Pileus Git - ~andy/gtk/blob - gtk/gtkwindow.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 Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18 #include <string.h>
  19 #include <limits.h>
  20 #include "gdk/gdk.h"
  21 #include "gdk/gdkkeysyms.h"
  22 #include "gdk/gdkx.h"
  23 #include "gtkprivate.h"
  24 #include "gtksignal.h"
  25 #include "gtkwindow.h"
  26
  27 enum {
  28   MOVE_RESIZE,
  29   SET_FOCUS,
  30   LAST_SIGNAL
  31 };
  32 enum {
  33   ARG_0,
  34   ARG_TYPE,
  35   ARG_TITLE,
  36   ARG_AUTO_SHRINK,
  37   ARG_ALLOW_SHRINK,
  38   ARG_ALLOW_GROW,
  39   ARG_WIN_POS
  40 };
  41
  42 typedef gint (*GtkWindowSignal1) (GtkObject *object,
  43                                   gpointer   arg1,
  44                                   gpointer   arg2,
  45                                   gint       arg3,
  46                                   gint       arg4,
  47                                   gpointer   data);
  48 typedef void (*GtkWindowSignal2) (GtkObject *object,
  49                                   gpointer   arg1,
  50                                   gpointer   data);
  51
  52 static void gtk_window_marshal_signal_1 (GtkObject      *object,
  53                                          GtkSignalFunc   func,
  54                                          gpointer        func_data,
  55                                          GtkArg         *args);
  56 static void gtk_window_marshal_signal_2 (GtkObject      *object,
  57                                          GtkSignalFunc   func,
  58                                          gpointer        func_data,
  59                                          GtkArg         *args);
  60 static void gtk_window_class_init         (GtkWindowClass    *klass);
  61 static void gtk_window_init               (GtkWindow         *window);
  62 static void gtk_window_set_arg            (GtkWindow         *window,
  63                                            GtkArg            *arg,
  64                                            guint              arg_id);
  65 static void gtk_window_get_arg            (GtkWindow         *window,
  66                                            GtkArg            *arg,
  67                                            guint              arg_id);
  68 static void gtk_window_destroy            (GtkObject         *object);
  69 static void gtk_window_finalize           (GtkObject         *object);
  70 static void gtk_window_show               (GtkWidget         *widget);
  71 static void gtk_window_hide               (GtkWidget         *widget);
  72 static void gtk_window_map                (GtkWidget         *widget);
  73 static void gtk_window_unmap              (GtkWidget         *widget);
  74 static void gtk_window_realize            (GtkWidget         *widget);
  75 static void gtk_window_size_request       (GtkWidget         *widget,
  76                                            GtkRequisition    *requisition);
  77 static void gtk_window_size_allocate      (GtkWidget         *widget,
  78                                            GtkAllocation     *allocation);
  79 static gint gtk_window_expose_event       (GtkWidget         *widget,
  80                                            GdkEventExpose    *event);
  81 static gint gtk_window_configure_event    (GtkWidget         *widget,
  82                                            GdkEventConfigure *event);
  83 static gint gtk_window_key_press_event    (GtkWidget         *widget,
  84                                            GdkEventKey       *event);
  85 static gint gtk_window_key_release_event  (GtkWidget         *widget,
  86                                            GdkEventKey       *event);
  87 static gint gtk_window_enter_notify_event (GtkWidget         *widget,
  88                                            GdkEventCrossing  *event);
  89 static gint gtk_window_leave_notify_event (GtkWidget         *widget,
  90                                            GdkEventCrossing  *event);
  91 static gint gtk_window_focus_in_event     (GtkWidget         *widget,
  92                                            GdkEventFocus     *event);
  93 static gint gtk_window_focus_out_event    (GtkWidget         *widget,
  94                                            GdkEventFocus     *event);
  95 static gint gtk_window_client_event       (GtkWidget         *widget,
  96                                            GdkEventClient    *event);
  97 static gint gtk_window_need_resize        (GtkContainer      *container);
  98 static gint gtk_real_window_move_resize   (GtkWindow         *window,
  99                                            gint              *x,
 100                                            gint              *y,
 101                                            gint               width,
 102                                            gint               height);
 103 static void gtk_real_window_set_focus     (GtkWindow         *window,
 104                                            GtkWidget         *focus);
 105 static gint gtk_window_move_resize        (GtkWidget         *widget);
 106 static void gtk_window_set_hints          (GtkWidget         *widget,
 107                                            GtkRequisition    *requisition);
 108 static gint gtk_window_check_accelerator  (GtkWindow         *window,
 109                                            gint               key,
 110                                            guint              mods);
 111
 112
 113 static GtkBinClass *parent_class = NULL;
 114 static gint window_signals[LAST_SIGNAL] = { 0 };
 115
 116
 117 guint
 118 gtk_window_get_type ()
