diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/bitmap-font.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/bitmap-font.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/bitmap-font.c b/libs/cairo-1.16.0/test/bitmap-font.c new file mode 100644 index 0000000..525bafb --- /dev/null +++ b/libs/cairo-1.16.0/test/bitmap-font.c @@ -0,0 +1,220 @@ +/* + * Copyright © 2005 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" + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> + +#include <cairo-ft.h> +#include <fontconfig/fontconfig.h> +#include <fontconfig/fcfreetype.h> + +#define FONT "6x13.pcf" +#define TEXT_SIZE 13 + +static cairo_bool_t +font_extents_equal (const cairo_font_extents_t *A, + const cairo_font_extents_t *B) +{ + return + CAIRO_TEST_DOUBLE_EQUALS (A->ascent, B->ascent) && + CAIRO_TEST_DOUBLE_EQUALS (A->descent, B->descent) && + CAIRO_TEST_DOUBLE_EQUALS (A->height, B->height) && + CAIRO_TEST_DOUBLE_EQUALS (A->max_x_advance, B->max_x_advance) && + CAIRO_TEST_DOUBLE_EQUALS (A->max_y_advance, B->max_y_advance); +} + +static cairo_test_status_t +check_font_extents (const cairo_test_context_t *ctx, cairo_t *cr, const char *comment) +{ + cairo_font_extents_t font_extents, ref_font_extents = {11, 2, 13, 6, 0}; + cairo_status_t status; + + memset (&font_extents, 0xff, sizeof (cairo_font_extents_t)); + cairo_font_extents (cr, &font_extents); + + status = cairo_status (cr); + if (status) + return cairo_test_status_from_status (ctx, status); + + if (! font_extents_equal (&font_extents, &ref_font_extents)) { + cairo_test_log (ctx, "Error: %s: cairo_font_extents(); extents (%g, %g, %g, %g, %g)\n", + comment, + font_extents.ascent, font_extents.descent, + font_extents.height, + font_extents.max_x_advance, font_extents.max_y_advance); + return CAIRO_TEST_FAILURE; + } + + return CAIRO_TEST_SUCCESS; +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + const cairo_test_context_t *ctx = cairo_test_get_context (cr); + FcPattern *pattern; + cairo_font_face_t *font_face; + cairo_font_extents_t font_extents; + cairo_font_options_t *font_options; + cairo_status_t status; + char *filename; + int face_count; + struct stat stat_buf; + + xasprintf (&filename, "%s/%s", ctx->srcdir, FONT); + + if (stat (filename, &stat_buf) || ! S_ISREG (stat_buf.st_mode)) { + cairo_test_log (ctx, "Error finding font: %s: file not found?\n", filename); + return CAIRO_TEST_FAILURE; + } + + pattern = FcFreeTypeQuery ((unsigned char *)filename, 0, NULL, &face_count); + if (! pattern) { + cairo_test_log (ctx, "FcFreeTypeQuery failed.\n"); + free (filename); + return cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); + } + + font_face = cairo_ft_font_face_create_for_pattern (pattern); + FcPatternDestroy (pattern); + + status = cairo_font_face_status (font_face); + if (status) { + cairo_test_log (ctx, "Error creating font face for %s: %s\n", + filename, + cairo_status_to_string (status)); + free (filename); + return cairo_test_status_from_status (ctx, status); + } + + free (filename); + if (cairo_font_face_get_type (font_face) != CAIRO_FONT_TYPE_FT) { + cairo_test_log (ctx, "Unexpected value from cairo_font_face_get_type: %d (expected %d)\n", + cairo_font_face_get_type (font_face), CAIRO_FONT_TYPE_FT); + cairo_font_face_destroy (font_face); + return CAIRO_TEST_FAILURE; + } + + cairo_set_font_face (cr, font_face); + cairo_font_face_destroy (font_face); + cairo_set_font_size (cr, 13); + + font_options = cairo_font_options_create (); + +#define CHECK_FONT_EXTENTS(comment) do {\ + cairo_test_status_t test_status; \ + test_status = check_font_extents (ctx, cr, (comment)); \ + if (test_status != CAIRO_TEST_SUCCESS) { \ + cairo_font_options_destroy (font_options); \ + return test_status; \ + } \ +} while (0) + + cairo_font_extents (cr, &font_extents); + CHECK_FONT_EXTENTS ("default"); + + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_ON); + cairo_set_font_options (cr, font_options); + + CHECK_FONT_EXTENTS ("HINT_METRICS_ON"); + + cairo_move_to (cr, 1, font_extents.ascent - 1); + cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); /* blue */ + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_NONE"); + cairo_show_text (cr, "the "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_SLIGHT); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_SLIGHT"); + cairo_show_text (cr, "quick "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_MEDIUM); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_MEDIUM"); + cairo_show_text (cr, "brown"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_FULL); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_ON HINT_STYLE_FULL"); + cairo_show_text (cr, " fox"); + + /* Switch from show_text to text_path/fill to exercise bug #7889 */ + cairo_text_path (cr, " jumps over a lazy dog"); + cairo_fill (cr); + + /* And test it rotated as well for the sake of bug #7888 */ + + cairo_translate (cr, width, height); + cairo_rotate (cr, M_PI); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_DEFAULT); + cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF"); + + cairo_move_to (cr, 1, font_extents.height - font_extents.descent - 1); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_NONE"); + cairo_show_text (cr, "the "); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_SLIGHT); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_SLIGHT"); + cairo_show_text (cr, "quick"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_MEDIUM); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_MEDIUM"); + cairo_show_text (cr, " brown"); + + cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_FULL); + cairo_set_font_options (cr, font_options); + CHECK_FONT_EXTENTS ("HINT_METRICS_OFF HINT_STYLE_FULL"); + cairo_show_text (cr, " fox"); + + cairo_text_path (cr, " jumps over"); + cairo_text_path (cr, " a lazy dog"); + cairo_fill (cr); + + cairo_font_options_destroy (font_options); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bitmap_font, + "Test drawing with a font consisting only of bitmaps" + "\nThe PDF and PS backends embed a slightly distorted font for the rotated case.", + "text", /* keywords */ + "ft", /* requirements */ + 246 + 1, 2 * TEXT_SIZE, + NULL, draw) |