87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
|
/*
|
||
|
|
* Copyright © 2011 Google, 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.
|
||
|
|
*
|
||
|
|
* Google Author(s): Behdad Esfahbod
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HELPER_CAIRO_HH
|
||
|
|
#define HELPER_CAIRO_HH
|
||
|
|
|
||
|
|
#include "hb.hh"
|
||
|
|
#include "options.hh"
|
||
|
|
|
||
|
|
#include <cairo.h>
|
||
|
|
|
||
|
|
|
||
|
|
cairo_scaled_font_t *
|
||
|
|
helper_cairo_create_scaled_font (const font_options_t *font_opts);
|
||
|
|
|
||
|
|
bool
|
||
|
|
helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font);
|
||
|
|
|
||
|
|
extern const char *helper_cairo_supported_formats[];
|
||
|
|
|
||
|
|
cairo_t *
|
||
|
|
helper_cairo_create_context (double w, double h,
|
||
|
|
view_options_t *view_opts,
|
||
|
|
output_options_t *out_opts,
|
||
|
|
cairo_content_t content);
|
||
|
|
|
||
|
|
void
|
||
|
|
helper_cairo_destroy_context (cairo_t *cr);
|
||
|
|
|
||
|
|
|
||
|
|
struct helper_cairo_line_t {
|
||
|
|
cairo_glyph_t *glyphs;
|
||
|
|
unsigned int num_glyphs;
|
||
|
|
char *utf8;
|
||
|
|
unsigned int utf8_len;
|
||
|
|
cairo_text_cluster_t *clusters;
|
||
|
|
unsigned int num_clusters;
|
||
|
|
cairo_text_cluster_flags_t cluster_flags;
|
||
|
|
|
||
|
|
void finish (void) {
|
||
|
|
if (glyphs)
|
||
|
|
cairo_glyph_free (glyphs);
|
||
|
|
if (clusters)
|
||
|
|
cairo_text_cluster_free (clusters);
|
||
|
|
if (utf8)
|
||
|
|
g_free (utf8);
|
||
|
|
}
|
||
|
|
|
||
|
|
void get_advance (double *x_advance, double *y_advance) {
|
||
|
|
*x_advance = glyphs[num_glyphs].x;
|
||
|
|
*y_advance = glyphs[num_glyphs].y;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
void
|
||
|
|
helper_cairo_line_from_buffer (helper_cairo_line_t *l,
|
||
|
|
hb_buffer_t *buffer,
|
||
|
|
const char *text,
|
||
|
|
unsigned int text_len,
|
||
|
|
int scale_bits,
|
||
|
|
hb_bool_t utf8_clusters);
|
||
|
|
|
||
|
|
#endif
|