 119 {
 120   static guint window_type = 0;
 121
 122   if (!window_type)
 123     {
 124       GtkTypeInfo window_info =
 125       {
 126         "GtkWindow",
 127         sizeof (GtkWindow),
 128         sizeof (GtkWindowClass),
 129         (GtkClassInitFunc) gtk_window_class_init,
 130         (GtkObjectInitFunc) gtk_window_init,
 131         (GtkArgSetFunc) gtk_window_set_arg,
 132         (GtkArgGetFunc) gtk_window_get_arg,
 133       };
 134
 135       window_type = gtk_type_unique (gtk_bin_get_type (), &window_info);
 136     }
 137
 138   return window_type;
 139 }
 140
 141 static void
 142 gtk_window_class_init (GtkWindowClass *klass)
 143 {
 144   GtkObjectClass *object_class;
 145   GtkWidgetClass *widget_class;
 146   GtkContainerClass *container_class;
 147
 148   object_class = (GtkObjectClass*) klass;
 149   widget_class = (GtkWidgetClass*) klass;
 150   container_class = (GtkContainerClass*) klass;
 151
 152   parent_class = gtk_type_class (gtk_bin_get_type ());
 153
 154   gtk_object_add_arg_type ("GtkWindow::type", GTK_TYPE_WINDOW_TYPE, ARG_TYPE);
 155   gtk_object_add_arg_type ("GtkWindow::title", GTK_TYPE_STRING, ARG_TITLE);
 156   gtk_object_add_arg_type ("GtkWindow::auto_shrink", GTK_TYPE_BOOL, ARG_AUTO_SHRINK);
 157   gtk_object_add_arg_type ("GtkWindow::allow_shrink", GTK_TYPE_BOOL, ARG_ALLOW_SHRINK);
 158   gtk_object_add_arg_type ("GtkWindow::allow_grow", GTK_TYPE_BOOL, ARG_ALLOW_GROW);
 159   gtk_object_add_arg_type ("GtkWindow::window_position", GTK_TYPE_ENUM, ARG_WIN_POS);
 160
 161   window_signals[MOVE_RESIZE] =
 162     gtk_signal_new ("move_resize",
 163                     GTK_RUN_LAST,
 164                     object_class->type,
 165                     GTK_SIGNAL_OFFSET (GtkWindowClass, move_resize),
 166                     gtk_window_marshal_signal_1,
 167                     GTK_TYPE_BOOL, 4,
 168                     GTK_TYPE_POINTER, GTK_TYPE_POINTER,
 169                     GTK_TYPE_INT, GTK_TYPE_INT);
 170
 171   window_signals[SET_FOCUS] =
 172     gtk_signal_new ("set_focus",
 173                     GTK_RUN_LAST,
 174                     object_class->type,
 175                     GTK_SIGNAL_OFFSET (GtkWindowClass, set_focus),
 176                     gtk_window_marshal_signal_2,
 177                     GTK_TYPE_NONE, 1,
 178                     GTK_TYPE_POINTER);
 179
 180   gtk_object_class_add_signals (object_class, window_signals, LAST_SIGNAL);
 181
 182   object_class->destroy = gtk_window_destroy;
 183   object_class->finalize = gtk_window_finalize;
 184
 185   widget_class->show = gtk_window_show;
 186   widget_class->hide = gtk_window_hide;
 187   widget_class->map = gtk_window_map;
 188   widget_class->unmap = gtk_window_unmap;
 189   widget_class->realize = gtk_window_realize;
 190   widget_class->size_request = gtk_window_size_request;
 191   widget_class->size_allocate = gtk_window_size_allocate;
 192   widget_class->expose_event = gtk_window_expose_event;
 193   widget_class->configure_event = gtk_window_configure_event;
 194   widget_class->key_press_event = gtk_window_key_press_event;
 195   widget_class->key_release_event = gtk_window_key_release_event;
 196   widget_class->enter_notify_event = gtk_window_enter_notify_event;
 197   widget_class->leave_notify_event = gtk_window_leave_notify_event;
 198   widget_class->focus_in_event = gtk_window_focus_in_event;
 199   widget_class->focus_out_event = gtk_window_focus_out_event;
 200   widget_class->client_event = gtk_window_client_event;
 201
 202   container_class->need_resize = gtk_window_need_resize;
 203
 204   klass->move_resize = gtk_real_window_move_resize;
 205   klass->set_focus = gtk_real_window_set_focus;
 206 }
 207
 208 static void
 209 gtk_window_init (GtkWindow *window)
 210 {
 211   GTK_WIDGET_UNSET_FLAGS (window, GTK_NO_WINDOW);
 212   GTK_WIDGET_SET_FLAGS (window, GTK_TOPLEVEL);
 213
 214   window->title = NULL;
 215   window->wmclass_name = NULL;
 216   window->wmclass_class = NULL;
 217   window->type = GTK_WINDOW_TOPLEVEL;
 218   window->accelerator_tables = NULL;
 219   window->focus_widget = NULL;
 220   window->default_widget = NULL;
 221   window->resize_count = 0;
 222   window->need_resize = FALSE;
 223   window->allow_shrink = FALSE;
 224   window->allow_grow = TRUE;
 225   window->auto_shrink = FALSE;
 226   window->handling_resize = FALSE;
 227   window->position = GTK_WIN_POS_NONE;
 228   window->use_uposition = TRUE;
 229
 230   gtk_container_register_toplevel (GTK_CONTAINER (window));
 231 }
 232
 233 static void
 234 gtk_window_set_arg (GtkWindow  *window,
 235                     GtkArg     *arg,
 236                     guint       arg_id)
 237 {
 238   switch (arg_id)
 239     {
 240     case ARG_TYPE:
 241       window->type = GTK_VALUE_ENUM (*arg);
 242       break;
 243     case ARG_TITLE:
 244       gtk_window_set_title (window, GTK_VALUE_STRING (*arg));
 245       break;
 246     case ARG_AUTO_SHRINK:
 247       window->auto_shrink = (GTK_VALUE_BOOL (*arg) != FALSE);
 248       break;
 249     case ARG_ALLOW_SHRINK:
 250       window->allow_shrink = (GTK_VALUE_BOOL (*arg) != FALSE);
 251       break;
 252     case ARG_ALLOW_GROW:
 253       window->allow_grow = (GTK_VALUE_BOOL (*arg) != FALSE);
 254       break;
 255     case ARG_WIN_POS:
 256       gtk_window_position (window, GTK_VALUE_ENUM (*arg));
 257       break;
 258     default:
 259       arg->type = GTK_TYPE_INVALID;
 260       break;
 261     }
 262 }
 263
 264 static void
 265 gtk_window_get_arg (GtkWindow  *window,
 266                     GtkArg     *arg,
 267                     guint       arg_id)
 268 {
 269   switch (arg_id)
 270     {
 271     case ARG_TYPE:
 272       GTK_VALUE_ENUM (*arg) = window->type;
 273       break;
 274     case ARG_TITLE:
 275       GTK_VALUE_STRING (*arg) = g_strdup (window->title);
 276       break;
 277     case ARG_AUTO_SHRINK:
 278       GTK_VALUE_BOOL (*arg) = window->auto_shrink;
 279       break;
 280     case ARG_ALLOW_SHRINK:
 281       GTK_VALUE_BOOL (*arg) = window->allow_shrink;
 282       break;
 283     case ARG_ALLOW_GROW:
 284       GTK_VALUE_BOOL (*arg) = window->allow_grow;
 285       break;
 286     case ARG_WIN_POS:
 287       GTK_VALUE_ENUM (*arg) = window->position;
 288       break;
 289     default:
 290       arg->type = GTK_TYPE_INVALID;
 291       break;
 292     }
 293 }
 294
 295 GtkWidget*
 296 gtk_window_new (GtkWindowType type)
 297 {
 298   GtkWindow *window;
 299
 300   window = gtk_type_new (gtk_window_get_type ());
 301
 302   window->type = type;
 303
 304   return GTK_WIDGET (window);
 305 }
 306
 307 void
 308 gtk_window_set_title (GtkWindow   *window,
 309                       const gchar *title)
 310 {
 311   g_return_if_fail (window != NULL);
 312   g_return_if_fail (GTK_IS_WINDOW (window));
 313
 314   if (window->title)
 315     g_free (window->title);
 316   window->title = g_strdup (title);
 317
 318   if (GTK_WIDGET_REALIZED (window))
 319     gdk_window_set_title (GTK_WIDGET (window)->window, window->title);
 320 }
 321
 322 void
 323 gtk_window_set_wmclass (GtkWindow *window,
 324                         gchar     *wmclass_name,
 325                         gchar     *wmclass_class)
 326 {
 327   g_return_if_fail (window != NULL);
 328   g_return_if_fail (GTK_IS_WINDOW (window));
 329
 330   if (window->wmclass_name)
 331     g_free (window->wmclass_name);
 332   window->wmclass_name = g_strdup (wmclass_name);
 333
 334   if (window->wmclass_class)
 335     g_free (window->wmclass_class);
 336   window->wmclass_class = g_strdup (wmclass_class);
 337
 338   if (GTK_WIDGET_REALIZED (window))
 339     g_warning ("shouldn't set wmclass after window is realized!\n");
 340 }
 341
 342 void
 343 gtk_window_set_focus (GtkWindow *window,
 344                       GtkWidget *focus)
 345 {
 346   gtk_signal_emit (GTK_OBJECT (window), window_signals[SET_FOCUS], focus);
 347 }
 348
 349 void
 350 gtk_window_set_default (GtkWindow *window,
 351                         GtkWidget *defaultw)
 352 {
 353   g_return_if_fail (window != NULL);
 354   g_return_if_fail (GTK_IS_WINDOW (window));
 355   g_return_if_fail (GTK_WIDGET_CAN_DEFAULT (defaultw));
 356
 357   if (window->default_widget != defaultw)
 358     {
 359       if (window->default_widget)
 360         {
 361           GTK_WIDGET_UNSET_FLAGS (window->default_widget, GTK_HAS_DEFAULT);
 362           gtk_widget_draw_default (window->default_widget);
 363         }
 364
 365       window->default_widget = defaultw;
 366
 367       if (window->default_widget)
 368         {
 369           GTK_WIDGET_SET_FLAGS (window->default_widget, GTK_HAS_DEFAULT);
 370           gtk_widget_draw_default (window->default_widget);
 371         }
 372     }
 373 }
 374
 375 void
 376 gtk_window_set_policy (GtkWindow *window,
 377                        gint       allow_shrink,
 378                        gint       allow_grow,
 379                        gint       auto_shrink)
 380 {
 381   g_return_if_fail (window != NULL);
 382   g_return_if_fail (GTK_IS_WINDOW (window));
 383
 384   window->allow_shrink = (allow_shrink != FALSE);
 385   window->allow_grow = (allow_grow != FALSE);
 386   window->auto_shrink = (auto_shrink != FALSE);
 387 }
 388
 389 void
 390 gtk_window_add_accelerator_table (GtkWindow           *window,
 391                                   GtkAcceleratorTable *table)
 392 {
 393   g_return_if_fail (window != NULL);
 394   g_return_if_fail (GTK_IS_WINDOW (window));
 395
 396   gtk_accelerator_table_ref (table);
 397   window->accelerator_tables = g_list_prepend (window->accelerator_tables,
 398                                                table);
 399 }
 400
 401 void
 402 gtk_window_remove_accelerator_table (GtkWindow           *window,
 403                                      GtkAcceleratorTable *table)
 404 {
 405   g_return_if_fail (window != NULL);
 406   g_return_if_fail (GTK_IS_WINDOW (window));
 407
 408   window->accelerator_tables = g_list_remove (window->accelerator_tables,
 409                                               table);
 410   gtk_accelerator_table_unref (table);
 411 }
 412
 413 void
 414 gtk_window_position (GtkWindow         *window,
 415                      GtkWindowPosition  position)
 416 {
 417   g_return_if_fail (window != NULL);
 418   g_return_if_fail (GTK_IS_WINDOW (window));
 419
 420   window->position = position;
 421 }
 422
 423 gint
 424 gtk_window_activate_focus (GtkWindow      *window)
 425 {
 426   g_return_val_if_fail (window != NULL, FALSE);
 427   g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 428
 429   if (window->focus_widget)
 430     {
 431       gtk_widget_activate (window->focus_widget);
 432       return TRUE;
 433     }
 434
 435   return FALSE;
 436 }
 437
 438 gint
 439 gtk_window_activate_default (GtkWindow      *window)
 440 {
 441   g_return_val_if_fail (window != NULL, FALSE);
 442   g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
 443
 444   if (window->default_widget)
 445     {
 446       gtk_widget_activate (window->default_widget);
 447       return TRUE;
 448     }
 449
 450   return FALSE;
 451 }
 452
 453 static void
 454 gtk_window_marshal_signal_1 (GtkObject      *object,
 455                              GtkSignalFunc   func,
 456                              gpointer        func_data,
 457                              GtkArg         *args)
