WRaster: Create structure to make the library translatable

The library did not propose the mechanisms to be translated, this patch is
creating the structure in autoconf/automake and the translation directory
so its messages can be also translated.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>

Makefile.am

@@ -80,7 +80,7 @@ if HAVE_XGETTEXT
 	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) update-lang || exit $$?); \
 	done
 
-SUBDIRS_PO = WINGs/po po util/po WPrefs.app/po
+SUBDIRS_PO = wrlib/po WINGs/po po util/po WPrefs.app/po
 else
 	@echo "Error: the program 'xgettext' was not found by configure, it is mandatory for this operation" >&2 ; exit 1
 endif

configure.ac

@@ -906,7 +906,7 @@ AC_CONFIG_FILES(
     Makefile
 
     dnl WRaster Library
-    wrlib/Makefile
+    wrlib/Makefile wrlib/po/Makefile
     wrlib/tests/Makefile
 
     dnl WINGs toolkit

doc/build/Translations.texi

@@ -419,23 +419,24 @@ submit your contribution to the project:
 this is done with @command{git}.
 @end itemize
 
-In @sc{Window Maker}, you have actually 4 @code{po} files to take care of:
+In @sc{Window Maker}, you have actually 5 @code{po} files to take care of:
 
 @itemize @minus
 @item @file{po/@emph{<lang>}.po}: for @sc{Window Maker} itself
 @item @file{WPrefs.app/po/@emph{<lang>}.po}: for the Preference Editor program
 @item @file{WINGs/po/@emph{<lang>}.po}: for the graphic toolkit library
+@item @file{wrlib/po/@emph{<lang>}.po}: for the image processing library
 @item @file{util/po/@emph{<lang>}.po}: for the command-line tools of @sc{Window Maker}
 @end itemize
 
 As stated previously, there is a @command{make} target that can help you to automatically generate
-the POT and update the PO for these 4 cases:
+the POT and update the PO for these 5 cases:
 
 @example
 make update-lang PO=<lang>
 @end example
 
-Once run, it will have updated as needed the 4 @code{po} files against the latest source code.
+Once run, it will have updated as needed the 5 @code{po} files against the latest source code.
 You may wish to use the command @command{git gui} to view the changes;
 you can now edit the files to complete the translation, correct them, remove deprecated stuff, ...
 Please note that the encoding should be set to @emph{UTF-8} as this is now the standard.

m4/wm_i18n.m4

@@ -37,7 +37,7 @@ AC_DEFUN_ONCE([WM_I18N_LANGUAGES],
 [AC_ARG_VAR([LINGUAS],
     [list of language translations to support (I18N), use 'list' to get the list of supported languages, default: none])dnl
 AC_DEFUN([WM_ALL_LANGUAGES],
-    [m4_esyscmd([( ls WINGs/po/ ; ls po/ ; ls WPrefs.app/po/ ; ls util/po/ ) | sed -n -e '/po$/{s,\.po,,;p}' | sort -u | tr '\n' ' '])])dnl
+    [m4_esyscmd([( ls wrlib/po/ ; ls WINGs/po/ ; ls po/ ; ls WPrefs.app/po/ ; ls util/po/ ) | sed -n -e '/po$/{s,\.po,,;p}' | sort -u | tr '\n' ' '])])dnl
 dnl We 'divert' the macro to have it executed as soon as the option list have
 dnl been processed, so the list of locales will be printed after the configure
 dnl options have been parsed, but before any test have been run
@@ -66,6 +66,7 @@ AS_IF([test "x$LINGUAS" != "x"],
      supported_locales=""
 
      # This is the list of locales that our archive currently supports
+     wraster_locales=" m4_esyscmd([ls wrlib/po/ | sed -n '/po$/{s,.po,,;p}' | tr '\n' ' '])"
      wings_locales=" m4_esyscmd([ls WINGs/po/ | sed -n '/po$/{s,.po,,;p}' | tr '\n' ' '])"
      wmaker_locales=" m4_esyscmd([ls po/ | sed -n '/po$/{s,.po,,;p}' | tr '\n' ' '])"
      wprefs_locales=" m4_esyscmd([ls WPrefs.app/po/ | sed -n '/po$/{s,.po,,;p}' | tr '\n' ' '])"
@@ -81,7 +82,7 @@ AS_IF([test "x$LINGUAS" != "x"],
      for lang in $LINGUAS; do
          found=0
          wm_missing=""
-         m4_foreach([REGION], [WINGs, wmaker, WPrefs, util, man],
+         m4_foreach([REGION], [WRaster, WINGs, wmaker, WPrefs, util, man],
              [AS_IF([echo "$[]m4_tolower(REGION)[]_locales" | grep " $lang " > /dev/null],
                  [m4_toupper(REGION)MOFILES="$[]m4_toupper(REGION)MOFILES $lang.mo"
                   found=1],
@@ -103,6 +104,7 @@ AS_IF([test "x$LINGUAS" != "x"],
      MANLANGDIRS="`echo $MANMOFILES | sed -e 's,\.mo,,g' `"
 ],
 [INTLIBS=""
+ WRASTERMOFILES=""
  WINGSMOFILES=""
  WMAKERMOFILES=""
  WPREFSMOFILES=""
@@ -112,6 +114,7 @@ AS_IF([test "x$LINGUAS" != "x"],
 dnl
 dnl The variables that are used in the Makefiles:
 AC_SUBST([INTLIBS])dnl
+AC_SUBST([WRASTERMOFILES])dnl
 AC_SUBST([WINGSMOFILES])dnl
 AC_SUBST([WMAKERMOFILES])dnl
 AC_SUBST([WPREFSMOFILES])dnl

