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 <config.h>
  29 #include "gtkframe.h"
  30 #include "gtklabel.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkstatusbar.h"
  33 #include "gtkwindow.h"
  34 #include "gtkprivate.h"
  35 #include "gtkintl.h"
  36 #include "gtkalias.h"
  37
  38 typedef struct _GtkStatusbarMsg GtkStatusbarMsg;
  39
  40 struct _GtkStatusbarMsg
  41 {
  42   gchar *text;
  43   guint context_id;
  44   guint message_id;
  45 };
  46
  47 enum
  48 {
  49   SIGNAL_TEXT_PUSHED,
  50   SIGNAL_TEXT_POPPED,
  51   SIGNAL_LAST
  52 };
  53
  54 enum
  55 {
  56   PROP_ZERO,
  57   PROP_HAS_RESIZE_GRIP
  58 };
  59
  60 static void     gtk_statusbar_destroy           (GtkObject         *object);
  61 static void     gtk_statusbar_update            (GtkStatusbar      *statusbar,
  62                                                  guint              context_id,
  63                                                  const gchar       *text);
  64 static void     gtk_statusbar_size_allocate     (GtkWidget         *widget,
  65                                                  GtkAllocation     *allocation);
  66 static void     gtk_statusbar_realize           (GtkWidget         *widget);
  67 static void     gtk_statusbar_unrealize         (GtkWidget         *widget);
  68 static void     gtk_statusbar_map               (GtkWidget         *widget);
  69 static void     gtk_statusbar_unmap             (GtkWidget         *widget);
  70 static gboolean gtk_statusbar_button_press      (GtkWidget         *widget,
  71                                                  GdkEventButton    *event);
  72 static gboolean gtk_statusbar_expose_event      (GtkWidget         *widget,
  73                                                  GdkEventExpose    *event);
  74 static void     gtk_statusbar_size_request      (GtkWidget         *widget,
  75                                                  GtkRequisition    *requisition);
  76 static void     gtk_statusbar_size_allocate     (GtkWidget         *widget,
  77                                                  GtkAllocation     *allocation);
  78 static void     gtk_statusbar_direction_changed (GtkWidget         *widget,
  79                                                  GtkTextDirection   prev_dir);
  80 static void     gtk_statusbar_create_window     (GtkStatusbar      *statusbar);
  81 static void     gtk_statusbar_destroy_window    (GtkStatusbar      *statusbar);
  82 static void     gtk_statusbar_get_property      (GObject           *object,
  83                                                  guint              prop_id,
  84                                                  GValue            *value,
  85                                                  GParamSpec        *pspec);
  86 static void     gtk_statusbar_set_property      (GObject           *object,
  87                                                  guint              prop_id,
  88                                                  const GValue      *value,
  89                                                  GParamSpec        *pspec);
  90 static void     label_selectable_changed        (GtkWidget         *label,
  91                                                  GParamSpec        *pspec,
  92                                                  gpointer           data);
  93
  94
  95 static guint              statusbar_signals[SIGNAL_LAST] = { 0 };
  96
  97 G_DEFINE_TYPE (GtkStatusbar, gtk_statusbar, GTK_TYPE_HBOX)
  98
  99 static void
 100 gtk_statusbar_class_init (GtkStatusbarClass *class)
 101 {
 102   GObjectClass *gobject_class;
 103   GtkObjectClass *object_class;
 104   GtkWidgetClass *widget_class;
 105
 106   gobject_class = (GObjectClass *) class;
 107   object_class = (GtkObjectClass *) class;
 108   widget_class = (GtkWidgetClass *) class;
 109
 110   gobject_class->set_property = gtk_statusbar_set_property;
 111   gobject_class->get_property = gtk_statusbar_get_property;
 112
 113   object_class->destroy = gtk_statusbar_destroy;
 114
 115   widget_class->realize = gtk_statusbar_realize;
 116   widget_class->unrealize = gtk_statusbar_unrealize;
 117   widget_class->map = gtk_statusbar_map;
 118   widget_class->unmap = gtk_statusbar_unmap;
 119
 120   widget_class->button_press_event = gtk_statusbar_button_press;
 121   widget_class->expose_event = gtk_statusbar_expose_event;
 122
 123   widget_class->size_request = gtk_statusbar_size_request;
 124   widget_class->size_allocate = gtk_statusbar_size_allocate;
 125
 126   widget_class->direction_changed = gtk_statusbar_direction_changed;
 127
 128   class->text_pushed = gtk_statusbar_update;
 129   class->text_popped = gtk_statusbar_update;
 130
 131   /**
 132    * GtkStatusbar:has-resize-grip:
 133    *
 134    * Whether the statusbar has a grip for resizing the toplevel window.