 458 {
 459   GtkWindowSignal1 rfunc;
 460   gint *return_val;
 461
 462   rfunc = (GtkWindowSignal1) func;
 463   return_val = GTK_RETLOC_BOOL (args[4]);
 464
 465   *return_val = (* rfunc) (object,
 466                            GTK_VALUE_POINTER (args[0]),
 467                            GTK_VALUE_POINTER (args[1]),
 468                            GTK_VALUE_INT (args[2]),
 469                            GTK_VALUE_INT (args[3]),
 470                            func_data);
 471 }
 472
 473 static void
 474 gtk_window_marshal_signal_2 (GtkObject      *object,
 475                              GtkSignalFunc   func,
 476                              gpointer        func_data,
 477                              GtkArg         *args)
 478 {
 479   GtkWindowSignal2 rfunc;
 480
 481   rfunc = (GtkWindowSignal2) func;
 482
 483   (* rfunc) (object, GTK_VALUE_POINTER (args[0]), func_data);
 484 }
 485
 486 static void
 487 gtk_window_destroy (GtkObject *object)
 488 {
 489   g_return_if_fail (object != NULL);
 490   g_return_if_fail (GTK_IS_WINDOW (object));
 491
 492   gtk_container_unregister_toplevel (GTK_CONTAINER (object));
 493
 494   if (GTK_OBJECT_CLASS (parent_class)->destroy)
 495     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 496 }
 497
 498 static void
 499 gtk_window_finalize (GtkObject *object)
 500 {
 501   GtkWindow *window;
 502
 503   g_return_if_fail (object != NULL);
 504   g_return_if_fail (GTK_IS_WINDOW (object));
 505
 506   window = GTK_WINDOW (object);
 507   g_free (window->title);
 508
 509   GTK_OBJECT_CLASS(parent_class)->finalize (object);
 510 }
 511
 512 static void
 513 gtk_window_show (GtkWidget *widget)
 514 {
 515   g_return_if_fail (widget != NULL);
 516   g_return_if_fail (GTK_IS_WINDOW (widget));
 517
 518   GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
 519   gtk_container_need_resize (GTK_CONTAINER (widget));
 520   gtk_widget_map (widget);
 521 }
 522
 523 static void
 524 gtk_window_hide (GtkWidget *widget)
 525 {
 526   g_return_if_fail (widget != NULL);
 527   g_return_if_fail (GTK_IS_WINDOW (widget));
 528
 529   GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
 530   gtk_widget_unmap (widget);
 531 }
 532
 533 static void
 534 gtk_window_map (GtkWidget *widget)
 535 {
 536   GtkWindow *window;
 537
 538   g_return_if_fail (widget != NULL);
 539   g_return_if_fail (GTK_IS_WINDOW (widget));
 540
 541   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 542
 543   gtk_window_move_resize (widget);
 544   window = GTK_WINDOW (widget);
 545
 546   if (window->bin.child &&
 547       GTK_WIDGET_VISIBLE (window->bin.child) &&
 548       !GTK_WIDGET_MAPPED (window->bin.child))
 549     gtk_widget_map (window->bin.child);
 550
 551   gtk_window_set_hints (widget, &widget->requisition);
 552   gdk_window_show (widget->window);
 553 }
 554
 555 static void
 556 gtk_window_unmap (GtkWidget *widget)
 557 {
 558   GtkWindow *window;
 559
 560   g_return_if_fail (widget != NULL);
 561   g_return_if_fail (GTK_IS_WINDOW (widget));
 562
 563   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 564   gdk_window_hide (widget->window);
 565
 566   window = GTK_WINDOW (widget);
 567   window->use_uposition = TRUE;
 568 }
 569
 570 static void
 571 gtk_window_realize (GtkWidget *widget)
 572 {
 573   GtkWindow *window;
 574   GdkWindowAttr attributes;
 575   gint attributes_mask;
 576
 577   g_return_if_fail (widget != NULL);
 578   g_return_if_fail (GTK_IS_WINDOW (widget));
 579
 580   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 581   window = GTK_WINDOW (widget);
 582
 583   switch (window->type)
 584     {
 585     case GTK_WINDOW_TOPLEVEL:
 586       attributes.window_type = GDK_WINDOW_TOPLEVEL;
 587       break;
 588     case GTK_WINDOW_DIALOG:
 589       attributes.window_type = GDK_WINDOW_DIALOG;
 590       break;
 591     case GTK_WINDOW_POPUP:
 592       attributes.window_type = GDK_WINDOW_TEMP;
 593       break;
 594     }
 595
 596   attributes.title = window->title;
 597   attributes.wmclass_name = window->wmclass_name;
 598   attributes.wmclass_class = window->wmclass_class;
 599   attributes.width = widget->allocation.width;
 600   attributes.height = widget->allocation.height;
 601   attributes.wclass = GDK_INPUT_OUTPUT;
 602   attributes.visual = gtk_widget_get_visual (widget);
 603   attributes.colormap = gtk_widget_get_colormap (widget);
 604   attributes.event_mask = gtk_widget_get_events (widget);
 605   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 606                             GDK_KEY_PRESS_MASK |
 607                             GDK_ENTER_NOTIFY_MASK |
 608                             GDK_LEAVE_NOTIFY_MASK |
 609                             GDK_FOCUS_CHANGE_MASK |
 610                             GDK_STRUCTURE_MASK);
 611
 612   attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
 613   attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
 614   attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
 615
 616   widget->window = gdk_window_new (NULL, &attributes, attributes_mask);
 617   gdk_window_set_user_data (widget->window, window);
 618
 619   widget->style = gtk_style_attach (widget->style, widget->window);
 620   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 621 }
 622
 623 static void
 624 gtk_window_size_request (GtkWidget      *widget,
 625                          GtkRequisition *requisition)
 626 {
 627   GtkWindow *window;
 628
 629   g_return_if_fail (widget != NULL);
 630   g_return_if_fail (GTK_IS_WINDOW (widget));
 631   g_return_if_fail (requisition != NULL);
 632
 633   window = GTK_WINDOW (widget);
 634
 635   if (window->bin.child)
