lyx_mirror/src/insets/insettabular.C

/* This file is part of
 * ======================================================
 *
 *           LyX, The Document Processor
 *
 *           Copyright 2001 The LyX Team.
 *
 * ======================================================
 */

#include <config.h>

#ifdef __GNUG__
#pragma implementation
#endif

#include "insettabular.h"

#include "lyx_cb.h"
#include "buffer.h"
#include "commandtags.h"
#include "lyxfunc.h"
#include "debug.h"
#include "LaTeXFeatures.h"
#include "frontends/Painter.h"
#include "frontends/font_metrics.h"
#include "lyxtext.h"
#include "frontends/LyXView.h"
#include "insets/insettext.h"
#include "debug.h"
#include "gettext.h"
#include "language.h"
#include "BufferView.h"
#include "undo_funcs.h"
#include "lyxlength.h"
#include "ParagraphParameters.h"

#include "frontends/Dialogs.h"
#include "frontends/Alert.h"

#include "support/LAssert.h"
#include "support/lstrings.h"

#include <fstream>
#include <algorithm>
#include <cstdlib>
#include <map>
//#include <signal.h>


using std::vector;
using std::ostream;
using std::ifstream;
using std::max;
using std::endl;
using std::swap;
using std::max;

namespace {

int const ADD_TO_HEIGHT = 2;
int const ADD_TO_TABULAR_WIDTH = 2;

///
LyXTabular * paste_tabular = 0;


struct TabularFeature {
	LyXTabular::Feature action;
	string feature;
};


TabularFeature tabularFeature[] =
{
	{ LyXTabular::APPEND_ROW, "append-row" },
	{ LyXTabular::APPEND_COLUMN, "append-column" },
	{ LyXTabular::DELETE_ROW, "delete-row" },
	{ LyXTabular::DELETE_COLUMN, "delete-column" },
	{ LyXTabular::TOGGLE_LINE_TOP, "toggle-line-top" },
	{ LyXTabular::TOGGLE_LINE_BOTTOM, "toggle-line-bottom" },
	{ LyXTabular::TOGGLE_LINE_LEFT, "toggle-line-left" },
	{ LyXTabular::TOGGLE_LINE_RIGHT, "toggle-line-right" },
	{ LyXTabular::ALIGN_LEFT, "align-left" },
	{ LyXTabular::ALIGN_RIGHT, "align-right" },
	{ LyXTabular::ALIGN_CENTER, "align-center" },
	{ LyXTabular::VALIGN_TOP, "valign-top" },
	{ LyXTabular::VALIGN_BOTTOM, "valign-bottom" },
	{ LyXTabular::VALIGN_CENTER, "valign-center" },
	{ LyXTabular::M_TOGGLE_LINE_TOP, "m-toggle-line-top" },
	{ LyXTabular::M_TOGGLE_LINE_BOTTOM, "m-toggle-line-bottom" },
	{ LyXTabular::M_TOGGLE_LINE_LEFT, "m-toggle-line-left" },
	{ LyXTabular::M_TOGGLE_LINE_RIGHT, "m-toggle-line-right" },
	{ LyXTabular::M_ALIGN_LEFT, "m-align-left" },
	{ LyXTabular::M_ALIGN_RIGHT, "m-align-right" },
	{ LyXTabular::M_ALIGN_CENTER, "m-align-center" },
	{ LyXTabular::M_VALIGN_TOP, "m-valign-top" },
	{ LyXTabular::M_VALIGN_BOTTOM, "m-valign-bottom" },
	{ LyXTabular::M_VALIGN_CENTER, "m-valign-center" },
	{ LyXTabular::MULTICOLUMN, "multicolumn" },
	{ LyXTabular::SET_ALL_LINES, "set-all-lines" },
	{ LyXTabular::UNSET_ALL_LINES, "unset-all-lines" },
	{ LyXTabular::SET_LONGTABULAR, "set-longtabular" },
	{ LyXTabular::UNSET_LONGTABULAR, "unset-longtabular" },
	{ LyXTabular::SET_PWIDTH, "set-pwidth" },
	{ LyXTabular::SET_MPWIDTH, "set-mpwidth" },
	{ LyXTabular::SET_ROTATE_TABULAR, "set-rotate-tabular" },
	{ LyXTabular::UNSET_ROTATE_TABULAR, "unset-rotate-tabular" },
	{ LyXTabular::SET_ROTATE_CELL, "set-rotate-cell" },
	{ LyXTabular::UNSET_ROTATE_CELL, "unset-rotate-cell" },
	{ LyXTabular::SET_USEBOX, "set-usebox" },
	{ LyXTabular::SET_LTHEAD, "set-lthead" },
	{ LyXTabular::SET_LTFIRSTHEAD, "set-ltfirsthead" },
	{ LyXTabular::SET_LTFOOT, "set-ltfoot" },
	{ LyXTabular::SET_LTLASTFOOT, "set-ltlastfoot" },
	{ LyXTabular::SET_LTNEWPAGE, "set-ltnewpage" },
	{ LyXTabular::SET_SPECIAL_COLUMN, "set-special-column" },
	{ LyXTabular::SET_SPECIAL_MULTI, "set-special-multi" },
	{ LyXTabular::LAST_ACTION, "" }
};

} // namespace anon


bool InsetTabular::hasPasteBuffer() const
{
	return (paste_tabular != 0);
}


InsetTabular::InsetTabular(Buffer const & buf, int rows, int columns)
	: buffer(&buf)
{
	if (rows <= 0)
		rows = 1;
	if (columns <= 0)
		columns = 1;
	tabular.reset(new LyXTabular(buf.params, this, rows, columns));
	// for now make it always display as display() inset
	// just for test!!!
	the_locking_inset = 0;
	old_locking_inset = 0;
	locked = false;
	oldcell = -1;
	actrow = actcell = 0;
	clearSelection();
	need_update = INIT;
	in_update = false;
	in_reset_pos = 0;
	inset_x = 0;
	inset_y = 0;
}


InsetTabular::InsetTabular(InsetTabular const & tab, Buffer const & buf,
						   bool same_id)
	: UpdatableInset(tab, same_id), buffer(&buf)
{
	tabular.reset(new LyXTabular(buf.params,
				     this, *(tab.tabular), same_id));
	the_locking_inset = 0;
	old_locking_inset = 0;
	locked = false;
	oldcell = -1;
	actrow = actcell = 0;
	clearSelection();
	need_update = INIT;
	in_update = false;
	in_reset_pos = 0;
	inset_x = 0;
	inset_y = 0;
}


InsetTabular::~InsetTabular()
{
	hideDialog();
}


Inset * InsetTabular::clone(Buffer const & buf, bool same_id) const
{
	return new InsetTabular(*this, buf, same_id);
}


void InsetTabular::write(Buffer const * buf, ostream & os) const
{
	os << " Tabular" << endl;
	tabular->Write(buf, os);
}


void InsetTabular::read(Buffer const * buf, LyXLex & lex)
{
	bool const old_format = (lex.getString() == "\\LyXTable");

	tabular.reset(new LyXTabular(buf, this, lex));

	need_update = INIT;

	if (old_format)
		return;

	lex.nextToken();
	string token = lex.getString();
	while (lex.isOK() && (token != "\\end_inset")) {
		lex.nextToken();
		token = lex.getString();
	}
	if (token != "\\end_inset") {
		lex.printError("Missing \\end_inset at this point. "
			       "Read: `$$Token'");
	}
}


int InsetTabular::ascent(BufferView *, LyXFont const &) const
{
	return tabular->GetAscentOfRow(0);
}


int InsetTabular::descent(BufferView *, LyXFont const &) const
{
	return tabular->GetHeightOfTabular() - tabular->GetAscentOfRow(0) + 1;
}


int InsetTabular::width(BufferView *, LyXFont const &) const
{
	return tabular->GetWidthOfTabular() + (2 * ADD_TO_TABULAR_WIDTH);
}


void InsetTabular::draw(BufferView * bv, LyXFont const & font, int baseline,
			float & x, bool cleared) const
{
	if (nodraw()) {
		if (cleared)
			need_update = FULL;
		return;
	}
#if 0
	if (need_update == INIT) {
		if (calculate_dimensions_of_cells(bv, font, true))
			bv->text->status = LyXText::CHANGED_IN_DRAW;
		need_update = FULL;
	}
#endif

	Painter & pain = bv->painter();
	int i;
	int j;
	int nx;

#if 0
	UpdatableInset::draw(bv, font, baseline, x, cleared);
#else
	if (!owner())
		x += static_cast<float>(scroll());
#endif
	if (!cleared && ((need_update == INIT) || (need_update == FULL) ||
			 (top_x != int(x)) || (top_baseline != baseline)))
	{
		int h = ascent(bv, font) + descent(bv, font);
		int const tx = display() || !owner() ? 0 : top_x;
		int w =  tx ? width(bv, font) : pain.paperWidth();
		int ty = baseline - ascent(bv, font);

		if (ty < 0)
			ty = 0;
		if ((ty + h) > pain.paperHeight())
			h = pain.paperHeight();
		if ((top_x + w) > pain.paperWidth())
			w = pain.paperWidth();
		pain.fillRectangle(tx, ty, w, h, backgroundColor());
		need_update = FULL;
		cleared = true;
	}
	top_x = int(x);
	topx_set = true;
	top_baseline = baseline;
	x += ADD_TO_TABULAR_WIDTH;
	if (cleared) {
		int cell = 0;
		float cx;
		first_visible_cell = -1;
		for (i = 0; i < tabular->rows(); ++i) {
			nx = int(x);
			cell = tabular->GetCellNumber(i, 0);
			if (!((baseline + tabular->GetDescentOfRow(i)) > 0) &&
				(baseline - tabular->GetAscentOfRow(i))<pain.paperHeight())
			{
				baseline += tabular->GetDescentOfRow(i) +
					tabular->GetAscentOfRow(i + 1) +
					tabular->GetAdditionalHeight(i + 1);
				continue;
			}
			for (j = 0; j < tabular->columns(); ++j) {
				if (nx > bv->workWidth())
					break;
				if (tabular->IsPartOfMultiColumn(i, j))
					continue;
				cx = nx + tabular->GetBeginningOfTextInCell(cell);
				if (first_visible_cell < 0)
					first_visible_cell = cell;
				if (hasSelection()) {
					drawCellSelection(pain, nx, baseline, i, j, cell);
				}

				tabular->GetCellInset(cell)->draw(bv, font, baseline, cx, cleared);
				drawCellLines(pain, nx, baseline, i, cell);
				nx += tabular->GetWidthOfColumn(cell);
				++cell;
			}
			baseline += tabular->GetDescentOfRow(i) +
				tabular->GetAscentOfRow(i + 1) +
				tabular->GetAdditionalHeight(i + 1);
		}
	} else if (need_update == CELL) {
		int cell = 0;
		nx = int(x);
		if (the_locking_inset &&
			tabular->GetCellInset(actcell) != the_locking_inset)
		{
			Inset * inset = tabular->GetCellInset(cell);
			for (i = 0;
			     inset != the_locking_inset && i < tabular->rows();
			     ++i)
			{
				for (j = 0;
				     inset != the_locking_inset && j < tabular->columns();
				     ++j)
				{
					if (tabular->IsPartOfMultiColumn(i, j))
						continue;
					nx += tabular->GetWidthOfColumn(cell);
					++cell;
					inset = tabular->GetCellInset(cell);
				}
				if (tabular->row_of_cell(cell) > i) {
					nx = int(x);
					baseline += tabular->GetDescentOfRow(i) +
						tabular->GetAscentOfRow(i + 1) +
						tabular->GetAdditionalHeight(i + 1);
				}
			}
		} else {
			// compute baseline for actual row
			for (i = 0; i < actrow; ++i) {
				baseline += tabular->GetDescentOfRow(i) +
					tabular->GetAscentOfRow(i + 1) +
					tabular->GetAdditionalHeight(i + 1);
			}
			// now compute the right x position
			cell = tabular->GetCellNumber(actrow, 0);
			for (j = 0; (cell < actcell) && (j < tabular->columns()); ++j) {
					if (tabular->IsPartOfMultiColumn(actrow, j))
						continue;
					nx += tabular->GetWidthOfColumn(cell);
					++cell;
			}
		}
		i = tabular->row_of_cell(cell);
		if (the_locking_inset != tabular->GetCellInset(cell)) {
			lyxerr[Debug::INSETTEXT] << "ERROR this shouldn't happen\n";
			return;
		}
		float dx = nx + tabular->GetBeginningOfTextInCell(cell);
		float cx = dx;
		tabular->GetCellInset(cell)->draw(bv, font, baseline, dx, false);
		//
		// Here we use rectangular backgroundColor patches to clean up
		// within a cell around the cell's red inset box. As follows:
		//
		//  +--------------------+
		//  |         C          |   The rectangles are A, B and C
		//  | A |------------| B |   below, origin top left (tx, ty),
		//  |   |  inset box |   |   dimensions w(idth), h(eight).
		//  +---+------------+---+   x grows rightward, y downward
		//  |         D          |
		//  +--------------------+
		//
#if 0
		// clear only if we didn't have a change
		if (bv->text->status() != LyXText::CHANGED_IN_DRAW) {
#endif
			// clear before the inset
			int tx, ty, w, h;
			tx = nx + 1;
			ty = baseline - tabular->GetAscentOfRow(i) + 1;
			w = int(cx - nx - 1);
			h = tabular->GetAscentOfRow(i) +
				tabular->GetDescentOfRow(i) - 1;
			pain.fillRectangle(tx, ty, w, h, backgroundColor());
			// clear behind the inset
			tx = int(cx + the_locking_inset->width(bv,font) + 1);
			ty = baseline - tabular->GetAscentOfRow(i) + 1;
			w = tabular->GetWidthOfColumn(cell) -
				tabular->GetBeginningOfTextInCell(cell) -
				the_locking_inset->width(bv,font) -
				tabular->GetAdditionalWidth(cell) - 1;
			h = tabular->GetAscentOfRow(i) + tabular->GetDescentOfRow(i) - 1;
			pain.fillRectangle(tx, ty, w, h, backgroundColor());
			// clear below the inset
			tx = nx + 1;
			ty = baseline + the_locking_inset->descent(bv, font) + 1;
			w = tabular->GetWidthOfColumn(cell) -
				tabular->GetAdditionalWidth(cell) - 1;
			h = tabular->GetDescentOfRow(i) -
				the_locking_inset->descent(bv, font) - 1;
			pain.fillRectangle(tx, ty, w, h, backgroundColor());
			// clear above the inset
			tx = nx + 1;
			ty = baseline - tabular->GetAscentOfRow(i) + 1;
			w = tabular->GetWidthOfColumn(cell) -
				tabular->GetAdditionalWidth(cell) - 1;
			h = tabular->GetAscentOfRow(i) - the_locking_inset->ascent(bv, font);
			pain.fillRectangle(tx, ty, w, h, backgroundColor());
#if 0
		}
#endif
	}
	x -= ADD_TO_TABULAR_WIDTH;
	x += width(bv, font);
	if (bv->text->status() == LyXText::CHANGED_IN_DRAW) {
		int i = 0;
		for(Inset * inset = owner(); inset; ++i)
			inset = inset->owner();
		if (calculate_dimensions_of_cells(bv, font, false))
			need_update = INIT;
	} else {
		need_update = NONE;
	}
}


void InsetTabular::drawCellLines(Painter & pain, int x, int baseline,
				 int row, int cell) const
{
	int x2 = x + tabular->GetWidthOfColumn(cell);
	bool on_off;

	if (!tabular->TopAlreadyDrawed(cell)) {
		on_off = !tabular->TopLine(cell);
		pain.line(x, baseline - tabular->GetAscentOfRow(row),
			  x2, baseline -  tabular->GetAscentOfRow(row),
			  on_off ? LColor::tabularonoffline : LColor::tabularline,
			  on_off ? Painter::line_onoffdash : Painter::line_solid);
	}
	on_off = !tabular->BottomLine(cell);
	pain.line(x, baseline + tabular->GetDescentOfRow(row),
		  x2, baseline + tabular->GetDescentOfRow(row),
		  on_off ? LColor::tabularonoffline : LColor::tabularline,
		  on_off ? Painter::line_onoffdash : Painter::line_solid);
	if (!tabular->LeftAlreadyDrawed(cell)) {
		on_off = !tabular->LeftLine(cell);
		pain.line(x, baseline -  tabular->GetAscentOfRow(row),
			  x, baseline +  tabular->GetDescentOfRow(row),
			  on_off ? LColor::tabularonoffline : LColor::tabularline,
			  on_off ? Painter::line_onoffdash : Painter::line_solid);
	}
	on_off = !tabular->RightLine(cell);
	pain.line(x2 - tabular->GetAdditionalWidth(cell),
		  baseline -  tabular->GetAscentOfRow(row),
		  x2 - tabular->GetAdditionalWidth(cell),
		  baseline +  tabular->GetDescentOfRow(row),
		  on_off ? LColor::tabularonoffline : LColor::tabularline,
		  on_off ? Painter::line_onoffdash : Painter::line_solid);
}


void InsetTabular::drawCellSelection(Painter & pain, int x, int baseline,
				     int row, int column, int cell) const
{
	lyx::Assert(hasSelection());
	int cs = tabular->column_of_cell(sel_cell_start);
	int ce = tabular->column_of_cell(sel_cell_end);
	if (cs > ce) {
		ce = cs;
		cs = tabular->column_of_cell(sel_cell_end);
	} else {
		ce = tabular->right_column_of_cell(sel_cell_end);
	}

	int rs = tabular->row_of_cell(sel_cell_start);
	int re = tabular->row_of_cell(sel_cell_end);
	if (rs > re)
		swap(rs, re);

	if ((column >= cs) && (column <= ce) && (row >= rs) && (row <= re)) {
		int w = tabular->GetWidthOfColumn(cell);
		int h = tabular->GetAscentOfRow(row) + tabular->GetDescentOfRow(row)-1;
		pain.fillRectangle(x, baseline - tabular->GetAscentOfRow(row) + 1,
				   w, h, LColor::selection);
	}
}


void InsetTabular::update(BufferView * bv, LyXFont const & font, bool reinit)
{
	if (in_update) {
		if (reinit) {
			resetPos(bv);
			if (owner())
				owner()->update(bv, font, true);
		}
		return;
	}
	in_update = true;
	if (reinit) {
		need_update = INIT;
		if (calculate_dimensions_of_cells(bv, font, true))
			resetPos(bv);
		if (owner())
			owner()->update(bv, font, true);
		in_update = false;
		return;
	}
	if (the_locking_inset)
		the_locking_inset->update(bv, font, reinit);
	if (need_update < FULL &&
		bv->text->status() == LyXText::NEED_MORE_REFRESH)
	{
		need_update = FULL;
	}

	switch (need_update) {
	case INIT:
	case FULL:
	case CELL:
		if (calculate_dimensions_of_cells(bv, font, false)) {
			need_update = INIT;
			resetPos(bv);
		}
		break;
	case SELECTION:
		need_update = FULL;
		break;
	default:
		break;
	}
	in_update = false;
}


string const InsetTabular::editMessage() const
{
	return _("Opened Tabular Inset");
}


void InsetTabular::edit(BufferView * bv, int x, int y, mouse_button::state button)
{
	UpdatableInset::edit(bv, x, y, button);

	if (!bv->lockInset(this)) {
		lyxerr[Debug::INSETTEXT] << "InsetTabular::Cannot lock inset" << endl;
		return;
	}
	locked = true;
	the_locking_inset = 0;
	inset_x = 0;
	inset_y = 0;
	setPos(bv, x, y);
	clearSelection();
	finishUndo();
	if (insetHit(bv, x, y) && (button != mouse_button::button3)) {
		activateCellInsetAbs(bv, x, y, button);
	}
}


void InsetTabular::edit(BufferView * bv, bool front)
{
	UpdatableInset::edit(bv, front);

	if (!bv->lockInset(this)) {
		lyxerr[Debug::INSETTEXT] << "InsetTabular::Cannot lock inset" << endl;
		return;
	}
	finishUndo();
	locked = true;
	the_locking_inset = 0;
	inset_x = 0;
	inset_y = 0;
	if (front) {
		if (isRightToLeft(bv))
			actcell = tabular->GetLastCellInRow(0);
		else
			actcell = 0;
	} else {
		if (isRightToLeft(bv))
			actcell = tabular->GetFirstCellInRow(tabular->rows()-1);
		else
			actcell = tabular->GetNumberOfCells() - 1;
	}
	clearSelection();
	resetPos(bv);
	bv->fitCursor();
}


void InsetTabular::insetUnlock(BufferView * bv)
{
	if (the_locking_inset) {
		the_locking_inset->insetUnlock(bv);
		updateLocal(bv, CELL, false);
		the_locking_inset = 0;
	}
	hideInsetCursor(bv);
	actcell = 0;
	oldcell = -1;
	locked = false;
	if (scroll(false) || hasSelection()) {
		clearSelection();
		if (scroll(false)) {
			scroll(bv, 0.0F);
		}
		updateLocal(bv, FULL, false);
	}
}


void InsetTabular::updateLocal(BufferView * bv, UpdateCodes what,
			       bool mark_dirty) const
{
	if (what == INIT) {
		LyXFont font;
		calculate_dimensions_of_cells(bv, font, true);
	}
	if (!locked && what == CELL)
		what = FULL;
	if (need_update < what) // only set this if it has greater update
		need_update = what;
	// Dirty Cast! (Lgb)
	if (need_update != NONE) {
		bv->updateInset(const_cast<InsetTabular *>(this), mark_dirty);
		if (locked)
			resetPos(bv);
	}
}


bool InsetTabular::lockInsetInInset(BufferView * bv, UpdatableInset * inset)
{
	lyxerr[Debug::INSETTEXT] << "InsetTabular::LockInsetInInset("
			      << inset << "): ";
	if (!inset)
		return false;
	oldcell = -1;
	if (inset == tabular->GetCellInset(actcell)) {
		lyxerr[Debug::INSETTEXT] << "OK" << endl;
		the_locking_inset = tabular->GetCellInset(actcell);
		resetPos(bv);
		return true;
	} else if (!the_locking_inset) {
		int const n = tabular->GetNumberOfCells();
		int const id = inset->id();
		for (int i = 0; i < n; ++i) {
			InsetText * in = tabular->GetCellInset(i);
			if (inset == in) {
				actcell = i;
				the_locking_inset = in;
				locked = true;
				resetPos(bv);
				return true;
			}
			if (in->getInsetFromID(id)) {
				actcell = i;
				in->edit(bv);
				return the_locking_inset->lockInsetInInset(bv, inset);
			}
		}
	} else if (the_locking_inset && (the_locking_inset == inset)) {
		lyxerr[Debug::INSETTEXT] << "OK" << endl;
		resetPos(bv);
	} else if (the_locking_inset) {
		lyxerr[Debug::INSETTEXT] << "MAYBE" << endl;
		return the_locking_inset->lockInsetInInset(bv, inset);
	}
	lyxerr[Debug::INSETTEXT] << "NOT OK" << endl;
	return false;
}


