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/*
* (C) COPYRIGHT International Business Machines Corp. 1995
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of IBM not be
* used in advertising or publicity pertaining to distribution of the
* software without specific prior written permission.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT
* OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
* OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "dxf.h"
#include "entity.h"
static Table entity_table[] = {
{"POINT", E_POINT, snag_point, output_point},
{"CIRCLE", E_CIRCLE, snag_circle, output_circle},
{"ARC", E_ARC, snag_arc, output_arc},
{"SOLID", E_SOLID, snag_solid, output_solid},
{"TRACE", E_TRACE, snag_trace, output_trace},
{"TEXT", E_TEXT, snag_text, output_text},
{"SHAPE", E_SHAPE, snag_shape, output_shape},
{"BLOCK", E_BLOCK, snag_block, output_block},
{"ENDBLK", E_END_BLOCK, snag_end_block, output_end_block},
{"INSERT", E_INSERT, snag_insert, output_insert},
{"ATTDEF", E_ATTDEF, snag_attdef, NULL},
{"ATTRIB", E_ATTRIB, snag_attrib, NULL},
{"POLYLINE", E_POLYLINE, snag_polyline, output_polyline},
{"VERTEX", E_VERTEX, snag_vertex, output_vertex},
{"SEQEND", E_SEQ_END, snag_seqend, output_seqend},
{"3DLINE", E_LINE_3D, snag_line, output_3dline},
{"LINE", E_LINE, snag_line, output_line},
{"3DFACE", E_FACE_3D, snag_3dface, output_3dface},
{"DIMENSION", E_DIMENSION, NULL, NULL},
{"ENDSEC", E_ENDSEC, NULL, NULL},
{"VIEWPORT", E_VIEWPORT, NULL, NULL},
};
static nEntities = sizeof(entity_table)/sizeof(Table);
/*
* Given a string representing an entity type (read from the file)
* return a pointer to the function that will read that entity
* into memory. Make an assignment to the 'enitity' parameter also.
*/
PFVP get_snag_func(char *value,int *entity)
{
int i;
for (i=0;i<nEntities;i++) {
if (strstr(value, entity_table[i].name)) {
/* Only return exact matches */
if (strstr(entity_table[i].name, value)) {
*entity = entity_table[i].value;
return entity_table[i].snag_func;
}
}
}
*entity = -1;
return NULL;
}
/*
* Given a entity type, return the function that outputs that entity.
* This may mean creates a DX sub object, or (if debugging) prints
* the objects values.
*/
PFV get_output_func(int entity)
{
int i;
for (i=0;i<nEntities;i++) {
if (entity_table[i].value == entity) {
return entity_table[i].output_func;
}
}
return NULL;
}
/*
* Given an entity's type return it's name
*/
char *get_entity_name(int entity)
{
int i;
for (i=0;i<nEntities;i++) {
if (entity_table[i].value == entity) {
return &entity_table[i].name[0];
}
}
return NULL;
}
/*
* Make an assignment to an entities block pointer.
*/
void add_block_to_entity(Entity *e, Entity *block)
{
e->block = block;
}
/*
* Create a new entity and set all defaults
*/
Entity *create_new_entity(int type, void *data)
{
Entity *e = (Entity *)malloc(sizeof(Entity));
if (e) {
e->data = data;
e->type = type;
e->index = -1;
e->next = NULL;
e->block = NULL;
e->processed = FALSE;
} else {
fprintf(stderr,"malloc failed\n");
return NULL;
}
return (Entity *)e;
}
/*
* Add an item to the end of a list. The item must contain
* a next pointer and a type pointer in known locations.
* The item can contain any other type of data.
*/
int add_item_to_list(List *list, Entity *item)
{
if (!(item && list)) {
fprintf(stderr,"Implementation error\n");
exit(0);
}
if (list->first_item == NULL) {
/* First time through for this list */
list->first_item = item;
} else {
list->last_item->next = item;
}
list->last_item = item;
list->nItems++;
if (item->type > -1 && item->type < MAX_ENTITIES) {
list->histogram[item->type]++;
}
return (list->nItems-1);
}
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