lyx_mirror/src/text.C

/* This file is part of
* ======================================================
* 
*           LyX, The Document Processor
* 	 
*	    Copyright (C) 1995 Matthias Ettrich
*           Copyright (C) 1995-1998 The LyX Team.
*
*======================================================*/

#include <config.h>
#include <cstdlib>
#include <cctype>

#ifdef __GNUG__
#pragma implementation "table.h"
#endif

#include "layout.h"
#include "lyxparagraph.h"
#include "lyxtext.h"
#include "support/textutils.h"
#include "lyx_gui_misc.h"
#include "lyxdraw.h"
#include "gettext.h"
#include "bufferparams.h"
#include "buffer.h"
#include "lyxscreen.h"
#include "minibuffer.h"
#include "debug.h"

static const int LYX_PAPER_MARGIN = 20;

extern int mono_video;
extern int reverse_video;
extern int fast_selection;
extern BufferView *current_view;
extern int UnlockInset(UpdatableInset* inset);

// ale070405
extern int bibitemMaxWidth(const class LyXFont &);

// dnaber 1999-02-02
extern MiniBuffer *minibuffer;

int LyXText::SingleWidth(LyXParagraph *par, int pos)
{
	char c = par->GetChar(pos);
	return SingleWidth(par, pos, c);
}


int LyXText::SingleWidth(LyXParagraph *par, int pos, char c)
{
	LyXFont font = GetFont(par, pos);

	// The most common case is handled first (Asger)
	if (IsPrintable(c)) {
		return font.width(c);

	} else if (IsHfillChar(c)) {
		return 3;	/* because of the representation
				 * as vertical lines */

	} else if (c == LYX_META_FOOTNOTE ||
		   c == LYX_META_MARGIN ||
		   c == LYX_META_FIG ||
		   c == LYX_META_TAB ||
		   c == LYX_META_WIDE_FIG ||
		   c == LYX_META_WIDE_TAB ||
		   c == LYX_META_ALGORITHM) 
	{
		string fs;
		switch (c) {
		case LYX_META_MARGIN:
			fs = "margin";
			break;
		case LYX_META_FIG:
			fs = "fig";
			break;
		case LYX_META_TAB:
			fs = "tab";
			break;
		case LYX_META_ALGORITHM:
			fs = "alg";
			break;
		case LYX_META_WIDE_FIG:
			fs = "wide-fig";
			break;
		case LYX_META_WIDE_TAB:
			fs = "wide-tab";
			break;
		case LYX_META_FOOTNOTE:
			fs = "foot";
			break;
		}
		font.decSize();
		font.decSize();
		return font.stringWidth(fs);
	} 
   
	else if (c == LYX_META_INSET) {
		Inset *tmpinset=par->GetInset(pos);
		if (tmpinset)
			return par->GetInset(pos)->Width(font);
		else
			return 0;

	} else if (IsSeparatorChar(c))
		c = ' ';
	else if (IsNewlineChar(c))
		c = 'n';
	return font.width(c);
}


/* returns the paragraph position of the last character in the 
 * specified row */
int LyXText::RowLast(Row *row)
{
	if (row->next == 0)
		return row->par->Last()-1;
	else if (row->next->par != row->par) 
		return row->par->Last()-1;
	else 
		return row->next->pos - 1;
}


void LyXText::Draw(Row *row, int &pos, LyXScreen &scr, int offset, float &x)
{
	char c = row->par->GetChar(pos);

	if (IsNewlineChar(c)) {
		pos++;
		// Draw end-of-line marker

		LyXFont font = GetFont(row->par, pos);
		int asc = font.maxAscent();
		int wid = font.width('n');
		int y = (offset + row->baseline);
		XPoint p[3];
		p[0].x = int(x + wid*0.375); p[0].y = int(y - 0.875*asc*0.75);
		p[1].x = int(x);	     p[1].y = int(y - 0.500*asc*0.75);
		p[2].x = int(x + wid*0.375); p[2].y = int(y - 0.125*asc*0.75);
		scr.drawLines(::getGC(gc_new_line),p, 3);
		
		p[0].x = int(x);	     p[0].y = int(y - 0.500*asc*0.75);
		p[1].x = int(x + wid);	     p[1].y = int(y - 0.500*asc*0.75);
		p[2].x = int(x + wid);	     p[2].y = int(y - asc*0.75);
		scr.drawLines(::getGC(gc_new_line),p, 3);
		return;
	}

	LyXFont font = GetFont(row->par, pos);
	LyXFont font2 = font;

	if (c == LYX_META_FOOTNOTE ||
	    c == LYX_META_MARGIN ||
	    c == LYX_META_FIG ||
	    c == LYX_META_TAB ||
	    c == LYX_META_WIDE_FIG ||
	    c == LYX_META_WIDE_TAB ||
	    c == LYX_META_ALGORITHM) {
		string fs;
		switch (c) {
		case LYX_META_MARGIN:
			fs = "margin";
			/* draw a sign at the left margin! */ 
			scr.drawText(font, "!", 1, offset + row->baseline,
				     (LYX_PAPER_MARGIN - font.width('!'))/2);
			break;
		case LYX_META_FIG:
			fs = "fig";
			break;
		case LYX_META_TAB:
			fs = "tab";
			break;
		case LYX_META_ALGORITHM:
			fs = "alg";
			break;
		case LYX_META_WIDE_FIG:
			fs = "wide-fig";
			break;
		case LYX_META_WIDE_TAB:
			fs = "wide-tab";
			break;
		case LYX_META_FOOTNOTE:
			fs = "foot";
			break;
		}
		font.decSize();
		font.decSize();
	  
		/* calculate the position of the footnotemark */
		int y = (row->baseline - font2.maxAscent() 
			 + font.maxAscent());
	  
		font.setColor(LyXFont::INSET);

		float tmpx = x;

		/* draw it and set new x position */
		x += scr.drawString(font, fs, offset + y, int(x));

		scr.drawLine(gc_foot, offset + row->baseline,
			     int(tmpx), int(x - tmpx));
	  
		pos++;
		return;
	} else if (c == LYX_META_INSET) {
		Inset *tmpinset = row->par->GetInset(pos);
		if (tmpinset) 
			tmpinset->Draw(font, scr, offset + row->baseline, x);
		pos++;
		return;
	}

	/* usual characters, no insets */

	// Collect character that we can draw in one command

	// This is dirty, but fast. Notice that it will never be too small.
	// For the record, I'll note that Microsoft Word has a limit
	// of 768 here. We have none :-) (Asger)
	static char textstring[1024];

	int last = RowLast(row);
	// Prevent crash in the extremely unlikely event
	// that our array is too small
	if (last > pos+1020) last = pos + 1020;

	textstring[0] = c;
	pos++;

	int i = 1;

	while (pos <= last &&
	       (unsigned char) (c = row->par->GetChar(pos)) > ' ' &&
	       font2 == GetFont(row->par, pos)) {
		textstring[i++] = c;
		pos++;
	}
	textstring[i] = 0; 

	float tmpx = x;

	// If monochrome and LaTeX mode, provide reverse background
	if (mono_video && font.latex() == LyXFont::ON) {
		int a=font.maxAscent(), d=font.maxDescent();
		scr.fillRectangle(gc_copy, int(tmpx), offset + row->baseline-a,
				  font.textWidth(textstring, i), a+d);
	}

	/* Draw text and set the new x position */ 
	x += scr.drawText(font, textstring, i, offset + row->baseline, 
			  int(x));
	/* what about underbars? */
	if (font.underbar() == LyXFont::ON && font.latex() != LyXFont::ON) {
		scr.drawLine(gc_copy, offset + row->baseline + 2,
			     int(tmpx), int(x - tmpx));
	}

	// If we want ulem.sty support, drawing
	// routines should go here. (Asger)
	// Why shouldn't LyXFont::drawText handle it internally?
}


/* Returns the left beginning of the text. 
* This information cannot be taken from the layouts-objekt, because in 
* LaTeX the beginning of the text fits in some cases (for example sections)
* exactly the label-width. */
int LyXText::LeftMargin(Row* row)
{
   int x;
   LyXLayout *layout;
   LyXFont labelfont;
   LyXParagraph *newpar;
   Row dummyrow;
   layout = lyxstyle.Style(parameters->textclass, row->par->GetLayout());
   
   string parindent = layout->parindent; 

   /* table stuff -- begin*/ 
   if (row->par->table)
      parindent.erase();
   /* table stuff -- end*/       

   x = LYX_PAPER_MARGIN;

   x += lyxstyle.TextClass(parameters->textclass)->
     defaultfont.signedStringWidth(lyxstyle.TextClass(parameters->textclass)->leftmargin);

   if (row->par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)  {
	LyXFont font(LyXFont::ALL_SANE);
	font.setSize(LyXFont::SIZE_SMALL);
	x += font.textWidth("Mwide-figM", 10) + LYX_PAPER_MARGIN/2;
   }

   /* this is the way, LyX handles the LaTeX-Environments.
    * I have had this idea very late, so it seems to be a
    * later added hack and this is true */ 
   if (!row->par->GetDepth()) {
      if (!row->par->GetLayout()) {
	 /* find the previous same level paragraph */
	 if (row->par->FirstPhysicalPar()->Previous()) {
	    newpar = row->par->DepthHook(row->par->GetDepth());
	    if (newpar && lyxstyle.Style(parameters->textclass, newpar->GetLayout())->nextnoindent)
	       parindent.erase();
	 }
      }
   }
   else {
      /* find the next level paragraph */ 
      
      newpar = row->par->DepthHook(row->par->GetDepth()-1);

      /* make a corresponding row. Needed to call LeftMargin() */
      
      /* check wether it is a sufficent paragraph */ 
      if (newpar && newpar->footnoteflag == row->par->footnoteflag
	  && lyxstyle.Style(parameters->textclass, 
			    newpar->GetLayout())->isEnvironment()) {
	     dummyrow.par = newpar;
	     dummyrow.pos = newpar->Last();
	     x = LeftMargin(&dummyrow);
      }
      else {
	 /* this is no longer an error, because this function is used
	  * to clear impossible depths after changing a layout. Since there
	  * is always a redo, LeftMargin() is always called */ 
	 
	 /* printf("LYX_ERROR (text, LeftMargin()) impossible depth \n");*/ 
	 row->par->FirstPhysicalPar()->depth = 0;
      }
      
      if (newpar && !row->par->GetLayout()) {
	 if (newpar->FirstPhysicalPar()->noindent)
	    parindent.erase();
	 else
	    parindent = lyxstyle.Style(parameters->textclass, 
				       newpar->GetLayout())->parindent;
      }
      
   }
   
   labelfont = GetFont(row->par, -2);
   switch (layout->margintype) {
    case MARGIN_DYNAMIC:
      if (!layout->leftmargin.empty()) {
	x += lyxstyle.TextClass(parameters->textclass)->defaultfont.signedStringWidth(layout->leftmargin);
      }
      if (!row->par->GetLabestring().empty()) {
	    x += labelfont.signedStringWidth(layout->labelindent);
	    x += labelfont.stringWidth(row->par->GetLabestring());
	    x += labelfont.stringWidth(layout->labelsep);
      }
      break;
    case MARGIN_MANUAL:
      x += labelfont.signedStringWidth(layout->labelindent);
      if (row->pos >= BeginningOfMainBody(row->par)) {
	 if (!row->par->GetLabelWidthString().empty()) {
	    x += labelfont.stringWidth(row->par->GetLabelWidthString());
	    x += labelfont.stringWidth(layout->labelsep);
	 }
      }
      break;
    case MARGIN_STATIC:
      x += ( lyxstyle.TextClass(parameters->textclass)->defaultfont.signedStringWidth(layout->leftmargin) * 4
	     / (row->par->GetDepth() + 4));
      break;
    case MARGIN_FIRST_DYNAMIC:
      if (layout->labeltype == LABEL_MANUAL) {
	 if (row->pos >= BeginningOfMainBody(row->par)) {
	    x += labelfont.signedStringWidth(layout->leftmargin);
	 } else {
	    x += labelfont.signedStringWidth(layout->labelindent);
	 }
      } else {
	 if (row->pos
	     // Special case to fix problems with theorems (JMarc)
	     || (layout->labeltype == LABEL_STATIC
		 && layout->latextype == LATEX_ENVIRONMENT
		 && ! row->par->IsFirstInSequence())) {
		 x += labelfont.signedStringWidth(layout->leftmargin);
	 } else if (layout->labeltype != LABEL_TOP_ENVIRONMENT
		  && layout->labeltype != LABEL_BIBLIO
		  && layout->labeltype != LABEL_CENTERED_TOP_ENVIRONMENT) {
		 x += labelfont.signedStringWidth(layout->labelindent);
		 x += labelfont.stringWidth(layout->labelsep);
		 x += labelfont.stringWidth(row->par->GetLabestring());
	 } 
      }
      break;
      
    case MARGIN_RIGHT_ADDRESS_BOX:
    {
      /* 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 *tmprow = row;
      while (tmprow->previous && tmprow->previous->par == row->par)
      	tmprow = tmprow->previous;
      
      int minfill = tmprow->fill;
      while (tmprow-> next && tmprow->next->par == row->par) {
	 tmprow = tmprow->next;
	 if (tmprow->fill < minfill)
	   minfill = tmprow->fill;
      }
      
      x += lyxstyle.TextClass(parameters->textclass)->defaultfont.signedStringWidth(layout->leftmargin);
      x += minfill;
    }
      break;
   }
   if (row->par->pextra_type == PEXTRA_INDENT) {
       if (!row->par->pextra_widthp.empty()) {
           x += paperwidth * atoi(row->par->pextra_widthp.c_str()) / 100;
       } else if (!row->par->pextra_width.empty()) {
           int xx = VSpace(row->par->pextra_width).inPixels();

           if (xx > paperwidth)
               xx = paperwidth * 80 / 100;
           x += xx;
       } else { // should not happen
           LyXFont font(LyXFont::ALL_SANE);
           x += font.stringWidth("XXXXXX");
       }
   }
   
   int align;
   if (row->par->FirstPhysicalPar()->align == LYX_ALIGN_LAYOUT)
     align = layout->align;
   else
     align = row->par->FirstPhysicalPar()->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
		&& ! row->par->IsFirstInSequence()))
	   && row->par == row->par->FirstPhysicalPar()
	   && align == LYX_ALIGN_BLOCK
	   && !row->par->noindent
	   && (row->par->layout ||
	       parameters->paragraph_separation == LYX_PARSEP_INDENT))
	 x += lyxstyle.TextClass(parameters->textclass)->defaultfont.stringWidth(parindent);
       else 
	 if (layout->labeltype==LABEL_BIBLIO) { // ale970405 Right width for bibitems
	     x += bibitemMaxWidth(lyxstyle.TextClass(parameters->textclass)->defaultfont);
	 }
   }

   return x;
}
    
   
int LyXText::RightMargin(Row *row)
{
   int  x;
   LyXLayout* layout;
   
   LyXParagraph *newpar;
   Row dummyrow;
   layout = lyxstyle.Style(parameters->textclass, row->par->GetLayout());

   x = LYX_PAPER_MARGIN;

   x += lyxstyle.TextClass(parameters->textclass)->
     defaultfont.signedStringWidth(lyxstyle.TextClass(parameters->textclass)->rightmargin);
   if (row->par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)  {
     x += LYX_PAPER_MARGIN/2;
   }

    /* this is the way, LyX handles the LaTeX-Environments.
    * I have had this idea very late, so it seems to be a
    * later added hack and this is true */ 
   if (row->par->GetDepth()) {
      /* find the next level paragraph */ 
      
      newpar = row->par;
      
      do {
		newpar = newpar->FirstPhysicalPar()->Previous();
		if (newpar) 
			newpar = newpar->FirstPhysicalPar();
      } while (newpar && newpar->GetDepth() >= row->par->GetDepth()
	       && newpar->footnoteflag == row->par->footnoteflag);
      
      /* make a corresponding row. Needed to call LeftMargin() */

      /* check wether it is a sufficent paragraph */ 
      if (newpar && newpar->footnoteflag == row->par->footnoteflag
	  && lyxstyle.Style(parameters->textclass,
			    newpar->GetLayout())->isEnvironment()) {
	     dummyrow.par = newpar;
	     dummyrow.pos = 0;
	     x = RightMargin(&dummyrow);
	  }
      else {
	 /* this is no longer an error, because this function is used
	  * to clear impossible depths after changing a layout. Since there
	  * is always a redo, LeftMargin() is always called */ 
	 
	 /* printf("LYX_ERROR (text, LeftMargin()) impossible depth \n");*/ 
	 row->par->FirstPhysicalPar()->depth = 0;
      }
   }

   //lyxerr << "rightmargin: " << layout->rightmargin << endl;
   x += (lyxstyle.TextClass(parameters->textclass)->defaultfont.signedStringWidth(layout->rightmargin) * 4
	 / (row->par->GetDepth() + 4));
   return x;
   
}


int LyXText::LabelEnd (Row *row)
{
   if (lyxstyle.Style(parameters->textclass, row->par->GetLayout())->margintype == MARGIN_MANUAL) {
      Row tmprow;
      tmprow = *row;
      tmprow.pos = row->par->Last();
      return LeftMargin(&tmprow);      /* just the beginning 
					* of the main body */
   }
   else
     return 0;			       /* LabelEnd is only needed, if the  
					* layout fills a flushleft
					* label. */
}


/* table stuff -- begin*/ 
int LyXText::NumberOfCell(LyXParagraph *par, int pos)
{
   int cell = 0;
   int tmp_pos = 0;
   while (tmp_pos < pos) {
      if (par->IsNewline(tmp_pos))
      	 cell++;
      tmp_pos++;
   }
   return cell;
}


int LyXText::WidthOfCell(LyXParagraph *par, int &pos)
{
   int w = 0;
   while (pos < par->Last() && !par->IsNewline(pos)) {
      w += SingleWidth(par, pos);
      pos++;
   }
   if (par->IsNewline(pos))
      pos++;
   return w;
}


char LyXText::HitInTable(Row* row, int x)
{
  float tmpx;
  float fill_separator, fill_hfill, fill_label_hfill;
  if (!row->par->table)
    return 0;
  PrepareToPrint(row, tmpx, fill_separator, fill_hfill, fill_label_hfill);
  return (x > tmpx && x < tmpx + row->par->table->WidthOfTable());
}


bool LyXText::MouseHitInTable(int x, long y)
{
	Row *row = GetRowNearY(y);
        return HitInTable(row, x);
}


/* table stuff -- end*/


/* get the next breakpoint in a given paragraph */
int LyXText::NextBreakPoint(Row* row, int width)
{
	int x = 0;
	int last_separator = -1; /* position of the last possible breakpoint 
				  * -1 isn't a suitable value, but a flag */
	int i = 0;
	int left_margin;
	
	LyXParagraph *par = row->par;
	int pos = row->pos;
	
	/* table stuff -- begin*/ 
	if (par->table) {
		while (pos<par->last 
		       && (!par->IsNewline(pos) 
			   || !par->table->IsFirstCell(NumberOfCell(par, pos+1)))) {
			if (par->GetChar(pos) == LYX_META_INSET &&
			    par->GetInset(pos) && par->GetInset(pos)->Display()){
				par->GetInset(pos)->SetDisplay(false);
			}
			pos++;
		}
		return pos;
	}
	/* table stuff -- end*/ 
	
	left_margin = LabelEnd(row);
	width -= RightMargin(row);
	int main_body = BeginningOfMainBody(par);
	LyXLayout* layout = lyxstyle.Style(parameters->textclass, par->GetLayout());
	i = pos;
	char c;
	
	if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
		/* special code for right address boxes, only newlines count */
		while (i < par->Last()) {
			if (par->IsNewline(i)) {
				last_separator = i;
				i = par->Last() - 1;/* this means break  */
				x = width;
			} else if (par->GetChar(i) == LYX_META_INSET &&
				   par->GetInset(i) && par->GetInset(i)->Display()){
				par->GetInset(i)->SetDisplay(false);
			}
			i++;
		}
	} else {
		// Last position is an invariant
		int const last = par->Last();
		/* this is the usual handling */ 
		x = LeftMargin(row);
		while (x < width && i < last) {
			c = par->GetChar(i);
			if (IsNewlineChar(c)) {
				last_separator = i;
				x = width;		       /* this means break  */
			} else if (c == LYX_META_INSET &&
				   par->GetInset(i) && par->GetInset(i)->Display()){
				/* check wether a Display() inset is valid here .
				   if not, change it to non-display*/ 
				if (layout->isCommand()
				    || (layout->labeltype == LABEL_MANUAL
					&& i < BeginningOfMainBody(par))){
					/* display istn't allowd */ 
					par->GetInset(i)->SetDisplay(false);
					x += SingleWidth(par, i, c);
				} else {
					/* inset is display. So break the line here */ 
					if (i==pos){
						if (pos < last-1) {
							last_separator = i;
							if (IsLineSeparatorChar(par->GetChar(i+1)))
								last_separator++;
						} else
							last_separator = last; // to avoid extra rows
					} else
						last_separator = i - 1;
					x = width;		       /* this means break  */
				}
			} else  {
				if (IsLineSeparatorChar(c))
					last_separator = i;
				x += SingleWidth(par, i, c);
			}
			i++;
			if (i == main_body) {
				x += GetFont(par, -2).stringWidth(layout->labelsep);
				if (par->IsLineSeparator(i - 1))
					x-= SingleWidth(par, i - 1);
				if (x < left_margin)
					x = left_margin;
			}
		}
		/* end of paragraph is always a suitable separator */
		if (i == last && x < width)
			last_separator = i;
	}
	
	/* well, if last_separator is still 0, the line isn't breakable. 
	 * don't care and cut simply at the end */
	if (last_separator < 0) {
		last_separator = i;
	}
	
	/* manual labels cannot be broken in LaTeX, do not care  */
	if (main_body && last_separator < main_body)
		last_separator = main_body - 1;
	
	return last_separator;
}


/* returns the minimum space a row needs on the screen in pixel */
int LyXText::Fill(Row *row, int paperwidth)
{
   int w,i, last, fill, left_margin;
   /* get the pure distance */
   last = RowLast(row);
   
   /* table stuff -- begin*/
   if (row->par->table) {
      /* for tables FILL does calculate the widthes of each cell in 
       * the row */ 
      int pos = row->pos;
      int cell = NumberOfCell(row->par, pos);
      w = 0;
      do {
	 row->par->table->SetWidthOfCell(cell, WidthOfCell(row->par, pos));
	 cell++;
      } while (pos <= last && !row->par->table->IsFirstCell(cell));
      /* don't forget the very last table cell without characters */
      if (cell == row->par->table->GetNumberOfCells()-1)
          row->par->table->SetWidthOfCell(cell, WidthOfCell(row->par, pos));
      
      return 0; /* width of table cannot be returned since
		 * we cannot guarantee its correct value at
		 * this point. */ 
   }
   /* table stuff -- end*/ 

   left_margin = LabelEnd(row);

     /* if the row ends with newline, this newline will not be relevant */ 
     if (last >= 0 && row->par->IsNewline(last))
       last--;
     
     /* if the row ends with a space, this space will not be relevant */ 
     if (last >= 0 && row->par->IsLineSeparator(last))
       last--;

   /* special handling of the right address boxes */ 
   if (lyxstyle.Style(parameters->textclass, row->par->GetLayout())->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
      int tmpfill = row->fill;
      row->fill = 0; 		       /* the minfill in MarginLeft()  */
      w = LeftMargin(row);
      row->fill = tmpfill;
      
      /* the old way, impossible when using environments: */ 
      /*  w = LyXStringWidth(lyxstyle.Style(parameters->textclass, row->par->GetLayout())->font, */ 
      /* 			 lyxstyle.Style(parameters->textclass, row->par->GetLayout())->leftmargin); */
   }
   else
     w = LeftMargin(row);
   
   int main_body = BeginningOfMainBody(row->par);
   LyXLayout *layout = lyxstyle.Style(parameters->textclass,
				      row->par->GetLayout());
   i = row->pos;
   while (i<= last) {
      w += SingleWidth(row->par, i);
      i++;
      if (i == main_body) {
	 w += GetFont(row->par, -2).stringWidth(layout->labelsep);
	 if (row->par->IsLineSeparator(i - 1))
	   w-= SingleWidth(row->par, i - 1);
	 if (w < left_margin)
	   w = left_margin;
      }
   }
   
   fill = paperwidth - w - RightMargin(row);
   return fill;
}


/* returns the minimum space a manual label needs on the screen in pixel */ 
int LyXText::LabelFill(Row *row)
{
   int w,i, last;
   int fill=0;
   
   last = BeginningOfMainBody(row->par) - 1;
   /* -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. */ 

   // I don't understand this code in depth, but sometimes "last" is less than
   // 0 and this causes a crash. This fix seems to work correctly, but I
   // bet the real error is elsewhere.  The bug is triggered when you have an 
   // open footnote in a paragraph environment with a manual label. (Asger)
   if (last<0) last = 0;

   if (row->par->IsLineSeparator(last))    /* a sepearator at this end 
					* does not count */
     last--;
   
   w = 0;
   i = row->pos;
   while (i<= last) {
      w += SingleWidth(row->par, i);
      i++;
   }
   
   if (!row->par->labelwidthstring.empty()) {
      fill = GetFont(row->par, -2).stringWidth(row->par->labelwidthstring) - w;
   }
   
   if (fill < 0)
     fill = 0;
   
   return fill;
}


/* returns the number of separators in the specified row. The separator 
* on the very last column doesnt count */ 
int LyXText::NumberOfSeparators(Row *row)
{
   int n,p,last;
   
   last = RowLast(row);
   n = 0;
   p = row->pos;
   int main_body = BeginningOfMainBody(row->par);
   if (p < main_body)
     p = main_body;
   for (; p < last; p++) {
      if (row->par->IsSeparator(p)) {
	 n++;
      }
   }
   return n;
}


/* returns the number of hfills in the specified row. The LyX-Hfill is
* a LaTeX \hfill so that the hfills at the beginning and at the end were 
* ignored. This is *MUCH* more usefull than not to ignore!  */
int LyXText::NumberOfHfills(Row *row)
{
   int n,p,last, first;
   
   last = RowLast(row);
   first = row->pos;
   if (first) {			       /* hfill *DO* count at the beginning 
					* of paragraphs! */
     while(first <= last && row->par->IsHfill(first))
       first++;
   }

   n = 0;
   int main_body = BeginningOfMainBody(row->par);
   if (first < main_body)
     first = main_body;
   for (p = first; p <= last; p++) {    /* last, because the end is ignored!  */
      if (row->par->IsHfill(p)) {
	 n++;
      }
   }
   return n;
}


/* like NumberOfHfills, but only those in the manual label! */ 
int LyXText::NumberOfLabelHfills(Row *row)
{
   int n,p,last, first;
   
   last = RowLast(row);
   first = row->pos;
   if (first) {			       /* hfill *DO* count at the beginning 
					* of paragraphs! */
      while(first < last && row->par->IsHfill(first))
      	first++;
   }

   n = 0;
   int main_body = BeginningOfMainBody(row->par);
   
   if (last > main_body)
     last = main_body;
   
   for (p = first; p < last; p++) {    /* last, because the end is ignored!  */
      if (row->par->IsHfill(p)) {
	 n++;
      }
   }
   return n;
}


/* returns true, if a expansion is needed.
 * Rules are given by LaTeX */ 
bool LyXText::HfillExpansion(Row *row_ptr, int pos)
{
   /* by the way, is it a hfill? */ 
   if (!row_ptr->par->IsHfill(pos))
     return false;
   
   /* at the end of a row it does not count */ 
   if (pos >= RowLast(row_ptr))
     return false;
   
   /* at the beginning of a row it does not count, if it is not 
    * the first row of a paragaph */ 
   if (!row_ptr->pos)
     return true;
   
   /* in some labels  it does not count */ 
   if ( lyxstyle.Style(parameters->textclass, row_ptr->par->GetLayout())->margintype != MARGIN_MANUAL &&
       pos < BeginningOfMainBody(row_ptr->par))
     return false; 
   
   /* if there is anything between the first char of the row and
    * the sepcified position that is not a newline and not a hfill,
    * the hfill will count, otherwise not */ 
   
   int i = row_ptr->pos;
   while (i < pos && (row_ptr->par->IsNewline(i)
		      || row_ptr->par->IsHfill(i)))
     i++;
   
   return (i != pos);
}


void LyXText::SetHeightOfRow(Row *row_ptr)
{
    /* get the maximum ascent and the maximum descent */
   int asc, maxasc, desc, maxdesc, pos_end, pos, labeladdon;
   float layoutasc = 0;
   float layoutdesc = 0;
   float tmptop = 0;
   LyXParagraph *par, *firstpar;
   LyXFont tmpfont;
   Inset *tmpinset;

   /* this must not happen before the currentrow for clear reasons.
      so the trick is just to set the current row onto this row */
   long unused_y;
   GetRow(row_ptr->par, row_ptr->pos, unused_y);

   /* ok , let us initialize the maxasc and maxdesc value. 
    * This depends in LaTeX of the font of the last character
    * in the paragraph. The hack below is necessary because
    * of the possibility of open footnotes */

   /* Correction: only the fontsize count. The other properties
      are taken from the layoutfont. Nicer on the screen :) */
   
   par = row_ptr->par->LastPhysicalPar();
   firstpar = row_ptr->par->FirstPhysicalPar();
   
   LyXLayout *layout = lyxstyle.Style(parameters->textclass, firstpar->GetLayout());
   
   LyXFont font = GetFont(par, par->Last()-1);
   LyXFont::FONT_SIZE size = font.size();
   font = GetFont(par, -1);
   font.setSize(size);

   LyXFont labelfont = GetFont(par, -2);

   maxasc = int(font.maxAscent() *
		   layout->spacing.getValue() *
		   parameters->spacing.getValue());
   maxdesc = int(font.maxDescent() *
		    layout->spacing.getValue() *
		    parameters->spacing.getValue());

   pos_end = RowLast(row_ptr);
   
   labeladdon = 0;

   // Check if any insets are larger
   for (pos = row_ptr->pos; pos <= pos_end; pos++) {
      if (row_ptr->par->GetChar(pos) == LYX_META_INSET) {
	 tmpfont = GetFont(row_ptr->par, pos);
         tmpinset = row_ptr->par->GetInset(pos);
         if (tmpinset) {
            asc = tmpinset->Ascent(tmpfont);
            desc = tmpinset->Descent(tmpfont);
	    if (asc > maxasc) 
	      maxasc = asc;
	    if (desc > maxdesc)
	      maxdesc = desc;
	 }
      }
   }

   // Check if any custom fonts are larger (Asger)
   // This is not completely correct, but we can live with the small,
   // cosmetic error for now.
   LyXFont::FONT_SIZE maxsize = row_ptr->par->HighestFontInRange(row_ptr->pos, pos_end);
   if (maxsize > font.size()) {
	font.setSize(maxsize);

	asc = font.maxAscent();
	desc = font.maxDescent();
	if (asc > maxasc) 
		maxasc = asc;
	if (desc > maxdesc)
		maxdesc = desc;
   }

   /* table stuff -- begin*/
   if (row_ptr->par->table){
     // stretch the rows a bit
      maxasc += 1;
      maxdesc +=1;
   }
   /* table stuff -- end*/

   // This is nicer with box insets:
   maxasc++;
   maxdesc++;

   row_ptr->ascent_of_text = maxasc;
   
   /* is it a top line? */ 
   if (row_ptr->pos == 0
       && row_ptr->par == firstpar) {
      
      /* some parksips VERY EASY IMPLEMENTATION */ 
      if (parameters->paragraph_separation == LYX_PARSEP_SKIP) {
	 if (layout->isParagraph()
	     && firstpar->GetDepth() == 0
	     && firstpar->Previous())
	    maxasc += parameters->getDefSkip().inPixels();
	 else if (firstpar->Previous()
		  && lyxstyle.Style(parameters->textclass,
			   firstpar->Previous()->GetLayout())->isParagraph()
		  && firstpar->Previous()->GetDepth() == 0)
	   // is it right to use defskip here too? (AS)
	   maxasc += parameters->getDefSkip().inPixels();
      }
      
      /* the paper margins */ 
      if (!row_ptr->par->previous)
      	 maxasc += LYX_PAPER_MARGIN;
      
      /* add the vertical spaces, that the user added */
      if (firstpar->added_space_top.kind() != VSpace::NONE)
      	 maxasc += int(firstpar->added_space_top.inPixels());
      
      /* do not forget the DTP-lines! 
       * there height depends on the font of the nearest character */
      if (firstpar->line_top)
      	 maxasc += 2 * GetFont(firstpar, 0).ascent('x');
      
      /* and now the pagebreaks */ 
      if (firstpar->pagebreak_top)
      	 maxasc += 3 * DefaultHeight();
      
      /*  this is special code for the chapter, since the label of this
       * layout is printed in an extra row */ 
      if (layout->labeltype == LABEL_COUNTER_CHAPTER
	  && parameters->secnumdepth>=0) {
	      labeladdon = int(labelfont.maxDescent() *
				  layout->spacing.getValue() *
				  parameters->spacing.getValue())
		      + int(labelfont.maxAscent() *
			       layout->spacing.getValue() *
			       parameters->spacing.getValue());
      }
      
