gimp/app/core/gimp-transform-utils.h

117 lines
7.5 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_TRANSFORM_UTILS_H__
#define __GIMP_TRANSFORM_UTILS_H__
void gimp_transform_get_rotate_center (gint x,
gint y,
gint width,
gint height,
gboolean auto_center,
gdouble *center_x,
gdouble *center_y);
void gimp_transform_get_flip_axis (gint x,
gint y,
gint width,
gint height,
GimpOrientationType flip_type,
gboolean auto_center,
gdouble *axis);
void gimp_transform_matrix_flip (GimpMatrix3 *matrix,
GimpOrientationType flip_type,
gdouble axis);
void gimp_transform_matrix_flip_free (GimpMatrix3 *matrix,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2);
void gimp_transform_matrix_rotate (GimpMatrix3 *matrix,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y);
void gimp_transform_matrix_rotate_rect (GimpMatrix3 *matrix,
gint x,
gint y,
gint width,
gint height,
gdouble angle);
void gimp_transform_matrix_rotate_center (GimpMatrix3 *matrix,
gdouble center_x,
gdouble center_y,
gdouble angle);
void gimp_transform_matrix_scale (GimpMatrix3 *matrix,
gint x,
gint y,
gint width,
gint height,
gdouble t_x,
gdouble t_y,
gdouble t_width,
gdouble t_height);
void gimp_transform_matrix_shear (GimpMatrix3 *matrix,
gint x,
gint y,
gint width,
gint height,
GimpOrientationType orientation,
gdouble amount);
void gimp_transform_matrix_perspective (GimpMatrix3 *matrix,
gint x,
gint y,
gint width,
gint height,
gdouble t_x1,
gdouble t_y1,
gdouble t_x2,
gdouble t_y2,
gdouble t_x3,
gdouble t_y3,
gdouble t_x4,
gdouble t_y4);
void gimp_transform_matrix_handles (GimpMatrix3 *matrix,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gdouble x3,
gdouble y3,
gdouble x4,
gdouble y4,
gdouble t_x1,
gdouble t_y1,
gdouble t_x2,
gdouble t_y2,
gdouble t_x3,
gdouble t_y3,
gdouble t_x4,
gdouble t_y4);
gboolean gimp_transform_polygon_is_convex (gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gdouble x3,
gdouble y3,
gdouble x4,
gdouble y4);
#endif /* __GIMP_TRANSFORM_UTILS_H__ */