Translation updates to support Transifex

 * ignore .tx folder
 * cmake: when UPDATE_TRANSLATIONS=ON, extract new strings only to the
english translation file.
 * added info in CONTRIBUTING.md
 * updated english translations

.gitignore

@@ -5,3 +5,4 @@ build*
 mysql.cnf
 .DS_Store
 .idea/
+.tx/

CONTRIBUTING.md

@@ -132,3 +132,59 @@ mutating objects.)
 
 When pointers can't be avoided, try to use a smart pointer of some sort, such
 as `QScopedPointer`, or, less preferably, `QSharedPointer`.
+
+### Translations (for developers) ###
+
+All the user-interface strings inside cockatrice's source code must be written in
+english language. Translations to other languages are managed using Transifex:
+http://www.transifex.com
+
+If you're about to propose a change that adds or modifies any translatable string
+in the code, you'll need to update the basic translation files so that translators
+are notified that new strings needs to be translated.
+To update the basic translation files, re-run cmake with enabling the appropriate
+parameter and then run make:
+
+    cd cockatrice/build
+    cmake .. -DUPDATE_TRANSLATIONS=ON
+    make
+
+If the parameter has been enabled correctly, when running "make" you should see
+a line similar to this one (the numbers may vary):
+
+    [ 76%] Generating ../../cockatrice/translations/cockatrice_en.ts
+    Updating '../../cockatrice/translations/cockatrice_en.ts'...
+    Found 857 source text(s) (8 new and 849 already existing)
+
+You should then notice that the following files have uncommitted changes:
+
+    cockatrice/translations/cockatrice_en.ts
+    oracle/translations/oracle_en.ts
+
+It's now suggested to disable the parameter using:
+
+    cmake .. -DUPDATE_TRANSLATIONS=OFF
+
+Now you are ready to propose your change. Once your change gets merged, 
+Transifex will pick up the modified files automatically (checks every 24 hours)
+and update the interface where translators will be able to translate the new
+strings.
+
+### Translations (for mantainers) ###
+
+Before rushing out a new release, it would be nice to fetch the most up to date
+translations from Transifer and commit them in the cockatrice source code.
+This can be done manually from the Transifex we interface, but it's quite time
+expensive.
+
+As an alternative, you can install the Transifex CLI: 
+    
+    http://docs.transifex.com/developer/client/
+
+You'll then be able to use a git-like cli command to push and pull translations
+from Transifex to the source code and viceversa.
+
+### Translations (for translators) ###
+
+Please have a look at the specific FAQ:
+https://github.com/Cockatrice/Cockatrice/wiki/Translation-FAQ
\ No newline at end of file

cockatrice/CMakeLists.txt

@@ -98,12 +98,14 @@ if (UNIX AND NOT APPLE)
 endif (UNIX AND NOT APPLE)
 
 set(cockatrice_RESOURCES cockatrice.qrc)
-FILE(GLOB cockatrice_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/*.ts")
 
 IF(UPDATE_TRANSLATIONS)
     FILE(GLOB_RECURSE translate_cockatrice_SRCS ${CMAKE_SOURCE_DIR}/cockatrice/src/*.cpp ${CMAKE_SOURCE_DIR}/cockatrice/src/*.h)
     FILE(GLOB_RECURSE translate_common_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/common/*.cpp ${CMAKE_CURRENT_SOURCE_DIR}/common/*.h)
     SET(translate_SRCS ${translate_cockatrice_SRCS} ${translate_common_SRCS})
+    SET(cockatrice_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/cockatrice_en.ts")
+ELSE()
+    FILE(GLOB cockatrice_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/*.ts")
 ENDIF(UPDATE_TRANSLATIONS)
 
 if(WIN32)

oracle/CMakeLists.txt

@@ -23,11 +23,13 @@ if (UNIX AND NOT APPLE)
 endif (UNIX AND NOT APPLE)
 
 set(oracle_RESOURCES oracle.qrc)
-FILE(GLOB oracle_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/*.ts")
 
 IF(UPDATE_TRANSLATIONS)
     FILE(GLOB_RECURSE translate_oracle_SRCS ${CMAKE_SOURCE_DIR}/oracle/src/*.cpp ${CMAKE_SOURCE_DIR}/oracle/src/*.h)
     SET(translate_SRCS ${translate_oracle_SRCS})
+    SET(oracle_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/oracle_en.ts")
+ELSE()
+    FILE(GLOB oracle_TS "${CMAKE_CURRENT_SOURCE_DIR}/translations/*.ts")
 ENDIF(UPDATE_TRANSLATIONS)
 
 if(WIN32)