86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2019 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup DNA
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*/
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#pragma once
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#include "DNA_vec_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Each control point that makes up the profile.
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* \note The flags use the same enum as Bezier curves, but they aren't guaranteed
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* to have identical functionality, and all types aren't implemented.
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*/
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typedef struct CurveProfilePoint {
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/** Location of the point, keep together. */
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float x, y;
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/** Flag selection state and others. */
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short flag;
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/** Flags for both handle's type (eBezTriple_Handle auto, vect, free, and aligned supported). */
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char h1, h2;
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/** Handle locations, keep together.
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* \note For now the two handle types are set to the same type in RNA. */
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float h1_loc[2];
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float h2_loc[2];
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char _pad[4];
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/** Runtime pointer to the point's profile for updating the curve with no direct reference. */
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struct CurveProfile *profile;
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} CurveProfilePoint;
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/** #CurveProfilePoint.flag */
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enum {
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PROF_SELECT = (1 << 0),
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PROF_H1_SELECT = (1 << 1),
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PROF_H2_SELECT = (1 << 2),
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};
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/** Defines a profile. */
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typedef struct CurveProfile {
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/** Number of user-added points that define the profile. */
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short path_len;
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/** Number of sampled points. */
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short segments_len;
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/** Preset to use when reset. */
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int preset;
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/** Sequence of points defining the shape of the curve. */
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CurveProfilePoint *path;
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/** Display and evaluation table at higher resolution for curves. */
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CurveProfilePoint *table;
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/** The positions of the sampled points. Used to display a preview of where they will be. */
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CurveProfilePoint *segments;
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/** Flag for mode states, sampling options, etc... */
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int flag;
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/** Used for keeping track how many times the widget is changed. */
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int changed_timestamp;
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/** Widget's current view, and clipping rect (is default rect too). */
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rctf view_rect, clip_rect;
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} CurveProfile;
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/** #CurveProfile.flag */
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enum {
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PROF_USE_CLIP = (1 << 0), /* Keep control points inside bounding rectangle. */
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/* PROF_SYMMETRY_MODE = (1 << 1), Unused for now. */
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PROF_SAMPLE_STRAIGHT_EDGES = (1 << 2), /* Sample extra points on straight edges. */
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PROF_SAMPLE_EVEN_LENGTHS = (1 << 3), /* Put segments evenly spaced along the path. */
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PROF_DIRTY_PRESET = (1 << 4), /* Marks when the dynamic preset has been changed. */
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};
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typedef enum eCurveProfilePresets {
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PROF_PRESET_LINE = 0, /* Default simple line between end points. */
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PROF_PRESET_SUPPORTS = 1, /* Support loops for a regular curved profile. */
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PROF_PRESET_CORNICE = 2, /* Molding type example. */
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PROF_PRESET_CROWN = 3, /* Second molding example. */
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PROF_PRESET_STEPS = 4, /* Dynamic number of steps defined by segments_len. */
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} eCurveProfilePresets;
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#ifdef __cplusplus
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}
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#endif
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