wrlib/Makefile.am

@@ -1,6 +1,6 @@
 ## automake input file for wrlib
 
-SUBDIRS = .
+SUBDIRS = . po
 DIST_SUBDIRS = $(SUBDIRS) tests
 
 AUTOMAKE_OPTIONS =

wrlib/po/Makefile.am

@@ -0,0 +1,90 @@
+DOMAIN = WRaster
+
+CATALOGS = @WRASTERMOFILES@
+
+CLEANFILES = $(CATALOGS) $(DOMAIN).pot
+
+EXTRA_DIST =
+
+POTFILES  = \
+	$(top_srcdir)/wrlib/raster.c	\
+	$(top_srcdir)/wrlib/alpha_combine.c	\
+	$(top_srcdir)/wrlib/draw.c	\
+	$(top_srcdir)/wrlib/color.c	\
+	$(top_srcdir)/wrlib/load.c	\
+	$(top_srcdir)/wrlib/save.c	\
+	$(top_srcdir)/wrlib/gradient.c	\
+	$(top_srcdir)/wrlib/xpixmap.c	\
+	$(top_srcdir)/wrlib/convert.c	\
+	$(top_srcdir)/wrlib/context.c	\
+	$(top_srcdir)/wrlib/misc.c	\
+	$(top_srcdir)/wrlib/scale.c	\
+	$(top_srcdir)/wrlib/rotate.c	\
+	$(top_srcdir)/wrlib/flip.c	\
+	$(top_srcdir)/wrlib/convolve.c	\
+	$(top_srcdir)/wrlib/save_xpm.c	\
+	$(top_srcdir)/wrlib/xutil.c	\
+	$(top_srcdir)/wrlib/load_ppm.c	\
+	$(top_srcdir)/wrlib/load_gif.c	\
+	$(top_srcdir)/wrlib/load_jpeg.c	\
+	$(top_srcdir)/wrlib/load_png.c	\
+	$(top_srcdir)/wrlib/load_tiff.c	\
+	$(top_srcdir)/wrlib/load_xpm.c	\
+	$(top_srcdir)/wrlib/load_xpm_normalized.c	\
+	$(top_srcdir)/wrlib/load_webp.c	\
+	$(top_srcdir)/wrlib/load_magick.c
+
+SUFFIXES = .po .mo
+
+.po.mo:
+	$(AM_V_GEN)$(MSGFMT) -c -o $@ $<
+
+
+all-local: $(CATALOGS)
+
+
+.PHONY: update-lang
+
+if HAVE_XGETTEXT
+update-lang: $(DOMAIN).pot
+	$(AM_V_GEN)$(top_srcdir)/script/generate-po-from-template.sh \
+	    -n "$(PACKAGE_NAME)" -v "$(PACKAGE_VERSION)" -b "$(PACKAGE_BUGREPORT)" \
+	    -t "$(DOMAIN).pot"  "$(srcdir)/$(PO).po"
+
+$(DOMAIN).pot: $(POTFILES)
+	$(AM_V_GEN)$(XGETTEXT) --default-domain=$(DOMAIN) \
+	    --add-comments --keyword=_ --keyword=N_ $(POTFILES)
+	@if cmp -s $(DOMAIN).po $(DOMAIN).pot; then \
+	    rm -f $(DOMAIN).po; \
+	else \
+	    mv -f $(DOMAIN).po $(DOMAIN).pot; \
+	fi
+endif
+
+
+install-data-local:  $(CATALOGS)
+	$(mkinstalldirs) $(DESTDIR)$(localedir)
+	for n in $(CATALOGS) __DuMmY ; do \
+		if test "$$n" -a "$$n" != "__DuMmY" ; then \
+			l=`basename $$n .mo`; \
+			$(mkinstalldirs) $(DESTDIR)$(localedir)/$$l/LC_MESSAGES; \
+			$(INSTALL_DATA) -m 644 $$n $(DESTDIR)$(localedir)/$$l/LC_MESSAGES/$(DOMAIN).mo; \
+		fi; \
+	done
+
+uninstall-local:
+	for n in $(CATALOGS) ; do \
+		l=`basename $$n .mo`; \
+		rm -f $(DESTDIR)$(localedir)/$$l/LC_MESSAGES/$(DOMAIN).mo; \
+	done
+
+# Create a 'silent rule' for our make check the same way automake does
+AM_V_CHKTRANS = $(am__v_CHKTRANS_$(V))
+am__v_CHKTRANS_ = $(am__v_CHKTRANS_$(AM_DEFAULT_VERBOSITY))
+am__v_CHKTRANS_0 = @echo "  CHK     translations" ;
+am__v_CHKTRANS_1 =
+
+# 'make check' will make sure the tranlation sources are in line with the compiled source
+check-local:
+	$(AM_V_CHKTRANS)$(top_srcdir)/script/check-translation-sources.sh \
+		"$(srcdir)" -s "$(top_srcdir)/wrlib/Makefile.am"