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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19 #include <stdarg.h>
  20 #include <string.h>
  21 #include "gtkcontainer.h"
  22 #include "gtkmain.h"
  23 #include "gtkrc.h"
  24 #include "gtkselection.h"
  25 #include "gtksignal.h"
  26 #include "gtkwidget.h"
  27 #include "gtkwindow.h"
  28 #include "gtkprivate.h"
  29 #include "gdk/gdk.h"
  30 #include "gdk/gdkx.h"
  31
  32
  33 #define WIDGET_CLASS(w)  GTK_WIDGET_CLASS (GTK_OBJECT (w)->klass)
  34
  35
  36 enum {
  37   SHOW,
  38   HIDE,
  39   MAP,
  40   UNMAP,
  41   REALIZE,
  42   UNREALIZE,
  43   DRAW,
  44   DRAW_FOCUS,
  45   DRAW_DEFAULT,
  46   SIZE_REQUEST,
  47   SIZE_ALLOCATE,
  48   STATE_CHANGED,
  49   PARENT_SET,
  50   STYLE_SET,
  51   INSTALL_ACCELERATOR,
  52   REMOVE_ACCELERATOR,
  53   EVENT,
  54   BUTTON_PRESS_EVENT,
  55   BUTTON_RELEASE_EVENT,
  56   MOTION_NOTIFY_EVENT,
  57   DELETE_EVENT,
  58   DESTROY_EVENT,
  59   EXPOSE_EVENT,
  60   KEY_PRESS_EVENT,
  61   KEY_RELEASE_EVENT,
  62   ENTER_NOTIFY_EVENT,
  63   LEAVE_NOTIFY_EVENT,
  64   CONFIGURE_EVENT,
  65   FOCUS_IN_EVENT,
  66   FOCUS_OUT_EVENT,
  67   MAP_EVENT,
  68   UNMAP_EVENT,
  69   PROPERTY_NOTIFY_EVENT,
  70   SELECTION_CLEAR_EVENT,
  71   SELECTION_REQUEST_EVENT,
  72   SELECTION_NOTIFY_EVENT,
  73   SELECTION_RECEIVED,
  74   PROXIMITY_IN_EVENT,
  75   PROXIMITY_OUT_EVENT,
  76   DRAG_BEGIN_EVENT,
  77   DRAG_REQUEST_EVENT,
  78   DRAG_END_EVENT,
  79   DROP_ENTER_EVENT,
  80   DROP_LEAVE_EVENT,
  81   DROP_DATA_AVAILABLE_EVENT,
  82   OTHER_EVENT,
  83   CLIENT_EVENT,
  84   NO_EXPOSE_EVENT,
  85   LAST_SIGNAL
  86 };
  87
  88 enum {
  89   ARG_0,
  90   ARG_NAME,
  91   ARG_PARENT,
  92   ARG_X,
  93   ARG_Y,
  94   ARG_WIDTH,
  95   ARG_HEIGHT,
  96   ARG_VISIBLE,
  97   ARG_SENSITIVE,
  98   ARG_CAN_FOCUS,
  99   ARG_HAS_FOCUS,
 100   ARG_CAN_DEFAULT,
 101   ARG_HAS_DEFAULT,
 102   ARG_STYLE,
 103   ARG_EVENTS,
 104   ARG_EXTENSION_EVENTS
 105 };
 106
 107
 108 typedef void (*GtkWidgetSignal1) (GtkObject *object,
 109                                   gpointer   arg1,
 110                                   gpointer   data);
 111 typedef gint (*GtkWidgetSignal2) (GtkObject *object,
 112                                   gpointer   arg1,
 113                                   gchar      arg2,
 114                                   gchar      arg3,
 115                                   gpointer   data);
 116 typedef void (*GtkWidgetSignal3) (GtkObject *object,
 117                                   gpointer   arg1,
 118                                   gpointer   data);
 119 typedef gint (*GtkWidgetSignal4) (GtkObject *object,
 120                                   gpointer   arg1,
 121                                   gpointer   data);
 122 typedef void (*GtkWidgetSignal5) (GtkObject *object,
 123                                   guint      arg1,
 124                                   gpointer   data);
 125 typedef void (*GtkWidgetSignal6) (GtkObject *object,
 126                                   GtkObject *arg1,
 127                                   gpointer   data);
 128 typedef void (*GtkWidgetSignal7) (GtkObject *object,
 129                                   gpointer   arg1,
 130                                   gpointer   data);
 131
 132 typedef struct  _GtkStateData    GtkStateData;
 133
 134 struct _GtkStateData
 135 {
 136   GtkStateType  state;
 137   guint         state_restauration : 1;
 138   guint         parent_sensitive : 1;
 139 };
 140
 141
 142 static void gtk_widget_marshal_signal_1 (GtkObject      *object,
 143                                          GtkSignalFunc   func,
 144                                          gpointer        func_data,
 145                                          GtkArg         *args);
 146 static void gtk_widget_marshal_signal_2 (GtkObject      *object,
 147                                          GtkSignalFunc   func,
 148                                          gpointer        func_data,
 149                                          GtkArg         *args);
 150 static void gtk_widget_marshal_signal_3 (GtkObject      *object,
 151                                          GtkSignalFunc   func,
 152                                          gpointer        func_data,
 153                                          GtkArg         *args);
 154 static void gtk_widget_marshal_signal_4 (GtkObject      *object,
 155                                          GtkSignalFunc   func,
 156                                          gpointer        func_data,
 157                                          GtkArg         *args);
 158 static void gtk_widget_marshal_signal_5 (GtkObject      *object,
 159                                          GtkSignalFunc   func,
 160                                          gpointer        func_data,
 161                                          GtkArg         *args);
 162 static void gtk_widget_marshal_signal_6 (GtkObject      *object,
 163                                          GtkSignalFunc   func,
 164                                          gpointer        func_data,
 165                                          GtkArg         *args);
 166 static void gtk_widget_marshal_signal_7 (GtkObject      *object,
 167                                          GtkSignalFunc   func,
 168                                          gpointer        func_data,
 169                                          GtkArg         *args);
 170
 171 static void gtk_widget_class_init                (GtkWidgetClass    *klass);
 172 static void gtk_widget_init                      (GtkWidget         *widget);
 173 static void gtk_widget_set_arg                   (GtkWidget         *widget,
 174                                                   GtkArg            *arg,
 175                                                   guint              arg_id);
 176 static void gtk_widget_get_arg                   (GtkWidget         *widget,
 177                                                   GtkArg            *arg,
 178                                                   guint              arg_id);
 179 static void gtk_widget_shutdown                  (GtkObject         *object);
 180 static void gtk_widget_real_destroy              (GtkObject         *object);
 181 static void gtk_widget_finalize                  (GtkObject         *object);
 182 static void gtk_widget_real_show                 (GtkWidget         *widget);
 183 static void gtk_widget_real_hide                 (GtkWidget         *widget);
 184 static void gtk_widget_real_map                  (GtkWidget         *widget);
 185 static void gtk_widget_real_unmap                (GtkWidget         *widget);
 186 static void gtk_widget_real_realize              (GtkWidget         *widget);
 187 static void gtk_widget_real_unrealize            (GtkWidget         *widget);
 188 static void gtk_widget_real_draw                 (GtkWidget         *widget,
 189                                                   GdkRectangle      *area);
 190 static gint gtk_widget_real_queue_draw           (GtkWidget         *widget);
 191 static void gtk_widget_real_size_allocate        (GtkWidget         *widget,
 192                                                   GtkAllocation     *allocation);
 193 static void gtk_widget_style_set                 (GtkWidget         *widget,
 194                                                   GtkStyle          *previous_style);
 195
 196 static GdkColormap* gtk_widget_peek_colormap (void);
 197 static GdkVisual*   gtk_widget_peek_visual   (void);
 198 static GtkStyle*    gtk_widget_peek_style    (void);
 199
 200 static void gtk_widget_reparent_container_child  (GtkWidget     *widget,
 201                                                   gpointer       client_data);
 202 static void gtk_widget_propagate_state           (GtkWidget     *widget,
 203                                                   GtkStateData  *data);
 204 static void gtk_widget_draw_children_recurse     (GtkWidget     *widget,
 205                                                   gpointer       client_data);
 206 static void gtk_widget_set_style_internal        (GtkWidget     *widget,
 207                                                   GtkStyle      *style,
 208                                                   gboolean       initial_emission);
 209 static void gtk_widget_set_style_recurse         (GtkWidget     *widget,
 210                                                   gpointer       client_data);
 211
 212 extern GtkArg* gtk_object_collect_args (guint   *nargs,
 213                                         va_list  args1,
 214                                         va_list  args2);
 215
 216 static GtkWidgetAuxInfo* gtk_widget_aux_info_new     (void);
 217 static void              gtk_widget_aux_info_destroy (GtkWidgetAuxInfo *aux_info);
 218
 219 static GtkObjectClass *parent_class = NULL;
 220 static guint widget_signals[LAST_SIGNAL] = { 0 };
 221
 222 static GMemChunk *aux_info_mem_chunk = NULL;
 223
 224 static GdkColormap *default_colormap = NULL;
 225 static GdkVisual *default_visual = NULL;
 226 static GtkStyle *default_style = NULL;
 227
 228 static GSList *colormap_stack = NULL;
 229 static GSList *visual_stack = NULL;
 230 static GSList *style_stack = NULL;
 231
 232 static GSList *gtk_widget_redraw_queue = NULL;
 233 static GSList *gtk_widget_resize_queue = NULL;
 234
 235 static const gchar *aux_info_key = "gtk-aux-info";
 236 static guint        aux_info_key_id = 0;
 237 static const gchar *event_key = "gtk-event-mask";
 238 static guint        event_key_id = 0;
 239 static const gchar *extension_event_key = "gtk-extension-event-mode";
 240 static guint        extension_event_key_id = 0;
 241 static const gchar *parent_window_key = "gtk-parent-window";
 242 static guint        parent_window_key_id = 0;
 243 static const gchar *saved_default_style_key = "gtk-saved-default-style";
 244 static guint        saved_default_style_key_id = 0;
 245 static const gchar *shape_info_key = "gtk-shape-info";
 246 static const gchar *colormap_key = "gtk-colormap";
 247 static const gchar *visual_key = "gtk-visual";
 248
 249
 250
 251 /*****************************************
 252  * gtk_widget_get_type:
 253  *
 254  *   arguments:
 255  *
 256  *   results:
 257  *****************************************/
 258
 259 GtkType
 260 gtk_widget_get_type (void)
 261 {
 262   static GtkType widget_type = 0;
 263
 264   if (!widget_type)
 265     {
 266       GtkTypeInfo widget_info =
 267       {
 268         "GtkWidget",
 269         sizeof (GtkWidget),
 270         sizeof (GtkWidgetClass),
 271         (GtkClassInitFunc) gtk_widget_class_init,
 272         (GtkObjectInitFunc) gtk_widget_init,
 273         (GtkArgSetFunc) gtk_widget_set_arg,
 274         (GtkArgGetFunc) gtk_widget_get_arg,
 275       };
 276
 277       widget_type = gtk_type_unique (gtk_object_get_type (), &widget_info);
 278     }
 279
 280   return widget_type;
 281 }
 282
 283 /*****************************************
 284  * gtk_widget_class_init:
 285  *
 286  *   arguments:
 287  *
 288  *   results:
 289  *****************************************/
 290
 291 static void
 292 gtk_widget_class_init (GtkWidgetClass *klass)
 293 {
 294   GtkObjectClass *object_class;
 295
 296   object_class = (GtkObjectClass*) klass;
 297
 298   parent_class = gtk_type_class (gtk_object_get_type ());
 299
 300   gtk_object_add_arg_type ("GtkWidget::name", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_NAME);
 301   gtk_object_add_arg_type ("GtkWidget::parent", GTK_TYPE_CONTAINER, GTK_ARG_READWRITE, ARG_PARENT);
 302   gtk_object_add_arg_type ("GtkWidget::x", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_X);
 303   gtk_object_add_arg_type ("GtkWidget::y", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_Y);
 304   gtk_object_add_arg_type ("GtkWidget::width", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_WIDTH);
 305   gtk_object_add_arg_type ("GtkWidget::height", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_HEIGHT);
 306   gtk_object_add_arg_type ("GtkWidget::visible", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_VISIBLE);
 307   gtk_object_add_arg_type ("GtkWidget::sensitive", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_SENSITIVE);
 308   gtk_object_add_arg_type ("GtkWidget::can_focus", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_CAN_FOCUS);
 309   gtk_object_add_arg_type ("GtkWidget::has_focus", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HAS_FOCUS);
 310   gtk_object_add_arg_type ("GtkWidget::can_default", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_CAN_DEFAULT);
 311   gtk_object_add_arg_type ("GtkWidget::has_default", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HAS_DEFAULT);
 312   gtk_object_add_arg_type ("GtkWidget::style", GTK_TYPE_STYLE, GTK_ARG_READWRITE, ARG_STYLE);
 313   gtk_object_add_arg_type ("GtkWidget::events", GTK_TYPE_GDK_EVENT_MASK, GTK_ARG_READWRITE, ARG_EVENTS);
 314   gtk_object_add_arg_type ("GtkWidget::extension_events", GTK_TYPE_GDK_EVENT_MASK, GTK_ARG_READWRITE, ARG_EXTENSION_EVENTS);
 315
 316   widget_signals[SHOW] =
 317     gtk_signal_new ("show",
 318                     GTK_RUN_FIRST,
 319                     object_class->type,
 320                     GTK_SIGNAL_OFFSET (GtkWidgetClass, show),
 321                     gtk_signal_default_marshaller,
 322                     GTK_TYPE_NONE, 0);
 323   widget_signals[HIDE] =
 324     gtk_signal_new ("hide",
 325                     GTK_RUN_FIRST,
 326                     object_class->type,
 327                     GTK_SIGNAL_OFFSET (GtkWidgetClass, hide),
 328                     gtk_signal_default_marshaller,
 329                     GTK_TYPE_NONE, 0);
 330   widget_signals[MAP] =
 331     gtk_signal_new ("map",
 332                     GTK_RUN_FIRST,
 333                     object_class->type,
 334                     GTK_SIGNAL_OFFSET (GtkWidgetClass, map),
 335                     gtk_signal_default_marshaller,
 336                     GTK_TYPE_NONE, 0);
 337   widget_signals[UNMAP] =
 338     gtk_signal_new ("unmap",
 339                     GTK_RUN_FIRST,
 340                     object_class->type,
 341                     GTK_SIGNAL_OFFSET (GtkWidgetClass, unmap),
 342                     gtk_signal_default_marshaller,
 343                     GTK_TYPE_NONE, 0);
 344   widget_signals[REALIZE] =
 345     gtk_signal_new ("realize",
 346                     GTK_RUN_FIRST,
 347                     object_class->type,
 348                     GTK_SIGNAL_OFFSET (GtkWidgetClass, realize),
 349                     gtk_signal_default_marshaller,
 350                     GTK_TYPE_NONE, 0);
 351   widget_signals[UNREALIZE] =
 352     gtk_signal_new ("unrealize",
 353                     GTK_RUN_FIRST,
 354                     object_class->type,
 355                     GTK_SIGNAL_OFFSET (GtkWidgetClass, unrealize),
 356                     gtk_signal_default_marshaller,
 357                     GTK_TYPE_NONE, 0);
 358   widget_signals[DRAW] =
 359     gtk_signal_new ("draw",
 360                     GTK_RUN_FIRST,
 361                     object_class->type,
 362                     GTK_SIGNAL_OFFSET (GtkWidgetClass, draw),
 363                     gtk_widget_marshal_signal_1,
 364                     GTK_TYPE_NONE, 1,
 365                     GTK_TYPE_POINTER);
 366   widget_signals[DRAW_FOCUS] =
 367     gtk_signal_new ("draw_focus",
 368                     GTK_RUN_FIRST,
 369                     object_class->type,
 370                     GTK_SIGNAL_OFFSET (GtkWidgetClass, draw_focus),
 371                     gtk_signal_default_marshaller,
 372                     GTK_TYPE_NONE, 0);
 373   widget_signals[DRAW_DEFAULT] =
 374     gtk_signal_new ("draw_default",
 375                     GTK_RUN_FIRST,
 376                     object_class->type,
 377                     GTK_SIGNAL_OFFSET (GtkWidgetClass, draw_default),
 378                     gtk_signal_default_marshaller,
 379                     GTK_TYPE_NONE, 0);
 380   widget_signals[SIZE_REQUEST] =
 381     gtk_signal_new ("size_request",
 382                     GTK_RUN_FIRST,
 383                     object_class->type,
 384                     GTK_SIGNAL_OFFSET (GtkWidgetClass, size_request),
 385                     gtk_widget_marshal_signal_1,
 386                     GTK_TYPE_NONE, 1,
 387                     GTK_TYPE_POINTER);
 388   widget_signals[SIZE_ALLOCATE] =
 389     gtk_signal_new ("size_allocate",
 390                     GTK_RUN_FIRST,
 391                     object_class->type,
 392                     GTK_SIGNAL_OFFSET (GtkWidgetClass, size_allocate),
 393                     gtk_widget_marshal_signal_1,