 135    *
 136    * Since: 2.4
 137    */
 138   g_object_class_install_property (gobject_class,
 139                                    PROP_HAS_RESIZE_GRIP,
 140                                    g_param_spec_boolean ("has-resize-grip",
 141                                                          P_("Has Resize Grip"),
 142                                                          P_("Whether the statusbar has a grip for resizing the toplevel"),
 143                                                          TRUE,
 144                                                          GTK_PARAM_READWRITE));
 145   statusbar_signals[SIGNAL_TEXT_PUSHED] =
 146     g_signal_new (I_("text_pushed"),
 147                   G_OBJECT_CLASS_TYPE (class),
 148                   G_SIGNAL_RUN_LAST,
 149                   G_STRUCT_OFFSET (GtkStatusbarClass, text_pushed),
 150                   NULL, NULL,
 151                   _gtk_marshal_VOID__UINT_STRING,
 152                   G_TYPE_NONE, 2,
 153                   G_TYPE_UINT,
 154                   G_TYPE_STRING);
 155   statusbar_signals[SIGNAL_TEXT_POPPED] =
 156     g_signal_new (I_("text_popped"),
 157                   G_OBJECT_CLASS_TYPE (class),
 158                   G_SIGNAL_RUN_LAST,
 159                   G_STRUCT_OFFSET (GtkStatusbarClass, text_popped),
 160                   NULL, NULL,
 161                   _gtk_marshal_VOID__UINT_STRING,
 162                   G_TYPE_NONE, 2,
 163                   G_TYPE_UINT,
 164                   G_TYPE_STRING);
 165
 166   gtk_widget_class_install_style_property (widget_class,
 167                                            g_param_spec_enum ("shadow-type",
 168                                                               P_("Shadow type"),
 169                                                               P_("Style of bevel around the statusbar text"),
 170                                                               GTK_TYPE_SHADOW_TYPE,
 171                                                               GTK_SHADOW_IN,
 172                                                               GTK_PARAM_READABLE));
 173 }
 174
 175 static void
 176 gtk_statusbar_init (GtkStatusbar *statusbar)
 177 {
 178   GtkBox *box;
 179   GtkShadowType shadow_type;
 180
 181   box = GTK_BOX (statusbar);
 182
 183   box->spacing = 2;
 184   box->homogeneous = FALSE;
 185
 186   statusbar->has_resize_grip = TRUE;
 187
 188   gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow-type", &shadow_type, NULL);
 189
 190   statusbar->frame = gtk_frame_new (NULL);
 191   gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
 192   gtk_box_pack_start (box, statusbar->frame, TRUE, TRUE, 0);
 193   gtk_widget_show (statusbar->frame);
 194
 195   statusbar->label = gtk_label_new ("");
 196   gtk_label_set_single_line_mode (GTK_LABEL (statusbar->label), TRUE);
 197   gtk_misc_set_alignment (GTK_MISC (statusbar->label), 0.0, 0.5);
 198   g_signal_connect (statusbar->label, "notify::selectable",
 199                     G_CALLBACK (label_selectable_changed), statusbar);
 200   gtk_label_set_ellipsize (GTK_LABEL (statusbar->label), PANGO_ELLIPSIZE_END);
 201   gtk_container_add (GTK_CONTAINER (statusbar->frame), statusbar->label);
 202   gtk_widget_show (statusbar->label);
 203
 204   statusbar->seq_context_id = 1;
 205   statusbar->seq_message_id = 1;
 206   statusbar->messages = NULL;
 207   statusbar->keys = NULL;
 208 }
 209
 210 GtkWidget*
 211 gtk_statusbar_new (void)
 212 {
 213   return g_object_new (GTK_TYPE_STATUSBAR, NULL);
 214 }
 215
 216 static void
