[CMake] Location of ui and moc generated files (qt)

[Torsten Martinsen]

Maik Keller <> wrote:

> Hi Alex,
> 
> I prefer to use the class, which is contained in the automatically
> generated ui-header file, as a base class for an extended
> implementation of the widget. Therefore I have to include the header
> of that class. So it would be nice to locate the base class in the
> same directory like the derived class (somewhere in my sources - and
> not in the build-directory).     
> 
> In case of the moc-file it is not that important. But it would be
> also nice to have the location under the control of the user. 
> 
> Would there be a possibility to use cmake's "ADD_CUSTOM_COMMAND"? I
> appreciate any help of defining such custom commands for ui and moc
> files. I tried it on my own, but I failed...  

As a reference point, here is the macro I use:

# Run Qt UIC on a UI file.
# Arguments:
#    1-N   Names of .ui files
MACRO(AIS_UI)
   FOREACH (it ${ARGN})
      GET_FILENAME_COMPONENT(outfile ${it} NAME_WE)
      SET(outhfile ${CMAKE_CURRENT_BINARY_DIR}/${outfile}.h)
      SET(outcppfile ${CMAKE_CURRENT_BINARY_DIR}/${outfile}_uic.cpp)
      ADD_CUSTOM_COMMAND(OUTPUT ${outhfile}
         COMMAND ${QT_UIC_EXECUTABLE} ARGS -o ${outhfile}
${CMAKE_CURRENT_SOURCE_DIR}/${it}
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
         MAIN_DEPENDENCY ${it}
         DEPENDS ${it}
      )
      ADD_CUSTOM_COMMAND(OUTPUT ${outcppfile}
         COMMAND ${QT_UIC_EXECUTABLE} ARGS
${CMAKE_CURRENT_SOURCE_DIR}/${it} -impl ${outhfile} -o ${outcppfile}
	 WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
         MAIN_DEPENDENCY ${it}
	 DEPENDS ${it} ${outhfile})
	SET(CPP_SOURCE ${CPP_SOURCE} ${outcppfile})
      AIS_MOC(${outhfile})

      SET(AIS_UIC_SOURCES ${AIS_UIC_SOURCES} ${outcppfile})
      LIST(APPEND AIS_UIC_HEADERS ${outhfile})
   ENDFOREACH (it)
ENDMACRO(AIS_UI)

Note that this also generates the header file out-of-source - therefore
I have this line in another macro:

   INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})

(This macro is used in all my projects).

-Torsten

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