Pileus Git - ~andy/gtk/blob - gtk/gtkhandlebox.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  * Copyright (C) 1998 Elliot Lee
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  23  * file for a list of people on the GTK+ Team.  See the ChangeLog
  24  * files for a list of changes.  These files are distributed with
  25  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  26  */
  27
  28 #include <stdlib.h>
  29 #include "gtkhandlebox.h"
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtksignal.h"
  33 #include "gtkwindow.h"
  34 #include "gtkintl.h"
  35
  36 enum {
  37   PROP_0,
  38   PROP_SHADOW,
  39   PROP_SHADOW_TYPE,
  40   PROP_HANDLE_POSITION,
  41   PROP_SNAP_EDGE
  42 };
  43
  44 #define DRAG_HANDLE_SIZE 10
  45 #define CHILDLESS_SIZE  25
  46 #define GHOST_HEIGHT 3
  47 #define TOLERANCE 5
  48
  49 enum {
  50   SIGNAL_CHILD_ATTACHED,
  51   SIGNAL_CHILD_DETACHED,
  52   SIGNAL_LAST
  53 };
  54
  55 /* The algorithm for docking and redocking implemented here
  56  * has a couple of nice properties:
  57  *
  58  * 1) During a single drag, docking always occurs at the
  59  *    the same cursor position. This means that the users
  60  *    motions are reversible, and that you won't
  61  *    undock/dock oscillations.
  62  *
  63  * 2) Docking generally occurs at user-visible features.
  64  *    The user, once they figure out to redock, will
  65  *    have useful information about doing it again in
  66  *    the future.
  67  *
  68  * Please try to preserve these properties if you
  69  * change the algorithm. (And the current algorithm
  70  * is far from ideal). Briefly, the current algorithm
  71  * for deciding whether the handlebox is docked or not:
  72  *
  73  * 1) The decision is done by comparing two rectangles - the
  74  *    allocation if the widget at the start of the drag,
  75  *    and the boundary of hb->bin_window at the start of
  76  *    of the drag offset by the distance that the cursor
  77  *    has moved.
  78  *
  79  * 2) These rectangles must have one edge, the "snap_edge"
  80  *    of the handlebox, aligned within TOLERANCE.
  81  *
  82  * 3) On the other dimension, the extents of one rectangle
  83  *    must be contained in the extents of the other,
  84  *    extended by tolerance. That is, either we can have:
  85  *
  86  * <-TOLERANCE-|--------bin_window--------------|-TOLERANCE->
  87  *         <--------float_window-------------------->
  88  *
  89  * or we can have:
  90  *
  91  * <-TOLERANCE-|------float_window--------------|-TOLERANCE->
  92  *          <--------bin_window-------------------->
  93  */
  94
  95 static void gtk_handle_box_class_init     (GtkHandleBoxClass *klass);
  96 static void gtk_handle_box_init           (GtkHandleBox      *handle_box);
  97 static void gtk_handle_box_set_property   (GObject      *object,
  98                                            guint         param_id,
  99                                            const GValue *value,
 100                                            GParamSpec   *pspec);
 101 static void gtk_handle_box_get_property   (GObject     *object,
 102                                            guint        param_id,
 103                                            GValue      *value,
 104                                            GParamSpec  *pspec);
 105 static void gtk_handle_box_destroy        (GtkObject         *object);
 106 static void gtk_handle_box_map            (GtkWidget         *widget);
 107 static void gtk_handle_box_unmap          (GtkWidget         *widget);
 108 static void gtk_handle_box_realize        (GtkWidget         *widget);
 109 static void gtk_handle_box_unrealize      (GtkWidget         *widget);
 110 static void gtk_handle_box_style_set      (GtkWidget         *widget,
 111                                            GtkStyle          *previous_style);
 112 static void gtk_handle_box_size_request   (GtkWidget         *widget,
 113                                            GtkRequisition    *requisition);
 114 static void gtk_handle_box_size_allocate  (GtkWidget         *widget,
 115                                            GtkAllocation     *real_allocation);
 116 static void gtk_handle_box_add            (GtkContainer      *container,
 117                                            GtkWidget         *widget);
 118 static void gtk_handle_box_remove         (GtkContainer      *container,
 119                                            GtkWidget         *widget);
 120 static void gtk_handle_box_draw_ghost     (GtkHandleBox      *hb);
 121 static void gtk_handle_box_paint          (GtkWidget         *widget,
 122                                            GdkEventExpose    *event,
 123                                            GdkRectangle      *area);
 124 static gint gtk_handle_box_expose         (GtkWidget         *widget,
 125                                            GdkEventExpose    *event);
 126 static gint gtk_handle_box_button_changed (GtkWidget         *widget,
 127                                            GdkEventButton    *event);
 128 static gint gtk_handle_box_motion         (GtkWidget         *widget,
 129                                            GdkEventMotion    *event);
 130 static gint gtk_handle_box_delete_event   (GtkWidget         *widget,
 131                                            GdkEventAny       *event);
 132 static void gtk_handle_box_reattach       (GtkHandleBox      *hb);
 133
 134
 135 static GtkBinClass *parent_class;
 136 static guint        handle_box_signals[SIGNAL_LAST] = { 0 };
 137
 138
 139 GtkType
 140 gtk_handle_box_get_type (void)
 141 {
 142   static GtkType handle_box_type = 0;
 143
 144   if (!handle_box_type)
 145     {
 146       static const GtkTypeInfo handle_box_info =
 147       {
 148         "GtkHandleBox",
 149         sizeof (GtkHandleBox),
 150         sizeof (GtkHandleBoxClass),
 151         (GtkClassInitFunc) gtk_handle_box_class_init,
 152         (GtkObjectInitFunc) gtk_handle_box_init,
 153         /* reserved_1 */ NULL,
 154         /* reserved_2 */ NULL,