 217 gtk_statusbar_update (GtkStatusbar *statusbar,
 218                       guint         context_id,
 219                       const gchar  *text)
 220 {
 221   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 222
 223   if (!text)
 224     text = "";
 225
 226   gtk_label_set_text (GTK_LABEL (statusbar->label), text);
 227 }
 228
 229 guint
 230 gtk_statusbar_get_context_id (GtkStatusbar *statusbar,
 231                               const gchar  *context_description)
 232 {
 233   gchar *string;
 234   guint *id;
 235
 236   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
 237   g_return_val_if_fail (context_description != NULL, 0);
 238
 239   /* we need to preserve namespaces on object datas */
 240   string = g_strconcat ("gtk-status-bar-context:", context_description, NULL);
 241
 242   id = g_object_get_data (G_OBJECT (statusbar), string);
 243   if (!id)
 244     {
 245       id = g_new (guint, 1);
 246       *id = statusbar->seq_context_id++;
 247       g_object_set_data_full (G_OBJECT (statusbar), string, id, g_free);
 248       statusbar->keys = g_slist_prepend (statusbar->keys, string);
 249     }
 250   else
 251     g_free (string);
 252
 253   return *id;
 254 }
 255
 256 guint
 257 gtk_statusbar_push (GtkStatusbar *statusbar,
 258                     guint         context_id,
 259                     const gchar  *text)
 260 {
 261   GtkStatusbarMsg *msg;
 262   GtkStatusbarClass *class;
 263
 264   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), 0);
 265   g_return_val_if_fail (text != NULL, 0);
 266
 267   class = GTK_STATUSBAR_GET_CLASS (statusbar);
 268   msg = g_slice_new (GtkStatusbarMsg);
 269   msg->text = g_strdup (text);
 270   msg->context_id = context_id;
 271   msg->message_id = statusbar->seq_message_id++;
 272
 273   statusbar->messages = g_slist_prepend (statusbar->messages, msg);
 274
 275   g_signal_emit (statusbar,
 276                  statusbar_signals[SIGNAL_TEXT_PUSHED],
 277                  0,
 278                  msg->context_id,
 279                  msg->text);
 280
 281   return msg->message_id;
 282 }
 283
 284 void
 285 gtk_statusbar_pop (GtkStatusbar *statusbar,
 286                    guint         context_id)
 287 {
 288   GtkStatusbarMsg *msg;
 289
 290   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 291
 292   if (statusbar->messages)
 293     {
 294       GSList *list;
 295
 296       for (list = statusbar->messages; list; list = list->next)
 297         {
 298           msg = list->data;
 299
 300           if (msg->context_id == context_id)
 301             {
 302               GtkStatusbarClass *class;
 303
 304               class = GTK_STATUSBAR_GET_CLASS (statusbar);
 305
 306               statusbar->messages = g_slist_remove_link (statusbar->messages,
 307                                                          list);
 308               g_free (msg->text);
 309               g_slice_free (GtkStatusbarMsg, msg);
 310               g_slist_free_1 (list);
 311               break;
 312             }
 313         }
 314     }
 315
 316   msg = statusbar->messages ? statusbar->messages->data : NULL;
 317
 318   g_signal_emit (statusbar,
 319                  statusbar_signals[SIGNAL_TEXT_POPPED],
 320                  0,
 321                  (guint) (msg ? msg->context_id : 0),
 322                  msg ? msg->text : NULL);
 323 }
 324
 325 void
 326 gtk_statusbar_remove (GtkStatusbar *statusbar,
 327                       guint        context_id,
 328                       guint        message_id)
 329 {
 330   GtkStatusbarMsg *msg;
 331
