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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  * GtkStatusbar Copyright (C) 1998 Shawn T. Amundson
   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 "gtkframe.h"
  29 #include "gtklabel.h"
  30 #include "gtkmarshalers.h"
  31 #include "gtkstatusbar.h"
  32 #include "gtkwindow.h"
  33 #include "gtkintl.h"
  34
  35 typedef struct _GtkStatusbarMsg GtkStatusbarMsg;
  36
  37 struct _GtkStatusbarMsg
  38 {
  39   gchar *text;
  40   guint context_id;
  41   guint message_id;
  42 };
  43
  44 enum
  45 {
  46   SIGNAL_TEXT_PUSHED,
  47   SIGNAL_TEXT_POPPED,
  48   SIGNAL_LAST
  49 };
  50
  51 enum
  52 {
  53   PROP_ZERO,
  54   PROP_HAS_RESIZE_GRIP
  55 };
  56
  57 static void     gtk_statusbar_class_init     (GtkStatusbarClass *class);
  58 static void     gtk_statusbar_init           (GtkStatusbar      *statusbar);
  59 static void     gtk_statusbar_destroy        (GtkObject         *object);
  60 static void     gtk_statusbar_update         (GtkStatusbar      *statusbar,
  61                                               guint              context_id,
  62                                               const gchar       *text);
  63 static void     gtk_statusbar_size_allocate  (GtkWidget         *widget,
  64                                               GtkAllocation     *allocation);
  65 static void     gtk_statusbar_realize        (GtkWidget         *widget);
  66 static void     gtk_statusbar_unrealize      (GtkWidget         *widget);
  67 static void     gtk_statusbar_map            (GtkWidget         *widget);
  68 static void     gtk_statusbar_unmap          (GtkWidget         *widget);
  69 static gboolean gtk_statusbar_button_press   (GtkWidget         *widget,
  70                                               GdkEventButton    *event);
  71 static gboolean gtk_statusbar_expose_event   (GtkWidget         *widget,
  72                                               GdkEventExpose    *event);
  73 static void     gtk_statusbar_size_request   (GtkWidget         *widget,
  74                                               GtkRequisition    *requisition);
  75 static void     gtk_statusbar_size_allocate  (GtkWidget         *widget,
  76                                               GtkAllocation     *allocation);
  77 static void     gtk_statusbar_create_window  (GtkStatusbar      *statusbar);
  78 static void     gtk_statusbar_destroy_window (GtkStatusbar      *statusbar);
  79 static void     gtk_statusbar_get_property   (GObject           *object,
  80                                               guint              prop_id,
  81                                               GValue            *value,
  82                                               GParamSpec        *pspec);
  83 static void    gtk_statusbar_set_property    (GObject           *object,
  84                                               guint              prop_id,
  85                                               const GValue      *value,
  86                                               GParamSpec        *pspec);
  87
  88 static GtkContainerClass *parent_class;
  89 static guint              statusbar_signals[SIGNAL_LAST] = { 0 };
  90
  91 GType
  92 gtk_statusbar_get_type (void)
  93 {
  94   static GType statusbar_type = 0;
  95
  96   if (!statusbar_type)
  97     {
  98       static const GTypeInfo statusbar_info =
  99       {
 100         sizeof (GtkStatusbarClass),
 101         NULL,           /* base_init */
 102         NULL,           /* base_finalize */
 103         (GClassInitFunc) gtk_statusbar_class_init,
 104         NULL,           /* class_finalize */
 105         NULL,           /* class_data */
 106         sizeof (GtkStatusbar),
 107         0,              /* n_preallocs */
 108         (GInstanceInitFunc) gtk_statusbar_init,
 109       };
 110
 111       statusbar_type = g_type_register_static (GTK_TYPE_HBOX, "GtkStatusbar",
 112                                                &statusbar_info, 0);
 113     }
 114
 115   return statusbar_type;
 116 }
 117
 118 static void
 119 gtk_statusbar_class_init (GtkStatusbarClass *class)
 120 {
 121   GObjectClass *gobject_class;
 122   GtkObjectClass *object_class;
 123   GtkWidgetClass *widget_class;