 155         (GtkClassInitFunc) NULL,
 156       };
 157
 158       handle_box_type = gtk_type_unique (GTK_TYPE_BIN, &handle_box_info);
 159     }
 160
 161   return handle_box_type;
 162 }
 163
 164 static void
 165 gtk_handle_box_class_init (GtkHandleBoxClass *class)
 166 {
 167   GObjectClass *gobject_class;
 168   GtkObjectClass *object_class;
 169   GtkWidgetClass *widget_class;
 170   GtkContainerClass *container_class;
 171
 172   gobject_class = (GObjectClass *) class;
 173   object_class = (GtkObjectClass *) class;
 174   widget_class = (GtkWidgetClass *) class;
 175   container_class = (GtkContainerClass *) class;
 176
 177   parent_class = gtk_type_class (GTK_TYPE_BIN);
 178
 179   gobject_class->set_property = gtk_handle_box_set_property;
 180   gobject_class->get_property = gtk_handle_box_get_property;
 181
 182   g_object_class_install_property (gobject_class,
 183                                    PROP_SHADOW,
 184                                    g_param_spec_enum ("shadow", NULL,
 185                                                       _("Deprecated property, use shadow_type instead."),
 186                                                       GTK_TYPE_SHADOW_TYPE,
 187                                                       GTK_SHADOW_ETCHED_OUT,
 188                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 189   g_object_class_install_property (gobject_class,
 190                                    PROP_SHADOW_TYPE,
 191                                    g_param_spec_enum ("shadow_type",
 192                                                       _("Shadow type"),
 193                                                       _("Appearance of the shadow that surrounds the container."),
 194                                                       GTK_TYPE_SHADOW_TYPE,
 195                                                       GTK_SHADOW_ETCHED_OUT,
 196                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 197
 198   g_object_class_install_property (gobject_class,
 199                                    PROP_HANDLE_POSITION,
 200                                    g_param_spec_enum ("handle_position",
 201                                                       _("Handle position"),
 202                                                       _("Position of the handle relative to the child widget."),
 203                                                       GTK_TYPE_POSITION_TYPE,
 204                                                       GTK_POS_LEFT,
 205                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 206
 207   g_object_class_install_property (gobject_class,
 208                                    PROP_SNAP_EDGE,
 209                                    g_param_spec_enum ("snap_edge",
 210                                                       _("Snap edge"),
 211                                                       _("Side of the handlebox that's lined up with the docking point to dock the handlebox."),
 212                                                       GTK_TYPE_POSITION_TYPE,
 213                                                       GTK_POS_TOP,
 214                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 215   object_class->destroy = gtk_handle_box_destroy;
 216
 217   widget_class->map = gtk_handle_box_map;
 218   widget_class->unmap = gtk_handle_box_unmap;
 219   widget_class->realize = gtk_handle_box_realize;
 220   widget_class->unrealize = gtk_handle_box_unrealize;
 221   widget_class->style_set = gtk_handle_box_style_set;
 222   widget_class->size_request = gtk_handle_box_size_request;
 223   widget_class->size_allocate = gtk_handle_box_size_allocate;
 224   widget_class->expose_event = gtk_handle_box_expose;
 225   widget_class->button_press_event = gtk_handle_box_button_changed;
 226   widget_class->button_release_event = gtk_handle_box_button_changed;
 227   widget_class->motion_notify_event = gtk_handle_box_motion;
 228   widget_class->delete_event = gtk_handle_box_delete_event;
 229
 230   container_class->add = gtk_handle_box_add;
 231   container_class->remove = gtk_handle_box_remove;
 232
 233   class->child_attached = NULL;
 234   class->child_detached = NULL;
 235
 236   handle_box_signals[SIGNAL_CHILD_ATTACHED] =
 237     gtk_signal_new ("child_attached",
 238                     GTK_RUN_FIRST,
 239                     GTK_CLASS_TYPE (object_class),
 240                     GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_attached),
 241                     _gtk_marshal_VOID__OBJECT,
 242                     GTK_TYPE_NONE, 1,
 243                     GTK_TYPE_WIDGET);
 244   handle_box_signals[SIGNAL_CHILD_DETACHED] =
 245     gtk_signal_new ("child_detached",
 246                     GTK_RUN_FIRST,
 247                     GTK_CLASS_TYPE (object_class),
 248                     GTK_SIGNAL_OFFSET (GtkHandleBoxClass, child_detached),
 249                     _gtk_marshal_VOID__OBJECT,
 250                     GTK_TYPE_NONE, 1,
 251                     GTK_TYPE_WIDGET);
 252 }
 253
 254 static void
 255 gtk_handle_box_init (GtkHandleBox *handle_box)
 256 {
 257   GTK_WIDGET_UNSET_FLAGS (handle_box, GTK_NO_WINDOW);
 258
 259   handle_box->bin_window = NULL;
 260   handle_box->float_window = NULL;
 261   handle_box->shadow_type = GTK_SHADOW_OUT;
 262   handle_box->handle_position = GTK_POS_LEFT;
 263   handle_box->float_window_mapped = FALSE;
 264   handle_box->child_detached = FALSE;
 265   handle_box->in_drag = FALSE;
 266   handle_box->shrink_on_detach = TRUE;
 267   handle_box->snap_edge = -1;
 268 }
 269
 270 static void
 271 gtk_handle_box_set_property (GObject         *object,
 272                              guint            prop_id,
 273                              const GValue    *value,
 274                              GParamSpec      *pspec)
 275 {
 276   GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
 277
 278   switch (prop_id)
 279     {
 280     case PROP_SHADOW:
 281     case PROP_SHADOW_TYPE:
 282       gtk_handle_box_set_shadow_type (handle_box, g_value_get_enum (value));
 283       break;
