andlabs-ui/prev/uitask_unix.go

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// +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()
}
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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)
}