libmypaint 1.6.1
Loading...
Searching...
No Matches
/builddir/build/BUILD/libmypaint-1.6.1/mypaint-symmetry.h
Go to the documentation of this file.
1#ifndef MYPAINTSYMMETRY_H
2#define MYPAINTSYMMETRY_H
3/* libmypaint - The MyPaint Brush Library
4 * Copyright (C) 2017-2019 The MyPaint Team
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include "mypaint-matrix.h"
20#include "mypaint-glib-compat.h"
21
27typedef enum {
53
54
65typedef struct {
73 float center_x;
77 float center_y;
81 float angle;
86 float num_lines;
88
99typedef struct {
130
137
138
150
151
158
168 MyPaintSymmetryData* data, gboolean active, float center_x, float center_y,
169 float symmetry_angle, MyPaintSymmetryType symmetry_type, int rot_symmetry_lines);
170
171#endif
gint gboolean
Definition mypaint-glib-compat.h:25
MyPaintSymmetryType
Enumeration of different kinds of symmetry.
Definition mypaint-symmetry.h:27
@ MYPAINT_SYMMETRY_TYPE_SNOWFLAKE
rotational symmetry and its reflection
Definition mypaint-symmetry.h:47
@ MYPAINT_SYMMETRY_TYPES_COUNT
number of available symmetry types (only use to enumerate)
Definition mypaint-symmetry.h:51
@ MYPAINT_SYMMETRY_TYPE_ROTATIONAL
rotational symmetry
Definition mypaint-symmetry.h:43
@ MYPAINT_SYMMETRY_TYPE_VERTICAL
reflection across the (vertical) y-axis
Definition mypaint-symmetry.h:31
@ MYPAINT_SYMMETRY_TYPE_HORIZONTAL
reflection across the (horizontal) x-axis
Definition mypaint-symmetry.h:35
@ MYPAINT_SYMMETRY_TYPE_VERTHORZ
reflection across both the x-axis and the y-axis
Definition mypaint-symmetry.h:39
Contains data used for symmetry calculations.
Definition mypaint-symmetry.h:99
void mypaint_update_symmetry_state(MyPaintSymmetryData *const symmetry_data)
If necessary, recalculate symmetry_matrices.
MyPaintSymmetryState state_pending
The pending symmetry state.
Definition mypaint-symmetry.h:110
void mypaint_symmetry_data_destroy(MyPaintSymmetryData *)
Destroy resources used by the data struct, and the struct itself.
void mypaint_symmetry_set_pending(MyPaintSymmetryData *data, gboolean active, float center_x, float center_y, float symmetry_angle, MyPaintSymmetryType symmetry_type, int rot_symmetry_lines)
Update state_pending and active and set pending_changes to TRUE.
int num_symmetry_matrices
The size of symmetry_matrices, depends on type and num_lines of state_current.
Definition mypaint-symmetry.h:124
MyPaintTransform * symmetry_matrices
The matrices used for the actual symmetry calculations.
Definition mypaint-symmetry.h:128
gboolean active
Whether symmetry is used or not.
Definition mypaint-symmetry.h:120
MyPaintSymmetryState state_current
The current symmetry state.
Definition mypaint-symmetry.h:104
gboolean pending_changes
Flag used to check if state_pending needs to be compared against state_current (does not necessarily ...
Definition mypaint-symmetry.h:116
MyPaintSymmetryData mypaint_default_symmetry_data()
Create a default symmetry data instance.
Contains the basis for symmetry calculations.
Definition mypaint-symmetry.h:65
MyPaintSymmetryType type
The type of symmetry to use.
Definition mypaint-symmetry.h:69
float center_x
The x coordinate of the symmetry center.
Definition mypaint-symmetry.h:73
float angle
The angle of the symmetry, in radians.
Definition mypaint-symmetry.h:81
float num_lines
The number of symmetry lines to use, only relevant when type is one of MYPAINT_SYMMETRY_TYPE_ROTATION...
Definition mypaint-symmetry.h:86
float center_y
The y coordinate of the symmetry center.
Definition mypaint-symmetry.h:77
3x3 matrix of floats, row-major order.
Definition mypaint-matrix.h:29