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Diffstat (limited to 'src/cairo_path_bounds.c')
| -rw-r--r-- | src/cairo_path_bounds.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/cairo_path_bounds.c b/src/cairo_path_bounds.c deleted file mode 100644 index 7c5772a82..000000000 --- a/src/cairo_path_bounds.c +++ /dev/null @@ -1,182 +0,0 @@ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2003 University of Southern California - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - * The Original Code is the cairo graphics library. - * - * The Initial Developer of the Original Code is University of Southern - * California. - * - * Contributor(s): - * Carl D. Worth <cworth@cworth.org> - */ - -#include "cairoint.h" - -typedef struct cairo_path_bounder { - int has_point; - - cairo_fixed_t min_x; - cairo_fixed_t min_y; - cairo_fixed_t max_x; - cairo_fixed_t max_y; -} cairo_path_bounder_t; - -static void -_cairo_path_bounder_init (cairo_path_bounder_t *bounder); - -static void -_cairo_path_bounder_fini (cairo_path_bounder_t *bounder); - -static cairo_status_t -_cairo_path_bounder_add_point (cairo_path_bounder_t *bounder, cairo_point_t *point); - -static cairo_status_t -_cairo_path_bounder_move_to (void *closure, cairo_point_t *point); - -static cairo_status_t -_cairo_path_bounder_line_to (void *closure, cairo_point_t *point); - -static cairo_status_t -_cairo_path_bounder_curve_to (void *closure, - cairo_point_t *b, - cairo_point_t *c, - cairo_point_t *d); - -static cairo_status_t -_cairo_path_bounder_close_path (void *closure); - -static void -_cairo_path_bounder_init (cairo_path_bounder_t *bounder) -{ - bounder->has_point = 0; -} - -static void -_cairo_path_bounder_fini (cairo_path_bounder_t *bounder) -{ - bounder->has_point = 0; -} - -static cairo_status_t -_cairo_path_bounder_add_point (cairo_path_bounder_t *bounder, cairo_point_t *point) -{ - if (bounder->has_point) { - if (point->x < bounder->min_x) - bounder->min_x = point->x; - - if (point->y < bounder->min_y) - bounder->min_y = point->y; - - if (point->x > bounder->max_x) - bounder->max_x = point->x; - - if (point->y > bounder->max_y) - bounder->max_y = point->y; - } else { - bounder->min_x = point->x; - bounder->min_y = point->y; - bounder->max_x = point->x; - bounder->max_y = point->y; - - bounder->has_point = 1; - } - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_path_bounder_move_to (void *closure, cairo_point_t *point) -{ - cairo_path_bounder_t *bounder = closure; - - _cairo_path_bounder_add_point (bounder, point); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_path_bounder_line_to (void *closure, cairo_point_t *point) -{ - cairo_path_bounder_t *bounder = closure; - - _cairo_path_bounder_add_point (bounder, point); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_path_bounder_curve_to (void *closure, - cairo_point_t *b, - cairo_point_t *c, - cairo_point_t *d) -{ - cairo_path_bounder_t *bounder = closure; - - _cairo_path_bounder_add_point (bounder, b); - _cairo_path_bounder_add_point (bounder, c); - _cairo_path_bounder_add_point (bounder, d); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_path_bounder_close_path (void *closure) -{ - return CAIRO_STATUS_SUCCESS; -} - -/* XXX: Perhaps this should compute a PixRegion rather than 4 doubles */ -cairo_status_t -_cairo_path_bounds (cairo_path_t *path, double *x1, double *y1, double *x2, double *y2) -{ - cairo_status_t status; - - cairo_path_bounder_t bounder; - - _cairo_path_bounder_init (&bounder); - - status = _cairo_path_interpret (path, CAIRO_DIRECTION_FORWARD, - _cairo_path_bounder_move_to, - _cairo_path_bounder_line_to, - _cairo_path_bounder_curve_to, - _cairo_path_bounder_close_path, - &bounder); - if (status) { - *x1 = *y1 = *x2 = *y2 = 0.0; - _cairo_path_bounder_fini (&bounder); - return status; - } - - *x1 = _cairo_fixed_to_double (bounder.min_x); - *y1 = _cairo_fixed_to_double (bounder.min_y); - *x2 = _cairo_fixed_to_double (bounder.max_x); - *y2 = _cairo_fixed_to_double (bounder.max_y); - - _cairo_path_bounder_fini (&bounder); - - return CAIRO_STATUS_SUCCESS; -} |