 124   GtkContainerClass *container_class;
 125
 126   gobject_class = (GObjectClass *) class;
 127   object_class = (GtkObjectClass *) class;
 128   widget_class = (GtkWidgetClass *) class;
 129   container_class = (GtkContainerClass *) class;
 130
 131   parent_class = g_type_class_peek_parent (class);
 132
 133   gobject_class->set_property = gtk_statusbar_set_property;
 134   gobject_class->get_property = gtk_statusbar_get_property;
 135
 136   object_class->destroy = gtk_statusbar_destroy;
 137
 138   widget_class->realize = gtk_statusbar_realize;
 139   widget_class->unrealize = gtk_statusbar_unrealize;
 140   widget_class->map = gtk_statusbar_map;
 141   widget_class->unmap = gtk_statusbar_unmap;
 142
 143   widget_class->button_press_event = gtk_statusbar_button_press;
 144   widget_class->expose_event = gtk_statusbar_expose_event;
 145
 146   widget_class->size_request = gtk_statusbar_size_request;
 147   widget_class->size_allocate = gtk_statusbar_size_allocate;
 148
 149   class->messages_mem_chunk = g_mem_chunk_new ("GtkStatusbar messages mem chunk",
 150                                                sizeof (GtkStatusbarMsg),
 151                                                sizeof (GtkStatusbarMsg) * 64,
 152                                                G_ALLOC_AND_FREE);
 153
 154   class->text_pushed = gtk_statusbar_update;
 155   class->text_popped = gtk_statusbar_update;
 156
 157   /**
 158    * GtkStatusbar:has-resize-grip:
 159    *
 160    * Whether the statusbar has a grip for resizing the toplevel window.
 161    *
 162    * Since: 2.4
 163    */
 164   g_object_class_install_property (gobject_class,
 165                                    PROP_HAS_RESIZE_GRIP,
 166                                    g_param_spec_boolean ("has_resize_grip",
 167                                                          P_("Has Resize Grip"),
 168                                                          P_("Whether the statusbar has a grip for resizing the toplevel"),
 169                                                          TRUE,
 170                                                          G_PARAM_READWRITE));
 171   statusbar_signals[SIGNAL_TEXT_PUSHED] =
 172     g_signal_new ("text_pushed",
 173                   G_OBJECT_CLASS_TYPE (class),
 174                   G_SIGNAL_RUN_LAST,
 175                   G_STRUCT_OFFSET (GtkStatusbarClass, text_pushed),
 176                   NULL, NULL,
 177                   _gtk_marshal_VOID__UINT_STRING,
 178                   G_TYPE_NONE, 2,
 179                   G_TYPE_UINT,
 180                   G_TYPE_STRING);
 181   statusbar_signals[SIGNAL_TEXT_POPPED] =
 182     g_signal_new ("text_popped",
 183                   G_OBJECT_CLASS_TYPE (class),
 184                   G_SIGNAL_RUN_LAST,
 185                   G_STRUCT_OFFSET (GtkStatusbarClass, text_popped),
 186                   NULL, NULL,
 187                   _gtk_marshal_VOID__UINT_STRING,
 188                   G_TYPE_NONE, 2,
 189                   G_TYPE_UINT,
 190                   G_TYPE_STRING);
 191
 192   gtk_widget_class_install_style_property (widget_class,
 193                                            g_param_spec_enum ("shadow_type",
 194                                                               P_("Shadow type"),
 195                                                               P_("Style of bevel around the statusbar text"),
 196                                                               GTK_TYPE_SHADOW_TYPE,
 197                                                               GTK_SHADOW_IN,
 198                                                               G_PARAM_READABLE));
 199 }
 200
 201 static void
 202 gtk_statusbar_init (GtkStatusbar *statusbar)
 203 {
 204   GtkBox *box;
 205   GtkShadowType shadow_type;
 206
 207   box = GTK_BOX (statusbar);
 208
 209   box->spacing = 2;
 210   box->homogeneous = FALSE;
 211
 212   statusbar->has_resize_grip = TRUE;
 213
 214   gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow_type", &shadow_type, NULL);
 215
 216   statusbar->frame = gtk_frame_new (NULL);
 217   gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
 218   gtk_box_pack_start (box, statusbar->frame, TRUE, TRUE, 0);
