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/************************************************************************/
/* */
/* Book keeping on TableRectangle's */
/* */
/* The colspan and rowspan fields are managed in a halfhearted way: */
/* You need the table to do a correct administration. So their value */
/* is the responsibility of the caller. */
/* */
/************************************************************************/
# include "tedConfig.h"
# include <stdlib.h>
# include <string.h>
# include <stdio.h>
# include <appDebugon.h>
# include "docBuf.h"
/************************************************************************/
/* */
/* Initialise a Table Rectangle. */
/* */
/************************************************************************/
void docInitTableRectangle( TableRectangle * tr )
{
tr->trCol0= -1;
tr->trCol1= -1;
tr->trCol11= -1;
tr->trRow00= -1;
tr->trRow0= -1;
tr->trRow1= -1;
tr->trRow11= -1;
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
return;
}
/************************************************************************/
/* */
/* Intersect two TableRectangles. */
/* */
/************************************************************************/
int docIntersectTableRectangle( TableRectangle * tr,
const TableRectangle * tr1,
const TableRectangle * tr2 )
{
TableRectangle res= *tr1;
if ( tr1->trRow00 != tr2->trRow00 )
{ LLDEB(tr1->trRow00,tr2->trRow00); return 0; }
if ( tr1->trRow11 != tr2->trRow11 )
{ LLDEB(tr1->trRow11,tr2->trRow11); return 0; }
if ( tr1->trCol11 != tr2->trCol11 )
{ LLDEB(tr1->trCol11,tr2->trCol11); return 0; }
if ( tr1->trCol1 < tr2->trCol0 )
{ return 0; }
if ( tr2->trCol1 < tr1->trCol0 )
{ return 0; }
if ( tr1->trRow1 < tr2->trRow0 )
{ return 0; }
if ( tr2->trRow1 < tr1->trRow0 )
{ return 0; }
if ( ! tr )
{ return 1; }
if ( tr1->trCol0 < tr2->trCol0 )
{ res.trCol0= tr2->trCol0; }
else{ res.trCol0= tr1->trCol0; }
if ( tr1->trRow0 < tr2->trRow0 )
{ res.trRow0= tr2->trRow0; }
else{ res.trRow0= tr1->trRow0; }
if ( tr1->trCol1 < tr2->trCol1 )
{ res.trCol1= tr1->trCol1; }
else{ res.trCol1= tr2->trCol1; }
if ( tr1->trRow1 < tr2->trRow1 )
{ res.trRow1= tr1->trRow1; }
else{ res.trRow1= tr2->trRow1; }
res.trCellRowspan= 0;
res.trCellColspan= 0;
*tr= res; return 1;
}
void docExpandTableRectangleToWholeTable( TableRectangle * tr )
{
tr->trRow0= tr->trRow00;
tr->trRow1= tr->trRow11;
tr->trCol0= 0;
tr->trCol1= tr->trCol11;
if ( tr->trRow0 != tr->trRow1 ||
tr->trCol0 != tr->trCol1 )
{
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
}
return;
}
void docExpandTableRectangleToWholeRows( TableRectangle * tr )
{
tr->trCol0= 0;
tr->trCol1= tr->trCol11;
if ( tr->trRow0 != tr->trRow1 ||
tr->trCol0 != tr->trCol1 )
{
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
}
return;
}
void docExpandTableRectangleToWholeColumns( TableRectangle * tr )
{
tr->trRow0= tr->trRow00;
tr->trRow1= tr->trRow11;
if ( tr->trRow0 != tr->trRow1 ||
tr->trCol0 != tr->trCol1 )
{
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
}
return;
}
int docShiftTableRectangleByRows( TableRectangle * tr,
int rows )
{
TableRectangle trShifted;
TableRectangle trTable;
trShifted= *tr;
trTable= *tr;
trShifted.trRow0 += rows;
trShifted.trRow1 += rows;
docExpandTableRectangleToWholeTable( &trTable );
if ( ! docIntersectTableRectangle( &trShifted, &trShifted, &trTable ) )
{ return -1; }
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
*tr= trShifted; return 0;
}
int docShiftTableRectangleByColumns( TableRectangle * tr,
int columns )
{
TableRectangle trShifted;
TableRectangle trTable;
trShifted= *tr;
trTable= *tr;
trShifted.trCol0 += columns;
trShifted.trCol1 += columns;
docExpandTableRectangleToWholeTable( &trTable );
if ( ! docIntersectTableRectangle( &trShifted, &trShifted, &trTable ) )
{ return -1; }
tr->trCellRowspan= 0;
tr->trCellColspan= 0;
*tr= trShifted; return 0;
}
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