               } else {
-                       thiswidth = singleWidth(pit, i, c, font);
-               }
+               {
+                       int thiswidth = singleWidth(pit, i, c, font);
 
-               x += thiswidth;
-               chunkwidth += thiswidth;
+                       // add the auto-hfill from label end to the body
+                       if (body_pos && i == body_pos) {
+                               int add = font_metrics::width(layout->labelsep, getLabelFont(pit));
+                               if (pit->isLineSeparator(i - 1))
+                                       add -= singleWidth(pit, i - 1);
+
+                               add = std::max(add, labelEnd(pit) - x);
+                               thiswidth += add;
+                       }
 
-               InsetOld * in = pit->isInset(i) ? pit->getInset(i) : 0;
+                       x += thiswidth;
+                       chunkwidth += thiswidth;
+               }
 
                // break before a character that will fall off
                // the right of the row
                if (x >= width) {
                        // if no break before, break here
-                       if (point == last || chunkwidth >= (width - left)) {
-                               if (pos < i)
-                                       point = i - 1;
-                               else
+                       if (point == end || chunkwidth >= width - left) {
+                               if (i > pos)
                                        point = i;
+                               else
+                                       point = i + 1;
+
                        }
+                       // exit on last registered breakpoint:
                        break;
                }
 
-               if (!in || in->isChar()) {
+               if (!pit->isInset(i) || pit->getInset(i)->isChar()) {
                        // some insets are line separators too
                        if (pit->isLineSeparator(i)) {
-                               point = i;
+                               // register breakpoint:
+                               point = i + 1;
                                chunkwidth = 0;
                        }
-                       continue;
                }
-
-               continue;
        }
 
-       if (point == last && x >= width) {
-               // didn't find one, break at the point we reached the edge
-               point = i;
-       } else if (i == last && x < width) {
-               // found one, but we fell off the end of the par, so prefer
-               // that.
-               point = last;
+       if (i == end && x < width) {
+               // maybe found one, but the par is short enough.
+               point = end;
        }
 
        // manual labels cannot be broken in LaTeX. But we
        // want to make our on-screen rendering of footnotes
        // etc. still break
        if (body_pos && point < body_pos)
-               point = body_pos - 1;
+               point = body_pos;
 
-       return point;
+       row.endpos(point);
 }
 
 
-// returns the minimum space a row needs on the screen in pixel
-int LyXText::fill(ParagraphList::iterator pit,
-       RowList::iterator row, int paper_width) const
+void LyXText::setRowWidth(ParagraphList::iterator pit, Row & row) const
 {
-       if (paper_width < 0)
-               return 0;
-
-       int w;
        // get the pure distance
-       pos_type const last = lastPos(*pit, row);
+       pos_type const end = row.endpos();
 
-       LyXLayout_ptr const & layout = pit->layout();
-
-       // special handling of the right address boxes
-       if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
-               int const tmpfill = row->fill();
-               row->fill(0); // the minfill in MarginLeft()
-               w = leftMargin(pit, *row);
-               row->fill(tmpfill);
-       } else
-               w = leftMargin(pit, *row);
+       string labelsep = pit->layout()->labelsep;
+       int w = leftMargin(pit, row.pos());
 
-       pos_type const body_pos = pit->beginningOfBody();
-       pos_type i = row->pos();
+       pos_type const body_pos = pit->beginOfBody();
+       pos_type i = row.pos();
 
-       if (! pit->empty() && i <= last) {
+       if (i < end) {
                // We re-use the font resolution for the entire span when possible
                LyXFont font = getFont(pit, i);
                lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
-               while (i <= last) {
+               for ( ; i < end; ++i) {
                        if (body_pos > 0 && i == body_pos) {
-                               w += font_metrics::width(layout->labelsep, getLabelFont(pit));
+                               w += font_metrics::width(labelsep, getLabelFont(pit));
                                if (pit->isLineSeparator(i - 1))
                                        w -= singleWidth(pit, i - 1);
-                               int left_margin = labelEnd(pit, *row);
-                               if (w < left_margin)
-                                       w = left_margin;
+                               w = max(w, labelEnd(pit));
                        }
                        char const c = pit->getChar(i);
                        if (IsPrintable(c) && i > endPosOfFontSpan) {
@@ -815,45 +599,28 @@ int LyXText::fill(ParagraphList::iterator pit,
                                endPosOfFontSpan = pit->getEndPosOfFontSpan(i);
                        }
                        w += singleWidth(pit, i, c, font);
-                       ++i;
                }
        }
-       if (body_pos > 0 && body_pos > last) {
-               w += font_metrics::width(layout->labelsep, getLabelFont(pit));
-               if (last >= 0 && pit->isLineSeparator(last))
-                       w -= singleWidth(pit, last);
-               int const left_margin = labelEnd(pit, *row);
-               if (w < left_margin)
-                       w = left_margin;
-       }
 
-       int const fill = paper_width - w - rightMargin(pit, *bv()->buffer(), *row);
-
-       // If this case happens, it means that our calculation
-       // of the widths of the chars when we do rowBreakPoint()
-       // went wrong for some reason. Typically in list bodies.
-       // Things just about hobble on anyway, though you'll end
-       // up with a "fill_separator" less than zero, which corresponds
-       // to inter-word spacing being too small. Hopefully this problem
-       // will die when the label hacks die.
-       if (lyxerr.debugging() && fill < 0) {
-               lyxerr[Debug::GUI] << "Eek, fill() was < 0: " << fill
-                       << " w " << w << " paper_width " << paper_width
-                       << " right margin " << rightMargin(pit, *bv()->buffer(), *row) << endl;
+       if (body_pos > 0 && body_pos >= end) {
+               w += font_metrics::width(labelsep, getLabelFont(pit));
+               if (end > 0 && pit->isLineSeparator(end - 1))
+                       w -= singleWidth(pit, end - 1);
+               w = max(w, labelEnd(pit));
        }
-       return fill;
+
+       row.width(w + rightMargin(*pit));
 }
 
 
 // returns the minimum space a manual label needs on the screen in pixel
 int LyXText::labelFill(ParagraphList::iterator pit, Row const & row) const
 {
-       pos_type last = pit->beginningOfBody();
+       pos_type last = pit->beginOfBody();
 
        BOOST_ASSERT(last > 0);
 
-       // -1 because a label ends either with a space that is in the label,
-       // or with the beginning of a footnote that is outside the label.
+       // -1 because a label ends with a space that is in the label
        --last;
 
        // a separator at this end does not count
@@ -861,49 +628,40 @@ int LyXText::labelFill(ParagraphList::iterator pit, Row const & row) const
                --last;
 
        int w = 0;
-       pos_type i = row.pos();
-       while (i <= last) {
+       for (pos_type i = row.pos(); i <= last; ++i)
                w += singleWidth(pit, i);
-               ++i;
-       }
 
-       int fill = 0;
-       string const & labwidstr = pit->params().labelWidthString();
-       if (!labwidstr.empty()) {
-               LyXFont const labfont = getLabelFont(pit);
-               int const labwidth = font_metrics::width(labwidstr, labfont);
-               fill = max(labwidth - w, 0);
-       }
+       string const & label = pit->params().labelWidthString();
+       if (label.empty())
+               return 0;
 
-       return fill;
+       return max(0, font_metrics::width(label, getLabelFont(pit)) - w);
 }
 
 
 LColor_color LyXText::backgroundColor() const
 {
-       if (inset_owner)
-               return inset_owner->backgroundColor();
-       else
-               return LColor::background;
+       return LColor_color(LColor::color(background_color_));
 }
 
 
-void LyXText::setHeightOfRow(ParagraphList::iterator pit, RowList::iterator rit)
+void LyXText::setHeightOfRow(ParagraphList::iterator pit, Row & row)
 {
        // get the maximum ascent and the maximum descent
        double layoutasc = 0;
        double layoutdesc = 0;
-       double tmptop = 0;
+       double const dh = defaultRowHeight();
 
        // ok, let us initialize the maxasc and maxdesc value.
        // Only the fontsize count. The other properties
        // are taken from the layoutfont. Nicer on the screen :)
        LyXLayout_ptr const & layout = pit->layout();
 
-       // as max get the first character of this row then it can increase but not
-       // decrease the height. Just some point to start with so we don't have to
-       // do the assignment below too often.
-       LyXFont font = getFont(pit, rit->pos());
+       // as max get the first character of this row then it can
+       // increase but not decrease the height. Just some point to
+       // start with so we don't have to do the assignment below too
+       // often.
+       LyXFont font = getFont(pit, row.pos());
        LyXFont::FONT_SIZE const tmpsize = font.size();
        font = getLayoutFont(pit);
        LyXFont::FONT_SIZE const size = font.size();
@@ -911,77 +669,33 @@ void LyXText::setHeightOfRow(ParagraphList::iterator pit, RowList::iterator rit)
 
        LyXFont labelfont = getLabelFont(pit);
 
-       double spacing_val = 1.0;
-       if (!pit->params().spacing().isDefault())
-               spacing_val = pit->params().spacing().getValue();
-       else
-               spacing_val = bv()->buffer()->params().spacing().getValue();
+       // these are minimum values
+       double const spacing_val = layout->spacing.getValue() * spacing(*pit);
        //lyxerr << "spacing_val = " << spacing_val << endl;
-
-       int maxasc  = int(font_metrics::maxAscent(font) *
-                         layout->spacing.getValue() * spacing_val);
-       int maxdesc = int(font_metrics::maxDescent(font) *
-                         layout->spacing.getValue() * spacing_val);
-
-       pos_type const pos_end = lastPos(*pit, rit);
-       int labeladdon = 0;
-       int maxwidth = 0;
-
-       if (!pit->empty()) {
-               // We re-use the font resolution for the entire font span when possible
-               LyXFont font = getFont(pit, rit->pos());
-               lyx::pos_type endPosOfFontSpan = pit->getEndPosOfFontSpan(rit->pos());
-
-               // Optimisation
-               Paragraph const & par = *pit;
-
-               // Check if any insets are larger
-               for (pos_type pos = rit->pos(); pos <= pos_end; ++pos) {
-                       // Manual inlined optimised version of common case of
-                       // "maxwidth += singleWidth(pit, pos);"
-                       char const c = par.getChar(pos);
-
-                       if (IsPrintable(c)) {
-                               if (pos > endPosOfFontSpan) {
-                                       // We need to get the next font
-                                       font = getFont(pit, pos);
-                                       endPosOfFontSpan = par.getEndPosOfFontSpan(pos);
-                               }
-                               if (! font.language()->RightToLeft()) {
-                                       maxwidth += font_metrics::width(c, font);
-                               } else {
-                                       // Fall-back to normal case
-                                       maxwidth += singleWidth(pit, pos, c, font);
-                                       // And flush font cache
-                                       endPosOfFontSpan = 0;
-                               }
-                       } else {
-                               // Special handling of insets - are any larger?
-                               if (par.isInset(pos)) {
-                                       InsetOld const * tmpinset = par.getInset(pos);
-                                       if (tmpinset) {
-                                               maxwidth += tmpinset->width();
-                                               maxasc = max(maxasc, tmpinset->ascent());
-                                               maxdesc = max(maxdesc, tmpinset->descent());
-                                       }
-                               } else {
-                                       // Fall-back to normal case
-                                       maxwidth += singleWidth(pit, pos, c, font);
-                                       // And flush font cache
-                                       endPosOfFontSpan = 0;
-                               }
-                       }
+       int maxasc  = int(font_metrics::maxAscent(font)  * spacing_val);
+       int maxdesc = int(font_metrics::maxDescent(font) * spacing_val);
+
+       // insets may be taller
+       InsetList::iterator ii = pit->insetlist.begin();
+       InsetList::iterator iend = pit->insetlist.end();
+       for ( ; ii != iend; ++ii) {
+               if (ii->pos >= row.pos() && ii->pos < row.endpos()) {
+                       maxasc  = max(maxasc,  ii->inset->ascent());
+                       maxdesc = max(maxdesc, ii->inset->descent());
                }
        }
 
