Pileus Git - ~andy/gtk/blob - gtk/gtktogglebutton.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 Lesser 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  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser 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
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "gtklabel.h"
  28 #include "gtkmain.h"
  29 #include "gtksignal.h"
  30 #include "gtktogglebutton.h"
  31 #include "gtkintl.h"
  32
  33 #define DEFAULT_LEFT_POS  4
  34 #define DEFAULT_TOP_POS   4
  35 #define DEFAULT_SPACING   7
  36
  37 enum {
  38   TOGGLED,
  39   LAST_SIGNAL
  40 };
  41
  42 enum {
  43   PROP_0,
  44   PROP_ACTIVE,
  45   PROP_INCONSISTENT,
  46   PROP_DRAW_INDICATOR
  47 };
  48
  49
  50 static void gtk_toggle_button_class_init    (GtkToggleButtonClass *klass);
  51 static void gtk_toggle_button_init          (GtkToggleButton      *toggle_button);
  52 static void gtk_toggle_button_paint         (GtkWidget            *widget,
  53                                              GdkRectangle         *area);
  54 static void gtk_toggle_button_size_allocate (GtkWidget            *widget,
  55                                              GtkAllocation        *allocation);
  56 static gint gtk_toggle_button_expose        (GtkWidget            *widget,
  57                                              GdkEventExpose       *event);
  58 static void gtk_toggle_button_pressed       (GtkButton            *button);
  59 static void gtk_toggle_button_released      (GtkButton            *button);
  60 static void gtk_toggle_button_clicked       (GtkButton            *button);
  61 static void gtk_toggle_button_enter         (GtkButton            *button);
  62 static void gtk_toggle_button_leave         (GtkButton            *button);
  63 static void gtk_toggle_button_set_property  (GObject              *object,
  64                                              guint                 prop_id,
  65                                              const GValue         *value,
  66                                              GParamSpec           *pspec);
  67 static void gtk_toggle_button_get_property  (GObject              *object,
  68                                              guint                 prop_id,
  69                                              GValue               *value,
  70                                              GParamSpec           *pspec);
  71 static void gtk_toggle_button_leave         (GtkButton            *button);
  72 static void gtk_toggle_button_realize       (GtkWidget            *widget);
  73 static void gtk_toggle_button_unrealize     (GtkWidget            *widget);
  74 static void gtk_toggle_button_map           (GtkWidget            *widget);
  75 static void gtk_toggle_button_unmap         (GtkWidget            *widget);
  76
  77 static guint toggle_button_signals[LAST_SIGNAL] = { 0 };
  78 static GtkContainerClass *parent_class = NULL;
  79
  80 GtkType
  81 gtk_toggle_button_get_type (void)
  82 {
  83   static GtkType toggle_button_type = 0;
  84
  85   if (!toggle_button_type)
  86     {
  87       static const GtkTypeInfo toggle_button_info =
  88       {
  89         "GtkToggleButton",
  90         sizeof (GtkToggleButton),
  91         sizeof (GtkToggleButtonClass),
  92         (GtkClassInitFunc) gtk_toggle_button_class_init,
  93         (GtkObjectInitFunc) gtk_toggle_button_init,
  94         /* reserved_1 */ NULL,
  95         /* reserved_2 */ NULL,
  96         (GtkClassInitFunc) NULL,
  97       };
  98
  99       toggle_button_type = gtk_type_unique (GTK_TYPE_BUTTON, &toggle_button_info);
 100     }
 101
 102   return toggle_button_type;
 103 }
 104
 105 static void
 106 gtk_toggle_button_class_init (GtkToggleButtonClass *class)
 107 {
 108   GtkObjectClass *object_class;
 109   GObjectClass   *gobject_class;
 110   GtkWidgetClass *widget_class;
 111   GtkContainerClass *container_class;
 112   GtkButtonClass *button_class;
 113
 114   object_class = (GtkObjectClass*) class;
 115   gobject_class = G_OBJECT_CLASS (class);
 116   widget_class = (GtkWidgetClass*) class;
 117   container_class = (GtkContainerClass*) class;
