ship the translations within the binary

build qm-files for translation

create resource file for translations, contains german translations, for now.

this is some kind of hack to make it work. rcc doesn’t allow
out-of-source builds, so the commands need to be specified by hand, to
copy things around between source and binary directories.

lang/tomahawk_i18n.qrc

@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/lang">
+<file>tomahawk_de.qm</file>
+</qresource>
+</RCC>

lang/translations.cmake

@@ -0,0 +1,25 @@
+FILE (GLOB TS_FILES ${CMAKE_SOURCE_DIR}/lang/*.ts)
+QT4_ADD_TRANSLATION(QM_FILES ${TS_FILES})
+
+## HACK HACK HACK - around rcc limitations to allow out of source-tree building
+SET( trans_file tomahawk_i18n )
+SET( trans_srcfile ${CMAKE_SOURCE_DIR}/lang/${trans_file}.qrc)
+SET( trans_infile ${CMAKE_CURRENT_BINARY_DIR}/${trans_file}.qrc)
+SET( trans_outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${trans_file}.cxx)
+
+# Copy the QRC file to the output directory
+ADD_CUSTOM_COMMAND(
+  OUTPUT ${trans_infile}
+  COMMAND ${CMAKE_COMMAND} -E copy ${trans_srcfile} ${trans_infile}
+  MAIN_DEPENDENCY ${trans_srcfile}
+)
+
+# Run the resource compiler (rcc_options should already be set)
+ADD_CUSTOM_COMMAND(
+  OUTPUT ${trans_outfile}
+  COMMAND ${QT_RCC_EXECUTABLE}
+  ARGS ${rcc_options} -name ${trans_file} -o ${trans_outfile} ${trans_infile}
+  MAIN_DEPENDENCY ${trans_infile}
+  DEPENDS ${QM_FILES}
+)
+

src/CMakeLists.txt

@@ -186,7 +186,9 @@ qt4_wrap_cpp( tomahawkMoc ${tomahawkHeaders} )
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
                ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
-SET( final_src ${final_src} ${tomahawkMoc} ${tomahawkSources} ${tomahawkHeaders} )
+include( ${CMAKE_SOURCE_DIR}/lang/translations.cmake )
+
+SET( final_src ${final_src} ${tomahawkMoc} ${tomahawkSources} ${tomahawkHeaders} ${trans_outfile})
 
 IF( "${gui}" STREQUAL "no" )
 ELSE()