DNA_curveprofile_types.h

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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.
 *
 * Copyright (C) 2019 Blender Foundation.
 * All rights reserved.
 */
 
#pragma once
 
#include "DNA_vec_types.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define PROF_TABLE_MAX 512
#define PROF_RESOL 16
#define PROF_TABLE_LEN(n_pts) min_ii(PROF_TABLE_MAX, (((n_pts - 1)) * PROF_RESOL) + 1)
 
typedef struct CurveProfilePoint {
  float x, y;
  short flag;
  char h1, h2;
  float h1_loc[2];
  float h2_loc[2];
  char _pad[4];
  struct CurveProfile *profile;
} CurveProfilePoint;
 
enum {
  PROF_SELECT = (1 << 0),
  PROF_H1_SELECT = (1 << 1),
  PROF_H2_SELECT = (1 << 2),
};
 
typedef struct CurveProfile {
  short path_len;
  short segments_len;
  int preset;
  CurveProfilePoint *path;
  CurveProfilePoint *table;
  CurveProfilePoint *segments;
  int flag;
  int changed_timestamp;
  rctf view_rect, clip_rect;
} CurveProfile;
 
enum {
  PROF_USE_CLIP = (1 << 0), /* Keep control points inside bounding rectangle. */
  /* PROF_SYMMETRY_MODE = (1 << 1),         Unused for now. */
  PROF_SAMPLE_STRAIGHT_EDGES = (1 << 2), /* Sample extra points on straight edges. */
  PROF_SAMPLE_EVEN_LENGTHS = (1 << 3),   /* Put segments evenly spaced along the path. */
  PROF_DIRTY_PRESET = (1 << 4),          /* Marks when the dynamic preset has been changed. */
};
 
typedef enum eCurveProfilePresets {
  PROF_PRESET_LINE = 0,     /* Default simple line between end points. */
  PROF_PRESET_SUPPORTS = 1, /* Support loops for a regular curved profile. */
  PROF_PRESET_CORNICE = 2,  /* Molding type example. */
  PROF_PRESET_CROWN = 3,    /* Second molding example. */
  PROF_PRESET_STEPS = 4,    /* Dynamic number of steps defined by segments_len. */
} eCurveProfilePresets;
 
#ifdef __cplusplus
}
#endif