 394                     GTK_TYPE_NONE, 1,
 395                     GTK_TYPE_POINTER);
 396   widget_signals[STATE_CHANGED] =
 397     gtk_signal_new ("state_changed",
 398                     GTK_RUN_FIRST,
 399                     object_class->type,
 400                     GTK_SIGNAL_OFFSET (GtkWidgetClass, state_changed),
 401                     gtk_widget_marshal_signal_5,
 402                     GTK_TYPE_NONE, 1,
 403                     GTK_TYPE_UINT);
 404   widget_signals[PARENT_SET] =
 405     gtk_signal_new ("parent_set",
 406                     GTK_RUN_FIRST,
 407                     object_class->type,
 408                     GTK_SIGNAL_OFFSET (GtkWidgetClass, parent_set),
 409                     gtk_widget_marshal_signal_6,
 410                     GTK_TYPE_NONE, 1,
 411                     GTK_TYPE_OBJECT);
 412   widget_signals[STYLE_SET] =
 413     gtk_signal_new ("style_set",
 414                     GTK_RUN_FIRST,
 415                     object_class->type,
 416                     GTK_SIGNAL_OFFSET (GtkWidgetClass, style_set),
 417                     gtk_widget_marshal_signal_7,
 418                     GTK_TYPE_NONE, 1,
 419                     GTK_TYPE_BOXED);
 420   widget_signals[INSTALL_ACCELERATOR] =
 421     gtk_signal_new ("install_accelerator",
 422                     GTK_RUN_LAST,
 423                     object_class->type,
 424                     GTK_SIGNAL_OFFSET (GtkWidgetClass, install_accelerator),
 425                     gtk_widget_marshal_signal_2,
 426                     GTK_TYPE_BOOL, 3,
 427                     GTK_TYPE_STRING,
 428                     GTK_TYPE_CHAR,
 429                     GTK_TYPE_INT);
 430   widget_signals[REMOVE_ACCELERATOR] =
 431     gtk_signal_new ("remove_accelerator",
 432                     GTK_RUN_FIRST,
 433                     object_class->type,
 434                     GTK_SIGNAL_OFFSET (GtkWidgetClass, remove_accelerator),
 435                     gtk_widget_marshal_signal_3,
 436                     GTK_TYPE_NONE, 1,
 437                     GTK_TYPE_STRING);
 438   widget_signals[EVENT] =
 439     gtk_signal_new ("event",
 440                     GTK_RUN_LAST,
 441                     object_class->type,
 442                     GTK_SIGNAL_OFFSET (GtkWidgetClass, event),
 443                     gtk_widget_marshal_signal_4,
 444                     GTK_TYPE_BOOL, 1,
 445                     GTK_TYPE_GDK_EVENT);
 446   widget_signals[BUTTON_PRESS_EVENT] =
 447     gtk_signal_new ("button_press_event",
 448                     GTK_RUN_LAST,
 449                     object_class->type,
 450                     GTK_SIGNAL_OFFSET (GtkWidgetClass, button_press_event),
 451                     gtk_widget_marshal_signal_4,
 452                     GTK_TYPE_BOOL, 1,
 453                     GTK_TYPE_GDK_EVENT);
 454   widget_signals[BUTTON_RELEASE_EVENT] =
 455     gtk_signal_new ("button_release_event",
 456                     GTK_RUN_LAST,
 457                     object_class->type,
 458                     GTK_SIGNAL_OFFSET (GtkWidgetClass, button_release_event),
 459                     gtk_widget_marshal_signal_4,
 460                     GTK_TYPE_BOOL, 1,
 461                     GTK_TYPE_GDK_EVENT);
 462   widget_signals[MOTION_NOTIFY_EVENT] =
 463     gtk_signal_new ("motion_notify_event",
 464                     GTK_RUN_LAST,
 465                     object_class->type,
 466                     GTK_SIGNAL_OFFSET (GtkWidgetClass, motion_notify_event),
 467                     gtk_widget_marshal_signal_4,
 468                     GTK_TYPE_BOOL, 1,
 469                     GTK_TYPE_GDK_EVENT);
 470   widget_signals[DELETE_EVENT] =
 471     gtk_signal_new ("delete_event",
 472                     GTK_RUN_LAST,
 473                     object_class->type,
 474                     GTK_SIGNAL_OFFSET (GtkWidgetClass, delete_event),
 475                     gtk_widget_marshal_signal_4,
 476                     GTK_TYPE_BOOL, 1,
 477                     GTK_TYPE_GDK_EVENT);
 478   widget_signals[DESTROY_EVENT] =
 479     gtk_signal_new ("destroy_event",
 480                     GTK_RUN_LAST,
 481                     object_class->type,
 482                     GTK_SIGNAL_OFFSET (GtkWidgetClass, destroy_event),
 483                     gtk_widget_marshal_signal_4,
 484                     GTK_TYPE_BOOL, 1,
 485                     GTK_TYPE_GDK_EVENT);
 486   widget_signals[EXPOSE_EVENT] =
 487     gtk_signal_new ("expose_event",
 488                     GTK_RUN_LAST,
 489                     object_class->type,
 490                     GTK_SIGNAL_OFFSET (GtkWidgetClass, expose_event),
 491                     gtk_widget_marshal_signal_4,
 492                     GTK_TYPE_BOOL, 1,
 493                     GTK_TYPE_GDK_EVENT);
 494   widget_signals[KEY_PRESS_EVENT] =
 495     gtk_signal_new ("key_press_event",
 496                     GTK_RUN_LAST,
 497                     object_class->type,
 498                     GTK_SIGNAL_OFFSET (GtkWidgetClass, key_press_event),
 499                     gtk_widget_marshal_signal_4,
 500                     GTK_TYPE_BOOL, 1,
 501                     GTK_TYPE_GDK_EVENT);
 502   widget_signals[KEY_RELEASE_EVENT] =
 503     gtk_signal_new ("key_release_event",
 504                     GTK_RUN_LAST,
 505                     object_class->type,
 506                     GTK_SIGNAL_OFFSET (GtkWidgetClass, key_release_event),
 507                     gtk_widget_marshal_signal_4,
 508                     GTK_TYPE_BOOL, 1,
 509                     GTK_TYPE_GDK_EVENT);
 510   widget_signals[ENTER_NOTIFY_EVENT] =
 511     gtk_signal_new ("enter_notify_event",
 512                     GTK_RUN_LAST,
 513                     object_class->type,
 514                     GTK_SIGNAL_OFFSET (GtkWidgetClass, enter_notify_event),
 515                     gtk_widget_marshal_signal_4,
 516                     GTK_TYPE_BOOL, 1,
 517                     GTK_TYPE_GDK_EVENT);
 518   widget_signals[LEAVE_NOTIFY_EVENT] =
 519     gtk_signal_new ("leave_notify_event",
 520                     GTK_RUN_LAST,
 521                     object_class->type,
 522                     GTK_SIGNAL_OFFSET (GtkWidgetClass, leave_notify_event),
 523                     gtk_widget_marshal_signal_4,
 524                     GTK_TYPE_BOOL, 1,
 525                     GTK_TYPE_GDK_EVENT);
 526   widget_signals[CONFIGURE_EVENT] =
 527     gtk_signal_new ("configure_event",
 528                     GTK_RUN_LAST,
 529                     object_class->type,
 530                     GTK_SIGNAL_OFFSET (GtkWidgetClass, configure_event),
 531                     gtk_widget_marshal_signal_4,
 532                     GTK_TYPE_BOOL, 1,
 533                     GTK_TYPE_GDK_EVENT);
 534   widget_signals[FOCUS_IN_EVENT] =
 535     gtk_signal_new ("focus_in_event",
 536                     GTK_RUN_LAST,
 537                     object_class->type,
 538                     GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_in_event),
 539                     gtk_widget_marshal_signal_4,
 540                     GTK_TYPE_BOOL, 1,
 541                     GTK_TYPE_GDK_EVENT);
 542   widget_signals[FOCUS_OUT_EVENT] =
 543     gtk_signal_new ("focus_out_event",
 544                     GTK_RUN_LAST,
 545                     object_class->type,
 546                     GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_out_event),
 547                     gtk_widget_marshal_signal_4,
 548                     GTK_TYPE_BOOL, 1,
 549                     GTK_TYPE_GDK_EVENT);
 550   widget_signals[MAP_EVENT] =
 551     gtk_signal_new ("map_event",
 552                     GTK_RUN_LAST,
 553                     object_class->type,
 554                     GTK_SIGNAL_OFFSET (GtkWidgetClass, map_event),
 555                     gtk_widget_marshal_signal_4,
 556                     GTK_TYPE_BOOL, 1,
 557                     GTK_TYPE_GDK_EVENT);
 558   widget_signals[UNMAP_EVENT] =
 559     gtk_signal_new ("unmap_event",
 560                     GTK_RUN_LAST,
 561                     object_class->type,
 562                     GTK_SIGNAL_OFFSET (GtkWidgetClass, unmap_event),
 563                     gtk_widget_marshal_signal_4,
 564                     GTK_TYPE_BOOL, 1,
 565                     GTK_TYPE_GDK_EVENT);
 566   widget_signals[PROPERTY_NOTIFY_EVENT] =
 567     gtk_signal_new ("property_notify_event",
 568                     GTK_RUN_LAST,
 569                     object_class->type,
 570                     GTK_SIGNAL_OFFSET (GtkWidgetClass, property_notify_event),
 571                     gtk_widget_marshal_signal_4,
 572                     GTK_TYPE_BOOL, 1,
 573                     GTK_TYPE_GDK_EVENT);
 574   widget_signals[SELECTION_CLEAR_EVENT] =
 575     gtk_signal_new ("selection_clear_event",
 576                     GTK_RUN_LAST,
 577                     object_class->type,
 578                     GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_clear_event),
 579                     gtk_widget_marshal_signal_4,
 580                     GTK_TYPE_BOOL, 1,
 581                     GTK_TYPE_GDK_EVENT);
 582   widget_signals[SELECTION_REQUEST_EVENT] =
 583     gtk_signal_new ("selection_request_event",
 584                     GTK_RUN_LAST,
 585                     object_class->type,
 586                     GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_request_event),
 587                     gtk_widget_marshal_signal_4,
 588                     GTK_TYPE_BOOL, 1,
 589                     GTK_TYPE_GDK_EVENT);
 590   widget_signals[SELECTION_NOTIFY_EVENT] =
 591     gtk_signal_new ("selection_notify_event",
 592                     GTK_RUN_LAST,
 593                     object_class->type,
 594                     GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_notify_event),
 595                     gtk_widget_marshal_signal_4,
 596                     GTK_TYPE_BOOL, 1,
 597                     GTK_TYPE_GDK_EVENT);
 598   widget_signals[SELECTION_RECEIVED] =
 599     gtk_signal_new ("selection_received",
 600                     GTK_RUN_LAST,
 601                     object_class->type,
 602                     GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_received),
 603                     gtk_widget_marshal_signal_1,
 604                     GTK_TYPE_BOOL, 1,
 605                     GTK_TYPE_GDK_EVENT);
 606   widget_signals[PROXIMITY_IN_EVENT] =
 607     gtk_signal_new ("proximity_in_event",
 608                     GTK_RUN_FIRST,
 609                     object_class->type,
 610                     GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_in_event),
 611                     gtk_widget_marshal_signal_4,
 612                     GTK_TYPE_BOOL, 1,
 613                     GTK_TYPE_GDK_EVENT);
 614   widget_signals[PROXIMITY_OUT_EVENT] =
 615     gtk_signal_new ("proximity_out_event",
 616                     GTK_RUN_LAST,
 617                     object_class->type,
 618                     GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_out_event),
 619                     gtk_widget_marshal_signal_4,
 620                     GTK_TYPE_BOOL, 1,
 621                     GTK_TYPE_GDK_EVENT);
 622   widget_signals[DRAG_BEGIN_EVENT] =
 623     gtk_signal_new ("drag_begin_event",
 624                     GTK_RUN_LAST,
 625                     object_class->type,
 626                     GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_begin_event),
 627                     gtk_widget_marshal_signal_4,
 628                     GTK_TYPE_BOOL, 1,
 629                     GTK_TYPE_GDK_EVENT);
 630   widget_signals[DRAG_REQUEST_EVENT] =
 631     gtk_signal_new ("drag_request_event",
 632                     GTK_RUN_LAST,
 633                     object_class->type,
 634                     GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_request_event),
 635                     gtk_widget_marshal_signal_4,
 636                     GTK_TYPE_BOOL, 1,
 637                     GTK_TYPE_GDK_EVENT);
 638   widget_signals[DRAG_END_EVENT] =
 639     gtk_signal_new ("drag_end_event",
 640                     GTK_RUN_LAST,
 641                     object_class->type,
 642                     GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_end_event),
 643                     gtk_widget_marshal_signal_4,
 644                     GTK_TYPE_BOOL, 1,
 645                     GTK_TYPE_GDK_EVENT);
 646   widget_signals[DROP_ENTER_EVENT] =
 647     gtk_signal_new ("drop_enter_event",
 648                     GTK_RUN_FIRST,
 649                     object_class->type,
 650                     GTK_SIGNAL_OFFSET (GtkWidgetClass, drop_enter_event),
 651                     gtk_widget_marshal_signal_4,
 652                     GTK_TYPE_BOOL, 1,
 653                     GTK_TYPE_GDK_EVENT);
 654   widget_signals[DROP_LEAVE_EVENT] =
 655     gtk_signal_new ("drop_leave_event",
 656                     GTK_RUN_FIRST,
 657                     object_class->type,
 658                     GTK_SIGNAL_OFFSET (GtkWidgetClass, drop_leave_event),
 659                     gtk_widget_marshal_signal_4,
 660                     GTK_TYPE_BOOL, 1,
 661                     GTK_TYPE_GDK_EVENT);
 662   widget_signals[DROP_DATA_AVAILABLE_EVENT] =
 663     gtk_signal_new ("drop_data_available_event",
 664                     GTK_RUN_FIRST,
 665                     object_class->type,
 666                     GTK_SIGNAL_OFFSET (GtkWidgetClass,
 667                                        drop_data_available_event),
 668                     gtk_widget_marshal_signal_4,
 669                     GTK_TYPE_BOOL, 1,
 670                     GTK_TYPE_GDK_EVENT);
 671   widget_signals[OTHER_EVENT] =
 672     gtk_signal_new ("other_event",
 673                     GTK_RUN_LAST,
 674                     object_class->type,
 675                     GTK_SIGNAL_OFFSET (GtkWidgetClass, other_event),
 676                     gtk_widget_marshal_signal_4,
 677                     GTK_TYPE_BOOL, 1,
 678                     GTK_TYPE_GDK_EVENT);
 679   widget_signals[CLIENT_EVENT] =
 680     gtk_signal_new ("client_event",
 681                     GTK_RUN_LAST,
 682                     object_class->type,
 683                     GTK_SIGNAL_OFFSET (GtkWidgetClass, client_event),
 684                     gtk_widget_marshal_signal_4,
 685                     GTK_TYPE_BOOL, 1,
 686                     GTK_TYPE_GDK_EVENT);
 687   widget_signals[NO_EXPOSE_EVENT] =
 688     gtk_signal_new ("no_expose_event",
 689                     GTK_RUN_LAST,
 690                     object_class->type,
 691                     GTK_SIGNAL_OFFSET (GtkWidgetClass, no_expose_event),
 692                     gtk_widget_marshal_signal_4,
 693                     GTK_TYPE_BOOL, 1,
 694                     GTK_TYPE_GDK_EVENT);
 695
 696   gtk_object_class_add_signals (object_class, widget_signals, LAST_SIGNAL);
 697
 698   object_class->shutdown = gtk_widget_shutdown;
 699   object_class->destroy = gtk_widget_real_destroy;
 700   object_class->finalize = gtk_widget_finalize;
 701
 702   klass->activate_signal = 0;
 703   klass->show = gtk_widget_real_show;
 704   klass->hide = gtk_widget_real_hide;
 705   klass->show_all = gtk_widget_real_show;
 706   klass->hide_all = gtk_widget_real_hide;
 707   klass->map = gtk_widget_real_map;
 708   klass->unmap = gtk_widget_real_unmap;
 709   klass->realize = gtk_widget_real_realize;
 710   klass->unrealize = gtk_widget_real_unrealize;
 711   klass->draw = gtk_widget_real_draw;
 712   klass->draw_focus = NULL;
 713   klass->size_request = NULL;
 714   klass->size_allocate = gtk_widget_real_size_allocate;
 715   klass->state_changed = NULL;
 716   klass->parent_set = NULL;
 717   klass->style_set = gtk_widget_style_set;
 718   klass->install_accelerator = NULL;
 719   klass->remove_accelerator = NULL;
 720   klass->event = NULL;
 721   klass->button_press_event = NULL;
 722   klass->button_release_event = NULL;
 723   klass->motion_notify_event = NULL;
 724   klass->delete_event = NULL;
 725   klass->destroy_event = NULL;
 726   klass->expose_event = NULL;
 727   klass->key_press_event = NULL;
 728   klass->key_release_event = NULL;
 729   klass->enter_notify_event = NULL;
 730   klass->leave_notify_event = NULL;
 731   klass->configure_event = NULL;
 732   klass->focus_in_event = NULL;
 733   klass->focus_out_event = NULL;
 734   klass->map_event = NULL;
 735   klass->unmap_event = NULL;
 736   klass->property_notify_event = gtk_selection_property_notify;
 737   klass->selection_clear_event = gtk_selection_clear;
 738   klass->selection_request_event = gtk_selection_request;
 739   klass->selection_notify_event = gtk_selection_notify;
 740   klass->selection_received = NULL;
 741   klass->proximity_in_event = NULL;
 742   klass->proximity_out_event = NULL;
 743   klass->drag_begin_event = NULL;
 744   klass->drag_request_event = NULL;
 745   klass->drop_enter_event = NULL;
 746   klass->drop_leave_event = NULL;
 747   klass->drop_data_available_event = NULL;
 748   klass->other_event = NULL;
 749   klass->no_expose_event = NULL;
 750 }
 751
 752 /*****************************************
 753  * gtk_widget_set_arg:
 754  *
 755  *   arguments:
 756  *
 757  *   results:
 758  *****************************************/
 759
 760 static void
 761 gtk_widget_set_arg (GtkWidget   *widget,
 762                     GtkArg      *arg,
 763                     guint        arg_id)
 764 {
 765   guint32 saved_flags;
 766
 767   switch (arg_id)
 768     {
 769     case ARG_NAME:
 770       gtk_widget_set_name (widget, GTK_VALUE_STRING (*arg));
 771       break;
 772     case ARG_PARENT:
 773       gtk_container_add (GTK_CONTAINER (GTK_VALUE_OBJECT (*arg)), widget);
 774       break;
 775     case ARG_X:
 776       gtk_widget_set_uposition (widget, GTK_VALUE_INT (*arg), -2);
 777       break;
 778     case ARG_Y:
 779       gtk_widget_set_uposition (widget, -2, GTK_VALUE_INT (*arg));
 780       break;
 781     case ARG_WIDTH:
 782       gtk_widget_set_usize (widget, GTK_VALUE_INT (*arg), -1);
 783       break;
 784     case ARG_HEIGHT:
 785       gtk_widget_set_usize (widget, -1, GTK_VALUE_INT (*arg));
 786       break;
 787     case ARG_VISIBLE:
 788       if (GTK_VALUE_BOOL(*arg))
 789         gtk_widget_show (widget);
 790       else
 791         gtk_widget_hide (widget);
 792       break;
 793     case ARG_SENSITIVE:
 794       gtk_widget_set_sensitive (widget, GTK_VALUE_BOOL (*arg));
 795       break;
 796     case ARG_CAN_FOCUS:
 797       saved_flags = GTK_WIDGET_FLAGS (widget);
 798       if (GTK_VALUE_BOOL (*arg))
 799         GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
 800       else
 801         GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS);
 802       if (saved_flags != GTK_WIDGET_FLAGS (widget))
 803         gtk_widget_queue_resize (widget);
 804       break;
 805     case ARG_HAS_FOCUS:
 806       if (GTK_VALUE_BOOL (*arg))
 807         gtk_widget_grab_focus (widget);
 808       break;
 809     case ARG_CAN_DEFAULT:
 810       saved_flags = GTK_WIDGET_FLAGS (widget);
 811       if (GTK_VALUE_BOOL (*arg))
 812         GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_DEFAULT);
 813       else
 814         GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_DEFAULT);
 815       if (saved_flags != GTK_WIDGET_FLAGS (widget))
 816         gtk_widget_queue_resize (widget);
 817       break;
 818     case ARG_HAS_DEFAULT:
 819       if (GTK_VALUE_BOOL (*arg))
 820         gtk_widget_grab_default (widget);
 821       break;
 822     case ARG_STYLE:
 823       gtk_widget_set_style (widget, (GtkStyle*) GTK_VALUE_BOXED (*arg));
 824       break;
 825     case ARG_EVENTS:
 826       gtk_widget_set_events (widget, GTK_VALUE_FLAGS (*arg));
 827       break;
 828     case ARG_EXTENSION_EVENTS:
 829       gtk_widget_set_extension_events (widget, GTK_VALUE_FLAGS (*arg));
 830       break;
 831     default:
 832       arg->type = GTK_TYPE_INVALID;
 833       break;
 834     }
 835 }
 836
 837 /*****************************************
 838  * gtk_widget_get_arg:
 839  *
 840  *   arguments:
 841  *
 842  *   results:
 843  *****************************************/
 844
 845 static void
 846 gtk_widget_get_arg (GtkWidget   *widget,
 847                     GtkArg      *arg,
 848                     guint        arg_id)
 849 {
 850   GtkWidgetAuxInfo *aux_info;
 851   gint *eventp;
 852   GdkExtensionMode *modep;
 853
 854   switch (arg_id)
 855     {
 856     case ARG_NAME:
 857       if (widget->name)
 858         GTK_VALUE_STRING (*arg) = g_strdup (widget->name);
 859       else
 860         GTK_VALUE_STRING (*arg) = g_strdup ("");
 861       break;
 862     case ARG_PARENT:
 863       GTK_VALUE_OBJECT (*arg) = (GtkObject*) widget->parent;
 864       break;
 865     case ARG_X:
 866       aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
 867       if (!aux_info)
 868         GTK_VALUE_INT (*arg) = -2;
 869       else
 870         GTK_VALUE_INT (*arg) = aux_info->x;
 871       break;
 872     case ARG_Y:
 873       aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
 874       if (!aux_info)
 875         GTK_VALUE_INT (*arg) = -2;
 876       else
 877         GTK_VALUE_INT (*arg) = aux_info->y;
 878       break;
 879     case ARG_WIDTH:
 880       aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
 881       if (!aux_info)
 882         GTK_VALUE_INT (*arg) = -2;
 883       else
 884         GTK_VALUE_INT (*arg) = aux_info->width;
 885       break;
 886     case ARG_HEIGHT:
 887       aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
 888       if (!aux_info)
 889         GTK_VALUE_INT (*arg) = -2;
 890       else
 891         GTK_VALUE_INT (*arg) = aux_info->height;
 892       break;
 893     case ARG_VISIBLE:
 894       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_VISIBLE (widget) != FALSE);
 895       break;
 896     case ARG_SENSITIVE:
 897       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_SENSITIVE (widget) != FALSE);
 898       break;
 899     case ARG_CAN_FOCUS:
 900       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_CAN_FOCUS (widget) != FALSE);
 901       break;
 902     case ARG_HAS_FOCUS:
 903       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_HAS_FOCUS (widget) != FALSE);
 904       break;
 905     case ARG_CAN_DEFAULT:
 906       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_CAN_DEFAULT (widget) != FALSE);
 907       break;
 908     case ARG_HAS_DEFAULT:
 909       GTK_VALUE_BOOL (*arg) = (GTK_WIDGET_HAS_DEFAULT (widget) != FALSE);
 910       break;
 911     case ARG_STYLE:
 912       GTK_VALUE_BOXED (*arg) = (gpointer) gtk_widget_get_style (widget);
 913       break;
 914     case ARG_EVENTS:
 915       eventp = gtk_object_get_data_by_id (GTK_OBJECT (widget), event_key_id);
 916       if (!eventp)
 917         GTK_VALUE_FLAGS (*arg) = 0;
 918       else
 919         GTK_VALUE_FLAGS (*arg) = *eventp;
 920       break;
 921     case ARG_EXTENSION_EVENTS:
 922       modep = gtk_object_get_data_by_id (GTK_OBJECT (widget), extension_event_key_id);
 923       if (!modep)
 924         GTK_VALUE_FLAGS (*arg) = 0;
 925       else
 926         GTK_VALUE_FLAGS (*arg) = *modep;
 927       break;
 928     default:
 929       arg->type = GTK_TYPE_INVALID;
 930       break;
 931     }
 932 }
 933
 934 /*****************************************
 935  * gtk_widget_init:
 936  *
 937  *   arguments:
 938  *
 939  *   results:
 940  *****************************************/
 941
 942 static void
 943 gtk_widget_init (GtkWidget *widget)
 944 {
 945   GdkColormap *colormap;
 946   GdkVisual *visual;
 947
 948   GTK_PRIVATE_FLAGS (widget) = 0;
 949   widget->state = GTK_STATE_NORMAL;
 950   widget->saved_state = GTK_STATE_NORMAL;
 951   widget->name = NULL;
 952   widget->requisition.width = 0;
 953   widget->requisition.height = 0;
 954   widget->allocation.x = -1;
 955   widget->allocation.y = -1;
 956   widget->allocation.width = 1;
 957   widget->allocation.height = 1;
 958   widget->window = NULL;
 959   widget->parent = NULL;
 960
 961   GTK_WIDGET_SET_FLAGS (widget, GTK_SENSITIVE | GTK_PARENT_SENSITIVE);
 962
 963   widget->style = gtk_widget_peek_style ();
 964   gtk_style_ref (widget->style);
 965
 966   colormap = gtk_widget_peek_colormap ();
 967   visual = gtk_widget_peek_visual ();
 968
 969   /* XXX - should we ref the colormap and visual, too? */
 970
 971   if (colormap != gtk_widget_get_default_colormap ())
 972     {
 973       /* gdk_colormap_ref (colormap); */
 974       gtk_object_set_data (GTK_OBJECT (widget), colormap_key, colormap);
 975     }
 976
 977   if (visual != gtk_widget_get_default_visual ())
 978     {
 979       /* gdk_visual_ref (visual); */
 980       gtk_object_set_data (GTK_OBJECT (widget), visual_key, visual);
 981     }
 982 }
 983
 984 /*****************************************
 985  * gtk_widget_new:
 986  *
 987  *   arguments:
 988  *
 989  *   results:
 990  *****************************************/
 991
 992 GtkWidget*
 993 gtk_widget_new (guint type,
 994                 ...)
 995 {
 996   GtkObject *obj;
 997   GtkArg *args;
 998   guint nargs;
 999   va_list args1;
1000   va_list args2;
1001
1002   g_return_val_if_fail (GTK_TYPE_IS_A (type, gtk_widget_get_type ()), NULL);
1003
1004   obj = gtk_type_new (type);
1005
1006   va_start (args1, type);
1007   va_start (args2, type);
1008
1009   args = gtk_object_collect_args (&nargs, args1, args2);
1010   gtk_object_setv (obj, nargs, args);
1011   g_free (args);
1012
1013   va_end (args1);
1014   va_end (args2);
1015
1016   return GTK_WIDGET (obj);
1017 }
1018
1019 /*****************************************
1020  * gtk_widget_newv:
1021  *
1022  *   arguments:
1023  *
1024  *   results:
1025  *****************************************/
1026
1027 GtkWidget*
1028 gtk_widget_newv (guint   type,
1029                  guint   nargs,
1030                  GtkArg *args)
1031 {
1032   g_return_val_if_fail (GTK_TYPE_IS_A (type, gtk_widget_get_type ()), NULL);
1033
1034   return GTK_WIDGET (gtk_object_newv (type, nargs, args));
1035 }
1036
1037 /*****************************************
1038  * gtk_widget_get:
1039  *
1040  *   arguments:
1041  *
1042  *   results:
1043  *****************************************/
1044
1045 void
1046 gtk_widget_get (GtkWidget       *widget,
1047                 GtkArg          *arg)
1048 {
1049   g_return_if_fail (widget != NULL);
1050   g_return_if_fail (arg != NULL);
1051
1052   gtk_object_getv (GTK_OBJECT (widget), 1, arg);
1053 }
1054
1055 /*****************************************
1056  * gtk_widget_getv:
1057  *
1058  *   arguments:
1059  *
1060  *   results:
1061  *****************************************/
1062
1063 void
1064 gtk_widget_getv (GtkWidget      *widget,
1065                  guint           nargs,
1066                  GtkArg         *args)
1067 {
1068   gtk_object_getv (GTK_OBJECT (widget), nargs, args);
1069 }
1070
1071 /*****************************************
1072  * gtk_widget_set:
1073  *
1074  *   arguments:
1075  *
1076  *   results:
1077  *****************************************/
1078
1079 void
1080 gtk_widget_set (GtkWidget *widget,
1081                 ...)
1082 {
1083   GtkArg *args;
1084   guint nargs;
1085   va_list args1;
1086   va_list args2;
1087
1088   g_return_if_fail (widget != NULL);
1089
1090   va_start (args1, widget);
1091   va_start (args2, widget);
1092
1093   args = gtk_object_collect_args (&nargs, args1, args2);
1094   gtk_object_setv (GTK_OBJECT (widget), nargs, args);
1095   g_free (args);
1096
1097   va_end (args1);
1098   va_end (args2);
1099 }
1100
1101 /*****************************************
1102  * gtk_widget_setv:
1103  *
1104  *   arguments:
1105  *
1106  *   results:
1107  *****************************************/
1108
1109 void
1110 gtk_widget_setv (GtkWidget *widget,
1111                  guint      nargs,
1112                  GtkArg    *args)
1113 {
1114   gtk_object_setv (GTK_OBJECT (widget), nargs, args);
1115 }
1116
1117 /*****************************************
1118  * gtk_widget_unparent:
1119  *   do any cleanup necessary necessary
1120  *   for setting parent = NULL.
1121  *
1122  *   arguments:
1123  *
1124  *   results:
1125  *****************************************/
1126
1127 void
1128 gtk_widget_unparent (GtkWidget *widget)
1129 {
1130   GtkWidget *toplevel;
1131   GtkWidget *old_parent;
1132   GSList *tmp_list, *prev_list;
1133
1134   g_return_if_fail (widget != NULL);
1135   if (widget->parent == NULL)
1136     return;
1137
1138   /* keep this function in sync with gtk_menu_detach()
1139    */
1140
1141   /* unset focused and default children properly
1142    */
1143   toplevel = gtk_widget_get_toplevel (widget);
1144   if (GTK_CONTAINER (widget->parent)->focus_child == widget)
1145     {
1146       gtk_container_set_focus_child (GTK_CONTAINER (widget->parent), NULL);
1147
1148       if (GTK_IS_WINDOW (toplevel))
1149         {
1150           GtkWidget *child;
1151
1152           child = GTK_WINDOW (toplevel)->focus_widget;
1153
1154           while (child && child != widget)
1155             child = child->parent;
1156
1157           if (child == widget)
1158             gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1159         }
1160     }
1161   if (GTK_IS_WINDOW (toplevel))
1162     {
1163       GtkWidget *child;
1164
1165       child = GTK_WINDOW (toplevel)->default_widget;
1166
1167       while (child && child != widget)
1168         child = child->parent;
1169
1170       if (child == widget)
1171         gtk_window_set_default (GTK_WINDOW (toplevel), NULL);
1172     }
1173
1174   /* Remove the widget and all its children from toplevel->resize_widgets
1175    */
1176
1177   /* Three ways to make this prettier:
1178    *   Write a g_slist_conditional_remove (GSList, gboolean (*)(gpointer))
1179    *   Change resize_widgets to a GList
1180    *   Just bite the bullet and use g_slist_remove
1181    */
1182   tmp_list = GTK_CONTAINER (toplevel)->resize_widgets;
1183   prev_list = NULL;
1184   while (tmp_list)
1185     {
1186       GSList *tmp = tmp_list;
1187       GtkWidget *child = (GtkWidget *)tmp->data;
1188       GtkWidget *parent = child;
1189
1190       tmp_list = tmp_list->next;
1191
1192       while (parent && (parent != widget))
1193         parent = parent->parent;
1194
1195       if (parent == widget)
1196         {
1197           GTK_PRIVATE_UNSET_FLAG (child, GTK_RESIZE_NEEDED);
1198
1199           if (prev_list)
1200             prev_list->next = tmp_list;
1201           else
1202             GTK_CONTAINER (toplevel)->resize_widgets = tmp_list;
1203
1204           tmp->next = NULL;
1205
1206           g_slist_free_1 (tmp);
1207         }
1208       else
1209         prev_list = tmp;
1210     }
1211
1212   if (widget->window &&
1213       GTK_WIDGET_NO_WINDOW (widget) &&
1214       GTK_WIDGET_DRAWABLE (widget))
1215     gdk_window_clear_area (widget->window,
1216                            widget->allocation.x,
1217                            widget->allocation.y,
1218                            widget->allocation.width,
1219                            widget->allocation.height);
1220
1221   /* Reset the width and height here, to force reallocation if we
1222    * get added back to a new parent. This won't work if our new
1223    * allocation is smaller than 1x1 and we actually want a size of 1x1...
1224    * (would 0x0 be OK here?)
1225    */
1226   widget->allocation.width = 1;
1227   widget->allocation.height = 1;
1228
1229   if (GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_IN_REPARENT (widget))
1230     gtk_widget_unrealize (widget);
1231
1232   old_parent = widget->parent;
1233   widget->parent = NULL;
1234   gtk_widget_set_parent_window (widget, NULL);
1235   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[PARENT_SET], old_parent);
1236
1237   gtk_widget_unref (widget);
1238 }
1239
1240 /*****************************************
1241  * gtk_widget_destroy:
1242  *
1243  *   arguments:
1244  *
1245  *   results:
1246  *****************************************/
1247
1248 void
1249 gtk_widget_destroy (GtkWidget *widget)
1250 {
1251   g_return_if_fail (widget != NULL);
1252   g_return_if_fail (GTK_IS_WIDGET (widget));
1253
1254   gtk_object_destroy ((GtkObject*) widget);
1255 }
1256
1257 /*****************************************
1258  * gtk_widget_destroyed:
1259  *   Utility function: sets widget_pointer
1260  *   to NULL when widget is destroyed.
1261  *
1262  *   arguments:
1263  *
1264  *   results:
1265  *****************************************/
1266
1267 void
1268 gtk_widget_destroyed (GtkWidget      *widget,
1269                       GtkWidget      **widget_pointer)
1270 {
1271   /* Don't make any assumptions about the
1272    *  value of widget!
1273    *  Even check widget_pointer.
1274    */
1275   if (widget_pointer)
1276     *widget_pointer = NULL;
1277 }
1278
1279 /*****************************************
1280  * gtk_widget_show:
1281  *
1282  *   arguments:
1283  *
1284  *   results:
1285  *****************************************/
1286
1287 void
1288 gtk_widget_show (GtkWidget *widget)
1289 {
1290   g_return_if_fail (widget != NULL);
1291
1292   if (!GTK_WIDGET_VISIBLE (widget))
1293     gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SHOW]);
1294 }
1295
1296
1297 /*************************************************************
1298  * gtk_widget_show_now:
1299  *   Show a widget, and if it is an unmapped toplevel widget
1300  *   wait for the map_event before returning
1301  *
1302  *   Warning: This routine will call the main loop recursively.
1303  *
1304  *   arguments:
1305  *
1306  *   results:
1307  *************************************************************/
1308
1309 static void
1310 gtk_widget_show_map_callback (GtkWidget *widget, GdkEvent *event, gint *flag)
1311 {
1312   *flag = TRUE;
1313   gtk_signal_disconnect_by_data (GTK_OBJECT (widget), flag);
1314 }
1315
1316 void
1317 gtk_widget_show_now (GtkWidget *widget)
1318 {
1319   gint flag = FALSE;
1320
1321   /* make sure we will get event */
1322   if (!GTK_WIDGET_MAPPED (widget) &&
1323       GTK_WIDGET_TOPLEVEL (widget))
1324     {
1325       gtk_widget_show (widget);
1326
1327       gtk_signal_connect (GTK_OBJECT (widget), "map_event",
1328                           GTK_SIGNAL_FUNC (gtk_widget_show_map_callback),
1329                           &flag);
1330
1331       while (!flag)
1332         gtk_main_iteration();
1333     }
1334   else
1335     gtk_widget_show (widget);
1336 }
1337
1338 /*****************************************
1339  * gtk_widget_hide:
1340  *
1341  *   arguments:
1342  *
1343  *   results:
1344  *****************************************/
1345
1346 void
1347 gtk_widget_hide (GtkWidget *widget)
1348 {
1349   g_return_if_fail (widget != NULL);
1350   g_return_if_fail (GTK_IS_WIDGET (widget));
1351
1352   if (GTK_WIDGET_VISIBLE (widget))
1353     gtk_signal_emit (GTK_OBJECT (widget), widget_signals[HIDE]);
1354 }
1355
1356 gint
1357 gtk_widget_hide_on_delete (GtkWidget      *widget)
1358 {
1359   g_return_val_if_fail (widget != NULL, FALSE);
1360   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
1361
1362   gtk_widget_hide (widget);
1363
1364   return TRUE;
1365 }
1366
1367 /*****************************************
1368  * gtk_widget_show_all:
1369  *
1370  *   Shows the widget and all children.
1371  *
1372  *   Container classes overwrite
1373  *   show_all and hide_all to call
1374  *   show_all (hide_all) on both themselves
1375  *   and on their child widgets.
1376  *
1377  *   arguments:
1378  *
1379  *   results:
1380  *****************************************/
1381
1382 void
1383 gtk_widget_show_all (GtkWidget *widget)
1384 {
1385   GtkWidgetClass *widget_class;
1386
1387   g_return_if_fail (widget != NULL);
1388
1389   /* show_all shouldn't be invoked through a signal,
1390      because in this case it would be quite slow - there would
1391      be a show and show_all signal emitted for every child widget.
1392    */
1393   widget_class = GTK_WIDGET_CLASS(GTK_OBJECT(widget)->klass);
1394   widget_class->show_all (widget);
1395 }
1396
1397 /*****************************************
1398  * gtk_widget_hide_all:
1399  *
1400  *   Hides the widget and all children.
1401  *   See gtk_widget_show_all.
1402  *
1403  *   arguments:
1404  *
1405  *   results:
1406  *****************************************/
1407
1408 void
1409 gtk_widget_hide_all (GtkWidget *widget)
1410 {
1411   g_return_if_fail (widget != NULL);
1412   g_assert (widget->parent);
1413
1414   if (GTK_WIDGET_RESIZE_NEEDED (widget))
1415     {
1416       GtkWidget *toplevel;
1417
1418       toplevel = gtk_widget_get_toplevel (widget);
1419       GTK_CONTAINER (toplevel)->resize_widgets =
1420         g_slist_remove (GTK_CONTAINER (toplevel)->resize_widgets, widget);
1421       GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_NEEDED);
1422     }
1423
1424   GTK_WIDGET_CLASS (GTK_OBJECT (widget)->klass)->hide_all (widget);
1425 }
1426
1427 /*****************************************
1428  * gtk_widget_map:
1429  *
1430  *   arguments:
1431  *
1432  *   results:
1433  *****************************************/
1434
1435 void
1436 gtk_widget_map (GtkWidget *widget)
1437 {
1438   g_return_if_fail (widget != NULL);
1439
1440   if (!GTK_WIDGET_MAPPED (widget))
1441     {
1442       if (!GTK_WIDGET_REALIZED (widget))
1443         gtk_widget_realize (widget);
1444
1445       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[MAP]);
1446     }
1447 }
1448
1449 /*****************************************
1450  * gtk_widget_unmap:
1451  *
1452  *   arguments:
1453  *
1454  *   results:
1455  *****************************************/
1456
1457 void
1458 gtk_widget_unmap (GtkWidget *widget)
1459 {
1460   g_return_if_fail (widget != NULL);
1461
1462   if (GTK_WIDGET_MAPPED (widget))
1463     gtk_signal_emit (GTK_OBJECT (widget), widget_signals[UNMAP]);
1464 }
1465
1466 /*****************************************
1467  * gtk_widget_realize:
1468  *
1469  *   arguments:
1470  *
1471  *   results:
1472  *****************************************/
1473
1474 void
1475 gtk_widget_realize (GtkWidget *widget)
1476 {
1477   gint events;
1478   GdkExtensionMode mode;
1479   GtkWidgetShapeInfo *shape_info;
1480
1481   g_return_if_fail (widget != NULL);
1482
1483   if (!GTK_WIDGET_REALIZED (widget))
1484     {
1485       /*
1486         if (GTK_IS_CONTAINER (widget) && !GTK_WIDGET_NO_WINDOW (widget))
1487           g_print ("%s\n", gtk_type_name (GTK_WIDGET_TYPE (widget)));
1488       */
1489
1490       if (widget->parent && !GTK_WIDGET_REALIZED (widget->parent))
1491         gtk_widget_realize (widget->parent);
1492
1493       gtk_widget_ensure_style (widget);
1494
1495       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[REALIZE]);
1496
1497       if (GTK_WIDGET_HAS_SHAPE_MASK (widget))
1498         {
1499           shape_info = gtk_object_get_data (GTK_OBJECT (widget),
1500                                             shape_info_key);
1501           gdk_window_shape_combine_mask (widget->window,
1502                                          shape_info->shape_mask,
1503                                          shape_info->offset_x,
1504                                          shape_info->offset_y);
1505         }
1506
1507       if (!GTK_WIDGET_NO_WINDOW (widget))
1508         {
1509           mode = gtk_widget_get_extension_events (widget);
1510           if (mode != GDK_EXTENSION_EVENTS_NONE)
1511             {
1512               events = gtk_widget_get_events (widget);
1513               gdk_input_set_extension_events (widget->window, events, mode);
1514             }
1515         }
1516
1517     }
1518 }
1519
1520 /*****************************************
1521  * gtk_widget_unrealize:
1522  *
1523  *   arguments:
1524  *
1525  *   results:
1526  *****************************************/
1527
1528 void
1529 gtk_widget_unrealize (GtkWidget *widget)
1530 {
1531   g_return_if_fail (widget != NULL);
1532
1533   if (GTK_WIDGET_REDRAW_PENDING (widget))
1534     {
1535       gtk_widget_redraw_queue = g_slist_remove (gtk_widget_redraw_queue, widget);
1536       GTK_PRIVATE_UNSET_FLAG (widget, GTK_REDRAW_PENDING);
1537     }
1538
1539   if (GTK_WIDGET_HAS_SHAPE_MASK (widget))
1540     gtk_widget_shape_combine_mask (widget, NULL, -1, -1);
1541
1542   if (GTK_WIDGET_REALIZED (widget))
1543     {
1544       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[UNREALIZE]);
1545       GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
1546     }
1547 }
1548
1549 /*****************************************
1550  * gtk_widget_queue_draw:
1551  *
1552  *   arguments:
1553  *
1554  *   results:
1555  *****************************************/
1556
1557 static gint
1558 gtk_widget_idle_draw (void *data)
1559 {
1560   GSList *node;
1561
1562   node = gtk_widget_redraw_queue;
1563   gtk_widget_redraw_queue = NULL;
1564   while (node)
1565     {
1566       gtk_widget_real_queue_draw ((GtkWidget*) node->data);
1567       node = node->next;
1568     }
1569
1570   return gtk_widget_redraw_queue != NULL;
1571 }
1572
1573 void
1574 gtk_widget_queue_draw (GtkWidget *widget)
1575 {
1576   GtkWidget *parent;
1577
1578   g_return_if_fail (widget != NULL);
1579
1580   if (GTK_WIDGET_DRAWABLE (widget))
1581     {
1582       /* We queue the redraw if:
1583        *  a) the widget is not already queued for redraw and
1584        *  b) non of the widgets ancestors are queued for redraw.
1585        */
1586       parent = widget;
1587       while (parent)
1588         {
1589           if (GTK_WIDGET_REDRAW_PENDING (parent))
1590             return;
1591           parent = parent->parent;
1592         }
1593
1594       GTK_PRIVATE_SET_FLAG (widget, GTK_REDRAW_PENDING);
1595       if (gtk_widget_redraw_queue == NULL)
1596         gtk_idle_add_priority (GTK_PRIORITY_INTERNAL,
1597                                (GtkFunction) gtk_widget_idle_draw, NULL);
1598
1599       gtk_widget_redraw_queue = g_slist_prepend (gtk_widget_redraw_queue, widget);
1600     }
1601 }
1602
1603 /*****************************************
1604  * gtk_widget_queue_resize:
1605  *
1606  *   arguments:
1607  *
1608  *   results:
1609  *****************************************/
1610
1611 static gint
1612 gtk_widget_idle_sizer (void *data)
1613 {
1614   GSList *slist, *free_slist;
1615
1616   free_slist = gtk_widget_resize_queue;
1617   gtk_widget_resize_queue = NULL;
1618
1619   for (slist = free_slist; slist; slist = slist->next)
1620     {
1621       GtkWidget *widget;
1622
1623       widget = slist->data;
1624
1625       GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_PENDING);
1626       if (gtk_container_need_resize (GTK_CONTAINER (widget)))
1627         gtk_widget_queue_resize (widget);
1628     }
1629   g_slist_free (free_slist);
1630
1631   return gtk_widget_resize_queue != NULL;
1632 }
1633
1634 void
1635 gtk_widget_queue_resize (GtkWidget *widget)
1636 {
1637   GtkWidget *toplevel;
1638
1639   g_return_if_fail (widget != NULL);
1640
1641   toplevel = gtk_widget_get_toplevel (widget);
1642   if (GTK_WIDGET_TOPLEVEL (toplevel))
1643     {
1644       if (GTK_WIDGET_VISIBLE (toplevel))
1645         {
1646           if (!GTK_CONTAINER_RESIZE_PENDING (toplevel))
1647             {
1648               GTK_PRIVATE_SET_FLAG (toplevel, GTK_RESIZE_PENDING);
1649               if (gtk_widget_resize_queue == NULL)
1650                 gtk_idle_add_priority (GTK_PRIORITY_INTERNAL,
1651                                        (GtkFunction) gtk_widget_idle_sizer, NULL);
1652               gtk_widget_resize_queue = g_slist_prepend (gtk_widget_resize_queue, toplevel);
1653             }
1654
1655           if (!GTK_WIDGET_RESIZE_NEEDED (widget))
1656             {
1657               GTK_PRIVATE_SET_FLAG (widget, GTK_RESIZE_NEEDED);
1658               GTK_CONTAINER (toplevel)->resize_widgets =
1659                 g_slist_prepend (GTK_CONTAINER (toplevel)->resize_widgets, widget);
1660             }
1661           else
1662             g_assert (g_slist_find (GTK_CONTAINER (toplevel)->resize_widgets, widget)); /* paranoid */
1663         }
1664       else
1665         gtk_container_need_resize (GTK_CONTAINER (toplevel));
1666     }
1667 }
1668
1669 /*****************************************
1670  * gtk_widget_draw:
1671  *
1672  *   arguments:
1673  *
1674  *   results:
1675  *****************************************/
1676
1677 void
1678 gtk_widget_draw (GtkWidget    *widget,
1679                  GdkRectangle *area)
1680 {
1681   GdkRectangle temp_area;
1682
1683   g_return_if_fail (widget != NULL);
1684
1685   if (GTK_WIDGET_REDRAW_PENDING (widget))
1686     {
1687       gtk_widget_redraw_queue = g_slist_remove (gtk_widget_redraw_queue, widget);
1688       GTK_PRIVATE_UNSET_FLAG (widget, GTK_REDRAW_PENDING);
1689
1690       area = NULL;
1691     }
1692
1693   if (GTK_WIDGET_DRAWABLE (widget))
1694     {
1695       if (!area)
1696         {
1697           if (GTK_WIDGET_NO_WINDOW (widget))
1698             {
1699               temp_area.x = widget->allocation.x;
1700               temp_area.y = widget->allocation.y;
1701             }
1702           else
1703             {
1704               temp_area.x = 0;
1705               temp_area.y = 0;
1706             }
1707
1708           temp_area.width = widget->allocation.width;
1709           temp_area.height = widget->allocation.height;
1710           area = &temp_area;
1711         }
1712
1713       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW], area);
1714     }
1715 }
1716
1717 /*****************************************
1718  * gtk_widget_draw_focus:
1719  *
1720  *   arguments:
1721  *
1722  *   results:
1723  *****************************************/
1724
1725 void
1726 gtk_widget_draw_focus (GtkWidget *widget)
1727 {
1728   g_return_if_fail (widget != NULL);
1729
1730   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW_FOCUS]);
1731 }
1732
1733 /*****************************************
1734  * gtk_widget_draw_default:
1735  *
1736  *   arguments:
1737  *
1738  *   results:
1739  *****************************************/
1740
1741 void
1742 gtk_widget_draw_default (GtkWidget *widget)
1743 {
1744   g_return_if_fail (widget != NULL);
1745
1746   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW_DEFAULT]);
1747 }
1748
1749 /*****************************************
1750  * gtk_widget_draw_children:
1751  *
1752  *   arguments:
1753  *
1754  *   results:
1755  *****************************************/
1756
1757 void
1758 gtk_widget_draw_children (GtkWidget *widget)
1759 {
1760   g_return_if_fail (widget != NULL);
1761
1762   if (GTK_IS_CONTAINER (widget))
1763     gtk_container_foreach (GTK_CONTAINER (widget),
1764                            gtk_widget_draw_children_recurse,
1765                            NULL);
1766 }
1767
1768 /*****************************************
1769  * gtk_widget_size_request:
1770  *
1771  *   arguments:
1772  *
1773  *   results:
1774  *****************************************/
1775
1776 void
1777 gtk_widget_size_request (GtkWidget      *widget,
1778                          GtkRequisition *requisition)
1779 {
1780   GtkWidgetAuxInfo *aux_info;
1781
1782   g_return_if_fail (widget != NULL);
1783
1784   gtk_widget_ref (widget);
1785   gtk_widget_ensure_style (widget);
1786   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SIZE_REQUEST],
1787                    requisition);
1788   aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
1789   if (aux_info)
1790     {
1791       if (aux_info->width > 0)
1792         requisition->width = aux_info->width;
1793       if (aux_info->height > 0)
1794         requisition->height = aux_info->height;
1795     }
1796   gtk_widget_unref (widget);
1797 }
1798
1799 /*****************************************
1800  * gtk_widget_size_allocate:
1801  *
1802  *   arguments:
1803  *
1804  *   results:
1805  *****************************************/
1806
1807 void
1808 gtk_widget_size_allocate (GtkWidget     *widget,
1809                           GtkAllocation *allocation)
1810 {
1811   GtkWidgetAuxInfo *aux_info;
1812   GtkAllocation real_allocation;
1813
1814   g_return_if_fail (widget != NULL);
1815
1816   real_allocation = *allocation;
1817   aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
1818
1819   if (aux_info)
1820     {
1821       if (aux_info->x != -1)
1822         real_allocation.x = aux_info->x;
1823       if (aux_info->y != -1)
1824         real_allocation.y = aux_info->y;
1825     }
1826
1827   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SIZE_ALLOCATE], &real_allocation);
1828 }
1829
1830 /*****************************************
1831  * gtk_widget_install_accelerator:
1832  *
1833  *   arguments:
1834  *
1835  *   results:
1836  *****************************************/
1837
1838 void
1839 gtk_widget_install_accelerator (GtkWidget           *widget,
1840                                 GtkAcceleratorTable *table,
1841                                 const gchar         *signal_name,
1842                                 gchar                key,
1843                                 guint8               modifiers)
1844 {
1845   gint return_val;
1846
1847   g_return_if_fail (widget != NULL);
1848
1849   gtk_widget_ref (widget);
1850   return_val = TRUE;
1851   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[INSTALL_ACCELERATOR],
1852                    signal_name, key, modifiers, &return_val);
1853   if (return_val)
1854     gtk_accelerator_table_install (table,
1855                                    GTK_OBJECT (widget),
1856                                    signal_name,
1857                                    key,
1858                                    modifiers);
1859   gtk_widget_unref (widget);
1860 }
1861
1862 /*****************************************
1863  * gtk_widget_remove_accelerator:
1864  *
1865  *   arguments:
1866  *
1867  *   results:
1868  *****************************************/
1869
1870 void
1871 gtk_widget_remove_accelerator (GtkWidget           *widget,
1872                                GtkAcceleratorTable *table,
1873                                const gchar         *signal_name)
1874 {
1875   g_return_if_fail (widget != NULL);
1876
1877   gtk_widget_ref (widget);
1878   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[REMOVE_ACCELERATOR],
1879                    signal_name);
1880   gtk_accelerator_table_remove (table, GTK_OBJECT (widget), signal_name);
1881   gtk_widget_unref (widget);
1882 }
1883
1884 /*****************************************
1885  * gtk_widget_event:
1886  *
1887  *   arguments:
1888  *
1889  *   results:
1890  *****************************************/
1891
1892 gint
1893 gtk_widget_event (GtkWidget *widget,
1894                   GdkEvent  *event)
1895 {
1896   gint return_val;
1897   gint signal_num;
1898
1899   g_return_val_if_fail (widget != NULL, TRUE);
1900
1901   gtk_widget_ref (widget);
1902   return_val = FALSE;
1903   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[EVENT], event,
1904                    &return_val);
1905   if (return_val || GTK_OBJECT_DESTROYED (widget))
1906     {
1907       gtk_widget_unref (widget);
1908       return TRUE;
1909     }
1910
1911   switch (event->type)
1912     {
1913     case GDK_NOTHING:
1914       signal_num = -1;
1915       break;
1916     case GDK_BUTTON_PRESS:
1917     case GDK_2BUTTON_PRESS:
1918     case GDK_3BUTTON_PRESS:
1919       signal_num = BUTTON_PRESS_EVENT;
1920       break;
1921     case GDK_BUTTON_RELEASE:
1922       signal_num = BUTTON_RELEASE_EVENT;
1923       break;
1924     case GDK_MOTION_NOTIFY:
1925       signal_num = MOTION_NOTIFY_EVENT;
1926       break;
1927     case GDK_DELETE:
1928       signal_num = DELETE_EVENT;
1929       break;
1930     case GDK_DESTROY:
1931       signal_num = DESTROY_EVENT;
1932       break;
1933     case GDK_KEY_PRESS:
1934       signal_num = KEY_PRESS_EVENT;
1935       break;
1936     case GDK_KEY_RELEASE:
1937       signal_num = KEY_RELEASE_EVENT;
1938       break;
1939     case GDK_ENTER_NOTIFY:
1940       signal_num = ENTER_NOTIFY_EVENT;
1941       break;
1942     case GDK_LEAVE_NOTIFY:
1943       signal_num = LEAVE_NOTIFY_EVENT;
1944       break;
1945     case GDK_FOCUS_CHANGE:
1946       if (event->focus_change.in)
1947         signal_num = FOCUS_IN_EVENT;
1948       else
1949         signal_num = FOCUS_OUT_EVENT;
1950       break;
1951     case GDK_CONFIGURE:
1952       signal_num = CONFIGURE_EVENT;
1953       break;
1954     case GDK_MAP:
1955       signal_num = MAP_EVENT;
1956       break;
1957     case GDK_UNMAP:
1958       signal_num = UNMAP_EVENT;
1959       break;
1960     case GDK_PROPERTY_NOTIFY:
1961       signal_num = PROPERTY_NOTIFY_EVENT;
1962       break;
1963     case GDK_SELECTION_CLEAR:
1964       signal_num = SELECTION_CLEAR_EVENT;
1965       break;
1966     case GDK_SELECTION_REQUEST:
1967       signal_num = SELECTION_REQUEST_EVENT;
1968       break;
1969     case GDK_SELECTION_NOTIFY:
1970       signal_num = SELECTION_NOTIFY_EVENT;
1971       break;
1972     case GDK_PROXIMITY_IN:
1973       signal_num = PROXIMITY_IN_EVENT;
1974       break;
1975     case GDK_PROXIMITY_OUT:
1976       signal_num = PROXIMITY_OUT_EVENT;
1977       break;
1978     case GDK_DRAG_BEGIN:
1979       signal_num = DRAG_BEGIN_EVENT;
1980       break;
1981     case GDK_DRAG_REQUEST:
1982       signal_num = DRAG_REQUEST_EVENT;
1983       break;
1984     case GDK_DROP_ENTER:
1985       signal_num = DROP_ENTER_EVENT;
1986       break;
1987     case GDK_DROP_LEAVE:
1988       signal_num = DROP_LEAVE_EVENT;
1989       break;
1990     case GDK_DROP_DATA_AVAIL:
1991       signal_num = DROP_DATA_AVAILABLE_EVENT;
1992       break;
1993     case GDK_OTHER_EVENT:
1994       signal_num = OTHER_EVENT;
1995       break;
1996     case GDK_NO_EXPOSE:
1997       signal_num = NO_EXPOSE_EVENT;
1998       break;
1999     case GDK_CLIENT_EVENT:
2000       signal_num = CLIENT_EVENT;
2001       break;
2002     case GDK_EXPOSE:
2003       /* there is no sense in providing a widget with bogus expose events
2004        */
2005       if (!event->any.window)
2006         {
2007           gtk_widget_unref (widget);
2008           return TRUE;
2009         }
2010       signal_num = EXPOSE_EVENT;
2011       break;
2012     default:
2013       g_warning ("could not determine signal number for event: %d", event->type);
2014       gtk_widget_unref (widget);
2015       return TRUE;
2016     }
2017
2018   if (signal_num != -1)
2019     gtk_signal_emit (GTK_OBJECT (widget), widget_signals[signal_num], event, &return_val);
2020
2021   return_val |= GTK_OBJECT_DESTROYED (widget);
2022
2023   gtk_widget_unref (widget);
2024
2025   return return_val;
2026 }
2027
2028 /*****************************************
2029  * gtk_widget_activate:
2030  *
2031  *   arguments:
2032  *
2033  *   results:
2034  *****************************************/
2035
2036 void
2037 gtk_widget_activate (GtkWidget *widget)
2038 {
2039   g_return_if_fail (widget != NULL);
2040   g_return_if_fail (GTK_IS_WIDGET (widget));
2041
2042   if (WIDGET_CLASS (widget)->activate_signal)
2043     gtk_signal_emit (GTK_OBJECT (widget), WIDGET_CLASS (widget)->activate_signal);
2044 }
2045
2046 /*****************************************
2047  * gtk_widget_reparent_container_child:
2048  *   assistent function to gtk_widget_reparent
2049  *
2050  *   arguments:
2051  *
2052  *   results:
2053  *****************************************/
2054
2055 static void
2056 gtk_widget_reparent_container_child(GtkWidget *widget,
2057                                    gpointer   client_data)
2058 {
2059   g_return_if_fail (widget != NULL);
2060   g_return_if_fail (client_data != NULL);
2061
2062   if (GTK_WIDGET_NO_WINDOW (widget))
2063     {
2064       if (widget->window)
2065         gdk_window_unref (widget->window);
2066       widget->window = (GdkWindow*) client_data;
2067       if (widget->window)
2068         gdk_window_ref (widget->window);
2069
2070       if (GTK_IS_CONTAINER (widget))
2071         gtk_container_foreach (GTK_CONTAINER (widget),
2072                                gtk_widget_reparent_container_child,
2073                                client_data);
2074     }
2075   else
2076     gdk_window_reparent (widget->window,
2077                          (GdkWindow*) client_data, 0, 0);
2078 }
2079
2080 /*****************************************
2081  * gtk_widget_reparent:
2082  *
2083  *   arguments:
2084  *
2085  *   results:
2086  *****************************************/
2087
2088 void
2089 gtk_widget_reparent (GtkWidget *widget,
2090                      GtkWidget *new_parent)
2091 {
2092   g_return_if_fail (widget != NULL);
2093   g_return_if_fail (GTK_IS_WIDGET (widget));
2094   g_return_if_fail (new_parent != NULL);
2095   g_return_if_fail (GTK_IS_CONTAINER (new_parent));
2096   g_return_if_fail (widget->parent != NULL);
2097
2098   if (widget->parent != new_parent)
2099     {
2100       /* First try to see if we can get away without unrealizing
2101        * the widget as we reparent it. if so we set a flag so
2102        * that gtk_widget_unparent doesn't unrealize widget
2103        */
2104       if (GTK_WIDGET_REALIZED (widget) && GTK_WIDGET_REALIZED (new_parent))
2105         GTK_PRIVATE_SET_FLAG (widget, GTK_IN_REPARENT);
2106
2107       gtk_widget_ref (widget);
2108       gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
2109       gtk_container_add (GTK_CONTAINER (new_parent), widget);
2110       gtk_widget_unref (widget);
2111
2112       if (GTK_WIDGET_IN_REPARENT (widget))
2113         {
2114           GTK_PRIVATE_UNSET_FLAG (widget, GTK_IN_REPARENT);
2115
2116           /* OK, now fix up the widget's window. (And that for any
2117            * children, if the widget is NO_WINDOW and a container)
2118            */
2119           if (GTK_WIDGET_NO_WINDOW (widget))
2120             {
2121               if (GTK_IS_CONTAINER (widget))
2122                 gtk_container_foreach (GTK_CONTAINER (widget),
2123                                        gtk_widget_reparent_container_child,
2124                                        gtk_widget_get_parent_window (widget));
2125               else
2126                 {
2127                   GdkWindow *parent_window;
2128
2129                   parent_window = gtk_widget_get_parent_window (widget);
2130                   if (parent_window != widget->window)
2131                     {
2132                       if (widget->window)
2133                         gdk_window_unref (widget->window);
2134                       widget->window = parent_window;
2135                       if (widget->window)
2136                         gdk_window_ref (widget->window);
2137                     }
2138                 }
2139             }
2140           else
2141             gdk_window_reparent (widget->window, gtk_widget_get_parent_window (widget), 0, 0);
2142         }
2143     }
2144 }
2145
2146 /*****************************************
2147  * gtk_widget_popup:
2148  *
2149  *   arguments:
2150  *
2151  *   results:
2152  *****************************************/
2153
2154 void
2155 gtk_widget_popup (GtkWidget *widget,
2156                   gint       x,
2157                   gint       y)
2158 {
2159   g_return_if_fail (widget != NULL);
2160
2161   if (!GTK_WIDGET_VISIBLE (widget))
2162     {
2163       if (!GTK_WIDGET_REALIZED (widget))
2164         gtk_widget_realize (widget);
2165       if (!GTK_WIDGET_NO_WINDOW (widget))
2166         gdk_window_move (widget->window, x, y);
2167       gtk_widget_show (widget);
2168     }
2169 }
2170
2171 /*****************************************
2172  * gtk_widget_intersect:
2173  *
2174  *   arguments:
2175  *
2176  *   results:
2177  *****************************************/
2178
2179 gint
2180 gtk_widget_intersect (GtkWidget    *widget,
2181                       GdkRectangle *area,
2182                       GdkRectangle *intersection)
2183 {
2184   GdkRectangle *dest;
2185   GdkRectangle tmp;
2186   gint return_val;
2187
2188   g_return_val_if_fail (widget != NULL, FALSE);
2189   g_return_val_if_fail (area != NULL, FALSE);
2190
2191   if (intersection)
2192     dest = intersection;
2193   else
2194     dest = &tmp;
2195
2196   return_val = gdk_rectangle_intersect ((GdkRectangle*) &widget->allocation, area, dest);
2197
2198   if (return_val && intersection && !GTK_WIDGET_NO_WINDOW (widget))
2199     {
2200       intersection->x -= widget->allocation.x;
2201       intersection->y -= widget->allocation.y;
2202     }
2203
2204   return return_val;
2205 }
2206
2207
2208 gint
2209 gtk_widget_basic (GtkWidget *widget)
2210 {
2211   GList *children;
2212   GList *tmp_list;
2213   gint return_val;
2214
2215   g_return_val_if_fail (widget != NULL, FALSE);
2216
2217   if (!GTK_WIDGET_BASIC (widget))
2218     return FALSE;
2219   else if (GTK_IS_CONTAINER (widget))
2220     {
2221       children = gtk_container_children (GTK_CONTAINER (widget));
2222       if (children)
2223         {
2224           return_val = TRUE;
2225           tmp_list = children;
2226
2227           while (tmp_list)
2228             {
2229               if (!gtk_widget_basic (GTK_WIDGET (tmp_list->data)))
2230                 {
2231                   return_val = FALSE;
2232                   break;
2233                 }
2234
2235               tmp_list = tmp_list->next;
2236             }
2237
2238           g_list_free (children);
2239           return return_val;
2240         }
2241     }
2242
2243   return TRUE;
2244 }
2245
2246
2247 /*****************************************
2248  * gtk_widget_grab_focus:
2249  *
2250  *   arguments:
2251  *
2252  *   results:
2253  *****************************************/
2254
2255 void
2256 gtk_widget_grab_focus (GtkWidget *widget)
2257 {
2258   g_return_if_fail (widget != NULL);
2259   g_return_if_fail (GTK_IS_WIDGET (widget));
2260
2261   if (GTK_WIDGET_CAN_FOCUS (widget))
2262     {
2263       GtkWidget *parent;
2264       GtkWidget *child;
2265       GtkType window_type;
2266
2267       window_type = gtk_window_get_type ();
2268       parent = widget->parent;
2269       child = widget;
2270
2271       while (parent && !GTK_TYPE_IS_A (GTK_WIDGET_TYPE (parent), window_type))
2272         {
2273           gtk_container_set_focus_child (GTK_CONTAINER (parent), child);
2274           child = parent;
2275           parent = parent->parent;
2276         }
2277
2278       if (parent && GTK_TYPE_IS_A (GTK_WIDGET_TYPE (parent), window_type))
2279         {
2280           gtk_container_set_focus_child (GTK_CONTAINER (parent), child);
2281           gtk_window_set_focus (GTK_WINDOW (parent), widget);
2282         }
2283     }
2284 }
2285
2286 /*****************************************
2287  * gtk_widget_grab_default:
2288  *
2289  *   arguments:
2290  *
2291  *   results:
2292  *****************************************/
2293
2294 void
2295 gtk_widget_grab_default (GtkWidget *widget)
2296 {
2297   GtkWidget *window;
2298   GtkType window_type;
2299
2300   g_return_if_fail (widget != NULL);
2301   g_return_if_fail (GTK_WIDGET_CAN_DEFAULT (widget));
2302
2303   window_type = gtk_window_get_type ();
2304   window = widget->parent;
2305
2306   while (window && !GTK_TYPE_IS_A (GTK_WIDGET_TYPE (window), window_type))
2307     window = window->parent;
2308
2309   if (window && GTK_TYPE_IS_A (GTK_WIDGET_TYPE (window), window_type))
2310     gtk_window_set_default (GTK_WINDOW (window), widget);
2311 }
2312
2313 /*****************************************
2314  * gtk_widget_set_name:
2315  *
2316  *   arguments:
2317  *
2318  *   results:
2319  *****************************************/
2320
2321 void
2322 gtk_widget_set_name (GtkWidget   *widget,
2323                      const gchar *name)
2324 {
2325   g_return_if_fail (widget != NULL);
2326
2327   if (widget->name)
2328     g_free (widget->name);
2329   widget->name = g_strdup (name);
2330
2331   if (!GTK_WIDGET_USER_STYLE (widget))
2332     gtk_widget_set_rc_style (widget);
2333 }
2334
2335 /*****************************************
2336  * gtk_widget_get_name:
2337  *
2338  *   arguments:
2339  *
2340  *   results:
2341  *****************************************/
2342
2343 gchar*
2344 gtk_widget_get_name (GtkWidget *widget)
2345 {
2346   g_return_val_if_fail (widget != NULL, NULL);
2347
2348   if (widget->name)
2349     return widget->name;
2350   return gtk_type_name (GTK_WIDGET_TYPE (widget));
2351 }
2352
2353 /*****************************************
2354  * gtk_widget_set_state:
2355  *
2356  *   arguments:
2357  *     widget
2358  *     state
2359  *
2360  *   results:
2361  *****************************************/
2362
2363 void
2364 gtk_widget_set_state (GtkWidget           *widget,
2365                       GtkStateType         state)
2366 {
2367   g_return_if_fail (widget != NULL);
2368   g_return_if_fail (GTK_IS_WIDGET (widget));
2369
2370   if (state == GTK_WIDGET_STATE (widget))
2371     return;
2372
2373   if (state == GTK_STATE_INSENSITIVE)
2374     gtk_widget_set_sensitive (widget, FALSE);
2375   else
2376     {
2377       GtkStateData data;
2378
2379       data.state = state;
2380       data.state_restauration = FALSE;
2381       if (widget->parent)
2382         data.parent_sensitive = (GTK_WIDGET_IS_SENSITIVE (widget->parent) != FALSE);
2383       else
2384         data.parent_sensitive = TRUE;
2385
2386       gtk_widget_propagate_state (widget, &data);
2387       gtk_widget_queue_draw (widget);
2388     }
2389 }
2390
2391 /*****************************************
2392  * gtk_widget_set_sensitive:
2393  *
2394  *   arguments:
2395  *     widget
2396  *     boolean value for sensitivity
2397  *
2398  *   results:
2399  *****************************************/
2400
2401 void
2402 gtk_widget_set_sensitive (GtkWidget *widget,
2403                           gint       sensitive)
2404 {
2405   GtkStateData data;
2406
2407   g_return_if_fail (widget != NULL);
2408   g_return_if_fail (GTK_IS_WIDGET (widget));
2409
2410   sensitive = (sensitive != FALSE);
2411
2412   if (sensitive == (GTK_WIDGET_SENSITIVE (widget) != FALSE))
2413     return;
2414
2415   if (sensitive)
2416     {
2417       GTK_WIDGET_SET_FLAGS (widget, GTK_SENSITIVE);
2418       data.state = GTK_WIDGET_SAVED_STATE (widget);
2419     }
2420   else
2421     {
2422       GTK_WIDGET_UNSET_FLAGS (widget, GTK_SENSITIVE);
2423       data.state = GTK_WIDGET_STATE (widget);
2424     }
2425   data.state_restauration = TRUE;
2426
2427   if (widget->parent)
2428     data.parent_sensitive = (GTK_WIDGET_IS_SENSITIVE (widget->parent) != FALSE);
2429   else
2430     data.parent_sensitive = TRUE;
2431
2432   gtk_widget_propagate_state (widget, &data);
2433   gtk_widget_queue_draw (widget);
2434 }
2435
2436 /*****************************************
2437  * gtk_widget_set_parent:
2438  *
2439  *   arguments:
2440  *
2441  *   results:
2442  *****************************************/
2443
2444 void
2445 gtk_widget_set_parent (GtkWidget *widget,
2446                        GtkWidget *parent)
2447 {
2448   GtkStateData data;
2449
2450   g_return_if_fail (widget != NULL);
2451   g_return_if_fail (widget->parent == NULL);
2452   g_return_if_fail (!GTK_WIDGET_TOPLEVEL (widget));
2453   g_return_if_fail (parent != NULL);
2454
2455   /* keep this function in sync with gtk_menu_attach_to_widget()
2456    */
2457
2458   gtk_widget_ref (widget);
2459   gtk_object_sink (GTK_OBJECT (widget));
2460   widget->parent = parent;
2461
2462   if (GTK_WIDGET_STATE (parent) != GTK_STATE_NORMAL)
2463     data.state = GTK_WIDGET_STATE (parent);
2464   else
2465     data.state = GTK_WIDGET_STATE (widget);
2466   data.state_restauration = FALSE;
2467   data.parent_sensitive = (GTK_WIDGET_IS_SENSITIVE (parent) != FALSE);
2468
2469   gtk_widget_propagate_state (widget, &data);
2470
2471   while (parent->parent != NULL)
2472     parent = parent->parent;
2473
2474   gtk_widget_set_style_recurse (widget, NULL);
2475
2476   gtk_signal_emit (GTK_OBJECT (widget), widget_signals[PARENT_SET], NULL);
2477 }
2478
2479 /*****************************************
2480  * Widget styles
2481  * see docs/styles.txt
2482  *****************************************/
2483 void
2484 gtk_widget_set_style (GtkWidget *widget,
2485                       GtkStyle  *style)
2486 {
2487   GtkStyle *default_style;
2488   gboolean initial_emission;
2489
2490   g_return_if_fail (widget != NULL);
2491   g_return_if_fail (style != NULL);
2492
2493   initial_emission = !GTK_WIDGET_RC_STYLE (widget) && !GTK_WIDGET_USER_STYLE (widget);
2494
2495   GTK_WIDGET_UNSET_FLAGS (widget, GTK_RC_STYLE);
2496   GTK_PRIVATE_SET_FLAG (widget, GTK_USER_STYLE);
2497
2498   default_style = gtk_object_get_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id);
2499   if (!default_style)
2500     {
2501       gtk_style_ref (widget->style);
2502       if (!saved_default_style_key_id)
2503         saved_default_style_key_id = gtk_object_data_force_id (saved_default_style_key);
2504       gtk_object_set_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id, widget->style);
2505     }
2506
2507   gtk_widget_set_style_internal (widget, style, initial_emission);
2508 }
2509
2510 void
2511 gtk_widget_ensure_style (GtkWidget *widget)
2512 {
2513   if (!GTK_WIDGET_USER_STYLE (widget) &&
2514       !GTK_WIDGET_RC_STYLE (widget))
2515     gtk_widget_set_rc_style (widget);
2516 }
2517
2518 void
2519 gtk_widget_set_rc_style (GtkWidget *widget)
2520 {
2521   GtkStyle *saved_style;
2522   GtkStyle *new_style;
2523   gboolean initial_emission;
2524
2525   g_return_if_fail (widget != NULL);
2526
2527   initial_emission = !GTK_WIDGET_RC_STYLE (widget) && !GTK_WIDGET_USER_STYLE (widget);
2528
2529   GTK_PRIVATE_UNSET_FLAG (widget, GTK_USER_STYLE);
2530   GTK_WIDGET_SET_FLAGS (widget, GTK_RC_STYLE);
2531
2532   saved_style = gtk_object_get_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id);
2533   new_style = gtk_rc_get_style (widget);
2534   if (new_style)
2535     {
2536       if (!saved_style)
2537         {
2538           gtk_style_ref (widget->style);
2539           if (!saved_default_style_key_id)
2540             saved_default_style_key_id = gtk_object_data_force_id (saved_default_style_key);
2541           gtk_object_set_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id, widget->style);
2542         }
2543       gtk_widget_set_style_internal (widget, new_style, initial_emission);
2544     }
2545   else
2546     {
2547       if (saved_style)
2548         {
2549           g_assert (initial_emission == FALSE); /* FIXME: remove this line */
2550
2551           gtk_object_remove_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id);
2552           gtk_widget_set_style_internal (widget, saved_style, initial_emission);
2553           gtk_style_unref (saved_style);
2554         }
2555       else
2556         {
2557           if (initial_emission)
2558             gtk_widget_set_style_internal (widget, widget->style, TRUE);
2559         }
2560     }
2561 }
2562
2563 void
2564 gtk_widget_restore_default_style (GtkWidget *widget)
2565 {
2566   GtkStyle *default_style;
2567
2568   g_return_if_fail (widget != NULL);
2569
2570   GTK_PRIVATE_UNSET_FLAG (widget, GTK_USER_STYLE);
2571
2572   default_style = gtk_object_get_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id);
2573   if (default_style)
2574     {
2575       gtk_object_remove_data_by_id (GTK_OBJECT (widget), saved_default_style_key_id);
2576       gtk_widget_set_style_internal (widget, default_style, FALSE);
2577       gtk_style_unref (default_style);
2578     }
2579 }
2580
2581 GtkStyle*
2582 gtk_widget_get_style (GtkWidget *widget)
2583 {
2584   g_return_val_if_fail (widget != NULL, NULL);
2585
2586   return widget->style;
2587 }
2588
2589 static void
2590 gtk_widget_style_set (GtkWidget *widget,
2591                       GtkStyle  *previous_style)
2592 {
2593   if (GTK_WIDGET_REALIZED (widget) &&
2594       !GTK_WIDGET_NO_WINDOW (widget))
2595     {
2596       gtk_style_set_background (widget->style, widget->window, widget->state);
2597       if (GTK_WIDGET_DRAWABLE (widget))
2598         gdk_window_clear (widget->window);
2599     }
2600 }
2601
2602 static void
2603 gtk_widget_set_style_internal (GtkWidget *widget,
2604                                GtkStyle  *style,
2605                                gboolean   initial_emission)
2606 {
2607   g_return_if_fail (widget != NULL);
2608   g_return_if_fail (style != NULL);
2609
2610   if (widget->style != style)
2611     {
2612       GtkStyle *previous_style;
2613
2614       if (GTK_WIDGET_REALIZED (widget))
2615         gtk_style_detach (widget->style);
2616
2617       previous_style = widget->style;
2618       widget->style = style;
2619       gtk_style_ref (widget->style);
2620
2621       if (GTK_WIDGET_REALIZED (widget))
2622         widget->style = gtk_style_attach (widget->style, widget->window);
2623
2624       gtk_signal_emit (GTK_OBJECT (widget),
2625                        widget_signals[STYLE_SET],
2626                        initial_emission ? NULL : previous_style);
2627       gtk_style_unref (previous_style);
2628
2629       if (widget->parent && !initial_emission)
2630         {
2631           GtkRequisition old_requisition;
2632
2633           old_requisition = widget->requisition;
2634           gtk_widget_size_request (widget, &widget->requisition);
2635
2636           if ((old_requisition.width != widget->requisition.width) ||
2637               (old_requisition.height != widget->requisition.height))
2638             gtk_widget_queue_resize (widget);
2639           else if (GTK_WIDGET_DRAWABLE (widget))
2640             gtk_widget_queue_draw (widget);
2641         }
2642     }
2643   else if (initial_emission)
2644     {
2645       gtk_signal_emit (GTK_OBJECT (widget),
2646                        widget_signals[STYLE_SET],
2647                        NULL);
2648     }
2649 }
2650
2651 static void
2652 gtk_widget_set_style_recurse (GtkWidget *widget,
2653                               gpointer   client_data)
2654 {
2655   if (GTK_WIDGET_RC_STYLE (widget))
2656     gtk_widget_set_rc_style (widget);
2657
2658   if (GTK_IS_CONTAINER (widget))
2659     gtk_container_foreach (GTK_CONTAINER (widget),
2660                            gtk_widget_set_style_recurse,
2661                            NULL);
2662 }
2663
2664 void
2665 gtk_widget_reset_rc_styles (GtkWidget *widget)
2666 {
2667   gtk_widget_set_style_recurse (widget, NULL);
2668 }
2669
2670 void
2671 gtk_widget_set_default_style (GtkStyle *style)
2672 {
2673    if (style != default_style)
2674      {
2675        if (default_style)
2676          gtk_style_unref (default_style);
2677        default_style = style;
2678        if (default_style)
2679          gtk_style_ref (default_style);
2680      }
2681 }
2682
2683 GtkStyle*
2684 gtk_widget_get_default_style (void)
2685 {
2686   if (!default_style)
2687     {
2688       default_style = gtk_style_new ();
2689       gtk_style_ref (default_style);
2690     }
2691
2692   return default_style;
2693 }
2694
2695 void
2696 gtk_widget_push_style (GtkStyle *style)
2697 {
2698   g_return_if_fail (style != NULL);
2699
2700   gtk_style_ref (style);
2701   style_stack = g_slist_prepend (style_stack, style);
2702 }
2703
2704 static GtkStyle*
2705 gtk_widget_peek_style (void)
2706 {
2707   if (style_stack)
2708     return (GtkStyle*) style_stack->data;
2709   else
2710     return gtk_widget_get_default_style ();
2711 }
2712
2713 void
2714 gtk_widget_pop_style (void)
2715 {
2716   GSList *tmp;
2717
2718   if (style_stack)
2719     {
2720       tmp = style_stack;
2721       style_stack = style_stack->next;
2722       gtk_style_unref ((GtkStyle*) tmp->data);
2723       g_slist_free_1 (tmp);
2724     }
2725 }
2726
2727 /* Basically, send a message to all toplevel windows telling them
2728  * that a new _GTK_STYLE_COLORS property is available on the root
2729  * window
2730  */
2731 void
2732 gtk_widget_propagate_default_style (void)
2733 {
2734   GdkEventClient sev;
2735   int i;
2736
2737   /* Set the property on the root window */
2738   gdk_property_change(GDK_ROOT_PARENT(),
2739                       gdk_atom_intern("_GTK_DEFAULT_COLORS", FALSE),
2740                       gdk_atom_intern("STRING", FALSE),
2741                       8*sizeof(gushort),
2742                       GDK_PROP_MODE_REPLACE,
2743                       (guchar *)gtk_widget_get_default_style(),
2744                       GTK_STYLE_NUM_STYLECOLORS() * sizeof(GdkColor));
2745
2746   for(i = 0; i < 5; i++)
2747     sev.data.l[i] = 0;
2748   sev.data_format = 32;
2749   sev.message_type = gdk_atom_intern ("_GTK_STYLE_CHANGED", FALSE);
2750   gdk_event_send_clientmessage_toall ((GdkEvent *) &sev);
2751 }
2752
2753 /*************************************************************
2754  * gtk_widget_set_parent_window:
2755  *     Set a non default parent window for widget
2756  *
2757  *   arguments:
2758  *     widget:
2759  *     parent_window
2760  *
2761  *   results:
2762  *************************************************************/
2763
2764 void
2765 gtk_widget_set_parent_window   (GtkWidget           *widget,
2766                                 GdkWindow           *parent_window)
2767 {
2768   GdkWindow *old_parent_window;
2769
2770   g_return_if_fail (widget != NULL);
2771
2772   old_parent_window = gtk_object_get_data_by_id (GTK_OBJECT (widget),
2773                                                  parent_window_key_id);
2774
2775   if (parent_window != old_parent_window)
2776     {
2777       if (!parent_window_key_id)
2778         parent_window_key_id = gtk_object_data_force_id (parent_window_key);
2779       gtk_object_set_data_by_id (GTK_OBJECT (widget), parent_window_key_id,
2780                                  parent_window);
2781       if (old_parent_window)
2782         gdk_window_unref (old_parent_window);
2783       if (parent_window)
2784         gdk_window_ref (parent_window);
2785     }
2786 }
2787
2788 /*************************************************************
2789  * gtk_widget_get_parent_window:
2790  *     Get widget's parent window
2791  *
2792  *   arguments:
2793  *     widget:
2794  *
2795  *   results:
2796  *     parent window
2797  *************************************************************/
2798
2799 GdkWindow *
2800 gtk_widget_get_parent_window   (GtkWidget           *widget)
2801 {
2802   GdkWindow *parent_window;
2803
2804   g_return_val_if_fail (widget != NULL, NULL);
2805   g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
2806   g_return_val_if_fail (widget->parent != NULL, NULL);
2807
2808   parent_window = gtk_object_get_data_by_id (GTK_OBJECT (widget),
2809                                              parent_window_key_id);
2810
2811   return (parent_window != NULL) ? parent_window : widget->parent->window;
2812 }
2813
2814 /*****************************************
2815  * gtk_widget_set_uposition:
2816  *
2817  *   arguments:
2818  *
2819  *   results:
2820  *****************************************/
2821
2822 void
2823 gtk_widget_set_uposition (GtkWidget *widget,
2824                           gint       x,
2825                           gint       y)
2826 {
2827   GtkWidgetAuxInfo *aux_info;
2828
2829   g_return_if_fail (widget != NULL);
2830
2831   aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
2832   if (!aux_info)
2833     {
2834       if (!aux_info_key_id)
2835         aux_info_key_id = gtk_object_data_force_id (aux_info_key);
2836       aux_info = gtk_widget_aux_info_new ();
2837       gtk_object_set_data_by_id (GTK_OBJECT (widget), aux_info_key_id, aux_info);
2838     }
2839
2840   if (x > -2)
2841     aux_info->x = x;
2842   if (y > -2)
2843     aux_info->y = y;
2844
2845   if (GTK_WIDGET_REALIZED (widget) && GTK_IS_WINDOW (widget) &&
2846       (aux_info->x != -1) && (aux_info->y != -1))
2847     {
2848       gdk_window_set_hints (widget->window, aux_info->x, aux_info->y, 0, 0, 0, 0, GDK_HINT_POS);
2849       gdk_window_move (widget->window, aux_info->x, aux_info->y);
2850     }
2851
2852   if (GTK_WIDGET_VISIBLE (widget) && widget->parent)
2853     gtk_widget_size_allocate (widget, &widget->allocation);
2854 }
2855
2856 /*****************************************
2857  * gtk_widget_set_usize:
2858  *
2859  *   arguments:
2860  *
2861  *   results:
2862  *****************************************/
2863
2864 void
2865 gtk_widget_set_usize (GtkWidget *widget,
2866                       gint       width,
2867                       gint       height)
2868 {
2869   GtkWidgetAuxInfo *aux_info;
2870
2871   g_return_if_fail (widget != NULL);
2872
2873   aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
2874   if (!aux_info)
2875     {
2876       if (!aux_info_key_id)
2877         aux_info_key_id = gtk_object_data_force_id (aux_info_key);
2878       aux_info = gtk_widget_aux_info_new ();
2879       gtk_object_set_data_by_id (GTK_OBJECT (widget), aux_info_key_id, aux_info);
2880     }
2881
2882   if (width > -1)
2883     aux_info->width = width;
2884   if (height > -1)
2885     aux_info->height = height;
2886
2887   if (GTK_WIDGET_VISIBLE (widget))
2888     gtk_widget_queue_resize (widget);
2889 }
2890
2891 /*****************************************
2892  * gtk_widget_set_events:
2893  *
2894  *   arguments:
2895  *
2896  *   results:
2897  *****************************************/
2898
2899 void
2900 gtk_widget_set_events (GtkWidget *widget,
2901                        gint       events)
2902 {
2903   gint *eventp;
2904
2905   g_return_if_fail (widget != NULL);
2906   g_return_if_fail (!GTK_WIDGET_NO_WINDOW (widget));
2907   g_return_if_fail (!GTK_WIDGET_REALIZED (widget));
2908
2909   eventp = gtk_object_get_data_by_id (GTK_OBJECT (widget), event_key_id);
2910
2911   if (events)
2912     {
2913       if (!eventp)
2914         eventp = g_new (gint, 1);
2915
2916       *eventp = events;
2917       if (!event_key_id)
2918         event_key_id = gtk_object_data_force_id (event_key);
2919       gtk_object_set_data_by_id (GTK_OBJECT (widget), event_key_id, eventp);
2920     }
2921   else if (eventp)
2922     {
2923       g_free (eventp);
2924       gtk_object_remove_data_by_id (GTK_OBJECT (widget), event_key_id);
2925     }
2926 }
2927
2928 /*****************************************
2929  * gtk_widget_set_extension_events:
2930  *
2931  *   arguments:
2932  *
2933  *   results:
2934  *****************************************/
2935
2936 void
2937 gtk_widget_set_extension_events (GtkWidget *widget,
2938                                  GdkExtensionMode mode)
2939 {
2940   GdkExtensionMode *modep;
2941
2942   g_return_if_fail (widget != NULL);
2943
2944   modep = gtk_object_get_data_by_id (GTK_OBJECT (widget), extension_event_key_id);
2945
2946   if (!modep)
2947     modep = g_new (GdkExtensionMode, 1);
2948
2949   *modep = mode;
2950   if (!extension_event_key_id)
2951     extension_event_key_id = gtk_object_data_force_id (extension_event_key);
2952   gtk_object_set_data_by_id (GTK_OBJECT (widget), extension_event_key_id, modep);
2953 }
2954
2955
2956 /*****************************************
2957  * gtk_widget_get_toplevel:
2958  *
2959  *   arguments:
2960  *
2961  *   results:
2962  *****************************************/
2963
2964 GtkWidget*
2965 gtk_widget_get_toplevel (GtkWidget *widget)
2966 {
2967   g_return_val_if_fail (widget != NULL, NULL);
2968
2969   while (widget->parent)
2970     widget = widget->parent;
2971
2972   return widget;
2973 }
2974
2975 /*****************************************
2976  * gtk_widget_get_ancestor:
2977  *
2978  *   arguments:
2979  *
2980  *   results:
2981  *****************************************/
2982
2983 GtkWidget*
2984 gtk_widget_get_ancestor (GtkWidget *widget,
2985                          GtkType    widget_type)
2986 {
2987   g_return_val_if_fail (widget != NULL, NULL);
2988
2989   while (widget && !GTK_TYPE_IS_A (GTK_WIDGET_TYPE (widget), widget_type))
2990     widget = widget->parent;
2991
2992   if (!(widget && GTK_TYPE_IS_A (GTK_WIDGET_TYPE (widget), widget_type)))
2993     return NULL;
2994
2995   return widget;
2996 }
2997
2998 /*****************************************
2999  * gtk_widget_get_colormap:
3000  *
3001  *   arguments:
3002  *
3003  *   results:
3004  *****************************************/
3005
3006 GdkColormap*
3007 gtk_widget_get_colormap (GtkWidget *widget)
3008 {
3009   GdkColormap *colormap;
3010
3011   g_return_val_if_fail (widget != NULL, NULL);
3012
3013   if (!widget->window)
3014     {
3015       colormap = gtk_object_get_data (GTK_OBJECT (widget), colormap_key);
3016       if (colormap)
3017         return colormap;
3018       return gtk_widget_get_default_colormap ();
3019     }
3020
3021   return gdk_window_get_colormap (widget->window);
3022 }
3023
3024 /*****************************************
3025  * gtk_widget_get_visual:
3026  *
3027  *   arguments:
3028  *
3029  *   results:
3030  *****************************************/
3031
3032 GdkVisual*
3033 gtk_widget_get_visual (GtkWidget *widget)
3034 {
3035   GdkVisual *visual;
3036
3037   g_return_val_if_fail (widget != NULL, NULL);
3038
3039   if (!widget->window)
3040     {
3041       visual = gtk_object_get_data (GTK_OBJECT (widget), visual_key);
3042       if (visual)
3043         return visual;
3044       return gtk_widget_get_default_visual ();
3045     }
3046
3047   return gdk_window_get_visual (widget->window);
3048 }
3049
3050 /*****************************************
3051  * gtk_widget_get_events:
3052  *
3053  *   arguments:
3054  *
3055  *   results:
3056  *****************************************/
3057
3058 gint
3059 gtk_widget_get_events (GtkWidget *widget)
3060 {
3061   gint *events;
3062
3063   g_return_val_if_fail (widget != NULL, 0);
3064
3065   events = gtk_object_get_data_by_id (GTK_OBJECT (widget), event_key_id);
3066   if (events)
3067     return *events;
3068
3069   return 0;
3070 }
3071
3072 /*****************************************
3073  * gtk_widget_get_extension_events:
3074  *
3075  *   arguments:
3076  *
3077  *   results:
3078  *****************************************/
3079
3080 GdkExtensionMode
3081 gtk_widget_get_extension_events (GtkWidget *widget)
3082 {
3083   GdkExtensionMode *mode;
3084
3085   g_return_val_if_fail (widget != NULL, 0);
3086
3087   mode = gtk_object_get_data_by_id (GTK_OBJECT (widget), extension_event_key_id);
3088   if (mode)
3089     return *mode;
3090
3091   return 0;
3092 }
3093
3094 /*****************************************
3095  * gtk_widget_get_pointer:
3096  *
3097  *   arguments:
3098  *
3099  *   results:
3100  *****************************************/
3101
3102 void
3103 gtk_widget_get_pointer (GtkWidget *widget,
3104                         gint      *x,
3105                         gint      *y)
3106 {
3107   g_return_if_fail (widget != NULL);
3108
3109   if (x)
3110     *x = -1;
3111   if (y)
3112     *y = -1;
3113
3114   if (GTK_WIDGET_REALIZED (widget))
3115     {
3116       gdk_window_get_pointer (widget->window, x, y, NULL);
3117
3118       if (GTK_WIDGET_NO_WINDOW (widget))
3119         {
3120           if (x)
3121             *x -= widget->allocation.x;
3122           if (y)
3123             *y -= widget->allocation.y;
3124         }
3125     }
3126 }
3127
3128 /*****************************************
3129  * gtk_widget_is_ancestor:
3130  *
3131  *   arguments:
3132  *
3133  *   results:
3134  *****************************************/
3135
3136 gint
3137 gtk_widget_is_ancestor (GtkWidget *widget,
3138                         GtkWidget *ancestor)
3139 {
3140   g_return_val_if_fail (widget != NULL, FALSE);
3141   g_return_val_if_fail (ancestor != NULL, FALSE);
3142
3143   while (widget)
3144     {
3145       if (widget->parent == ancestor)
3146         return TRUE;
3147       widget = widget->parent;
3148     }
3149
3150   return FALSE;
3151 }
3152
3153 /*****************************************
3154  * gtk_widget_is_child:
3155  *
3156  *   arguments:
3157  *
3158  *   results:
3159  *****************************************/
3160
3161 gint
3162 gtk_widget_is_child (GtkWidget *widget,
3163                      GtkWidget *child)
3164 {
3165   g_return_val_if_fail (widget != NULL, FALSE);
3166   g_return_val_if_fail (child != NULL, FALSE);
3167
3168   return (child->parent == widget);
3169 }
3170
3171 /*****************************************
3172  * gtk_widget_push_colormap:
3173  *
3174  *   arguments:
3175  *
3176  *   results:
3177  *****************************************/
3178
3179 void
3180 gtk_widget_push_colormap (GdkColormap *cmap)
3181 {
3182   g_return_if_fail (cmap != NULL);
3183
3184   colormap_stack = g_slist_prepend (colormap_stack, cmap);
3185 }
3186
3187 /*****************************************
3188  * gtk_widget_push_visual:
3189  *
3190  *   arguments:
3191  *
3192  *   results:
3193  *****************************************/
3194
3195 void
3196 gtk_widget_push_visual (GdkVisual *visual)
3197 {
3198   g_return_if_fail (visual != NULL);
3199
3200   visual_stack = g_slist_prepend (visual_stack, visual);
3201 }
3202
3203 /*****************************************
3204  * gtk_widget_pop_colormap:
3205  *
3206  *   arguments:
3207  *
3208  *   results:
3209  *****************************************/
3210
3211 void
3212 gtk_widget_pop_colormap (void)
3213 {
3214   GSList *tmp;
3215
3216   if (colormap_stack)
3217     {
3218       tmp = colormap_stack;
3219       colormap_stack = colormap_stack->next;
3220       g_slist_free_1 (tmp);
3221     }
3222 }
3223
3224 /*****************************************
3225  * gtk_widget_pop_visual:
3226  *
3227  *   arguments:
3228  *
3229  *   results:
3230  *****************************************/
3231
3232 void
3233 gtk_widget_pop_visual (void)
3234 {
3235   GSList *tmp;
3236
3237   if (visual_stack)
3238     {
3239       tmp = visual_stack;
3240       visual_stack = visual_stack->next;
3241       g_slist_free_1 (tmp);
3242     }
3243 }
3244
3245 /*****************************************
3246  * gtk_widget_set_default_colormap:
3247  *
3248  *   arguments:
3249  *
3250  *   results:
3251  *****************************************/
3252
3253 void
3254 gtk_widget_set_default_colormap (GdkColormap *colormap)
3255 {
3256   if (default_colormap != colormap)
3257     {
3258       if (default_colormap)
3259         gdk_colormap_unref (default_colormap);
3260       default_colormap = colormap;
3261       if (default_colormap)
3262         gdk_colormap_ref (default_colormap);
3263     }
3264 }
3265
3266 /*****************************************
3267  * gtk_widget_set_default_visual:
3268  *
3269  *   arguments:
3270  *
3271  *   results:
3272  *****************************************/
3273
3274 void
3275 gtk_widget_set_default_visual (GdkVisual *visual)
3276 {
3277   default_visual = visual;
3278 }
3279
3280 /*****************************************
3281  * gtk_widget_get_default_colormap:
3282  *
3283  *   arguments:
3284  *
3285  *   results:
3286  *****************************************/
3287
3288 GdkColormap*
3289 gtk_widget_get_default_colormap (void)
3290 {
3291   if (!default_colormap)
3292     default_colormap = gdk_colormap_get_system ();
3293
3294   return default_colormap;
3295 }
3296
3297 /*****************************************
3298  * gtk_widget_get_default_visual:
3299  *
3300  *   arguments:
3301  *
3302  *   results:
3303  *****************************************/
3304
3305 GdkVisual*
3306 gtk_widget_get_default_visual (void)
3307 {
3308   if (!default_visual)
3309     default_visual = gdk_visual_get_system ();
3310
3311   return default_visual;
3312 }
3313
3314 /*****************************************
3315  * gtk_widget_marshal_signal_1:
3316  *
3317  *   arguments:
3318  *
3319  *   results:
3320  *****************************************/
3321
3322 static void
3323 gtk_widget_marshal_signal_1 (GtkObject      *object,
3324                              GtkSignalFunc   func,
3325                              gpointer        func_data,
3326                              GtkArg         *args)
3327 {
3328   GtkWidgetSignal1 rfunc;
3329
3330   rfunc = (GtkWidgetSignal1) func;
3331
3332   (* rfunc) (object,
3333              GTK_VALUE_POINTER (args[0]),
3334              func_data);
3335 }
3336
3337 /*****************************************
3338  * gtk_widget_marshal_signal_2:
3339  *
3340  *   arguments:
3341  *
3342  *   results:
3343  *****************************************/
3344
3345 static void
3346 gtk_widget_marshal_signal_2 (GtkObject      *object,
3347                              GtkSignalFunc   func,
3348                              gpointer        func_data,
3349                              GtkArg         *args)
3350 {
3351   GtkWidgetSignal2 rfunc;
3352   gint *return_val;
3353
3354   rfunc = (GtkWidgetSignal2) func;
3355   return_val = GTK_RETLOC_BOOL (args[3]);
3356
3357   *return_val = (* rfunc) (object,
3358                            GTK_VALUE_STRING (args[0]),
3359                            GTK_VALUE_CHAR (args[1]),
3360                            GTK_VALUE_INT (args[2]),
3361                            func_data);
3362 }
3363
3364 /*****************************************
3365  * gtk_widget_marshal_signal_3:
3366  *
3367  *   arguments:
3368  *
3369  *   results:
3370  *****************************************/
3371
3372 static void
3373 gtk_widget_marshal_signal_3 (GtkObject      *object,
3374                              GtkSignalFunc   func,
3375                              gpointer        func_data,
3376                              GtkArg         *args)
3377 {
3378   GtkWidgetSignal3 rfunc;
3379
3380   rfunc = (GtkWidgetSignal3) func;
3381
3382   (* rfunc) (object,
3383              GTK_VALUE_STRING (args[0]),
3384              func_data);
3385 }
3386
3387 /*****************************************
3388  * gtk_widget_marshal_signal_4:
3389  *
3390  *   arguments:
3391  *
3392  *   results:
3393  *****************************************/
3394
3395 static void
3396 gtk_widget_marshal_signal_4 (GtkObject      *object,
3397                              GtkSignalFunc   func,
3398                              gpointer        func_data,
3399                              GtkArg         *args)
3400 {
3401   GtkWidgetSignal4 rfunc;
3402   gint *return_val;
3403
3404   rfunc = (GtkWidgetSignal4) func;
3405   return_val = GTK_RETLOC_BOOL (args[1]);
3406
3407   *return_val = (* rfunc) (object,
3408                            GTK_VALUE_BOXED (args[0]),
3409                            func_data);
3410 }
3411
3412 /*****************************************
3413  * gtk_widget_marshal_signal_5:
3414  *
3415  *   arguments:
3416  *
3417  *   results:
3418  *****************************************/
3419
3420 static void
3421 gtk_widget_marshal_signal_5 (GtkObject      *object,
3422                              GtkSignalFunc   func,
3423                              gpointer        func_data,
3424                              GtkArg         *args)
3425 {
3426   GtkWidgetSignal5 rfunc;
3427
3428   rfunc = (GtkWidgetSignal5) func;
3429
3430   (* rfunc) (object,
3431              GTK_VALUE_UINT (args[0]),
3432              func_data);
3433 }
3434
3435 /*****************************************
3436  * gtk_widget_marshal_signal_6:
3437  *
3438  *   arguments:
3439  *
3440  *   results:
3441  *****************************************/
3442
3443 static void
3444 gtk_widget_marshal_signal_6 (GtkObject      *object,
3445                              GtkSignalFunc   func,
3446                              gpointer        func_data,
3447                              GtkArg         *args)
3448 {
3449   GtkWidgetSignal6 rfunc;
3450
3451   rfunc = (GtkWidgetSignal6) func;
3452
3453   (* rfunc) (object,
3454              GTK_VALUE_OBJECT (args[0]),
3455              func_data);
3456 }
3457
3458 /*****************************************
3459  * gtk_widget_marshal_signal_7:
3460  *
3461  *   arguments:
3462  *
3463  *   results:
3464  *****************************************/
3465
3466 static void
3467 gtk_widget_marshal_signal_7 (GtkObject      *object,
3468                              GtkSignalFunc   func,
3469                              gpointer        func_data,
3470                              GtkArg         *args)
3471 {
3472   GtkWidgetSignal7 rfunc;
3473
3474   rfunc = (GtkWidgetSignal7) func;
3475
3476   (* rfunc) (object,
3477              GTK_VALUE_BOXED (args[0]),
3478              func_data);
3479 }
3480
3481 static void
3482 gtk_widget_shutdown (GtkObject *object)
3483 {
3484   GtkWidget *widget;
3485
3486   /* gtk_object_destroy() will already hold a refcount on object
3487    */
3488   widget = GTK_WIDGET (object);
3489
3490   if (widget->parent)
3491     gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
3492
3493   GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
3494   if (GTK_WIDGET_REALIZED (widget))
3495     gtk_widget_unrealize (widget);
3496
3497   parent_class->shutdown (object);
3498 }
3499
3500 static void
3501 gtk_widget_real_destroy (GtkObject *object)
3502 {
3503   GtkWidget *widget;
3504   GtkStyle *saved_style;
3505
3506   /* gtk_object_destroy() will already hold a refcount on object
3507    */
3508   widget = GTK_WIDGET (object);
3509
3510   if (GTK_CONTAINER_RESIZE_PENDING (widget))
3511     {
3512       gtk_widget_resize_queue = g_slist_remove (gtk_widget_resize_queue, widget);
3513       GTK_PRIVATE_UNSET_FLAG (widget, GTK_RESIZE_PENDING);
3514     }
3515
3516   gtk_grab_remove (widget);
3517   gtk_selection_remove_all (widget);
3518   gtk_accelerator_tables_delete (object);
3519
3520   saved_style = gtk_object_get_data_by_id (object, saved_default_style_key_id);
3521   if (saved_style)
3522     {
3523       gtk_style_unref (saved_style);
3524       gtk_object_remove_data_by_id (object, saved_default_style_key_id);
3525     }
3526
3527   gtk_style_unref (widget->style);
3528   widget->style = NULL;
3529
3530   parent_class->destroy (object);
3531 }
3532
3533 static void
3534 gtk_widget_finalize (GtkObject *object)
3535 {
3536   GtkWidget *widget;
3537   GtkWidgetAuxInfo *aux_info;
3538   gint *events;
3539   GdkExtensionMode *mode;
3540
3541   widget = GTK_WIDGET (object);
3542
3543   if (widget->name)
3544     g_free (widget->name);
3545
3546   aux_info = gtk_object_get_data_by_id (GTK_OBJECT (widget), aux_info_key_id);
3547   if (aux_info)
3548     gtk_widget_aux_info_destroy (aux_info);
3549
3550   events = gtk_object_get_data_by_id (GTK_OBJECT (widget), event_key_id);
3551   if (events)
3552     g_free (events);
3553
3554   mode = gtk_object_get_data_by_id (GTK_OBJECT (widget), extension_event_key_id);
3555   if (mode)
3556     g_free (mode);
3557
3558   parent_class->finalize (object);
3559 }
3560
3561 /*****************************************
3562  * gtk_widget_real_show:
3563  *
3564  *   arguments:
3565  *
3566  *   results:
3567  *****************************************/
3568
3569 static void
3570 gtk_widget_real_show (GtkWidget *widget)
3571 {
3572   g_return_if_fail (widget != NULL);
3573   g_return_if_fail (GTK_IS_WIDGET (widget));
3574
3575   if (!GTK_WIDGET_VISIBLE (widget))
3576     {
3577       GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
3578
3579       if (widget->parent)
3580         {
3581           gtk_widget_queue_resize (widget->parent);
3582
3583           if (GTK_WIDGET_MAPPED (widget->parent))
3584             gtk_widget_map (widget);
3585         }
3586     }
3587 }
3588
3589 /*****************************************
3590  * gtk_widget_real_hide:
3591  *
3592  *   arguments:
3593  *
3594  *   results:
3595  *****************************************/
3596
3597 static void
3598 gtk_widget_real_hide (GtkWidget *widget)
3599 {
3600   g_return_if_fail (widget != NULL);
3601   g_return_if_fail (GTK_IS_WIDGET (widget));
3602
3603   if (GTK_WIDGET_VISIBLE (widget))
3604     {
3605       GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
3606
3607       if (GTK_WIDGET_MAPPED (widget))
3608         gtk_widget_unmap (widget);
3609
3610       if (widget->parent)
3611         gtk_widget_queue_resize (widget);
3612     }
3613 }
3614
3615 /*****************************************
3616  * gtk_widget_real_map:
3617  *
3618  *   arguments:
3619  *
3620  *   results:
3621  *****************************************/
3622
3623 static void
3624 gtk_widget_real_map (GtkWidget *widget)
3625 {
3626   g_return_if_fail (widget != NULL);
3627   g_return_if_fail (GTK_IS_WIDGET (widget));
3628
3629   if (GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_MAPPED (widget))
3630     {
