Grcov report - ft-svg-color-font.c

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/*

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 * Copyright © 2022 Adrian Johnson

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 * Permission is hereby granted, free of charge, to any person

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 * obtaining a copy of this software and associated documentation

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 * files (the "Software"), to deal in the Software without

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 * restriction, including without limitation the rights to use, copy,

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 * modify, merge, publish, distribute, sublicense, and/or sell copies

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 * of the Software, and to permit persons to whom the Software is

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 * furnished to do so, subject to the following conditions:

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 * The above copyright notice and this permission notice shall be

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 * included in all copies or substantial portions of the Software.

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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

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 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

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 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

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 * SOFTWARE.

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 * Author: Adrian Johnson <ajohnson@redneon.com>

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*/

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#include "cairo-test.h"

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#include <cairo-ft.h>

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#define FONT_SIZE 50

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#define MARGIN 5

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#define WIDTH  (FONT_SIZE*4 + MARGIN*2)

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#define HEIGHT (FONT_SIZE*3 + MARGIN*5)

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/* Check the full name to ensure we got an SVG font. */

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#define FONT_FAMILY "Twitter Color Emoji"

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#define FONT_FULLNAME "Twitter Color Emoji SVGinOT"

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static const char spade_utf8[] =   { 0xe2, 0x99, 0xa0, 0x00 }; /* U+2660 glyph 87 */

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static const char club_utf8[] =    { 0xe2, 0x99, 0xa3, 0x00 }; /* U+2663 glyph 88 */

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static const char heart_utf8[] =   { 0xe2, 0x99, 0xa5, 0x00 }; /* U+2665 glyph 89 */

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static const char diamond_utf8[] = { 0xe2, 0x99, 0xa6, 0x00 }; /* U+2666 glyph 90 */

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static cairo_test_status_t

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3

set_color_emoji_font (cairo_t *cr)

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    cairo_font_options_t *font_options;

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    cairo_font_face_t *font_face;

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    FcPattern *pattern;

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    FcPattern *resolved;

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    FcChar8 *font_name;

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    FcResult result;

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    pattern = FcPatternCreate ();

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    if (pattern == NULL)

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	return CAIRO_TEST_NO_MEMORY;

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3

    FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) FONT_FAMILY);

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3

    FcConfigSubstitute (NULL, pattern, FcMatchPattern);

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    font_options = cairo_font_options_create ();

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    cairo_get_font_options (cr, font_options);

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    cairo_ft_font_options_substitute (font_options, pattern);

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    FcDefaultSubstitute (pattern);

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    resolved = FcFontMatch (NULL, pattern, &result);

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    if (resolved == NULL) {

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	FcPatternDestroy (pattern);

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	return CAIRO_TEST_NO_MEMORY;

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3

    if (FcPatternGetString (resolved, FC_FULLNAME, 0, &font_name) == FcResultMatch) {

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        if (strcmp((char*)font_name, FONT_FULLNAME) != 0) {

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3

            const cairo_test_context_t *ctx = cairo_test_get_context (cr);

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            cairo_test_log (ctx, "Could not find %s font\n", FONT_FULLNAME);

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            return CAIRO_TEST_UNTESTED;

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    } else {

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        return CAIRO_TEST_FAILURE;

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    font_face = cairo_ft_font_face_create_for_pattern (resolved);

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    cairo_set_font_face (cr, font_face);

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    cairo_font_options_destroy (font_options);

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    cairo_font_face_destroy (font_face);

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    FcPatternDestroy (pattern);

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    FcPatternDestroy (resolved);

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    return CAIRO_TEST_SUCCESS;

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static cairo_test_status_t

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3

draw (cairo_t *cr, int width, int height)

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    cairo_font_options_t *font_options;

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    cairo_test_status_t result;

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3

    cairo_set_source_rgb (cr, 1, 1, 1);

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    cairo_paint (cr);

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    cairo_set_source_rgb (cr, 0, 0, 0);

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    result = set_color_emoji_font (cr);

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    if (result != CAIRO_TEST_SUCCESS)

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3

        return result;

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    cairo_set_font_size (cr, FONT_SIZE);

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    /* Color glyphs */

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    cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN);

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    cairo_show_text (cr, diamond_utf8);

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    cairo_show_text (cr, club_utf8);

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    cairo_show_text (cr, heart_utf8);

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    cairo_show_text (cr, spade_utf8);

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    /* Non-color glyphs */

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    font_options = cairo_font_options_create ();

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    cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR);

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    cairo_set_font_options (cr, font_options);

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    cairo_move_to (cr, MARGIN, FONT_SIZE*2 + MARGIN*2);

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    cairo_show_text (cr, diamond_utf8);

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    cairo_show_text (cr, club_utf8);

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    cairo_show_text (cr, heart_utf8);

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    cairo_show_text (cr, spade_utf8);

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    /* Color glyph text path */

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    cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_COLOR);

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    cairo_set_font_options (cr, font_options);

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    cairo_font_options_destroy (font_options);

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    cairo_move_to (cr, MARGIN, FONT_SIZE*3 + MARGIN*3);

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    cairo_text_path (cr, diamond_utf8);

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    cairo_text_path (cr, club_utf8);

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    cairo_text_path (cr, heart_utf8);

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    cairo_text_path (cr, spade_utf8);

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    cairo_set_line_width (cr, 1);

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    cairo_stroke (cr);

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    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (ft_svg_color_font,

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	    "Test color font",

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	    "svgrender", /* keywords */

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	    NULL, /* requirements */

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	    WIDTH, HEIGHT,

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	    NULL, draw)