      /* special code for the top label */ 
      if ((layout->labeltype == LABEL_TOP_ENVIRONMENT
	   || layout->labeltype == LABEL_BIBLIO
	   || layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
	  && row_ptr->par->IsFirstInSequence()
	  && !row_ptr->par->GetLabestring().empty()) {
	 labeladdon = int(
		 (labelfont.maxAscent() *
		  layout->spacing.getValue() *
		  parameters->spacing.getValue())
		 +(labelfont.maxDescent() *
		   layout->spacing.getValue() *
		   parameters->spacing.getValue())
		 + layout->topsep * DefaultHeight()
		 + layout->labelbottomsep *  DefaultHeight());
      }
   
      /* and now the layout spaces, for example before and after a section, 
       * or between the items of a itemize or enumerate environment */ 
      
      if (!firstpar->pagebreak_top) {
	 LyXParagraph *prev = row_ptr->par->Previous();
	 if (prev)
	    prev = row_ptr->par->DepthHook(row_ptr->par->GetDepth());
	 if (prev && prev->GetLayout() == firstpar->GetLayout()
	     && prev->GetDepth() == firstpar->GetDepth()
	     && prev->GetLabelWidthString() == firstpar->GetLabelWidthString())
	   {
	      layoutasc = (layout->itemsep * DefaultHeight());
	   }
	 else if (row_ptr->previous) {
	    tmptop = layout->topsep;
	    
	    if (row_ptr->previous->par->GetDepth() >= row_ptr->par->GetDepth())
	       tmptop-=lyxstyle.Style(parameters->textclass, row_ptr->previous->par->GetLayout())->bottomsep;
	    
	    if (tmptop > 0)
	       layoutasc = (tmptop * DefaultHeight());
	 }
	 else if (row_ptr->par->line_top){
	    tmptop = layout->topsep;
	    
	    if (tmptop > 0)
	       layoutasc = (tmptop * DefaultHeight());
	 }
	 
	 prev = row_ptr->par->DepthHook(row_ptr->par->GetDepth()-1);
	 if (prev)  {
	    maxasc += int(lyxstyle.Style(parameters->textclass,
					 prev->GetLayout())->parsep * DefaultHeight());
	 }
	 else {
		if (firstpar->Previous()
		    && firstpar->Previous()->GetDepth() == 0
		    && firstpar->Previous()->GetLayout() != firstpar->GetLayout()) {
		   /* avoid parsep */ 
		}
	    else if (firstpar->Previous()){
	       maxasc += int(layout->parsep * DefaultHeight());
	    }
	 }
      }
   }
   
   /* is it a bottom line? */ 
   if (row_ptr->par->ParFromPos(RowLast(row_ptr) + 1) == par
       && (!row_ptr->next || row_ptr->next->par != row_ptr->par)) {     
	  
	  /* the paper margins */ 
	  if (!par->next)
	    maxdesc += LYX_PAPER_MARGIN;
	
	  /* add the vertical spaces, that the user added */
	  if (firstpar->added_space_bottom.kind() != VSpace::NONE)
	    maxdesc += int(firstpar->added_space_bottom.inPixels());
	  
	  /* do not forget the DTP-lines! 
	   * there height depends on the font of the nearest character */
	  if (firstpar->line_bottom)
	    maxdesc += 2 * (GetFont(par, par->Last()-1).ascent('x'));
	  
	  /* and now the pagebreaks */
	  if (firstpar->pagebreak_bottom)
	    maxdesc += 3 * DefaultHeight();
	  
	  /* and now the layout spaces, for example before and after a section, 
	   * or between the items of a itemize or enumerate environment */
	  if (!firstpar->pagebreak_bottom && row_ptr->par->Next()) {
	     LyXParagraph *nextpar = row_ptr->par->Next();
	     LyXParagraph *comparepar = row_ptr->par;
	     float usual = 0;
	     float  unusual = 0;
	     
	     if (comparepar->GetDepth() > nextpar->GetDepth()) {
		usual = (lyxstyle.Style(parameters->textclass, comparepar->GetLayout())->bottomsep * DefaultHeight());
		comparepar = comparepar->DepthHook(nextpar->GetDepth());
		if (comparepar->GetLayout()!=nextpar->GetLayout()
		    || nextpar->GetLabelWidthString() != 
		    	comparepar->GetLabelWidthString())
		  unusual = (lyxstyle.Style(parameters->textclass, comparepar->GetLayout())->bottomsep * DefaultHeight());
		
		if (unusual > usual)
		  layoutdesc = unusual;
		else
		  layoutdesc = usual;
	     }
	     else if (comparepar->GetDepth() ==  nextpar->GetDepth()) {
		
		if (comparepar->GetLayout()!= nextpar->GetLayout()
		    || nextpar->GetLabelWidthString() !=
			comparepar->GetLabelWidthString())
		  layoutdesc = int(lyxstyle.Style(parameters->textclass, comparepar->GetLayout())->bottomsep * DefaultHeight());
	     }
	  }
       }
   
   /* incalculate the layout spaces */ 
   maxasc += int(layoutasc * 2 / (2 + firstpar->GetDepth()));
   maxdesc += int(layoutdesc * 2 / (2 + firstpar->GetDepth()));

   /* table stuff -- begin*/
   if (row_ptr->par->table){
      maxasc += row_ptr->par->table->
	AdditionalHeight(NumberOfCell(row_ptr->par, row_ptr->pos));
   }
   /* table stuff -- end*/
   
   /* calculate the new height of the text */ 
   height -= row_ptr->height;
   
   row_ptr->height=maxasc+maxdesc+labeladdon;
   row_ptr->baseline=maxasc+labeladdon;
   
   height += row_ptr->height;
}


/* Appends the implicit specified paragraph behind the specified row,
 * start at the implicit given position */
void LyXText::AppendParagraph(Row *row)
{
   int z;
   Row *tmprow;
   bool not_ready = true;
   
   // Get the width of the row
   z = row->pos;

   // The last character position of a paragraph is an invariant so we can 
   // safely get it here. (Asger)
   int lastposition = row->par->Last();

   do {
      // Get the next breakpoint
      z = NextBreakPoint(row, paperwidth);
      
      tmprow = row;

      // Insert the new row
      if (z < lastposition) {
	 z++;
	 InsertRow(row, row->par, z);
	 row = row->next;

	 row->height = 0;
      } else
	 not_ready = false;
      
      // Set the dimensions of the row
      tmprow->fill = Fill(tmprow, paperwidth);
      SetHeightOfRow(tmprow);

   } while (not_ready);
}


void LyXText::BreakAgain(Row *row)
{
   int z;
   char not_ready;
   z = row->pos;
   Row *tmprow, *tmprow2;
   
   not_ready = 1;
   
   do  {
      /* get the next breakpoint */
      z = NextBreakPoint(row, paperwidth);
      
      tmprow = row;
      
      if (z < row->par->Last() ) {
	 if (!row->next || (row->next && row->next->par != row->par)) {
	    /* insert a new row */ 
	    z++;
	    InsertRow(row, row->par, z);
	    row = row->next;
	    row->height = 0;
	 }
	 else  {
	    row=row->next;
	    z++;
	    if (row->pos == z)
	      not_ready = 0;	       /* the rest will not change  */
	    else {
	       row->pos = z;
	    }
	 }
      }
      else {
	 /* if there are some rows too much, delete them */
	 /* only if you broke the whole paragraph! */ 
	 tmprow2 = row;
	 while (tmprow2->next && tmprow2->next->par == row->par) {
	    tmprow2 = tmprow2->next;
	 }
	 while (tmprow2 != row) {
	    tmprow2 = tmprow2->previous;
	    RemoveRow(tmprow2->next);
	 }
	 not_ready = 0;
      }
       
      /* set the dimensions of the row */ 
      tmprow->fill = Fill(tmprow, paperwidth);
      SetHeightOfRow(tmprow);
   } while (not_ready);
}


/* this is just a little changed version of break again */ 
void LyXText::BreakAgainOneRow(Row *row)
{
   int z;
   char not_ready;
   z = row->pos;
   Row *tmprow, *tmprow2;
   
   not_ready = 1;
   
   /* get the next breakpoint */
   z = NextBreakPoint(row, paperwidth);
   
   tmprow = row;
   
   if (z < row->par->Last() ) {
      if (!row->next || (row->next && row->next->par != row->par)) {
	 /* insert a new row */ 
	 z++;
	 InsertRow(row, row->par, z);
	 row = row->next;
	 row->height = 0;
      }
      else  {
	 row=row->next;
	 z++;
	 if (row->pos == z)
	   not_ready = 0;	       /* the rest will not change  */
	 else {
	    row->pos = z;
	 }
      }
   }
   else {
      /* if there are some rows too much, delete them */
      /* only if you broke the whole paragraph! */ 
      tmprow2 = row;
      while (tmprow2->next && tmprow2->next->par == row->par) {
	 tmprow2 = tmprow2->next;
      }
      while (tmprow2 != row) {
	 tmprow2 = tmprow2->previous;
	 RemoveRow(tmprow2->next);
      }
      not_ready = 0;
   }
   
   /* set the dimensions of the row */ 
   tmprow->fill = Fill(tmprow, paperwidth);
   SetHeightOfRow(tmprow);
}


void LyXText::BreakParagraph(char keep_layout)
{
   LyXLayout *layout = lyxstyle.Style(parameters->textclass,
				      cursor.par->GetLayout());
   
   /* table stuff -- begin*/
   if (cursor.par->table) {
       // breaking of tables is only allowed at the beginning or the end */
       if (cursor.pos && cursor.pos < cursor.par->last &&
           !cursor.par->table->ShouldBeVeryLastCell(NumberOfCell(cursor.par, cursor.pos)))
           return; /* no breaking of tables allowed */ 
   }
   /* table stuff -- end*/

   /* this is only allowed, if the current paragraph is not empty or caption*/ 
   if ((cursor.par->Last() <= 0 && !cursor.par->IsDummy())
       && 
       layout->labeltype!=LABEL_SENSITIVE)
     return;

   SetUndo(Undo::INSERT, 
	   cursor.par->ParFromPos(cursor.pos)->previous, 
	   cursor.par->ParFromPos(cursor.pos)->next); 

   /* table stuff -- begin*/
   if (cursor.par->table) {
       int cell = NumberOfCell(cursor.par, cursor.pos);
       if (cursor.par->table->ShouldBeVeryLastCell(cell))
           SetCursor(cursor.par,cursor.par->last);
   }
   /* table stuff -- end*/
   /* please break alway behind a space */ 
   if (cursor.pos < cursor.par->Last()
       && cursor.par->IsLineSeparator(cursor.pos))
     cursor.pos++;
   
   /* break the paragraph */
   if (keep_layout)
     keep_layout = 2;
   else	
     keep_layout = layout->isEnvironment();
   cursor.par->BreakParagraph(cursor.pos, keep_layout);

   /* table stuff -- begin*/
   if (cursor.par->table){
     // the table should stay with the contents
     if (!cursor.pos){
       cursor.par->Next()->table = cursor.par->table;
       cursor.par->table = 0;
     }
   }
   /* table stuff -- end*/

   /* well this is the caption hack since one caption is really enough */
   if (layout->labeltype == LABEL_SENSITIVE){
     if (!cursor.pos)
       cursor.par->SetLayout(0); /* set the new paragraph to standard-layout */
     else
       cursor.par->Next()->SetLayout(0); /* set the new paragraph to standard-layout */
	 
   }
   
   /* if the cursor is at the beginning of a row without prior newline, 
    *  move one row up! 
    * This touches only the screen-update. Otherwise we would may have
    * an empty row on the screen */
   if (cursor.pos && !cursor.row->par->IsNewline(cursor.row->pos -1) &&
       cursor.row->pos == cursor.pos) {
     CursorLeft();
   } 
   
   status = LyXText::NEED_MORE_REFRESH;
   refresh_row = cursor.row;
   refresh_y = cursor.y - cursor.row->baseline;
   
   /* Do not forget the special right address boxes */
   if (layout->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
      while (refresh_row->previous &&
	     refresh_row->previous->par == refresh_row->par) {
		refresh_row = refresh_row->previous;
		refresh_y -= refresh_row->height;
	     }
   }
   RemoveParagraph(cursor.row);
   
   /* set the dimensions of the cursor row */
   cursor.row->fill = Fill(cursor.row, paperwidth);

   SetHeightOfRow(cursor.row);
   
   while (!cursor.par->Next()->table && cursor.par->Next()->Last()
	  && cursor.par->Next()->IsNewline(0))
     cursor.par->Next()->Erase(0);
   
   InsertParagraph(cursor.par->Next(), cursor.row);

   UpdateCounters(cursor.row->previous);
   
   /* this check is necessary. Otherwise the new empty paragraph will
    * be deleted automatically. And it is more friendly for the user! */ 
   if (cursor.pos)
     SetCursor(cursor.par->Next(), 0);
   else
     SetCursor(cursor.par, 0);
   
   if (cursor.row->next)
     BreakAgain(cursor.row->next);

   need_break_row = 0;
}


void LyXText::OpenFootnote()
{
   LyXParagraph *par, *endpar,*tmppar;
   Row *row;
   
   par = cursor.par->ParFromPos(cursor.pos);
   
   /* if there is no footnote in this paragraph, just return. */ 
   if (!par->next
       || par->next->footnoteflag != LyXParagraph::CLOSED_FOOTNOTE)
     return;
   
   /* ok, move the cursor right before the footnote */ 
   
   /* just a little faster than using CursorRight() */
   for (cursor.pos=0; cursor.par->ParFromPos(cursor.pos)!=par; cursor.pos++);
   /* now the cursor is at the beginning of the physical par */
   SetCursor(cursor.par, cursor.pos + cursor.par->ParFromPos(cursor.pos)->last);
   
   /* the cursor must be exactly before the footnote */ 
   par = cursor.par->ParFromPos(cursor.pos);
   
   status = LyXText::NEED_MORE_REFRESH;
   refresh_row = cursor.row;
   refresh_y = cursor.y - cursor.row->baseline;
   
   tmppar = cursor.par;
   endpar = cursor.par->Next();
   row = cursor.row;
   
   tmppar->OpenFootnote(cursor.pos);
   RemoveParagraph(row);
   /* set the dimensions of the cursor row */
   row->fill = Fill(row, paperwidth);
   SetHeightOfRow(row);
   tmppar = tmppar->Next();
   
   while (tmppar != endpar) {
      if (tmppar) {
	 InsertParagraph(tmppar, row);
	 while (row->next && row->next->par == tmppar)
	   row = row->next;
	 tmppar = tmppar->Next();
      }
   }
   SetCursor(par->next, 0);
   sel_cursor = cursor;
}
   

/* table stuff -- begin*/

void LyXText::TableFeatures(int feature, string val)
{
    int
        actCell;
    
    if (!cursor.par->table)
        return; /* this should never happen */
  
    actCell = NumberOfCell(cursor.par, cursor.pos);
    SetUndo(Undo::FINISH, 
            cursor.par->ParFromPos(cursor.pos)->previous, 
            cursor.par->ParFromPos(cursor.pos)->next); 

    switch (feature){
      case LyXTable::SET_PWIDTH:
          cursor.par->table->SetPWidth(actCell,val);
          break;
      case LyXTable::SET_SPECIAL_COLUMN:
      case LyXTable::SET_SPECIAL_MULTI:
          cursor.par->table->SetAlignSpecial(actCell,val,feature);
          break;
      default:
          break;
    }
    RedoParagraph();
}


void LyXText::TableFeatures(int feature)
{
    int
        setLines = 0,
        setAlign = LYX_ALIGN_LEFT,
        lineSet,
        actCell;
    bool
        what;
    
    if (!cursor.par->table)
        return; /* this should never happen */
  
    actCell = NumberOfCell(cursor.par, cursor.pos);
    SetUndo(Undo::FINISH, 
            cursor.par->ParFromPos(cursor.pos)->previous, 
            cursor.par->ParFromPos(cursor.pos)->next); 

    switch (feature){
      case LyXTable::ALIGN_LEFT:
          setAlign=LYX_ALIGN_LEFT;
          break;
      case LyXTable::ALIGN_RIGHT:
          setAlign=LYX_ALIGN_RIGHT;
          break;
      case LyXTable::ALIGN_CENTER:
          setAlign=LYX_ALIGN_CENTER;
          break;
      default:
          break;
    }
    switch (feature){
      case LyXTable::APPEND_ROW: {
	  int pos = cursor.pos;
          /* move to the next row */
          int cell_org = actCell;
          int cell = cell_org;

