node_composite_scale.c

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/*
 * 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.
 *
 * The Original Code is Copyright (C) 2006 Blender Foundation.
 * All rights reserved.
 */
 
#include "node_composite_util.h"
 
/* **************** Scale  ******************** */
 
static bNodeSocketTemplate cmp_node_scale_in[] = {
    {SOCK_RGBA, N_("Image"), 1.0f, 1.0f, 1.0f, 1.0f},
    {SOCK_FLOAT, N_("X"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX, PROP_NONE},
    {SOCK_FLOAT, N_("Y"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX, PROP_NONE},
    {-1, ""}};
static bNodeSocketTemplate cmp_node_scale_out[] = {{SOCK_RGBA, N_("Image")}, {-1, ""}};
 
static void node_composite_update_scale(bNodeTree *UNUSED(ntree), bNode *node)
{
  bNodeSocket *sock;
  bool use_xy_scale = ELEM(node->custom1, CMP_SCALE_RELATIVE, CMP_SCALE_ABSOLUTE);
 
  /* Only show X/Y scale factor inputs for modes using them! */
  for (sock = node->inputs.first; sock; sock = sock->next) {
    if (STR_ELEM(sock->name, "X", "Y")) {
      if (use_xy_scale) {
        sock->flag &= ~SOCK_UNAVAIL;
      }
      else {
        sock->flag |= SOCK_UNAVAIL;
      }
    }
  }
}
 
void register_node_type_cmp_scale(void)
{
  static bNodeType ntype;
 
  cmp_node_type_base(&ntype, CMP_NODE_SCALE, "Scale", NODE_CLASS_DISTORT, 0);
  node_type_socket_templates(&ntype, cmp_node_scale_in, cmp_node_scale_out);
  node_type_update(&ntype, node_composite_update_scale);
 
  nodeRegisterType(&ntype);
}