 332   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 333   g_return_if_fail (message_id > 0);
 334
 335   msg = statusbar->messages ? statusbar->messages->data : NULL;
 336   if (msg)
 337     {
 338       GSList *list;
 339
 340       /* care about signal emission if the topmost item is removed */
 341       if (msg->context_id == context_id &&
 342           msg->message_id == message_id)
 343         {
 344           gtk_statusbar_pop (statusbar, context_id);
 345           return;
 346         }
 347
 348       for (list = statusbar->messages; list; list = list->next)
 349         {
 350           msg = list->data;
 351
 352           if (msg->context_id == context_id &&
 353               msg->message_id == message_id)
 354             {
 355               GtkStatusbarClass *class;
 356
 357               class = GTK_STATUSBAR_GET_CLASS (statusbar);
 358               statusbar->messages = g_slist_remove_link (statusbar->messages, list);
 359               g_free (msg->text);
 360               g_slice_free (GtkStatusbarMsg, msg);
 361               g_slist_free_1 (list);
 362
 363               break;
 364             }
 365         }
 366     }
 367 }
 368
 369 void
 370 gtk_statusbar_set_has_resize_grip (GtkStatusbar *statusbar,
 371                                    gboolean      setting)
 372 {
 373   g_return_if_fail (GTK_IS_STATUSBAR (statusbar));
 374
 375   setting = setting != FALSE;
 376
 377   if (setting != statusbar->has_resize_grip)
 378     {
 379       statusbar->has_resize_grip = setting;
 380       gtk_widget_queue_resize (statusbar->label);
 381       gtk_widget_queue_draw (GTK_WIDGET (statusbar));
 382
 383       if (GTK_WIDGET_REALIZED (statusbar))
 384         {
 385           if (statusbar->has_resize_grip && statusbar->grip_window == NULL)
 386             {
 387               gtk_statusbar_create_window (statusbar);
 388               if (GTK_WIDGET_MAPPED (statusbar))
 389                 gdk_window_show (statusbar->grip_window);
 390             }
 391           else if (!statusbar->has_resize_grip && statusbar->grip_window != NULL)
 392             gtk_statusbar_destroy_window (statusbar);
 393         }
 394
 395       g_object_notify (G_OBJECT (statusbar), "has-resize-grip");
 396     }
 397 }
 398
 399 gboolean
 400 gtk_statusbar_get_has_resize_grip (GtkStatusbar *statusbar)
 401 {
 402   g_return_val_if_fail (GTK_IS_STATUSBAR (statusbar), FALSE);
 403
 404   return statusbar->has_resize_grip;
 405 }
 406
 407 static void
 408 gtk_statusbar_destroy (GtkObject *object)
 409 {
 410   GtkStatusbar *statusbar;
 411   GtkStatusbarClass *class;
 412   GSList *list;
 413
 414   g_return_if_fail (GTK_IS_STATUSBAR (object));
 415
 416   statusbar = GTK_STATUSBAR (object);
 417   class = GTK_STATUSBAR_GET_CLASS (statusbar);
 418
 419   for (list = statusbar->messages; list; list = list->next)
 420     {
 421       GtkStatusbarMsg *msg;
 422
 423       msg = list->data;
 424       g_free (msg->text);
 425       g_slice_free (GtkStatusbarMsg, msg);
 426     }
 427   g_slist_free (statusbar->messages);
 428   statusbar->messages = NULL;
 429
 430   for (list = statusbar->keys; list; list = list->next)
 431     g_free (list->data);
 432   g_slist_free (statusbar->keys);
 433   statusbar->keys = NULL;
 434
 435   GTK_OBJECT_CLASS (gtk_statusbar_parent_class)->destroy (object);
 436 }
 437
 438 static void
 439 gtk_statusbar_set_property (GObject      *object,
 440                             guint         prop_id,
 441                             const GValue *value,
 442                             GParamSpec   *pspec)
 443 {
