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#include "lwgeom_pg.h"
#include "liblwgeom.h"
#include <stdio.h>
#include <string.h>
char *lwcollection_summary(LWCOLLECTION *collection, int offset);
char *lwpoly_summary(LWPOLY *poly, int offset);
char *lwline_summary(LWLINE *line, int offset);
char *lwpoint_summary(LWPOINT *point, int offset);
char *
lwgeom_summary(LWGEOM *lwgeom, int offset)
{
char *result;
switch (TYPE_GETTYPE(lwgeom->type))
{
case POINTTYPE:
return lwpoint_summary((LWPOINT *)lwgeom, offset);
case LINETYPE:
return lwline_summary((LWLINE *)lwgeom, offset);
case POLYGONTYPE:
return lwpoly_summary((LWPOLY *)lwgeom, offset);
case MULTIPOINTTYPE:
case MULTILINETYPE:
case MULTIPOLYGONTYPE:
case COLLECTIONTYPE:
return lwcollection_summary((LWCOLLECTION *)lwgeom, offset);
default:
result = palloc(256);
sprintf(result, "Object is of unknown type: %d",
lwgeom->type);
return result;
}
return NULL;
}
/*
* Returns an alloced string containing summary for the LWGEOM object
*/
char *
lwpoint_summary(LWPOINT *point, int offset)
{
char *result;
char *pad="";
result = lwalloc(128+offset);
sprintf(result, "%*.s%s[%s]\n",
offset, pad, lwgeom_typename(TYPE_GETTYPE(point->type)),
lwgeom_typeflags(point->type));
return result;
}
char *
lwline_summary(LWLINE *line, int offset)
{
char *result;
char *pad="";
result = lwalloc(128+offset);
sprintf(result, "%*.s%s[%s] with %d points\n",
offset, pad, lwgeom_typename(TYPE_GETTYPE(line->type)),
lwgeom_typeflags(line->type),
line->points->npoints);
return result;
}
char *
lwcollection_summary(LWCOLLECTION *col, int offset)
{
size_t size = 128;
char *result;
char *tmp;
int i;
char *pad="";
LWDEBUG(2, "lwcollection_summary called");
result = (char *)lwalloc(size);
sprintf(result, "%*.s%s[%s] with %d elements\n",
offset, pad, lwgeom_typename(TYPE_GETTYPE(col->type)),
lwgeom_typeflags(col->type),
col->ngeoms);
for (i=0; i<col->ngeoms; i++)
{
tmp = lwgeom_summary(col->geoms[i], offset+2);
size += strlen(tmp)+1;
result = lwrealloc(result, size);
LWDEBUGF(4, "Reallocated %d bytes for result", size);
strcat(result, tmp);
lwfree(tmp);
}
LWDEBUG(3, "lwcollection_summary returning");
return result;
}
char *
lwpoly_summary(LWPOLY *poly, int offset)
{
char tmp[256];
size_t size = 64*(poly->nrings+1)+128;
char *result;
int i;
char *pad="";
LWDEBUG(2, "lwpoly_summary called");
result = lwalloc(size);
sprintf(result, "%*.s%s[%s] with %i rings\n",
offset, pad, lwgeom_typename(TYPE_GETTYPE(poly->type)),
lwgeom_typeflags(poly->type),
poly->nrings);
for (i=0; i<poly->nrings; i++)
{
sprintf(tmp,"%s ring %i has %i points\n",
pad, i, poly->rings[i]->npoints);
strcat(result,tmp);
}
LWDEBUG(3, "lwpoly_summary returning");
return result;
}
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