list(APPEND DESIGNER_INCLUDES
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_config_widget.h
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_frame.h
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_manager.h
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_widget.h
)

list(APPEND DESIGNER_SOURCES
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_config_widget.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_frame.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_manager.cpp
   ${CMAKE_CURRENT_SOURCE_DIR}/preview/preview_widget.cpp
)