 219   gtk_widget_show (statusbar->frame);
 220
 221   statusbar->label = gtk_label_new ("");
 222   gtk_misc_set_alignment (GTK_MISC (statusbar->label), 0.0, 0.5);
 223   /* don't expand the size request for the label; if we
 224    * do that then toplevels weirdly resize
 225    */
 226   gtk_widget_set_size_request (statusbar->label, 1, -1);
 227   gtk_container_add (GTK_CONTAINER (statusbar->frame), statusbar->label);
 228   gtk_widget_show (statusbar->label);
 229
 230   statusbar->seq_context_id = 1;
 231   statusbar->seq_message_id = 1;
 232   statusbar->messages = NULL;
 233   statusbar->keys = NULL;
 234 }
 235
 236 GtkWidget*
 237 gtk_statusbar_new (void)
 238 {
 239   return g_object_new (GTK_TYPE_STATUSBAR, NULL);
 240 }
 241
 242 static void
 243 gtk_statusbar_update (GtkStatusbar *statusbar,
 244                       guint         context_id,
 245                       const gchar  *text)
 246 {
 247   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 248
 249   if (!text)
 250     text = "";
 251
 252   gtk_label_set_text (GTK_LABEL (statusbar->label), text);
 253 }
 254
 255 guint
 256 gtk_statusbar_get_context_id (GtkStatusbar *statusbar,
 257                               const gchar  *context_description)
 258 {
 259   gchar *string;
 260   guint *id;
 261
 262   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
 263   g_return_val_if_fail (context_description != NULL, 0);
 264
 265   /* we need to preserve namespaces on object datas */
 266   string = g_strconcat ("gtk-status-bar-context:", context_description, NULL);
 267
 268   id = g_object_get_data (G_OBJECT (statusbar), string);
 269   if (!id)
 270     {
 271       id = g_new (guint, 1);
 272       *id = statusbar->seq_context_id++;
 273       g_object_set_data_full (G_OBJECT (statusbar), string, id, g_free);
 274       statusbar->keys = g_slist_prepend (statusbar->keys, string);
 275     }
 276   else
 277     g_free (string);
 278
 279   return *id;
 280 }
 281
 282 guint
 283 gtk_statusbar_push (GtkStatusbar *statusbar,
 284                     guint         context_id,
 285                     const gchar  *text)
 286 {
 287   GtkStatusbarMsg *msg;
 288   GtkStatusbarClass *class;
 289
 290   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
 291   g_return_val_if_fail (text != NULL, 0);
 292
 293   class = GTK_STATUSBAR_GET_CLASS (statusbar);
 294   msg = g_chunk_new (GtkStatusbarMsg, class->messages_mem_chunk);
 295   msg->text = g_strdup (text);
 296   msg->context_id = context_id;
 297   msg->message_id = statusbar->seq_message_id++;
 298
 299   statusbar->messages = g_slist_prepend (statusbar->messages, msg);
 300
 301   g_signal_emit (statusbar,
 302                  statusbar_signals[SIGNAL_TEXT_PUSHED],
 303                  0,
 304                  msg->context_id,
 305                  msg->text);
 306
 307   return msg->message_id;
 308 }
 309
 310 void
 311 gtk_statusbar_pop (GtkStatusbar *statusbar,
 312                    guint         context_id)
 313 {
 314   GtkStatusbarMsg *msg;
 315
 316   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 317
 318   if (statusbar->messages)
 319     {
 320       GSList *list;
 321
 322       for (list = statusbar->messages; list; list = list->next)
 323         {
 324           msg = list->data;
 325
 326           if (msg->context_id == context_id)
 327             {
 328               GtkStatusbarClass *class;
 329
 330               class = GTK_STATUSBAR_GET_CLASS (statusbar);
 331
 332               statusbar->messages = g_slist_remove_link (statusbar->messages,
 333                                                          list);
 334               g_free (msg->text);
 335               g_mem_chunk_free (class->messages_mem_chunk, msg);
 336               g_slist_free_1 (list);
 337               break;
 338             }
 339         }
 340     }
 341
 342   msg = statusbar->messages ? statusbar->messages->data : NULL;
 343
 344   g_signal_emit (statusbar,
 345                  statusbar_signals[SIGNAL_TEXT_POPPED],
 346                  0,
 347                  (guint) (msg ? msg->context_id : 0),
 348                  msg ? msg->text : NULL);
 349 }
 350
 351 void
 352 gtk_statusbar_remove (GtkStatusbar *statusbar,
 353                       guint        context_id,