 284     case PROP_HANDLE_POSITION:
 285       gtk_handle_box_set_handle_position (handle_box, g_value_get_enum (value));
 286       break;
 287     case PROP_SNAP_EDGE:
 288       gtk_handle_box_set_snap_edge (handle_box, g_value_get_enum (value));
 289       break;
 290     default:
 291       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 292       break;
 293     }
 294 }
 295
 296 static void
 297 gtk_handle_box_get_property (GObject         *object,
 298                              guint            prop_id,
 299                              GValue          *value,
 300                              GParamSpec      *pspec)
 301 {
 302   GtkHandleBox *handle_box = GTK_HANDLE_BOX (object);
 303
 304   switch (prop_id)
 305     {
 306     case PROP_SHADOW:
 307     case PROP_SHADOW_TYPE:
 308       g_value_set_enum (value, handle_box->shadow_type);
 309       break;
 310     case PROP_HANDLE_POSITION:
 311       g_value_set_enum (value, handle_box->handle_position);
 312       break;
 313     case PROP_SNAP_EDGE:
 314       g_value_set_enum (value, handle_box->snap_edge);
 315       break;
 316     default:
 317       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 318       break;
 319     }
 320 }
 321
 322 GtkWidget*
 323 gtk_handle_box_new (void)
 324 {
 325   return GTK_WIDGET (gtk_type_new (gtk_handle_box_get_type ()));
 326 }
 327
 328 static void
 329 gtk_handle_box_destroy (GtkObject *object)
 330 {
 331   if (GTK_OBJECT_CLASS (parent_class)->destroy)
 332     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 333 }
 334
 335 static void
 336 gtk_handle_box_map (GtkWidget *widget)
 337 {
 338   GtkBin *bin;
 339   GtkHandleBox *hb;
 340
 341   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 342
 343   bin = GTK_BIN (widget);
 344   hb = GTK_HANDLE_BOX (widget);
 345
 346   if (bin->child &&
 347       GTK_WIDGET_VISIBLE (bin->child) &&
 348       !GTK_WIDGET_MAPPED (bin->child))
 349     gtk_widget_map (bin->child);
 350
 351   if (hb->child_detached && !hb->float_window_mapped)
 352     {
 353       gdk_window_show (hb->float_window);
 354       hb->float_window_mapped = TRUE;
 355     }
 356
 357   gdk_window_show (hb->bin_window);
 358   gdk_window_show (widget->window);
 359 }
 360
 361 static void
 362 gtk_handle_box_unmap (GtkWidget *widget)
 363 {
 364   GtkHandleBox *hb;
 365
 366   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 367
 368   hb = GTK_HANDLE_BOX (widget);
 369
 370   gdk_window_hide (widget->window);
 371   if (hb->float_window_mapped)
 372     {
 373       gdk_window_hide (hb->float_window);
 374       hb->float_window_mapped = FALSE;
 375     }
 376 }
 377
 378 static void
 379 gtk_handle_box_realize (GtkWidget *widget)
 380 {
 381   GdkWindowAttr attributes;
 382   gint attributes_mask;
 383   GtkHandleBox *hb;
 384
 385   hb = GTK_HANDLE_BOX (widget);
 386
 387   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 388
 389   attributes.x = widget->allocation.x;
 390   attributes.y = widget->allocation.y;
 391   attributes.width = widget->allocation.width;
 392   attributes.height = widget->allocation.height;
 393   attributes.window_type = GDK_WINDOW_CHILD;
 394   attributes.wclass = GDK_INPUT_OUTPUT;
 395   attributes.visual = gtk_widget_get_visual (widget);
 396   attributes.colormap = gtk_widget_get_colormap (widget);
 397   attributes.event_mask = (gtk_widget_get_events (widget)
 398                            | GDK_EXPOSURE_MASK);
 399   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 400   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
 401   gdk_window_set_user_data (widget->window, widget);
 402
 403   attributes.x = 0;
 404   attributes.y = 0;
 405   attributes.width = widget->allocation.width;
 406   attributes.height = widget->allocation.height;
 407   attributes.window_type = GDK_WINDOW_CHILD;
 408   attributes.event_mask = (gtk_widget_get_events (widget) |
 409                            GDK_EXPOSURE_MASK |
 410                            GDK_BUTTON1_MOTION_MASK |
 411                            GDK_POINTER_MOTION_HINT_MASK |
 412                            GDK_BUTTON_PRESS_MASK |
 413                             GDK_BUTTON_RELEASE_MASK);
 414   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 415   hb->bin_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 416   gdk_window_set_user_data (hb->bin_window, widget);
 417   if (GTK_BIN (hb)->child)
 418     gtk_widget_set_parent_window (GTK_BIN (hb)->child, hb->bin_window);
 419
 420   attributes.x = 0;
 421   attributes.y = 0;
 422   attributes.width = widget->requisition.width;
 423   attributes.height = widget->requisition.height;
 424   attributes.window_type = GDK_WINDOW_TOPLEVEL;
 425   attributes.wclass = GDK_INPUT_OUTPUT;
 426   attributes.visual = gtk_widget_get_visual (widget);
 427   attributes.colormap = gtk_widget_get_colormap (widget);
 428   attributes.event_mask = (gtk_widget_get_events (widget) |
 429                            GDK_KEY_PRESS_MASK |
 430                            GDK_ENTER_NOTIFY_MASK |
 431                            GDK_LEAVE_NOTIFY_MASK |
 432                            GDK_FOCUS_CHANGE_MASK |
 433                            GDK_STRUCTURE_MASK);
 434   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 435   hb->float_window = gdk_window_new (gtk_widget_get_root_window (widget),
 436                                      &attributes, attributes_mask);
 437   gdk_window_set_user_data (hb->float_window, widget);
 438   gdk_window_set_decorations (hb->float_window, 0);
 439   gdk_window_set_type_hint (hb->float_window, GDK_WINDOW_TYPE_HINT_TOOLBAR);
 440
 441   widget->style = gtk_style_attach (widget->style, widget->window);
 442   gtk_style_set_background (widget->style, widget->window, GTK_WIDGET_STATE (hb));
 443   gtk_style_set_background (widget->style, hb->bin_window, GTK_WIDGET_STATE (hb));
 444   gtk_style_set_background (widget->style, hb->float_window, GTK_WIDGET_STATE (hb));
 445   gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
 446 }
 447
 448 static void
 449 gtk_handle_box_unrealize (GtkWidget *widget)
 450 {