        // Check if any custom fonts are larger (Asger)
        // This is not completely correct, but we can live with the small,
        // cosmetic error for now.
+       int labeladdon = 0;
+       pos_type const pos_end = row.endpos();
+
        LyXFont::FONT_SIZE maxsize =
-               pit->highestFontInRange(rit->pos(), pos_end, size);
+               pit->highestFontInRange(row.pos(), pos_end, size);
        if (maxsize > font.size()) {
                font.setSize(maxsize);
-               maxasc = max(maxasc, font_metrics::maxAscent(font));
+               maxasc  = max(maxasc,  font_metrics::maxAscent(font));
                maxdesc = max(maxdesc, font_metrics::maxDescent(font));
        }
 
@@ -989,231 +703,141 @@ void LyXText::setHeightOfRow(ParagraphList::iterator pit, RowList::iterator rit)
        ++maxasc;
        ++maxdesc;
 
-       rit->ascent_of_text(maxasc);
+       row.ascent_of_text(maxasc);
 
        // is it a top line?
-       if (!rit->pos()) {
+       if (row.pos() == 0) {
                BufferParams const & bufparams = bv()->buffer()->params();
                // some parksips VERY EASY IMPLEMENTATION
-               if (bv()->buffer()->params().paragraph_separation ==
-                       BufferParams::PARSEP_SKIP)
+               if (bv()->buffer()->params().paragraph_separation
+                   == BufferParams::PARSEP_SKIP
+                       && pit != paragraphs().begin()
+                       && ((layout->isParagraph() && pit->getDepth() == 0)
+                           || (boost::prior(pit)->layout()->isParagraph()
+                               && boost::prior(pit)->getDepth() == 0)))
                {
-                       if (layout->isParagraph()
-                               && pit->getDepth() == 0
-                               && pit != ownerParagraphs().begin())
-                       {
                                maxasc += bufparams.getDefSkip().inPixels(*bv());
-                       } else if (pit != ownerParagraphs().begin() &&
-                                  boost::prior(pit)->layout()->isParagraph() &&
-                                  boost::prior(pit)->getDepth() == 0)
-                       {
-                               // is it right to use defskip here too? (AS)
-                               maxasc += bufparams.getDefSkip().inPixels(*bv());
-                       }
                }
 
-               // the top margin
-               if (pit == ownerParagraphs().begin() && !isInInset())
-                       maxasc += PAPER_MARGIN;
-
-               // add the vertical spaces, that the user added
-               maxasc += getLengthMarkerHeight(*bv(), pit->params().spaceTop());
-
-               // do not forget the DTP-lines!
-               // there height depends on the font of the nearest character
-               if (pit->params().lineTop())
-
-                       maxasc += 2 * font_metrics::ascent('x', getFont(pit, 0));
-               // and now the pagebreaks
-               if (pit->params().pagebreakTop())
-                       maxasc += 3 * defaultRowHeight();
-
                if (pit->params().startOfAppendix())
-                       maxasc += 3 * defaultRowHeight();
+                       maxasc += int(3 * dh);
 
                // This is special code for the chapter, since the label of this
                // layout is printed in an extra row
                if (layout->counter == "chapter" && bufparams.secnumdepth >= 0) {
-                       float spacing_val = 1.0;
-                       if (!pit->params().spacing().isDefault()) {
-                               spacing_val = pit->params().spacing().getValue();
-                       } else {
-                               spacing_val = bufparams.spacing().getValue();
-                       }
-
-                       labeladdon = int(font_metrics::maxDescent(labelfont) *
-                                        layout->spacing.getValue() *
-                                        spacing_val)
-                               + int(font_metrics::maxAscent(labelfont) *
-                                     layout->spacing.getValue() *
-                                     spacing_val);
+                       labeladdon = int(font_metrics::maxHeight(labelfont)
+                                    * layout->spacing.getValue() * spacing(*pit));
                }
 
                // special code for the top label
                if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
                     || layout->labeltype == LABEL_BIBLIO
                     || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
-                   && isFirstInSequence(pit, ownerParagraphs())
+                   && isFirstInSequence(pit, paragraphs())
                    && !pit->getLabelstring().empty())
                {
-                       float spacing_val = 1.0;
-                       if (!pit->params().spacing().isDefault()) {
-                               spacing_val = pit->params().spacing().getValue();
-                       } else {
-                               spacing_val = bufparams.spacing().getValue();
-                       }
-
                        labeladdon = int(
-                               (font_metrics::maxAscent(labelfont) +
-                                font_metrics::maxDescent(labelfont)) *
-                                 layout->spacing.getValue() *
-                                 spacing_val
-                               + layout->topsep * defaultRowHeight()
-                               + layout->labelbottomsep * defaultRowHeight());
+                                 font_metrics::maxHeight(labelfont)
+                                       * layout->spacing.getValue()
+                                       * spacing(*pit)
+                               + (layout->topsep + layout->labelbottomsep) * dh);
                }
 
-               // And now the layout spaces, for example before and after
+               // Add the layout spaces, for example before and after
                // a section, or between the items of a itemize or enumerate
                // environment.
 
-               if (!pit->params().pagebreakTop()) {
-                       ParagraphList::iterator prev =
-                               depthHook(pit, ownerParagraphs(),
-                                         pit->getDepth());
-                       if (prev != pit && prev->layout() == layout &&
-                               prev->getDepth() == pit->getDepth() &&
-                               prev->getLabelWidthString() == pit->getLabelWidthString())
-                       {
-                               layoutasc = (layout->itemsep * defaultRowHeight());
-                       } else if (rit != firstRow()) {
-                               tmptop = layout->topsep;
-
-                               //if (boost::prior(pit)->getDepth() >= pit->getDepth())
-                               //      tmptop -= getPar(previousRow(rit))->layout()->bottomsep;
-
-                               if (tmptop > 0)
-                                       layoutasc = (tmptop * defaultRowHeight());
-                       } else if (pit->params().lineTop()) {
-                               tmptop = layout->topsep;
-
-                               if (tmptop > 0)
-                                       layoutasc = (tmptop * defaultRowHeight());
-                       }
+               ParagraphList::iterator prev =
+                       depthHook(pit, paragraphs(), pit->getDepth());
+               if (prev != pit
+                   && prev->layout() == layout
+                   && prev->getDepth() == pit->getDepth()
+                   && prev->getLabelWidthString() == pit->getLabelWidthString())
+               {
+                       layoutasc = layout->itemsep * dh;
+               } else if (pit != paragraphs().begin() || row.pos() != 0) {
+                       if (layout->topsep > 0)
+                               layoutasc = layout->topsep * dh;
+               }
 
-                       prev = outerHook(pit, ownerParagraphs());
-                       if (prev != ownerParagraphs().end())  {
-                               maxasc += int(prev->layout()->parsep * defaultRowHeight());
-                       } else if (pit != ownerParagraphs().begin()) {
-                               ParagraphList::iterator prior_pit = boost::prior(pit);
-                               if (prior_pit->getDepth() != 0 ||
-                                   prior_pit->layout() == layout) {
-                                       maxasc += int(layout->parsep * defaultRowHeight());
-                               }
+               prev = outerHook(pit, paragraphs());
+               if (prev != paragraphs().end()) {
+                       maxasc += int(prev->layout()->parsep * dh);
+               } else if (pit != paragraphs().begin()) {
+                       ParagraphList::iterator prior_pit = boost::prior(pit);
+                       if (prior_pit->getDepth() != 0 ||
+                                       prior_pit->layout() == layout) {
+                               maxasc += int(layout->parsep * dh);
                        }
                }
        }
 