 636     {
 637       requisition->width = GTK_CONTAINER (window)->border_width * 2;
 638       requisition->height = GTK_CONTAINER (window)->border_width * 2;
 639
 640       gtk_widget_size_request (window->bin.child, &window->bin.child->requisition);
 641
 642       requisition->width += window->bin.child->requisition.width;
 643       requisition->height += window->bin.child->requisition.height;
 644     }
 645   else
 646     {
 647       if (!GTK_WIDGET_VISIBLE (window))
 648         window->need_resize = TRUE;
 649     }
 650 }
 651
 652 static void
 653 gtk_window_size_allocate (GtkWidget     *widget,
 654                           GtkAllocation *allocation)
 655 {
 656   GtkWindow *window;
 657   GtkAllocation child_allocation;
 658
 659   g_return_if_fail (widget != NULL);
 660   g_return_if_fail (GTK_IS_WINDOW (widget));
 661   g_return_if_fail (allocation != NULL);
 662
 663   window = GTK_WINDOW (widget);
 664   widget->allocation = *allocation;
 665
 666   if (window->bin.child && GTK_WIDGET_VISIBLE (window->bin.child))
 667     {
 668       child_allocation.x = GTK_CONTAINER (window)->border_width;
 669       child_allocation.y = GTK_CONTAINER (window)->border_width;
 670       child_allocation.width = allocation->width - child_allocation.x * 2;
 671       child_allocation.height = allocation->height - child_allocation.y * 2;
 672
 673       gtk_widget_size_allocate (window->bin.child, &child_allocation);
 674     }
 675 }
 676
 677 static gint
 678 gtk_window_expose_event (GtkWidget      *widget,
 679                          GdkEventExpose *event)
 680 {
 681   g_return_val_if_fail (widget != NULL, FALSE);
 682   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 683   g_return_val_if_fail (event != NULL, FALSE);
 684
 685   if (GTK_WIDGET_DRAWABLE (widget))
 686     if (GTK_WIDGET_CLASS (parent_class)->expose_event)
 687       return (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 688
 689   return FALSE;
 690 }
 691
 692 static gint
 693 gtk_window_configure_event (GtkWidget         *widget,
 694                             GdkEventConfigure *event)
 695 {
 696   GtkWindow *window;
 697   GtkAllocation allocation;
 698
 699   g_return_val_if_fail (widget != NULL, FALSE);
 700   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 701   g_return_val_if_fail (event != NULL, FALSE);
 702
 703   window = GTK_WINDOW (widget);
 704   window->handling_resize = TRUE;
 705
 706   allocation.x = 0;
 707   allocation.y = 0;
 708   allocation.width = event->width;
 709   allocation.height = event->height;
 710
 711   gtk_widget_size_allocate (widget, &allocation);
 712
 713   if (window->bin.child &&
 714       GTK_WIDGET_VISIBLE (window->bin.child) &&
 715       !GTK_WIDGET_MAPPED (window->bin.child))
 716     gtk_widget_map (window->bin.child);
 717
 718   window->resize_count -= 1;
 719   if (window->resize_count == 0)
 720     {
 721       if ((event->width != widget->requisition.width) ||
 722           (event->height != widget->requisition.height))
 723         {
 724           window->resize_count += 1;
 725           gdk_window_resize (widget->window,
 726                              widget->requisition.width,
 727                              widget->requisition.height);
 728         }
 729     }
 730   else if (window->resize_count < 0)
 731     {
 732       window->resize_count = 0;
 733     }
 734
 735   window->handling_resize = FALSE;
 736
 737   return FALSE;
 738 }
 739
 740 static gint
 741 gtk_window_key_press_event (GtkWidget   *widget,
 742                             GdkEventKey *event)
 743 {
 744   GtkWindow *window;
 745   GtkDirectionType direction = 0;
 746   gint return_val;
 747
 748   g_return_val_if_fail (widget != NULL, FALSE);
 749   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 750   g_return_val_if_fail (event != NULL, FALSE);
 751
 752   window = GTK_WINDOW (widget);
 753
 754   return_val = FALSE;
 755   if (window->focus_widget)
 756     return_val = gtk_widget_event (window->focus_widget, (GdkEvent*) event);
 757
 758   if (!return_val && gtk_window_check_accelerator (window, event->keyval, event->state))
 759     return_val = TRUE;
 760
 761   if (!return_val)
 762     {
 763       switch (event->keyval)
 764         {
 765         case GDK_space:
 766           if (window->focus_widget)
 767             {
 768               gtk_widget_activate (window->focus_widget);
 769               return_val = TRUE;
 770             }
 771           break;
 772         case GDK_Return:
 773         case GDK_KP_Enter:
 774           if (window->default_widget)
 775             {
 776               gtk_widget_activate (window->default_widget);
 777               return_val = TRUE;
 778             }
 779           else if (window->focus_widget)
 780             {
 781               gtk_widget_activate (window->focus_widget);
 782               return_val = TRUE;
 783             }
 784           break;
 785         case GDK_Up:
 786         case GDK_Down:
 787         case GDK_Left:
 788         case GDK_Right:
 789         case GDK_Tab:
 790           switch (event->keyval)
 791             {
 792             case GDK_Up:
 793               direction = GTK_DIR_UP;
 794               break;
 795             case GDK_Down:
 796               direction = GTK_DIR_DOWN;
 797               break;
 798             case GDK_Left:
 799               direction = GTK_DIR_LEFT;
 800               break;
 801             case GDK_Right:
 802               direction = GTK_DIR_RIGHT;
 803               break;
 804             case GDK_Tab:
 805               if (event->state & GDK_SHIFT_MASK)
 806                 direction = GTK_DIR_TAB_BACKWARD;