 118   button_class = (GtkButtonClass*) class;
 119
 120   parent_class = gtk_type_class (GTK_TYPE_BUTTON);
 121
 122
 123   gobject_class->set_property = gtk_toggle_button_set_property;
 124   gobject_class->get_property = gtk_toggle_button_get_property;
 125
 126   widget_class->size_allocate = gtk_toggle_button_size_allocate;
 127   widget_class->expose_event = gtk_toggle_button_expose;
 128   widget_class->realize = gtk_toggle_button_realize;
 129   widget_class->unrealize = gtk_toggle_button_unrealize;
 130   widget_class->map = gtk_toggle_button_map;
 131   widget_class->unmap = gtk_toggle_button_unmap;
 132
 133   button_class->pressed = gtk_toggle_button_pressed;
 134   button_class->released = gtk_toggle_button_released;
 135   button_class->clicked = gtk_toggle_button_clicked;
 136   button_class->enter = gtk_toggle_button_enter;
 137   button_class->leave = gtk_toggle_button_leave;
 138
 139   class->toggled = NULL;
 140
 141   g_object_class_install_property (gobject_class,
 142                                    PROP_ACTIVE,
 143                                    g_param_spec_boolean ("active",
 144                                                          _("Active"),
 145                                                          _("If the toggle button should be pressed in or not"),
 146                                                          FALSE,
 147                                                          G_PARAM_READWRITE));
 148
 149   g_object_class_install_property (gobject_class,
 150                                    PROP_INCONSISTENT,
 151                                    g_param_spec_boolean ("inconsistent",
 152                                                          _("Inconsistent"),
 153                                                          _("If the toggle button is in an \"in between\" state."),
 154                                                          FALSE,
 155                                                          G_PARAM_READWRITE));
 156
 157   g_object_class_install_property (gobject_class,
 158                                    PROP_DRAW_INDICATOR,
 159                                    g_param_spec_boolean ("draw_indicator",
 160                                                          _("Draw Indicator"),
 161                                                          _("If the toggle part of the button is displayed"),
 162                                                          FALSE,
 163                                                          G_PARAM_READWRITE));
 164
 165   toggle_button_signals[TOGGLED] =
 166     gtk_signal_new ("toggled",
 167                     GTK_RUN_FIRST,
 168                     GTK_CLASS_TYPE (object_class),
 169                     GTK_SIGNAL_OFFSET (GtkToggleButtonClass, toggled),
 170                     gtk_marshal_VOID__VOID,
 171                     GTK_TYPE_NONE, 0);
 172 }
 173
 174 static void
 175 gtk_toggle_button_init (GtkToggleButton *toggle_button)
 176 {
 177   toggle_button->active = FALSE;
 178   toggle_button->draw_indicator = FALSE;
 179   GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
 180 }
 181
 182
 183 GtkWidget*
 184 gtk_toggle_button_new (void)
 185 {
 186   return GTK_WIDGET (gtk_type_new (gtk_toggle_button_get_type ()));
 187 }
 188
 189 GtkWidget*
 190 gtk_toggle_button_new_with_label (const gchar *label)
 191 {
 192   GtkWidget *toggle_button;
 193   GtkWidget *label_widget;
 194
 195   toggle_button = gtk_toggle_button_new ();
 196   label_widget = gtk_label_new (label);
 197   gtk_misc_set_alignment (GTK_MISC (label_widget), 0.5, 0.5);
 198
 199   gtk_container_add (GTK_CONTAINER (toggle_button), label_widget);
 200   gtk_widget_show (label_widget);
 201
 202   return toggle_button;
 203 }
 204
 205 /**
 206  * gtk_toggle_button_new_with_mnemonic:
 207  * @label: the text of the button, with an underscore in front of the
 208  *         mnemonic character
 209  * @returns: a new #GtkToggleButton
 210  *
 211  * Creates a new #GtkToggleButton containing a label. The label
 212  * will be created using gtk_label_new_with_mnemonic(), so underscores
 213  * in @label indicate the mnemonic for the button.
