/* * 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 */ #include "cairo-test.h" #include #include #include #include #include #include #define FONT "6x13.pcf" #define TEXT_SIZE 13 static cairo_test_draw_function_t draw; static const cairo_test_t 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.", 246 + 1, 2 * TEXT_SIZE, draw }; 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}; memset (&font_extents, 0xff, sizeof (cairo_font_extents_t)); cairo_font_extents (cr, &font_extents); 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); free (filename); if (! pattern) { cairo_test_log (ctx, "FcFreeTypeQuery failed.\n"); return CAIRO_TEST_FAILURE; } font_face = cairo_ft_font_face_create_for_pattern (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)); return CAIRO_TEST_FAILURE; } 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); #define CHECK_FONT_EXTENTS(comment) if (check_font_extents (ctx, cr, (comment)) != CAIRO_TEST_SUCCESS) return CAIRO_TEST_FAILURE cairo_font_extents (cr, &font_extents); CHECK_FONT_EXTENTS ("default"); FcPatternDestroy (pattern); cairo_font_face_destroy (font_face); font_options = cairo_font_options_create (); 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; } int main (void) { return cairo_test (&test); }