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

   1 ;; Common Lisp bindings for GTK+ v2.x
   2 ;; Copyright 2000-2005 Espen S. Johnsen <espen@users.sf.net>
   3 ;;
   4 ;; Permission is hereby granted, free of charge, to any person obtaining
   5 ;; a copy of this software and associated documentation files (the
   6 ;; "Software"), to deal in the Software without restriction, including
   7 ;; without limitation the rights to use, copy, modify, merge, publish,
   8 ;; distribute, sublicense, and/or sell copies of the Software, and to
   9 ;; permit persons to whom the Software is furnished to do so, subject to
  10 ;; the following conditions:
  11 ;;
  12 ;; The above copyright notice and this permission notice shall be
  13 ;; included in all copies or substantial portions of the Software.
  14 ;;
  15 ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  18 ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  19 ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  20 ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  21 ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 ;; $Id: gtkcontainer.lisp,v 1.23 2007-01-14 23:18:17 espen Exp $
  24
  25 (in-package "GTK")
  26
  27 (defgeneric container-add (container widget &rest args))
  28 (defgeneric container-remove (container widget))
  29 (defgeneric container-all-children (container))
  30 (defgeneric container-internal-children (container))
  31 (defgeneric (setf container-children) (children container))
  32
  33
  34 (defun initial-add (object function initargs key pkey)
  35   (loop
  36    as (initarg value . rest) = initargs then rest
  37    do (cond
  38        ((eq initarg key) (funcall function object value))
  39        ((eq initarg pkey) (mapc #'(lambda (value)
  40                                     (funcall function object value))
  41                                 value)))
  42        while rest))
  43
  44 (defun initial-apply-add (object function initargs key pkey)
  45   (initial-add object #'(lambda (object value)
  46                           (apply function object (mklist value)))
  47                initargs key pkey))
  48
  49
  50 (defmethod shared-initialize ((container container) names &rest initargs
  51                               &key child children child-args
  52                               (show-children nil show-children-p))
  53   (declare (ignore names child children))
  54   (when show-children-p
  55     (if (not show-children)
  56         (setf (user-data container 'show-recursive-p) nil)
  57       (signal-connect container 'show #'container-show-recursive
  58        :object t :remove t)))
  59
  60   (call-next-method)
  61   (initial-add container
  62    #'(lambda (container args)
  63        (apply #'container-add container (append (mklist args) child-args)))
  64    initargs :child :children))
  65
  66
  67 (defmethod compute-signal-function ((container container) signal function object args)
  68   (declare (ignore signal))
  69   (if (eq object :children)
  70       #'(lambda (&rest emission-args)
  71           (let ((all-args (nconc (rest emission-args) args)))
  72             (container-foreach container
  73              #'(lambda (child)
  74                  (apply function child all-args)))))
  75     (call-next-method)))
  76
  77
  78 (defbinding %container-add () nil
  79   (container container)
  80   (widget widget))
  81
  82 (defmethod container-add ((container container) (widget widget) &rest args)
  83   (%container-add container widget)
  84   (when args
  85     (setf
  86      (slot-value widget 'child-properties)
  87      (apply
  88       #'make-instance
  89       (gethash (class-of container) *container-to-child-class-mappings*)
  90       :parent container :child widget args))))
  91
  92 (defmethod container-add ((container container) (widgets list) &rest args)
  93   (dolist (widget widgets)
  94     (apply #'container-add container widget args)))
  95
  96 (defbinding %container-remove () nil
  97   (container container)
  98   (widget widget))
  99
 100 (defmethod container-remove ((container container) (widget widget))
 101   (%container-remove container widget)
 102   (slot-makunbound widget 'child-properties))
 103
 104
 105 (defbinding %container-child-get-property () nil
 106   (container container)
 107   (child widget)