        // is it a bottom line?
-       if (boost::next(rit) == pit->rows.end()) {
-               // the bottom margin
-               ParagraphList::iterator nextpit = boost::next(pit);
-               if (nextpit == ownerParagraphs().end() && !isInInset())
-                       maxdesc += PAPER_MARGIN;
-
-               // add the vertical spaces, that the user added
-               maxdesc += getLengthMarkerHeight(*bv(), pit->params().spaceBottom());
-
-               // do not forget the DTP-lines!
-               // there height depends on the font of the nearest character
-               if (pit->params().lineBottom())
-                       maxdesc += 2 * font_metrics::ascent('x',
-                                       getFont(pit, max(pos_type(0), pit->size() - 1)));
-
-               // and now the pagebreaks
-               if (pit->params().pagebreakBottom())
-                       maxdesc += 3 * defaultRowHeight();
-
-               // and now the layout spaces, for example before and after
+       if (row.endpos() >= pit->size()) {
+               // add the layout spaces, for example before and after
                // a section, or between the items of a itemize or enumerate
                // environment
-               if (!pit->params().pagebreakBottom()
-                   && nextpit != ownerParagraphs().end()) {
-                       ParagraphList::iterator comparepit = pit;
-                       float usual = 0;
-                       float unusual = 0;
-
-                       if (comparepit->getDepth() > nextpit->getDepth()) {
-                               usual = (comparepit->layout()->bottomsep * defaultRowHeight());
-                               comparepit = depthHook(comparepit, ownerParagraphs(), nextpit->getDepth());
-                               if (comparepit->layout()!= nextpit->layout()
-                                       || nextpit->getLabelWidthString() !=
-                                       comparepit->getLabelWidthString())
+               ParagraphList::iterator nextpit = boost::next(pit);
+               if (nextpit != paragraphs().end()) {
+                       ParagraphList::iterator cpit = pit;
+                       double usual = 0;
+                       double unusual = 0;
+
+                       if (cpit->getDepth() > nextpit->getDepth()) {
+                               usual = cpit->layout()->bottomsep * dh;
+                               cpit = depthHook(cpit, paragraphs(), nextpit->getDepth());
+                               if (cpit->layout() != nextpit->layout()
+                                       || nextpit->getLabelWidthString() != cpit->getLabelWidthString())
                                {
-                                       unusual = (comparepit->layout()->bottomsep * defaultRowHeight());
+                                       unusual = cpit->layout()->bottomsep * dh;
                                }
-                               if (unusual > usual)
-                                       layoutdesc = unusual;
-                               else
-                                       layoutdesc = usual;
-                       } else if (comparepit->getDepth() ==  nextpit->getDepth()) {
-
-                               if (comparepit->layout() != nextpit->layout()
-                                       || nextpit->getLabelWidthString() !=
-                                       comparepit->getLabelWidthString())
-                                       layoutdesc = int(comparepit->layout()->bottomsep * defaultRowHeight());
+                               layoutdesc = max(unusual, usual);
+                       } else if (cpit->getDepth() == nextpit->getDepth()) {
+                               if (cpit->layout() != nextpit->layout()
+                                       || nextpit->getLabelWidthString() != cpit->getLabelWidthString())
+                                       layoutdesc = int(cpit->layout()->bottomsep * dh);
                        }
                }
        }
 
        // incalculate the layout spaces
-       maxasc += int(layoutasc * 2 / (2 + pit->getDepth()));
+       maxasc  += int(layoutasc  * 2 / (2 + pit->getDepth()));
        maxdesc += int(layoutdesc * 2 / (2 + pit->getDepth()));
 
-       rit->height(maxasc + maxdesc + labeladdon);
-       rit->baseline(maxasc + labeladdon);
-       rit->top_of_text(rit->baseline() - font_metrics::maxAscent(font));
-
-       double x = 0;
-       rit->width(int(maxwidth + x));
-       if (inset_owner) {
-               width = max(0, workWidth());
-               RowList::iterator rit = firstRow();
-               RowList::iterator end = endRow();
-               ParagraphList::iterator it = ownerParagraphs().begin();
-               while (rit != end) {
-                       if (rit->width() > width)
-                               width = rit->width();
-                       nextRow(it, rit);
-               }
-       }
+       row.height(maxasc + maxdesc + labeladdon);
+       row.baseline(maxasc + labeladdon);
+       row.top_of_text(row.baseline() - font_metrics::maxAscent(font));
 }
 
 
-void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
+void LyXText::breakParagraph(LCursor & cur, char keep_layout)
 {
+       BOOST_ASSERT(this == cur.text());
        // allow only if at start or end, or all previous is new text
-       if (cursor.pos() && cursor.pos() != cursorPar()->size()
-               && cursorPar()->isChangeEdited(0, cursor.pos()))
+       Paragraph & cpar = cur.paragraph();
+       ParagraphList::iterator cpit = getPar(cur.par());
+
+       if (cur.pos() != 0 && cur.pos() != cur.lastpos()
+           && cpar.isChangeEdited(0, cur.pos()))
                return;
 
        LyXTextClass const & tclass =
                bv()->buffer()->params().getLyXTextClass();
-       LyXLayout_ptr const & layout = cursorPar()->layout();
+       LyXLayout_ptr const & layout = cpar.layout();
 
-       // this is only allowed, if the current paragraph is not empty or caption
-       // and if it has not the keepempty flag active
-       if (cursorPar()->empty() && !cursorPar()->allowEmpty()
+       // this is only allowed, if the current paragraph is not empty
+       // or caption and if it has not the keepempty flag active
+       if (cur.lastpos() == 0 && !cpar.allowEmpty()
           && layout->labeltype != LABEL_SENSITIVE)
                return;
 
-       recordUndo(bv(), Undo::ATOMIC, cursorPar());
+       // a layout change may affect also the following paragraph
+       recUndo(cur.par(), parOffset(undoSpan(cpit)) - 1);
 
        // Always break behind a space
-       //
        // It is better to erase the space (Dekel)
-       if (cursor.pos() < cursorPar()->size()
-            && cursorPar()->isLineSeparator(cursor.pos()))
-          cursorPar()->erase(cursor.pos());
+       if (cur.pos() != cur.lastpos() && cpar.isLineSeparator(cur.pos()))
+               cpar.erase(cur.pos());
 
        // break the paragraph
        if (keep_layout)
@@ -1225,21 +849,18 @@ void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
        // breakParagraph call should return a bool if it inserts the
        // paragraph before or behind and we should react on that one
        // but we can fix this in 1.3.0 (Jug 20020509)
-       bool const isempty = (cursorPar()->allowEmpty() && cursorPar()->empty());
-       ::breakParagraph(bv()->buffer()->params(), paragraphs, cursorPar(),
-                        cursor.pos(), keep_layout);
+       bool const isempty = cpar.allowEmpty() && cpar.empty();
+       ::breakParagraph(bv()->buffer()->params(), paragraphs(), cpit,
+                        cur.pos(), keep_layout);
 
-#warning Trouble Point! (Lgb)
-       // When ::breakParagraph is called from within an inset we must
-       // ensure that the correct ParagraphList is used. Today that is not
-       // the case and the Buffer::paragraphs is used. Not good. (Lgb)
-       ParagraphList::iterator next_par = boost::next(cursorPar());
+       cpit = getPar(cur.par());
+       ParagraphList::iterator next_par = boost::next(cpit);
 
        // well this is the caption hack since one caption is really enough
        if (layout->labeltype == LABEL_SENSITIVE) {
-               if (!cursor.pos())
+               if (!cur.pos())
                        // set to standard-layout
-                       cursorPar()->applyLayout(tclass.defaultLayout());
+                       cpit->applyLayout(tclass.defaultLayout());
                else
                        // set to standard-layout
                        next_par->applyLayout(tclass.defaultLayout());
@@ -1249,48 +870,51 @@ void LyXText::breakParagraph(ParagraphList & paragraphs, char keep_layout)
        // move one row up!
        // This touches only the screen-update. Otherwise we would may have
        // an empty row on the screen
-       if (cursor.pos() && cursorRow()->pos() == cursor.pos()
-           && !cursorPar()->isNewline(cursor.pos() - 1))
+       if (cur.pos() != 0 && cur.textRow().pos() == cur.pos()
+           && !cpit->isNewline(cur.pos() - 1))
        {
-               cursorLeft(bv());
+               cursorLeft(cur);
        }
 
        while (!next_par->empty() && next_par->isNewline(0))
                next_par->erase(0);
 
        updateCounters();
-       redoParagraph(cursorPar());
+       redoParagraph(cpit);
        redoParagraph(next_par);
 
        // This check is necessary. Otherwise the new empty paragraph will
        // be deleted automatically. And it is more friendly for the user!
-       if (cursor.pos() || isempty)
-               setCursor(next_par, 0);
+       if (cur.pos() != 0 || isempty)
+               setCursor(cur, cur.par() + 1, 0);
        else
-               setCursor(cursorPar(), 0);
+               setCursor(cur, cur.par(), 0);
 }
 
 
 // convenience function
-void LyXText::redoParagraph()
+void LyXText::redoParagraph(LCursor & cur)
 {
-       clearSelection();
-       redoParagraph(cursorPar());
-       setCursorIntern(cursor.par(), cursor.pos());
+       BOOST_ASSERT(this == cur.text());
+       cur.clearSelection();
+       redoParagraph(getPar(cur.par()));
+       setCursorIntern(cur, cur.par(), cur.pos());
 }
 
 
 // insert a character, moves all the following breaks in the
 // same Paragraph one to the right and make a rebreak
-void LyXText::insertChar(char c)
+void LyXText::insertChar(LCursor & cur, char c)
 {
-       recordUndo(bv(), Undo::INSERT, cursorPar());
+       BOOST_ASSERT(this == cur.text());
+       recordUndo(cur, Undo::INSERT);
 
-       // When the free-spacing option is set for the current layout,
-       // disable the double-space checking
+       Paragraph & par = cur.paragraph();
+       // try to remove this
+       ParagraphList::iterator pit = getPar(cur.par());
 
-       bool const freeSpacing = cursorPar()->layout()->free_spacing ||
-               cursorPar()->isFreeSpacing();
+       bool const freeSpacing = par.layout()->free_spacing ||
+               par.isFreeSpacing();
 
        if (lyxrc.auto_number) {
                static string const number_operators = "+-/*";
@@ -1300,42 +924,33 @@ void LyXText::insertChar(char c)
                if (current_font.number() == LyXFont::ON) {
                        if (!IsDigit(c) && !contains(number_operators, c) &&
                            !(contains(number_seperators, c) &&
-                             cursor.pos() >= 1 &&
-                             cursor.pos() < cursorPar()->size() &&
-                             getFont(cursorPar(), cursor.pos()).number() == LyXFont::ON &&
-                             getFont(cursorPar(), cursor.pos() - 1).number() == LyXFont::ON)
+                             cur.pos() != 0 &&
+                             cur.pos() != cur.lastpos() &&
+                             getFont(pit, cur.pos()).number() == LyXFont::ON &&
+                             getFont(pit, cur.pos() - 1).number() == LyXFont::ON)
                           )
-                               number(bv()); // Set current_font.number to OFF
+                               number(cur); // Set current_font.number to OFF
                } else if (IsDigit(c) &&
                           real_current_font.isVisibleRightToLeft()) {
-                       number(bv()); // Set current_font.number to ON
+                       number(cur); // Set current_font.number to ON
 
-                       if (cursor.pos() > 0) {
-                               char const c = cursorPar()->getChar(cursor.pos() - 1);
+                       if (cur.pos() != 0) {
+                               char const c = par.getChar(cur.pos() - 1);
                                if (contains(number_unary_operators, c) &&
-                                   (cursor.pos() == 1 ||
-                                    cursorPar()->isSeparator(cursor.pos() - 2) ||
-                                    cursorPar()->isNewline(cursor.pos() - 2))
+                                   (cur.pos() == 1
+                                    || par.isSeparator(cur.pos() - 2)
+                                    || par.isNewline(cur.pos() - 2))
                                  ) {
-                                       setCharFont(
-                                                   cursorPar(),
-                                                   cursor.pos() - 1,
-                                                   current_font);
-                               } else if (contains(number_seperators, c) &&
-                                          cursor.pos() >= 2 &&
-                                          getFont(
-                                                  cursorPar(),
-                                                  cursor.pos() - 2).number() == LyXFont::ON) {
-                                       setCharFont(
-                                                   cursorPar(),
-                                                   cursor.pos() - 1,
-                                                   current_font);
+                                       setCharFont(pit, cur.pos() - 1, current_font);
+                               } else if (contains(number_seperators, c)
+                                    && cur.pos() >= 2
+                                    && getFont(pit, cur.pos() - 2).number() == LyXFont::ON) {
+                                       setCharFont(pit, cur.pos() - 1, current_font);
                                }
                        }
                }
        }
 
-
        // First check, if there will be two blanks together or a blank at
        // the beginning of a paragraph.
        // I decided to handle blanks like normal characters, the main
@@ -1352,43 +967,48 @@ void LyXText::insertChar(char c)
        LyXFont realtmpfont = real_current_font;
        LyXFont rawtmpfont = current_font;
 
+       // When the free-spacing option is set for the current layout,
+       // disable the double-space checking
        if (!freeSpacing && IsLineSeparatorChar(c)) {
-               if ((cursor.pos() > 0
-                    && cursorPar()->isLineSeparator(cursor.pos() - 1))
-                   || (cursor.pos() > 0
-                       && cursorPar()->isNewline(cursor.pos() - 1))
-                   || (cursor.pos() == 0)) {
+               if (cur.pos() == 0) {
                        static bool sent_space_message = false;
                        if (!sent_space_message) {
-                               if (cursor.pos() == 0)
-                                       bv()->owner()->message(_("You cannot insert a space at the beginning of a paragraph. Please read the Tutorial."));
-                               else
-                                       bv()->owner()->message(_("You cannot type two spaces this way. Please read the Tutorial."));
+                               cur.message(_("You cannot insert a space at the "
+                                       "beginning of a paragraph. Please read the Tutorial."));
+                               sent_space_message = true;
+                               return;
+                       }
+               }
+               BOOST_ASSERT(cur.pos() > 0);
+               if (par.isLineSeparator(cur.pos() - 1)
+                   || par.isNewline(cur.pos() - 1)) {
+                       static bool sent_space_message = false;
+                       if (!sent_space_message) {
+                               cur.message(_("You cannot type two spaces this way. "
+                                       "Please read the Tutorial."));
                                sent_space_message = true;
                        }
-                       charInserted();
                        return;
                }
        }
 
        // Here case LyXText::InsertInset already inserted the character
        if (c != Paragraph::META_INSET)
-               cursorPar()->insertChar(cursor.pos(), c);
+               par.insertChar(cur.pos(), c);
 
-       setCharFont(cursorPar(), cursor.pos(), rawtmpfont);
+       setCharFont(pit, cur.pos(), rawtmpfont);
 
        current_font = rawtmpfont;
        real_current_font = realtmpfont;
-       redoParagraph(cursorPar());
-       setCursor(cursor.par(), cursor.pos() + 1, false, cursor.boundary());
-
+       redoParagraph(cur);
+       setCursor(cur, cur.par(), cur.pos() + 1, false, cur.boundary());
        charInserted();
 }
 
 
 void LyXText::charInserted()
 {
-       // Here we could call finishUndo for every 20 characters inserted.
+       // Here we call finishUndo for every 20 characters inserted.
        // This is from my experience how emacs does it. (Lgb)
        static unsigned int counter;
        if (counter < 20) {
@@ -1400,21 +1020,19 @@ void LyXText::charInserted()
 }
 
 
-void LyXText::prepareToPrint(ParagraphList::iterator pit,
-           RowList::iterator const rit) const
+void LyXText::prepareToPrint(ParagraphList::iterator pit, Row & row) const
 {
-       double w = rit->fill();
+       double w = textWidth() - row.width();
        double fill_hfill = 0;
        double fill_label_hfill = 0;
        double fill_separator = 0;
        double x = 0;
 
-       bool const is_rtl =
-               pit->isRightToLeftPar(bv()->buffer()->params());
+       bool const is_rtl = isRTL(*pit);
        if (is_rtl)
-               x = workWidth() > 0 ? rightMargin(pit, *bv()->buffer(), *rit) : 0;
+               x = rightMargin(*pit);
        else
-               x = workWidth() > 0 ? leftMargin(pit, *rit) : 0;
+               x = leftMargin(pit, row.pos());
 
        // is there a manual margin with a manual label
        LyXLayout_ptr const & layout = pit->layout();
@@ -1422,7 +1040,7 @@ void LyXText::prepareToPrint(ParagraphList::iterator pit,
        if (layout->margintype == MARGIN_MANUAL
            && layout->labeltype == LABEL_MANUAL) {
                /// We might have real hfills in the label part
-               int nlh = numberOfLabelHfills(*pit, rit);
+               int nlh = numberOfLabelHfills(*pit, row);
 
                // A manual label par (e.g. List) has an auto-hfill
                // between the label text and the body of the
@@ -1432,13 +1050,12 @@ void LyXText::prepareToPrint(ParagraphList::iterator pit,
                if (!pit->empty())
                        ++nlh;
 
-               if (nlh && !pit->getLabelWidthString().empty()) {
-                       fill_label_hfill = labelFill(pit, *rit) / double(nlh);
-               }
+               if (nlh && !pit->getLabelWidthString().empty())
+                       fill_label_hfill = labelFill(pit, row) / double(nlh);
        }
 
        // are there any hfills in the row?
-       int const nh = numberOfHfills(*pit, rit);
+       int const nh = numberOfHfills(*pit, row);
 
        if (nh) {
                if (w > 0)
@@ -1446,363 +1063,262 @@ void LyXText::prepareToPrint(ParagraphList::iterator pit,
        // we don't have to look at the alignment if it is ALIGN_LEFT and
        // if the row is already larger then the permitted width as then
        // we force the LEFT_ALIGN'edness!
-       } else if (int(rit->width()) < workWidth()) {
+       } else if (int(row.width()) < textWidth()) {
                // is it block, flushleft or flushright?
                // set x how you need it
                int align;
-               if (pit->params().align() == LYX_ALIGN_LAYOUT) {
+               if (pit->params().align() == LYX_ALIGN_LAYOUT)
                        align = layout->align;
-               } else {
+               else
                        align = pit->params().align();
-               }
-               InsetOld * inset = 0;
-               // ERT insets should always be LEFT ALIGNED on screen
-               inset = pit->inInset();
-               if (inset && inset->owner() &&
-                       inset->owner()->lyxCode() == InsetOld::ERT_CODE)
+
+               // Display-style insets should always be on a centred row
+               // The test on pit->size() is to catch zero-size pars, which
+               // would trigger the assert in Paragraph::getInset().
+               //inset = pit->size() ? pit->getInset(row.pos()) : 0;
+               if (!pit->empty()
+                   && pit->isInset(row.pos())
+                   && pit->getInset(row.pos())->display())
                {
-                       align = LYX_ALIGN_LEFT;
+                       align = LYX_ALIGN_CENTER;
                }
 
                switch (align) {
-           case LYX_ALIGN_BLOCK:
-               {
-                       int const ns = numberOfSeparators(*pit, rit);
-                       RowList::iterator next_row = boost::next(rit);
+               case LYX_ALIGN_BLOCK: {
+                       int const ns = numberOfSeparators(*pit, row);
+                       bool disp_inset = false;
+                       if (row.endpos() < pit->size()) {
+                               InsetBase * in = pit->getInset(row.endpos());
+                               if (in)
+                                       disp_inset = in->display();
+                       }
+                       // If we have separators, this is not the last row of a
+                       // par, does not end in newline, and is not row above a
+                       // display inset... then stretch it
                        if (ns
-                               && next_row != pit->rows.end()
-                               && !pit->isNewline(next_row->pos() - 1)
+                           && row.endpos() < pit->size()
+                           && !pit->isNewline(row.endpos() - 1)
+                           && !disp_inset
                                ) {
-                                       fill_separator = w / ns;
+                               fill_separator = w / ns;
                        } else if (is_rtl) {
                                x += w;
                        }
                        break;
-           }
-           case LYX_ALIGN_RIGHT:
+               }
+               case LYX_ALIGN_RIGHT:
                        x += w;
                        break;
-           case LYX_ALIGN_CENTER:
+               case LYX_ALIGN_CENTER:
                        x += w / 2;
                        break;
                }
        }
 
-       computeBidiTables(pit, *bv()->buffer(), rit);
+       bidi.computeTables(*pit, *bv()->buffer(), row);
        if (is_rtl) {
-               pos_type body_pos = pit->beginningOfBody();
-               pos_type last = lastPos(*pit, rit);
+               pos_type body_pos = pit->beginOfBody();
+               pos_type end = row.endpos();
 
-               if (body_pos > 0 &&
-                               (body_pos - 1 > last ||
-                                !pit->isLineSeparator(body_pos - 1))) {
+               if (body_pos > 0
+                   && (body_pos > end || !pit->isLineSeparator(body_pos - 1)))
+               {
                        x += font_metrics::width(layout->labelsep, getLabelFont(pit));
-                       if (body_pos - 1 <= last)
+                       if (body_pos <= end)
                                x += fill_label_hfill;
                }
        }
 
-       rit->fill_hfill(fill_hfill);
-       rit->fill_label_hfill(fill_label_hfill);
-       rit->fill_separator(fill_separator);
-       rit->x(x);
+       row.fill_hfill(fill_hfill);
+       row.fill_label_hfill(fill_label_hfill);
+       row.fill_separator(fill_separator);
+       row.x(x);
 }
 
 
-// important for the screen
-
-
 // the cursor set functions have a special mechanism. When they
 // realize, that you left an empty paragraph, they will delete it.
-// They also delete the corresponding row
 
-void LyXText::cursorRightOneWord()
+void LyXText::cursorRightOneWord(LCursor & cur)
 {
-       ::cursorRightOneWord(*this, cursor, ownerParagraphs());
-       setCursor(cursorPar(), cursor.pos());
+       BOOST_ASSERT(this == cur.text());
+       if (cur.pos() == cur.lastpos() && cur.par() != cur.lastpar()) {
+               ++cur.par();
+               cur.pos() = 0;
+       } else {
+               // Skip through initial nonword stuff.
+               // Treat floats and insets as words.
+               while (cur.pos() != cur.lastpos() && !cur.paragraph().isWord(cur.pos()))
+                       ++cur.pos();
+               // Advance through word.
+               while (cur.pos() != cur.lastpos() && cur.paragraph().isWord(cur.pos()))
+                       ++cur.pos();
+       }
+       setCursor(cur, cur.par(), cur.pos());
 }
 
