tornavis/source/blender/blenfont/intern/blf_font_default.cc

102 lines
2.6 KiB
C++

/* SPDX-FileCopyrightText: 2011 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup blf
*
* API for loading default font files.
*/
#include <cstdio>
#include "BLF_api.hh"
#include "BLI_fileops.h"
#include "BLI_path_util.h"
#include "BKE_appdir.hh"
#ifdef WIN32
# include "BLI_winstuff.h"
#endif
static int blf_load_font_default(const char *filename, const bool unique)
{
const std::optional<std::string> dir = BKE_appdir_folder_id(BLENDER_DATAFILES,
BLF_DATAFILES_FONTS_DIR);
if (!dir.has_value()) {
fprintf(stderr,
"%s: 'fonts' data path not found for '%s', will not be able to display text\n",
__func__,
filename);
return -1;
}
char filepath[FILE_MAX];
BLI_path_join(filepath, sizeof(filepath), dir->c_str(), filename);
return (unique) ? BLF_load_unique(filepath) : BLF_load(filepath);
}
int BLF_load_default(const bool unique)
{
int font_id = blf_load_font_default(BLF_DEFAULT_PROPORTIONAL_FONT, unique);
BLF_enable(font_id, BLF_DEFAULT);
return font_id;
}
int BLF_load_mono_default(const bool unique)
{
int font_id = blf_load_font_default(BLF_DEFAULT_MONOSPACED_FONT, unique);
BLF_enable(font_id, BLF_MONOSPACED | BLF_DEFAULT);
return font_id;
}
static void blf_load_datafiles_dir()
{
const char *datafiles_fonts_dir = BLF_DATAFILES_FONTS_DIR SEP_STR;
const std::optional<std::string> path = BKE_appdir_folder_id(BLENDER_DATAFILES,
datafiles_fonts_dir);
if (!path.has_value()) {
fprintf(stderr, "Font data directory \"%s\" could not be detected!\n", datafiles_fonts_dir);
return;
}
direntry *file_list;
uint file_list_num = BLI_filelist_dir_contents(path->c_str(), &file_list);
for (int i = 0; i < file_list_num; i++) {
if (S_ISDIR(file_list[i].s.st_mode)) {
continue;
}
const char *filepath = file_list[i].path;
if (!BLI_path_extension_check_n(
filepath, ".ttf", ".ttc", ".otf", ".otc", ".woff", ".woff2", nullptr))
{
continue;
}
if (BLF_is_loaded(filepath)) {
continue;
}
/* Attempt to load the font. */
int font_id = BLF_load(filepath);
if (font_id == -1) {
fprintf(stderr, "Unable to load font: %s\n", filepath);
continue;
}
BLF_enable(font_id, BLF_DEFAULT);
}
BLI_filelist_free(file_list, file_list_num);
}
void BLF_load_font_stack()
{
/* Load these if not already, might have been replaced by user custom. */
BLF_load_default(false);
BLF_load_mono_default(false);
blf_load_datafiles_dir();
}