 451   GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
 452
 453   gdk_window_set_user_data (hb->bin_window, NULL);
 454   gdk_window_destroy (hb->bin_window);
 455   hb->bin_window = NULL;
 456   gdk_window_set_user_data (hb->float_window, NULL);
 457   gdk_window_destroy (hb->float_window);
 458   hb->float_window = NULL;
 459
 460   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 461     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 462 }
 463
 464 static void
 465 gtk_handle_box_style_set (GtkWidget *widget,
 466                           GtkStyle  *previous_style)
 467 {
 468   GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
 469
 470   if (GTK_WIDGET_REALIZED (widget) &&
 471       !GTK_WIDGET_NO_WINDOW (widget))
 472     {
 473       gtk_style_set_background (widget->style, widget->window,
 474                                 widget->state);
 475       gtk_style_set_background (widget->style, hb->bin_window, widget->state);
 476       gtk_style_set_background (widget->style, hb->float_window, widget->state);
 477     }
 478 }
 479
 480 static void
 481 gtk_handle_box_size_request (GtkWidget      *widget,
 482                              GtkRequisition *requisition)
 483 {
 484   GtkBin *bin;
 485   GtkHandleBox *hb;
 486   GtkRequisition child_requisition;
 487
 488   bin = GTK_BIN (widget);
 489   hb = GTK_HANDLE_BOX (widget);
 490
 491   if (hb->handle_position == GTK_POS_LEFT ||
 492       hb->handle_position == GTK_POS_RIGHT)
 493     {
 494       requisition->width = DRAG_HANDLE_SIZE;
 495       requisition->height = 0;
 496     }
 497   else
 498     {
 499       requisition->width = 0;
 500       requisition->height = DRAG_HANDLE_SIZE;
 501     }
 502
 503   /* if our child is not visible, we still request its size, since we
 504    * won't have any usefull hint for our size otherwise.
 505    */
 506   if (bin->child)
 507     gtk_widget_size_request (bin->child, &child_requisition);
 508   else
 509     {
 510       child_requisition.width = 0;
 511       child_requisition.height = 0;
 512     }
 513
 514   if (hb->child_detached)
 515     {
 516       /* FIXME: This doesn't work currently */
 517       if (!hb->shrink_on_detach)
 518         {
 519           if (hb->handle_position == GTK_POS_LEFT ||
 520               hb->handle_position == GTK_POS_RIGHT)
 521             requisition->height += child_requisition.height;
 522           else
 523             requisition->width += child_requisition.width;
 524         }
 525       else
 526         {
 527           if (hb->handle_position == GTK_POS_LEFT ||
 528               hb->handle_position == GTK_POS_RIGHT)
 529             requisition->height += widget->style->ythickness;
 530           else
 531             requisition->width += widget->style->xthickness;
 532         }
 533     }
 534   else
 535     {
 536       requisition->width += GTK_CONTAINER (widget)->border_width * 2;
 537       requisition->height += GTK_CONTAINER (widget)->border_width * 2;
 538
 539       if (bin->child)
 540         {
 541           requisition->width += child_requisition.width;
 542           requisition->height += child_requisition.height;
 543         }
 544       else
 545         {
 546           requisition->width += CHILDLESS_SIZE;
 547           requisition->height += CHILDLESS_SIZE;
 548         }
 549     }
 550 }
 551
 552 static void
 553 gtk_handle_box_size_allocate (GtkWidget     *widget,
 554                               GtkAllocation *allocation)
 555 {
 556   GtkBin *bin;
 557   GtkHandleBox *hb;
 558   GtkRequisition child_requisition;
 559
 560   bin = GTK_BIN (widget);
 561   hb = GTK_HANDLE_BOX (widget);
 562
 563   if (bin->child)
 564     gtk_widget_get_child_requisition (bin->child, &child_requisition);
 565   else
 566     {
 567       child_requisition.width = 0;
 568       child_requisition.height = 0;
 569     }
 570
 571   widget->allocation = *allocation;
 572
 573   if (GTK_WIDGET_REALIZED (hb))
 574     gdk_window_move_resize (widget->window,
 575                             widget->allocation.x,
 576                             widget->allocation.y,
 577                             widget->allocation.width,
 578                             widget->allocation.height);
 579
 580
 581   if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
 582     {
 583       GtkWidget *child;
 584       GtkAllocation child_allocation;
 585       guint border_width;
 586
 587       child = bin->child;
 588       border_width = GTK_CONTAINER (widget)->border_width;
 589
 590       child_allocation.x = border_width;
 591       child_allocation.y = border_width;
 592       if (hb->handle_position == GTK_POS_LEFT)
 593         child_allocation.x += DRAG_HANDLE_SIZE;
 594       else if (hb->handle_position == GTK_POS_TOP)
 595         child_allocation.y += DRAG_HANDLE_SIZE;
 596
 597       if (hb->child_detached)
 598         {
 599           guint float_width;
 600           guint float_height;
 601
 602           child_allocation.width = child_requisition.width;
 603           child_allocation.height = child_requisition.height;
 604
 605           float_width = child_allocation.width + 2 * border_width;
 606           float_height = child_allocation.height + 2 * border_width;
 607
 608           if (hb->handle_position == GTK_POS_LEFT ||
 609               hb->handle_position == GTK_POS_RIGHT)
 610             float_width += DRAG_HANDLE_SIZE;
 611           else
 612             float_height += DRAG_HANDLE_SIZE;
 613
 614           if (GTK_WIDGET_REALIZED (hb))
 615             {
 616               gdk_window_resize (hb->float_window,
 617                                  float_width,
 618                                  float_height);
 619               gdk_window_move_resize (hb->bin_window,
 620                                       0,
 621                                       0,
 622                                       float_width,
 623                                       float_height);
 624             }
 625         }
 626       else
 627         {
 628           child_allocation.width = MAX (1, (gint)widget->allocation.width - 2 * border_width);
 629           child_allocation.height = MAX (1, (gint)widget->allocation.height - 2 * border_width);
 630
 631           if (hb->handle_position == GTK_POS_LEFT ||
 632               hb->handle_position == GTK_POS_RIGHT)
 633             child_allocation.width -= DRAG_HANDLE_SIZE;
 634           else
 635             child_allocation.height -= DRAG_HANDLE_SIZE;
 636
 637           if (GTK_WIDGET_REALIZED (hb))
 638             gdk_window_move_resize (hb->bin_window,
 639                                     0,
 640                                     0,
 641                                     widget->allocation.width,
 642                                     widget->allocation.height);
 643         }
 644
 645       gtk_widget_size_allocate (bin->child, &child_allocation);
 646     }
 647 }
 648
 649 static void
 650 gtk_handle_box_draw_ghost (GtkHandleBox *hb)
 651 {
 652   GtkWidget *widget;
 653   guint x;
 654   guint y;
 655   guint width;
 656   guint height;
 657
 658   widget = GTK_WIDGET (hb);
 659
 660   if (hb->handle_position == GTK_POS_LEFT ||
 661       hb->handle_position == GTK_POS_RIGHT)
 662     {
 663       x = hb->handle_position == GTK_POS_LEFT ? 0 : widget->allocation.width - DRAG_HANDLE_SIZE;
 664       y = 0;
 665       width = DRAG_HANDLE_SIZE;
 666       height = widget->allocation.height;
 667     }
 668   else
 669     {
 670       x = 0;
 671       y = hb->handle_position == GTK_POS_TOP ? 0 : widget->allocation.height - DRAG_HANDLE_SIZE;
 672       width = widget->allocation.width;
 673       height = DRAG_HANDLE_SIZE;
 674     }
 675   gtk_paint_shadow (widget->style,
 676                     widget->window,
 677                     GTK_WIDGET_STATE (widget),
 678                     GTK_SHADOW_ETCHED_IN,
 679                     NULL, widget, "handle",
 680                     x,
 681                     y,
 682                     width,
 683                     height);
 684    if (hb->handle_position == GTK_POS_LEFT ||
 685        hb->handle_position == GTK_POS_RIGHT)
 686      gtk_paint_hline (widget->style,
 687                       widget->window,
 688                       GTK_WIDGET_STATE (widget),
 689                       NULL, widget, "handlebox",
 690                       hb->handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0,
 691                       hb->handle_position == GTK_POS_LEFT ? widget->allocation.width : widget->allocation.width - DRAG_HANDLE_SIZE,
 692                       widget->allocation.height / 2);
 693    else
 694      gtk_paint_vline (widget->style,
 695                       widget->window,
 696                       GTK_WIDGET_STATE (widget),
 697                       NULL, widget, "handlebox",
 698                       hb->handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0,
 699                       hb->handle_position == GTK_POS_TOP ? widget->allocation.height : widget->allocation.height - DRAG_HANDLE_SIZE,
 700                       widget->allocation.width / 2);
 701 }
 702
 703 static void
 704 draw_textured_frame (GtkWidget *widget, GdkWindow *window, GdkRectangle *rect, GtkShadowType shadow,
 705                      GdkRectangle *clip)
 706 {
 707    gtk_paint_handle (widget->style, window, GTK_STATE_NORMAL, shadow,
 708                      clip, widget, "handlebox",
 709                      rect->x, rect->y, rect->width, rect->height,
 710                      GTK_ORIENTATION_VERTICAL);
 711 }
 712
 713 void
 714 gtk_handle_box_set_shadow_type (GtkHandleBox  *handle_box,
 715                                 GtkShadowType  type)
 716 {
 717   g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
 718
 719   if ((GtkShadowType) handle_box->shadow_type != type)
 720     {
 721       handle_box->shadow_type = type;
 722       g_object_notify (G_OBJECT (handle_box), "shadow_type");
 723       gtk_widget_queue_resize (GTK_WIDGET (handle_box));
 724     }
 725 }
 726
 727 /**
 728  * gtk_handle_box_get_shadow_type:
 729  * @handle_box: a #GtkHandleBox
 730  *
 731  * Gets the type of shadow drawn around the handle box. See
 732  * gtk_handle_box_set_shadow_type().
 733  *
 734  * Return value: the type of shadow currently drawn around the handle box.
 735  **/
 736 GtkShadowType
 737 gtk_handle_box_get_shadow_type (GtkHandleBox *handle_box)
 738 {
 739   g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_SHADOW_ETCHED_OUT);
 740
 741   return handle_box->shadow_type;
 742 }
 743
 744 void
 745 gtk_handle_box_set_handle_position  (GtkHandleBox    *handle_box,
 746                                      GtkPositionType  position)
 747 {
 748   g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
 749
 750   if ((GtkPositionType) handle_box->handle_position != position)
 751     {
 752       handle_box->handle_position = position;
 753       g_object_notify (G_OBJECT (handle_box), "handle_position");
 754       gtk_widget_queue_resize (GTK_WIDGET (handle_box));
 755     }
 756 }
 757
 758 /**
 759  * gtk_handle_box_get_handle_position:
 760  * @handle_box: a #GtkHandleBox
 761  *
 762  * Gets the handle position of the handle box. See
 763  * gtk_handle_box_set_handle_position().
 764  *
 765  * Return value: the current handle position.
 766  **/
 767 GtkPositionType
 768 gtk_handle_box_get_handle_position (GtkHandleBox *handle_box)
 769 {
 770   g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_POS_LEFT);
 771
 772   return handle_box->handle_position;
 773 }
 774
 775 void
 776 gtk_handle_box_set_snap_edge        (GtkHandleBox    *handle_box,
 777                                      GtkPositionType  edge)
 778 {
 779   g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box));
 780
 781   if (handle_box->snap_edge != edge)
 782     {
 783       handle_box->snap_edge = edge;
 784       g_object_notify (G_OBJECT (handle_box), "snap_edge");
 785     }
 786 }
 787
 788 /**
 789  * gtk_handle_box_get_snap_edge:
 790  * @handle_box: a #GtkHandleBox
 791  *
 792  * Gets the edge used for determining reattachment of the handle box. See
 793  * gtk_handle_box_set_snap_edge().