          // if there is a ContRow following this row I have to add
          // the row after the ContRow's
          if ((pos < cursor.par->Last()) &&
              cursor.par->table->RowHasContRow(cell_org)) {
              while((pos < cursor.par->Last()) &&
                    !cursor.par->table->IsContRow(cell)) {
                  while (pos < cursor.par->Last() &&
                         !cursor.par->IsNewline(pos))
                      pos++;
                  if (pos < cursor.par->Last())
                      pos++;
                  cell++;
              }
              while((pos < cursor.par->Last()) &&
                    cursor.par->table->IsContRow(cell)) {
                  while (pos < cursor.par->Last() &&
                         !cursor.par->IsNewline(pos))
                      pos++;
                  if (pos < cursor.par->Last())
                      pos++;
                  cell++;
              }
              cell_org = --cell;
              if (pos < cursor.par->Last())
                  pos--;
          }
          while (pos < cursor.par->Last() && 
                 (cell == cell_org || !cursor.par->table->IsFirstCell(cell))){
              while (pos < cursor.par->Last() && !cursor.par->IsNewline(pos))
                  pos++;
              if (pos < cursor.par->Last())
                  pos++;
              cell++;
          }
		
          /* insert the new cells */ 
          int number = cursor.par->table->NumberOfCellsInRow(cell_org);
          int i;
          for (i=0; i<number; i++)
              cursor.par->InsertChar(pos, LYX_META_NEWLINE);
		
          /* append the row into the table */
          cursor.par->table->AppendRow(cell_org);
          RedoParagraph();
          return;
      }
      case LyXTable::APPEND_CONT_ROW: {
          int pos = cursor.pos;
          /* move to the next row */
          int cell_org = actCell;
          int cell = cell_org;

          // if there is already a controw but not for this cell
          // the AppendContRow sets only the right values but does
          // not actually add a row
          if (cursor.par->table->RowHasContRow(cell_org) &&
              (cursor.par->table->CellHasContRow(cell_org)<0)) {
              cursor.par->table->AppendContRow(cell_org);
              RedoParagraph();
              return;
          }
          while (pos < cursor.par->Last() && 
                 (cell == cell_org
                  || !cursor.par->table->IsFirstCell(cell))){
              while (pos < cursor.par->Last() && !cursor.par->IsNewline(pos))
                  pos++;
              if (pos < cursor.par->Last())
                  pos++;
              cell++;
          }
		
          /* insert the new cells */ 
          int number = cursor.par->table->NumberOfCellsInRow(cell_org);
          int i;
          for (i=0; i<number; i++)
              cursor.par->InsertChar(pos, LYX_META_NEWLINE);
		
          /* append the row into the table */
          cursor.par->table->AppendContRow(cell_org);
          RedoParagraph();
          return;
      }
      case LyXTable::APPEND_COLUMN: { 
          int pos = 0;
          int cell_org = actCell;
          int cell = 0;
          do{
              if (pos && (cursor.par->IsNewline(pos-1))){
                  if (cursor.par->table->AppendCellAfterCell(cell_org, cell)){
                      cursor.par->InsertChar(pos, LYX_META_NEWLINE);
                      if (pos<=cursor.pos)
                          cursor.pos++;
                      pos++;
                  }
                  cell++;
              }
              pos++;
          } while (pos<= cursor.par->Last());
          /* remember that the very last cell doesn't end with a newline.
             This saves one byte memory per table ;-) */ 
          if (cursor.par->table->AppendCellAfterCell(cell_org, cell))
              cursor.par->InsertChar(cursor.par->Last(), LYX_META_NEWLINE);
		
          /* append the column into the table */ 
          cursor.par->table->AppendColumn(cell_org);
		
          RedoParagraph();
          return;
      }
      case LyXTable::DELETE_ROW:
          if (current_view->currentBuffer()->the_locking_inset)
              UnlockInset(current_view->currentBuffer()->the_locking_inset);
          RemoveTableRow(&cursor);
          RedoParagraph();
          return;
	
      case LyXTable::DELETE_COLUMN: {
          int pos = 0;
          int cell_org = actCell;
          int cell = 0;
          if (current_view->currentBuffer()->the_locking_inset)
              UnlockInset(current_view->currentBuffer()->the_locking_inset);
          do {
              if (!pos || (cursor.par->IsNewline(pos-1))){
                  if (cursor.par->table->DeleteCellIfColumnIsDeleted(cell, cell_org)){
                      // delete one cell
                      while (pos < cursor.par->Last() && !cursor.par->IsNewline(pos))
                          cursor.par->Erase(pos);
                      if (pos < cursor.par->Last())
                          cursor.par->Erase(pos);
                      else 
                          cursor.par->Erase(pos - 1); // the missing newline at the end of a table
                      pos--; // because of pos++ below
                  }   
                  cell++;
              }
              pos++;
          } while (pos<= cursor.par->Last());
		
          /* delete the column from the table */ 
          cursor.par->table->DeleteColumn(cell_org);
		
          /* set the cursor to the beginning of the table, where else? */ 
          cursor.pos = 0;
          RedoParagraph();
          return;
      }
      case LyXTable::TOGGLE_LINE_TOP:
          lineSet = !cursor.par->table->TopLine(actCell);
          if (!selection){
              cursor.par->table->SetTopLine(actCell,lineSet);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetTopLine(n,lineSet);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;
    
      case LyXTable::TOGGLE_LINE_BOTTOM:
          lineSet = !cursor.par->table->BottomLine(actCell);
          if (!selection){
              cursor.par->table->SetBottomLine(actCell,lineSet);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetBottomLine(n,lineSet);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;
		
      case LyXTable::TOGGLE_LINE_LEFT:
          lineSet = !cursor.par->table->LeftLine(actCell);
          if (!selection){
              cursor.par->table->SetLeftLine(actCell,lineSet);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetLeftLine(n,lineSet);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;

      case LyXTable::TOGGLE_LINE_RIGHT:
          lineSet = !cursor.par->table->RightLine(actCell);
          if (!selection){
              cursor.par->table->SetRightLine(actCell,lineSet);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetRightLine(n,lineSet);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;
    
      case LyXTable::ALIGN_LEFT:
      case LyXTable::ALIGN_RIGHT:
      case LyXTable::ALIGN_CENTER:
          if (!selection){
              cursor.par->table->SetAlignment(actCell,setAlign);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetAlignment(n,setAlign);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;
		
      case LyXTable::DELETE_TABLE:
          SetCursorIntern(cursor.par, 0);
          delete cursor.par->table;
          cursor.par->table = 0;
          // temporary: Should put table in simple_cut_buffer (with before and after
          // dummy-paragraph !! 
          // not necessar anymore with UNDO :)
          int i;
          for (i = cursor.par->last-1; i>=0; i--)
	      cursor.par->Erase(i);
          RedoParagraph();
          return;
		
      case LyXTable::MULTICOLUMN: {
          int number = 0;
          // check wether we are completly in a multicol
          int multicol = cursor.par->table->IsMultiColumn(actCell);
          if (multicol && selection && sel_start_cursor.row == sel_end_cursor.row){
	      multicol = NumberOfCell(sel_start_cursor.par, sel_start_cursor.pos)
                  == NumberOfCell(sel_end_cursor.par, sel_end_cursor.pos);
          }

          if (multicol){
	      int newlines = cursor.par->table->UnsetMultiColumn(actCell);
	      int pos = cursor.pos;
	      while (pos<cursor.par->Last() && !cursor.par->IsNewline(pos))
                  pos++;
	      for (;newlines;newlines--)
                  cursor.par->InsertChar(pos, LYX_META_NEWLINE);
	      RedoParagraph();
	      return;
          }
          else {
	      // selection must be in one row (or no selection)
	      if (!selection){
                  cursor.par->table->SetMultiColumn(NumberOfCell(cursor.par,
                                                                 cursor.pos),
                                                    1);
                  RedoParagraph();
                  return;
	      }
	      else {
                  if (sel_start_cursor.row == sel_end_cursor.row){
                      int i;
                      number = 1;
                      for (i=sel_start_cursor.pos; i<sel_end_cursor.pos; i++){
                          if (sel_start_cursor.par->IsNewline(i)){
                              sel_start_cursor.par->Erase(i);
                              // check for double-blanks
                              if ((i && !sel_start_cursor.par->IsLineSeparator(i-1))
                                  &&
                                  (i<sel_start_cursor.par->Last() 
                                   && !sel_start_cursor.par->IsLineSeparator(i)))
                                  sel_start_cursor.par->InsertChar(i, ' ');
                              else {
                                  sel_end_cursor.pos--;
                                  i--;
                              }
                              number++;
                          }
                      }
                      cursor.par->table->
			  SetMultiColumn(NumberOfCell(sel_start_cursor.par,
						      sel_start_cursor.pos),
					 number);
                      cursor.pos = sel_start_cursor.pos;
                      RedoParagraph();
                      return;
                  }
                  else {
                      WriteAlert(_("Impossible Operation!"), 
                                 _("Multicolumns can only be horizontally."), 
                                 _("Sorry."));
                  }
	      }
          }
	  break;
      }
      case LyXTable::SET_ALL_LINES:
          setLines = 1;
      case LyXTable::UNSET_ALL_LINES:
          if (!selection){
              cursor.par->table->SetAllLines(NumberOfCell(cursor.par,
                                                          cursor.pos),
                                             setLines);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetAllLines(n,setLines);
                      m = n;
                  }
              }
          }
          RedoParagraph();
          return;
      case LyXTable::SET_LONGTABLE:
          cursor.par->table->SetLongTable(true);
          return;
      case LyXTable::UNSET_LONGTABLE:
          cursor.par->table->SetLongTable(false);
          return;
      case LyXTable::SET_ROTATE_TABLE:
          cursor.par->table->SetRotateTable(true);
          return;
      case LyXTable::UNSET_ROTATE_TABLE:
          cursor.par->table->SetRotateTable(false);
          return;
      case LyXTable::SET_ROTATE_CELL:
          if (!selection){
              cursor.par->table->SetRotateCell(actCell,true);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetRotateCell(n,true);
                      m = n;
                  }
              }
          }
          return;
      case LyXTable::UNSET_ROTATE_CELL:
          if (!selection){
              cursor.par->table->SetRotateCell(actCell,false);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetRotateCell(n,false);
                      m = n;
                  }
              }
          }
          return;
      case LyXTable::SET_LINEBREAKS:
          what = !cursor.par->table->Linebreaks(cursor.par->table->FirstVirtualCell(actCell));
          if (!selection){
              cursor.par->table->SetLinebreaks(actCell,what);
          } else {
              int i,n=-1,m=-2;
              for (i=sel_start_cursor.pos; i<=sel_end_cursor.pos; i++){
                  if ((n=NumberOfCell(sel_start_cursor.par,i)) != m) {
                      cursor.par->table->SetLinebreaks(n,what);
                      m = n;
                  }
              }
          }
          return;
      case LyXTable::SET_LTFIRSTHEAD:
          cursor.par->table->SetLTHead(actCell,true);
          return;
      case LyXTable::SET_LTHEAD:
          cursor.par->table->SetLTHead(actCell,false);
          return;
      case LyXTable::SET_LTFOOT:
          cursor.par->table->SetLTFoot(actCell,false);
          return;
      case LyXTable::SET_LTLASTFOOT:
          cursor.par->table->SetLTFoot(actCell,true);
          return;
      case LyXTable::SET_LTNEWPAGE:
          what = !cursor.par->table->LTNewPage(actCell);
          cursor.par->table->SetLTNewPage(actCell,what);
          return;
    }
}
	

void LyXText::InsertCharInTable(char c)
{
	Row *row;
	Row *tmprow;
	long y;
	bool jumped_over_space;
	
	/* 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 
	 * difference are the special checks when calculating the row.fill
	 * (blank does not count at the end of a row) and the check here */ 
	
	LyXFont realtmpfont = real_current_font;
	LyXFont rawtmpfont = current_font; /* store the current font.
					    * This is because of the use
					    * of cursor movements. The moving
					    * cursor would refresh the 
					    * current font */

	// Get the font that is used to calculate the baselineskip
	int const lastpos = cursor.par->Last();
	LyXFont rawparfont = cursor.par->GetFontSettings(lastpos - 1);

	jumped_over_space = false;
	if (IsLineSeparatorChar(c)) {
		
		/* avoid double blanks but insert the new blank because
		 * of a possible font change */
		if (cursor.pos < lastpos &&
		    cursor.par->IsLineSeparator(cursor.pos))
		{
			cursor.par->Erase(cursor.pos);
			jumped_over_space = true;
		}
		else if ((cursor.pos > 0 && 
			  cursor.par->IsLineSeparator(cursor.pos - 1))
			 || (cursor.pos > 0 && cursor.par->IsNewline(cursor.pos - 1))
			  || (cursor.pos == 0 &&
			      !(cursor.par->Previous()
			      && cursor.par->Previous()->footnoteflag
			      == LyXParagraph::OPEN_FOOTNOTE)))
			return;
	}
	else if (IsNewlineChar(c)) {
            if (!IsEmptyTableCell()) {
                TableFeatures(LyXTable::APPEND_CONT_ROW);
                CursorDown();
            }
	  /* the newline character is the separator of the cells */
	  // cursor.par->InsertChar(cursor.pos, c);
	  // SetCharFont(cursor.par, cursor.pos, rawtmpfont);
	  // RedoParagraphs(cursor, cursor.par->Next());
	  // SetCursor(cursor.par, cursor.pos+1);
	  return;
	}
   
	row = cursor.row;
	y = cursor.y - row->baseline;
	if (c != LYX_META_INSET)	/* in this case LyXText::InsertInset 
					 * already inserted the character */
		cursor.par->InsertChar(cursor.pos, c);
	SetCharFont(cursor.par, cursor.pos, rawtmpfont);

	if (!jumped_over_space) {
		/* refresh the positions */
		tmprow = row;
		while (tmprow->next && tmprow->next->par == row->par) {
			tmprow = tmprow->next;
			tmprow->pos++;
		}
	}

	cursor.pos++;

	CheckParagraphInTable(cursor.par, cursor.pos);
	
	current_font = rawtmpfont;
	real_current_font = realtmpfont;
	
	/* check, whether the last character's font has changed. */
	if (cursor.pos && cursor.pos == cursor.par->Last()
	    && rawparfont != rawtmpfont)
		RedoHeightOfParagraph(cursor);
}


void LyXText::CheckParagraphInTable(LyXParagraph* par, int pos)
{
	Row *row;
	long y;
	
	if (par->GetChar(pos) == LYX_META_INSET &&
	    par->GetInset(pos) && par->GetInset(pos)->Display()){
	  par->GetInset(pos)->SetDisplay(false);
	}

	row = GetRow(par, pos, y);
	
	int tmpheight = row->height;
	SetHeightOfRow(row);
	
	int tmp_pos = pos;
	/* update the table information */
	while (tmp_pos && !par->IsNewline(tmp_pos - 1))
		tmp_pos--;
	if (par->table->SetWidthOfCell(NumberOfCell(par, pos),
				       WidthOfCell(par, tmp_pos))) {
		LyXCursor tmpcursor = cursor;
		SetCursorIntern(par, pos);
		/* make a complete redraw */
		RedoDrawingOfParagraph(cursor);
		cursor = tmpcursor;
	}
	else {
		/* redraw only the row */
		LyXCursor tmpcursor = cursor;
		SetCursorIntern(par, pos);
		refresh_y = y;
		refresh_x = cursor.x;
		refresh_row = row;
		refresh_pos = cursor.pos;
		cursor = tmpcursor;
		
		if (tmpheight == row->height)
			status = LyXText::NEED_VERY_LITTLE_REFRESH;
		else
			status = LyXText::NEED_MORE_REFRESH;
	}
        SetCursorIntern(cursor.par, cursor.pos);
}


void LyXText::BackspaceInTable()
{
	Row *tmprow, *row;
	long y;
	
	LyXFont rawtmpfont = current_font;
	LyXFont realtmpfont = real_current_font;

	// Get the font that is used to calculate the baselineskip
	int const lastpos = cursor.par->Last();
	LyXFont rawparfont = cursor.par->GetFontSettings(lastpos - 1);
	
	if (cursor.pos == 0) {
		/* no pasting of table paragraphs */
		
		CursorLeft();
	}
	else {
		/* this is the code for a normal backspace, not pasting
		 * any paragraphs */ 
	  SetUndo(Undo::DELETE, 
		  cursor.par->ParFromPos(cursor.pos)->previous, 
		  cursor.par->ParFromPos(cursor.pos)->next); 
	  
		CursorLeftIntern();
		
		/* some insets are undeletable here */
		if (cursor.par->GetChar(cursor.pos)==LYX_META_INSET) {
			if (!cursor.par->GetInset(cursor.pos)->Deletable())
				return;
		}
		
		row = cursor.row;
		y = cursor.y - row->baseline;
		
		/* some special code when deleting a newline. */
		if (cursor.par->IsNewline(cursor.pos)) {
			/* nothing :-) */
			return;
		}
		else {
			cursor.par->Erase(cursor.pos);
			
			/* refresh the positions */
			tmprow = row;
			while (tmprow->next && tmprow->next->par == row->par) {
				tmprow = tmprow->next;
				tmprow->pos--;
			}
			