 108   (property-name string)
 109   (value gvalue))
 110
 111 (defbinding %container-child-set-property () nil
 112   (container container)
 113   (child widget)
 114   (property-name string)
 115   (value gvalue))
 116
 117
 118 (defbinding container-check-resize () nil
 119   (container container))
 120
 121 (define-callback-marshal %foreach-callback nil (widget))
 122
 123 (defbinding %container-foreach (container callback-id) nil
 124   (container container)
 125   (%foreach-callback callback)
 126   (callback-id unsigned-int))
 127
 128 (defun container-foreach (container function)
 129   (with-callback-function (id function)
 130     (%container-foreach container id)))
 131
 132 (defbinding %container-forall (container callback-id) nil
 133   (container container)
 134   (%foreach-callback callback)
 135   (callback-id unsigned-int))
 136
 137 (defun container-forall (container function)
 138   (with-callback-function (id function)
 139     (%container-forall container id)))
 140
 141 (defun map-container (seqtype func container)
 142   (case seqtype
 143     ((nil)
 144      (container-foreach container func)
 145      nil)
 146     (list
 147      (let ((list nil))
 148        (container-foreach container
 149         #'(lambda (child)
 150             (push (funcall func child) list)))
 151        (nreverse list)))
 152     (t
 153      (let ((seq (make-sequence seqtype (container-length container)))
 154            (index 0))
 155        (container-foreach container
 156         #'(lambda (child)
 157             (setf (elt seq index) (funcall func child))
 158             (incf index)))
 159        seq))))
 160
 161 (defmethod container-all-children ((container container))
 162   (let ((internal ()))
 163     (container-forall container
 164      #'(lambda (child)
 165          (push child internal)))
 166     (nreverse internal)))
 167
 168 (defmethod container-internal-children ((container container))
 169   (let ((external-children (container-children container))
 170         (all-children (container-all-children container)))
 171     (loop
 172      for child in all-children
 173      unless (find child external-children)
 174      collect child)))
 175
 176 (defmethod (setf container-children) (children (container container))
 177   (dolist (child (container-children container))
 178     (container-remove container child))
 179   (dolist (child children)
 180     (apply #'container-add container (mklist child)))
 181   children)
 182
 183 (defun container-length (container)
 184   (let ((n 0))
 185     (container-foreach container
 186      #'(lambda (child)
 187          (declare (ignore child))
 188          (incf n)))
 189     n))
 190
 191 (defbinding container-resize-children () nil
 192   (container container))
 193
 194 (defbinding container-propagate-expose () nil
 195   (container container)
 196   (child widget)
 197   (event gdk:expose-event))
 198
 199
 200 (defbinding %container-get-focus-chain () boolean
 201   (container container)
 202   (focusable-widgets (glist widget) :out))
 203
 204 (defun container-focus-chain (container)
 205   (multiple-value-bind (chain-set-p focusable-widgets)
 206       (%container-get-focus-chain container)
 207     (and chain-set-p focusable-widgets)))
 208
 209 (defbinding %container-set-focus-chain () nil
 210   (container container)
 211   (focusable-widgets (glist widget)))
 212
 213 (defbinding %container-unset-focus-chain () nil
 214   (container container))
 215
 216 (defun (setf container-focus-chain) (focusable-widgets container)
 217   (if (null focusable-widgets)
 218       (%container-unset-focus-chain container)
 219     (%container-set-focus-chain container focusable-widgets)))
 220
 221 (defgeneric container-show-recursive (container))
 222
 223 (defmethod container-show-recursive ((container container))
 224   "Recursively show any child widgets except widgets explicit hidden during construction."
 225   (labels ((recursive-show (widget)
 226              (when (typep widget 'container)
 227                (if (not (user-data-p widget 'show-recursive-p))
 228                    (container-foreach widget #'recursive-show)
 229                  (unset-user-data widget 'show-recursive-p)))
 230              (unless (widget-hidden-p widget)
 231                (widget-show widget))))
 232     (container-foreach container #'recursive-show)))