Desktop icon and menu entry when install on Linux

CMakeLists.txt

@@ -47,3 +47,8 @@ find_path(FITS_INCLUDE fitsio2.h PATH_SUFFIXES cfitsio REQUIRED)
 target_include_directories(tenmon PRIVATE ${OpenCV_INCLUDE_DIRS} ${FITS_INCLUDE})
 
 target_link_libraries(tenmon Qt5::Widgets Qt5::Sql Qt5::OpenGL ${OpenCV_LIBS} ${GSL_LIB} ${EXIF_LIB} ${FITS_LIB} ${RAW_LIB})
+
+install(TARGETS tenmon)
+if(UNIX)
+    install(SCRIPT install.cmake)
+endif(UNIX)

install.cmake

@@ -0,0 +1,4 @@
+find_program(XDG-DESKTOP-MENU_EXECUTABLE xdg-desktop-menu)
+find_program(XDG-ICON-RESOURCE_EXECUTABLE xdg-icon-resource)
+execute_process(COMMAND ${XDG-DESKTOP-MENU_EXECUTABLE} install --novendor org.nou.tenmon.desktop WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+execute_process(COMMAND ${XDG-ICON-RESOURCE_EXECUTABLE} install --novendor --size 32 icon.png org.nou.tenmon WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})

org.nou.tenmon.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Exec=tenmon %U
+Icon=org.nou.tenmon
+Comment=FITS Image viewer
+Name=Tenmon
+Categories=Graphics;2DGraphics;RasterGraphics;Viewer;
+MimeType=image/fits;
+Terminal=false

tenmon.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Exec=Tenmon %U
+Icon=org.nou.tenmon
+Comment=FITS Image viewer
+Name=Tenmon
+Categories=Graphics;2DGraphics;RasterGraphics;Viewer;
+MimeType=image/fits;
+Terminal=false