gtk/gtk.main_loop_events.lisp

   1 (in-package :gtk)
   2
   3 (defcfun gtk-init-check :boolean
   4   (argc (:pointer :int))
   5   (argv (:pointer (:pointer :string))))
   6
   7 (defun gtk-init ()
   8   (gtk-init-check (foreign-alloc :int :initial-element 0)
   9                   (foreign-alloc :string :initial-contents '("/usr/bin/sbcl")))
  10   #+nil(with-foreign-objects ((argc :int)
  11                          (argv '(:pointer :string) 1))
  12     (setf (mem-ref argc :int) 0
  13           (mem-ref argv '(:pointer :string)) (foreign-alloc :string :count 1
  14                                                             :initial-element "/usr/bin/sbcl"))
  15     (unwind-protect
  16          (unless (gtk-init-check argc argv)
  17            (error "Cannot initialize Gtk+"))
  18       (foreign-free (mem-ref argv '(:pointer :string))))))
  19
  20 (at-init () (gtk-init))
  21
  22 (defcfun gtk-main :void)
  23
  24 #+thread-support
  25 (defvar *main-thread* nil)
  26
  27 #+thread-support
  28 (at-finalize ()
  29   (when (and *main-thread* (bt:thread-alive-p *main-thread*))
  30     (bt:destroy-thread *main-thread*)
  31     (setf *main-thread* nil)))
  32
  33 #+thread-support
  34 (defun ensure-gtk-main ()
  35   (when (and *main-thread* (not (bt:thread-alive-p *main-thread*)))
  36     (setf *main-thread* nil))
  37   (unless *main-thread*
  38     (setf *main-thread* (bt:make-thread (lambda () (gtk-main)) :name "cl-gtk2 main thread"))))
  39
  40 #+thread-support
  41 (defun join-main-thread ()
  42   (when *main-thread*
  43     (bt:join-thread *main-thread*)))
  44
  45 #+thread-support
  46 (export 'join-main-thread)
  47
  48 #-thread-support
  49 (defun ensure-gtk-main ()
  50   (gtk-main))
  51
  52 (export 'ensure-gtk-main)
  53
  54 #+thread-support
  55 (defun leave-gtk-main ()) ;noop on multithreading
  56
  57 #-thread-support
  58 (defun leave-gtk-main ()
  59   (gtk-main-quit))
  60
  61 (export 'leave-gtk-main)
  62
  63 (defcfun gtk-main-level :uint)
  64
  65 (defcfun gtk-main-quit :void)
  66
  67 (defcfun gtk-grab-add :void
  68   (widget g-object))
  69
  70 (defcfun gtk-grab-get-current g-object)
  71
  72 (defcfun gtk-grab-remove :void
  73   (widget g-object))