			/* delete superfluous blanks */ 
			if (cursor.pos < cursor.par->Last() - 1 &&
			(cursor.par->IsLineSeparator(cursor.pos))) {
				
				if (cursor.pos == BeginningOfMainBody(cursor.par)
				|| !cursor.pos 
				|| cursor.par->IsLineSeparator(cursor.pos - 1)) {
					cursor.par->Erase(cursor.pos);
					/* refresh the positions */
					tmprow = row;
					while (tmprow->next && 
					       tmprow->next->par == row->par) {
						tmprow = tmprow->next;
						tmprow->pos--;
					}
					if (cursor.pos)   /* move one character left */
						cursor.pos--;
				}
			}
		}
      
		CheckParagraphInTable(cursor.par, cursor.pos);
      
		/* check, wether the last characters font has changed. */ 
		if (cursor.pos && cursor.pos == cursor.par->Last()
		    && rawparfont != rawtmpfont)
			RedoHeightOfParagraph(cursor);

		/* restore the current font 
		 * That is what a user expects! */
		current_font = rawtmpfont;
		real_current_font = realtmpfont;
	}
	SetCursorIntern(cursor.par, cursor.pos);
}

/* table stuff -- end*/


/* just a macro to make some thing easier. */ 
void LyXText::RedoParagraph()
{
  LyXCursor tmpcursor = cursor;
  ClearSelection();
  RedoParagraphs(cursor, cursor.par->Next());;
  SetCursorIntern(tmpcursor.par, tmpcursor.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)
{
	Row *row;
	Row *tmprow;
	int z;
	long y;
	bool jumped_over_space;
	LyXFont realtmpfont;
	LyXFont rawtmpfont;
	int lastpos;
	LyXFont rawparfont;
   
	SetUndo(Undo::INSERT, 
		cursor.par->ParFromPos(cursor.pos)->previous, 
		cursor.par->ParFromPos(cursor.pos)->next);

	/* When the free-spacing option is set for the current layout,
	 * all spaces are converted to protected spaces. */
	bool freeSpacingBo =
		lyxstyle.Style(parameters->textclass,
			       cursor.row->par->GetLayout())->free_spacing;
	//
	// Is this wanted? There cannot be a line break between protected
	// separators. Therefore I suggest the way implemented below
	// (Matthias)
	//
	//   if ( freeSpacingBo && IsLineSeparatorChar(c) )
	//	   c = LYX_META_PROTECTED_SEPARATOR;
   
	if (freeSpacingBo && IsLineSeparatorChar(c) 
	    && (!cursor.pos || cursor.par->IsLineSeparator(cursor.pos-1))) 
		c = LYX_META_PROTECTED_SEPARATOR;
   
	/* table stuff -- begin*/
  	if (cursor.par->table) {
		InsertCharInTable(c);
		goto out;
	}
	/* table stuff -- end*/
   
	/* 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 
	 * difference are the special checks when calculating the row.fill
	 * (blank does not count at the end of a row) and the check here */ 

	// The bug is triggered when we type in a description environment:
	// The current_font is not changed when we go from label to main text
	// and it should (along with realtmpfont) when we type the space.
#ifdef WITH_WARNINGS
#warning There is a bug here! (Asger)
#endif
	
	realtmpfont = real_current_font;
	rawtmpfont = current_font;  /* store the current font.
				     * This is because of the use
				     * of cursor movements. The moving
				     * cursor would refresh the 
				     * current font */

	// Get the font that is used to calculate the baselineskip
	lastpos = cursor.par->Last();
	rawparfont = cursor.par->GetFontSettings(lastpos - 1);

	jumped_over_space = false;
   
	if (IsLineSeparatorChar(c)) {
	   
		if (cursor.pos < lastpos
		    && cursor.par->IsLineSeparator(cursor.pos)) {
			/* the user inserted a space before a space. So we
			 * will just make a CursorRight. BUT: The font of this
			 * space should be set to current font. That is why
			 * we need to rebreak perhaps. If there is a protected
			 * blank at the end of a row we have to force
			 * a rebreak.*/ 
	   
			minibuffer->Set(_("You cannot type two spaces this way.  Please read the Tutorial."));
			if (cursor.pos == RowLast(cursor.row)
			    && !IsLineSeparatorChar(c))
				cursor.row->fill = -1;    /* force rebreak  */
	   
			cursor.par->Erase(cursor.pos);
			jumped_over_space = true;
	   
		} else if ((cursor.pos > 0 
			    && cursor.par->IsLineSeparator(cursor.pos - 1))
			   || (cursor.pos > 0
			       && cursor.par->IsNewline(cursor.pos - 1))
			   || (cursor.pos == 0
			       && !(cursor.par->Previous()
				    && cursor.par->Previous()->footnoteflag
				    == LyXParagraph::OPEN_FOOTNOTE))) {
	   		if (cursor.pos == 0 )
				minibuffer->Set(_("You cannot insert a space at the beginning of a paragraph.  Please read the Tutorial."));
			else
				minibuffer->Set(_("You cannot type two spaces this way.  Please read the Tutorial."));
			goto out;
		}
	} else if (IsNewlineChar(c)) {
		if (cursor.par->FirstPhysicalPar() == cursor.par
		    && cursor.pos <= BeginningOfMainBody(cursor.par))
			goto out;
		/* no newline at first position 
		 * of a paragraph or behind labels. 
		 * TeX does not allow that. */
		
		if (cursor.pos < cursor.par->Last() &&
		    cursor.par->IsLineSeparator(cursor.pos))
			CursorRightIntern(); // newline always after a blank!
		cursor.row->fill = -1;	       // to force a new break
	}
   
	/* the display inset stuff */ 
	if (cursor.row->par->GetChar(cursor.row->pos) == LYX_META_INSET
	    && cursor.row->par->GetInset(cursor.row->pos)
	    && cursor.row->par->GetInset(cursor.row->pos)->Display())
		cursor.row->fill = -1; // to force a new break  

	/* get the cursor row fist */
	/* this is a dumb solution, i will try to hold the cursor.row
	   in future */ 
	/* row = GetRow(cursor.par, cursor.pos, y);*/
	/* ok, heres a better way: */ 
	row = cursor.row;
	y = cursor.y - row->baseline;
	if (c != LYX_META_INSET)  /* in this case LyXText::InsertInset 
				   * already insertet the character */
		cursor.par->InsertChar(cursor.pos, c);
	SetCharFont(cursor.par, cursor.pos, rawtmpfont);

	if (!jumped_over_space) {
		/* refresh the positions */
		tmprow = row;
		while (tmprow->next && tmprow->next->par == row->par) {
			tmprow = tmprow->next;
			tmprow->pos++;
		}
	}
   
	/* Is there a break one row above */ 
	if ((cursor.par->IsLineSeparator(cursor.pos)
	     || cursor.par->IsNewline(cursor.pos)
	     || cursor.row->fill == -1)
	    && row->previous && row->previous->par == row->par) {
		z = NextBreakPoint(row->previous, paperwidth);
		if ( z >= row->pos) {
			row->pos = z + 1;
			
			/* set the dimensions of the row above  */ 
			row->previous->fill = Fill(row->previous, paperwidth);

			SetHeightOfRow(row->previous);
	     
			y -= row->previous->height;
			refresh_y = y;
			refresh_row = row->previous;
			status = LyXText::NEED_MORE_REFRESH;
	     
			BreakAgainOneRow(row);
			SetCursor(cursor.par, cursor.pos + 1);
			/* cursor MUST be in row now */
	     
			if (row->next && row->next->par == row->par)
				need_break_row = row->next;
			else
				need_break_row = 0;

			current_font = rawtmpfont;
			real_current_font = realtmpfont;
	     
			// check, wether the last characters font has changed. 
			if (cursor.pos && cursor.pos == cursor.par->Last()
			    && rawparfont != rawtmpfont)
				RedoHeightOfParagraph(cursor);
			
			goto out;
		}
	}
   
	/* recalculate the fill of the row */ 
	if (row->fill >= 0)  /* needed because a newline
			      * will set fill to -1. Otherwise
			      * we would not get a rebreak! */
		row->fill = Fill(row, paperwidth);
	if (row->fill < 0 ) {
		refresh_y = y;
		refresh_row = row; 
		refresh_x = cursor.x;
		refresh_pos = cursor.pos;
		status = LyXText::NEED_MORE_REFRESH;
		BreakAgainOneRow(row); 
		/* will the cursor be in another row now? */ 
		if (RowLast(row) <= cursor.pos + 1 && row->next) {
			if (row->next && row->next->par == row->par)
				/* this should
				 * always be true */
				row = row->next;
			BreakAgainOneRow(row);
		}
		SetCursor(cursor.par, cursor.pos + 1);
		if (row->next && row->next->par == row->par)
			need_break_row = row->next;
		else
			need_break_row = 0;
		
		current_font = rawtmpfont;
		real_current_font = realtmpfont;
	} else {
		refresh_y = y;
		refresh_x = cursor.x;
		refresh_row = row;
		refresh_pos = cursor.pos;
		
		int tmpheight = row->height;
		SetHeightOfRow(row);
		if (tmpheight == row->height)
			status = LyXText::NEED_VERY_LITTLE_REFRESH;
		else
			status = LyXText::NEED_MORE_REFRESH;
            
		SetCursor(cursor.par, cursor.pos + 1);
		current_font = rawtmpfont;
		real_current_font = realtmpfont;
	}

	/* check, wether the last characters font has changed. */ 
	if (cursor.pos && cursor.pos == cursor.par->Last()
	    && rawparfont != rawtmpfont) {
		RedoHeightOfParagraph(cursor);
	} else {
		/* now the special right address boxes */
		if (lyxstyle.Style(parameters->textclass,
				   cursor.par->GetLayout())->margintype
		    == MARGIN_RIGHT_ADDRESS_BOX) {
			RedoDrawingOfParagraph(cursor); 
		}
	}
  out:

	// Here we could call FinishUndo for every 20 characters inserted.
	// This is from my experience how emacs does it.
	static unsigned short counter = 0;
	if (counter < 20) {
		++counter;
	} else {
		FinishUndo();
		counter = 0;
	}
	return;
}
   
   
void LyXText::PrepareToPrint(Row *row, float &x, float &fill_separator, 
			     float &fill_hfill, float &fill_label_hfill)
{
	float w, nh, nlh, ns;
	
	w = row->fill;
	fill_hfill = 0;
	fill_label_hfill = 0;
	fill_separator = 0;
	fill_label_hfill = 0;
	
	x = LeftMargin(row);
	
	/* is there a manual margin with a manual label */ 
	if (lyxstyle.Style(parameters->textclass,
			   row->par->GetLayout())->margintype == MARGIN_MANUAL
	    && lyxstyle.Style(parameters->textclass,
			      row->par->GetLayout())->labeltype == LABEL_MANUAL) {
	       
		nlh = NumberOfLabelHfills(row) + 1; /* one more since labels 
						    * are left aligned*/ 
		if (nlh && !row->par->GetLabelWidthString().empty()) {
			fill_label_hfill = LabelFill(row) / nlh;
		}
	}
		
	/* are there any hfills in the row? */ 
	nh = NumberOfHfills(row);
	
/* table stuff -- begin*/
	if (row->par->table) {
	   w = paperwidth - row->par->table->WidthOfTable()
	   - x - RightMargin(row);
	   nh = 0; /* ignore hfills in tables */ 
	}
/* table stuff -- end*/

	if (nh)
	  fill_hfill = w /nh;
	else  {
	   /* is it block, flushleft or flushright? 
	    * set x how you need it */
	   int align;
	   if (row->par->FirstPhysicalPar()->align == LYX_ALIGN_LAYOUT)
	     align = lyxstyle.Style(parameters->textclass, row->par->GetLayout())->align;
	   else
	     align = row->par->FirstPhysicalPar()->align;
	   
	   /* center displayed insets */ 
	   if (row->par->GetChar(row->pos) == LYX_META_INSET
	       && row->par->GetInset(row->pos)
	       && row->par->GetInset(row->pos)->Display())
	     align = LYX_ALIGN_CENTER;

	   switch (align) {
	    case LYX_ALIGN_BLOCK:
	      ns = NumberOfSeparators(row);
	      if (ns && row->next && row->next->par == row->par &&
		  !(row->next->par->IsNewline(row->next->pos-1))
		  && !(row->next->par->GetChar(row->next->pos) == LYX_META_INSET
		       && row->next->par->GetInset(row->next->pos)
		       && row->next->par->GetInset(row->next->pos)->Display())
		  )
	      	fill_separator = w / ns;
	      break;
	    case LYX_ALIGN_RIGHT:
	      x += w;
	      break;
	    case LYX_ALIGN_CENTER:
	      x += w / 2;
	      break;
	   }
	}
     }

      
/* 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()
{
	// treat floats, HFills and Insets as words
	LyXCursor tmpcursor = cursor;

	if (tmpcursor.pos == tmpcursor.par->Last()
	    && tmpcursor.par->Next())
	{
			tmpcursor.par = tmpcursor.par->Next();
			tmpcursor.pos = 0;
	} else {
		int steps = 0;

		// Skip through initial nonword stuff.
		while ( tmpcursor.pos < tmpcursor.par->Last() &&
			! tmpcursor.par->IsWord( tmpcursor.pos ) ) 
		{
		  //    printf("Current pos1 %d",tmpcursor.pos) ;
			tmpcursor.pos++;
			steps++;
		}
		// Advance through word.
		while ( tmpcursor.pos < tmpcursor.par->Last() &&
		        tmpcursor.par->IsWord( tmpcursor.pos ) )
		{
		  //     printf("Current pos2 %d",tmpcursor.pos) ;
			tmpcursor.pos++;
			steps++;
		}
	}
	SetCursor(tmpcursor.par, tmpcursor.pos);
}


void LyXText::CursorTab()
{
    if (cursor.par->table) {
        int cell = NumberOfCell(cursor.par, cursor.pos);
        while(cursor.par->table->IsContRow(cell)) {
            CursorUp();
            cell = NumberOfCell(cursor.par, cursor.pos);
        }
        if (cursor.par->table->ShouldBeVeryLastCell(cell))
            TableFeatures(LyXTable::APPEND_ROW);
    }
    LyXCursor tmpcursor = cursor;
    while (tmpcursor.pos < tmpcursor.par->Last()
           && !tmpcursor.par->IsNewline(tmpcursor.pos))
        tmpcursor.pos++;
   
    if (tmpcursor.pos == tmpcursor.par->Last()){
        if (tmpcursor.par->Next()) {
            tmpcursor.par = tmpcursor.par->Next();
            tmpcursor.pos = 0;
        }
    }
    else
        tmpcursor.pos++;
    SetCursor(tmpcursor.par, tmpcursor.pos);
    if (cursor.par->table) {
        int cell = NumberOfCell(cursor.par, cursor.pos);
        while (cursor.par->table->IsContRow(cell) &&
               !cursor.par->table->ShouldBeVeryLastCell(cell)) {
            tmpcursor = cursor;
            while (tmpcursor.pos < tmpcursor.par->Last()
                   && !tmpcursor.par->IsNewline(tmpcursor.pos))
                tmpcursor.pos++;
   
            if (tmpcursor.pos == tmpcursor.par->Last()){
                if (tmpcursor.par->Next()) {
                    tmpcursor.par = tmpcursor.par->Next();
                    tmpcursor.pos = 0;
                }
            }
            else
                tmpcursor.pos++;
            SetCursor(tmpcursor.par, tmpcursor.pos);
            cell = NumberOfCell(cursor.par, cursor.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() 
{
	// treat HFills, floats and Insets as words
	LyXCursor tmpcursor = cursor;
	while (tmpcursor.pos 
	       && (tmpcursor.par->IsSeparator(tmpcursor.pos - 1) 
		   || tmpcursor.par->IsKomma(tmpcursor.pos - 1))
	       && !(tmpcursor.par->IsHfill(tmpcursor.pos - 1)
	            || tmpcursor.par->IsFloat(tmpcursor.pos - 1)
		    || tmpcursor.par->IsInset(tmpcursor.pos - 1)))
		tmpcursor.pos--;

	if (tmpcursor.pos
	    && (tmpcursor.par->IsInset(tmpcursor.pos - 1)
	        || tmpcursor.par->IsFloat(tmpcursor.pos - 1)
		|| tmpcursor.par->IsHfill(tmpcursor.pos - 1))) {
		tmpcursor.pos--;
	} else if (!tmpcursor.pos) {
		if (tmpcursor.par->Previous()){
			tmpcursor.par = tmpcursor.par->Previous();
			tmpcursor.pos = tmpcursor.par->Last();
		}
	} else {		// Here, tmpcursor != 0 
		while (tmpcursor.pos > 0 &&
		       tmpcursor.par->IsWord(tmpcursor.pos-1) )
			tmpcursor.pos-- ;
	}
	SetCursor(tmpcursor.par, tmpcursor.pos);
}

