Install Linux desktop entry and icons for kge

CMakeLists.txt

@@ -509,6 +509,25 @@ if (BUILD_GUI)
     # Install kge man page only when GUI is built
     install(FILES docs/kge.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
     install(FILES kge.png DESTINATION ${CMAKE_INSTALL_PREFIX}/share/icons)
+    if (UNIX AND NOT APPLE)
+        install(FILES kge.desktop DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications)
+        install(FILES kge.png DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pixmaps)
+        install(FILES kge.iconset/icon_16x16.png
+                DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/16x16/apps
+                RENAME kge.png)
+        install(FILES kge.iconset/icon_32x32.png
+                DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/32x32/apps
+                RENAME kge.png)
+        install(FILES kge.iconset/icon_128x128.png
+                DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/128x128/apps
+                RENAME kge.png)
+        install(FILES kge.iconset/icon_256x256.png
+                DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/256x256/apps
+                RENAME kge.png)
+        install(FILES kge.iconset/icon_512x512.png
+                DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/icons/hicolor/512x512/apps
+                RENAME kge.png)
+    endif ()
 
     # Optional post-build bundle fixup (can also be run from scripts).
     # This provides a CMake target to run BundleUtilities' fixup_bundle on the

kge.desktop

@@ -0,0 +1,14 @@
+[Desktop Entry]
+Type=Application
+Name=kge
+GenericName=Text Editor
+Comment=kyle's graphical text editor
+Exec=/usr/local/bin/kge %F
+TryExec=/usr/local/bin/kge
+Icon=kge
+Terminal=false
+StartupNotify=true
+StartupWMClass=kge
+Categories=Utility;TextEditor;
+MimeType=text/plain;text/x-c;text/x-c++;text/x-python;text/x-go;text/x-rust;application/json;text/markdown;text/x-shellscript;
+Keywords=text;editor;code;