1 files changed, 52 insertions, 0 deletions
diff --git a/prev/uitask_unix.go b/prev/uitask_unix.go
new file mode 100644
index 0000000..136d609
--- /dev/null
+++ b/prev/uitask_unix.go
@@ -0,0 +1,52 @@
+// +build !windows,!darwin
+
+// 7 july 2014
+
+package ui
+
+import (
+	"fmt"
+	"unsafe"
+)
+
+// #cgo pkg-config: gtk+-3.0
+// #cgo CFLAGS: --std=c99
+// #include "gtk_unix.h"
+// extern gboolean xdoissue(gpointer data);
+import "C"
+
+func uiinit() error {
+	var err *C.GError = nil // redundant in Go, but let's explicitly assign it anyway
+
+	// gtk_init_with_args() gives us error info (thanks chpe in irc.gimp.net/#gtk+)
+	// don't worry about GTK+'s command-line arguments; they're also available as environment variables (thanks mclasen in irc.gimp.net/#gtk+)
+	result := C.gtk_init_with_args(nil, nil, nil, nil, nil, &err)
+	if result == C.FALSE {
+		return fmt.Errorf("error actually initilaizing GTK+: %s", fromgstr(err.message))
+	}
+	return nil
+}
+
+func uimsgloop() {
+	C.gtk_main()
+}
+
+func uistop() {
+	C.gtk_main_quit()
+}
+
+func issue(f *func()) {
+	C.gdk_threads_add_idle(C.GSourceFunc(C.xdoissue), C.gpointer(unsafe.Pointer(f)))
+}
+
+//export xdoissue
+func xdoissue(data C.gpointer) C.gboolean {
+	perform(unsafe.Pointer(data))
+	return C.FALSE // don't repeat
+}
+
+//export doissue
+func doissue(data unsafe.Pointer) {
+	// for the modal queue functions
+	perform(data)
+}