/* -------> Select current word. This depends on behaviour of CursorLeftOneWord(), so it is
			patched as well. */

void LyXText::SelectWord() 
{
	/* Move cursor to the beginning, when not already there. */
	if ( cursor.pos
	     && !cursor.par->IsSeparator(cursor.pos-1)
	     && !cursor.par->IsKomma(cursor.pos-1) )
		CursorLeftOneWord();

	/* set the sel cursor */
	sel_cursor = cursor;

	while ( cursor.pos < cursor.par->Last()
			&& !cursor.par->IsSeparator(cursor.pos)
			&& !cursor.par->IsKomma(cursor.pos) )
		cursor.pos++;
	SetCursor( cursor.par, cursor.pos );
	
	/* finally set the selection */ 
	SetSelection();
}


/* -------> Select the word currently under the cursor when:
			1: no selection is currently set,
			2: the cursor is not at the borders of the word. */

int LyXText::SelectWordWhenUnderCursor() 
{
	if ( selection ) return 0;
	if ( cursor.pos < cursor.par->Last()
		 && !cursor.par->IsSeparator(cursor.pos)
		 && !cursor.par->IsKomma(cursor.pos)
		 && cursor.pos 
		 && !cursor.par->IsSeparator(cursor.pos -1)
		 && !cursor.par->IsKomma(cursor.pos -1) ) {
		SelectWord();
		return 1;
	}
	return 0;
}


// This function is only used by the spellchecker for NextWord().
// It doesn't handle LYX_ACCENTs and probably never will.
char* LyXText::SelectNextWord(float &value)
{
	LyXParagraph* 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->previous) {
		while (cursor.pos < cursor.par->Last()
		       && cursor.par->IsLetter(cursor.pos))
			cursor.pos++;
	}
	// Now, skip until we have real text (will jump paragraphs)
	while ((cursor.par->Last() > cursor.pos
		&& (!cursor.par->IsLetter(cursor.pos)
		    || cursor.par->getFont(cursor.pos).latex() == LyXFont::ON))
	       || (cursor.par->Last() == cursor.pos
		   && cursor.par->Next())){
		if (cursor.pos == cursor.par->Last()) {
			cursor.par = cursor.par->Next();
			cursor.pos = 0;
		}
		else
			cursor.pos++;
	}
  
	// 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 */
	sel_cursor = cursor;

	string latex;
   
	/* and find the end of the word 
	   (optional hyphens are part of a word) */
	while (cursor.pos < cursor.par->Last()
	       && (cursor.par->IsLetter(cursor.pos)) 
	           || (cursor.par->GetChar(cursor.pos) == LYX_META_INSET &&
		       cursor.par->GetInset(cursor.pos) != 0 &&
		       cursor.par->GetInset(cursor.pos)->Latex(latex,0)==0 &&
		       latex == "\\-"))
		cursor.pos++;

	// Finally, we copy the word to a string and return it
	char* string = 0;

	if (sel_cursor.pos < cursor.pos) {
		string = new char [cursor.pos - sel_cursor.pos + 2];
		int i,j;
		
		for (i=sel_cursor.pos, j=0; i<cursor.pos; i++) {
			if (cursor.par->GetChar(i) != LYX_META_INSET)
				string[j++] = cursor.par->GetChar(i);
		}
		string[j] = '\0';
	}
	return string;
}


// This one is also only for the spellchecker
void LyXText::SelectSelectedWord()
{
	/* move cursor to the beginning */
	SetCursor(sel_cursor.par, sel_cursor.pos);
	
	/* set the sel cursor */
	sel_cursor = cursor;

	string latex;
	
	/* now find the end of the word */
	while (cursor.pos < cursor.par->Last()
	       && (cursor.par->IsLetter(cursor.pos)
	           || (cursor.par->GetChar(cursor.pos) == LYX_META_INSET &&
		       cursor.par->GetInset(cursor.pos) != 0 &&
		       cursor.par->GetInset(cursor.pos)->Latex(latex,0)==0 &&
		       latex == "\\-")))
		cursor.pos++;
	
	SetCursor(cursor.par, cursor.pos);
	
	/* finally set the selection */ 
	SetSelection();
}


/* -------> Delete from cursor up to the end of the current or next word. */
void LyXText::DeleteWordForward()
{
	LyXCursor tmpcursor = cursor;
        
	if (!cursor.par->Last())
		CursorRight();
	else {
		/* -------> Skip initial non-word stuff. */
		while ( cursor.pos < cursor.par->Last() 
			&& (cursor.par->IsSeparator(cursor.pos)
			    || cursor.par->IsKomma(cursor.pos)) )
			cursor.pos++;
		
		SetCursorIntern(cursor.par, cursor.pos);
		selection = True; // to avoid deletion 
		CursorRightOneWord();
		sel_cursor = cursor;
		cursor = tmpcursor;
		SetSelection(); 
		
		/* -----> Great, CutSelection() gets rid of multiple spaces. */
		CutSelection();
	}
}


/* -------> Delete from cursor to start of current or prior word. */
void LyXText::DeleteWordBackward()
{
       LyXCursor tmpcursor = cursor;
       if (!cursor.par->Last())
         CursorLeft();
       else{
         selection = True; // to avoid deletion 
         CursorLeftOneWord();
         sel_cursor = cursor;
         cursor = tmpcursor;
         SetSelection();
         CutSelection();
       }
}


/* -------> Kill to end of line. */
void LyXText::DeleteLineForward()
{
	LyXCursor tmpcursor = cursor;
	if (!cursor.par->Last())
		CursorRight();
	else {
		CursorEnd();
		sel_cursor = cursor;
		cursor = tmpcursor;
		SetSelection();
		if (selection == false) {
			DeleteWordForward();
		} else {
			CutSelection();
		}
	}
}

// Change the case of a word at cursor position. The meaning of action
// is:
// 0  change to lowercase
// 1  capitalize word
// 2  change to uppercase
// This function directly manipulates LyXParagraph::text because there
// is no LyXParagraph::SetChar currently. I did what I could to ensure
// that it is correct. I guess part of it should be moved to
// LyXParagraph, but it will have to change for 1.1 anyway. At least
// it does not access outside of the allocated array as the older
// version did. (JMarc) 
void LyXText::ChangeWordCase(int action) 
{
	LyXParagraph *tmppar = cursor.par->ParFromPos(cursor.pos);
	int tmppos = cursor.par->PositionInParFromPos(cursor.pos);

	SetUndo(Undo::FINISH, tmppar->previous, tmppar->next); 

	while (tmppos < tmppar->last) {
		unsigned char c = tmppar->text[tmppos];
		if (IsKommaChar(c) || IsLineSeparatorChar(c))
			break;
		if (c != LYX_META_INSET) {
			switch (action) {
			case 0:
				c = tolower(c);
				break;
			case 1:
				c = toupper(c);
				action = 0;
				break;
			case 2:
				c = toupper(c);
				break;
			}
		}
		
		tmppar->text[tmppos] = c;
		tmppos++;
	}
	CheckParagraph(tmppar, tmppos);
	CursorRightOneWord();
}


void  LyXText::Delete()
{
   LyXCursor old_cursor = cursor;
   LyXCursor tmpcursor;
   /* this is a very easy implementation*/ 
   
   /* just move to the right */ 
   CursorRightIntern();
   
   if (cursor.par->previous == old_cursor.par->previous
       && cursor.par != old_cursor.par)
     return; // delete-emty-paragraph-mechanism has done it
   
   /* if you had success make a backspace */ 
   if (old_cursor.par != cursor.par || old_cursor.pos != cursor.pos) {
     tmpcursor = cursor;
     cursor = old_cursor; // to make sure undo gets the right cursor position
     SetUndo(Undo::DELETE, 
	     cursor.par->ParFromPos(cursor.pos)->previous, 
	     cursor.par->ParFromPos(cursor.pos)->next); 
     cursor = tmpcursor;
     Backspace();
   }
}


void  LyXText::Backspace()
{
	LyXParagraph *tmppar;
	Row *tmprow, *row;
	long y;
	int tmpheight;

	/* table stuff -- begin*/
   
	if (cursor.par->table) {
		BackspaceInTable();
		return;
	}
	/* table stuff -- end*/
	
	LyXFont rawtmpfont = current_font;
	LyXFont realtmpfont = real_current_font;
   
	// Get the font that is used to calculate the baselineskip
	int const lastpos = cursor.par->Last();
	LyXFont rawparfont = cursor.par->GetFontSettings(lastpos - 1);

	if (cursor.pos == 0) {
		/* we may paste some paragraphs */
      
		/* is it an empty paragraph? */
      
		if ((lastpos == 0
		     || (lastpos == 1 && cursor.par->IsSeparator(0)))
		    && !(cursor.par->Next() 
			 && cursor.par->footnoteflag ==
			 LyXParagraph::NO_FOOTNOTE
			 && cursor.par->Next()->footnoteflag ==
			 LyXParagraph::OPEN_FOOTNOTE)) {
			
			if (cursor.par->previous) {
				tmppar = cursor.par->previous->FirstPhysicalPar();
				if (cursor.par->GetLayout() == tmppar->GetLayout()
				    && cursor.par->footnoteflag == tmppar->footnoteflag
				    && cursor.par->GetAlign() == tmppar->GetAlign()) {
					
					tmppar->line_bottom = cursor.par->line_bottom;
					tmppar->added_space_bottom = cursor.par->added_space_bottom;
					tmppar->pagebreak_bottom = cursor.par->pagebreak_bottom;
				}
				
				CursorLeftIntern();
		     
				/* the layout things can change the height of a row ! */ 
				tmpheight = cursor.row->height;
				SetHeightOfRow(cursor.row);
				if (cursor.row->height != tmpheight) {
					refresh_y = cursor.y - cursor.row->baseline;
					refresh_row = cursor.row;
					status = LyXText::NEED_MORE_REFRESH;
				}
				return;
			}
		}
		if (cursor.par->ParFromPos(cursor.pos)->previous){
			SetUndo(Undo::DELETE, 
				cursor.par->ParFromPos(cursor.pos)->previous->previous, 
				cursor.par->ParFromPos(cursor.pos)->next); 
		}
		tmppar = cursor.par;
		tmprow = cursor.row;
		CursorLeftIntern();
		/* Pasting is not allowed, if the paragraphs have different layout.
		 * I think it is a real bug of all other word processors to allow
		 * it. It confuses the user. Even so with a footnote paragraph and
		 * a non-footnote paragraph. I will not allow pasting in this case, 
		 * because the user would be confused if the footnote behaves 
		 * different wether it is open or closed.
		 * 
		 * Correction: Pasting is always allowed with standard-layout */
		if (cursor.par != tmppar
		    && (cursor.par->GetLayout() == tmppar->GetLayout()
			|| !tmppar->GetLayout())
		    && cursor.par->footnoteflag == tmppar->footnoteflag
		    /* table stuff -- begin*/
		    && !cursor.par->table /* no pasting of tables */ 
		    /* table stuff -- end*/
		    && cursor.par->GetAlign() == tmppar->GetAlign()) {
			
			cursor.par->PasteParagraph();
			
			if (!(cursor.pos &&
			      cursor.par->IsSeparator(cursor.pos - 1)))
				cursor.par->InsertChar(cursor.pos, ' ');
			else
				if (cursor.pos)
					cursor.pos--;
			
			status = LyXText::NEED_MORE_REFRESH;
			refresh_row = cursor.row;
			refresh_y = cursor.y - cursor.row->baseline;
			
			/* remove the lost paragraph */
			RemoveParagraph(tmprow);
			RemoveRow(tmprow);  
			
			/* break the paragraph again */ 
			/* BreakAgain(cursor.row); */ 
			
			AppendParagraph(cursor.row);
			UpdateCounters(cursor.row);
			
			/* the row may have changed, block, hfills etc. */ 
			SetCursor(cursor.par, cursor.pos);
		}
	} else  {
		/* this is the code for a normal backspace, not pasting
		 * any paragraphs */ 
		SetUndo(Undo::DELETE, 
			cursor.par->ParFromPos(cursor.pos)->previous, 
			cursor.par->ParFromPos(cursor.pos)->next); 
		CursorLeftIntern();
		
		/* some insets are undeletable here */
		if (cursor.par->GetChar(cursor.pos)==LYX_META_INSET) {
			if (!cursor.par->GetInset(cursor.pos)->Deletable())
				return; 
			/* force complete redo when erasing display insets */ 
			/* this is a cruel mathod but save..... Matthias */ 
			if (cursor.par->GetInset(cursor.pos)->Display()){
				cursor.par->Erase(cursor.pos);
				RedoParagraph();
				return;
			}
		}
		
		row = cursor.row;
		y = cursor.y - row->baseline;
		int z;
		
		/* remember that a space at the end of a row doesnt count
		 * when calculating the fill */ 
		if (cursor.pos < RowLast(row) ||
		    !cursor.par->IsLineSeparator(cursor.pos)) {
			row->fill += SingleWidth(cursor.par, cursor.pos);
		}
		
		/* some special code when deleting a newline. This is similar
		 * to the behavior when pasting paragraphs */ 
		if (cursor.pos && cursor.par->IsNewline(cursor.pos)) {
			cursor.par->Erase(cursor.pos);
			/* refresh the positions */
			tmprow = row;
			while (tmprow->next && tmprow->next->par == row->par) {
				tmprow = tmprow->next;
				tmprow->pos--;
			}
			if (cursor.par->IsLineSeparator(cursor.pos - 1))
				cursor.pos--;
			
			if (cursor.pos < cursor.par->Last() && !cursor.par->IsSeparator(cursor.pos)) {
				cursor.par->InsertChar(cursor.pos, ' ');
				/* refresh the positions */
				tmprow = row;
				while (tmprow->next && tmprow->next->par == row->par) {
					tmprow = tmprow->next;
					tmprow->pos++;
				}
			}
		} else {
			cursor.par->Erase(cursor.pos);
			
			/* refresh the positions */
			tmprow = row;
			while (tmprow->next && tmprow->next->par == row->par) {
				tmprow = tmprow->next;
				tmprow->pos--;
			}
			
			/* delete superfluous blanks */ 
			if (cursor.pos < cursor.par->Last() - 1 &&
			    (cursor.par->IsLineSeparator(cursor.pos))) {
				
				if (cursor.pos == BeginningOfMainBody(cursor.par)
				    || !cursor.pos 
				    || cursor.par->IsLineSeparator(cursor.pos - 1)) {
					cursor.par->Erase(cursor.pos);
					/* refresh the positions */
					tmprow = row;
					while (tmprow->next && 
					       tmprow->next->par == row->par) {
						tmprow = tmprow->next;
						tmprow->pos--;
					}
					if (cursor.pos)   /* move one character left */
						cursor.pos--;
				}
			}
			
			/* delete newlines at the beginning of paragraphs */ 
			while (cursor.par->Last() &&
			       cursor.par->IsNewline(cursor.pos) &&
			       cursor.pos == BeginningOfMainBody(cursor.par)
				) {
				cursor.par->Erase(cursor.pos);
				/* refresh the positions */
				tmprow = row;
				while (tmprow->next && 
				       tmprow->next->par == row->par) {
					tmprow = tmprow->next;
					tmprow->pos--;
				}
			}
		}
		
		/* is there a break one row above */ 
		if (row->previous && row->previous->par == row->par) {
			z = NextBreakPoint(row->previous, paperwidth);
			if ( z >= row->pos) {
				row->pos = z + 1;
				
				tmprow = row->previous;
				
				/* maybe the current row is now empty */ 
				if (row->pos >= row->par->Last()) {
					/* remove it */ 
					RemoveRow(row);
					need_break_row = 0;
				}
				else  {
					BreakAgainOneRow(row);
					if (row->next && row->next->par == row->par)
						need_break_row = row->next;
					else
						need_break_row = 0;
				}
				
				/* set the dimensions of the row above  */ 
				y -= tmprow->height;
				tmprow->fill = Fill(tmprow, paperwidth);
				SetHeightOfRow(tmprow);
				
				refresh_y = y;
				refresh_row = tmprow;
				status = LyXText::NEED_MORE_REFRESH;
				SetCursor(cursor.par, cursor.pos);
				current_font = rawtmpfont;
				real_current_font = realtmpfont;
				/* check, whether the last character's font has changed. */
				rawtmpfont = cursor.par->GetFontSettings(cursor.par->Last() - 1);
				if (rawparfont != rawtmpfont)
					RedoHeightOfParagraph(cursor);
				return;
			}
		}
		
		/* break the cursor row again */ 
		z = NextBreakPoint(row, paperwidth);
		
		if ( z != RowLast(row) || 
		     (row->next && row->next->par == row->par &&
		      RowLast(row) == row->par->Last() - 1)){
			