 214  **/
 215 GtkWidget*
 216 gtk_toggle_button_new_with_mnemonic (const gchar *label)
 217 {
 218   GtkWidget *toggle_button;
 219   GtkWidget *label_widget;
 220
 221   toggle_button = gtk_toggle_button_new ();
 222   label_widget = gtk_label_new_with_mnemonic (label);
 223   gtk_misc_set_alignment (GTK_MISC (label_widget), 0.5, 0.5);
 224
 225   gtk_container_add (GTK_CONTAINER (toggle_button), label_widget);
 226   gtk_widget_show (label_widget);
 227
 228   return toggle_button;
 229 }
 230
 231 static void
 232 gtk_toggle_button_set_property (GObject      *object,
 233                                 guint         prop_id,
 234                                 const GValue *value,
 235                                 GParamSpec   *pspec)
 236 {
 237   GtkToggleButton *tb;
 238
 239   tb = GTK_TOGGLE_BUTTON (object);
 240
 241   switch (prop_id)
 242     {
 243     case PROP_ACTIVE:
 244       gtk_toggle_button_set_active (tb, g_value_get_boolean (value));
 245       break;
 246     case PROP_INCONSISTENT:
 247       gtk_toggle_button_set_inconsistent (tb, g_value_get_boolean (value));
 248       break;
 249     case PROP_DRAW_INDICATOR:
 250       gtk_toggle_button_set_mode (tb, g_value_get_boolean (value));
 251       break;
 252     default:
 253       break;
 254     }
 255 }
 256
 257 static void
 258 gtk_toggle_button_get_property (GObject      *object,
 259                                 guint         prop_id,
 260                                 GValue       *value,
 261                                 GParamSpec   *pspec)
 262 {
 263   GtkToggleButton *tb;
 264
 265   tb = GTK_TOGGLE_BUTTON (object);
 266
 267   switch (prop_id)
 268     {
 269     case PROP_ACTIVE:
 270       g_value_set_boolean (value, tb->active);
 271       break;
 272     case PROP_INCONSISTENT:
 273       g_value_set_boolean (value, tb->inconsistent);
 274       break;
 275     case PROP_DRAW_INDICATOR:
 276       g_value_set_boolean (value, tb->draw_indicator);
 277       break;
 278     default:
 279       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 280       break;
 281     }
 282 }
 283
 284 void
 285 gtk_toggle_button_set_mode (GtkToggleButton *toggle_button,
 286                             gboolean         draw_indicator)
 287 {
 288   GtkWidget *widget;
 289
 290   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
 291
 292   widget = GTK_WIDGET (toggle_button);
 293
 294   draw_indicator = draw_indicator ? TRUE : FALSE;
 295
 296   if (toggle_button->draw_indicator != draw_indicator)
 297     {
 298       if (GTK_WIDGET_REALIZED (toggle_button))
 299         {
 300           gboolean visible = GTK_WIDGET_VISIBLE (toggle_button);
 301
 302           if (visible)
 303             gtk_widget_hide (widget);
 304
 305           gtk_widget_unrealize (widget);
 306           toggle_button->draw_indicator = draw_indicator;
 307
 308           if (toggle_button->draw_indicator)
 309             GTK_WIDGET_SET_FLAGS (toggle_button, GTK_NO_WINDOW);
 310           else
 311             GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
 312
 313           gtk_widget_realize (widget);
 314
 315           if (visible)
 316             gtk_widget_show (widget);
 317         }
 318       else
 319         {
 320           toggle_button->draw_indicator = draw_indicator;
 321
 322           if (toggle_button->draw_indicator)
 323             GTK_WIDGET_SET_FLAGS (toggle_button, GTK_NO_WINDOW);
 324           else
 325             GTK_WIDGET_UNSET_FLAGS (toggle_button, GTK_NO_WINDOW);
 326         }
 327
 328       if (GTK_WIDGET_VISIBLE (toggle_button))
 329         gtk_widget_queue_resize (GTK_WIDGET (toggle_button));
 330
 331       g_object_notify (G_OBJECT (toggle_button), "draw_indicator");
 332     }
 333 }
 334
 335 /**
 336  * gtk_toggle_button_get_mode:
 337  * @toggle_button: a #GtkToggleButton
 338  *
 339  * Retrieves whether the button is displayed as a separate indicator
 340  * and label. See gtk_toggle_button_set_mode().
