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@sneetsher
Forked from jjgod/test-hb-coretext.cc
Last active August 29, 2015 14:14
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/* Example code of using harfbuzz together with Core Text APIs. */
#include <hb-coretext.h>
int main(int argc, char* argv[]) {
if (argc != 3) {
fprintf(stderr, "usage: %s <PostScript-Name> <text>\n", argv[0]);
return 1;
}
CFStringRef font_name =
CFStringCreateWithCString(NULL, argv[1], kCFStringEncodingUTF8);
if (!font_name || !CFStringGetLength(font_name)) {
fprintf(stderr, "Given font name must be valid.\n");
if (font_name)
CFRelease(font_name);
return 1;
}
CGFontRef cg_font = CGFontCreateWithFontName(font_name);
CFRelease(font_name);
font_name = NULL;
if (!cg_font) {
fprintf(stderr, "Cannot create font with name '%s'.\n", argv[1]);
return 1;
}
hb_face_t* face = hb_coretext_face_create(cg_font);
CGFontRelease(cg_font);
unsigned int upem = hb_face_get_upem(face);
hb_font_t *font = hb_font_create(face);
hb_face_destroy(face);
hb_font_set_scale(font, upem, upem);
hb_buffer_t *buffer = hb_buffer_create();
hb_buffer_add_utf8(buffer, argv[2], -1, 0, -1);
hb_buffer_guess_segment_properties(buffer);
hb_shape(font, buffer, NULL, 0);
unsigned int count = hb_buffer_get_length(buffer);
hb_glyph_info_t *infos = hb_buffer_get_glyph_infos(buffer, NULL);
hb_glyph_position_t *positions =
hb_buffer_get_glyph_positions(buffer, NULL);
for (unsigned int i = 0; i < count; i++)
{
hb_glyph_info_t *info = &infos[i];
hb_glyph_position_t *pos = &positions[i];
printf("cluster %d glyph 0x%x at (%d,%d)+(%d,%d)\n",
info->cluster,
info->codepoint,
pos->x_offset,
pos->x_offset,
pos->x_advance,
pos->y_advance);
}
hb_buffer_destroy(buffer);
hb_font_destroy(font);
return 0;
}
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