 354                       guint        message_id)
 355 {
 356   GtkStatusbarMsg *msg;
 357
 358   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 359   g_return_if_fail (message_id > 0);
 360
 361   msg = statusbar->messages ? statusbar->messages->data : NULL;
 362   if (msg)
 363     {
 364       GSList *list;
 365
 366       /* care about signal emission if the topmost item is removed */
 367       if (msg->context_id == context_id &&
 368           msg->message_id == message_id)
 369         {
 370           gtk_statusbar_pop (statusbar, context_id);
 371           return;
 372         }
 373
 374       for (list = statusbar->messages; list; list = list->next)
 375         {
 376           msg = list->data;
 377
 378           if (msg->context_id == context_id &&
 379               msg->message_id == message_id)
 380             {
 381               GtkStatusbarClass *class;
 382
 383               class = GTK_STATUSBAR_GET_CLASS (statusbar);
 384               statusbar->messages = g_slist_remove_link (statusbar->messages, list);
 385               g_free (msg->text);
 386               g_mem_chunk_free (class->messages_mem_chunk, msg);
 387               g_slist_free_1 (list);
 388
 389               break;
 390             }
 391         }
 392     }
 393 }
 394
 395 void
 396 gtk_statusbar_set_has_resize_grip (GtkStatusbar *statusbar,
 397                                    gboolean      setting)
 398 {
 399   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 400
 401   setting = setting != FALSE;
 402
 403   if (setting != statusbar->has_resize_grip)
 404     {
 405       statusbar->has_resize_grip = setting;
 406       gtk_widget_queue_draw (GTK_WIDGET (statusbar));
 407
 408       if (GTK_WIDGET_REALIZED (statusbar))
 409         {
 410           if (statusbar->has_resize_grip && statusbar->grip_window == NULL)
 411             gtk_statusbar_create_window (statusbar);
 412           else if (!statusbar->has_resize_grip && statusbar->grip_window != NULL)
 413             gtk_statusbar_destroy_window (statusbar);
 414         }
 415
 416       g_object_notify (G_OBJECT (statusbar), "has_resize_grip");
 417     }
 418 }
 419
 420 gboolean
 421 gtk_statusbar_get_has_resize_grip (GtkStatusbar *statusbar)
 422 {
 423   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), FALSE);
 424
 425   return statusbar->has_resize_grip;
 426 }
 427
 428 static void
 429 gtk_statusbar_destroy (GtkObject *object)
 430 {
 431   GtkStatusbar *statusbar;
 432   GtkStatusbarClass *class;
 433   GSList *list;
 434
 435   g_return_if_fail (GTK_IS_STATUSBAR (object));
 436
 437   statusbar = GTK_STATUSBAR (object);
 438   class = GTK_STATUSBAR_GET_CLASS (statusbar);
 439
 440   for (list = statusbar->messages; list; list = list->next)
 441     {
 442       GtkStatusbarMsg *msg;
 443
 444       msg = list->data;
 445       g_free (msg->text);
 446       g_mem_chunk_free (class->messages_mem_chunk, msg);
 447     }
 448   g_slist_free (statusbar->messages);
 449   statusbar->messages = NULL;
 450
 451   for (list = statusbar->keys; list; list = list->next)
 452     g_free (list->data);
 453   g_slist_free (statusbar->keys);
 454   statusbar->keys = NULL;
 455
 456   GTK_OBJECT_CLASS (parent_class)->destroy (object);
 457 }
 458
 459 static void
 460 gtk_statusbar_set_property (GObject      *object,
 461                             guint         prop_id,
 462                             const GValue *value,
 463                             GParamSpec   *pspec)
 464 {
 465   GtkStatusbar *statusbar = GTK_STATUSBAR (object);
 466
 467   switch (prop_id)
 468     {
 469     case PROP_HAS_RESIZE_GRIP:
 470       gtk_statusbar_set_has_resize_grip (statusbar, g_value_get_boolean (value));
 471       break;
 472     default:
 473       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 474       break;
 475     }
 476 }
 477
 478 static void
 479 gtk_statusbar_get_property (GObject    *object,
 480                             guint       prop_id,
 481                             GValue     *value,
 482                             GParamSpec *pspec)
 483 {
 484   GtkStatusbar *statusbar = GTK_STATUSBAR (object);
 485
 486   switch (prop_id)
 487     {
 488     case PROP_HAS_RESIZE_GRIP:
