VTK/Tutorials/CMakeListsFileForQt4

CMakeLists.txt

<source lang=cmake> project(application)

cmake_minimum_required(VERSION 2.8.0)

find_package(VTK REQUIRED) include(${VTK_USE_FILE})

find_package(Qt4 REQUIRED) include(${QT_USE_FILE})

1. support for out-of-source build

INCLUDE_DIRECTORIES(

 ${CMAKE_CURRENT_BINARY_DIR}
 ${CMAKE_CURRENT_SOURCE_DIR}

)

set(SRC

   optionsDialog.h optionsDialog.cpp
   main.cpp
   mainwindow.h mainwindow.cpp
   application.qrc

)

set(MOC optionsDialog.h mainwindow.h ) set(UI optionsDialog.ui mainwindow.ui) set(RCC application.qrc )

qt4_wrap_cpp(MOC_GENERATED ${MOC}) qt4_wrap_ui(UI_GENERATED ${UI}) qt4_add_resources(RCC_GENERATED ${RCC})

source_group("Form Files" FILES ${UI} ) source_group("Resource Files" FILES ${RCC} ) source_group("Generated Files" FILES ${MOC_GENERATED} ${UI_GENERATED} ${RCC_GENERATED} )

add_executable(application

   ${SRC}
   ${MOC_GENERATED}   ${UI_GENERATED}  ${RCC_GENERATED} )

target_link_libraries(application ${QT_LIBRARIES} QVTK )

</source>

Here is the descriptions for selected lines:

Make cmake to find VTK and Qt4 library and include UseVTK.cmake and UseQt4.cmake, where useful settings are defined. <source lang=cmake> find_package(VTK REQUIRED) include(${VTK_USE_FILE})

find_package(Qt4 REQUIRED) include(${QT_USE_FILE}) </source>

Tell cmake to include additional header directories for out-of-sorce build <source lang=cmake>

1. support for out-of-source build

INCLUDE_DIRECTORIES(

 ${CMAKE_CURRENT_BINARY_DIR}
 ${CMAKE_CURRENT_SOURCE_DIR}

) </source>

Make cmake to define SRC for all source files, MOC for meta-compiling (class with Q_OBJECT), UI for form files,RCC for resource files.

<source lang=cmake> set(SRC

   optionsDialog.h optionsDialog.cpp
   main.cpp
   mainwindow.h mainwindow.cpp
   application.qrc

)

set(MOC optionsDialog.h mainwindow.h ) set(UI optionsDialog.ui mainwindow.ui) set(RCC application.qrc ) </source>

Setting up for Qt preprocessing : moc.exe, ui.exe, rcc.exe <source lang=cmake> qt4_wrap_cpp(MOC_GENERATED ${MOC}) qt4_wrap_ui(UI_GENERATED ${UI}) qt4_add_resources(RCC_GENERATED ${RCC}) </source>

Assign filters. Optional, but useful. <source lang=cmake> source_group("Form Files" FILES ${UI} ) source_group("Resource Files" FILES ${RCC} ) source_group("Generated Files" FILES ${MOC_GENERATED} ${UI_GENERATED} ${RCC_GENERATED} ) </source>

Tell cmake the project "application"'s source files include all generated files and required libaries.

<source lang=cmake> add_executable(application WIN32

   ${SRC}
   ${MOC_GENERATED}   ${UI_GENERATED}  ${RCC_GENERATED} )

target_link_libraries(application ${QT_LIBRARIES} QVTK ) </source>

In MSVC, WIN32 and $(QT_QTMAIN_LIBRARY} are required to remove dummy console window, as follows:

<source lang=cmake> add_executable(application WIN32

   ${SRC}
   ${MOC_GENERATED}   ${UI_GENERATED}  ${RCC_GENERATED} )

target_link_libraries(application ${QT_LIBRARIES} ${QT_QTMAIN_LIBRARY} QVTK ) </source>