bool InsetTabular::unlockInsetInInset(BufferView * bv, UpdatableInset * inset,
				      bool lr)
{
	if (!the_locking_inset)
		return false;
	if (the_locking_inset == inset) {
		the_locking_inset->insetUnlock(bv);
#ifdef WITH_WARNINGS
#warning fix scrolling when cellinset has requested a scroll (Jug)!!!
#endif
#if 0
		if (scroll(false))
			scroll(bv, 0.0F);
#endif
		updateLocal(bv, CELL, false);
		// this has to be here otherwise we don't redraw the cell!
		the_locking_inset = 0;
//		showInsetCursor(bv, false);
		return true;
	}
	if (the_locking_inset->unlockInsetInInset(bv, inset, lr)) {
		if (inset->lyxCode() == TABULAR_CODE &&
		    !the_locking_inset->getFirstLockingInsetOfType(TABULAR_CODE)) {
			bv->owner()->getDialogs()->updateTabular(this);
			oldcell = actcell;
		}
		return true;
	}
	return false;
}


bool InsetTabular::updateInsetInInset(BufferView * bv, Inset * inset)
{
	Inset * tl_inset = inset;
	// look if this inset is really inside myself!
	while(tl_inset->owner() && tl_inset->owner() != this)
		tl_inset = tl_inset->owner();
	// if we enter here it's not ower inset
	if (!tl_inset->owner())
		return false;
	// we only have to do this if this is a subinset of our cells
	if (tl_inset != inset) {
		if (!static_cast<InsetText *>(tl_inset)->updateInsetInInset(bv, inset))
			return false;
	}
	updateLocal(bv, CELL, false);
	return true;
}


int InsetTabular::insetInInsetY() const
{
	if (!the_locking_inset)
		return 0;
	return inset_y + the_locking_inset->insetInInsetY();
}


UpdatableInset * InsetTabular::getLockingInset() const
{
	return the_locking_inset ? the_locking_inset->getLockingInset() :
		const_cast<InsetTabular *>(this);
}


UpdatableInset * InsetTabular::getFirstLockingInsetOfType(Inset::Code c)
{
	if (c == lyxCode())
		return this;
	if (the_locking_inset)
		return the_locking_inset->getFirstLockingInsetOfType(c);
	return 0;
}


bool InsetTabular::insertInset(BufferView * bv, Inset * inset)
{
	if (the_locking_inset)
		return the_locking_inset->insertInset(bv, inset);
	return false;
}


void InsetTabular::insetButtonPress(BufferView * bv, int x, int y, mouse_button::state button)
{
	if (hasSelection() && (button == mouse_button::button3))
		return;

	if (hasSelection()) {
		clearSelection();
		updateLocal(bv, SELECTION, false);
	}

	int const ocell = actcell;
	int const orow = actrow;

	hideInsetCursor(bv);
	if (!locked) {
		locked = true;
		the_locking_inset = 0;
		inset_x = 0;
		inset_y = 0;
	}
	setPos(bv, x, y);
	if (actrow != orow)
		updateLocal(bv, NONE, false);
	clearSelection();
#if 0
	if (button == 3) {
		if ((ocell != actcell) && the_locking_inset) {
			the_locking_inset->insetUnlock(bv);
			updateLocal(bv, CELL, false);
			the_locking_inset = 0;
		}
		showInsetCursor(bv);
		return;
	}
#endif

	bool const inset_hit = insetHit(bv, x, y);

	if ((ocell == actcell) && the_locking_inset && inset_hit) {
		resetPos(bv);
		the_locking_inset->insetButtonPress(bv,
						    x - inset_x, y - inset_y,
						    button);
		return;
	} else if (the_locking_inset) {
		the_locking_inset->insetUnlock(bv);
		updateLocal(bv, CELL, false);
		the_locking_inset = 0;
	}
	if (button == mouse_button::button2) {
		localDispatch(bv, LFUN_PASTESELECTION, "paragraph");
		return;
	}
	if (inset_hit && bv->theLockingInset()) {
		if (!bv->lockInset(static_cast<UpdatableInset*>(tabular->GetCellInset(actcell)))) {
			lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
			return;
		}
		the_locking_inset->insetButtonPress(
			bv, x - inset_x, y - inset_y, button);
		return;
	}
	showInsetCursor(bv);
}


bool InsetTabular::insetButtonRelease(BufferView * bv,
				      int x, int y, mouse_button::state button)
{
	bool ret = false;
	if (the_locking_inset)
		ret = the_locking_inset->insetButtonRelease(bv, x - inset_x,
													y - inset_y, button);
	if (button == mouse_button::button3 && !ret) {
		bv->owner()->getDialogs()->showTabular(this);
		return true;
	}
	return ret;
}


void InsetTabular::insetMotionNotify(BufferView * bv, int x, int y, mouse_button::state button)
{
	if (the_locking_inset) {
		the_locking_inset->insetMotionNotify(bv,
						     x - inset_x,
						     y - inset_y,
						     button);
		return;
	}

	hideInsetCursor(bv);
//	int const old_cell = actcell;

	setPos(bv, x, y);
	if (!hasSelection()) {
		setSelection(actcell, actcell);
	} else {
		setSelection(sel_cell_start, actcell);
	}
	updateLocal(bv, SELECTION, false);
	showInsetCursor(bv);
}


UpdatableInset::RESULT
InsetTabular::localDispatch(BufferView * bv, kb_action action,
			    string const & arg)
{
	// We need to save the value of the_locking_inset as the call to
	// the_locking_inset->LocalDispatch might unlock it.
	old_locking_inset = the_locking_inset;
	UpdatableInset::RESULT result =
		UpdatableInset::localDispatch(bv, action, arg);
	if (result == DISPATCHED || result == DISPATCHED_NOUPDATE) {
		resetPos(bv);
		return result;
	}

	if ((action < 0) && arg.empty())
		return FINISHED;

	bool hs = hasSelection();

	result = DISPATCHED;
	// this one have priority over the locked InsetText, if we're not already
	// inside another tabular then that one get's priority!
	if (getFirstLockingInsetOfType(Inset::TABULAR_CODE) == this) {
		switch (action) {
		case LFUN_SHIFT_TAB:
		case LFUN_TAB:
			hideInsetCursor(bv);
			unlockInsetInInset(bv, the_locking_inset);
			if (action == LFUN_TAB)
				moveNextCell(bv, old_locking_inset != 0);
			else
				movePrevCell(bv, old_locking_inset != 0);
			clearSelection();
			if (hs)
				updateLocal(bv, SELECTION, false);
			if (!the_locking_inset) {
				showInsetCursor(bv);
				return DISPATCHED_NOUPDATE;
			}
			return result;
		// this to avoid compiler warnings.
		default:
			break;
		}
	}

	if (the_locking_inset) {
		result = the_locking_inset->localDispatch(bv, action, arg);
		if (result == DISPATCHED_NOUPDATE) {
			int sc = scroll();
			resetPos(bv);
			if (sc != scroll()) { // inset has been scrolled
				the_locking_inset->toggleInsetCursor(bv);
				updateLocal(bv, FULL, false);
				the_locking_inset->toggleInsetCursor(bv);
			}
			return result;
		} else if (result == DISPATCHED) {
			the_locking_inset->toggleInsetCursor(bv);
			updateLocal(bv, CELL, false);
			the_locking_inset->toggleInsetCursor(bv);
			return result;
		} else if (result == FINISHED_UP) {
			action = LFUN_UP;
		} else if (result == FINISHED_DOWN) {
			action = LFUN_DOWN;
		} else if (result == FINISHED_RIGHT) {
			action = LFUN_RIGHT;
		}
	}

	hideInsetCursor(bv);
	result = DISPATCHED;
	switch (action) {
		// --- Cursor Movements ----------------------------------
	case LFUN_RIGHTSEL: {
		int const start = hasSelection() ? sel_cell_start : actcell;
		if (tabular->IsLastCellInRow(actcell)) {
			setSelection(start, actcell);
			break;
		}

		int end = actcell;
		// if we are starting a selection, only select
		// the current cell at the beginning
		if (hasSelection()) {
			moveRight(bv, false);
			end = actcell;
		}
		setSelection(start, end);
		updateLocal(bv, SELECTION, false);
		break;
	}
	case LFUN_RIGHT:
		result = moveRight(bv);
		clearSelection();
		if (hs)
			updateLocal(bv, SELECTION, false);
		break;
	case LFUN_LEFTSEL: {
		int const start = hasSelection() ? sel_cell_start : actcell;
		if (tabular->IsFirstCellInRow(actcell)) {
			setSelection(start, actcell);
			break;
		}

		int end = actcell;
		// if we are starting a selection, only select
		// the current cell at the beginning
		if (hasSelection()) {
			moveLeft(bv, false);
			end = actcell;
		}
		setSelection(start, end);
		updateLocal(bv, SELECTION, false);
		break;
	}
	case LFUN_LEFT:
		result = moveLeft(bv);
		clearSelection();
		if (hs)
			updateLocal(bv, SELECTION, false);
		break;
	case LFUN_DOWNSEL: {
		int const start = hasSelection() ? sel_cell_start : actcell;
		int const ocell = actcell;
		// if we are starting a selection, only select
		// the current cell at the beginning
		if (hasSelection()) {
			moveDown(bv, false);
			if ((ocell == sel_cell_end) ||
			    (tabular->column_of_cell(ocell)>tabular->column_of_cell(actcell)))
				setSelection(start, tabular->GetCellBelow(sel_cell_end));
			else
				setSelection(start, tabular->GetLastCellBelow(sel_cell_end));
		} else {
			setSelection(start, start);
		}
		updateLocal(bv, SELECTION, false);
	}
	break;
	case LFUN_DOWN:
		result = moveDown(bv, old_locking_inset != 0);
		clearSelection();
		if (hs) {
			updateLocal(bv, SELECTION, false);
		}
		break;
	case LFUN_UPSEL: {
		int const start = hasSelection() ? sel_cell_start : actcell;
		int const ocell = actcell;
		// if we are starting a selection, only select
		// the current cell at the beginning
		if (hasSelection()) {
			moveUp(bv, false);
			if ((ocell == sel_cell_end) ||
			    (tabular->column_of_cell(ocell)>tabular->column_of_cell(actcell)))
				setSelection(start, tabular->GetCellAbove(sel_cell_end));
			else
				setSelection(start, tabular->GetLastCellAbove(sel_cell_end));
		} else {
			setSelection(start, start);
		}
		updateLocal(bv, SELECTION, false);
	}
	break;
	case LFUN_UP:
		result = moveUp(bv, old_locking_inset != 0);
		clearSelection();
		if (hs)
			updateLocal(bv, SELECTION, false);
		break;
	case LFUN_NEXT: {
		UpdateCodes code = CURSOR;
		if (hs) {
			clearSelection();
			code = SELECTION;
		}
		int column = actcol;
		unlockInsetInInset(bv, the_locking_inset);
		if (bv->text->first_y + bv->painter().paperHeight() <
		    (top_baseline + tabular->GetHeightOfTabular()))
			{
				bv->scrollDocView(bv->text->first_y + bv->painter().paperHeight());
				code = FULL;
				actcell = tabular->GetCellBelow(first_visible_cell) + column;
			} else {
				actcell = tabular->GetFirstCellInRow(tabular->rows() - 1) + column;
			}
		resetPos(bv);
		updateLocal(bv, code, false);
		break;
	}
	case LFUN_PRIOR: {
		UpdateCodes code = CURSOR;
		if (hs) {
			clearSelection();
			code = SELECTION;
		}
		int column = actcol;
		unlockInsetInInset(bv, the_locking_inset);
		if (top_baseline < 0) {
			bv->scrollDocView(bv->text->first_y - bv->painter().paperHeight());
			code = FULL;
			if (top_baseline > 0)
				actcell = column;
			else
				actcell = tabular->GetCellBelow(first_visible_cell) + column;
		} else {
			actcell = column;
		}
		resetPos(bv);
		updateLocal(bv, code, false);
		break;
	}
	// none of these make sense for insettabular,
	// but we must catch them to prevent any
	// selection from being confused
	case LFUN_PRIORSEL:
	case LFUN_NEXTSEL:
	case LFUN_WORDLEFT:
	case LFUN_WORDLEFTSEL:
	case LFUN_WORDRIGHT:
	case LFUN_WORDRIGHTSEL:
	case LFUN_DOWN_PARAGRAPH:
	case LFUN_DOWN_PARAGRAPHSEL:
	case LFUN_UP_PARAGRAPH:
	case LFUN_UP_PARAGRAPHSEL:
	case LFUN_BACKSPACE:
	case LFUN_DELETE:
	case LFUN_HOME:
	case LFUN_HOMESEL:
	case LFUN_END:
	case LFUN_ENDSEL:
	case LFUN_BEGINNINGBUF:
	case LFUN_BEGINNINGBUFSEL:
	case LFUN_ENDBUF:
	case LFUN_ENDBUFSEL:
		break;
	case LFUN_LAYOUT_TABULAR:
		bv->owner()->getDialogs()->showTabular(this);
		break;
	case LFUN_TABULAR_FEATURE:
		if (!tabularFeatures(bv, arg))
			result = UNDISPATCHED;
		break;
		// insert file functions
	case LFUN_FILE_INSERT_ASCII_PARA:
	case LFUN_FILE_INSERT_ASCII:
	{
		string tmpstr = getContentsOfAsciiFile(bv, arg, false);
		if (tmpstr.empty())
			break;
		if (insertAsciiString(bv, tmpstr, false))
			updateLocal(bv, INIT, true);
		else
			result = UNDISPATCHED;
		break;
	}
	// cut and paste functions
	case LFUN_CUT:
		if (!copySelection(bv))
			break;
		setUndo(bv, Undo::DELETE,
			bv->text->cursor.par(),
			bv->text->cursor.par()->next());
		cutSelection();
		updateLocal(bv, INIT, true);
		break;
	case LFUN_COPY:
		if (!hasSelection())
			break;
		finishUndo();
		copySelection(bv);
		break;
	case LFUN_PASTESELECTION:
	{
		string const clip(bv->getClipboard());
			if (clip.empty())
			break;
#if 0
		if (clip.find('\t') != string::npos) {
			int cols = 1;
			int rows = 1;
			int maxCols = 1;
			string::size_type len = clip.length();
			string::size_type p = 0;