			/* it can happen that a paragraph loses one row
			 * without a real breakup. This is when a word
			 * is to long to be broken. Well, I don t care this 
			 * hack ;-) */ 
			if (row->next && row->next->par == row->par &&
			    RowLast(row) == row->par->Last() - 1)
				RemoveRow(row->next);
			
			refresh_y = y;
			refresh_row = row;
			status = LyXText::NEED_MORE_REFRESH;
			
			BreakAgainOneRow(row);
			
			SetCursor(cursor.par, cursor.pos);
			/* cursor MUST be in row now */
			
			if (row->next && row->next->par == row->par)
				need_break_row = row->next;
			else
				need_break_row = 0;
		} else  {
			/* set the dimensions of the row */ 
			row->fill = Fill(row, paperwidth);
			int tmpheight = row->height;
			SetHeightOfRow(row);
			if (tmpheight == row->height)
				status = LyXText::NEED_VERY_LITTLE_REFRESH;
			else
				status = LyXText::NEED_MORE_REFRESH;
			refresh_y = y;
			refresh_row = row;
			SetCursor(cursor.par, cursor.pos);
		}
	}
   
	/* restore the current font 
	 * That is what a user expects! */
	current_font = rawtmpfont; 
	real_current_font = realtmpfont;
	
	/* check, wether the last characters font has changed. */
	rawtmpfont = cursor.par->GetFontSettings(cursor.par->Last() - 1);
	if (rawparfont != rawtmpfont) {
		RedoHeightOfParagraph(cursor);
	} else {
		/* now the special right address boxes */
		if (lyxstyle.Style(parameters->textclass,
				   cursor.par->GetLayout())->margintype == MARGIN_RIGHT_ADDRESS_BOX) {
			RedoDrawingOfParagraph(cursor); 
		}
	}
}


void LyXText::GetVisibleRow(LyXScreen &scr, int offset, 
			    Row *row_ptr, long y)
{
	/* returns a printed row */
	
	int pos, pos_end;
	float x, tmpx;
	int y_top, y_bottom;
	float fill_separator, fill_hfill, fill_label_hfill;
	LyXParagraph *par, *firstpar;
	int left_margin;
	LyXFont font;
	int maxdesc;
	if (row_ptr->height <= 0) {
		lyxerr << "LYX_ERROR: row.height: " << row_ptr->height << endl;
		return;
	}
	left_margin = LabelEnd(row_ptr);
	PrepareToPrint(row_ptr, x, fill_separator,
		       fill_hfill, fill_label_hfill);
	
	int main_body = BeginningOfMainBody(row_ptr->par);
	
	/* initialize the pixmap */
	
	scr.fillRectangle(gc_clear,
			  0, offset, paperwidth, row_ptr->height);
	// check for NOT FAST SELECTION
	if (!fast_selection && !mono_video && selection) {
		/* selection code */ 
		if (sel_start_cursor.row == row_ptr &&
		    sel_end_cursor.row == row_ptr) {
			scr.fillRectangle(gc_selection, sel_start_cursor.x,
					  offset,
					  sel_end_cursor.x -
					  sel_start_cursor.x,
					  row_ptr->height);
		}
		else if (sel_start_cursor.row == row_ptr) {
			scr.fillRectangle(gc_selection, sel_start_cursor.x,
					  offset,
					  paperwidth - sel_start_cursor.x,
					  row_ptr->height);
		} else if (sel_end_cursor.row == row_ptr) {
			scr.fillRectangle(gc_selection,0, offset,
					  sel_end_cursor.x, row_ptr->height);
		} else if (y > sel_start_cursor.y && y < sel_end_cursor.y) {
			scr.fillRectangle(gc_selection, 0, offset,
					  paperwidth, row_ptr->height);
			
		}
	} // end of NOT FAST SELECTION code
	
	if (row_ptr->par->appendix){
	  scr.drawVerticalLine(gc_math, 1, offset, offset+row_ptr->height);
	  scr.drawVerticalLine(gc_math, paperwidth-2 , offset, offset+row_ptr->height);
	}

	if (row_ptr->par->pextra_type == PEXTRA_MINIPAGE) {
		/* draw a marker at the left margin! */ 
		LyXFont font = GetFont(row_ptr->par, 0);
		int asc = font.maxAscent();
		int x = (LYX_PAPER_MARGIN - font.width('|')) / 2;
		int y1 = (offset + row_ptr->baseline);
		int y2 = (offset + row_ptr->baseline) - asc;

		scr.drawVerticalLine(gc_minipage, x, y1, y2);
	}       
	if (row_ptr->par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE) {
		LyXFont font(LyXFont::ALL_SANE);
		font.setSize(LyXFont::SIZE_FOOTNOTE);
		font.setColor(LyXFont::RED);
		
		int box_x = LYX_PAPER_MARGIN;
		box_x += font.textWidth(" wide-tab ", 10);
		if (row_ptr->previous && 
		    row_ptr->previous->par->footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
			string fs;
			switch (row_ptr->par->footnotekind) {
			case LyXParagraph::MARGIN:
				fs = " margin";
				break;
			case LyXParagraph::FIG:
				fs = " fig";
				break;
			case LyXParagraph::TAB:
				fs = " tab";
				break;
			case LyXParagraph::WIDE_FIG:
				fs = " wide-fig";
				break;
			case LyXParagraph::WIDE_TAB:
				fs = " wide-tab";
				break;
			case LyXParagraph::ALGORITHM:
				fs = " alg";
				break;
			case LyXParagraph::FOOTNOTE:
				fs = " foot";
				break;
			}
			
			// Determine background color.
			gc_type back = gc_lighted;
			if (mono_video) {
				back = gc_clear;
			}
			scr.fillRectangle(back,LYX_PAPER_MARGIN, offset+1,
					  box_x - LYX_PAPER_MARGIN, 
					  int(font.maxAscent())+
					  int(font.maxDescent()));
			
			scr.drawLine(gc_foot,
				     offset,
				     LYX_PAPER_MARGIN,
				     paperwidth - 2*LYX_PAPER_MARGIN);
			
			scr.drawString(font, fs,
				       offset + int(font.maxAscent())+1,
				       LYX_PAPER_MARGIN);
			scr.drawVerticalLine(gc_foot,
					     LYX_PAPER_MARGIN,
					     offset,
					     offset
					     + int(font.maxAscent())+
					     int(font.maxDescent()));
			
			scr.drawLine(gc_foot,
				     offset
				     + int(font.maxAscent())
				     + int(font.maxDescent()) + 1,
				     LYX_PAPER_MARGIN, box_x - LYX_PAPER_MARGIN); 
		}
		
		/* draw the open floats in a red box */
		scr.drawVerticalLine(gc_foot,
				     box_x,
				     offset,  offset + row_ptr->height);
		
		scr.drawVerticalLine(gc_foot,
				     paperwidth - LYX_PAPER_MARGIN,
				     offset,
				     offset + row_ptr->height);
			
		
	} else  {
		if (row_ptr->previous &&
		    row_ptr->previous->par->footnoteflag == LyXParagraph::OPEN_FOOTNOTE) {
			LyXFont font(LyXFont::ALL_SANE);
			font.setSize(LyXFont::SIZE_FOOTNOTE);
			
			int box_x = LYX_PAPER_MARGIN;
			box_x += font.textWidth(" wide-tab ", 10);
			
			scr.drawLine(gc_foot,
				     offset,
				     box_x,
				     paperwidth - LYX_PAPER_MARGIN - box_x);
		}
	}
	
	LyXLayout* layout = lyxstyle.Style(parameters->textclass,
					   row_ptr->par->GetLayout());
	firstpar = row_ptr->par->FirstPhysicalPar();
	
	y_top = 0;
	y_bottom = row_ptr->height;
	
	/* is it a first row? */ 
	if (row_ptr->pos == 0
	    && row_ptr->par == firstpar) {
		
		 /* start of appendix? */
		if (row_ptr->par->start_of_appendix){
		  scr.drawLine(gc_math, 
			       offset,
			       1, paperwidth-2);
		}

		/* think about the margins */ 
		if (!row_ptr->previous)
			y_top += LYX_PAPER_MARGIN;
		
		if (row_ptr->par->pagebreak_top){ /* draw a top pagebreak  */
			scr.drawOnOffLine(offset + y_top + 2 * DefaultHeight(),
					  0, paperwidth);
			y_top += 3 * DefaultHeight();
		}
		
		if (row_ptr->par->added_space_top.kind() == VSpace::VFILL) {
			/* draw a vfill top  */
			scr.drawLine(gc_fill, 
				     offset + 2 + y_top,
				     0, LYX_PAPER_MARGIN);
			scr.drawLine(gc_fill,
				     offset + y_top + 3 * DefaultHeight(),
				     0, LYX_PAPER_MARGIN);
			scr.drawVerticalOnOffLine(LYX_PAPER_MARGIN / 2, 
						  offset + 2 + y_top,
						  offset + y_top + 3 *
						  DefaultHeight());
			
			y_top += 3 * DefaultHeight();
		}
		
		/* think about user added space */ 
		y_top += int(row_ptr->par->added_space_top.inPixels());
		
		/* think about the parskip */ 
		/* some parskips VERY EASY IMPLEMENTATION */ 
		if (parameters->paragraph_separation == LYX_PARSEP_SKIP) {
			if (layout->latextype == LATEX_PARAGRAPH
			    && firstpar->GetDepth() == 0
			    && firstpar->Previous())
				y_top += parameters->getDefSkip().inPixels();
			else if (firstpar->Previous()
				 && lyxstyle.Style(parameters->textclass,
						   firstpar->Previous()->GetLayout())->latextype == LATEX_PARAGRAPH
				 && firstpar->Previous()->GetDepth() == 0)
				// is it right to use defskip here, too? (AS) 
				y_top += parameters->getDefSkip().inPixels();
		}
		
		if (row_ptr->par->line_top) {      /* draw a top line  */
			y_top +=  GetFont(row_ptr->par, 0).ascent('x');

			scr.drawThickLine(offset + y_top,
					  0, paperwidth);
			y_top +=  GetFont(row_ptr->par, 0).ascent('x');
		}
		
		/* should we print a label? */ 
		if (layout->labeltype >= LABEL_STATIC
		    && (layout->labeltype != LABEL_STATIC
			|| layout->latextype != LATEX_ENVIRONMENT
			|| row_ptr->par->IsFirstInSequence())) {
			font = GetFont(row_ptr->par, -2);
			if (!row_ptr->par->GetLabestring().empty()) {
				tmpx = x;
				string tmpstring = row_ptr->par->GetLabestring();
				
				if (layout->labeltype == LABEL_COUNTER_CHAPTER) {
					if (parameters->secnumdepth >=0){
						/* this is special code for the chapter layout. This is printed in
						 * an extra row and has a pagebreak at the top. */
						maxdesc = int(font.maxDescent() * layout->spacing.getValue() * parameters->spacing.getValue())
							+ int(layout->parsep) * DefaultHeight();
						scr.drawString(font, tmpstring,
							       offset + row_ptr->baseline
							       - row_ptr->ascent_of_text - maxdesc,
							       int(x));
					}
				} else {
					x -= font.stringWidth( layout->labelsep);
					x -= font.stringWidth( tmpstring);
					/* draw it! */
					scr.drawString(font, tmpstring,
						       offset + row_ptr->baseline, int(x));
				}
				x = tmpx;
			}
			/* the labels at the top of an environment. More or less for bibliography */ 
		} else if (layout->labeltype == LABEL_TOP_ENVIRONMENT ||
			   layout->labeltype == LABEL_BIBLIO ||
			   layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
			if (row_ptr->par->IsFirstInSequence()) {
				font = GetFont(row_ptr->par, -2);
				if (!row_ptr->par->GetLabestring().empty()) {
					string tmpstring = row_ptr->par->GetLabestring();
					
					maxdesc = int(font.maxDescent() * layout->spacing.getValue() * parameters->spacing.getValue()
							 + (layout->labelbottomsep * DefaultHeight()));
					
					int top_label_x = int(x);
					if (layout->labeltype == LABEL_CENTERED_TOP_ENVIRONMENT){
						top_label_x = int(x + (paperwidth - RightMargin(row_ptr) - x) / 2); 
						top_label_x -= (font.stringWidth( tmpstring)/2);
					}
					
					scr.drawString(font, tmpstring,
						       offset + row_ptr->baseline
						       - row_ptr->ascent_of_text - maxdesc,  
						       top_label_x);		    
				}
			}
		}
		if (layout->labeltype==LABEL_BIBLIO) { // ale970302
			if (row_ptr->par->bibkey) {
				tmpx = x;
				x -= font.stringWidth(layout->labelsep);
				font = GetFont(row_ptr->par, -1);
				x -= row_ptr->par->bibkey->Width(font);
				row_ptr->par->bibkey->Draw(font, scr,
							   offset + row_ptr->baseline, 
							   x);
				x = tmpx;
			}
		} 
	}
	
	/* is it a last row? */
	par = row_ptr->par->LastPhysicalPar();
	if (row_ptr->par->ParFromPos(RowLast(row_ptr) + 1) == par
	    && (!row_ptr->next || row_ptr->next->par != row_ptr->par)) {     
		
		/* think about the margins */ 
		if (!row_ptr->next)
			y_bottom -= LYX_PAPER_MARGIN;
		
		/* draw a bottom pagebreak */ 
		if (firstpar->pagebreak_bottom) {
			scr.drawOnOffLine(offset + y_bottom - 2 *
					  DefaultHeight(),
					  0, paperwidth);
			y_bottom -= 3 * DefaultHeight();
		}
		
		if (firstpar->added_space_bottom.kind() == VSpace::VFILL) {
			/* draw a vfill bottom  */
			scr.drawLine(gc_fill,
				     offset + y_bottom - 3 * DefaultHeight(),
				     0, LYX_PAPER_MARGIN);
			scr.drawLine(gc_fill, offset + y_bottom - 2,
				     0, LYX_PAPER_MARGIN);
			scr.drawVerticalOnOffLine(LYX_PAPER_MARGIN / 2, 
						  offset + y_bottom - 3 * DefaultHeight(),
						  offset + y_bottom - 2
				);	    
			y_bottom -= 3* DefaultHeight();
		}
		
		/* think about user added space */ 
		y_bottom -= int(firstpar->added_space_bottom.inPixels());
		
		if (firstpar->line_bottom) {
			/* draw a bottom line */
			y_bottom -= GetFont(par, par->Last() - 1).ascent('x');

			scr.drawThickLine(offset + y_bottom,
					  0, paperwidth);	    
			y_bottom -= GetFont(par, par->Last() - 1).ascent('x');
		}
	}
	
	/* draw the text in the pixmap */  
	pos_end = RowLast(row_ptr);
	
	pos = row_ptr->pos;
	/* table stuff -- begin*/
	if (row_ptr->par->table) {
		bool on_off;
		int cell = NumberOfCell(row_ptr->par, row_ptr->pos);
		float x_old = x;
		x += row_ptr->par->table->GetBeginningOfTextInCell(cell);
		
		while (pos <= pos_end)  {
			if (row_ptr->par->IsNewline(pos)) {
				
				x = x_old + row_ptr->par->table->WidthOfColumn(cell);
				/* draw the table lines, still very simple */
				on_off = !row_ptr->par->table->TopLine(cell);
				if ((!on_off ||
				     !row_ptr->par->table->TopAlreadyDrawed(cell)) &&
				    !row_ptr->par->table->IsContRow(cell))
					scr.drawTableLine(offset + row_ptr->baseline -
							  row_ptr->ascent_of_text,
							  int(x_old), int(x - x_old), on_off);
				on_off = !row_ptr->par->table->BottomLine(cell);
				if ((!on_off && !row_ptr->par->table->RowHasContRow(cell)) ||
				    row_ptr->par->table->VeryLastRow(cell))
					scr.drawTableLine(offset + y_bottom - 1,
							  int(x_old), int(x - x_old), on_off);
				on_off = !row_ptr->par->table->LeftLine(cell);
				
				scr.drawVerticalTableLine(int(x_old), 
							  offset + row_ptr->baseline -
							  row_ptr->ascent_of_text,
							  offset + y_bottom - 1,
							  on_off);
				on_off = !row_ptr->par->table->RightLine(cell);
				
				scr.drawVerticalTableLine(int(x) -
							  row_ptr->par->table->AdditionalWidth(cell),
							  offset + row_ptr->baseline -
							  row_ptr->ascent_of_text,
							  offset + y_bottom - 1,
							  on_off);
				x_old = x;
                /* take care about the alignment and other spaces */
				cell++;
				x += row_ptr->par->table->GetBeginningOfTextInCell(cell);
				if (row_ptr->par->table->IsFirstCell(cell))
					cell--; // little hack, sorry
				pos++;
			} else if (row_ptr->par->IsHfill(pos)) {
				x += 1;
				
				scr.drawVerticalLine(gc_fill, int(x),  
						     offset + row_ptr->baseline - DefaultHeight()/2, 
						     offset + row_ptr->baseline);		
				x += 2;
				pos++;
			} else {
				if (row_ptr->par->IsSeparator(pos)) {
					tmpx = x;
					x+=SingleWidth(row_ptr->par, pos);
					/* -------> Only draw protected spaces when not in
					 * free-spacing mode. */
					if (row_ptr->par->GetChar(pos)==LYX_META_PROTECTED_SEPARATOR && !layout->free_spacing) {
						scr.drawVerticalLine(gc_fill, int(tmpx),
								     offset + row_ptr->baseline - 3,
								     offset + row_ptr->baseline - 1);
						scr.drawLine(gc_fill,
							     offset + row_ptr->baseline - 1,
							     int(tmpx),
							     int(x-tmpx-2));
						scr.drawVerticalLine(gc_fill, int(x-2),
								     offset + row_ptr->baseline - 3,
								     offset + row_ptr->baseline - 1);			
						/* what about underbars? */
						font = GetFont(row_ptr->par, pos); 
						if (font.underbar() == LyXFont::ON
						    && font.latex() != LyXFont::ON) {
							scr.drawLine(gc_copy,
								     offset +
								     row_ptr->baseline + 2,
								     int(tmpx),
								     int(x - tmpx));			    
						}
					}
					pos++;
				} else
					Draw(row_ptr, pos, scr, offset, x);
			}
		}
		