 
-// Skip initial whitespace at end of word and move cursor to *start*
-// of prior word, not to end of next prior word.
-void LyXText::cursorLeftOneWord()
+void LyXText::cursorLeftOneWord(LCursor & cur)
 {
-       LyXCursor tmpcursor = cursor;
-       ::cursorLeftOneWord(*this, tmpcursor, ownerParagraphs());
-       setCursor(getPar(tmpcursor), tmpcursor.pos());
+       BOOST_ASSERT(this == cur.text());
+       if (cur.pos() == 0 && cur.par() != 0) {
+               --cur.par();
+               cur.pos() = cur.lastpos();
+       } else { 
+               // Skip through initial nonword stuff.
+               // Treat floats and insets as words.
+               while (cur.pos() != 0 && !cur.paragraph().isWord(cur.pos() - 1))
+                       --cur.pos();
+               // Advance through word.
+               while (cur.pos() != 0 && cur.paragraph().isWord(cur.pos() - 1))
+                       --cur.pos();
+       }
+       setCursor(cur, cur.par(), cur.pos());
 }
 
 
-void LyXText::selectWord(word_location loc)
+void LyXText::selectWord(LCursor & cur, word_location loc)
 {
-       LyXCursor from = cursor;
-       LyXCursor to;
-       ::getWord(*this, from, to, loc, ownerParagraphs());
-       if (cursor != from)
-               setCursor(from.par(), from.pos());
+       BOOST_ASSERT(this == cur.text());
+       CursorSlice from = cur.current();
+       CursorSlice to = cur.current();
+       getWord(from, to, loc);
+       if (cur.current() != from)
+               setCursor(cur, from.par(), from.pos());
        if (to == from)
                return;
-       selection.cursor = cursor;
-       setCursor(to.par(), to.pos());
-       setSelection();
+       cur.resetAnchor();
+       setCursor(cur, to.par(), to.pos());
+       cur.setSelection();
 }
 
 
 // Select the word currently under the cursor when no
 // selection is currently set
-bool LyXText::selectWordWhenUnderCursor(word_location loc)
+bool LyXText::selectWordWhenUnderCursor(LCursor & cur, word_location loc)
 {
-       if (!selection.set()) {
-               selectWord(loc);
-               return selection.set();
-       }
-       return false;
+       BOOST_ASSERT(this == cur.text());
+       if (cur.selection())
+               return false;
+       selectWord(cur, loc);
+       return cur.selection();
 }
 
 
-void LyXText::acceptChange()
+void LyXText::acceptChange(LCursor & cur)
 {
-       if (!selection.set() && cursorPar()->size())
+       BOOST_ASSERT(this == cur.text());
+       if (!cur.selection() && cur.lastpos() != 0)
                return;
 
-       if (selection.start.par() == selection.end.par()) {
-               LyXCursor & startc = selection.start;
-               LyXCursor & endc = selection.end;
-               recordUndo(bv(), Undo::INSERT, getPar(startc));
+       CursorSlice const & startc = cur.selBegin();
+       CursorSlice const & endc = cur.selEnd();
+       if (startc.par() == endc.par()) {
+               recordUndoSelection(cur, Undo::INSERT);
                getPar(startc)->acceptChange(startc.pos(), endc.pos());
                finishUndo();
-               clearSelection();
+               cur.clearSelection();
                redoParagraph(getPar(startc));
-               setCursorIntern(startc.par(), 0);
+               setCursorIntern(cur, startc.par(), 0);
        }
 #warning handle multi par selection
 }
 
 
-void LyXText::rejectChange()
+void LyXText::rejectChange(LCursor & cur)
 {
-       if (!selection.set() && cursorPar()->size())
+       BOOST_ASSERT(this == cur.text());
+       if (!cur.selection() && cur.lastpos() != 0)
                return;
 
-       if (selection.start.par() == selection.end.par()) {
-               LyXCursor & startc = selection.start;
-               LyXCursor & endc = selection.end;
-               recordUndo(bv(), Undo::INSERT, getPar(startc));
+       CursorSlice const & startc = cur.selBegin();
+       CursorSlice const & endc = cur.selEnd();
+       if (startc.par() == endc.par()) {
+               recordUndoSelection(cur, Undo::INSERT);
                getPar(startc)->rejectChange(startc.pos(), endc.pos());
                finishUndo();
-               clearSelection();
+               cur.clearSelection();
                redoParagraph(getPar(startc));
-               setCursorIntern(startc.par(), 0);
+               setCursorIntern(cur, startc.par(), 0);
        }
 #warning handle multi par selection
 }
 
 
-// This function is only used by the spellchecker for NextWord().
-// It doesn't handle LYX_ACCENTs and probably never will.
-WordLangTuple const LyXText::selectNextWordToSpellcheck(float & value)
-{
-       if (the_locking_inset) {
-               WordLangTuple word = the_locking_inset->selectNextWordToSpellcheck(bv(), value);
-               if (!word.word().empty()) {
-                       value += float(cursor.y());
-                       value /= float(height);
-                       return word;
-               }
-               // we have to go on checking so move cursor to the next char
-               if (cursor.pos() == cursorPar()->size()) {
-                       if (cursor.par() + 1 == int(ownerParagraphs().size()))
-                               return word;
-                       cursor.par(cursor.par() + 1);
-                       cursor.pos(0);
-               } else
-                               cursor.pos(cursor.pos() + 1);
-       }
-       int const tmppar = cursor.par();
-
-       // If this is not the very first word, skip rest of
-       // current word because we are probably in the middle
-       // of a word if there is text here.
-       if (cursor.pos() || cursor.par() != 0) {
-               while (cursor.pos() < cursorPar()->size()
-                      && cursorPar()->isLetter(cursor.pos()))
-                       cursor.pos(cursor.pos() + 1);
-       }
-
-       // Now, skip until we have real text (will jump paragraphs)
-       while (true) {
-               ParagraphList::iterator cpit = cursorPar();
-               pos_type const cpos = cursor.pos();
-
-               if (cpos == cpit->size()) {
-                       if (cursor.par() + 1 != int(ownerParagraphs().size())) {
-                               cursor.par(cursor.par() + 1);
-                               cursor.pos(0);
-                               continue;
-                       }
-                       break;
-               }
-
-               bool const is_good_inset = cpit->isInset(cpos)
-                       && cpit->getInset(cpos)->allowSpellcheck();
-
-               if (!isDeletedText(*cpit, cpos)
-                   && (is_good_inset || cpit->isLetter(cpos)))
-                       break;
-
-               cursor.pos(cpos + 1);
-       }
-
-       // now check if we hit an inset so it has to be a inset containing text!
-       if (cursor.pos() < cursorPar()->size() &&
-           cursorPar()->isInset(cursor.pos())) {
-               // lock the inset!
-               FuncRequest cmd(bv(), LFUN_INSET_EDIT, "left");
-               cursorPar()->getInset(cursor.pos())->localDispatch(cmd);
-               // now call us again to do the above trick
-               // but obviously we have to start from down below ;)
-               return bv()->text->selectNextWordToSpellcheck(value);
-       }
-
-       // Update the value if we changed paragraphs
-       if (cursor.par() != tmppar) {
-               setCursor(cursor.par(), cursor.pos());
-               value = float(cursor.y())/float(height);
-       }
-
-       // Start the selection from here
-       selection.cursor = cursor;
-
-       string lang_code = getFont(cursorPar(), cursor.pos()).language()->code();
-       // and find the end of the word (insets like optional hyphens
-       // and ligature break are part of a word)
-       while (cursor.pos() < cursorPar()->size()
-              && cursorPar()->isLetter(cursor.pos())
-              && !isDeletedText(*cursorPar(), cursor.pos()))
-               cursor.pos(cursor.pos() + 1);
-
-       // Finally, we copy the word to a string and return it
-       string str;
-       if (selection.cursor.pos() < cursor.pos()) {
-               pos_type i;
-               for (i = selection.cursor.pos(); i < cursor.pos(); ++i) {
-                       if (!cursorPar()->isInset(i))
-                               str += cursorPar()->getChar(i);
-               }
-       }
-       return WordLangTuple(str, lang_code);
-}
-
-
-// This one is also only for the spellchecker
-void LyXText::selectSelectedWord()
-{
-       if (the_locking_inset) {
-               the_locking_inset->selectSelectedWord(bv());
-               return;
-       }
-       // move cursor to the beginning
-       setCursor(selection.cursor.par(), selection.cursor.pos());
-
-       // set the sel cursor
-       selection.cursor = cursor;
-
-       // now find the end of the word
-       while (cursor.pos() < cursorPar()->size()
-              && cursorPar()->isLetter(cursor.pos()))
-               cursor.pos(cursor.pos() + 1);
-
-       setCursor(cursorPar(), cursor.pos());
-
-       // finally set the selection
-       setSelection();
-}
-
-
 // Delete from cursor up to the end of the current or next word.
-void LyXText::deleteWordForward()
+void LyXText::deleteWordForward(LCursor & cur)
 {
-       if (cursorPar()->empty())
-               cursorRight(bv());
+       BOOST_ASSERT(this == cur.text());
+       if (cur.lastpos() == 0)
+               cursorRight(cur);
        else {
-               LyXCursor tmpcursor = cursor;
-               selection.set(true); // to avoid deletion
-               cursorRightOneWord();
-               setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
-               selection.cursor = cursor;
-               cursor = tmpcursor;
-               setSelection();
-
-               // Great, CutSelection() gets rid of multiple spaces.
-               cutSelection(true, false);
+               cur.resetAnchor();
+               cur.selection() = true;
+               cursorRightOneWord(cur);
+               cur.setSelection();
+               cutSelection(cur, true, false);
        }
 }
 
 
 // Delete from cursor to start of current or prior word.
-void LyXText::deleteWordBackward()
+void LyXText::deleteWordBackward(LCursor & cur)
 {
-       if (cursorPar()->empty())
-               cursorLeft(bv());
+       BOOST_ASSERT(this == cur.text());
+       if (cur.lastpos() == 0)
+               cursorLeft(cur);
        else {
-               LyXCursor tmpcursor = cursor;
-               selection.set(true); // to avoid deletion
-               cursorLeftOneWord();
-               setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
-               selection.cursor = cursor;
-               cursor = tmpcursor;
-               setSelection();
-               cutSelection(true, false);
+               cur.resetAnchor();
+               cur.selection() = true;
+               cursorLeftOneWord(cur);
+               cur.setSelection();
+               cutSelection(cur, true, false);
        }
 }
 
 
 // Kill to end of line.
-void LyXText::deleteLineForward()
+void LyXText::deleteLineForward(LCursor & cur)
 {
-       if (cursorPar()->empty())
+       BOOST_ASSERT(this == cur.text());
+       if (cur.lastpos() == 0) {
                // Paragraph is empty, so we just go to the right
-               cursorRight(bv());
-       else {
-               LyXCursor tmpcursor = cursor;
-               // We can't store the row over a regular setCursor
-               // so we set it to 0 and reset it afterwards.
-               selection.set(true); // to avoid deletion
-               cursorEnd();
-               setCursor(tmpcursor, tmpcursor.par(), tmpcursor.pos());
-               selection.cursor = cursor;
-               cursor = tmpcursor;
-               setSelection();
+               cursorRight(cur);
+       } else {
+               cur.resetAnchor();
+               cur.selection() = true; // to avoid deletion
+               cursorEnd(cur);
+               cur.setSelection();
                // What is this test for ??? (JMarc)
-               if (!selection.set()) {
-                       deleteWordForward();
-               } else {
-                       cutSelection(true, false);
-               }
+               if (!cur.selection())
+                       deleteWordForward(cur);
+               else
+                       cutSelection(cur, true, false);
        }
 }
 
 
-void LyXText::changeCase(LyXText::TextCase action)
+void LyXText::changeCase(LCursor & cur, LyXText::TextCase action)
 {
-       LyXCursor from;
-       LyXCursor to;
+       BOOST_ASSERT(this == cur.text());
+       CursorSlice from;
+       CursorSlice to;
 
-       if (selection.set()) {
-               from = selection.start;
-               to = selection.end;
+       if (cur.selection()) {
+               from = cur.selBegin();
+               to = cur.selEnd();
        } else {
-               from = cursor;
-               ::getWord(*this, from, to, lyx::PARTIAL_WORD, ownerParagraphs());
-               setCursor(to.par(), to.pos() + 1);
+               from = cursor();
+               getWord(from, to, lyx::PARTIAL_WORD);
+               setCursor(cur, to.par(), to.pos() + 1);
        }
 
-       recordUndo(bv(), Undo::ATOMIC, getPar(from), getPar(to));
+       recordUndoSelection(cur);
 
        pos_type pos = from.pos();
        int par = from.par();
 
-       while (par != int(ownerParagraphs().size()) &&
+       while (par != int(paragraphs().size()) &&
               (pos != to.pos() || par != to.par())) {
                ParagraphList::iterator pit = getPar(par);
                if (pos == pit->size()) {
@@ -1832,100 +1348,62 @@ void LyXText::changeCase(LyXText::TextCase action)
 }
 
 
-void LyXText::Delete()
+void LyXText::Delete(LCursor & cur)
 {
-       // this is a very easy implementation
-
-       LyXCursor old_cursor = cursor;
-       int const old_cur_par_id = cursorPar()->id();
-       int const old_cur_par_prev_id =
-               old_cursor.par() ? getPar(old_cursor.par() - 1)->id() : -1;
-
-       // just move to the right
-       cursorRight(bv());
-
-       // CHECK Look at the comment here.
-       // This check is not very good...
-       // The cursorRightIntern calls DeleteEmptyParagraphMechanism
-       // and that can very well delete the par or par->previous in
-       // old_cursor. Will a solution where we compare paragraph id's
-       //work better?
-       int iid = cursor.par() ? getPar(cursor.par() - 1)->id() : -1;
-       if (iid == old_cur_par_prev_id && cursorPar()->id() != old_cur_par_id) {
-               // delete-empty-paragraph-mechanism has done it
-               return;
-       }
-
-       // if you had success make a backspace
-       if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
-               LyXCursor tmpcursor = cursor;
-               // to make sure undo gets the right cursor position
-               cursor = old_cursor;
-               recordUndo(bv(), Undo::DELETE, cursorPar());
-               cursor = tmpcursor;
-               backspace();
+       BOOST_ASSERT(this == cur.text());
+       // just move to the right, if we had success make a backspace
+       CursorSlice sl = cur.current();
+       cursorRight(cur);
+       if (sl == cur.current()) {
+               recordUndo(cur, Undo::DELETE, cur.par(), max(0, cur.par() - 1));
+               backspace(cur);
        }
 }
 
 
-void LyXText::backspace()
+void LyXText::backspace(LCursor & cur)
 {
-       // Get the font that is used to calculate the baselineskip
-       ParagraphList::iterator pit = cursorPar();
-       pos_type lastpos = pit->size();
-
-       if (cursor.pos() == 0) {
-               // The cursor is at the beginning of a paragraph,
-               // so the the backspace will collapse two paragraphs into one.
+       BOOST_ASSERT(this == cur.text());
+       if (cur.pos() == 0) {
+               // The cursor is at the beginning of a paragraph, so
+               // the the backspace will collapse two paragraphs into
+               // one.
 
                // but it's not allowed unless it's new
-               if (pit->isChangeEdited(0, pit->size()))
+               Paragraph & par = cur.paragraph();
+               if (par.isChangeEdited(0, par.size()))
                        return;
 
                // we may paste some paragraphs
 
                // is it an empty paragraph?
-
-               if (lastpos == 0 || (lastpos == 1 && pit->isSeparator(0))) {
+               pos_type lastpos = cur.lastpos();
+               if (lastpos == 0 || (lastpos == 1 && par.isSeparator(0))) {
                        // This is an empty paragraph and we delete it just
                        // by moving the cursor one step
                        // left and let the DeleteEmptyParagraphMechanism
                        // handle the actual deletion of the paragraph.
 
-                       if (cursor.par()) {
-                               ParagraphList::iterator tmppit = getPar(cursor.par() - 1);
-                               if (cursorPar()->layout() == tmppit->layout()
-                                   && cursorPar()->getAlign() == tmppit->getAlign()) {
-                                       // Inherit bottom DTD from the paragraph below.
-                                       // (the one we are deleting)
-                                       tmppit->params().lineBottom(cursorPar()->params().lineBottom());
-                                       tmppit->params().spaceBottom(cursorPar()->params().spaceBottom());
-                                       tmppit->params().pagebreakBottom(cursorPar()->params().pagebreakBottom());
-                               }
-
-                               cursorLeft(bv());
-
+                       if (cur.par() != 0) {
+                               cursorLeft(cur);
                                // the layout things can change the height of a row !
-                               redoParagraph();
+                               redoParagraph(cur);
                                return;
                        }
                }
 
-               if (cursorPar() != ownerParagraphs().begin()) {
-                       recordUndo(bv(), Undo::DELETE,
-                               boost::prior(cursorPar()),
-                               cursorPar());
-               }
+               if (cur.par() != 0)
+                       recordUndo(cur, Undo::DELETE, cur.par() - 1);
 
-               ParagraphList::iterator tmppit = cursorPar();
+               ParagraphList::iterator tmppit = getPar(cur.par());
                // We used to do cursorLeftIntern() here, but it is
                // not a good idea since it triggers the auto-delete
                // mechanism. So we do a cursorLeftIntern()-lite,
                // without the dreaded mechanism. (JMarc)
-               if (cursor.par() != 0) {
+               if (cur.par() != 0) {
                        // steps into the above paragraph.
-                       setCursorIntern(cursor.par() - 1,
-                                       getPar(cursor.par() - 1)->size(),
+                       setCursorIntern(cur, cur.par() - 1,
+                                       getPar(cur.par() - 1)->size(),
                                        false);
                }
 
@@ -1936,50 +1414,51 @@ void LyXText::backspace()
                Buffer & buf = *bv()->buffer();
                BufferParams const & bufparams = buf.params();
                LyXTextClass const & tclass = bufparams.getLyXTextClass();
+               ParagraphList::iterator const cpit = getPar(cur.par());
 
-               if (cursorPar() != tmppit
-                   && (cursorPar()->layout() == tmppit->layout()
-                       || tmppit->layout() == tclass.defaultLayout())
-                   && cursorPar()->getAlign() == tmppit->getAlign()) {
-                       mergeParagraph(bufparams,
-                                      buf.paragraphs(), cursorPar());
+               if (cpit != tmppit
+                   && (cpit->layout() == tmppit->layout()
+                       || tmppit->layout() == tclass.defaultLayout())
+                   && cpit->getAlign() == tmppit->getAlign()) {
+                       mergeParagraph(bufparams, buf.paragraphs(), cpit);
 
-                       if (cursor.pos() && cursorPar()->isSeparator(cursor.pos() - 1))
-                               cursor.pos(cursor.pos() - 1);
+                       if (cur.pos() != 0 && cpit->isSeparator(cur.pos() - 1))
+                               --cur.pos();
 
-                       // the row may have changed, block, hfills etc.
+                       // the counters may have changed
                        updateCounters();
-                       setCursor(cursor.par(), cursor.pos(), false);
+                       setCursor(cur, cur.par(), cur.pos(), false);
                }
        } else {
                // this is the code for a normal backspace, not pasting
                // any paragraphs
-               recordUndo(bv(), Undo::DELETE, cursorPar());
+               recordUndo(cur, Undo::DELETE);
                // We used to do cursorLeftIntern() here, but it is
                // not a good idea since it triggers the auto-delete
                // mechanism. So we do a cursorLeftIntern()-lite,
                // without the dreaded mechanism. (JMarc)
-               setCursorIntern(cursor.par(), cursor.pos() - 1,
-                               false, cursor.boundary());
-               cursorPar()->erase(cursor.pos());
+               setCursorIntern(cur, cur.par(), cur.pos() - 1,
+                               false, cur.boundary());
+               cur.paragraph().erase(cur.pos());
        }
 
-       lastpos = cursorPar()->size();
-       if (cursor.pos() == lastpos)
-               setCurrentFont();
+       if (cur.pos() == cur.lastpos())
+               setCurrentFont(cur);
 
-       redoParagraph();
-       setCursor(cursor.par(), cursor.pos(), false, !cursor.boundary());
+       redoParagraph(cur);
+       setCursor(cur, cur.par(), cur.pos(), false, cur.boundary());
 }
 
 
 ParagraphList::iterator LyXText::cursorPar() const
 {
-       return getPar(cursor.par());
+       //lyxerr << "### cursorPar: cursor: " << bv()->cursor() << endl;
+       //lyxerr << "xxx cursorPar: cursor: " << cursor() << endl;
+       return getPar(cursor().par());
 }
 
