m_bounds.c

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/* gEDA - GPL Electronic Design Automation
 * libgeda - gEDA's library
 * Copyright (C) 1998-2010 Ales Hvezda
 * Copyright (C) 1998-2010 gEDA Contributors (see ChangeLog for details)
 *
 * 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.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
#include <config.h>
#include <libgeda_priv.h>

void m_bounds_init(BOUNDS *bounds)
{
  bounds->min_x = G_MAXINT;
  bounds->min_y = G_MAXINT;
  bounds->max_x = G_MININT;
  bounds->max_y = G_MININT;
}

void m_bounds_of_points(BOUNDS *bounds, sPOINT points[], gint count)
{
  gint index;

  m_bounds_init(bounds);

  for (index=0; index<count; index++) {
    gint x = points[index].x;
    gint y = points[index].y;

    if (x < bounds->min_x) {
      bounds->min_x = x;
    }

    if (y < bounds->min_y) {
      bounds->min_y = y;
    }

    if (x > bounds->max_x) {
      bounds->max_x = x;
    }

    if (y > bounds->max_y) {
      bounds->max_y = y;
    }
  }
}