Refactor translation code out of blenfont

- Add blentranslation `BLT_*` module.
- moved & split `BLF_translation.h` into (`BLT_translation.h`, `BLT_lang.h`).
- moved `BLF_*_unifont` functions from `blf_translation.c` to new source file `blf_font_i18n.c`.

1 files changed, 123 insertions, 0 deletions

diff --git a/source/blender/blenfont/intern/blf_font_i18n.c b/source/blender/blenfont/intern/blf_font_i18n.c
new file mode 100644
index 00000000000..da7d2adcdf6
--- /dev/null
+++ b/source/blender/blenfont/intern/blf_font_i18n.c
@@ -0,0 +1,123 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2011 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Blender Foundation,
+ *                 Sergey Sharybin
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/blenfont/intern/blf_font_access.c
+ *  \ingroup blf
+ *
+ * API for accessing font files.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "BLF_api.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_fileops.h"
+#include "BLI_path_util.h"
+#include "BLI_string.h"
+
+#include "BKE_appdir.h"
+
+#ifdef WITH_INTERNATIONAL
+static const char unifont_filename[] = "droidsans.ttf.gz";
+static unsigned char *unifont_ttf = NULL;
+static int unifont_size = 0;
+static const char unifont_mono_filename[] = "bmonofont-i18n.ttf.gz";
+static unsigned char *unifont_mono_ttf = NULL;
+static int unifont_mono_size = 0;
+#endif  /* WITH_INTERNATIONAL */
+
+unsigned char *BLF_get_unifont(int *r_unifont_size)
+{
+#ifdef WITH_INTERNATIONAL
+	if (unifont_ttf == NULL) {
+		const char * const fontpath = BKE_appdir_folder_id(BLENDER_DATAFILES, "fonts");
+		if (fontpath) {
+			char unifont_path[1024];
+
+			BLI_snprintf(unifont_path, sizeof(unifont_path), "%s/%s", fontpath, unifont_filename);
+
+			unifont_ttf = (unsigned char *)BLI_file_ungzip_to_mem(unifont_path, &unifont_size);
+		}
+		else {
+			printf("%s: 'fonts' data path not found for international font, continuing\n", __func__);
+		}
+	}
+
+	*r_unifont_size = unifont_size;
+
+	return unifont_ttf;
+#else
+	(void)r_unifont_size;
+	return NULL;
+#endif
+}
+
+void BLF_free_unifont(void)
+{
+#ifdef WITH_INTERNATIONAL
+	if (unifont_ttf)
+		MEM_freeN(unifont_ttf);
+#else
+#endif
+}
+
+unsigned char *BLF_get_unifont_mono(int *r_unifont_size)
+{
+#ifdef WITH_INTERNATIONAL
+	if (unifont_mono_ttf == NULL) {
+		const char *fontpath = BKE_appdir_folder_id(BLENDER_DATAFILES, "fonts");
+		if (fontpath) {
+			char unifont_path[1024];
+
+			BLI_snprintf(unifont_path, sizeof(unifont_path), "%s/%s", fontpath, unifont_mono_filename);
+
+			unifont_mono_ttf = (unsigned char *)BLI_file_ungzip_to_mem(unifont_path, &unifont_mono_size);
+		}
+		else {
+			printf("%s: 'fonts' data path not found for international monospace font, continuing\n", __func__);
+		}
+	}
+
+	*r_unifont_size = unifont_mono_size;
+
+	return unifont_mono_ttf;
+#else
+	(void)r_unifont_size;
+	return NULL;
+#endif
+}
+
+void BLF_free_unifont_mono(void)
+{
+#ifdef WITH_INTERNATIONAL
+	if (unifont_mono_ttf)
+		MEM_freeN(unifont_mono_ttf);
+#else
+#endif
+}