 444   GtkStatusbar *statusbar = GTK_STATUSBAR (object);
 445
 446   switch (prop_id)
 447     {
 448     case PROP_HAS_RESIZE_GRIP:
 449       gtk_statusbar_set_has_resize_grip (statusbar, g_value_get_boolean (value));
 450       break;
 451     default:
 452       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 453       break;
 454     }
 455 }
 456
 457 static void
 458 gtk_statusbar_get_property (GObject    *object,
 459                             guint       prop_id,
 460                             GValue     *value,
 461                             GParamSpec *pspec)
 462 {
 463   GtkStatusbar *statusbar = GTK_STATUSBAR (object);
 464
 465   switch (prop_id)
 466     {
 467     case PROP_HAS_RESIZE_GRIP:
 468       g_value_set_boolean (value, statusbar->has_resize_grip);
 469       break;
 470     default:
 471       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 472       break;
 473     }
 474 }
 475
 476 static GdkWindowEdge
 477 get_grip_edge (GtkStatusbar *statusbar)
 478 {
 479   GtkWidget *widget = GTK_WIDGET (statusbar);
 480
 481   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 482     return GDK_WINDOW_EDGE_SOUTH_EAST;
 483   else
 484     return GDK_WINDOW_EDGE_SOUTH_WEST;
 485 }
 486
 487 static void
 488 get_grip_rect (GtkStatusbar *statusbar,
 489                GdkRectangle *rect)
 490 {
 491   GtkWidget *widget;
 492   gint w, h;
 493
 494   widget = GTK_WIDGET (statusbar);
 495
 496   /* These are in effect the max/default size of the grip. */
 497   w = 18;
 498   h = 18;
 499
 500   if (w > widget->allocation.width)
 501     w = widget->allocation.width;
 502
 503   if (h > widget->allocation.height - widget->style->ythickness)
 504     h = widget->allocation.height - widget->style->ythickness;
 505
 506   rect->width = w;
 507   rect->height = h;
 508   rect->y = widget->allocation.y + widget->allocation.height - h;
 509
 510   if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 511     rect->x = widget->allocation.x + widget->allocation.width - w;
 512   else
 513     rect->x = widget->allocation.x + widget->style->xthickness;
 514 }
 515
 516 static void
 517 set_grip_cursor (GtkStatusbar *statusbar)
 518 {
 519   if (statusbar->has_resize_grip)
 520     {
 521       GtkWidget *widget = GTK_WIDGET (statusbar);
 522       GdkDisplay *display = gtk_widget_get_display (widget);
 523       GdkCursorType cursor_type;
 524       GdkCursor *cursor;
 525
 526       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 527         cursor_type = GDK_BOTTOM_RIGHT_CORNER;
 528       else
 529         cursor_type = GDK_BOTTOM_LEFT_CORNER;
 530
 531       cursor = gdk_cursor_new_for_display (display, cursor_type);
 532       gdk_window_set_cursor (statusbar->grip_window, cursor);
 533       gdk_cursor_unref (cursor);
 534     }
 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
 566   gdk_window_set_user_data (statusbar->grip_window, widget);
 567
 568   set_grip_cursor (statusbar);
 569 }
 570
 571 static void
 572 gtk_statusbar_direction_changed (GtkWidget        *widget,
 573                                  GtkTextDirection  prev_dir)
 574 {
 575   GtkStatusbar *statusbar = GTK_STATUSBAR (widget);
 576
 577   set_grip_cursor (statusbar);
 578 }
 579
 580 static void
 581 gtk_statusbar_destroy_window (GtkStatusbar *statusbar)
 582 {
 583   gdk_window_set_user_data (statusbar->grip_window, NULL);
 584   gdk_window_destroy (statusbar->grip_window);
 585   statusbar->grip_window = NULL;
 586 }
 587
 588 static void
 589 gtk_statusbar_realize (GtkWidget *widget)
 590 {
 591   GtkStatusbar *statusbar;
