diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/rectilinear-stroke.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/rectilinear-stroke.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/rectilinear-stroke.c b/libs/cairo-1.16.0/test/rectilinear-stroke.c new file mode 100644 index 0000000..e05ff8c --- /dev/null +++ b/libs/cairo-1.16.0/test/rectilinear-stroke.c @@ -0,0 +1,139 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Carl D. Worth <cworth@cworth.org> + */ + +#include "cairo-test.h" + +#define SIZE 25 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* Paint background white, then draw in black. */ + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ + + cairo_set_line_width (cr, 1.0); + cairo_translate (cr, 1, 1); + + /* Draw everything first with square caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 10.5, 4.5); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 6.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 0.5, 6.5); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 2.5); + cairo_rel_line_to (cr, 0.0, -2.0); + cairo_rel_line_to (cr, 2.0, 0.0); + + cairo_move_to (cr, 8.5, 0.5); + cairo_rel_line_to (cr, 2.0, 0.0); + cairo_rel_line_to (cr, 0.0, 2.0); + + cairo_move_to (cr, 10.5, 8.5); + cairo_rel_line_to (cr, 0.0, 2.0); + cairo_rel_line_to (cr, -2.0, 0.0); + + cairo_move_to (cr, 2.5, 10.5); + cairo_rel_line_to (cr, -2.0, 0.0); + cairo_rel_line_to (cr, 0.0, -2.0); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + + cairo_stroke (cr); + + cairo_translate (cr, 12, 0); + + /* Now draw the same results, but with butt caps. */ + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + /* Draw horizontal and vertical segments, each in both + * directions. */ + cairo_move_to (cr, 4.0, 0.5); + cairo_rel_line_to (cr, 3.0, 0.0); + + cairo_move_to (cr, 10.5, 4.0); + cairo_rel_line_to (cr, 0.0, 3.0); + + cairo_move_to (cr, 7.0, 10.5); + cairo_rel_line_to (cr, -3.0, 0.0); + + cairo_move_to (cr, 0.5, 7.0); + cairo_rel_line_to (cr, 0.0, -3.0); + + /* Draw right angle turns in four directions. */ + cairo_move_to (cr, 0.5, 3.0); + cairo_rel_line_to (cr, 0.0, -2.5); + cairo_rel_line_to (cr, 2.5, 0.0); + + cairo_move_to (cr, 8.0, 0.5); + cairo_rel_line_to (cr, 2.5, 0.0); + cairo_rel_line_to (cr, 0.0, 2.5); + + cairo_move_to (cr, 10.5, 8.0); + cairo_rel_line_to (cr, 0.0, 2.5); + cairo_rel_line_to (cr, -2.5, 0.0); + + cairo_move_to (cr, 3.0, 10.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, 0.0, -2.5); + + /* Draw a closed-path rectangle */ + cairo_rectangle (cr, 0.5, 12.5, 10.0, 10.0); + + /* Draw a path that is rectilinear initially, but not completely */ + /* We draw this out of the target window. The bug that caused this + * addition was leaks if part of the path was rectilinear but not + * completely */ + cairo_move_to (cr, 3.0, 30.5); + cairo_rel_line_to (cr, -2.5, 0.0); + cairo_rel_line_to (cr, +2.5, +2.5); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (rectilinear_stroke, + "Test rectilinear stroke operations (covering only whole pixels)", + "stroke", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) + |