 341  *
 342  * Return value: %TRUE if the togglebutton is drawn as a separate indicator
 343  *   and label.
 344  **/
 345 gboolean
 346 gtk_toggle_button_get_mode (GtkToggleButton *toggle_button)
 347 {
 348   g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
 349
 350   return toggle_button->draw_indicator;
 351 }
 352
 353 void
 354 gtk_toggle_button_set_active (GtkToggleButton *toggle_button,
 355                               gboolean         is_active)
 356 {
 357   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
 358
 359   is_active = is_active != FALSE;
 360
 361   if (toggle_button->active != is_active)
 362     gtk_button_clicked (GTK_BUTTON (toggle_button));
 363 }
 364
 365
 366 gboolean
 367 gtk_toggle_button_get_active (GtkToggleButton *toggle_button)
 368 {
 369   g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
 370
 371   return (toggle_button->active) ? TRUE : FALSE;
 372 }
 373
 374
 375 void
 376 gtk_toggle_button_toggled (GtkToggleButton *toggle_button)
 377 {
 378   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
 379
 380   gtk_signal_emit (GTK_OBJECT (toggle_button), toggle_button_signals[TOGGLED]);
 381 }
 382
 383 /**
 384  * gtk_toggle_button_set_inconsistent:
 385  * @toggle_button: a #GtkToggleButton
 386  * @setting: %TRUE if state is inconsistent
 387  *
 388  * If the user has selected a range of elements (such as some text or
 389  * spreadsheet cells) that are affected by a toggle button, and the
 390  * current values in that range are inconsistent, you may want to
 391  * display the toggle in an "in between" state. This function turns on
 392  * "in between" display.  Normally you would turn off the inconsistent
 393  * state again if the user toggles the toggle button. This has to be
 394  * done manually, gtk_toggle_button_set_inconsistent() only affects
 395  * visual appearance, it doesn't affect the semantics of the button.
 396  *
 397  **/
 398 void
 399 gtk_toggle_button_set_inconsistent (GtkToggleButton *toggle_button,
 400                                     gboolean         setting)
 401 {
 402   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button));
 403
 404   setting = setting != FALSE;
 405
 406   if (setting != toggle_button->inconsistent)
 407     {
 408       toggle_button->inconsistent = setting;
 409       gtk_widget_queue_draw (GTK_WIDGET (toggle_button));
 410
 411       g_object_notify (G_OBJECT (toggle_button), "inconsistent");
 412     }
 413 }
 414
 415 /**
 416  * gtk_toggle_button_get_inconsistent:
 417  * @toggle_button: a #GtkToggleButton
 418  *
 419  * Gets the value set by gtk_toggle_button_set_inconsistent().