 489       g_value_set_boolean (value, statusbar->has_resize_grip);
 490       break;
 491     default:
 492       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 493       break;
 494     }
 495 }
 496
 497 static GdkWindowEdge
 498 get_grip_edge (GtkStatusbar *statusbar)
 499 {
 500   GtkWidget *widget = GTK_WIDGET (statusbar);
 501
 502   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 503     return GDK_WINDOW_EDGE_SOUTH_EAST;
 504   else
 505     return GDK_WINDOW_EDGE_SOUTH_WEST;
 506 }
 507
 508 static void
 509 get_grip_rect (GtkStatusbar *statusbar,
 510                GdkRectangle *rect)
 511 {
 512   GtkWidget *widget;
 513   gint w, h;
 514
 515   widget = GTK_WIDGET (statusbar);
 516
 517   /* These are in effect the max/default size of the grip. */
 518   w = 18;
 519   h = 18;
 520
 521   if (w > (widget->allocation.width))
 522     w = widget->allocation.width;
 523
 524   if (h > (widget->allocation.height - widget->style->ythickness))
 525     h = widget->allocation.height - widget->style->ythickness;
 526
 527   rect->width = w;
 528   rect->height = h;
 529   rect->y = widget->allocation.y + widget->allocation.height - h;
 530
 531   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 532       rect->x = widget->allocation.x + widget->allocation.width - w;
 533   else
 534       rect->x = widget->allocation.x + widget->style->xthickness;
 535 }
 536
 537 static void
 538 gtk_statusbar_create_window (GtkStatusbar *statusbar)
 539 {
 540   GtkWidget *widget;
 541   GdkWindowAttr attributes;
 542   gint attributes_mask;
 543   GdkRectangle rect;
 544
 545   g_return_if_fail (GTK_WIDGET_REALIZED (statusbar));
 546   g_return_if_fail (statusbar->has_resize_grip);
 547
 548   widget = GTK_WIDGET (statusbar);
 549
 550   get_grip_rect (statusbar, &rect);
 551
 552   attributes.x = rect.x;
 553   attributes.y = rect.y;
 554   attributes.width = rect.width;
 555   attributes.height = rect.height;
 556   attributes.window_type = GDK_WINDOW_CHILD;
 557   attributes.wclass = GDK_INPUT_ONLY;
 558   attributes.event_mask = gtk_widget_get_events (widget) |
 559     GDK_BUTTON_PRESS_MASK;
 560
 561   attributes_mask = GDK_WA_X | GDK_WA_Y;
 562
 563   statusbar->grip_window = gdk_window_new (widget->window,
 564                                            &attributes, attributes_mask);
 565   gdk_window_set_user_data (statusbar->grip_window, widget);
 566 }
 567
 568 static void
 569 gtk_statusbar_destroy_window (GtkStatusbar *statusbar)
 570 {
 571   gdk_window_set_user_data (statusbar->grip_window, NULL);
 572   gdk_window_destroy (statusbar->grip_window);
 573   statusbar->grip_window = NULL;
 574 }
 575
 576 static void
 577 gtk_statusbar_realize (GtkWidget *widget)
 578 {
 579   GtkStatusbar *statusbar;
 580
 581   statusbar = GTK_STATUSBAR (widget);
 582
 583   (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
 584
 585   if (statusbar->has_resize_grip)
 586     gtk_statusbar_create_window (statusbar);
 587 }
 588
 589 static void
 590 gtk_statusbar_unrealize (GtkWidget *widget)
 591 {
 592   GtkStatusbar *statusbar;
 593
 594   statusbar = GTK_STATUSBAR (widget);
 595
 596   if (statusbar->grip_window)
 597     gtk_statusbar_destroy_window (statusbar);
 598
 599   (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 600 }
 601
 602 static void
 603 gtk_statusbar_map (GtkWidget *widget)
 604 {
 605   GtkStatusbar *statusbar;
 606
 607   statusbar = GTK_STATUSBAR (widget);
 608
 609   (* GTK_WIDGET_CLASS (parent_class)->map) (widget);
 610
 611   if (statusbar->grip_window)
 612     gdk_window_show (statusbar->grip_window);
 613 }
 614
 615 static void
 616 gtk_statusbar_unmap (GtkWidget *widget)
 617 {
 618   GtkStatusbar *statusbar;
 619
 620   statusbar = GTK_STATUSBAR (widget);
 621
 622   if (statusbar->grip_window)
 623     gdk_window_hide (statusbar->grip_window);
 624
 625   (* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
 626 }
 627
 628 static gboolean
 629 gtk_statusbar_button_press (GtkWidget      *widget,
 630                             GdkEventButton *event)
 631 {
 632   GtkStatusbar *statusbar;
 633   GtkWidget *ancestor;
 634   GdkWindowEdge edge;
 635
 636   statusbar = GTK_STATUSBAR (widget);
 637
 638   if (!statusbar->has_resize_grip ||