 
-ParagraphList::iterator LyXText::getPar(LyXCursor const & cur) const
+ParagraphList::iterator LyXText::getPar(CursorSlice const & cur) const
 {
        return getPar(cur.par());
 }
@@ -1987,59 +1466,46 @@ ParagraphList::iterator LyXText::getPar(LyXCursor const & cur) const
 
 ParagraphList::iterator LyXText::getPar(int par) const
 {
-       ParagraphList::iterator pit = ownerParagraphs().begin();
-       std::advance(pit, par);
+       //lyxerr << "getPar: " << par << " from " << paragraphs().size() << endl;
+       BOOST_ASSERT(par >= 0);
+       BOOST_ASSERT(par < int(paragraphs().size()));
+       ParagraphList::iterator pit = paragraphs().begin();
+       advance(pit, par);
        return pit;
 }
 
 
-
-RowList::iterator LyXText::cursorRow() const
-{
-       return getRow(cursorPar(), cursor.pos());
-}
-
-
-RowList::iterator LyXText::getRow(LyXCursor const & cur) const
-{
-       return getRow(getPar(cur), cur.pos());
-}
-
-
+// y is relative to this LyXText's top
 RowList::iterator
-LyXText::getRow(ParagraphList::iterator pit, pos_type pos) const
+LyXText::getRowNearY(int y, ParagraphList::iterator & pit) const
 {
-       RowList::iterator rit = boost::prior(pit->rows.end());
-       RowList::iterator const begin = pit->rows.begin();
+       BOOST_ASSERT(!paragraphs().empty());
+       BOOST_ASSERT(!paragraphs().begin()->rows.empty());
+#if 1
+       ParagraphList::iterator const
+               pend = boost::prior(paragraphs().end());
+       pit = paragraphs().begin();
+       while (int(pit->y + pit->height) < y && pit != pend)
+               ++pit;
 
-       while (rit != begin && rit->pos() > pos)
+       RowList::iterator rit = pit->rows.end();
+       RowList::iterator const rbegin = pit->rows.begin();
+       do {
                --rit;
+       } while (rit != rbegin && int(pit->y + rit->y_offset()) > y);
 
        return rit;
-}
-
-
-// returns pointer to some fancy row 'below' specified row
-RowList::iterator LyXText::cursorIRow() const
-{
-       return getRow(cursorPar(), cursor.pos());
-}
-
-
-RowList::iterator LyXText::getRowNearY(int y,
-       ParagraphList::iterator & pit) const
-{
-       //lyxerr << "getRowNearY: y " << y << endl;
-
-       pit = boost::prior(ownerParagraphs().end());
+#else
+       pit = boost::prior(paragraphs().end());
 
        RowList::iterator rit = lastRow();
        RowList::iterator rbegin = firstRow();
 
-       while (rit != rbegin && static_cast<int>(rit->y()) > y)
+       while (rit != rbegin && int(pit->y + rit->y_offset()) > y)
                previousRow(pit, rit);
 
        return rit;
+#endif
 }
 
 
@@ -2051,7 +1517,7 @@ int LyXText::getDepth() const
 
 RowList::iterator LyXText::firstRow() const
 {
-       return ownerParagraphs().front().rows.begin();
+       return paragraphs().front().rows.begin();
 }
 
 
@@ -2063,7 +1529,7 @@ RowList::iterator LyXText::lastRow() const
 
 RowList::iterator LyXText::endRow() const
 {
-       return ownerParagraphs().back().rows.end();
+       return paragraphs().back().rows.end();
 }
 
 
@@ -2073,7 +1539,7 @@ void LyXText::nextRow(ParagraphList::iterator & pit,
        ++rit;
        if (rit == pit->rows.end()) {
                ++pit;
-               if (pit == ownerParagraphs().end())
+               if (pit == paragraphs().end())
                        --pit;
                else
                        rit = pit->rows.begin();
@@ -2087,44 +1553,517 @@ void LyXText::previousRow(ParagraphList::iterator & pit,
        if (rit != pit->rows.begin())
                --rit;
        else {
-               BOOST_ASSERT(pit != ownerParagraphs().begin());
+               BOOST_ASSERT(pit != paragraphs().begin());
                --pit;
                rit = boost::prior(pit->rows.end());
        }
 }
 
 
-string LyXText::selectionAsString(Buffer const & buffer, bool label) const
+int LyXText::parOffset(ParagraphList::iterator pit) const
 {
-       if (!selection.set())
-               return string();
+       return distance(paragraphs().begin(), pit);
+}
 
-       // should be const ...
-       ParagraphList::iterator startpit = getPar(selection.start);
-       ParagraphList::iterator endpit = getPar(selection.end);
-       size_t const startpos = selection.start.pos();
-       size_t const endpos = selection.end.pos();
 
-       if (startpit == endpit)
-               return startpit->asString(buffer, startpos, endpos, label);
+void LyXText::redoParagraphInternal(ParagraphList::iterator pit)
+{
+       // remove rows of paragraph, keep track of height changes
+       height -= pit->height;
+
+       // clear old data
+       pit->rows.clear();
+       pit->height = 0;
+       pit->width = 0;
+
+       // redo insets
+       InsetList::iterator ii = pit->insetlist.begin();
+       InsetList::iterator iend = pit->insetlist.end();
+       for (; ii != iend; ++ii) {
+               Dimension dim;
+               int const w = textWidth() - leftMargin(pit) - rightMargin(*pit);
+               MetricsInfo mi(bv(), getFont(pit, ii->pos), w);
+               ii->inset->metrics(mi, dim);
+       }
+
+       // rebreak the paragraph
+       pit->setBeginOfBody();
+       pos_type z = 0;
+       do {
+               Row row(z);
+               rowBreakPoint(pit, row);
+               setRowWidth(pit, row);
+               prepareToPrint(pit, row);
+               setHeightOfRow(pit, row);
+               row.y_offset(pit->height);
+               pit->rows.push_back(row);
+               pit->width = std::max(pit->width, row.width());
+               pit->height += row.height();
+               z = row.endpos();
+       } while (z < pit->size());
+
+       height += pit->height;
+       //lyxerr << "redoParagraph: " << pit->rows.size() << " rows\n";
+}
 
-       // First paragraph in selection
-       string result =
-               startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
 
-       // The paragraphs in between (if any)
-       ParagraphList::iterator pit = startpit;
-       for (++pit; pit != endpit; ++pit)
-               result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
+void LyXText::redoParagraphs(ParagraphList::iterator pit,
+  ParagraphList::iterator end)
+{
+       for ( ; pit != end; ++pit)
+               redoParagraphInternal(pit);
+       updateParPositions();
+}
 
-       // Last paragraph in selection
-       result += endpit->asString(buffer, 0, endpos, label);
 
-       return result;
+void LyXText::redoParagraph(ParagraphList::iterator pit)
+{
+       redoParagraphInternal(pit);
+       updateParPositions();
 }
 