 420  *
 421  * Return value: %TRUE if the button is displayed as inconsistent, %FALSE otherwise
 422  **/
 423 gboolean
 424 gtk_toggle_button_get_inconsistent (GtkToggleButton *toggle_button)
 425 {
 426   g_return_val_if_fail (GTK_IS_TOGGLE_BUTTON (toggle_button), FALSE);
 427
 428   return toggle_button->inconsistent;
 429 }
 430
 431 static void
 432 gtk_toggle_button_paint (GtkWidget    *widget,
 433                          GdkRectangle *area)
 434 {
 435   GtkButton *button;
 436   GtkToggleButton *toggle_button;
 437   GtkShadowType shadow_type;
 438   GtkStateType state_type;
 439   gint width, height;
 440   gboolean interior_focus;
 441   gint x, y;
 442
 443   button = GTK_BUTTON (widget);
 444   toggle_button = GTK_TOGGLE_BUTTON (widget);
 445
 446   if (GTK_WIDGET_DRAWABLE (widget))
 447     {
 448       gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
 449
 450       x = 0;
 451       y = 0;
 452       width = widget->allocation.width - GTK_CONTAINER (widget)->border_width * 2;
 453       height = widget->allocation.height - GTK_CONTAINER (widget)->border_width * 2;
 454
 455       gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
 456       gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
 457
 458       if (GTK_WIDGET_HAS_DEFAULT (widget) &&
 459           GTK_BUTTON (widget)->relief == GTK_RELIEF_NORMAL)
 460         {
 461           gtk_paint_box (widget->style, widget->window,
 462                          GTK_STATE_NORMAL, GTK_SHADOW_IN,
 463                          area, widget, "togglebuttondefault",
 464                          x, y, width, height);
 465         }
 466
 467       if (GTK_WIDGET_CAN_DEFAULT (widget))
 468         {
 469           x += widget->style->xthickness;
 470           y += widget->style->ythickness;
 471           width -= 2 * x + DEFAULT_SPACING;
 472           height -= 2 * y + DEFAULT_SPACING;
 473           x += DEFAULT_LEFT_POS;
 474           y += DEFAULT_TOP_POS;
 475         }
 476
 477       if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
 478         {
 479           x += 1;
 480           y += 1;
 481           width -= 2;
 482           height -= 2;
 483         }
 484
 485       state_type = GTK_WIDGET_STATE (widget);
 486
 487       if (toggle_button->inconsistent)
 488         {
 489           if (state_type == GTK_STATE_ACTIVE)
 490             state_type = GTK_STATE_NORMAL;
 491           shadow_type = GTK_SHADOW_ETCHED_IN;
 492         }
 493       else if ((GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE) ||
 494           toggle_button->active)
 495         shadow_type = GTK_SHADOW_IN;
 496       else
 497         shadow_type = GTK_SHADOW_OUT;
 498
 499       if (button->relief != GTK_RELIEF_NONE ||
 500           (GTK_WIDGET_STATE(widget) != GTK_STATE_NORMAL &&
 501            GTK_WIDGET_STATE(widget) != GTK_STATE_INSENSITIVE))
 502         gtk_paint_box (widget->style, widget->window,
 503                        state_type,
 504                        shadow_type, area, widget, "togglebutton",
 505                        x, y, width, height);
 506
 507       if (GTK_WIDGET_HAS_FOCUS (widget))
 508         {
 509           if (interior_focus)
 510             {
 511               x += widget->style->xthickness + 1;
 512               y += widget->style->xthickness + 1;
 513               width -= 2 * (widget->style->xthickness + 1);
 514               height -= 2 * (widget->style->ythickness + 1);
 515             }
 516           else
 517             {
 518               x -= 1;
 519               y -= 1;
 520               width += 2;
 521               height += 2;
 522             }
 523
 524           gtk_paint_focus (widget->style, widget->window,
 525                            area, widget, "togglebutton",
 526                            x, y, width - 1, height - 1);
 527         }
 528     }
 529 }
 530
 531 static void
