Fixing issues with i18n stuff:

- Make gettext stuff draw-time. so switching between languages
  can happens without restart now.
- Added option to translate visible interface (menus, buttons, labels)
  and tooltips. Now it's possible to have english UI and localized tooltips.
- Clean-up sources, do not use gettext stuff for things which can be
  collected with RNA.
- Fix issues with windows 64bit and ru_RU locale on my desktop
  (it was codepage issue).
- Added operator "Get Messages" which generates new text block with
  with all strings collected from RNA.
- Changed script for updating blender.pot so now it appends
  messages collected from rna to automatically gathered messages.
  To update .pot you have to re-generate messages.txt using "Get Messages"
  operator and then run update_pot script.
- Clean up old translation stuff which wasn't used and most probably
  wouldn't be used.
- Return back "International Fonts" option, so if it's disabled, no
  gettext lookups happens on draw.
- Merged read_homefile function back. No need in splitting it.

TODO:
- Custom fonts and font size.
  Current font isn't nice at least for russian locale, it's
  difficult to read it.
- Put references to messages.txt so gettext can merge translation when
  name/description of some property changes.

2 files changed, 21 insertions, 23 deletions

diff --git a/source/blender/editors/space_buttons/buttons_header.c b/source/blender/editors/space_buttons/buttons_header.c
index 831461e4b82..4c137c6d886 100644
--- a/source/blender/editors/space_buttons/buttons_header.c
+++ b/source/blender/editors/space_buttons/buttons_header.c
@@ -125,24 +125,24 @@ void buttons_header_buttons(const bContext *C, ARegion *ar)
 
 #define BUTTON_HEADER_CTX(_ctx, _icon, _tip) \
 	if(sbuts->pathflag & (1<<_ctx)) { \
-		but= uiDefIconButS(block, ROW, B_CONTEXT_SWITCH, _icon, xco+=BUT_UNIT_X, yco, BUT_UNIT_X, UI_UNIT_Y, &(sbuts->mainb), 0.0, (float)_ctx, 0, 0, _tip); \
+		but= uiDefIconButS(block, ROW, B_CONTEXT_SWITCH, _icon, xco+=BUT_UNIT_X, yco, BUT_UNIT_X, UI_UNIT_Y, &(sbuts->mainb), 0.0, (float)_ctx, 0, 0, \
+			((U.transopts&USER_DOTRANSLATE) && (U.transopts&USER_TR_TOOLTIPS)) ? BLF_gettext(_tip) : _tip); \
 		uiButClearFlag(but, UI_BUT_UNDO); \
 	} \
 
