Replacing gettext i18n backend by boost::locale one.

This commit adds a small and simplistic C wrapper around boost's locale library as intern/locale, and heavily simplifies/reduces Blender's own i18n code (under blenfont/ dir). And it adds back UI translation on windows' official builds (with msvc)!

Note to platform maintainers: iconv and gettext (libintl) can now be removed from precompiled libs (not gettext binaries, under windows, of course ;) ).

Note to MinGW32/64 users: boost_locale lib has not yet been uploaded for those build env, please disable WITH_INTERNATIONAL for now (hopefully will be fixed very soon, have contacted psy-fy).

4 files changed, 194 insertions, 0 deletions

diff --git a/intern/locale/CMakeLists.txt b/intern/locale/CMakeLists.txt
new file mode 100644
index 00000000000..f3356bcda49
--- /dev/null
+++ b/intern/locale/CMakeLists.txt
@@ -0,0 +1,44 @@
+# ***** 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) 2012, Blender Foundation
+# All rights reserved.
+#
+# The Original Code is: all of this file.
+#
+# Contributor(s): Bastien Montagne.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(INC
+	.
+)
+
+set(INC_SYS
+)
+
+set(SRC
+	boost_locale_wrapper.cpp
+)
+
+if(WITH_INTERNATIONAL)
+	list(APPEND INC_SYS
+		${BOOST_INCLUDE_DIR}
+	)
+	add_definitions(-DWITH_INTERNATIONAL)
+endif()
+
+blender_add_lib(bf_intern_locale "${SRC}" "${INC}" "${INC_SYS}")
diff --git a/intern/locale/SConscript b/intern/locale/SConscript
new file mode 100644
index 00000000000..4a1357b76e4
--- /dev/null
+++ b/intern/locale/SConscript
@@ -0,0 +1,14 @@
+#!/usr/bin/python
+
+Import('env')
+
+sources = env.Glob('*.cpp')
+
+incs = '.'
+defs = []
+
+if env['WITH_BF_INTERNATIONAL']:
+    defs.append('WITH_INTERNATIONAL')
+    incs += ' ' + env['BF_BOOST_INC']
+
+env.BlenderLib( 'bf_intern_locale', sources, Split(incs), defs, libtype=['extern','player'], priority=[10, 185])
diff --git a/intern/locale/boost_locale_wrapper.cpp b/intern/locale/boost_locale_wrapper.cpp
new file mode 100644
index 00000000000..ec2976f19b9
--- /dev/null
+++ b/intern/locale/boost_locale_wrapper.cpp
@@ -0,0 +1,87 @@
+/*
+ * ***** 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) 2012, Blender Foundation
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Bastien Montagne.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ */
+
+#include <boost/locale.hpp>
+
+#include "boost_locale_wrapper.h"
+
+static std::string messages_path;
+static std::string default_domain;
+
+void bl_locale_init(const char *_messages_path, const char *_default_domain)
+{
+	// Avoid using ICU backend, we do not need its power and it's rather heavy!
+	boost::locale::localization_backend_manager lman = boost::locale::localization_backend_manager::global(); 
+#if defined (_WIN32)
+	lman.select("winapi");
+#else
+	lman.select("posix");
+#endif
+	boost::locale::localization_backend_manager::global(lman);
+
+	messages_path = _messages_path;
+	default_domain = _default_domain;
+}
+
+void bl_locale_set(const char *locale)
+{
+	boost::locale::generator gen;
+	// Specify location of dictionaries.
+	gen.add_messages_path(messages_path);
+	gen.add_messages_domain(default_domain);
+	//gen.set_default_messages_domain(default_domain);
+
+	if (locale && locale[0]) {
+		std::locale::global(gen(locale));
+	}
+	else {
+		std::locale::global(gen(""));
+	}
+	// Note: boost always uses "C" LC_NUMERIC by default!
+}
+
+const char* bl_locale_pgettext(const char *msgctxt, const char *msgid)
+{
+	// Note: We cannot use short stuff like boost::locale::gettext, because those return
+	//       std::basic_string objects, which c_ptr()-returned char* is no more valid
+	//       once deleted (which happens as soons they are out of scope of this func).
+	typedef boost::locale::message_format<char> char_message_facet;
+	try {
+		std::locale l;
+		char_message_facet const &facet = std::use_facet<char_message_facet>(l);
+		char const *r = facet.get(0, msgctxt, msgid);
+		if(r)
+			return r;
+		return msgid;
+	}
+	catch(std::exception const &e) {
+//		std::cout << "boost_locale_pgettext: " << e.what() << " \n";
+		return msgid;
+	}
+}
+
diff --git a/intern/locale/boost_locale_wrapper.h b/intern/locale/boost_locale_wrapper.h
new file mode 100644
index 00000000000..e7956d216f1
--- /dev/null
+++ b/intern/locale/boost_locale_wrapper.h
@@ -0,0 +1,49 @@
+/*
+ * ***** 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) 2012, Blender Foundation
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Bastien Montagne.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ */
+
+/** \file locale/boost_locale_wrapper.h
+ *  \ingroup locale
+ *  A thin C wrapper around boost::locale...
+ */
+
+#ifndef __BOOST_LOCALE_WRAPPER_H__
+#define __BOOST_LOCALE_WRAPPER_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void bl_locale_init(const char *messages_path, const char *default_domain);
+void bl_locale_set(const char *locale);
+const char* bl_locale_pgettext(const char *msgctxt, const char *msgid);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BOOST_LOCALE_WRAPPER_H__ */