 
-int LyXText::parOffset(ParagraphList::iterator pit) const
+void LyXText::fullRebreak()
+{
+       redoParagraphs(paragraphs().begin(), paragraphs().end());
+       bv()->cursor().resetAnchor();
+}
+
+
+void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
+{
+       //BOOST_ASSERT(mi.base.textwidth);
+       if (mi.base.textwidth)
+               textwidth_ = mi.base.textwidth;
+       //lyxerr << "LyXText::metrics: width: " << mi.base.textwidth
+       //      << " textWidth: " << textWidth() << "\nfont: " << mi.base.font << endl;
+
+       // Rebuild row cache. This recomputes height as well.
+       redoParagraphs(paragraphs().begin(), paragraphs().end());
+
+       width = maxParagraphWidth(paragraphs());
+
+       // final dimension
+       dim.asc = firstRow()->ascent_of_text();
+       dim.des = height - dim.asc;
+       dim.wid = width;
+}
+
+
+// only used for inset right now. should also be used for main text
+void LyXText::draw(PainterInfo & pi, int x, int y) const
+{
+       xo_ = x;
+       yo_ = y;
+       paintTextInset(*this, pi, x, y);
+}
+
+
+// only used for inset right now. should also be used for main text
+void LyXText::drawSelection(PainterInfo &, int, int) const
+{
+       //lyxerr << "LyXText::drawSelection at " << x << " " << y << endl;
+}
+
+
+bool LyXText::isLastRow(ParagraphList::iterator pit, Row const & row) const
+{
+       return row.endpos() >= pit->size()
+              && boost::next(pit) == paragraphs().end();
+}
+
+
+bool LyXText::isFirstRow(ParagraphList::iterator pit, Row const & row) const
 {
-       return std::distance(ownerParagraphs().begin(), pit);
+       return row.pos() == 0 && pit == paragraphs().begin();
+}
+
+
+void LyXText::getWord(CursorSlice & from, CursorSlice & to,
+       word_location const loc)
+{
+       Paragraph & from_par = *getPar(from);
+       switch (loc) {
+       case lyx::WHOLE_WORD_STRICT:
+               if (from.pos() == 0 || from.pos() == from_par.size()
+                   || from_par.isSeparator(from.pos())
+                   || from_par.isKomma(from.pos())
+                   || from_par.isNewline(from.pos())
+                   || from_par.isSeparator(from.pos() - 1)
+                   || from_par.isKomma(from.pos() - 1)
+                   || from_par.isNewline(from.pos() - 1)) {
+                       to = from;
+                       return;
+               }
+               // no break here, we go to the next
+
+       case lyx::WHOLE_WORD:
+               // Move cursor to the beginning, when not already there.
+               if (from.pos() && !from_par.isSeparator(from.pos() - 1)
+                   && !(from_par.isKomma(from.pos() - 1)
+                        || from_par.isNewline(from.pos() - 1)))
+                       cursorLeftOneWord(bv()->cursor());
+               break;
+       case lyx::PREVIOUS_WORD:
+               // always move the cursor to the beginning of previous word
+               cursorLeftOneWord(bv()->cursor());
+               break;
+       case lyx::NEXT_WORD:
+               lyxerr << "LyXText::getWord: NEXT_WORD not implemented yet"
+                      << endl;
+               break;
+       case lyx::PARTIAL_WORD:
+               break;
+       }
+       to = from;
+       Paragraph & to_par = *getPar(to);
+       while (to.pos() < to_par.size()
+              && !to_par.isSeparator(to.pos())
+              && !to_par.isKomma(to.pos())
+              && !to_par.isNewline(to.pos())
+              && !to_par.isHfill(to.pos())
+              && !to_par.isInset(to.pos()))
+       {
+               ++to.pos();
+       }
+}
+
+
+void LyXText::write(Buffer const & buf, std::ostream & os) const
+{
+       ParagraphList::const_iterator pit = paragraphs().begin();
+       ParagraphList::const_iterator end = paragraphs().end();
+       Paragraph::depth_type dth = 0;
+       for (; pit != end; ++pit)
+               pit->write(buf, os, buf.params(), dth);
+}
+
+
+bool LyXText::read(Buffer const & buf, LyXLex & lex)
+{
+       static Change current_change;
+
+       bool the_end_read = false;
+       ParagraphList::iterator pit = paragraphs().begin();
+       Paragraph::depth_type depth = 0;
+
+       while (lex.isOK()) {
+               lex.nextToken();
+               string token = lex.getString();
+
+               if (token.empty())
+                       continue;
+
+               if (in_inset_) {
+
+                       if (token == "\\end_inset") {
+                               the_end_read = true;
+                               break;
+                       }
+
+                       if (token == "\\end_document") {
+                               lex.printError("\\end_document read in inset! Error in document!");
+                               return false;
+                       }
+
+               } else {
+
+                       if (token == "\\end_document") {
+                               the_end_read = true;
+                               continue;
+                       }
+
+               }
+
+               // FIXME: ugly.
+               int unknown = 0;
+
+               if (token == "\\begin_layout") {
+                       lex.pushToken(token);
+
+                       Paragraph par;
+                       par.params().depth(depth);
+                       if (buf.params().tracking_changes)
+                               par.trackChanges();
+                       LyXFont f(LyXFont::ALL_INHERIT, buf.params().language);
+                       par.setFont(0, f);
+
+                       // insert after
+                       if (pit != paragraphs().end())
+                               ++pit;
+
+                       pit = paragraphs().insert(pit, par);
+
+                       // FIXME: goddamn InsetTabular makes us pass a Buffer
+                       // not BufferParams
+                       ::readParagraph(buf, *pit, lex);
+
+               } else if (token == "\\begin_deeper") {
+                       ++depth;
+               } else if (token == "\\end_deeper") {
+                       if (!depth) {
+                               lex.printError("\\end_deeper: " "depth is already null");
+                       } else {
+                               --depth;
+                       }
+               } else {
+                       ++unknown;
+               }
+
+       }
+       return the_end_read;
+}
+
+
+int LyXText::ascent() const
+{
+       return firstRow()->ascent_of_text();
+}
+
+
+int LyXText::descent() const
+{
+       return height - firstRow()->ascent_of_text();
+}
+
+
+int LyXText::cursorX(CursorSlice const & cur) const
+{
+       ParagraphList::iterator pit = getPar(cur);
+       if (pit->rows.empty())
+               return xo_;
+       Row const & row         = *pit->getRow(cur.pos());
+       pos_type pos            = cur.pos();
+       pos_type cursor_vpos    = 0;
+       double x                = row.x();
+       double fill_separator   = row.fill_separator();
+       double fill_hfill       = row.fill_hfill();
+       double fill_label_hfill = row.fill_label_hfill();
+       pos_type const row_pos  = row.pos();
+       pos_type const end      = row.endpos();
+
+       if (end <= row_pos)
+               cursor_vpos = row_pos;
+       else if (pos >= end)
+               cursor_vpos = isRTL(*pit) ? row_pos : end;
+       else if (pos > row_pos && pos >= end)
+               // Place cursor after char at (logical) position pos - 1
+               cursor_vpos = (bidi.level(pos - 1) % 2 == 0)
+                       ? bidi.log2vis(pos - 1) + 1 : bidi.log2vis(pos - 1);
+       else
+               // Place cursor before char at (logical) position pos
+               cursor_vpos = (bidi.level(pos) % 2 == 0)
+                       ? bidi.log2vis(pos) : bidi.log2vis(pos) + 1;
+
+       pos_type body_pos = pit->beginOfBody();
+       if (body_pos > 0 &&
+           (body_pos > end || !pit->isLineSeparator(body_pos - 1)))
+               body_pos = 0;
+
+       for (pos_type vpos = row_pos; vpos < cursor_vpos; ++vpos) {
+               pos_type pos = bidi.vis2log(vpos);
+               if (body_pos > 0 && pos == body_pos - 1) {
+                       x += fill_label_hfill
+                               + font_metrics::width(pit->layout()->labelsep,
+                                                     getLabelFont(pit));
+                       if (pit->isLineSeparator(body_pos - 1))
+                               x -= singleWidth(pit, body_pos - 1);
+               }
+
+               if (hfillExpansion(*pit, row, pos)) {
+                       x += singleWidth(pit, pos);
+                       if (pos >= body_pos)
+                               x += fill_hfill;
+                       else
+                               x += fill_label_hfill;
+               } else if (pit->isSeparator(pos)) {
+                       x += singleWidth(pit, pos);
+                       if (pos >= body_pos)
+                               x += fill_separator;
+               } else
+                       x += singleWidth(pit, pos);
+       }
+       return xo_ + int(x);
+}
+
+
+int LyXText::cursorY(CursorSlice const & cur) const
+{
+       Paragraph & par = *getPar(cur);
+       Row & row = *par.getRow(cur.pos());
+       return yo_ + par.y + row.y_offset() + row.baseline();
+}
+
+
+CursorSlice & LyXText::cursor()
+{
+       //lyxerr << "# accessing slice " << findText(this) << endl;
+       if (this != bv()->cursor().text()) {
+               lyxerr << "cursor: " << bv()->cursor()
+                       << "\ntext: " << bv()->cursor().text() 
+                       << "\nthis: " << this << endl;
+               BOOST_ASSERT(false);
+       }
+       return bv()->cursor().current();
+}
+
+
+CursorSlice const & LyXText::cursor() const
+{
+       if (this != bv()->cursor().text()) {
+               lyxerr << "cursor: " << bv()->cursor()
+                       << "\ntext: " << bv()->cursor().text() 
+                       << "\nthis: " << this << endl;
+               BOOST_ASSERT(false);
+       }
+       return bv()->cursor().current();
+}
+
+
+void LyXText::replaceSelection(LCursor & cur)
+{
+       BOOST_ASSERT(this == cur.text());
+       if (cur.selection()) {
+               cutSelection(cur, true, false);
+               cur.update();
+       }
+}
+
+
+// Returns the current font and depth as a message.
+string LyXText::currentState(LCursor & cur)
+{
+       BOOST_ASSERT(this == cur.text());
+       Buffer * buffer = bv()->buffer();
+       Paragraph const & par = cur.paragraph();
+       std::ostringstream os;
+
+       bool const show_change = buffer->params().tracking_changes
+               && cur.pos() != cur.lastpos()
+               && par.lookupChange(cur.pos()) != Change::UNCHANGED;
+
+       if (show_change) {
+               Change change = par.lookupChangeFull(cur.pos());
+               Author const & a = buffer->params().authors().get(change.author);
+               os << _("Change: ") << a.name();
+               if (!a.email().empty())
+                       os << " (" << a.email() << ")";
+               if (change.changetime)
+                       os << _(" at ") << ctime(&change.changetime);
+               os << " : ";
+       }
+
+       // I think we should only show changes from the default
+       // font. (Asger)
+       LyXFont font = real_current_font;
+       font.reduce(buffer->params().getLyXTextClass().defaultfont());
+
+       // avoid _(...) re-entrance problem
+       string const s = font.stateText(&buffer->params());
+       os << bformat(_("Font: %1$s"), s);
+
+       // os << bformat(_("Font: %1$s"), font.stateText(&buffer->params));
+
+       // The paragraph depth
+       int depth = getDepth();
+       if (depth > 0)
+               os << bformat(_(", Depth: %1$s"), tostr(depth));
+
+       // The paragraph spacing, but only if different from
+       // buffer spacing.
+       Spacing const & spacing = par.params().spacing();
+       if (!spacing.isDefault()) {
+               os << _(", Spacing: ");
+               switch (spacing.getSpace()) {
+               case Spacing::Single:
+                       os << _("Single");
+                       break;
+               case Spacing::Onehalf:
+                       os << _("OneHalf");
+                       break;
+               case Spacing::Double:
+                       os << _("Double");
+                       break;
+               case Spacing::Other:
+                       os << _("Other (") << spacing.getValue() << ')';
+                       break;
+               case Spacing::Default:
+                       // should never happen, do nothing
+                       break;
+               }
+       }
+#ifdef DEVEL_VERSION
+       os << _(", Paragraph: ") << par.id();
+       os << _(", Position: ") << cur.pos();
+       Row & row = cur.textRow();
+       os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
+       os << _(", Inset: ");
+       InsetOld * inset = par.inInset();
+       if (inset)
+               os << inset << " owner: " << inset->owner();
+       else
+               os << -1;
+#endif
+       return os.str();
+}
+
+
+string LyXText::getPossibleLabel(LCursor & cur) const
+{
+       ParagraphList & plist = paragraphs();
+       ParagraphList::iterator pit = getPar(cur.par());
+
+       LyXLayout_ptr layout = pit->layout();
+
+       if (layout->latextype == LATEX_PARAGRAPH && pit != plist.begin()) {
+               ParagraphList::iterator pit2 = boost::prior(pit);
+
+               LyXLayout_ptr const & layout2 = pit2->layout();
+
+               if (layout2->latextype != LATEX_PARAGRAPH) {
+                       pit = pit2;
+                       layout = layout2;
+               }
+       }
+
+       string text = layout->latexname().substr(0, 3);
+       if (layout->latexname() == "theorem")
+               text = "thm"; // Create a correct prefix for prettyref
+
+       text += ':';
+       if (layout->latextype == LATEX_PARAGRAPH || lyxrc.label_init_length < 0)
+               text.erase();
+
+       string par_text = pit->asString(*cur.bv().buffer(), false);
+       for (int i = 0; i < lyxrc.label_init_length; ++i) {
+               if (par_text.empty())
+                       break;
+               string head;
+               par_text = split(par_text, head, ' ');
+               // Is it legal to use spaces in labels ?
+               if (i > 0)
+                       text += '-';
+               text += head;
+       }
+
+       return text;
+}
+
+
+int LyXText::dist(int x, int y) const
+{
+       int xx = 0;
+       int yy = 0;
+
+       if (x < xo_)
+               xx = xo_ - x;
+       else if (x > xo_ + width)
+               xx = x - xo_ - width;
+
+       if (y < yo_ - ascent())
+               yy = yo_ - ascent() - y;
+       else if (y > yo_ + descent())
+               yy = y - yo_ - descent();
+
+       return xx + yy;
 }