 794  *
 795  * Return value: the edge used for determining reattachment, or (GtkPositionType)-1 if this
 796  *               is determined (as per default) from the handle position.
 797  **/
 798 GtkPositionType
 799 gtk_handle_box_get_snap_edge (GtkHandleBox *handle_box)
 800 {
 801   g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), (GtkPositionType)-1);
 802
 803   return handle_box->snap_edge;
 804 }
 805
 806 static void
 807 gtk_handle_box_paint (GtkWidget      *widget,
 808                       GdkEventExpose *event,
 809                       GdkRectangle   *area)
 810 {
 811   GtkBin *bin;
 812   GtkHandleBox *hb;
 813   guint width;
 814   guint height;
 815   GdkRectangle rect;
 816   GdkRectangle dest;
 817
 818   bin = GTK_BIN (widget);
 819   hb = GTK_HANDLE_BOX (widget);
 820
 821   gdk_window_get_size (hb->bin_window, &width, &height);
 822
 823   if (!event)
 824     gtk_paint_box (widget->style,
 825                    hb->bin_window,
 826                    GTK_WIDGET_STATE (widget),
 827                    hb->shadow_type,
 828                    area, widget, "handlebox_bin",
 829                    0, 0, -1, -1);
 830   else
 831    gtk_paint_box (widget->style,
 832                   hb->bin_window,
 833                   GTK_WIDGET_STATE (widget),
 834                   hb->shadow_type,
 835                   &event->area, widget, "handlebox_bin",
 836                   0, 0, -1, -1);
 837
 838 /* We currently draw the handle _above_ the relief of the handlebox.
 839  * it could also be drawn on the same level...
 840
 841                  hb->handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0,
 842                  hb->handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0,
 843                  width,
 844                  height);*/
 845
 846   switch (hb->handle_position)
 847     {
 848     case GTK_POS_LEFT:
 849       rect.x = 0;
 850       rect.y = 0;
 851       rect.width = DRAG_HANDLE_SIZE;
 852       rect.height = height;
 853       break;
 854     case GTK_POS_RIGHT:
 855       rect.x = width - DRAG_HANDLE_SIZE;
 856       rect.y = 0;
 857       rect.width = DRAG_HANDLE_SIZE;
 858       rect.height = height;
 859       break;
 860     case GTK_POS_TOP:
 861       rect.x = 0;
 862       rect.y = 0;
 863       rect.width = width;
 864       rect.height = DRAG_HANDLE_SIZE;
 865       break;
 866     case GTK_POS_BOTTOM:
 867       rect.x = 0;
 868       rect.y = height - DRAG_HANDLE_SIZE;
 869       rect.width = width;
 870       rect.height = DRAG_HANDLE_SIZE;
 871       break;
 872     }
 873
 874   if (gdk_rectangle_intersect (event ? &event->area : area, &rect, &dest))
 875     draw_textured_frame (widget, hb->bin_window, &rect,
 876                          GTK_SHADOW_OUT,
 877                          event ? &event->area : area);
 878
 879   if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
 880     {
 881       GdkRectangle child_area;
 882
 883       if (!event) /* we were called from draw() */
 884         {
 885           if (gtk_widget_intersect (bin->child, area, &child_area))
 886             gtk_widget_draw (bin->child, &child_area);
 887         }
 888       else /* we were called from expose() */
 889         (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 890     }
 891 }
 892
 893 static gint
 894 gtk_handle_box_expose (GtkWidget      *widget,
 895                        GdkEventExpose *event)
 896 {
 897   GtkHandleBox *hb;
 898
 899   if (GTK_WIDGET_DRAWABLE (widget))
 900     {
 901       hb = GTK_HANDLE_BOX (widget);
 902
 903       if (event->window == widget->window)
 904         {
 905           if (hb->child_detached)
 906             gtk_handle_box_draw_ghost (hb);
 907         }
 908       else
 909         gtk_handle_box_paint (widget, event, NULL);
 910     }
 911
 912   return FALSE;
 913 }
 914
 915 static gint
 916 gtk_handle_box_button_changed (GtkWidget      *widget,
 917                                GdkEventButton *event)
 918 {
 919   GtkHandleBox *hb;
 920   gboolean event_handled;
 921   GdkCursor *fleur;
 922
 923   hb = GTK_HANDLE_BOX (widget);
 924
 925   event_handled = FALSE;
 926   if ((event->button == 1) &&
 927       (event->type == GDK_BUTTON_PRESS || event->type == GDK_2BUTTON_PRESS))
 928     {
 929       GtkWidget *child;
 930       gboolean in_handle;
 931
 932       if (event->window != hb->bin_window)
 933         return FALSE;
 934
 935       child = GTK_BIN (hb)->child;
 936
 937       if (child)
 938         {
 939           switch (hb->handle_position)
 940             {
 941             case GTK_POS_LEFT:
 942               in_handle = event->x < DRAG_HANDLE_SIZE;
 943               break;
 944             case GTK_POS_TOP:
 945               in_handle = event->y < DRAG_HANDLE_SIZE;
 946               break;
 947             case GTK_POS_RIGHT:
 948               in_handle = event->x > 2 * GTK_CONTAINER (hb)->border_width + child->allocation.width;
 949               break;
 950             case GTK_POS_BOTTOM:
 951               in_handle = event->y > 2 * GTK_CONTAINER (hb)->border_width + child->allocation.height;
 952               break;
 953             default:
 954               in_handle = FALSE;
 955               break;
 956             }
 957         }
 958       else
 959         {
 960           in_handle = FALSE;
 961           event_handled = TRUE;
 962         }
 963
 964       if (in_handle)
 965         {
 966           if (event->type == GDK_BUTTON_PRESS) /* Start a drag */
 967             {
 968               gint desk_x, desk_y;
 969               gint root_x, root_y;
 970               gint width, height;
 971
 972               gdk_window_get_deskrelative_origin (hb->bin_window, &desk_x, &desk_y);
 973               gdk_window_get_origin (hb->bin_window, &root_x, &root_y);
 974               gdk_window_get_size (hb->bin_window, &width, &height);
 975
 976               hb->float_allocation.x = root_x - event->x_root;
 977               hb->float_allocation.y = root_y - event->y_root;
 978               hb->float_allocation.width = width;
 979               hb->float_allocation.height = height;
 980
 981               hb->deskoff_x = desk_x - root_x;
 982               hb->deskoff_y = desk_y - root_y;
 983
 984               gdk_window_get_origin (widget->window, &root_x, &root_y);
 985               gdk_window_get_size (widget->window, &width, &height);
 986
 987               hb->attach_allocation.x = root_x;
 988               hb->attach_allocation.y = root_y;
 989               hb->attach_allocation.width = width;
 990               hb->attach_allocation.height = height;
 991
 992               hb->in_drag = TRUE;
 993               fleur = gdk_cursor_new_for_screen (gdk_drawable_get_screen (widget->window),
 994                                                  GDK_FLEUR);
 995               if (gdk_pointer_grab (widget->window,
 996                                     FALSE,
 997                                     (GDK_BUTTON1_MOTION_MASK |
 998                                      GDK_POINTER_MOTION_HINT_MASK |
 999                                      GDK_BUTTON_RELEASE_MASK),
1000                                     NULL,
1001                                     fleur,
1002                                     GDK_CURRENT_TIME) != 0)
1003                 {
1004                   hb->in_drag = FALSE;
1005                 }
1006
1007               gdk_cursor_destroy (fleur);
1008               event_handled = TRUE;
1009             }
1010           else if (hb->child_detached) /* Double click */
1011             {
1012               gtk_handle_box_reattach (hb);
1013             }
1014         }
1015     }
1016   else if (event->type == GDK_BUTTON_RELEASE &&
1017            hb->in_drag)
1018     {
1019       if (event->window != widget->window)
1020         return FALSE;
1021
1022       gdk_display_pointer_ungrab (gtk_widget_get_display (widget),
1023                                   GDK_CURRENT_TIME);
1024       hb->in_drag = FALSE;
1025       event_handled = TRUE;
1026     }
1027
1028   return event_handled;
1029 }
1030
1031 static gint
1032 gtk_handle_box_motion (GtkWidget      *widget,
1033                        GdkEventMotion *event)
1034 {
1035   GtkHandleBox *hb;
1036   gint new_x, new_y;
1037   gint snap_edge;
1038   gboolean is_snapped = FALSE;
1039
1040   hb = GTK_HANDLE_BOX (widget);
1041   if (!hb->in_drag)
1042     return FALSE;
1043
1044   if (!hb->in_drag || (event->window != widget->window))
1045     return FALSE;
1046
1047   /* Calculate the attachment point on the float, if the float
1048    * were detached
1049    */
1050   new_x = 0;
1051   new_y = 0;
1052   gdk_window_get_pointer (gtk_widget_get_root_window (widget),
1053                           &new_x, &new_y, NULL);
1054   new_x += hb->float_allocation.x;
1055   new_y += hb->float_allocation.y;
1056
1057   snap_edge = hb->snap_edge;
1058   if (snap_edge == -1)
1059     snap_edge = (hb->handle_position == GTK_POS_LEFT ||
1060                   hb->handle_position == GTK_POS_RIGHT) ?
1061       GTK_POS_TOP : GTK_POS_LEFT;
1062
1063   /* First, check if the snapped edge is aligned
1064    */
1065   switch (snap_edge)
1066     {
1067     case GTK_POS_TOP:
1068       is_snapped = abs (hb->attach_allocation.y - new_y) < TOLERANCE;
1069       break;
1070     case GTK_POS_BOTTOM:
1071       is_snapped = abs (hb->attach_allocation.y + (gint)hb->attach_allocation.height -
1072                         new_y - (gint)hb->float_allocation.height) < TOLERANCE;
1073       break;
1074     case GTK_POS_LEFT:
1075       is_snapped = abs (hb->attach_allocation.x - new_x) < TOLERANCE;
1076       break;
1077     case GTK_POS_RIGHT:
1078       is_snapped = abs (hb->attach_allocation.x + (gint)hb->attach_allocation.width -
1079                         new_x - (gint)hb->float_allocation.width) < TOLERANCE;
1080       break;
1081     }
1082
1083   /* Next, check if coordinates in the other direction are sufficiently
1084    * aligned
1085    */
1086   if (is_snapped)
1087     {
1088       gint float_pos1 = 0;      /* Initialize to suppress warnings */
1089       gint float_pos2 = 0;
1090       gint attach_pos1 = 0;
1091       gint attach_pos2 = 0;
1092
1093       switch (snap_edge)
1094         {
1095         case GTK_POS_TOP:
1096         case GTK_POS_BOTTOM:
1097           attach_pos1 = hb->attach_allocation.x;
1098           attach_pos2 = hb->attach_allocation.x + hb->attach_allocation.width;
1099           float_pos1 = new_x;
1100           float_pos2 = new_x + hb->float_allocation.width;
1101           break;
1102         case GTK_POS_LEFT:
1103         case GTK_POS_RIGHT:
1104           attach_pos1 = hb->attach_allocation.y;
1105           attach_pos2 = hb->attach_allocation.y + hb->attach_allocation.height;
1106           float_pos1 = new_y;
1107           float_pos2 = new_y + hb->float_allocation.height;
1108           break;
1109         }
1110
1111       is_snapped = ((attach_pos1 - TOLERANCE < float_pos1) &&
1112                     (attach_pos2 + TOLERANCE > float_pos2)) ||
1113                    ((float_pos1 - TOLERANCE < attach_pos1) &&