 807               else
 808                 direction = GTK_DIR_TAB_FORWARD;
 809               break;
 810             default :
 811               direction = GTK_DIR_UP; /* never reached, but makes compiler happy */
 812             }
 813
 814           gtk_container_focus (GTK_CONTAINER (widget), direction);
 815
 816           if (!GTK_CONTAINER (window)->focus_child)
 817             gtk_window_set_focus (GTK_WINDOW (widget), NULL);
 818           else
 819             return_val = TRUE;
 820           break;
 821         }
 822     }
 823
 824   return return_val;
 825 }
 826
 827 static gint
 828 gtk_window_key_release_event (GtkWidget   *widget,
 829                               GdkEventKey *event)
 830 {
 831   GtkWindow *window;
 832   gint return_val;
 833
 834   g_return_val_if_fail (widget != NULL, FALSE);
 835   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 836   g_return_val_if_fail (event != NULL, FALSE);
 837
 838   window = GTK_WINDOW (widget);
 839   return_val = FALSE;
 840   if (window->focus_widget)
 841     return_val = gtk_widget_event (window->focus_widget, (GdkEvent*) event);
 842
 843   return return_val;
 844 }
 845
 846 static gint
 847 gtk_window_enter_notify_event (GtkWidget        *widget,
 848                                GdkEventCrossing *event)
 849 {
 850   g_return_val_if_fail (widget != NULL, FALSE);
 851   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 852   g_return_val_if_fail (event != NULL, FALSE);
 853
 854   return FALSE;
 855 }
 856
 857 static gint
 858 gtk_window_leave_notify_event (GtkWidget        *widget,
 859                                GdkEventCrossing *event)
 860 {
 861   g_return_val_if_fail (widget != NULL, FALSE);
 862   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 863   g_return_val_if_fail (event != NULL, FALSE);
 864
 865   return FALSE;
 866 }
 867
 868 static gint
 869 gtk_window_focus_in_event (GtkWidget     *widget,
 870                            GdkEventFocus *event)
 871 {
 872   GtkWindow *window;
 873   GdkEventFocus fevent;
 874
 875   g_return_val_if_fail (widget != NULL, FALSE);
 876   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 877   g_return_val_if_fail (event != NULL, FALSE);
 878
 879   /* It appears spurious focus in events can occur when
 880    *  the window is hidden. So we'll just check to see if
 881    *  the window is visible before actually handling the
 882    *  event
 883    */
 884   if (GTK_WIDGET_VISIBLE (widget))
 885     {
 886       window = GTK_WINDOW (widget);
 887       if (window->focus_widget && !GTK_WIDGET_HAS_FOCUS (window->focus_widget))
 888         {
 889           fevent.type = GDK_FOCUS_CHANGE;
 890           fevent.window = window->focus_widget->window;
 891           fevent.in = TRUE;
 892
 893           gtk_widget_event (window->focus_widget, (GdkEvent*) &fevent);
 894         }
 895     }
 896
 897   return FALSE;
 898 }
 899
 900 static gint
 901 gtk_window_focus_out_event (GtkWidget     *widget,
 902                             GdkEventFocus *event)
 903 {
 904   GtkWindow *window;
 905   GdkEventFocus fevent;
 906
 907   g_return_val_if_fail (widget != NULL, FALSE);
 908   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 909   g_return_val_if_fail (event != NULL, FALSE);
 910
 911   window = GTK_WINDOW (widget);
 912   if (window->focus_widget && GTK_WIDGET_HAS_FOCUS (window->focus_widget))
 913     {
 914       fevent.type = GDK_FOCUS_CHANGE;
 915       fevent.window = window->focus_widget->window;
 916       fevent.in = FALSE;
 917
 918       gtk_widget_event (window->focus_widget, (GdkEvent*) &fevent);
 919     }
 920
 921   return FALSE;
 922 }
 923
 924 static void
 925 gtk_window_style_set_event (GtkWidget *widget,
 926                             GdkEventClient *event)
 927 {
 928   GdkAtom atom_default_colors;
 929   GtkStyle *style_newdefault;
 930   GdkAtom realtype;
 931   gint retfmt, retlen;
 932   GdkColor *data, *stylecolors;
 933   int i = 0;
 934   GdkColormap *widget_cmap;
 935
 936   atom_default_colors = gdk_atom_intern("_GTK_DEFAULT_COLORS", FALSE);
 937
 938   if(gdk_property_get (GDK_ROOT_PARENT(),
 939                        atom_default_colors,
 940                        gdk_atom_intern("STRING", FALSE),
 941                        0,
 942                        sizeof(GdkColor) * GTK_STYLE_NUM_STYLECOLORS(),
 943                        FALSE,
 944                        &realtype,
 945                        &retfmt,
 946                        &retlen,
 947                        (guchar **)&data) != TRUE) {
 948     g_warning("gdk_property_get() failed in _GTK_STYLE_CHANGED handler\n");
 949     return;
 950   }
 951   if(retfmt != sizeof(gushort)*8) {
 952     g_warning("retfmt (%d) != sizeof(gushort)*8 (%d)\n", retfmt,
 953         sizeof(gushort)*8);
 954     return;
 955   }
 956   /* We have the color data, now let's interpret it */
 957   style_newdefault = gtk_widget_get_default_style();
 958   gtk_style_ref(style_newdefault);
 959   stylecolors = (GdkColor *) style_newdefault;
 960
 961   widget_cmap = gtk_widget_get_colormap(widget);
 962   for(i = 0; i < GTK_STYLE_NUM_STYLECOLORS(); i++) {
 963     stylecolors[i] = data[i];
 964     gdk_color_alloc(widget_cmap, &stylecolors[i]);
 965   }
 966
 967   gtk_widget_set_default_style(style_newdefault);
 968   gtk_style_unref(style_newdefault);
 969
 970   /* Now we need to redraw everything */
 971   gtk_widget_draw(widget, NULL);
 972   gtk_widget_draw_children(widget);
 973 }
 974
 975 static gint
 976 gtk_window_client_event (GtkWidget      *widget,
 977                          GdkEventClient *event)
 978 {
 979   GdkAtom atom_styleset;