			while (p < len &&
			      ((p = clip.find_first_of("\t\n", p)) != string::npos)) {
				switch (clip[p]) {
				case '\t':
					++cols;
					break;
				case '\n':
					if ((p+1) < len)
						++rows;
					maxCols = max(cols, maxCols);
					cols = 1;
					break;
				}
				++p;
			}
			maxCols = max(cols, maxCols);
			delete paste_tabular;
			paste_tabular = new LyXTabular(bv->buffer()->params,
						       this, rows, maxCols);
			string::size_type op = 0;
			int cell = 0;
			int cells = paste_tabular->GetNumberOfCells();
			p = cols = 0;
			while ((cell < cells) && (p < len) &&
			      (p = clip.find_first_of("\t\n", p)) != string::npos) {
				if (p >= len)
					break;
				switch (clip[p]) {
				case '\t':
					paste_tabular->GetCellInset(cell)->setText(clip.substr(op, p-op));
					++cols;
					++cell;
					break;
				case '\n':
					paste_tabular->GetCellInset(cell)->setText(clip.substr(op, p-op));
					while (cols++ < maxCols)
						++cell;
					cols = 0;
					break;
				}
				++p;
				op = p;
			}
			// check for the last cell if there is no trailing '\n'
			if ((cell < cells) && (op < len))
				paste_tabular->GetCellInset(cell)->setText(clip.substr(op, len-op));
		} else
#else
		if (!insertAsciiString(bv, clip, true))
#endif
		{
			// so that the clipboard is used and it goes on
			// to default
			// and executes LFUN_PASTESELECTION in insettext!
			delete paste_tabular;
			paste_tabular = 0;
		}
	}
	case LFUN_PASTE:
		if (hasPasteBuffer()) {
			setUndo(bv, Undo::INSERT,
				bv->text->cursor.par(),
				bv->text->cursor.par()->next());
			pasteSelection(bv);
			updateLocal(bv, INIT, true);
			break;
		}
		// ATTENTION: the function above has to be PASTE and PASTESELECTION!!!
	default:
		// handle font changing stuff on selection before we lock the inset
		// in the default part!
		result = UNDISPATCHED;
		if (hs) {
			switch(action) {
			case LFUN_LANGUAGE:
			case LFUN_EMPH:
			case LFUN_BOLD:
			case LFUN_NOUN:
			case LFUN_CODE:
			case LFUN_SANS:
			case LFUN_ROMAN:
			case LFUN_DEFAULT:
			case LFUN_UNDERLINE:
			case LFUN_FONT_SIZE:
				if (bv->Dispatch(action, arg))
					result = DISPATCHED;
				break;
			default:
				break;
			}
		}
		// we try to activate the actual inset and put this event down to
		// the insets dispatch function.
		if ((result == DISPATCHED) || the_locking_inset)
			break;
		nodraw(true);
		if (activateCellInset(bv)) {
			// reset need_update setted in above function!
			need_update = NONE;
			result = the_locking_inset->localDispatch(bv, action, arg);
			if ((result == UNDISPATCHED) || (result >= FINISHED)) {
				unlockInsetInInset(bv, the_locking_inset);
				nodraw(false);
				// we need to update if this was requested before
				updateLocal(bv, NONE, false);
				return UNDISPATCHED;
			} else if (hs) {
				clearSelection();
				// so the below CELL is not set because this is higher
				// priority and we get a full redraw
				need_update = SELECTION;
			}
			nodraw(false);
			updateLocal(bv, CELL, false);
			return result;
		}
		break;
	}
	if (result < FINISHED) {
		if (!the_locking_inset) {
			if (bv->fitCursor())
				updateLocal(bv, FULL, false);
			if (locked)
				showInsetCursor(bv);
		}
	} else
		bv->unlockInset(this);
	return result;
}


int InsetTabular::latex(Buffer const * buf, ostream & os,
			bool fragile, bool fp) const
{
	return tabular->latex(buf, os, fragile, fp);
}


int InsetTabular::ascii(Buffer const * buf, ostream & os, int ll) const
{
	if (ll > 0)
		return tabular->ascii(buf, os, (int)parOwner()->params().depth(),
				      false,0);
	return tabular->ascii(buf, os, 0, false,0);
}


int InsetTabular::linuxdoc(Buffer const * buf, ostream & os) const
{
	os << "<![CDATA[";
	int const ret = tabular->ascii(buf,os,
				       (int)parOwner()->params().depth(),
				       false, 0);
	os << "]]>";
	return ret;
}


int InsetTabular::docbook(Buffer const * buf, ostream & os, bool mixcont) const
{
	int ret = 0;
	Inset * master;

	// if the table is inside a float it doesn't need the informaltable
	// wrapper. Search for it.
	for(master = owner();
	    master && master->lyxCode() != Inset::FLOAT_CODE;
	    master = master->owner());

	if (!master) {
		os << "<informaltable>";
		if (mixcont)
			os << endl;
		ret++;
	}
	ret+= tabular->docbook(buf, os, mixcont);
	if (!master) {
		os << "</informaltable>";
		if (mixcont)
			os << endl;
		ret++;
	}
	return ret;
}


void InsetTabular::validate(LaTeXFeatures & features) const
{
	tabular->Validate(features);
}


bool InsetTabular::calculate_dimensions_of_cells(BufferView * bv,
						 LyXFont const & font,
						 bool reinit) const
{
	int cell = -1;
	int maxAsc = 0;
	int maxDesc = 0;
	InsetText * inset;
	bool changed = false;

	// if we have a locking_inset we should have to check only this cell for
	// change so I'll try this to have a boost, but who knows ;)
	if ((need_update != INIT) &&
	    (the_locking_inset == tabular->GetCellInset(actcell))) {
		for(int i = 0; i < tabular->columns(); ++i) {
			maxAsc = max(tabular->GetCellInset(actrow, i)->ascent(bv, font),
				     maxAsc);
			maxDesc = max(tabular->GetCellInset(actrow, i)->descent(bv, font),
				      maxDesc);
		}
		changed = tabular->SetWidthOfCell(actcell, the_locking_inset->width(bv, font));
		changed = tabular->SetAscentOfRow(actrow, maxAsc + ADD_TO_HEIGHT) || changed;
		changed = tabular->SetDescentOfRow(actrow, maxDesc + ADD_TO_HEIGHT) || changed;
		return changed;
	}
	for (int i = 0; i < tabular->rows(); ++i) {
		maxAsc = 0;
		maxDesc = 0;
		for (int j = 0; j < tabular->columns(); ++j) {
			if (tabular->IsPartOfMultiColumn(i,j))
				continue;
			++cell;
			inset = tabular->GetCellInset(cell);
			if (!reinit && !tabular->GetPWidth(cell).zero())
				inset->update(bv, font, false);
			maxAsc = max(maxAsc, inset->ascent(bv, font));
			maxDesc = max(maxDesc, inset->descent(bv, font));
			changed = tabular->SetWidthOfCell(cell, inset->width(bv, font)) || changed;
		}
		changed = tabular->SetAscentOfRow(i, maxAsc + ADD_TO_HEIGHT) || changed;
		changed = tabular->SetDescentOfRow(i, maxDesc + ADD_TO_HEIGHT) || changed;
	}
	if (changed)
		tabular->reinit();
	return changed;
}


void InsetTabular::getCursorPos(BufferView * bv, int & x, int & y) const
{
	if (the_locking_inset) {
		the_locking_inset->getCursorPos(bv, x, y);
		return;
	}
	x = cursor_.x() - top_x;
	y = cursor_.y();
}


void InsetTabular::toggleInsetCursor(BufferView * bv)
{
	if (nodraw()) {
		if (isCursorVisible())
			bv->hideLockedInsetCursor();
		return;
	}
	if (the_locking_inset) {
		the_locking_inset->toggleInsetCursor(bv);
		return;
	}

	LyXFont font; // = the_locking_inset->GetFont(par, cursor.pos);

	int const asc = font_metrics::maxAscent(font);
	int const desc = font_metrics::maxDescent(font);

	if (isCursorVisible())
		bv->hideLockedInsetCursor();
	else
		bv->showLockedInsetCursor(cursor_.x(), cursor_.y(), asc, desc);
	toggleCursorVisible();
}


void InsetTabular::showInsetCursor(BufferView * bv, bool show)
{
	if (nodraw())
		return;
	if (!isCursorVisible()) {
		LyXFont font; // = GetFont(par, cursor.pos);

		int const asc = font_metrics::maxAscent(font);
		int const desc = font_metrics::maxDescent(font);
		bv->fitLockedInsetCursor(cursor_.x(), cursor_.y(), asc, desc);
		if (show)
			bv->showLockedInsetCursor(cursor_.x(), cursor_.y(), asc, desc);
		setCursorVisible(true);
	}
}


void InsetTabular::hideInsetCursor(BufferView * bv)
{
	if (isCursorVisible()) {
		bv->hideLockedInsetCursor();
		setCursorVisible(false);
	}
}


void InsetTabular::fitInsetCursor(BufferView * bv) const
{
	if (the_locking_inset) {
		int old_first_y = bv->text->first_y;
		the_locking_inset->fitInsetCursor(bv);
		if (old_first_y != bv->text->first_y)
			need_update = FULL;
		return;
	}
	LyXFont font;

	int const asc = font_metrics::maxAscent(font);
	int const desc = font_metrics::maxDescent(font);
	resetPos(bv);

	if (bv->fitLockedInsetCursor(cursor_.x(), cursor_.y(), asc, desc))
		need_update = FULL;
}


void InsetTabular::setPos(BufferView * bv, int x, int y) const
{
	cursor_.y(0);

	actcell = actrow = actcol = 0;
	int ly = tabular->GetDescentOfRow(actrow);

