ui: Add starter of a translation reference example

.gitignore

@@ -1 +1,3 @@
 build
+*.pot
+

reference/c/ui/meson.build

@@ -9,4 +9,5 @@ efl = dependency('efl-ui', version : '>=1.20.99')
 
 inc = include_directories('.')
 subdir('src')
+subdir('po')
 

reference/c/ui/po/POTFILES

@@ -0,0 +1 @@
+src/ui_translation.c

reference/c/ui/po/meson.build

@@ -0,0 +1,4 @@
+i18n = import('i18n')
+i18n.gettext('example_translation',
+             args : '--keyword=efl_ui_translatable_text_set:2')
+

reference/c/ui/src/meson.build

@@ -13,3 +13,11 @@ executable('efl_reference_ui_container',
   include_directories : inc,
   install : true
 )
+
+executable('efl_reference_ui_translation',
+  files(['ui_translation.c']),
+  dependencies : deps,
+  include_directories : inc,
+  install : true
+)
+

reference/c/ui/src/ui_translation.c

@@ -0,0 +1,54 @@
+#define EFL_EO_API_SUPPORT 1
+#define EFL_BETA_API_SUPPORT 1
+
+#include <stdio.h>
+
+#include <Eina.h>
+#include <Elementary.h>
+#include <Efl_Ui.h>
+
+/*
+ * Efl.Ui translation exmaples.
+ *
+ * Efl.Ui contains a way to manage translations provided by gettext or
+ * other translation provider. This example shows how to set it up and to
+ * extract strings for translation. (see src/meson.build).
+ *
+ * The gettext extraction command is:
+ * "xgettext --keyword=efl_ui_translatable_text_set:2 --from-code=utf-8 --foreign-user"
+ *
+ * In this project you can go to build/ and execute "ninja example_translation-pot"
+ */
+#define _TEXT_DOMAIN "example_translation"
+
+EAPI_MAIN void
+efl_main(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
+{
+   Efl_Ui_Win *win, *box;
+
+   win = efl_add(EFL_UI_WIN_CLASS, NULL,
+                 efl_ui_win_type_set(efl_added, EFL_UI_WIN_BASIC),
+                 efl_ui_translatable_text_set(efl_added, "Translations",
+                                              _TEXT_DOMAIN),
+                 efl_ui_win_autodel_set(efl_added, EINA_TRUE));
+
+   box = efl_add(EFL_UI_BOX_CLASS, win,
+                 efl_content_set(win, efl_added));
+
+   efl_add(EFL_UI_BUTTON_CLASS, win,
+           efl_ui_translatable_text_set(efl_added, "Translations", _TEXT_DOMAIN),
+           efl_pack_end(box, efl_added));
+
+   efl_add(EFL_UI_BUTTON_CLASS, win,
+           efl_ui_translatable_text_set(efl_added, "Help", _TEXT_DOMAIN),
+           efl_pack_end(box, efl_added));
+
+   efl_add(EFL_UI_BUTTON_CLASS, win,
+           efl_ui_translatable_text_set(efl_added, "Quit", _TEXT_DOMAIN),
+           efl_pack_end(box, efl_added),
+           efl_gfx_size_hint_min_set(efl_added, EINA_SIZE2D(100, 100)));
+
+   efl_gfx_size_set(win, EINA_SIZE2D(320, 320));
+}
+EFL_MAIN()
+