/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ // This file is available under and governed by the GNU General Public // License version 2 only, as published by the Free Software Foundation. // However, the following notice accompanied the original version of this // file: // /* * Copyright © 2009 Red Hat, Inc. * * This is part of HarfBuzz, a text shaping library. * * Permission is hereby granted, without written agreement and without * license or royalty fees, to use, copy, modify, and distribute this * software and its documentation for any purpose, provided that the * above copyright notice and the following two paragraphs appear in * all copies of this software. * * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. * * Red Hat Author(s): Behdad Esfahbod */ #ifndef HB_H_IN #error "Include instead." #endif #ifndef HB_FONT_H #define HB_FONT_H #include "hb-common.h" #include "hb-face.h" HB_BEGIN_DECLS typedef struct hb_font_t hb_font_t; /* * hb_font_funcs_t */ typedef struct hb_font_funcs_t hb_font_funcs_t; hb_font_funcs_t * hb_font_funcs_create (void); hb_font_funcs_t * hb_font_funcs_get_empty (void); hb_font_funcs_t * hb_font_funcs_reference (hb_font_funcs_t *ffuncs); void hb_font_funcs_destroy (hb_font_funcs_t *ffuncs); hb_bool_t hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs, hb_user_data_key_t *key, void * data, hb_destroy_func_t destroy, hb_bool_t replace); void * hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs, hb_user_data_key_t *key); void hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs); hb_bool_t hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs); /* glyph extents */ /* Note that height is negative in coordinate systems that grow up. */ typedef struct hb_glyph_extents_t { hb_position_t x_bearing; /* left side of glyph from origin. */ hb_position_t y_bearing; /* top side of glyph from origin. */ hb_position_t width; /* distance from left to right side. */ hb_position_t height; /* distance from top to bottom side. */ } hb_glyph_extents_t; /* func types */ typedef hb_bool_t (*hb_font_get_glyph_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t unicode, hb_codepoint_t variation_selector, hb_codepoint_t *glyph, void *user_data); typedef hb_position_t (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, void *user_data); typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_h_advance_func_t; typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_v_advance_func_t; typedef hb_bool_t (*hb_font_get_glyph_origin_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y, void *user_data); typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_h_origin_func_t; typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_v_origin_func_t; typedef hb_position_t (*hb_font_get_glyph_kerning_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, void *user_data); typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_h_kerning_func_t; typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t; typedef hb_bool_t (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_glyph_extents_t *extents, void *user_data); typedef hb_bool_t (*hb_font_get_glyph_contour_point_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, unsigned int point_index, hb_position_t *x, hb_position_t *y, void *user_data); typedef hb_bool_t (*hb_font_get_glyph_name_func_t) (hb_font_t *font, void *font_data, hb_codepoint_t glyph, char *name, unsigned int size, void *user_data); typedef hb_bool_t (*hb_font_get_glyph_from_name_func_t) (hb_font_t *font, void *font_data, const char *name, int len, /* -1 means nul-terminated */ hb_codepoint_t *glyph, void *user_data); /* func setters */ /** * hb_font_funcs_set_glyph_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_h_advance_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_h_advance_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_v_advance_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_v_advance_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_h_origin_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_h_origin_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_v_origin_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_v_origin_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_h_kerning_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_h_kerning_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_v_kerning_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_v_kerning_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_extents_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_extents_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_contour_point_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_contour_point_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_contour_point_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_name_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_name_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_name_func_t func, void *user_data, hb_destroy_func_t destroy); /** * hb_font_funcs_set_glyph_from_name_func: * @ffuncs: font functions. * @func: (closure user_data) (destroy destroy) (scope notified): * @user_data: * @destroy: * * * * Since: 0.9.2 **/ void hb_font_funcs_set_glyph_from_name_func (hb_font_funcs_t *ffuncs, hb_font_get_glyph_from_name_func_t func, void *user_data, hb_destroy_func_t destroy); /* func dispatch */ hb_bool_t hb_font_get_glyph (hb_font_t *font, hb_codepoint_t unicode, hb_codepoint_t variation_selector, hb_codepoint_t *glyph); hb_position_t hb_font_get_glyph_h_advance (hb_font_t *font, hb_codepoint_t glyph); hb_position_t hb_font_get_glyph_v_advance (hb_font_t *font, hb_codepoint_t glyph); hb_bool_t hb_font_get_glyph_h_origin (hb_font_t *font, hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y); hb_bool_t hb_font_get_glyph_v_origin (hb_font_t *font, hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y); hb_position_t hb_font_get_glyph_h_kerning (hb_font_t *font, hb_codepoint_t left_glyph, hb_codepoint_t right_glyph); hb_position_t hb_font_get_glyph_v_kerning (hb_font_t *font, hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph); hb_bool_t hb_font_get_glyph_extents (hb_font_t *font, hb_codepoint_t glyph, hb_glyph_extents_t *extents); hb_bool_t hb_font_get_glyph_contour_point (hb_font_t *font, hb_codepoint_t glyph, unsigned int point_index, hb_position_t *x, hb_position_t *y); hb_bool_t hb_font_get_glyph_name (hb_font_t *font, hb_codepoint_t glyph, char *name, unsigned int size); hb_bool_t hb_font_get_glyph_from_name (hb_font_t *font, const char *name, int len, /* -1 means nul-terminated */ hb_codepoint_t *glyph); /* high-level funcs, with fallback */ void hb_font_get_glyph_advance_for_direction (hb_font_t *font, hb_codepoint_t glyph, hb_direction_t direction, hb_position_t *x, hb_position_t *y); void hb_font_get_glyph_origin_for_direction (hb_font_t *font, hb_codepoint_t glyph, hb_direction_t direction, hb_position_t *x, hb_position_t *y); void hb_font_add_glyph_origin_for_direction (hb_font_t *font, hb_codepoint_t glyph, hb_direction_t direction, hb_position_t *x, hb_position_t *y); void hb_font_subtract_glyph_origin_for_direction (hb_font_t *font, hb_codepoint_t glyph, hb_direction_t direction, hb_position_t *x, hb_position_t *y); void hb_font_get_glyph_kerning_for_direction (hb_font_t *font, hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, hb_direction_t direction, hb_position_t *x, hb_position_t *y); hb_bool_t hb_font_get_glyph_extents_for_origin (hb_font_t *font, hb_codepoint_t glyph, hb_direction_t direction, hb_glyph_extents_t *extents); hb_bool_t hb_font_get_glyph_contour_point_for_origin (hb_font_t *font, hb_codepoint_t glyph, unsigned int point_index, hb_direction_t direction, hb_position_t *x, hb_position_t *y); /* Generates gidDDD if glyph has no name. */ void hb_font_glyph_to_string (hb_font_t *font, hb_codepoint_t glyph, char *s, unsigned int size); /* Parses gidDDD and uniUUUU strings automatically. */ hb_bool_t hb_font_glyph_from_string (hb_font_t *font, const char *s, int len, /* -1 means nul-terminated */ hb_codepoint_t *glyph); /* * hb_font_t */ /* Fonts are very light-weight objects */ hb_font_t * hb_font_create (hb_face_t *face); hb_font_t * hb_font_create_sub_font (hb_font_t *parent); hb_font_t * hb_font_get_empty (void); hb_font_t * hb_font_reference (hb_font_t *font); void hb_font_destroy (hb_font_t *font); hb_bool_t hb_font_set_user_data (hb_font_t *font, hb_user_data_key_t *key, void * data, hb_destroy_func_t destroy, hb_bool_t replace); void * hb_font_get_user_data (hb_font_t *font, hb_user_data_key_t *key); void hb_font_make_immutable (hb_font_t *font); hb_bool_t hb_font_is_immutable (hb_font_t *font); void hb_font_set_parent (hb_font_t *font, hb_font_t *parent); hb_font_t * hb_font_get_parent (hb_font_t *font); hb_face_t * hb_font_get_face (hb_font_t *font); void hb_font_set_funcs (hb_font_t *font, hb_font_funcs_t *klass, void *font_data, hb_destroy_func_t destroy); /* Be *very* careful with this function! */ void hb_font_set_funcs_data (hb_font_t *font, void *font_data, hb_destroy_func_t destroy); void hb_font_set_scale (hb_font_t *font, int x_scale, int y_scale); void hb_font_get_scale (hb_font_t *font, int *x_scale, int *y_scale); /* * A zero value means "no hinting in that direction" */ void hb_font_set_ppem (hb_font_t *font, unsigned int x_ppem, unsigned int y_ppem); void hb_font_get_ppem (hb_font_t *font, unsigned int *x_ppem, unsigned int *y_ppem); HB_END_DECLS #endif /* HB_FONT_H */