	// first search the right row
	while ((ly < y) && ((actrow+1) < tabular->rows())) {
		cursor_.y(cursor_.y() + tabular->GetDescentOfRow(actrow) +
				 tabular->GetAscentOfRow(actrow + 1) +
				 tabular->GetAdditionalHeight(actrow + 1));
		++actrow;
		ly = cursor_.y() + tabular->GetDescentOfRow(actrow);
	}
	actcell = tabular->GetCellNumber(actrow, actcol);

	// now search the right column
	int lx = tabular->GetWidthOfColumn(actcell) -
		tabular->GetAdditionalWidth(actcell);
	for (; !tabular->IsLastCellInRow(actcell) && lx < x; ++actcell) {
		lx += tabular->GetWidthOfColumn(actcell + 1)
			+ tabular->GetAdditionalWidth(actcell);
	}
	cursor_.x(lx - tabular->GetWidthOfColumn(actcell) + top_x + 2);
	resetPos(bv);
}


int InsetTabular::getCellXPos(int cell) const
{
	int c = cell;

	for (; !tabular->IsFirstCellInRow(c); --c)
		;
	int lx = tabular->GetWidthOfColumn(cell);
	for (; c < cell; ++c) {
		lx += tabular->GetWidthOfColumn(c);
	}
	return (lx - tabular->GetWidthOfColumn(cell) + top_x);
}


void InsetTabular::resetPos(BufferView * bv) const
{
#ifdef WITH_WARNINGS
#warning This should be fixed in the right manner (20011128 Jug)
#endif
	// fast hack to fix infinite repaintings!
	if (in_reset_pos > 10)
		return;

	int cell = 0;
	actcol = tabular->column_of_cell(actcell);
	actrow = 0;
	cursor_.y(0);
	for (; (cell < actcell) && !tabular->IsLastRow(cell); ++cell) {
		if (tabular->IsLastCellInRow(cell)) {
			cursor_.y(cursor_.y() + tabular->GetDescentOfRow(actrow) +
					 tabular->GetAscentOfRow(actrow + 1) +
					 tabular->GetAdditionalHeight(actrow + 1));
			++actrow;
		}
	}
	if (!locked || nodraw()) {
		if (the_locking_inset)
			inset_y = cursor_.y();
		return;
	}
	// we need this only from here on!!!
	++in_reset_pos;
	static int const offset = ADD_TO_TABULAR_WIDTH + 2;
	int new_x = getCellXPos(actcell);
	int old_x = cursor_.x();
	new_x += offset;
	cursor_.x(new_x);
//    cursor.x(getCellXPos(actcell) + offset);
	if ((actcol < tabular->columns()-1) && scroll(false) &&
		(tabular->GetWidthOfTabular() < bv->workWidth()-20))
	{
		scroll(bv, 0.0F);
		updateLocal(bv, FULL, false);
	} else if (the_locking_inset &&
		 (tabular->GetWidthOfColumn(actcell) > bv->workWidth()-20))
	{
		int xx = cursor_.x() - offset + bv->text->getRealCursorX(bv);
		if (xx > (bv->workWidth()-20)) {
			scroll(bv, -(xx - bv->workWidth() + 60));
			updateLocal(bv, FULL, false);
		} else if (xx < 20) {
			if (xx < 0)
				xx = -xx + 60;
			else
				xx = 60;
			scroll(bv, xx);
			updateLocal(bv, FULL, false);
		}
	} else if ((cursor_.x() - offset) > 20 &&
		   (cursor_.x() - offset + tabular->GetWidthOfColumn(actcell))
		   > (bv->workWidth() - 20)) {
		scroll(bv, -tabular->GetWidthOfColumn(actcell) - 20);
		updateLocal(bv, FULL, false);
	} else if ((cursor_.x() - offset) < 20) {
		scroll(bv, 20 - cursor_.x() + offset);
		updateLocal(bv, FULL, false);
	} else if (scroll(false) && top_x > 20 &&
		   (top_x + tabular->GetWidthOfTabular()) > (bv->workWidth() - 20)) {
		scroll(bv, old_x - cursor_.x());
		updateLocal(bv, FULL, false);
	}
	if (the_locking_inset) {
		inset_x = cursor_.x() - top_x + tabular->GetBeginningOfTextInCell(actcell);
		inset_y = cursor_.y();
	}
	if ((!the_locking_inset ||
	     !the_locking_inset->getFirstLockingInsetOfType(TABULAR_CODE)) &&
	    actcell != oldcell) {
		InsetTabular * inset = const_cast<InsetTabular *>(this);
		bv->owner()->getDialogs()->updateTabular(inset);
		oldcell = actcell;
	}
	in_reset_pos = 0;
}


UpdatableInset::RESULT InsetTabular::moveRight(BufferView * bv, bool lock)
{
	if (lock && !old_locking_inset) {
		if (activateCellInset(bv))
			return DISPATCHED;
	} else {
		bool moved = isRightToLeft(bv)
			? movePrevCell(bv) : moveNextCell(bv);
		if (!moved)
			return FINISHED_RIGHT;
		if (lock && activateCellInset(bv))
			return DISPATCHED;
	}
	resetPos(bv);
	return DISPATCHED_NOUPDATE;
}


UpdatableInset::RESULT InsetTabular::moveLeft(BufferView * bv, bool lock)
{
	bool moved = isRightToLeft(bv) ? moveNextCell(bv) : movePrevCell(bv);
	if (!moved)
		return FINISHED;
	if (lock) {       // behind the inset
		if (activateCellInset(bv, 0, 0, mouse_button::none, true))
			return DISPATCHED;
	}
	resetPos(bv);
	return DISPATCHED_NOUPDATE;
}


UpdatableInset::RESULT InsetTabular::moveUp(BufferView * bv, bool lock)
{
	int const ocell = actcell;
	actcell = tabular->GetCellAbove(actcell);
	if (actcell == ocell) // we moved out of the inset
		return FINISHED_UP;
	resetPos(bv);
	if (lock) {
		int x = 0;
		int y = 0;
		if (old_locking_inset) {
			old_locking_inset->getCursorPos(bv, x, y);
			x -= cursor_.x() + tabular->GetBeginningOfTextInCell(actcell);
		}
		if (activateCellInset(bv, x, 0))
			return DISPATCHED;
	}
	return DISPATCHED_NOUPDATE;
}


UpdatableInset::RESULT InsetTabular::moveDown(BufferView * bv, bool lock)
{
	int const ocell = actcell;
	actcell = tabular->GetCellBelow(actcell);
	if (actcell == ocell) // we moved out of the inset
		return FINISHED_DOWN;
	resetPos(bv);
	if (lock) {
		int x = 0;
		int y = 0;
		if (old_locking_inset) {
			old_locking_inset->getCursorPos(bv, x, y);
			x -= cursor_.x() + tabular->GetBeginningOfTextInCell(actcell);
		}
		if (activateCellInset(bv, x, 0))
			return DISPATCHED;
	}
	return DISPATCHED_NOUPDATE;
}


bool InsetTabular::moveNextCell(BufferView * bv, bool lock)
{
	if (isRightToLeft(bv)) {
		if (tabular->IsFirstCellInRow(actcell)) {
			int row = tabular->row_of_cell(actcell);
			if (row == tabular->rows() - 1)
				return false;
			actcell = tabular->GetLastCellInRow(row);
			actcell = tabular->GetCellBelow(actcell);
		} else {
			if (!actcell)
				return false;
			--actcell;
		}
	} else {
		if (tabular->IsLastCell(actcell))
			return false;
		++actcell;
	}
	if (lock) {
		bool rtl = tabular->GetCellInset(actcell)->paragraph()->
			isRightToLeftPar(bv->buffer()->params);
		activateCellInset(bv, 0, 0, mouse_button::none, !rtl);
	}
	resetPos(bv);
	return true;
}


bool InsetTabular::movePrevCell(BufferView * bv, bool lock)
{
	if (isRightToLeft(bv)) {
		if (tabular->IsLastCellInRow(actcell)) {
			int row = tabular->row_of_cell(actcell);
			if (row == 0)
				return false;
			actcell = tabular->GetFirstCellInRow(row);
			actcell = tabular->GetCellAbove(actcell);
		} else {
			if (tabular->IsLastCell(actcell))
				return false;
			++actcell;
		}
	} else {
		if (!actcell) // first cell
			return false;
		--actcell;
	}
	if (lock) {
		bool rtl = tabular->GetCellInset(actcell)->paragraph()->
			isRightToLeftPar(bv->buffer()->params);
		activateCellInset(bv, 0, 0, mouse_button::none, !rtl);
	}
	resetPos(bv);
	return true;
}


bool InsetTabular::deletable() const
{
	return true;
}


void InsetTabular::setFont(BufferView * bv, LyXFont const & font, bool tall,
			   bool selectall)
{
	if (selectall) {
		setSelection(0, tabular->GetNumberOfCells() - 1);
	}
	if (hasSelection()) {
		setUndo(bv, Undo::EDIT,
			bv->text->cursor.par(),
			bv->text->cursor.par()->next());
		bool const frozen = undo_frozen;
		if (!frozen)
			freezeUndo();
		// apply the fontchange on the whole selection
		int sel_row_start;
		int sel_row_end;
		int sel_col_start;
		int sel_col_end;
		getSelection(sel_row_start, sel_row_end, sel_col_start, sel_col_end);
		for(int i = sel_row_start; i <= sel_row_end; ++i) {
			for(int j = sel_col_start; j <= sel_col_end; ++j) {
				tabular->GetCellInset(i, j)->setFont(bv, font, tall, true);
			}
		}
		if (!frozen)
			unFreezeUndo();
		if (selectall)
			clearSelection();
		updateLocal(bv, INIT, true);
	}
	if (the_locking_inset)
		the_locking_inset->setFont(bv, font, tall);
}


bool InsetTabular::tabularFeatures(BufferView * bv, string const & what)
{
	LyXTabular::Feature action = LyXTabular::LAST_ACTION;

	int i = 0;
	for (; tabularFeature[i].action != LyXTabular::LAST_ACTION; ++i) {
		string const tmp = tabularFeature[i].feature;

		if (tmp == what.substr(0, tmp.length())) {
			//if (!compare(tabularFeatures[i].feature.c_str(), what.c_str(),
			//tabularFeatures[i].feature.length())) {
			action = tabularFeature[i].action;
			break;
		}
	}
	if (action == LyXTabular::LAST_ACTION)
		return false;

	string const val =
		frontStrip(what.substr(tabularFeature[i].feature.length()));
	tabularFeatures(bv, action, val);
	return true;
}

static void checkLongtableSpecial(LyXTabular::ltType & ltt,
				  string const & special, bool & flag)
{
	if (special == "dl_above") {
		ltt.topDL = flag;
		ltt.set = false;
	} else if (special == "dl_below") {
		ltt.bottomDL = flag;
		ltt.set = false;
	} else if (special == "empty") {
		ltt.empty = flag;
		ltt.set = false;
	} else if (flag) {
		ltt.empty = false;
		ltt.set = true;
	}
}


