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author | Carl Worth <cworth@cworth.org> | 2006-07-14 12:45:48 -0700 |
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committer | Carl Worth <cworth@cworth.org> | 2006-07-14 14:40:47 -0700 |
commit | c70edff0842bc6f7238e17a5fe92dddceec283d3 (patch) | |
tree | 51d461350487970be0065fc7861af078d24f1fd5 /test/font-matrix-translation.c | |
parent | b390e2c45632a4974b85a6a5ea414e249adb62a3 (diff) | |
download | cairo-c70edff0842bc6f7238e17a5fe92dddceec283d3.tar.gz |
Add font-matrix-translation test case.
Diffstat (limited to 'test/font-matrix-translation.c')
-rw-r--r-- | test/font-matrix-translation.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/test/font-matrix-translation.c b/test/font-matrix-translation.c new file mode 100644 index 000000000..dbdeb8731 --- /dev/null +++ b/test/font-matrix-translation.c @@ -0,0 +1,113 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * 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 + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org> + */ + +#include "cairo-test.h" + +#define TEXT_SIZE 12 +#define PAD 4 +#define TEXT "text" + +static cairo_test_draw_function_t draw; + +cairo_test_t test = { + "font-matrix-translation", + "Test that translation in a font matrix can be used to offset a string", + 38, 34, + draw +}; + +static void +box_text (cairo_t *cr, const char *utf8, double x, double y) +{ + double line_width; + cairo_text_extents_t extents; + + cairo_save (cr); + + cairo_text_extents (cr, utf8, &extents); + line_width = cairo_get_line_width (cr); + cairo_rectangle (cr, + x + extents.x_bearing - line_width / 2, + y + extents.y_bearing - line_width / 2, + extents.width + line_width, + extents.height + line_width); + cairo_stroke (cr); + + cairo_move_to (cr, x, y); + cairo_show_text (cr, utf8); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_font_options_t *font_options; + cairo_text_extents_t extents; + cairo_matrix_t matrix; + + cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ + cairo_paint (cr); + + cairo_select_font_face (cr, "Bitstream Vera Sans", + CAIRO_FONT_SLANT_NORMAL, + CAIRO_FONT_WEIGHT_NORMAL); + cairo_set_font_size (cr, TEXT_SIZE); + + font_options = cairo_font_options_create (); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_GRAY); + + cairo_set_font_options (cr, font_options); + cairo_font_options_destroy (font_options); + + cairo_translate (cr, PAD, PAD); + cairo_set_line_width (cr, 1.0); + + cairo_text_extents (cr, TEXT, &extents); + + /* Draw text and bounding box */ + cairo_set_source_rgb (cr, 0, 0, 0); /* black */ + box_text (cr, TEXT, 0, - extents.y_bearing); + + /* Then draw again with the same coordinates, but with a font + * matrix to position the text below and shifted a bit to the + * right. */ + cairo_matrix_init_translate (&matrix, TEXT_SIZE / 2, TEXT_SIZE + PAD); + cairo_matrix_scale (&matrix, TEXT_SIZE, TEXT_SIZE); + cairo_set_font_matrix (cr, &matrix); + + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + box_text (cr, TEXT, 0, - extents.y_bearing); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |