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 <esj@stud.cs.uit.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 1.10 2004-11-01 00:08:50 espen Exp $
  19
  20 (in-package "GTK")
  21
  22 (defmethod shared-initialize ((container container) names &rest initargs
  23                               &key child children child-args)
  24   (declare (ignore child))
  25   (call-next-method)
  26   (dolist (child (append children (get-all initargs :child)))
  27     (apply #'container-add container (append (mklist child) child-args))))
  28
  29
  30 (defbinding %container-add () nil
  31   (container container)
  32   (widget widget))
  33
  34 (defmethod container-add ((container container) (widget widget) &rest args)
  35   (%container-add container widget)
  36   (when args
  37     (setf
  38      (slot-value widget 'child-slots)
  39      (apply
  40       #'make-instance
  41       (gethash (class-of container) *container-to-child-class-mappings*)
  42       :parent container :child widget args))))
  43
  44
  45 (defbinding %container-remove () nil
  46   (container container)
  47   (widget widget))
  48
  49 (defmethod container-remove ((container container) (widget widget))
  50   (%container-remove container widget)
  51   (slot-makunbound widget 'child-slots))
  52
  53
  54 (defbinding %container-child-get-property () nil
  55   (container container)
  56   (child widget)
  57   (property-name string)
  58   (value gvalue))
  59
  60 (defbinding %container-child-set-property () nil
  61   (container container)
  62   (child widget)
  63   (property-name string)
  64   (value gvalue))
  65
  66
  67 (defbinding container-check-resize () nil
  68   (container container))
  69
  70 (def-callback %foreach-callback (c-call:void (widget system-area-pointer)
  71                                             (callback-id c-call:unsigned-int))
  72   (invoke-callback callback-id nil (ensure-proxy-instance 'widget widget nil)))
  73
  74 (defbinding %container-foreach (container callback-id) nil
  75   (container container)
  76   ((callback %foreach-callback) pointer)
  77   (callback-id unsigned-int))
  78
  79 (defun container-foreach (container function)
  80   (let ((callback-id (register-callback-function function)))
  81     (unwind-protect
  82         (%container-foreach container callback-id)
  83       (destroy-user-data callback-id))))
  84
  85 (defun map-container (seqtype func container)
  86   (case seqtype
  87     ((nil)
  88      (container-foreach container func)
  89      nil)
  90     (list
  91      (let ((list nil))
  92        (container-foreach
  93         container
  94         #'(lambda (child)
  95             (push (funcall func child) list)))
  96        (nreverse list)))
  97     (t
  98      (let ((seq (make-sequence seqtype (container-length container)))
  99            (index 0))
 100        (container-foreach
 101         container
 102         #'(lambda (child)
 103             (setf (elt seq index) (funcall func child))
 104             (incf index)))
 105        seq))))
 106
 107 (defmacro do-container ((var container &optional (result nil)) &body body)
 108   (let ((continue (make-symbol "CONTINUE")))
 109     `(let ((,continue t))
 110        (container-foreach
 111         ,container
 112         #'(lambda (,var)
 113             (when ,continue
 114               (setq ,continue nil)
 115               (block nil
 116                 ,@body
 117                 (setq ,continue t)))))
 118        ,result)))
 119
 120 ;; (defbinding %container-get-children () (glist widget)
 121 ;;   (container container))
 122
 123 (defmethod container-children ((container container))
 124 ;;   (%container-get-children container)
 125   (map-container 'list #'identity container))
 126
 127 (defmethod (setf container-children) (children (container container))
 128   (dolist (child (container-children container))
 129     (container-remove container child))
 130   (dolist (child children)
 131     (container-add container child))
 132   children)
 133
 134 (defun container-length (container)
 135   (let ((n 0))
 136     (container-foreach container
 137      #'(lambda (child)
 138          (declare (ignore child))
 139          (incf n)))
 140     n))
 141
 142 (defbinding container-resize-children () nil
 143   (container container))
 144
 145 (defbinding container-propagate-expose () nil
 146   (container container)
 147   (child widget)
 148   (event gdk:expose-event))
 149
 150
 151 (defbinding %container-get-focus-chain () boolean
 152   (container container)
 153   (focusable-widgets (glist widget) :out))
 154
 155 (defun container-focus-chain (container)
 156   (multiple-value-bind (chain-set-p focusable-widgets)
 157       (%container-get-focus-chain container)
 158     (and chain-set-p focusable-widgets)))
 159
 160 (defbinding %container-set-focus-chain () nil
 161   (container container)
 162   (focusable-widgets (glist widget)))
 163
 164 (defbinding %container-unset-focus-chain () nil
 165   (container container))
 166
 167 (defun (setf container-focus-chain) (focusable-widgets container)
 168   (if (null focusable-widgets)
 169       (%container-unset-focus-chain container)
 170     (%container-set-focus-chain container focusable-widgets)))