void InsetTabular::tabularFeatures(BufferView * bv,
				   LyXTabular::Feature feature,
				   string const & value)
{
	int sel_col_start;
	int sel_col_end;
	int sel_row_start;
	int sel_row_end;
	bool setLines = false;
	LyXAlignment setAlign = LYX_ALIGN_LEFT;
	LyXTabular::VAlignment setVAlign = LyXTabular::LYX_VALIGN_TOP;

	switch (feature) {
	case LyXTabular::M_ALIGN_LEFT:
	case LyXTabular::ALIGN_LEFT:
		setAlign = LYX_ALIGN_LEFT;
		break;
	case LyXTabular::M_ALIGN_RIGHT:
	case LyXTabular::ALIGN_RIGHT:
		setAlign = LYX_ALIGN_RIGHT;
		break;
	case LyXTabular::M_ALIGN_CENTER:
	case LyXTabular::ALIGN_CENTER:
		setAlign = LYX_ALIGN_CENTER;
		break;
	case LyXTabular::M_VALIGN_TOP:
	case LyXTabular::VALIGN_TOP:
		setVAlign = LyXTabular::LYX_VALIGN_TOP;
		break;
	case LyXTabular::M_VALIGN_BOTTOM:
	case LyXTabular::VALIGN_BOTTOM:
		setVAlign = LyXTabular::LYX_VALIGN_BOTTOM;
		break;
	case LyXTabular::M_VALIGN_CENTER:
	case LyXTabular::VALIGN_CENTER:
		setVAlign = LyXTabular::LYX_VALIGN_CENTER;
		break;
	default:
		break;
	}
	if (hasSelection()) {
		getSelection(sel_row_start, sel_row_end, sel_col_start, sel_col_end);
	} else {
		sel_col_start = sel_col_end = tabular->column_of_cell(actcell);
		sel_row_start = sel_row_end = tabular->row_of_cell(actcell);
	}
	setUndo(bv, Undo::FINISH,
		bv->text->cursor.par(),
		bv->text->cursor.par()->next());

	int row =  tabular->row_of_cell(actcell);
	int column = tabular->column_of_cell(actcell);
	bool flag = true;
	LyXTabular::ltType ltt;

	switch (feature) {
	case LyXTabular::SET_PWIDTH:
	{
		LyXLength const vallen(value);
		LyXLength const & tmplen = tabular->GetColumnPWidth(actcell);

		bool const update = (tmplen != vallen);
		tabular->SetColumnPWidth(actcell, vallen);
		if (update) {
			int cell;
			for (int i = 0; i < tabular->rows(); ++i) {
				cell = tabular->GetCellNumber(i,column);
				tabular->GetCellInset(cell)->resizeLyXText(bv);
			}
			updateLocal(bv, INIT, true);
		}
	}
	break;
	case LyXTabular::SET_MPWIDTH:
	{
		LyXLength const vallen(value);
		LyXLength const & tmplen = tabular->GetPWidth(actcell);

		bool const update = (tmplen != vallen);
		tabular->SetMColumnPWidth(actcell, vallen);
		if (update) {
			for (int i = 0; i < tabular->rows(); ++i) {
				tabular->GetCellInset(tabular->GetCellNumber(i, column))->
					resizeLyXText(bv);
			}
			updateLocal(bv, INIT, true);
		}
	}
	break;
	case LyXTabular::SET_SPECIAL_COLUMN:
	case LyXTabular::SET_SPECIAL_MULTI:
		tabular->SetAlignSpecial(actcell,value,feature);
		updateLocal(bv, FULL, true);
		break;
	case LyXTabular::APPEND_ROW:
		// append the row into the tabular
		unlockInsetInInset(bv, the_locking_inset);
		tabular->AppendRow(bv->buffer()->params, actcell);
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::APPEND_COLUMN:
		// append the column into the tabular
		unlockInsetInInset(bv, the_locking_inset);
		tabular->AppendColumn(bv->buffer()->params, actcell);
		actcell = tabular->GetCellNumber(row, column);
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::DELETE_ROW:
		unlockInsetInInset(bv, the_locking_inset);
		for(int i = sel_row_start; i <= sel_row_end; ++i) {
			tabular->DeleteRow(sel_row_start);
		}
		if (sel_row_start >= tabular->rows())
			--sel_row_start;
		actcell = tabular->GetCellNumber(sel_row_start, column);
		clearSelection();
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::DELETE_COLUMN:
		unlockInsetInInset(bv, the_locking_inset);
		for(int i = sel_col_start; i <= sel_col_end; ++i) {
			tabular->DeleteColumn(sel_col_start);
		}
		if (sel_col_start >= tabular->columns())
			--sel_col_start;
		actcell = tabular->GetCellNumber(row, sel_col_start);
		clearSelection();
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::M_TOGGLE_LINE_TOP:
		flag = false;
	case LyXTabular::TOGGLE_LINE_TOP:
	{
		bool lineSet = !tabular->TopLine(actcell, flag);
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetTopLine(
					tabular->GetCellNumber(i, j),
					lineSet, flag);
		updateLocal(bv, INIT, true);
		break;
	}

	case LyXTabular::M_TOGGLE_LINE_BOTTOM:
		flag = false;
	case LyXTabular::TOGGLE_LINE_BOTTOM:
	{
		bool lineSet = !tabular->BottomLine(actcell, flag);
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetBottomLine(
					tabular->GetCellNumber(i, j),
					lineSet,
					flag);
		updateLocal(bv, INIT, true);
		break;
	}

	case LyXTabular::M_TOGGLE_LINE_LEFT:
		flag = false;
	case LyXTabular::TOGGLE_LINE_LEFT:
	{
		bool lineSet = !tabular->LeftLine(actcell, flag);
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetLeftLine(
					tabular->GetCellNumber(i,j),
					lineSet,
					flag);
		updateLocal(bv, INIT, true);
		break;
	}

	case LyXTabular::M_TOGGLE_LINE_RIGHT:
		flag = false;
	case LyXTabular::TOGGLE_LINE_RIGHT:
	{
		bool lineSet = !tabular->RightLine(actcell, flag);
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetRightLine(
					tabular->GetCellNumber(i,j),
					lineSet,
					flag);
		updateLocal(bv, INIT, true);
		break;
	}

	case LyXTabular::M_ALIGN_LEFT:
	case LyXTabular::M_ALIGN_RIGHT:
	case LyXTabular::M_ALIGN_CENTER:
		flag = false;
	case LyXTabular::ALIGN_LEFT:
	case LyXTabular::ALIGN_RIGHT:
	case LyXTabular::ALIGN_CENTER:
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetAlignment(
					tabular->GetCellNumber(i, j),
					setAlign,
					flag);
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::M_VALIGN_TOP:
	case LyXTabular::M_VALIGN_BOTTOM:
	case LyXTabular::M_VALIGN_CENTER:
		flag = false;
	case LyXTabular::VALIGN_TOP:
	case LyXTabular::VALIGN_BOTTOM:
	case LyXTabular::VALIGN_CENTER:
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetVAlignment(
					tabular->GetCellNumber(i, j),
					setVAlign, flag);
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::MULTICOLUMN:
	{
		if (sel_row_start != sel_row_end) {
			Alert::alert(_("Impossible Operation!"),
				   _("Multicolumns can only be horizontally."),
				   _("Sorry."));
			return;
		}
		// just multicol for one Single Cell
		if (!hasSelection()) {
			// check wether we are completly in a multicol
			if (tabular->IsMultiColumn(actcell)) {
				tabular->UnsetMultiColumn(actcell);
				updateLocal(bv, INIT, true);
			} else {
				tabular->SetMultiColumn(bv->buffer(), actcell, 1);
				updateLocal(bv, CELL, true);
			}
			return;
		}
		// we have a selection so this means we just add all this
		// cells to form a multicolumn cell
		int s_start;
		int s_end;

		if (sel_cell_start > sel_cell_end) {
			s_start = sel_cell_end;
			s_end = sel_cell_start;
		} else {
			s_start = sel_cell_start;
			s_end = sel_cell_end;
		}
		tabular->SetMultiColumn(bv->buffer(), s_start, s_end - s_start + 1);
		actcell = s_start;
		clearSelection();
		updateLocal(bv, INIT, true);
		break;
	}
	case LyXTabular::SET_ALL_LINES:
		setLines = true;
	case LyXTabular::UNSET_ALL_LINES:
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetAllLines(
					tabular->GetCellNumber(i,j), setLines);
		updateLocal(bv, INIT, true);
		break;
	case LyXTabular::SET_LONGTABULAR:
		tabular->SetLongTabular(true);
		updateLocal(bv, INIT, true); // because this toggles displayed
		break;
	case LyXTabular::UNSET_LONGTABULAR:
		tabular->SetLongTabular(false);
		updateLocal(bv, INIT, true); // because this toggles displayed
		break;
	case LyXTabular::SET_ROTATE_TABULAR:
		tabular->SetRotateTabular(true);
		break;
	case LyXTabular::UNSET_ROTATE_TABULAR:
		tabular->SetRotateTabular(false);
		break;
	case LyXTabular::SET_ROTATE_CELL:
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j<=sel_col_end; ++j)
				tabular->SetRotateCell(
					tabular->GetCellNumber(i, j),
					true);
		break;
	case LyXTabular::UNSET_ROTATE_CELL:
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetRotateCell(
					tabular->GetCellNumber(i, j), false);
		break;
	case LyXTabular::SET_USEBOX:
	{
		LyXTabular::BoxType val = LyXTabular::BoxType(strToInt(value));
		if (val == tabular->GetUsebox(actcell))
			val = LyXTabular::BOX_NONE;
		for (int i = sel_row_start; i <= sel_row_end; ++i)
			for (int j = sel_col_start; j <= sel_col_end; ++j)
				tabular->SetUsebox(
					tabular->GetCellNumber(i, j), val);
		break;
	}
	case LyXTabular::UNSET_LTFIRSTHEAD:
		flag = false;
	case LyXTabular::SET_LTFIRSTHEAD:
		(void)tabular->GetRowOfLTFirstHead(row, ltt);
		checkLongtableSpecial(ltt, value, flag);
		tabular->SetLTHead(row, flag, ltt, true);
		break;
	case LyXTabular::UNSET_LTHEAD:
		flag = false;
	case LyXTabular::SET_LTHEAD:
		(void)tabular->GetRowOfLTHead(row, ltt);
		checkLongtableSpecial(ltt, value, flag);
		tabular->SetLTHead(row, flag, ltt, false);
		break;
	case LyXTabular::UNSET_LTFOOT:
		flag = false;
	case LyXTabular::SET_LTFOOT:
		(void)tabular->GetRowOfLTFoot(row, ltt);
		checkLongtableSpecial(ltt, value, flag);
		tabular->SetLTFoot(row, flag, ltt, false);
		break;
	case LyXTabular::UNSET_LTLASTFOOT:
		flag = false;
	case LyXTabular::SET_LTLASTFOOT:
		(void)tabular->GetRowOfLTLastFoot(row, ltt);
		checkLongtableSpecial(ltt, value, flag);
		tabular->SetLTFoot(row, flag, ltt, true);
		break;
	case LyXTabular::SET_LTNEWPAGE:
	{
		bool what = !tabular->GetLTNewPage(row);
		tabular->SetLTNewPage(row, what);
		break;
	}
	// dummy stuff just to avoid warnings
	case LyXTabular::LAST_ACTION:
		break;
	}
}


bool InsetTabular::activateCellInset(BufferView * bv, int x, int y, mouse_button::state button,
				     bool behind)
{
	UpdatableInset * inset =
		static_cast<UpdatableInset*>(tabular->GetCellInset(actcell));
	LyXFont font(LyXFont::ALL_SANE);
	if (behind) {
		x = inset->x() + inset->width(bv, font);
		y = inset->descent(bv, font);
	}
	//inset_x = cursor.x() - top_x + tabular->GetBeginningOfTextInCell(actcell);
	//inset_y = cursor.y();
	inset->edit(bv, x,  y, button);
	if (!the_locking_inset)
		return false;
	updateLocal(bv, CELL, false);
	return (the_locking_inset != 0);
}


bool InsetTabular::activateCellInsetAbs(BufferView * bv, int x, int y,
					mouse_button::state button)
{
	inset_x = cursor_.x()
		- top_x + tabular->GetBeginningOfTextInCell(actcell);
	inset_y = cursor_.y();
	return activateCellInset(bv, x - inset_x, y - inset_y, button);
}


bool InsetTabular::insetHit(BufferView *, int x, int) const
{
	return (x + top_x)
		> (cursor_.x() + tabular->GetBeginningOfTextInCell(actcell));
}


