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property.c

/*  property.c   june 2000
 * 
 *  ton roosendaal
 * $Id: property.c,v 1.3 2002/11/25 12:01:52 mein Exp $
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef WIN32
#include "BLI_winstuff.h"
#endif

#include "MEM_guardedalloc.h"

#include "DNA_property_types.h"
#include "DNA_object_types.h"
#include "DNA_listBase.h"


#include "BLI_blenlib.h"
#include "BKE_bad_level_calls.h"
#include "BKE_property.h"

void free_property(bProperty *prop)
{
      
      if(prop->poin && prop->poin != &prop->data) MEM_freeN(prop->poin);
      MEM_freeN(prop);
      
}

void free_properties(ListBase *lb)
{
      bProperty *prop;
      
      while( (prop= lb->first) ) {
            BLI_remlink(lb, prop);
            free_property(prop);
      }
}

bProperty *copy_property(bProperty *prop)
{
      bProperty *propn;
      
      propn= MEM_dupallocN(prop);
      if(prop->poin && prop->poin != &prop->data) {
            propn->poin= MEM_dupallocN(prop->poin);
      }
      else propn->poin= &propn->data;
      
      return propn;
}

void copy_properties(ListBase *lbn, ListBase *lbo)
{
      bProperty *prop, *propn;
      
      lbn->first= lbn->last= 0;
      prop= lbo->first;
      while(prop) {
            propn= copy_property(prop);
            BLI_addtail(lbn, propn);
            prop= prop->next;
      }
      
      
}

void init_property(bProperty *prop)
{
      /* also use when property changes type */
      
      if(prop->poin && prop->poin != &prop->data) MEM_freeN(prop->poin);
      prop->poin= 0;
      
      prop->otype= prop->type;
      prop->data= 0;
      
      switch(prop->type) {
      case PROP_BOOL:
            prop->poin= &prop->data;
            break;
      case PROP_INT:
            prop->poin= &prop->data;
            break;
      case PROP_FLOAT:
            prop->poin= &prop->data;
            break;
      case PROP_STRING:
            prop->poin= MEM_callocN(MAX_PROPSTRING, "property string");
            break;
      case PROP_TIME:
            prop->poin= &prop->data;
            break;
      }
}


bProperty *new_property(int type)
{
      bProperty *prop;

      prop= MEM_callocN(sizeof(bProperty), "property");
      prop->type= type;

      init_property(prop);
      
      strcpy(prop->name, "prop");

      return prop;
}

bProperty *get_property(Object *ob, char *name)
{
      bProperty *prop;
      
      prop= ob->prop.first;
      while(prop) {
            if( strcmp(prop->name, name)==0 ) return prop;
            prop= prop->next;
      }
      return NULL;
}

/* negative: prop is smaller
 * positive: prop is larger
 */
int compare_property(bProperty *prop, char *str)
{
//    extern int Gdfra;       /* sector.c */
      float fvalue, ftest;
      
      switch(prop->type) {
      case PROP_BOOL:
            if(strcasecmp(str, "true")==0) {
                  if(prop->data==1) return 0;
                  else return 1;
            }
            else if(strcasecmp(str, "false")==0) {
                  if(prop->data==0) return 0;
                  else return 1;
            }
            /* no break, do prop_int too! */
            
      case PROP_INT:
            return prop->data - atoi(str);

      case PROP_FLOAT:
      case PROP_TIME:
            // WARNING: untested for PROP_TIME
            // function isn't used currently
            fvalue= *((float *)&prop->data);
            ftest= (float)atof(str);
            if( fvalue > ftest) return 1;
            else if( fvalue < ftest) return -1;
            return 0;

      case PROP_STRING:
            return strcmp(prop->poin, str);
      }
      
      return 0;
}

void set_property(bProperty *prop, char *str)
{
//    extern int Gdfra;       /* sector.c */

      switch(prop->type) {
      case PROP_BOOL:
            if(strcasecmp(str, "true")==0) prop->data= 1;
            else if(strcasecmp(str, "false")==0) prop->data= 0;
            else prop->data= (atoi(str)!=0);
            break;
      case PROP_INT:
            prop->data= atoi(str);
            break;
      case PROP_FLOAT:
      case PROP_TIME:
            *((float *)&prop->data)= (float)atof(str);
            break;
      case PROP_STRING:
            strcpy(prop->poin, str);
            break;
      }
      
}

void add_property(bProperty *prop, char *str)
{
//    extern int Gdfra;       /* sector.c */

      switch(prop->type) {
      case PROP_BOOL:
      case PROP_INT:
            prop->data+= atoi(str);
            break;
      case PROP_FLOAT:
      case PROP_TIME:
            *((float *)&prop->data)+= (float)atof(str);
            break;
      case PROP_STRING:
            /* strcpy(prop->poin, str); */
            break;
      }
}

/* reads value of property, sets it in chars in str */
void set_property_valstr(bProperty *prop, char *str)
{
//    extern int Gdfra;       /* sector.c */

      if(str == NULL) return;

      switch(prop->type) {
      case PROP_BOOL:
      case PROP_INT:
            sprintf(str, "%d", prop->data);
            break;
      case PROP_FLOAT:
      case PROP_TIME:
            sprintf(str, "%f", *((float *)&prop->data));
            break;
      case PROP_STRING:
            BLI_strncpy(str, prop->poin, MAX_PROPSTRING);
            break;
      }
}

void cp_property(bProperty *prop1, bProperty *prop2)
{
      char str[128];

      set_property_valstr(prop2, str);

      set_property(prop1, str);
}

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