 639     event->type != GDK_BUTTON_PRESS)
 640     return FALSE;
 641
 642   ancestor = gtk_widget_get_toplevel (widget);
 643
 644   if (!GTK_IS_WINDOW (ancestor))
 645     return FALSE;
 646
 647   edge = get_grip_edge (statusbar);
 648
 649   if (event->button == 1)
 650     gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 651                                   edge,
 652                                   event->button,
 653                                   event->x_root, event->y_root,
 654                                   event->time);
 655   else if (event->button == 2)
 656     gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 657                                 event->button,
 658                                 event->x_root, event->y_root,
 659                                 event->time);
 660   else
 661     return FALSE;
 662
 663   return TRUE;
 664 }
 665
 666 static gboolean
 667 gtk_statusbar_expose_event (GtkWidget      *widget,
 668                             GdkEventExpose *event)
 669 {
 670   GtkStatusbar *statusbar;
 671   GdkRectangle rect;
 672
 673   statusbar = GTK_STATUSBAR (widget);
 674
 675   GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
 676
 677   if (statusbar->has_resize_grip)
 678     {
 679       GdkWindowEdge edge;
 680
 681       edge = get_grip_edge (statusbar);
 682
 683       get_grip_rect (statusbar, &rect);
 684
 685       gtk_paint_resize_grip (widget->style,
 686                              widget->window,
 687                              GTK_WIDGET_STATE (widget),
 688                              NULL,
 689                              widget,
 690                              "statusbar",
 691                              edge,
 692                              rect.x, rect.y,
 693                              /* don't draw grip over the frame, though you
 694                               * can click on the frame.
 695                               */
 696                              rect.width - widget->style->xthickness,
 697                              rect.height - widget->style->ythickness);
 698     }
 699
 700   return FALSE;
 701 }
 702
 703 static void
 704 gtk_statusbar_size_request   (GtkWidget      *widget,
 705                               GtkRequisition *requisition)
 706 {
 707   GtkStatusbar *statusbar;
 708   GtkShadowType shadow_type;
 709
 710   statusbar = GTK_STATUSBAR (widget);
 711
 712   gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow_type", &shadow_type, NULL);
 713   gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
 714
 715   GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
 716
 717   if (statusbar->has_resize_grip)
 718     {
 719       GdkRectangle rect;
 720
 721       /* x, y in the grip rect depend on size allocation, but
 722        * w, h do not so this is OK
 723        */
 724       get_grip_rect (statusbar, &rect);
 725
 726       requisition->width += rect.width;
 727       requisition->height = MAX (requisition->height, rect.height);
 728     }
 729 }
 730
 731 static void
 732 gtk_statusbar_size_allocate  (GtkWidget     *widget,
 733                               GtkAllocation *allocation)
 734 {
 735   GtkStatusbar *statusbar;
 736
 737   statusbar = GTK_STATUSBAR (widget);
 738
 739   if (statusbar->has_resize_grip)
 740     {
 741       GdkRectangle rect;
 742       GtkRequisition saved_req;
 743
 744       widget->allocation = *allocation; /* get_grip_rect needs this info */
 745       get_grip_rect (statusbar, &rect);
 746
 747       if (statusbar->grip_window)
 748         gdk_window_move_resize (statusbar->grip_window,
 749                                 rect.x, rect.y,
 750                                 rect.width, rect.height);
 751
 752       /* enter the bad hack zone */
 753       saved_req = widget->requisition;
 754       widget->requisition.width -= rect.width; /* HBox::size_allocate needs this */
 755       if (widget->requisition.width < 0)
 756         widget->requisition.width = 0;
 757       GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 758       widget->requisition = saved_req;
 759     }
 760   else
 761     {
 762       /* chain up normally */
 763       GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 764     }
 765 }