diff options
author | Carl Worth <cworth@cworth.org> | 2007-02-23 07:12:03 +0100 |
---|---|---|
committer | Carl Worth <cworth@cworth.org> | 2007-03-01 13:16:38 -0800 |
commit | d65455ed3800f9ec3115bbed96a5b2328ee60b57 (patch) | |
tree | 6350d0eb982a58e307ab91e12aee1335027f05c4 /test | |
parent | 1bc1f8ef46a27aa21f8d29b39e645ee5a0e95cda (diff) |
Add radial-gradient test case
Embarrassingly enough, the test suite previously never called
into cairo_pattern_create_radial at all. Unsurprisingly, this
has led to bugs creeping into the radial gradient implementation.
Diffstat (limited to 'test')
-rw-r--r-- | test/.gitignore | 1 | ||||
-rw-r--r-- | test/Makefile.am | 1 | ||||
-rw-r--r-- | test/radial-gradient-ref.png | bin | 0 -> 91159 bytes | |||
-rw-r--r-- | test/radial-gradient.c | 110 |
4 files changed, 112 insertions, 0 deletions
diff --git a/test/.gitignore b/test/.gitignore index 3bac9737..0b5ae987 100644 --- a/test/.gitignore +++ b/test/.gitignore @@ -96,6 +96,7 @@ png-flatten ps-features ps-features.ps push-group +radial-gradient random-intersections svg2png svg-clip diff --git a/test/Makefile.am b/test/Makefile.am index 3382cf4f..9462e30c 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -71,6 +71,7 @@ paint-with-alpha \ pattern-get-type \ pattern-getters \ pixman-rotate \ +radial-gradient \ random-intersections \ rectangle-rounding-error \ rectilinear-stroke \ diff --git a/test/radial-gradient-ref.png b/test/radial-gradient-ref.png Binary files differnew file mode 100644 index 00000000..ab108581 --- /dev/null +++ b/test/radial-gradient-ref.png diff --git a/test/radial-gradient.c b/test/radial-gradient.c new file mode 100644 index 00000000..1207943a --- /dev/null +++ b/test/radial-gradient.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2005, 2007 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" + +static cairo_test_draw_function_t draw; + +#define NUM_GRADIENTS 4 +#define NUM_EXTEND 4 +#define SIZE 60 +#define WIDTH (SIZE * NUM_GRADIENTS) +#define HEIGHT (SIZE * NUM_EXTEND) + +cairo_test_t test = { + "radial-gradient", + "Simple test of radial gradients", + WIDTH, HEIGHT, + draw +}; + +static void +draw_gradient (cairo_t *cr, + int x, + int y, + int size, + double offset, + double inner_radius, + cairo_extend_t extend) +{ + cairo_pattern_t *pattern; + + cairo_save (cr); + + pattern = cairo_pattern_create_radial (x + size/2.0 + offset, + y + size/2.0 + offset, inner_radius, + x + size/2.0, + y + size/2.0, size/3.0); + cairo_pattern_add_color_stop_rgba (pattern, 0.0, + 1.0, 0.0, 0.0, 1.0); + cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), + 0.0, 1.0, 0.0, 0.0); + cairo_pattern_add_color_stop_rgba (pattern, 1.0, + 0.0, 0.0, 1.0, 0.5); + cairo_pattern_set_extend (pattern, extend); + + cairo_rectangle (cr, x, y, size, size); + cairo_clip (cr); + + cairo_set_source (cr, pattern); + cairo_paint (cr); + + cairo_pattern_destroy (pattern); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j; + double inner_radius, offset; + cairo_extend_t extend[NUM_EXTEND] = { + CAIRO_EXTEND_NONE, + CAIRO_EXTEND_REPEAT, + CAIRO_EXTEND_REFLECT, + CAIRO_EXTEND_PAD + }; + + cairo_test_paint_checkered (cr); + + for (j = 0; j < NUM_EXTEND; j++) { + for (i = 0; i < NUM_GRADIENTS; i++) { + offset = i % 2 ? SIZE / 12.0 : 0.0; + inner_radius = i >= NUM_EXTEND / 2 ? SIZE / 6.0 : 0.0; + draw_gradient (cr, i * SIZE, j * SIZE, SIZE, + offset, inner_radius, extend[j]); + } + } + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |