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godotengine
GitHub Repository: godotengine/godot
 Path: blob/master/thirdparty/harfbuzz/src/hb-cairo.h
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/*

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 * Copyright © 2022 Red Hat, Inc.

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 *

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 *  This is part of HarfBuzz, a text shaping library.

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 *

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 * Permission is hereby granted, without written agreement and without

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 * license or royalty fees, to use, copy, modify, and distribute this

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 * software and its documentation for any purpose, provided that the

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 * above copyright notice and the following two paragraphs appear in

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 * all copies of this software.

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 *

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 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

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 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

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 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

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 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

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 * DAMAGE.

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 *

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 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

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 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

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 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

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 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

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 *

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 * Red Hat Author(s): Matthias Clasen

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 */

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#ifndef HB_CAIRO_H

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#define HB_CAIRO_H

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#include "hb.h"

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#include <cairo.h>

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HB_BEGIN_DECLS

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HB_EXTERN cairo_font_face_t *

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hb_cairo_font_face_create_for_font (hb_font_t *font);

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HB_EXTERN hb_font_t *

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hb_cairo_font_face_get_font (cairo_font_face_t *font_face);

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HB_EXTERN cairo_font_face_t *

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hb_cairo_font_face_create_for_face (hb_face_t *face);

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HB_EXTERN hb_face_t *

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hb_cairo_font_face_get_face (cairo_font_face_t *font_face);

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/**

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 * hb_cairo_font_init_func_t:

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 * @font: The #hb_font_t being created

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 * @scaled_font: The respective #cairo_scaled_font_t

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 * @user_data: User data accompanying this method

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 *

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 * The type of a virtual method to be called when a cairo

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 * face created using hb_cairo_font_face_create_for_face()

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 * creates an #hb_font_t for a #cairo_scaled_font_t.

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 *

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 * Return value: the #hb_font_t value to use; in most cases same as @font

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 *

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 * Since: 7.0.0

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 */

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typedef hb_font_t * (*hb_cairo_font_init_func_t) (hb_font_t *font,

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						  cairo_scaled_font_t *scaled_font,

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						  void *user_data);

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HB_EXTERN void

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hb_cairo_font_face_set_font_init_func (cairo_font_face_t *font_face,

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				       hb_cairo_font_init_func_t func,

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				       void *user_data,

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				       hb_destroy_func_t destroy);

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HB_EXTERN hb_font_t *

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hb_cairo_scaled_font_get_font (cairo_scaled_font_t *scaled_font);

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HB_EXTERN void

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hb_cairo_font_face_set_scale_factor (cairo_font_face_t *font_face,

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				     unsigned int scale_factor);

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HB_EXTERN unsigned int

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hb_cairo_font_face_get_scale_factor (cairo_font_face_t *font_face);

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HB_EXTERN void

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hb_cairo_glyphs_from_buffer (hb_buffer_t *buffer,

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			     hb_bool_t utf8_clusters,

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			     double x_scale_factor,

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			     double y_scale_factor,

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			     double x,

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			     double y,

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			     const char *utf8,

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			     int utf8_len,

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			     cairo_glyph_t **glyphs,

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			     unsigned int *num_glyphs,

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			     cairo_text_cluster_t **clusters,

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			     unsigned int *num_clusters,

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			     cairo_text_cluster_flags_t *cluster_flags);

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HB_END_DECLS

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#endif /* HB_CAIRO_H */

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