3631       GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
3632
3633       if (!GTK_WIDGET_NO_WINDOW (widget))
3634         gdk_window_show (widget->window);
3635       else
3636         gtk_widget_queue_draw (widget);
3637     }
3638 }
3639
3640 /*****************************************
3641  * gtk_widget_real_unmap:
3642  *
3643  *   arguments:
3644  *
3645  *   results:
3646  *****************************************/
3647
3648 static void
3649 gtk_widget_real_unmap (GtkWidget *widget)
3650 {
3651   g_return_if_fail (widget != NULL);
3652   g_return_if_fail (GTK_IS_WIDGET (widget));
3653
3654   if (GTK_WIDGET_MAPPED (widget))
3655     {
3656       GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
3657
3658       if (GTK_WIDGET_NO_WINDOW (widget))
3659         gdk_window_clear_area (widget->window,
3660                                widget->allocation.x,
3661                                widget->allocation.y,
3662                                widget->allocation.width,
3663                                widget->allocation.height);
3664       else
3665         gdk_window_hide (widget->window);
3666     }
3667 }
3668
3669 /*****************************************
3670  * gtk_widget_real_realize:
3671  *
3672  *   arguments:
3673  *
3674  *   results:
3675  *****************************************/
3676
3677 static void
3678 gtk_widget_real_realize (GtkWidget *widget)
3679 {
3680   g_return_if_fail (widget != NULL);
3681   g_return_if_fail (GTK_IS_WIDGET (widget));
3682   g_return_if_fail (GTK_WIDGET_NO_WINDOW (widget));
3683
3684   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
3685   if (widget->parent)
3686     {
3687       widget->window = gtk_widget_get_parent_window (widget);
3688       gdk_window_ref (widget->window);
3689     }
3690   widget->style = gtk_style_attach (widget->style, widget->window);
3691 }
3692
3693 /*****************************************
3694  * gtk_widget_real_unrealize:
3695  *
3696  *   arguments:
3697  *
3698  *   results:
3699  *****************************************/
3700
3701 static void
3702 gtk_widget_real_unrealize (GtkWidget *widget)
3703 {
3704   g_return_if_fail (widget != NULL);
3705   g_return_if_fail (GTK_IS_WIDGET (widget));
3706
3707   if (GTK_WIDGET_NO_WINDOW (widget) && GTK_WIDGET_MAPPED (widget))
3708     gtk_widget_real_unmap (widget);
3709
3710   GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
3711
3712   /* printf ("unrealizing %s\n", gtk_type_name (GTK_OBJECT(widget)->klass->type));
3713    */
3714
3715   gtk_style_detach (widget->style);
3716   if (!GTK_WIDGET_NO_WINDOW (widget))
3717     {
3718       gdk_window_set_user_data (widget->window, NULL);
3719       gdk_window_destroy (widget->window);
3720     }
3721   else
3722     {
3723       gdk_window_unref (widget->window);
3724     }
3725
3726   /* Unrealize afterwards to improve visual effect */
3727
3728   if (GTK_IS_CONTAINER (widget))
3729     gtk_container_foreach (GTK_CONTAINER (widget),
3730                            (GtkCallback)gtk_widget_unrealize,
3731                            NULL);
3732
3733   widget->window = NULL;
3734 }
3735
3736 /*****************************************
3737  * gtk_widget_real_draw:
3738  *
3739  *   arguments:
3740  *
3741  *   results:
3742  *****************************************/
3743
3744 static void
3745 gtk_widget_real_draw (GtkWidget    *widget,
3746                       GdkRectangle *area)
3747 {
3748   GdkEventExpose event;
3749
3750   g_return_if_fail (widget != NULL);
3751   g_return_if_fail (GTK_IS_WIDGET (widget));
3752   g_return_if_fail (area != NULL);
3753
3754   if (GTK_WIDGET_DRAWABLE (widget))
3755     {
3756       event.type = GDK_EXPOSE;
3757       event.send_event = TRUE;
3758       event.window = widget->window;
3759       event.area = *area;
3760       event.count = 0;
3761
3762       gdk_window_ref (event.window);
3763       gtk_widget_event (widget, (GdkEvent*) &event);
3764       gdk_window_unref (event.window);
3765     }
3766 }
3767
3768 /*****************************************
3769  * gtk_widget_real_queue_draw:
3770  *
3771  *   arguments:
3772  *
3773  *   results:
3774  *****************************************/
3775
3776 static gint
3777 gtk_widget_real_queue_draw (GtkWidget *widget)
3778 {
3779   g_return_val_if_fail (widget != NULL, FALSE);
3780   g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
3781
3782   GTK_PRIVATE_UNSET_FLAG (widget, GTK_REDRAW_PENDING);
3783   gtk_widget_draw (widget, NULL);
3784
3785   return FALSE;
3786 }
3787
3788 /*****************************************
3789  * gtk_widget_real_size_allocate:
3790  *
3791  *   arguments:
3792  *
3793  *   results:
3794  *****************************************/
3795
3796 static void
3797 gtk_widget_real_size_allocate (GtkWidget     *widget,
3798                                GtkAllocation *allocation)
3799 {
3800   g_return_if_fail (widget != NULL);
3801   g_return_if_fail (GTK_IS_WIDGET (widget));
3802
3803   if (GTK_WIDGET_NO_WINDOW (widget) &&
3804       GTK_WIDGET_MAPPED (widget) &&
3805       ((widget->allocation.x != allocation->x) ||
3806        (widget->allocation.y != allocation->y) ||
3807        (widget->allocation.width != allocation->width) ||
3808        (widget->allocation.height != allocation->height)) &&
3809       (widget->allocation.width != 0) &&
3810       (widget->allocation.height != 0))
3811     gdk_window_clear_area (widget->window,
3812                            widget->allocation.x,
3813                            widget->allocation.y,
3814                            widget->allocation.width,
3815                            widget->allocation.height);
3816
3817   widget->allocation = *allocation;
3818
3819   if (GTK_WIDGET_REALIZED (widget) &&
3820       !GTK_WIDGET_NO_WINDOW (widget))
3821     gdk_window_move_resize (widget->window,
3822                             allocation->x, allocation->y,
3823                             allocation->width, allocation->height);
3824 }
3825
3826 /*****************************************
3827  * gtk_widget_peek_colormap:
3828  *
3829  *   arguments:
3830  *
3831  *   results:
3832  *****************************************/
3833
3834 static GdkColormap*
3835 gtk_widget_peek_colormap (void)
3836 {
3837   if (colormap_stack)
3838     return (GdkColormap*) colormap_stack->data;
3839   return gtk_widget_get_default_colormap ();
3840 }
3841
3842 /*****************************************
3843  * gtk_widget_peek_visual:
3844  *
3845  *   arguments:
3846  *
3847  *   results:
3848  *****************************************/
3849
3850 static GdkVisual*
3851 gtk_widget_peek_visual (void)
3852 {
3853   if (visual_stack)
3854     return (GdkVisual*) visual_stack->data;
3855   return gtk_widget_get_default_visual ();
3856 }
3857
3858 /*************************************************************
3859  * gtk_widget_propagate_state:
3860  *     Propagate a change in the widgets state down the tree
3861  *
3862  *   arguments:
3863  *     widget
3864  *     GtkStateData: state
3865  *                   parent_sensitive
3866  *
3867  *   results:
3868  *************************************************************/
3869
3870 static void
3871 gtk_widget_propagate_state (GtkWidget           *widget,
3872                             GtkStateData        *data)
3873 {
3874   guint8 old_state;
3875
3876   /* don't call this function with state==GTK_STATE_INSENSITIVE,
3877    * parent_sensitive==TRUE on a sensitive widget
3878    */
3879
3880   old_state = GTK_WIDGET_STATE (widget);
3881
3882   if (data->parent_sensitive)
3883     {
3884       GTK_WIDGET_SET_FLAGS (widget, GTK_PARENT_SENSITIVE);
3885
3886       if (GTK_WIDGET_IS_SENSITIVE (widget))
3887         {
3888           if (data->state_restauration)
3889             GTK_WIDGET_STATE (widget) = GTK_WIDGET_SAVED_STATE (widget);
3890           else
3891             GTK_WIDGET_STATE (widget) = data->state;
3892         }
3893       else
3894         {
3895           GTK_WIDGET_STATE (widget) = GTK_STATE_INSENSITIVE;
3896           if (!data->state_restauration &&
3897               data->state != GTK_STATE_INSENSITIVE)
3898             GTK_WIDGET_SAVED_STATE (widget) = data->state;
3899         }
3900     }
3901   else
3902     {
3903       GTK_WIDGET_UNSET_FLAGS (widget, GTK_PARENT_SENSITIVE);
3904       if (!data->state_restauration)
3905         {
3906           if (data->state != GTK_STATE_INSENSITIVE)
3907             GTK_WIDGET_SAVED_STATE (widget) = data->state;
3908         }
3909       else if (GTK_WIDGET_STATE (widget) != GTK_STATE_INSENSITIVE)
3910         GTK_WIDGET_SAVED_STATE (widget) = GTK_WIDGET_STATE (widget);
3911       GTK_WIDGET_STATE (widget) = GTK_STATE_INSENSITIVE;
3912     }
3913
3914   if (GTK_WIDGET_HAS_FOCUS (widget) && !GTK_WIDGET_IS_SENSITIVE (widget))
3915     {
3916       GtkWidget *window;
3917
3918       window = gtk_widget_get_ancestor (widget, gtk_window_get_type ());
3919       if (window)
3920         gtk_window_set_focus (GTK_WINDOW (window), NULL);
3921     }
3922
3923   if (old_state != GTK_WIDGET_STATE (widget))
3924     {
3925       gtk_widget_ref (widget);
3926       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[STATE_CHANGED], old_state);
3927
3928       if (GTK_IS_CONTAINER (widget))
3929         {
3930           data->parent_sensitive = (GTK_WIDGET_IS_SENSITIVE (widget) != FALSE);
3931           data->state = GTK_WIDGET_STATE (widget);
3932           gtk_container_foreach (GTK_CONTAINER (widget),
3933                                  (GtkCallback) gtk_widget_propagate_state,
3934                                  data);
3935         }
3936       gtk_widget_unref (widget);
3937     }
3938 }
3939
3940 /*****************************************
3941  * gtk_widget_draw_children_recurse:
3942  *
3943  *   arguments:
3944  *
3945  *   results:
3946  *****************************************/
3947
3948 static void
3949 gtk_widget_draw_children_recurse (GtkWidget *widget,
3950                                   gpointer   client_data)
3951 {
3952   gtk_widget_draw (widget, NULL);
3953   gtk_widget_draw_children (widget);
3954 }
3955
3956 /*****************************************
3957  * gtk_widget_aux_info_new:
3958  *
3959  *   arguments:
3960  *
3961  *   results:
3962  *****************************************/
3963
3964 static GtkWidgetAuxInfo*
3965 gtk_widget_aux_info_new (void)
3966 {
3967   GtkWidgetAuxInfo *aux_info;
3968
3969   if (!aux_info_mem_chunk)
3970     aux_info_mem_chunk = g_mem_chunk_new ("widget aux info mem chunk",
3971                                           sizeof (GtkWidgetAuxInfo),
3972                                           1024, G_ALLOC_AND_FREE);
3973
3974   aux_info = g_chunk_new (GtkWidgetAuxInfo, aux_info_mem_chunk);
3975
3976   aux_info->x = -1;
3977   aux_info->y = -1;
3978   aux_info->width = 0;
3979   aux_info->height = 0;
3980
3981   return aux_info;
3982 }
3983
3984 /*****************************************
3985  * gtk_widget_aux_info_destroy:
3986  *
3987  *   arguments:
3988  *
3989  *   results:
3990  *****************************************/
3991
3992 static void
3993 gtk_widget_aux_info_destroy (GtkWidgetAuxInfo *aux_info)
3994 {
3995   g_return_if_fail (aux_info != NULL);
3996
3997   g_mem_chunk_free (aux_info_mem_chunk, aux_info);
3998 }
3999
4000 /*****************************************
4001  * gtk_widget_shape_combine_mask:
4002  *   set a shape for this widgets' gdk window, this allows for
4003  *   transparent windows etc., see gdk_window_shape_combine_mask
4004  *   for more information
4005  *
4006  *   arguments:
4007  *
4008  *   results:
4009  *****************************************/
4010 void
4011 gtk_widget_shape_combine_mask (GtkWidget *widget,
4012                                GdkBitmap *shape_mask,
4013                                gint       offset_x,
4014                                gint       offset_y)
4015 {
4016   GtkWidgetShapeInfo* shape_info;
4017
4018   g_return_if_fail (widget != NULL);
4019   /*  set_shape doesn't work on widgets without gdk window */
4020   g_return_if_fail (!GTK_WIDGET_NO_WINDOW (widget));
4021
4022   if (!shape_mask)
4023     {
4024       GTK_PRIVATE_UNSET_FLAG (widget, GTK_HAS_SHAPE_MASK);
4025
4026       if (widget->window)
4027         gdk_window_shape_combine_mask (widget->window, NULL, 0, 0);
4028
4029       shape_info = gtk_object_get_data (GTK_OBJECT (widget), shape_info_key);
4030       gtk_object_remove_data (GTK_OBJECT (widget), shape_info_key);
4031       g_free (shape_info);
4032     }
4033   else
4034     {
4035       GTK_PRIVATE_SET_FLAG (widget, GTK_HAS_SHAPE_MASK);
4036
4037       shape_info = gtk_object_get_data (GTK_OBJECT (widget), shape_info_key);
4038       if (!shape_info)
4039         {
4040           shape_info = g_new (GtkWidgetShapeInfo, 1);
4041           gtk_object_set_data (GTK_OBJECT (widget), shape_info_key, shape_info);
4042         }
4043       shape_info->shape_mask = shape_mask;
4044       shape_info->offset_x = offset_x;
4045       shape_info->offset_y = offset_y;
4046
4047       /* set shape if widget has a gdk window allready.
4048        * otherwise the shape is scheduled to be set by gtk_widget_realize.
4049        */
4050       if (widget->window)
4051         gdk_window_shape_combine_mask (widget->window, shape_mask,
4052                                        offset_x, offset_y);
4053     }
4054 }
4055
4056 /*****************************************
4057  * gtk_widget_dnd_drag_add:
4058  *   when you get a DRAG_ENTER event, you can use this
4059  *   to tell Gtk ofother widgets that are to be dragged as well
4060  *
4061  *   arguments:
4062  *
4063  *   results:
4064  *****************************************/
4065 void
4066 gtk_widget_dnd_drag_add (GtkWidget *widget)
4067 {
4068 }
4069
4070 /*****************************************
4071  * gtk_widget_dnd_drag_set:
4072  *   these two functions enable drag and/or drop on a
4073  *   widget and also let Gtk know what data types will be accepted
4074  *   use MIME type naming,plus tacking "URL:" on the front for link
4075  *   dragging
4076  *
4077  *
4078  *   arguments:
4079  *
4080  *   results:
4081  *****************************************/
4082 void
4083 gtk_widget_dnd_drag_set (GtkWidget   *widget,
4084                          guint8       drag_enable,
4085                          gchar      **type_accept_list,
4086                          guint        numtypes)
4087 {
4088   g_return_if_fail(widget != NULL);
4089
4090   if (!widget->window)
4091     gtk_widget_realize (widget);
4092
4093   g_return_if_fail (widget->window != NULL);
4094   gdk_window_dnd_drag_set (widget->window,
4095                            drag_enable,
4096                            type_accept_list,
4097                            numtypes);
4098 }
4099
4100 /*****************************************
4101  * gtk_widget_dnd_drop_set:
4102  *
4103  *   arguments:
4104  *
4105  *   results:
4106  *****************************************/
4107 void
4108 gtk_widget_dnd_drop_set (GtkWidget   *widget,
4109                          guint8       drop_enable,
4110                          gchar      **type_accept_list,
4111                          guint        numtypes,
4112                          guint8       is_destructive_operation)
4113 {
4114   g_return_if_fail(widget != NULL);
4115
4116   if (!widget->window)
4117     gtk_widget_realize (widget);
4118
4119   g_return_if_fail (widget->window != NULL);
4120   gdk_window_dnd_drop_set (widget->window,
4121                            drop_enable,
4122                            type_accept_list,
4123                            numtypes,
4124                            is_destructive_operation);
4125 }
4126
4127 /*****************************************
4128  * gtk_widget_dnd_data_set:
4129  *
4130  *   arguments:
4131  *
4132  *   results:
4133  *****************************************/
4134 void
4135 gtk_widget_dnd_data_set (GtkWidget   *widget,
4136                          GdkEvent    *event,
4137                          gpointer     data,
4138                          gulong       data_numbytes)
4139 {
4140   g_return_if_fail (widget != NULL);
4141   g_return_if_fail (widget->window != NULL);
4142
4143   gdk_window_dnd_data_set (widget->window, event, data, data_numbytes);
4144 }
4145
4146 void
4147 gtk_widget_ref (GtkWidget *widget)
4148 {
4149   g_return_if_fail (widget != NULL);
4150   g_return_if_fail (GTK_IS_WIDGET (widget));
4151
4152   gtk_object_ref ((GtkObject*) widget);
4153 }
4154
4155 void
4156 gtk_widget_unref (GtkWidget *widget)
4157 {
4158   g_return_if_fail (widget != NULL);
4159   g_return_if_fail (GTK_IS_WIDGET (widget));
4160
4161   gtk_object_unref ((GtkObject*) widget);
4162 }