 532 gtk_toggle_button_size_allocate (GtkWidget     *widget,
 533                                  GtkAllocation *allocation)
 534 {
 535   if (!GTK_WIDGET_NO_WINDOW (widget) &&
 536       GTK_WIDGET_CLASS (parent_class)->size_allocate)
 537     GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
 538 }
 539
 540 static gint
 541 gtk_toggle_button_expose (GtkWidget      *widget,
 542                           GdkEventExpose *event)
 543 {
 544   if (GTK_WIDGET_DRAWABLE (widget))
 545     {
 546       GtkWidget *child = GTK_BIN (widget)->child;
 547
 548       gtk_toggle_button_paint (widget, &event->area);
 549
 550       if (child)
 551         gtk_container_propagate_expose (GTK_CONTAINER (widget), child, event);
 552     }
 553
 554   return TRUE;
 555 }
 556
 557 static void
 558 gtk_toggle_button_pressed (GtkButton *button)
 559 {
 560   GtkToggleButton *toggle_button;
 561   GtkStateType new_state;
 562
 563   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
 564
 565   toggle_button = GTK_TOGGLE_BUTTON (button);
 566
 567   button->button_down = TRUE;
 568
 569   if (toggle_button->active)
 570     new_state = (button->in_button ? GTK_STATE_NORMAL : GTK_STATE_ACTIVE);
 571   else
 572     new_state = (button->in_button ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
 573
 574   if (GTK_WIDGET_STATE (button) != new_state)
 575     gtk_widget_set_state (GTK_WIDGET (button), new_state);
 576 }
 577
 578 static void
 579 gtk_toggle_button_released (GtkButton *button)
 580 {
 581   GtkToggleButton *toggle_button;
 582   GtkStateType new_state;
 583
 584   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
 585
 586   if (button->button_down)
 587     {
 588       toggle_button = GTK_TOGGLE_BUTTON (button);
 589
 590       button->button_down = FALSE;
 591
 592       if (button->in_button)
 593         {
 594           gtk_button_clicked (button);
 595         }
 596       else
 597         {
 598           if (toggle_button->active)
 599             new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
 600           else
 601             new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
 602
 603           if (GTK_WIDGET_STATE (button) != new_state)
 604             gtk_widget_set_state (GTK_WIDGET (button), new_state);
 605         }
 606     }
 607 }
 608
 609 static void
 610 gtk_toggle_button_clicked (GtkButton *button)
 611 {
 612   GtkToggleButton *toggle_button;
 613   GtkStateType new_state;
 614
 615   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
 616
 617   toggle_button = GTK_TOGGLE_BUTTON (button);
 618   toggle_button->active = !toggle_button->active;
 619
 620   gtk_toggle_button_toggled (toggle_button);
 621
 622   if (toggle_button->active)
 623     new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
 624   else
 625     new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
 626
 627   if (GTK_WIDGET_STATE (button) != new_state)
 628     gtk_widget_set_state (GTK_WIDGET (button), new_state);
 629   else
 630     gtk_widget_queue_draw (GTK_WIDGET (button));
 631
 632   g_object_notify (G_OBJECT (toggle_button), "active");
 633 }
 634
 635 static void
 636 gtk_toggle_button_enter (GtkButton *button)
 637 {
 638   GtkToggleButton *toggle_button;
 639   GtkStateType new_state;
 640
 641   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
 642
 643   toggle_button = GTK_TOGGLE_BUTTON (button);
 644
 645   if (toggle_button->active)
 646     new_state = (button->button_down ? GTK_STATE_NORMAL : GTK_STATE_PRELIGHT);
 647   else
 648     new_state = (button->button_down ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);
 649
 650   if (GTK_WIDGET_STATE (button) != new_state)
 651     gtk_widget_set_state (GTK_WIDGET (button), new_state);
 652 }
 653
 654 static void
 655 gtk_toggle_button_leave (GtkButton *button)
 656 {
 657   GtkToggleButton *toggle_button;
 658   GtkStateType new_state;
 659