// This returns paperWidth() if the cell-width is unlimited or the width
// in pixels if we have a pwidth for this cell.
int InsetTabular::getMaxWidthOfCell(BufferView * bv, int cell) const
{
	LyXLength const len = tabular->GetPWidth(cell);

	if (len.zero())
		return -1;
	return len.inPixels(latexTextWidth(bv), bv->text->defaultHeight());
}


int InsetTabular::getMaxWidth(BufferView * bv,
			      UpdatableInset const * inset) const
{
	int cell = tabular->GetCellFromInset(inset, actcell);

	if (cell == -1) {
		lyxerr << "Own inset not found, shouldn't really happen!"
		       << endl;
		return -1;
	}

	int w = getMaxWidthOfCell(bv, cell);
	if (w > 0) {
		// because the inset then subtracts it's top_x and owner->x()
		w += (inset->x() - top_x);
	}

	return w;
}


void InsetTabular::deleteLyXText(BufferView * bv, bool recursive) const
{
	resizeLyXText(bv, recursive);
}


void InsetTabular::resizeLyXText(BufferView * bv, bool force) const
{
	if (force) {
		for(int i = 0; i < tabular->rows(); ++i) {
			for(int j = 0; j < tabular->columns(); ++j) {
				tabular->GetCellInset(i, j)->resizeLyXText(bv, true);
			}
		}
	}
	need_update = FULL;
}


LyXText * InsetTabular::getLyXText(BufferView const * bv,
				   bool const recursive) const
{
	if (the_locking_inset)
		return the_locking_inset->getLyXText(bv, recursive);
#if 0
	// if we're locked lock the actual insettext and return it's LyXText!!!
	if (locked) {
		UpdatableInset * inset =
			static_cast<UpdatableInset*>(tabular->GetCellInset(actcell));
		inset->edit(const_cast<BufferView *>(bv), 0,  0, 0);
		return the_locking_inset->getLyXText(bv, recursive);
	}
#endif
	return Inset::getLyXText(bv, recursive);
}


bool InsetTabular::showInsetDialog(BufferView * bv) const
{
	if (!the_locking_inset || !the_locking_inset->showInsetDialog(bv))
		bv->owner()->getDialogs()
			->showTabular(const_cast<InsetTabular *>(this));
	return true;
}


void InsetTabular::openLayoutDialog(BufferView * bv) const
{
	if (the_locking_inset) {
		InsetTabular * i = static_cast<InsetTabular *>
			(the_locking_inset->getFirstLockingInsetOfType(TABULAR_CODE));
		if (i) {
			i->openLayoutDialog(bv);
			return;
		}
	}
	bv->owner()->getDialogs()->showTabular(
		const_cast<InsetTabular *>(this));
}


//
// function returns an object as defined in func_status.h:
// states OK, Unknown, Disabled, On, Off.
//
FuncStatus InsetTabular::getStatus(string const & what) const
{
	int action = LyXTabular::LAST_ACTION;
	FuncStatus status;

	int i = 0;
	for (; tabularFeature[i].action != LyXTabular::LAST_ACTION; ++i) {
		string const tmp = tabularFeature[i].feature;
		if (tmp == what.substr(0, tmp.length())) {
			//if (!compare(tabularFeatures[i].feature.c_str(), what.c_str(),
			//   tabularFeatures[i].feature.length())) {
			action = tabularFeature[i].action;
			break;
		}
	}
	if (action == LyXTabular::LAST_ACTION) {
		status.clear();
		return status.unknown(true);
	}

	string const argument = frontStrip(what.substr(tabularFeature[i].feature.length()));

	int sel_row_start;
	int sel_row_end;
	int dummy;
	LyXTabular::ltType dummyltt;
	bool flag = true;

	if (hasSelection()) {
		getSelection(sel_row_start, sel_row_end, dummy, dummy);
	} else {
		sel_row_start = sel_row_end = tabular->row_of_cell(actcell);
	}

	switch (action) {
	case LyXTabular::SET_PWIDTH:
	case LyXTabular::SET_MPWIDTH:
	case LyXTabular::SET_SPECIAL_COLUMN:
	case LyXTabular::SET_SPECIAL_MULTI:
		return status.disabled(true);

	case LyXTabular::APPEND_ROW:
	case LyXTabular::APPEND_COLUMN:
	case LyXTabular::DELETE_ROW:
	case LyXTabular::DELETE_COLUMN:
	case LyXTabular::SET_ALL_LINES:
	case LyXTabular::UNSET_ALL_LINES:
		return status.clear();

	case LyXTabular::MULTICOLUMN:
		status.setOnOff(tabular->IsMultiColumn(actcell));
		break;
	case LyXTabular::M_TOGGLE_LINE_TOP:
		flag = false;
	case LyXTabular::TOGGLE_LINE_TOP:
		status.setOnOff(tabular->TopLine(actcell, flag));
		break;
	case LyXTabular::M_TOGGLE_LINE_BOTTOM:
		flag = false;
	case LyXTabular::TOGGLE_LINE_BOTTOM:
		status.setOnOff(tabular->BottomLine(actcell, flag));
		break;
	case LyXTabular::M_TOGGLE_LINE_LEFT:
		flag = false;
	case LyXTabular::TOGGLE_LINE_LEFT:
		status.setOnOff(tabular->LeftLine(actcell, flag));
		break;
	case LyXTabular::M_TOGGLE_LINE_RIGHT:
		flag = false;
	case LyXTabular::TOGGLE_LINE_RIGHT:
		status.setOnOff(tabular->RightLine(actcell, flag));
		break;
	case LyXTabular::M_ALIGN_LEFT:
		flag = false;
	case LyXTabular::ALIGN_LEFT:
		status.setOnOff(tabular->GetAlignment(actcell, flag) == LYX_ALIGN_LEFT);
		break;
	case LyXTabular::M_ALIGN_RIGHT:
		flag = false;
	case LyXTabular::ALIGN_RIGHT:
		status.setOnOff(tabular->GetAlignment(actcell, flag) == LYX_ALIGN_RIGHT);
		break;
	case LyXTabular::M_ALIGN_CENTER:
		flag = false;
	case LyXTabular::ALIGN_CENTER:
		status.setOnOff(tabular->GetAlignment(actcell, flag) == LYX_ALIGN_CENTER);
		break;
	case LyXTabular::M_VALIGN_TOP:
		flag = false;
	case LyXTabular::VALIGN_TOP:
		status.setOnOff(tabular->GetVAlignment(actcell, flag) == LyXTabular::LYX_VALIGN_TOP);
		break;
	case LyXTabular::M_VALIGN_BOTTOM:
		flag = false;
	case LyXTabular::VALIGN_BOTTOM:
		status.setOnOff(tabular->GetVAlignment(actcell, flag) == LyXTabular::LYX_VALIGN_BOTTOM);
		break;
	case LyXTabular::M_VALIGN_CENTER:
		flag = false;
	case LyXTabular::VALIGN_CENTER:
		status.setOnOff(tabular->GetVAlignment(actcell, flag) == LyXTabular::LYX_VALIGN_CENTER);
		break;
	case LyXTabular::SET_LONGTABULAR:
		status.setOnOff(tabular->IsLongTabular());
		break;
	case LyXTabular::UNSET_LONGTABULAR:
		status.setOnOff(!tabular->IsLongTabular());
		break;
	case LyXTabular::SET_ROTATE_TABULAR:
		status.setOnOff(tabular->GetRotateTabular());
		break;
	case LyXTabular::UNSET_ROTATE_TABULAR:
		status.setOnOff(!tabular->GetRotateTabular());
		break;
	case LyXTabular::SET_ROTATE_CELL:
		status.setOnOff(tabular->GetRotateCell(actcell));
		break;
	case LyXTabular::UNSET_ROTATE_CELL:
		status.setOnOff(!tabular->GetRotateCell(actcell));
		break;
	case LyXTabular::SET_USEBOX:
		status.setOnOff(strToInt(argument) == tabular->GetUsebox(actcell));
		break;
	case LyXTabular::SET_LTFIRSTHEAD:
		status.setOnOff(tabular->GetRowOfLTHead(sel_row_start, dummyltt));
		break;
	case LyXTabular::SET_LTHEAD:
		status.setOnOff(tabular->GetRowOfLTHead(sel_row_start, dummyltt));
		break;
	case LyXTabular::SET_LTFOOT:
		status.setOnOff(tabular->GetRowOfLTFoot(sel_row_start, dummyltt));
		break;
	case LyXTabular::SET_LTLASTFOOT:
		status.setOnOff(tabular->GetRowOfLTFoot(sel_row_start, dummyltt));
		break;
	case LyXTabular::SET_LTNEWPAGE:
		status.setOnOff(tabular->GetLTNewPage(sel_row_start));
		break;
	default:
		status.clear();
		status.disabled(true);
		break;
	}
	return status;
}


vector<string> const InsetTabular::getLabelList() const
{
	return tabular->getLabelList();
}


bool InsetTabular::copySelection(BufferView * bv)
{
	if (!hasSelection())
		return false;

	int sel_col_start = tabular->column_of_cell(sel_cell_start);
	int sel_col_end = tabular->column_of_cell(sel_cell_end);
	if (sel_col_start > sel_col_end) {
		sel_col_start = sel_col_end;
		sel_col_end = tabular->right_column_of_cell(sel_cell_start);
	} else {
		sel_col_end = tabular->right_column_of_cell(sel_cell_end);
	}
	int const columns = sel_col_end - sel_col_start + 1;

	int sel_row_start = tabular->row_of_cell(sel_cell_start);
	int sel_row_end = tabular->row_of_cell(sel_cell_end);
	if (sel_row_start > sel_row_end) {
		swap(sel_row_start, sel_row_end);
	}
	int const rows = sel_row_end - sel_row_start + 1;

	delete paste_tabular;
	paste_tabular = new LyXTabular(bv->buffer()->params,
				       this, *tabular); // rows, columns);
	for (int i = 0; i < sel_row_start; ++i)
		paste_tabular->DeleteRow(0);
	while (paste_tabular->rows() > rows)
		paste_tabular->DeleteRow(rows);
	paste_tabular->SetTopLine(0, true, true);
	paste_tabular->SetBottomLine(paste_tabular->GetFirstCellInRow(rows - 1),
				     true, true);
	for (int i = 0; i < sel_col_start; ++i)
		paste_tabular->DeleteColumn(0);
	while (paste_tabular->columns() > columns)
		paste_tabular->DeleteColumn(columns);
	paste_tabular->SetLeftLine(0, true, true);
	paste_tabular->SetRightLine(paste_tabular->GetLastCellInRow(0),
				    true, true);