-
-	BUTTON_HEADER_CTX(BCONTEXT_RENDER, ICON_SCENE, _("Render"))
-	BUTTON_HEADER_CTX(BCONTEXT_SCENE, ICON_SCENE_DATA, _("Scene"));
-	BUTTON_HEADER_CTX(BCONTEXT_WORLD, ICON_WORLD, _("World"));
-	BUTTON_HEADER_CTX(BCONTEXT_OBJECT, ICON_OBJECT_DATA, _("Object"));
-	BUTTON_HEADER_CTX(BCONTEXT_CONSTRAINT, ICON_CONSTRAINT, _("Object Constraints"));
-	BUTTON_HEADER_CTX(BCONTEXT_MODIFIER, ICON_MODIFIER, _("Object Modifiers"));
-	BUTTON_HEADER_CTX(BCONTEXT_DATA, sbuts->dataicon, _("Object Data"));
-	BUTTON_HEADER_CTX(BCONTEXT_BONE, ICON_BONE_DATA, _("Bone"));
-	BUTTON_HEADER_CTX(BCONTEXT_BONE_CONSTRAINT, ICON_CONSTRAINT_BONE, _("Bone Constraints"));
-	BUTTON_HEADER_CTX(BCONTEXT_MATERIAL, ICON_MATERIAL, _("Material"));
-	BUTTON_HEADER_CTX(BCONTEXT_TEXTURE, ICON_TEXTURE, _("Textures"));
-	BUTTON_HEADER_CTX(BCONTEXT_PARTICLE, ICON_PARTICLES, _("Particles"));
-	BUTTON_HEADER_CTX(BCONTEXT_PHYSICS, ICON_PHYSICS, _("Physics"));
+	BUTTON_HEADER_CTX(BCONTEXT_RENDER, ICON_SCENE, N_("Render"))
+	BUTTON_HEADER_CTX(BCONTEXT_SCENE, ICON_SCENE_DATA, N_("Scene"));
+	BUTTON_HEADER_CTX(BCONTEXT_WORLD, ICON_WORLD, N_("World"));
+	BUTTON_HEADER_CTX(BCONTEXT_OBJECT, ICON_OBJECT_DATA, N_("Object"));
+	BUTTON_HEADER_CTX(BCONTEXT_CONSTRAINT, ICON_CONSTRAINT, N_("Object Constraints"));
+	BUTTON_HEADER_CTX(BCONTEXT_MODIFIER, ICON_MODIFIER, N_("Object Modifiers"));
+	BUTTON_HEADER_CTX(BCONTEXT_DATA, sbuts->dataicon, N_("Object Data"));
+	BUTTON_HEADER_CTX(BCONTEXT_BONE, ICON_BONE_DATA, N_("Bone"));
+	BUTTON_HEADER_CTX(BCONTEXT_BONE_CONSTRAINT, ICON_CONSTRAINT_BONE, N_("Bone Constraints"));
+	BUTTON_HEADER_CTX(BCONTEXT_MATERIAL, ICON_MATERIAL, N_("Material"));
+	BUTTON_HEADER_CTX(BCONTEXT_TEXTURE, ICON_TEXTURE, N_("Textures"));
+	BUTTON_HEADER_CTX(BCONTEXT_PARTICLE, ICON_PARTICLES, N_("Particles"));
+	BUTTON_HEADER_CTX(BCONTEXT_PHYSICS, ICON_PHYSICS, N_("Physics"));
 
 #undef BUTTON_HEADER_CTX
 
diff --git a/source/blender/editors/space_buttons/buttons_ops.c b/source/blender/editors/space_buttons/buttons_ops.c
index 346531b2b11..99e5c6d693e 100644
--- a/source/blender/editors/space_buttons/buttons_ops.c
+++ b/source/blender/editors/space_buttons/buttons_ops.c
@@ -43,8 +43,6 @@
 #include "BLI_string.h"
 #include "BLI_utildefines.h"
 
-#include "BLF_api.h"
-
 #include "BKE_context.h"
 #include "BKE_global.h"
 #include "BKE_main.h"
@@ -85,8 +83,8 @@ static int toolbox_invoke(bContext *C, wmOperator *UNUSED(op), wmEvent *UNUSED(e
 void BUTTONS_OT_toolbox(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name= _("Toolbox");
-	ot->description=_("Display button panel toolbox");
+	ot->name= "Toolbox";
+	ot->description="Display button panel toolbox";
 	ot->idname= "BUTTONS_OT_toolbox";
 	
 	/* api callbacks */
@@ -218,8 +216,8 @@ static int file_browse_invoke(bContext *C, wmOperator *op, wmEvent *event)
 void BUTTONS_OT_file_browse(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name= _("Accept");
-	ot->description=_("Open a file browser, Hold Shift to open the file, Alt to browse containing directory");
+	ot->name= "Accept";
+	ot->description="Open a file browser, Hold Shift to open the file, Alt to browse containing directory";
 	ot->idname= "BUTTONS_OT_file_browse";
 	
 	/* api callbacks */
@@ -235,8 +233,8 @@ void BUTTONS_OT_file_browse(wmOperatorType *ot)
 void BUTTONS_OT_directory_browse(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name= _("Accept");
-	ot->description=_("Open a directory browser, Hold Shift to open the file, Alt to browse containing directory");
+	ot->name= "Accept";
+	ot->description="Open a directory browser, Hold Shift to open the file, Alt to browse containing directory";
 	ot->idname= "BUTTONS_OT_directory_browse";
 
 	/* api callbacks */