diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/dash-zero-length.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/dash-zero-length.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/dash-zero-length.c b/libs/cairo-1.16.0/test/dash-zero-length.c new file mode 100644 index 0000000..5ab944b --- /dev/null +++ b/libs/cairo-1.16.0/test/dash-zero-length.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2006 Jeff Muizelaar + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Jeff Muizelaar. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Jeff Muizelaar. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Jeff Muizelaar <jeff@infidigm.net> + */ + +#include "cairo-test.h" + +#define IMAGE_WIDTH 19 +#define IMAGE_HEIGHT 61 + +/* A test of the two extremes of dashing: a solid line + * and an invisible one. Also test that capping works + * on invisible lines. + */ + +static void +draw_dash (cairo_t *cr, double *dash, int num_dashes) +{ + cairo_set_dash (cr, dash, num_dashes, 0.0); + cairo_move_to (cr, 1, 2); + cairo_line_to (cr, 18, 2); + cairo_stroke (cr); + cairo_translate (cr, 0, 3); +} +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + static double solid_line[] = { 4, 0 }; + static double invisible_line[] = { 0, 4 }; + static double dotted_line[] = { 0, 6 }; + static double zero_1_of_3[] = { 0, 2, 3 }; + static double zero_2_of_3[] = { 1, 0, 3 }; + static double zero_3_of_3[] = { 1, 2, 0 }; + static double zero_1_of_4[] = { 0, 2, 3, 4 }; + static double zero_2_of_4[] = { 1, 0, 3, 4 }; + static double zero_3_of_4[] = { 1, 2, 0, 4 }; + static double zero_4_of_4[] = { 1, 2, 3, 0 }; + static double zero_1_2_of_4[] = { 0, 0, 3, 4 }; + static double zero_1_3_of_4[] = { 0, 2, 0, 4 }; +/* Clearly it would be nice to draw this one as well, but it seems to trigger a bug in ghostscript. */ +#if BUG_FIXED_IN_GHOSTSCRIPT + static double zero_1_4_of_4[] = { 0, 2, 3, 0 }; +#endif + static double zero_2_3_of_4[] = { 1, 0, 0, 4 }; + static double zero_2_4_of_4[] = { 1, 0, 3, 0 }; + static double zero_3_4_of_4[] = { 1, 2, 0, 0 }; + static double zero_1_2_3_of_4[] = { 0, 0, 0, 4 }; + static double zero_1_2_4_of_4[] = { 0, 0, 3, 0 }; + static double zero_1_3_4_of_4[] = { 0, 2, 0, 0 }; + static double zero_2_3_4_of_4[] = { 1, 0, 0, 0 }; + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 2); + + draw_dash (cr, solid_line, 2); + draw_dash (cr, invisible_line, 2); + + cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); + draw_dash (cr, dotted_line, 2); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); + + draw_dash (cr, zero_1_of_3, 3); + draw_dash (cr, zero_2_of_3, 3); + draw_dash (cr, zero_3_of_3, 3); + draw_dash (cr, zero_1_of_4, 4); + draw_dash (cr, zero_2_of_4, 4); + draw_dash (cr, zero_3_of_4, 4); + draw_dash (cr, zero_4_of_4, 4); + draw_dash (cr, zero_1_2_of_4, 4); + draw_dash (cr, zero_1_3_of_4, 4); +#if BUG_FIXED_IN_GHOSTSCRIPT + draw_dash (cr, zero_1_4_of_4, 4); +#endif + draw_dash (cr, zero_2_3_of_4, 4); + draw_dash (cr, zero_2_4_of_4, 4); + draw_dash (cr, zero_3_4_of_4, 4); + draw_dash (cr, zero_1_2_3_of_4, 4); + draw_dash (cr, zero_1_2_4_of_4, 4); + draw_dash (cr, zero_1_3_4_of_4, 4); + draw_dash (cr, zero_2_3_4_of_4, 4); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (dash_zero_length, + "Tests cairo_set_dash with zero length", + "dash, stroke", /* keywords */ + NULL, /* requirements */ + IMAGE_WIDTH, IMAGE_HEIGHT, + NULL, draw) |