 980   g_return_val_if_fail (widget != NULL, FALSE);
 981   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
 982   g_return_val_if_fail (event != NULL, FALSE);
 983
 984   atom_styleset = gdk_atom_intern("_GTK_STYLE_CHANGED", FALSE);
 985
 986   if(event->message_type == atom_styleset) {
 987     gtk_window_style_set_event(widget, event);
 988   }
 989   return FALSE;
 990 }
 991
 992 static gint
 993 gtk_window_need_resize (GtkContainer *container)
 994 {
 995   GtkWindow *window;
 996   gint return_val;
 997
 998   g_return_val_if_fail (container != NULL, FALSE);
 999   g_return_val_if_fail (GTK_IS_WINDOW (container), FALSE);
1000
1001   return_val = FALSE;
1002
1003   window = GTK_WINDOW (container);
1004   if (window->handling_resize)
1005     return return_val;
1006
1007   if (GTK_WIDGET_VISIBLE (container))
1008     {
1009       window->need_resize = TRUE;
1010       return_val = gtk_window_move_resize (GTK_WIDGET (window));
1011       window->need_resize = FALSE;
1012     }
1013
1014   return return_val;
1015 }
1016
1017 static gint
1018 gtk_real_window_move_resize (GtkWindow *window,
1019                              gint      *x,
1020                              gint      *y,
1021                              gint       width,
1022                              gint       height)
1023 {
1024   GtkWidget *widget;
1025   GtkWidget *resize_container, *child;
1026   GSList *resize_containers;
1027   GSList *tmp_list;
1028   gint return_val;
1029
1030   g_return_val_if_fail (window != NULL, FALSE);
1031   g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
1032   g_return_val_if_fail ((x != NULL) || (y != NULL), FALSE);
1033
1034   return_val = FALSE;
1035
1036   widget = GTK_WIDGET (window);
1037
1038   if ((*x != -1) && (*y != -1))
1039     gdk_window_move (widget->window, *x, *y);
1040
1041   if ((widget->requisition.width == 0) ||
1042       (widget->requisition.height == 0))
1043     {
1044       widget->requisition.width = 200;
1045       widget->requisition.height = 200;
1046     }
1047
1048   gdk_window_get_geometry (widget->window, NULL, NULL, &width, &height, NULL);
1049
1050   resize_containers = NULL;
1051
1052   if ((window->auto_shrink &&
1053        ((width != widget->requisition.width) ||
1054         (height != widget->requisition.height))) ||
1055       (width < widget->requisition.width) ||
1056       (height < widget->requisition.height))
1057     {
1058       if (window->resize_count == 0)
1059         {
1060           window->resize_count += 1;
1061           gdk_window_resize (widget->window,
1062                              widget->requisition.width,
1063                              widget->requisition.height);
1064         }
1065     }
1066   else
1067     {
1068       /* The window hasn't changed size but one of its children
1069        *  queued a resize request. Which means that the allocation
1070        *  is not sufficient for the requisition of some child.
1071        *  We've already performed a size request at this point,
1072        *  so we simply need to run through the list of resize
1073        *  widgets and reallocate their sizes appropriately. We
1074        *  make the optimization of not performing reallocation
1075        *  for a widget who also has a parent in the resize widgets
1076        *  list. GTK_RESIZE_NEEDED is used for flagging those
1077        *  parents inside this function.
1078        */
1079       GSList *resize_widgets, *node;
1080
1081       resize_widgets = GTK_CONTAINER (window)->resize_widgets;
1082       GTK_CONTAINER (window)->resize_widgets = NULL;
1083
1084       for (node = resize_widgets; node; node = node->next)
1085         {
1086           child = (GtkWidget *)node->data;
1087
1088           GTK_PRIVATE_UNSET_FLAGS (child, GTK_RESIZE_NEEDED);
1089
1090           widget = child->parent;
1091           while (widget &&
1092                  ((widget->allocation.width < widget->requisition.width) ||
1093                   (widget->allocation.height < widget->requisition.height)))
1094             widget = widget->parent;
1095
1096           if (widget)
1097             GTK_PRIVATE_SET_FLAGS (widget, GTK_RESIZE_NEEDED);
1098         }
1099
1100       for (node = resize_widgets; node; node = node->next)
1101         {
1102           child = (GtkWidget *)node->data;
1103
1104           resize_container = child->parent;
1105           while (resize_container &&
1106                  !GTK_WIDGET_RESIZE_NEEDED (resize_container))
1107             resize_container = resize_container->parent;
1108
1109           if (resize_container)
1110             widget = resize_container->parent;
1111           else
1112             widget = NULL;
1113
1114           while (widget)
1115             {
1116               if (GTK_WIDGET_RESIZE_NEEDED (widget))
1117                 {
1118                   GTK_PRIVATE_UNSET_FLAGS (resize_container, GTK_RESIZE_NEEDED);
1119                   resize_container = widget;
1120                 }
1121               widget = widget->parent;
1122             }
1123
1124           if (resize_container &&
1125               !g_slist_find (resize_containers, resize_container))
1126             resize_containers = g_slist_prepend (resize_containers,
1127                                                  resize_container);
1128         }
1129
1130       g_slist_free (resize_widgets);
1131
1132       tmp_list = resize_containers;
1133       while (tmp_list)
1134        {
1135          widget = tmp_list->data;
1136          tmp_list = tmp_list->next;
1137
1138          GTK_PRIVATE_UNSET_FLAGS (widget, GTK_RESIZE_NEEDED);
1139          gtk_widget_size_allocate (widget, &widget->allocation);
