mdw@git.distorted.org.uk Git - clg/blob - gtk/gtkcontainer.lisp

   1 ;; Common Lisp bindings for GTK+ v2.0
   2 ;; Copyright (C) 2000 Espen S. Johnsen <espejohn@online.no>
   3 ;;
   4 ;; This library is free software; you can redistribute it and/or
   5 ;; modify it under the terms of the GNU Lesser General Public
   6 ;; License as published by the Free Software Foundation; either
   7 ;; version 2 of the License, or (at your option) any later version.
   8 ;;
   9 ;; This library is distributed in the hope that it will be useful,
  10 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 ;; Lesser General Public License for more details.
  13 ;;
  14 ;; You should have received a copy of the GNU Lesser General Public
  15 ;; License along with this library; if not, write to the Free Software
  16 ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17
  18 ;; $Id: gtkcontainer.lisp,v 1.2 2000-10-05 17:21:04 espen Exp $
  19
  20 (in-package "GTK")
  21
  22
  23 (defmethod initialize-instance ((container container) &rest initargs
  24                                 &key children)
  25   (declare (ignore initargs))
  26   (call-next-method)
  27   (dolist (child children)
  28     (cond
  29      ((consp child)
  30       (container-add container (first child))
  31       (setf
  32        (slot-value (first child) 'child-slots)
  33        (apply
  34         #'make-instance
  35         (slot-value (class-of container) 'child-class)
  36         :parent container :child (first child) (cdr child))))
  37      (t
  38       (container-add container child)))))
  39
  40
  41
  42 (define-foreign ("gtk_container_child_getv" container-child-get-arg) () nil
  43   (container container)
  44   (child widget)
  45   (1 unsigned-int)
  46   (arg arg))
  47
  48 (define-foreign ("gtk_container_child_setv" container-child-set-arg) () nil
  49   (container container)
  50   (child widget)
  51   (1 unsigned-int)
  52   (arg arg))
  53
  54 (defun container-child-arg (container child name)
  55   (with-gc-disabled
  56     (let ((arg (arg-new 0)))
  57       (setf (arg-name arg) name)
  58       (container-child-get-arg container child arg) ; probably memory leak
  59       (let ((type (type-from-number (arg-type arg))))
  60         (prog1
  61             (arg-value arg type)
  62           (arg-free arg nil))))))
  63
  64 (defun (setf container-child-arg) (value container child name)
  65   (with-gc-disabled
  66     (let ((arg (arg-new 0)))
  67       (setf (arg-name arg) name)
  68       (container-child-get-arg container child arg) ; probably memory leak
  69       (let ((type (type-from-number (arg-type arg))))
  70         (setf (arg-value arg type) value)
  71         (container-child-set-arg container child arg)
  72         (arg-free arg nil))))
  73   value)
  74
  75
  76 (define-foreign container-add () nil
  77   (container container)
  78   (widget widget))
  79
  80 (define-foreign container-remove () nil
  81   (container container)
  82   (widget widget))
  83
  84 (define-foreign container-check-resize () nil
  85   (container container))
  86
  87 (define-foreign ("gtk_container_foreach_full" %container-foreach)
  88     (container function) nil
  89   (container container)
  90   (0 unsigned-long)
  91   (*callback-marshal* pointer)
  92   ((register-callback-function function) unsigned-long)
  93   (*destroy-marshal* pointer))
  94
  95 (defun map-container (seqtype func container)
  96   (case seqtype
  97     ((nil)
  98      (%container-foreach container func)
  99      nil)
 100     (list
 101      (let ((list nil))
 102        (%container-foreach
 103         container
 104         #'(lambda (child)
 105             (push (funcall func child) list)))
 106        (nreverse list)))
 107     (t
 108      (let ((seq (make-sequence seqtype (container-num-children container)))
 109            (index 0))
 110        (%container-foreach
 111         container
 112         #'(lambda (child)
 113             (setf (elt seq index) (funcall func child))
 114             (incf index)))
 115        seq))))
 116
 117 (defmacro do-container ((var container &optional (result nil)) &body body)
 118   (let ((continue (make-symbol "CONTINUE")))
 119     `(let ((,continue t))
 120        (%container-foreach
 121         ,container
 122         #'(lambda (,var)
 123             (when ,continue
 124               (setq ,continue nil)
 125               (block nil
 126                 ,@body
 127                 (setq ,continue t)))))
 128        ,result)))
 129
 130 (define-foreign container-children () (glist widget)
 131   (container container))
 132
 133 (defun (setf container-children) (children container)
 134   (dolist (child (container-children container))
 135     (container-remove container child))
 136   (dolist (child children)
 137     (container-add container child))
 138   children)
 139
 140 ;; Should be implemented as a foreign function
 141 (defun container-num-children (container)
 142   (length (container-children container)))
 143
 144 (define-foreign container-resize-children () nil
 145   (container container))