1114                     (float_pos2 + TOLERANCE > attach_pos2));
1115     }
1116
1117   if (is_snapped)
1118     {
1119       if (hb->child_detached)
1120         {
1121           hb->child_detached = FALSE;
1122           gdk_window_hide (hb->float_window);
1123           gdk_window_reparent (hb->bin_window, widget->window, 0, 0);
1124           hb->float_window_mapped = FALSE;
1125           gtk_signal_emit (GTK_OBJECT (hb),
1126                            handle_box_signals[SIGNAL_CHILD_ATTACHED],
1127                            GTK_BIN (hb)->child);
1128
1129           gtk_widget_queue_resize (widget);
1130         }
1131     }
1132   else
1133     {
1134       gint width, height;
1135
1136       gdk_window_get_size (hb->float_window, &width, &height);
1137       new_x += hb->deskoff_x;
1138       new_y += hb->deskoff_y;
1139
1140       switch (hb->handle_position)
1141         {
1142         case GTK_POS_LEFT:
1143           new_y += ((gint)hb->float_allocation.height - height) / 2;
1144           break;
1145         case GTK_POS_RIGHT:
1146           new_x += (gint)hb->float_allocation.width - width;
1147           new_y += ((gint)hb->float_allocation.height - height) / 2;
1148           break;
1149         case GTK_POS_TOP:
1150           new_x += ((gint)hb->float_allocation.width - width) / 2;
1151           break;
1152         case GTK_POS_BOTTOM:
1153           new_x += ((gint)hb->float_allocation.width - width) / 2;
1154           new_y += (gint)hb->float_allocation.height - height;
1155           break;
1156         }
1157
1158       if (hb->child_detached)
1159         {
1160           gdk_window_move (hb->float_window, new_x, new_y);
1161           gdk_window_raise (hb->float_window);
1162         }
1163       else
1164         {
1165           gint width;
1166           gint height;
1167           GtkRequisition child_requisition;
1168
1169           hb->child_detached = TRUE;
1170
1171           if (GTK_BIN (hb)->child)
1172             gtk_widget_get_child_requisition (GTK_BIN (hb)->child, &child_requisition);
1173           else
1174             {
1175               child_requisition.width = 0;
1176               child_requisition.height = 0;
1177             }
1178
1179           width = child_requisition.width + 2 * GTK_CONTAINER (hb)->border_width;
1180           height = child_requisition.height + 2 * GTK_CONTAINER (hb)->border_width;
1181
1182           if (hb->handle_position == GTK_POS_LEFT || hb->handle_position == GTK_POS_RIGHT)
1183             width += DRAG_HANDLE_SIZE;
1184           else
1185             height += DRAG_HANDLE_SIZE;
1186
1187           gdk_window_move_resize (hb->float_window, new_x, new_y, width, height);
1188           gdk_window_reparent (hb->bin_window, hb->float_window, 0, 0);
1189           gdk_window_set_hints (hb->float_window, new_x, new_y, 0, 0, 0, 0, GDK_HINT_POS);
1190           gdk_window_show (hb->float_window);
1191           hb->float_window_mapped = TRUE;
1192 #if     0
1193           /* this extra move is neccessary if we use decorations, or our
1194            * window manager insists on decorations.
1195            */
1196           gdk_display_sync (gtk_widget_get_display (widget));
1197           gdk_window_move (hb->float_window, new_x, new_y);
1198           gdk_display_sync (gtk_widget_get_display (widget));
1199 #endif  /* 0 */
1200           gtk_signal_emit (GTK_OBJECT (hb),
1201                            handle_box_signals[SIGNAL_CHILD_DETACHED],
1202                            GTK_BIN (hb)->child);
1203           gtk_handle_box_draw_ghost (hb);
1204
1205           gtk_widget_queue_resize (widget);
1206         }
1207     }
1208
1209   return TRUE;
1210 }
1211
1212 static void
1213 gtk_handle_box_add (GtkContainer *container,
1214                     GtkWidget    *widget)
1215 {
1216   gtk_widget_set_parent_window (widget, GTK_HANDLE_BOX (container)->bin_window);
1217   GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
1218 }
1219
1220 static void
1221 gtk_handle_box_remove (GtkContainer *container,
1222                        GtkWidget    *widget)
1223 {
1224   GTK_CONTAINER_CLASS (parent_class)->remove (container, widget);
1225
1226   gtk_handle_box_reattach (GTK_HANDLE_BOX (container));
1227 }
1228
1229 static gint
1230 gtk_handle_box_delete_event (GtkWidget *widget,
1231                              GdkEventAny  *event)
1232 {
1233   GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
1234
1235   if (event->window == hb->float_window)
1236     {
1237       gtk_handle_box_reattach (hb);
1238
1239       return TRUE;
1240     }
1241
1242   return FALSE;
1243 }
1244
1245 static void
1246 gtk_handle_box_reattach (GtkHandleBox *hb)
1247 {
1248   GtkWidget *widget = GTK_WIDGET (hb);
1249
1250   if (hb->child_detached)
1251     {
1252       hb->child_detached = FALSE;
1253       if (GTK_WIDGET_REALIZED (hb))
1254         {
1255           gdk_window_hide (hb->float_window);
1256           gdk_window_reparent (hb->bin_window, widget->window, 0, 0);
1257
1258           if (GTK_BIN (hb)->child)
1259             gtk_signal_emit (GTK_OBJECT (hb),
1260                              handle_box_signals[SIGNAL_CHILD_ATTACHED],
1261                              GTK_BIN (hb)->child);
1262
1263         }
1264       hb->float_window_mapped = FALSE;
1265     }
1266   if (hb->in_drag)
1267     {
1268       gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (hb)),
1269                                   GDK_CURRENT_TIME);
1270       hb->in_drag = FALSE;
1271     }
1272
1273   gtk_widget_queue_resize (GTK_WIDGET (hb));
1274 }