1140          gtk_widget_queue_draw (widget);
1141        }
1142
1143       g_slist_free (resize_containers);
1144     }
1145
1146   return return_val;
1147 }
1148
1149 static gint
1150 gtk_window_move_resize (GtkWidget *widget)
1151 {
1152   GtkWindow *window;
1153   gint x, y;
1154   gint width, height;
1155   gint screen_width;
1156   gint screen_height;
1157   gint return_val;
1158
1159   g_return_val_if_fail (widget != NULL, FALSE);
1160   g_return_val_if_fail (GTK_IS_WINDOW (widget), FALSE);
1161
1162   return_val = FALSE;
1163
1164   if (GTK_WIDGET_REALIZED (widget))
1165     {
1166       window = GTK_WINDOW (widget);
1167
1168       /* Remember old size, to know if we have to reset hints */
1169       width = widget->requisition.width;
1170       height = widget->requisition.height;
1171       gtk_widget_size_request (widget, &widget->requisition);
1172
1173       if (GTK_WIDGET_MAPPED (widget) &&
1174           (width != widget->requisition.width ||
1175            height != widget->requisition.height))
1176         gtk_window_set_hints (widget, &widget->requisition);
1177
1178       x = -1;
1179       y = -1;
1180       width = widget->requisition.width;
1181       height = widget->requisition.height;
1182
1183       if (window->use_uposition)
1184         switch (window->position)
1185           {
1186           case GTK_WIN_POS_CENTER:
1187             x = (gdk_screen_width () - width) / 2;
1188             y = (gdk_screen_height () - height) / 2;
1189             gtk_widget_set_uposition (widget, x, y);
1190             break;
1191           case GTK_WIN_POS_MOUSE:
1192             gdk_window_get_pointer (NULL, &x, &y, NULL);
1193
1194             x -= width / 2;
1195             y -= height / 2;
1196
1197             screen_width = gdk_screen_width ();
1198             screen_height = gdk_screen_height ();
1199
1200             if (x < 0)
1201               x = 0;
1202             else if (x > (screen_width - width))
1203               x = screen_width - width;
1204
1205             if (y < 0)
1206               y = 0;
1207             else if (y > (screen_height - height))
1208               y = screen_height - height;
1209
1210             gtk_widget_set_uposition (widget, x, y);
1211             break;
1212           }
1213
1214       gtk_signal_emit (GTK_OBJECT (widget), window_signals[MOVE_RESIZE],
1215                        &x, &y, width, height, &return_val);
1216     }
1217
1218   return return_val;
1219 }
1220
1221 static void
1222 gtk_real_window_set_focus (GtkWindow *window,
1223                            GtkWidget *focus)
1224 {
1225   GdkEventFocus event;
1226
1227   g_return_if_fail (window != NULL);
1228   g_return_if_fail (GTK_IS_WINDOW (window));
1229
1230   if (focus && !GTK_WIDGET_CAN_FOCUS (focus))
1231     return;
1232
1233   if (window->focus_widget != focus)
1234     {
1235       if (window->focus_widget)
1236         {
1237           event.type = GDK_FOCUS_CHANGE;
1238           event.window = window->focus_widget->window;
1239           event.in = FALSE;
1240
1241           gtk_widget_event (window->focus_widget, (GdkEvent*) &event);
1242         }
1243
1244       window->focus_widget = focus;
1245
1246       if (window->focus_widget)
1247         {
1248           event.type = GDK_FOCUS_CHANGE;
1249           event.window = window->focus_widget->window;
1250           event.in = TRUE;
1251
1252           gtk_widget_event (window->focus_widget, (GdkEvent*) &event);
1253         }
1254     }
1255 }
1256
1257 static void
1258 gtk_window_set_hints (GtkWidget      *widget,
1259                       GtkRequisition *requisition)
1260 {
1261   GtkWindow *window;
1262   GtkWidgetAuxInfo *aux_info;
1263   gint flags;
1264   gint ux, uy;
1265
1266   g_return_if_fail (widget != NULL);
1267   g_return_if_fail (GTK_IS_WINDOW (widget));
1268   g_return_if_fail (requisition != NULL);
1269
1270   if (GTK_WIDGET_REALIZED (widget))
1271     {
1272       window = GTK_WINDOW (widget);
1273
1274       flags = 0;
1275       ux = 0;
1276       uy = 0;
1277
1278       aux_info = gtk_object_get_data (GTK_OBJECT (widget), "gtk-aux-info");
1279       if (aux_info && (aux_info->x != -1) && (aux_info->y != -1))
1280         {
1281           ux = aux_info->x;
1282           uy = aux_info->y;
1283           flags |= GDK_HINT_POS;
1284         }
1285       if (!window->allow_shrink)
1286         flags |= GDK_HINT_MIN_SIZE;
1287       if (!window->allow_grow)
1288         flags |= GDK_HINT_MAX_SIZE;
1289
1290       gdk_window_set_hints (widget->window, ux, uy,
1291                             requisition->width, requisition->height,
1292                             requisition->width, requisition->height,
1293                             flags);
1294
1295       if (window->use_uposition && (flags & GDK_HINT_POS))
1296         {
1297           window->use_uposition = FALSE;
1298           gdk_window_move (widget->window, ux, uy);
1299         }
1300     }
1301 }
1302
1303 static gint
1304 gtk_window_check_accelerator (GtkWindow *window,
1305                               gint       key,
1306                               guint      mods)
1307 {
1308   GtkAcceleratorTable *table;
1309   GList *tmp;
1310
1311   if ((key >= 0x20) && (key <= 0xFF))
1312     {
1313       tmp = window->accelerator_tables;
1314       while (tmp)
1315         {
1316           table = tmp->data;
1317           tmp = tmp->next;
1318
1319           if (gtk_accelerator_table_check (table, key, mods))
1320             return TRUE;
1321         }
1322
1323       if (gtk_accelerator_table_check (NULL, key, mods))
1324         return TRUE;
1325     }
1326
1327   return FALSE;
1328 }