		/* do not forget the very last cell. This has no NEWLINE so 
		 * ignored by the code above*/ 
		if (cell == row_ptr->par->table->GetNumberOfCells()-1){
			x = x_old + row_ptr->par->table->WidthOfColumn(cell);
			on_off = !row_ptr->par->table->TopLine(cell);
			if ((!on_off ||
			     !row_ptr->par->table->TopAlreadyDrawed(cell)) &&
			    !row_ptr->par->table->IsContRow(cell))
				
				scr.drawTableLine(offset + row_ptr->baseline -
						  row_ptr->ascent_of_text,
						  int(x_old), int(x - x_old), on_off);	    
			on_off = !row_ptr->par->table->BottomLine(cell);
			if ((!on_off && !row_ptr->par->table->RowHasContRow(cell)) ||
			    row_ptr->par->table->VeryLastRow(cell))
				
				scr.drawTableLine(offset + y_bottom - 1,
						  int(x_old), int(x - x_old), on_off);	    
			on_off = !row_ptr->par->table->LeftLine(cell);
			
			scr.drawVerticalTableLine(int(x_old), 
						  offset + row_ptr->baseline -
						  row_ptr->ascent_of_text,
						  offset + y_bottom - 1,
						  on_off);	    
			on_off = !row_ptr->par->table->RightLine(cell);
			
			scr.drawVerticalTableLine(int(x) -
						  row_ptr->par->table->AdditionalWidth(cell),
						  offset + row_ptr->baseline -
						  row_ptr->ascent_of_text,
						  offset + y_bottom - 1,
						  on_off);	    
		}
	} else {
		/* table stuff -- end*/
		
		while (pos <= pos_end)  {
			
			if (row_ptr->par->IsHfill(pos)) {
				x += 1;
				scr.drawVerticalLine(gc_fill, int(x),  
						     offset + row_ptr->baseline - DefaultHeight()/2, 
						     offset + row_ptr->baseline);		
				if (HfillExpansion(row_ptr,pos)) {
					if (pos >= main_body) {
						scr.drawOnOffLine(offset + row_ptr->baseline -
								  DefaultHeight()/4,
								  int(x),
								  int(fill_hfill));			
						x += fill_hfill;
                    } else {
			    scr.drawOnOffLine(offset + row_ptr->baseline -
					      DefaultHeight()/4,
					      int(x),
					      int(fill_label_hfill));
			    x += fill_label_hfill;
                    }
					scr.drawVerticalLine(gc_fill, int(x),
							     offset + row_ptr->baseline -
							     DefaultHeight()/2, 
							     offset + row_ptr->baseline);
				}
				x += 2;
				pos++;
			} else {
				if (row_ptr->par->IsSeparator(pos)) {
					tmpx = x;
					x+=SingleWidth(row_ptr->par, pos);
					if (pos >= main_body)
						x+= fill_separator;
					/* -------> Only draw protected spaces when not in
					 * free-spacing mode. */
					if (row_ptr->par->GetChar(pos)==LYX_META_PROTECTED_SEPARATOR && !layout->free_spacing) {
						
						scr.drawVerticalLine(gc_fill, int(tmpx),
								     offset + row_ptr->baseline - 3,
								     offset + row_ptr->baseline - 1);
						scr.drawLine(gc_fill,
							     offset + row_ptr->baseline - 1,
							     int(tmpx),
							     int(x-tmpx-2));
						scr.drawVerticalLine(gc_fill, int(x-2),
								     offset + row_ptr->baseline - 3,
								     offset + row_ptr->baseline - 1);			
						/* what about underbars? */
						font = GetFont(row_ptr->par, pos); 
						if (font.underbar() == LyXFont::ON
						    && font.latex() != LyXFont::ON) {
							scr.drawLine(gc_copy,
					     offset + row_ptr->baseline + 2,
								     int(tmpx),
								     int(x - tmpx));
						}
					}
					pos++;
				} else
					Draw(row_ptr, pos, scr, offset, x);
			}
			if (pos == main_body) {
				x += GetFont(row_ptr->par, -2).stringWidth(
					layout->labelsep);
				if (row_ptr->par->IsLineSeparator(pos - 1))
					x-= SingleWidth(row_ptr->par, pos - 1);
				if (x < left_margin)
					x = left_margin;
			}
		}
	}
	// check for FAST SELECTION
	if (fast_selection || mono_video){
		if (selection) {
			
			/* selection code */ 
			if (sel_start_cursor.row == row_ptr && sel_end_cursor.row == row_ptr) {
				scr.fillRectangle(gc_select,sel_start_cursor.x, offset,
						  sel_end_cursor.x - sel_start_cursor.x,
						  row_ptr->height); 
			} else if (sel_start_cursor.row == row_ptr) {
				scr.fillRectangle(gc_select, sel_start_cursor.x, offset,
						  paperwidth - sel_start_cursor.x,
						  row_ptr->height);
			} else if (sel_end_cursor.row == row_ptr) {
				scr.fillRectangle(gc_select, 0, offset,
						  sel_end_cursor.x,
						  row_ptr->height);
			} else if (y > sel_start_cursor.y && y < sel_end_cursor.y) {
				scr.fillRectangle(gc_select, 0, offset,
						  paperwidth, row_ptr->height);
				
			}
		}
	}
// end of FAST SELECTION code
	/* thats it */ 
}


int LyXText::DefaultHeight()
{
	LyXFont font(LyXFont::ALL_SANE);
	return int(font.maxAscent() + font.maxDescent() * 1.5);
}

   
/* returns the column near the specified x-coordinate of the row 
* x is set to the real beginning of this column  */ 
int  LyXText::GetColumnNearX(Row *row, int& x)
{
	int c; 
	float tmpx = 0.0;
	float fill_separator, fill_hfill, fill_label_hfill;
	int left_margin;
   
	left_margin = LabelEnd(row);
	PrepareToPrint(row, tmpx, fill_separator,
		       fill_hfill, fill_label_hfill);
	int main_body = BeginningOfMainBody(row->par);
   
	c = row->pos;

	int last = RowLast(row);
	if (row->par->IsNewline(last))
		last--;
   
	LyXLayout *layout = lyxstyle.Style(parameters->textclass,
					   row->par->GetLayout());
	/* table stuff -- begin*/
	if (row->par->table) {
		if (!row->next || row->next->par != row->par)
			last = RowLast(row); /* the last row doesn't need a newline at the end*/
		int cell = NumberOfCell(row->par, row->pos);
		float x_old = tmpx;
		bool ready = false;
		tmpx += row->par->table->GetBeginningOfTextInCell(cell);
		while (c <= last
		       && tmpx + (SingleWidth(row->par, c)/2) <= x
		       && !ready){
			if (row->par->IsNewline(c)) {
				if (x_old + row->par->table->WidthOfColumn(cell) <= x){
					tmpx = x_old + row->par->table->WidthOfColumn(cell);
					x_old = tmpx;
					cell++;
					tmpx += row->par->table->GetBeginningOfTextInCell(cell);
					c++;
				} else
					ready = true;
			} else {
				tmpx += SingleWidth(row->par, c);
				c++;
			}
		}
	} else
		/* table stuff -- end*/

		while (c <= last
		       && tmpx + (SingleWidth(row->par, c)/2)  <= x) {
			
			if (c && c == main_body
			    && !row->par->IsLineSeparator(c - 1)) {
				tmpx += GetFont(row->par, -2)
					.stringWidth(layout->labelsep);
				if (tmpx < left_margin)
					tmpx = left_margin;
			}
	     
			tmpx += SingleWidth(row->par, c);
			if (HfillExpansion(row, c)) {
				if (c >= main_body)
					tmpx += fill_hfill;
				else
					tmpx += fill_label_hfill;
			}
			else if (c >= main_body
				 && row->par->IsSeparator(c)) {
				tmpx+= fill_separator;  
			}
			c++;
			if (c == main_body
			    && row->par->IsLineSeparator(c - 1)) {
				tmpx += GetFont(row->par, -2)
					.stringWidth(layout->labelsep);
				tmpx-= SingleWidth(row->par, c - 1);
				if (tmpx < left_margin)
					tmpx = left_margin;
			}
		}
	/* make sure that a last space in a row doesnt count */
	if (c > 0 && c >= last
	    && row->par->IsLineSeparator(c - 1)
	    && !(!row->next || row->next->par != row->par)) {
		tmpx -= SingleWidth(row->par, c - 1);
		tmpx -= fill_separator;
	}
	c-=row->pos;
	
	x = int(tmpx);
	return c;
}

   
/* turn the selection into a new environment. If there is no selection,
* create an empty environment */ 
void LyXText::InsertFootnoteEnvironment(LyXParagraph::footnote_kind kind)
{
   /* no footnoteenvironment in a footnoteenvironment */ 
   if (cursor.par->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
      WriteAlert(_("Impossible operation"), 
		 _("You can't insert a float in a float!"), 
		 _("Sorry."));
     return;
   }
   /* no marginpars in minipages */
   if (kind == LyXParagraph::MARGIN 
      && cursor.par->pextra_type == PEXTRA_MINIPAGE) {
      WriteAlert(_("Impossible operation"), 
		 _("You can't insert a marginpar in a minipage!"), 
		 _("Sorry."));
      return;
   }
   
   /* this doesnt make sense, if there is no selection */ 
   bool dummy_selection = false;
   if (!selection) {
      sel_start_cursor = cursor;       /* dummy selection  */
      sel_end_cursor = cursor;
      dummy_selection = true;
   }
   
   LyXParagraph *tmppar;

   if (sel_start_cursor.par->table || sel_end_cursor.par->table){
      WriteAlert(_("Impossible operation"), _("Cannot cut table."), _("Sorry."));
      return;
   }
     
   /* a test to make sure there is not already a footnote
    * in the selection. */
   
   tmppar = sel_start_cursor.par->ParFromPos(sel_start_cursor.pos);
   
   while (tmppar != sel_end_cursor.par->ParFromPos(sel_end_cursor.pos) && 
	  tmppar->footnoteflag == LyXParagraph::NO_FOOTNOTE)
     tmppar = tmppar->next;
   
   if (tmppar != sel_end_cursor.par->ParFromPos(sel_end_cursor.pos)
       || tmppar->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
      WriteAlert(_("Impossible operation"), 
		 _("Float would include float!"), 
		 _("Sorry."));
      return;
   }
   
   /* ok we have a selection. This is always between sel_start_cursor
    * and sel_end cursor */

   SetUndo(Undo::FINISH, 
	   sel_start_cursor.par->ParFromPos(sel_start_cursor.pos)->previous, 
	   sel_end_cursor.par->ParFromPos(sel_end_cursor.pos)->next); 
   
   if (sel_end_cursor.pos > 0 
       && sel_end_cursor.par->IsLineSeparator(sel_end_cursor.pos - 1))
     sel_end_cursor.pos--;	       /* please break before a space at
					* the end */
   if (sel_start_cursor.par == sel_end_cursor.par
       && sel_start_cursor.pos > sel_end_cursor.pos)
     sel_start_cursor.pos--;

   sel_end_cursor.par->BreakParagraphConservative(sel_end_cursor.pos);
   
   sel_end_cursor.par = sel_end_cursor.par->Next();
   sel_end_cursor.pos = 0;
   
   // don't forget to insert a dummy layout paragraph if necessary
   if (sel_start_cursor.par->GetLayout() != sel_end_cursor.par->layout){
     sel_end_cursor.par->BreakParagraphConservative(0);
     sel_end_cursor.par->layout = LYX_DUMMY_LAYOUT;
     sel_end_cursor.par = sel_end_cursor.par->next;
   }
   else
     sel_end_cursor.par->layout = LYX_DUMMY_LAYOUT;

   cursor = sel_end_cursor;

   /* please break behind a space, if there is one. The space should
    * be erased too */ 
   if (sel_start_cursor.pos > 0 
       && sel_start_cursor.par->IsLineSeparator(sel_start_cursor.pos - 1))
     sel_start_cursor.pos--;
   if (sel_start_cursor.par->IsLineSeparator(sel_start_cursor.pos)) {
      sel_start_cursor.par->Erase(sel_start_cursor.pos);
   }
   
   sel_start_cursor.par->BreakParagraphConservative(sel_start_cursor.pos);
   tmppar = sel_start_cursor.par->Next();
   
   if (dummy_selection) {
	   tmppar->Clear();
	   if (kind == LyXParagraph::TAB
	       || kind == LyXParagraph::FIG 
               || kind == LyXParagraph::WIDE_TAB
	       || kind == LyXParagraph::WIDE_FIG 
               || kind == LyXParagraph::ALGORITHM) {
		   int lay = lyxstyle.NumberOfLayout(parameters->textclass,
						     "Caption");
		   if (lay == -1) // layout not found
			   // use default layout "Standard" (0)
			   lay = 0;
		   tmppar->SetLayout(lay);
	   }
   }
   else {
     if (sel_start_cursor.pos > 0) {
       /* the footnote-environment should begin with a standard layout.
	* Imagine you insert a footnote within an enumeration, you 
	* certainly do not want an enumerated footnote! */ 
       tmppar->Clear();
     }
     else {
       /* this is a exception the user would sometimes expect, I hope */
       sel_start_cursor.par->Clear();
     }
   }
   
   while (tmppar != sel_end_cursor.par) {
      tmppar->footnoteflag = LyXParagraph::OPEN_FOOTNOTE;
      tmppar->footnotekind = kind;
      tmppar = tmppar->Next();
   } 

   RedoParagraphs(sel_start_cursor, sel_end_cursor.par->Next());
   
   SetCursor(sel_start_cursor.par->Next(), 0);

   ClearSelection();
}
   

/* returns pointer to a specified row */
Row* LyXText::GetRow(LyXParagraph *par, int pos, long &y)
{
   Row* tmprow;

   if (currentrow){
     if (par == currentrow->par || par == currentrow->par->Previous()){
	     // do not dereference par, it may have been deleted
	     // already! (Matthias) 
	     while (currentrow->previous && currentrow->previous->par != par){
		     currentrow = currentrow->previous;
		     currentrow_y -= currentrow->height;
	     }
	     while (currentrow->previous && currentrow->previous->par == par){
		     currentrow = currentrow->previous;
		     currentrow_y -= currentrow->height;
	     }
     }
     tmprow = currentrow;
     y = currentrow_y;
     /* find the first row of the specified paragraph */ 
     while (tmprow->next && (tmprow->par != par)) {
       y += tmprow->height;
       tmprow = tmprow->next;
     }

     if (tmprow->par == par){
       /* now find the wanted row */ 
       while (tmprow->pos < pos && tmprow->next && tmprow->next->par == par && 
	      tmprow->next->pos <= pos) {
	 y += tmprow->height;
       tmprow = tmprow->next;
       }
       currentrow = tmprow;
       currentrow_y = y;
       return tmprow;
     }
   }
   tmprow = firstrow;
   y = 0;
   /* find the first row of the specified paragraph */ 
   while (tmprow->next && (tmprow->par != par)) {
      y += tmprow->height;
      tmprow = tmprow->next;
   }
 
   /* now find the wanted row */ 
   while (tmprow->pos < pos && tmprow->next && tmprow->next->par == par && 
	  tmprow->next->pos <= pos) {
	     y += tmprow->height;
	     tmprow = tmprow->next;
   }
   
   currentrow = tmprow;
   currentrow_y = y;

   return tmprow;
}