 592
 593   statusbar = GTK_STATUSBAR (widget);
 594
 595   (* GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->realize) (widget);
 596
 597   if (statusbar->has_resize_grip)
 598     gtk_statusbar_create_window (statusbar);
 599 }
 600
 601 static void
 602 gtk_statusbar_unrealize (GtkWidget *widget)
 603 {
 604   GtkStatusbar *statusbar;
 605
 606   statusbar = GTK_STATUSBAR (widget);
 607
 608   if (statusbar->grip_window)
 609     gtk_statusbar_destroy_window (statusbar);
 610
 611   (* GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->unrealize) (widget);
 612 }
 613
 614 static void
 615 gtk_statusbar_map (GtkWidget *widget)
 616 {
 617   GtkStatusbar *statusbar;
 618
 619   statusbar = GTK_STATUSBAR (widget);
 620
 621   (* GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->map) (widget);
 622
 623   if (statusbar->grip_window)
 624     gdk_window_show (statusbar->grip_window);
 625 }
 626
 627 static void
 628 gtk_statusbar_unmap (GtkWidget *widget)
 629 {
 630   GtkStatusbar *statusbar;
 631
 632   statusbar = GTK_STATUSBAR (widget);
 633
 634   if (statusbar->grip_window)
 635     gdk_window_hide (statusbar->grip_window);
 636
 637   (* GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->unmap) (widget);
 638 }
 639
 640 static gboolean
 641 gtk_statusbar_button_press (GtkWidget      *widget,
 642                             GdkEventButton *event)
 643 {
 644   GtkStatusbar *statusbar;
 645   GtkWidget *ancestor;
 646   GdkWindowEdge edge;
 647
 648   statusbar = GTK_STATUSBAR (widget);
 649
 650   if (!statusbar->has_resize_grip ||
 651       event->type != GDK_BUTTON_PRESS ||
 652       event->window != statusbar->grip_window)
 653     return FALSE;
 654
 655   ancestor = gtk_widget_get_toplevel (widget);
 656
 657   if (!GTK_IS_WINDOW (ancestor))
 658     return FALSE;
 659
 660   edge = get_grip_edge (statusbar);
 661
 662   if (event->button == 1)
 663     gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 664                                   edge,
 665                                   event->button,
 666                                   event->x_root, event->y_root,
 667                                   event->time);
 668   else if (event->button == 2)
 669     gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 670                                 event->button,
 671                                 event->x_root, event->y_root,
 672                                 event->time);
 673   else
 674     return FALSE;
 675
 676   return TRUE;
 677 }
 678
 679 static gboolean
 680 gtk_statusbar_expose_event (GtkWidget      *widget,
 681                             GdkEventExpose *event)
 682 {
 683   GtkStatusbar *statusbar;
 684   GdkRectangle rect;
 685
 686   statusbar = GTK_STATUSBAR (widget);
 687
 688   GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->expose_event (widget, event);
 689
 690   if (statusbar->has_resize_grip)
 691     {
 692       GdkWindowEdge edge;
 693
 694       edge = get_grip_edge (statusbar);
 695
 696       get_grip_rect (statusbar, &rect);
 697
 698       gtk_paint_resize_grip (widget->style,
 699                              widget->window,
 700                              GTK_WIDGET_STATE (widget),
 701                              NULL,
 702                              widget,
 703                              "statusbar",
 704                              edge,
 705                              rect.x, rect.y,
 706                              /* don't draw grip over the frame, though you
 707                               * can click on the frame.
