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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2009 Blender Foundation. All rights reserved. */
/** \file
* \ingroup blf
*
* Manage search paths for font files.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include "MEM_guardedalloc.h"
#include "DNA_vec_types.h"
#include "BLI_fileops.h"
#include "BLI_listbase.h"
#include "BLI_path_util.h"
#include "BLI_string.h"
#include "BLI_threads.h"
#include "BLI_utildefines.h"
#include "BLF_api.h"
#include "blf_internal.h"
#include "blf_internal_types.h"
static ListBase global_font_dir = {NULL, NULL};
static DirBLF *blf_dir_find(const char *path)
{
DirBLF *p;
p = global_font_dir.first;
while (p) {
if (BLI_path_cmp(p->path, path) == 0) {
return p;
}
p = p->next;
}
return NULL;
}
void BLF_dir_add(const char *path)
{
DirBLF *dir;
dir = blf_dir_find(path);
if (dir) { /* already in the list ? just return. */
return;
}
dir = (DirBLF *)MEM_callocN(sizeof(DirBLF), "BLF_dir_add");
dir->path = BLI_strdup(path);
BLI_addhead(&global_font_dir, dir);
}
void BLF_dir_rem(const char *path)
{
DirBLF *dir;
dir = blf_dir_find(path);
if (dir) {
BLI_remlink(&global_font_dir, dir);
MEM_freeN(dir->path);
MEM_freeN(dir);
}
}
char **BLF_dir_get(int *ndir)
{
DirBLF *p;
char **dirs;
char *path;
int i, count;
count = BLI_listbase_count(&global_font_dir);
if (!count) {
return NULL;
}
dirs = (char **)MEM_callocN(sizeof(char *) * count, "BLF_dir_get");
p = global_font_dir.first;
i = 0;
while (p) {
path = BLI_strdup(p->path);
dirs[i] = path;
p = p->next;
}
*ndir = i;
return dirs;
}
void BLF_dir_free(char **dirs, int count)
{
for (int i = 0; i < count; i++) {
char *path = dirs[i];
MEM_freeN(path);
}
MEM_freeN(dirs);
}
char *blf_dir_search(const char *file)
{
BLI_assert_msg(!BLI_path_is_rel(file), "Relative paths must always be expanded!");
DirBLF *dir;
char full_path[FILE_MAX];
char *s = NULL;
for (dir = global_font_dir.first; dir; dir = dir->next) {
BLI_join_dirfile(full_path, sizeof(full_path), dir->path, file);
if (BLI_exists(full_path)) {
s = BLI_strdup(full_path);
break;
}
}
if (!s) {
/* This may be an absolute path which exists. */
if (BLI_exists(file)) {
s = BLI_strdup(file);
}
}
return s;
}
char *blf_dir_metrics_search(const char *filepath)
{
char *mfile;
char *s;
mfile = BLI_strdup(filepath);
s = strrchr(mfile, '.');
if (s) {
if (BLI_strnlen(s, 4) < 4) {
MEM_freeN(mfile);
return NULL;
}
s++;
s[0] = 'a';
s[1] = 'f';
s[2] = 'm';
/* First check `.afm`. */
if (BLI_exists(mfile)) {
return mfile;
}
/* And now check `.pfm`. */
s[0] = 'p';
if (BLI_exists(mfile)) {
return mfile;
}
}
MEM_freeN(mfile);
return NULL;
}
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