gschem/src/s_stretch.c

   1 /* gEDA - GPL Electronic Design Automation
   2  * libgeda - gEDA's library
   3  * Copyright (C) 1998-2010 Ales Hvezda
   4  * Copyright (C) 1998-2019 gEDA Contributors (see ChangeLog for details)
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 #include <config.h>
  21
  22 #include <stdio.h>
  23
  24 #include "gschem.h"
  25
  26
  27 /*! \todo Finish function documentation!!!
  28  *  \brief
  29  *  \par Function Description
  30  *
  31  */
  32 GList *s_stretch_add (GList *list, OBJECT *object, int whichone)
  33 {
  34   GList *s_iter;
  35   STRETCH *s_new;
  36
  37   /* Check if the object is already in the stretch list */
  38   for (s_iter = list; s_iter != NULL; s_iter = g_list_next (s_iter)) {
  39     STRETCH *s_current = s_iter->data;
  40     if (s_current->object->sid == object->sid) {
  41       return list;
  42     }
  43   }
  44
  45   s_new = g_malloc (sizeof (STRETCH));
  46   s_new->object = object;
  47   s_new->whichone = whichone;
  48
  49   return g_list_append (list, s_new);
  50 }
  51
  52
  53 /*! \brief Test if a STRETCH structure points at a given OBJECT
  54  *
  55  *  \brief
  56  *  \par Function Description
  57  *  Compares if (STRETCH *)a->object == (OBJECT *)b
  58  *
  59  * \param [in] a  The STRETCH structure
  60  * \param [in] b  The OBJECT to test for
  61  * \returns 0 if STRETCH *a points to OBJECT *b, otherwise 1.
  62  */
  63 static gint find_object (gconstpointer a, gconstpointer b)
  64 {
  65   return (((STRETCH *)a)->object == (OBJECT *)b) ? 0 : 1;
  66 }
  67
  68
  69 /*! \todo Finish function documentation!!!
  70  *  \brief
  71  *  \par Function Description
  72  *
  73  */
  74 GList *s_stretch_remove (GList *list, OBJECT *object)
  75 {
  76   GList *item;
  77
  78   g_return_val_if_fail (object != NULL, list);
  79
  80   item = g_list_find_custom (list, object, find_object);
  81   g_free (item->data);
  82
  83   return g_list_delete_link (list, item);
  84 }
  85
  86 /*! \todo Finish function documentation!!!
  87  *  \brief
  88  *  \par Function Description
  89  *
  90  */
  91 void s_stretch_destroy_all (GList *list)
  92 {
  93   g_list_foreach (list, (GFunc)g_free, NULL);
  94   g_list_free (list);
  95 }