	ostringstream sstr;
	paste_tabular->ascii(bv->buffer(), sstr,
			     (int)parOwner()->params().depth(), true, '\t');
	bv->stuffClipboard(sstr.str().c_str());
	return true;
}


bool InsetTabular::pasteSelection(BufferView * bv)
{
	if (!paste_tabular)
		return false;

	for (int r1 = 0, r2 = actrow;
	     (r1 < paste_tabular->rows()) && (r2 < tabular->rows());
	     ++r1, ++r2) {
		for(int c1 = 0, c2 = actcol;
		    (c1 < paste_tabular->columns()) && (c2 < tabular->columns());
		    ++c1, ++c2) {
			if (paste_tabular->IsPartOfMultiColumn(r1,c1) &&
			    tabular->IsPartOfMultiColumn(r2,c2))
				continue;
			if (paste_tabular->IsPartOfMultiColumn(r1,c1)) {
				--c2;
				continue;
			}
			if (tabular->IsPartOfMultiColumn(r2,c2)) {
				--c1;
				continue;
			}
			int const n1 = paste_tabular->GetCellNumber(r1, c1);
			int const n2 = tabular->GetCellNumber(r2, c2);
			*(tabular->GetCellInset(n2)) = *(paste_tabular->GetCellInset(n1));
			tabular->GetCellInset(n2)->setOwner(this);
			tabular->GetCellInset(n2)->deleteLyXText(bv);
		}
	}
	return true;
}


bool InsetTabular::cutSelection()
{
	if (!hasSelection())
		return false;

	int sel_col_start = tabular->column_of_cell(sel_cell_start);
	int sel_col_end = tabular->column_of_cell(sel_cell_end);
	if (sel_col_start > sel_col_end) {
		sel_col_start = sel_col_end;
		sel_col_end = tabular->right_column_of_cell(sel_cell_start);
	} else {
		sel_col_end = tabular->right_column_of_cell(sel_cell_end);
	}
	int sel_row_start = tabular->row_of_cell(sel_cell_start);
	int sel_row_end = tabular->row_of_cell(sel_cell_end);
	if (sel_row_start > sel_row_end) {
		swap(sel_row_start, sel_row_end);
	}
	if (sel_cell_start > sel_cell_end) {
		swap(sel_cell_start, sel_cell_end);
	}
	for (int i = sel_row_start; i <= sel_row_end; ++i) {
		for (int j = sel_col_start; j <= sel_col_end; ++j) {
			tabular->GetCellInset(tabular->GetCellNumber(i, j))->clear();
		}
	}
	return true;
}


bool InsetTabular::isRightToLeft(BufferView * bv)
{
	return bv->getParentLanguage(this)->RightToLeft();
}


bool InsetTabular::nodraw() const
{
	if (!UpdatableInset::nodraw() && the_locking_inset)
		return the_locking_inset->nodraw();
	return UpdatableInset::nodraw();
}


int InsetTabular::scroll(bool recursive) const
{
	int sx = UpdatableInset::scroll(false);

	if (recursive && the_locking_inset)
		sx += the_locking_inset->scroll(recursive);

	return sx;
}


bool InsetTabular::doClearArea() const
{
	return !locked || (need_update & (FULL|INIT));
}


void InsetTabular::getSelection(int & srow, int & erow,
				int & scol, int & ecol) const
{
	int const start = hasSelection() ? sel_cell_start : actcell;
	int const end = hasSelection() ? sel_cell_end : actcell;

	srow = tabular->row_of_cell(start);
	erow = tabular->row_of_cell(end);
	if (srow > erow) {
		swap(srow, erow);
	}

	scol = tabular->column_of_cell(start);
	ecol = tabular->column_of_cell(end);
	if (scol > ecol) {
		swap(scol, ecol);
	} else {
		ecol = tabular->right_column_of_cell(end);
	}
}


Paragraph * InsetTabular::getParFromID(int id) const
{
	Paragraph * result;
	for(int i = 0; i < tabular->rows(); ++i) {
		for(int j = 0; j < tabular->columns(); ++j) {
			if ((result = tabular->GetCellInset(i, j)->getParFromID(id)))
				return result;
		}
	}
	return 0;
}


Paragraph * InsetTabular::firstParagraph() const
{
	if (the_locking_inset)
		return the_locking_inset->firstParagraph();
	return 0;
}


Paragraph * InsetTabular::getFirstParagraph(int i) const
{
	return (i < tabular->GetNumberOfCells())
		? tabular->GetCellInset(i)->getFirstParagraph(0)
		: 0;
}


LyXCursor const & InsetTabular::cursor(BufferView * bv) const
{
	if (the_locking_inset)
		return the_locking_inset->cursor(bv);
	return Inset::cursor(bv);
}


Inset * InsetTabular::getInsetFromID(int id_arg) const
{
	if (id_arg == id())
		return const_cast<InsetTabular *>(this);

	Inset * result;
	for(int i = 0; i < tabular->rows(); ++i) {
		for(int j = 0; j < tabular->columns(); ++j) {
			if ((result = tabular->GetCellInset(i, j)->getInsetFromID(id_arg)))
				return result;
		}
	}
	return 0;
}


string const
InsetTabular::selectNextWordToSpellcheck(BufferView * bv, float & value) const
{
	nodraw(true);
	if (the_locking_inset) {
		string const str(the_locking_inset->selectNextWordToSpellcheck(bv, value));
		if (!str.empty()) {
			nodraw(false);
			return str;
		}
		if (tabular->IsLastCell(actcell)) {
			bv->unlockInset(const_cast<InsetTabular *>(this));
			nodraw(false);
			return string();
		}
		++actcell;
	}
	// otherwise we have to lock the next inset and ask for it's selecttion
	UpdatableInset * inset =
		static_cast<UpdatableInset*>(tabular->GetCellInset(actcell));
	inset->edit(bv, 0,  0, mouse_button::none);
	string const str(selectNextWordInt(bv, value));
	nodraw(false);
	if (!str.empty())
		resetPos(bv);
	return str;
}


string InsetTabular::selectNextWordInt(BufferView * bv, float & value) const
{
	// when entering this function the inset should be ALWAYS locked!
	lyx::Assert(the_locking_inset);

	string const str(the_locking_inset->selectNextWordToSpellcheck(bv, value));
	if (!str.empty())
		return str;

	if (tabular->IsLastCell(actcell)) {
		bv->unlockInset(const_cast<InsetTabular *>(this));
		return string();
	}

	// otherwise we have to lock the next inset and ask for it's selecttion
	UpdatableInset * inset =
		static_cast<UpdatableInset*>(tabular->GetCellInset(++actcell));
	inset->edit(bv);
	return selectNextWordInt(bv, value);
}


void InsetTabular::selectSelectedWord(BufferView * bv)
{
	if (the_locking_inset) {
		the_locking_inset->selectSelectedWord(bv);
		return;
	}
	return;
}


void InsetTabular::toggleSelection(BufferView * bv, bool kill_selection)
{
	if (the_locking_inset) {
		the_locking_inset->toggleSelection(bv, kill_selection);
	}
}


bool InsetTabular::searchForward(BufferView * bv, string const & str,
				 bool cs, bool mw)
{
	if (the_locking_inset) {
		if (the_locking_inset->searchForward(bv, str, cs, mw)) {
			updateLocal(bv, CELL, false);
			return true;
		}
	}
	do {
		InsetText * inset = tabular->GetCellInset(actcell);
		if (inset->searchForward(bv, str, cs, mw)) {
			updateLocal(bv, FULL, false);
			return true;
		}
		++actcell;
	} while (!tabular->IsLastCell(actcell));
	return false;
}


bool InsetTabular::searchBackward(BufferView * bv, string const & str,
			       bool cs, bool mw)
{
	if (the_locking_inset) {
		if (the_locking_inset->searchBackward(bv, str, cs, mw)) {
			updateLocal(bv, CELL, false);
			return true;
		}
	}
	if (!locked)
		actcell = tabular->GetNumberOfCells();

	while (actcell) {
		--actcell;
		InsetText * inset = tabular->GetCellInset(actcell);
		if (inset->searchBackward(bv, str, cs, mw)) {
			updateLocal(bv, CELL, false);
			return true;
		}
	}
	return false;
}


bool InsetTabular::insetAllowed(Inset::Code code) const
{
	if (the_locking_inset)
		return the_locking_inset->insetAllowed(code);
	// we return true here because if the inset is not locked someone
	// wants to insert something in one of our insettexts and we generally
	// allow to do so.
	return true;
}


bool InsetTabular::forceDefaultParagraphs(Inset const * in) const
{
	const int cell = tabular->GetCellFromInset(in, actcell);

	if (cell != -1)
		return tabular->GetPWidth(cell).zero();

	// well we didn't obviously find it so maybe our owner knows more
	if (owner())
		return owner()->forceDefaultParagraphs(in);
	// if we're here there is really something strange going on!!!
	return false;
}

bool InsetTabular::insertAsciiString(BufferView * bv, string const & buf,
				     bool usePaste)
{
	if (buf.length() <= 0)
		return true;

	int cols = 1;
	int rows = 1;
	int maxCols = 1;
	string::size_type len = buf.length();
	string::size_type p = 0;

	while (p < len &&
	       ((p = buf.find_first_of("\t\n", p)) != string::npos))
	{
		switch (buf[p]) {
		case '\t':
			++cols;
			break;
		case '\n':
			if ((p+1) < len)
				++rows;
			maxCols = max(cols, maxCols);
			cols = 1;
			break;
		}
		++p;
	}
	maxCols = max(cols, maxCols);
	LyXTabular * loctab;
	int cell = 0;
	int ocol = 0;
	int row = 0;
	if (usePaste) {
		delete paste_tabular;
		paste_tabular = new LyXTabular(bv->buffer()->params,
					       this, rows, maxCols);
		loctab = paste_tabular;
		cols = 0;
	} else {
		loctab = tabular.get();
		cell = actcell;
		ocol = actcol;
		row = actrow;
	}
	string::size_type op = 0;
	int cells = loctab->GetNumberOfCells();
	p = 0;
	cols = ocol;
	rows = loctab->rows();
	int const columns = loctab->columns();
	while ((cell < cells) && (p < len) && (row < rows) &&
	       (p = buf.find_first_of("\t\n", p)) != string::npos)
	{
		if (p >= len)
			break;
		switch (buf[p]) {
		case '\t':
			// we can only set this if we are not too far right
			if (cols < columns) {
				InsetText * ti = loctab->GetCellInset(cell);
				LyXFont const font = ti->getLyXText(bv)->
					getFont(bv->buffer(), ti->paragraph(), 0);
				ti->setText(buf.substr(op, p-op), font);
				++cols;
				++cell;
			}
			break;
		case '\n':
			// we can only set this if we are not too far right
			if (cols < columns) {
				InsetText * ti = loctab->GetCellInset(cell);
				LyXFont const font = ti->getLyXText(bv)->
					getFont(bv->buffer(), ti->paragraph(), 0);
				ti->setText(buf.substr(op, p-op), font);
			}
			cols = ocol;
			++row;
			if (row < rows)
				cell = loctab->GetCellNumber(row, cols);
			break;
		}
		++p;
		op = p;
	}
	// check for the last cell if there is no trailing '\n'
	if ((cell < cells) && (op < len)) {
		InsetText * ti = loctab->GetCellInset(cell);
		LyXFont const font = ti->getLyXText(bv)->
			getFont(bv->buffer(), ti->paragraph(), 0);
		ti->setText(buf.substr(op, len-op), font);
	}

	return true;
}