diff --git a/ffitest/gtknew.janet b/ffitest/gtknew.janet new file mode 100644 index 00000000..358d4f35 --- /dev/null +++ b/ffitest/gtknew.janet @@ -0,0 +1,52 @@ +(ffi/context "/usr/lib/libgtk-3.so") + +(ffi/defbind + gtk-application-new :ptr + "Add docstrings as needed." + [a :ptr b :uint]) + +(ffi/defbind + g-signal-connect-data :ulong + [a :ptr b :ptr c :ptr d :ptr e :ptr f :int]) + +(ffi/defbind + g-application-run :int + [a :ptr b :int c :ptr]) + +(ffi/defbind + gtk-application-window-new :ptr + [a :ptr]) + +(ffi/defbind + gtk-button-new-with-label :ptr + [a :ptr]) + +(ffi/defbind + gtk-container-add :void + [a :ptr b :ptr]) + +(ffi/defbind + gtk-widget-show-all :void + [a :ptr]) + +(ffi/defbind + gtk-button-set-label :void + [a :ptr b :ptr]) + +(def cb (ffi/trampoline :default)) + +(defn on-active + [app] + (def window (gtk-application-window-new app)) + (def btn (gtk-button-new-with-label "Click Me!")) + (g-signal-connect-data btn "clicked" cb + (fn [btn] (gtk-button-set-label btn "Hello World")) + nil 1) + (gtk-container-add window btn) + (gtk-widget-show-all window)) + +(defn main + [&] + (def app (gtk-application-new "org.janet-lang.example.HelloApp" 0)) + (g-signal-connect-data app "activate" cb on-active nil 1) + (g-application-run app 0 nil)) diff --git a/src/boot/boot.janet b/src/boot/boot.janet index 0b28cc91..e886746b 100644 --- a/src/boot/boot.janet +++ b/src/boot/boot.janet @@ -3608,6 +3608,46 @@ (ev/call (fn [] (net/accept-loop s handler)))) s)) +### +### +### FFI Extra +### +### + +(compwhen (dyn 'ffi/native) + + (defdyn *ffi-context*" Current native library for ffi/bind and other settings") + + (defn- default-mangle + [name &] + (string/replace-all "-" "_" name)) + + (defn ffi/context + "Set the path of the dynamic library to implictly bind, as well + as other global state for ease of creating native bindings." + [native-path &named map-symbols] + (def lib (ffi/native native-path)) + (default map-symbols default-mangle) + (setdyn *ffi-context* + {:native lib + :map-symbols map-symbols})) + + (defmacro ffi/defbind + "Generate bindings for native functions in a convenient manner." + [name ret-type & body] + (def meta (slice body 0 -2)) + (def arg-pairs (partition 2 (last body))) + (def formal-args (map 0 arg-pairs)) + (def type-args (map 1 arg-pairs)) + (def ctx (dyn *ffi-context*)) + (def raw-symbol ((get ctx :map-symbols default-mangle) name)) + (def ffi-mod (get ctx :native)) + (def ptr (assert (ffi/lookup ffi-mod raw-symbol) "failed to find symbol")) + (def computed-type-args (eval ~[,;type-args])) + (def sig (ffi/signature :default ret-type ;computed-type-args)) + ~(defn ,name ,;meta [,;formal-args] + (,ffi/call ,ptr ,sig ,;formal-args)))) + ### ### ### Flychecking