 660   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));
 661
 662   toggle_button = GTK_TOGGLE_BUTTON (button);
 663
 664   new_state = (toggle_button->active ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
 665
 666   if (GTK_WIDGET_STATE (button) != new_state)
 667     gtk_widget_set_state (GTK_WIDGET (button), new_state);
 668 }
 669
 670 static void
 671 gtk_toggle_button_realize (GtkWidget *widget)
 672 {
 673   GtkToggleButton *toggle_button;
 674   GdkWindowAttr attributes;
 675   gint attributes_mask;
 676   gint border_width;
 677
 678   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
 679
 680   toggle_button = GTK_TOGGLE_BUTTON (widget);
 681   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 682
 683   border_width = GTK_CONTAINER (widget)->border_width;
 684
 685   attributes.window_type = GDK_WINDOW_CHILD;
 686   attributes.x = widget->allocation.x + border_width;
 687   attributes.y = widget->allocation.y + border_width;
 688   attributes.width = widget->allocation.width - border_width * 2;
 689   attributes.height = widget->allocation.height - border_width * 2;
 690   attributes.event_mask = gtk_widget_get_events (widget);
 691   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 692                             GDK_BUTTON_PRESS_MASK |
 693                             GDK_BUTTON_RELEASE_MASK |
 694                             GDK_ENTER_NOTIFY_MASK |
 695                             GDK_LEAVE_NOTIFY_MASK);
 696
 697   if (GTK_WIDGET_NO_WINDOW (widget))
 698     {
 699       attributes.wclass = GDK_INPUT_ONLY;
 700       attributes_mask = GDK_WA_X | GDK_WA_Y;
 701
 702       widget->window = gtk_widget_get_parent_window (widget);
 703       gdk_window_ref (widget->window);
 704
 705       toggle_button->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
 706                                                     &attributes, attributes_mask);
 707       gdk_window_set_user_data (toggle_button->event_window, toggle_button);
 708     }
 709   else
 710     {
 711       attributes.wclass = GDK_INPUT_OUTPUT;
 712       attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 713       attributes.visual = gtk_widget_get_visual (widget);
 714       attributes.colormap = gtk_widget_get_colormap (widget);
 715       widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 716                                        &attributes, attributes_mask);
 717       gdk_window_set_user_data (widget->window, toggle_button);
 718     }
 719
 720   widget->style = gtk_style_attach (widget->style, widget->window);
 721
 722   if (!GTK_WIDGET_NO_WINDOW (widget))
 723     gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 724 }
 725
 726 static void
 727 gtk_toggle_button_unrealize (GtkWidget *widget)
 728 {
 729   GtkToggleButton *toggle_button;
 730
 731   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
 732
 733   toggle_button = GTK_TOGGLE_BUTTON (widget);
 734
 735   if (GTK_WIDGET_NO_WINDOW (widget))
 736     {
 737       gdk_window_set_user_data (toggle_button->event_window, NULL);
 738       gdk_window_destroy (toggle_button->event_window);
 739       toggle_button->event_window = NULL;
 740     }
 741
 742   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 743     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 744 }
 745
 746 static void
 747 gtk_toggle_button_map (GtkWidget *widget)
 748 {
 749   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
 750
 751   if (GTK_WIDGET_NO_WINDOW (widget))
 752     gdk_window_show (GTK_TOGGLE_BUTTON (widget)->event_window);
 753
 754   GTK_WIDGET_CLASS (parent_class)->map (widget);
 755 }
 756
 757 static void
 758 gtk_toggle_button_unmap (GtkWidget *widget)
 759 {
 760   g_return_if_fail (GTK_IS_TOGGLE_BUTTON (widget));
 761
 762   if (GTK_WIDGET_NO_WINDOW (widget))
 763     gdk_window_hide (GTK_TOGGLE_BUTTON (widget)->event_window);
 764
 765   GTK_WIDGET_CLASS (parent_class)->unmap (widget);
 766 }