 708                               */
 709                              rect.width - widget->style->xthickness,
 710                              rect.height - widget->style->ythickness);
 711     }
 712
 713   return FALSE;
 714 }
 715
 716 static void
 717 gtk_statusbar_size_request (GtkWidget      *widget,
 718                             GtkRequisition *requisition)
 719 {
 720   GtkStatusbar *statusbar;
 721   GtkShadowType shadow_type;
 722
 723   statusbar = GTK_STATUSBAR (widget);
 724
 725   gtk_widget_style_get (GTK_WIDGET (statusbar), "shadow-type", &shadow_type, NULL);
 726   gtk_frame_set_shadow_type (GTK_FRAME (statusbar->frame), shadow_type);
 727
 728   GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->size_request (widget, requisition);
 729 }
 730
 731 /* look for extra children between the frame containing
 732  * the label and where we want to draw the resize grip
 733  */
 734 static gboolean
 735 has_extra_children (GtkStatusbar *statusbar)
 736 {
 737   GList *l;
 738   GtkBoxChild *child, *frame;
 739
 740   frame = NULL;
 741   for (l = GTK_BOX (statusbar)->children; l; l = l->next)
 742     {
 743       frame = l->data;
 744
 745       if (frame->widget == statusbar->frame)
 746         break;
 747     }
 748
 749   for (l = l->next; l; l = l->next)
 750     {
 751       child = l->data;
 752
 753       if (!GTK_WIDGET_VISIBLE (child->widget))
 754         continue;
 755
 756       if (frame->pack == GTK_PACK_START || child->pack == GTK_PACK_END)
 757         return TRUE;
 758     }
 759
 760   return FALSE;
 761 }
 762
 763 static void
 764 gtk_statusbar_size_allocate  (GtkWidget     *widget,
 765                               GtkAllocation *allocation)
 766 {
 767   GtkStatusbar *statusbar = GTK_STATUSBAR (widget);
 768   gboolean extra_children = FALSE;
 769   GdkRectangle rect;
 770
 771   if (statusbar->has_resize_grip)
 772     {
 773       widget->allocation = *allocation;
 774       get_grip_rect (statusbar, &rect);
 775
 776       extra_children = has_extra_children (statusbar);
 777
 778       /* If there are extra children, we don't want them to occupy
 779        * the space where we draw the resize grip, so we temporarily
 780        * shrink the allocation.
 781        * If there are no extra children, we want the frame to get
 782        * the full allocation, and we fix up the allocation of the
 783        * label afterwards to make room for the grip.
 784        */
 785       if (extra_children)
 786         {
 787           allocation->width -= rect.width;
 788           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 789             allocation->x += rect.width;
 790         }
 791     }
 792
 793   /* chain up normally */
 794   GTK_WIDGET_CLASS (gtk_statusbar_parent_class)->size_allocate (widget, allocation);
 795
 796   if (statusbar->has_resize_grip)
 797     {
 798       if (statusbar->grip_window)
 799         {
 800           gdk_window_raise (statusbar->grip_window);
 801           gdk_window_move_resize (statusbar->grip_window,
 802                                   rect.x, rect.y,
 803                                   rect.width, rect.height);
 804         }
 805
 806       if (extra_children)
 807         {
 808           allocation->width += rect.width;
 809           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 810             allocation->x -= rect.width;
 811
 812           widget->allocation = *allocation;
 813         }
 814       else
 815         {
 816           if (statusbar->label->allocation.width + rect.width > statusbar->frame->allocation.width)
 817             {
 818               /* shrink the label to make room for the grip */
 819               *allocation = statusbar->label->allocation;
 820               allocation->width = MAX (1, allocation->width - rect.width);
 821               if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 822                 allocation->x += statusbar->label->allocation.width - allocation->width;
 823
 824               gtk_widget_size_allocate (statusbar->label, allocation);
 825             }
 826         }
 827     }
 828 }
 829
 830 static void
 831 label_selectable_changed (GtkWidget  *label,
 832                           GParamSpec *pspec,
 833                           gpointer    data)
 834 {
 835   GtkStatusbar *statusbar = GTK_STATUSBAR (data);
 836
 837   if (statusbar &&
 838       statusbar->has_resize_grip && statusbar->grip_window)
 839     gdk_window_raise (statusbar->grip_window);
 840 }
 841
 842 #define __GTK_STATUSBAR_C__
 843 #include "gtkaliasdef.c"