gtkbutton.c 24.9 KB
Newer Older
Elliot Lee's avatar
Elliot Lee committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14
/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
15 16 17
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
Elliot Lee's avatar
Elliot Lee committed
18
 */
19
#include <string.h>
Elliot Lee's avatar
Elliot Lee committed
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
#include "gtkbutton.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtksignal.h"


#define CHILD_SPACING     1
#define DEFAULT_LEFT_POS  4
#define DEFAULT_TOP_POS   4
#define DEFAULT_SPACING   7


enum {
  PRESSED,
  RELEASED,
  CLICKED,
  ENTER,
  LEAVE,
  LAST_SIGNAL
};
40 41
enum {
  ARG_0,
42 43
  ARG_LABEL,
  ARG_RELIEF
44
};
45

Elliot Lee's avatar
Elliot Lee committed
46 47 48 49


static void gtk_button_class_init     (GtkButtonClass   *klass);
static void gtk_button_init           (GtkButton        *button);
50
static void gtk_button_set_arg        (GtkObject        *object,
51 52
				       GtkArg           *arg,
				       guint		 arg_id);
53
static void gtk_button_get_arg        (GtkObject        *object,
54 55
				       GtkArg           *arg,
				       guint		 arg_id);
Elliot Lee's avatar
Elliot Lee committed
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
static void gtk_button_realize        (GtkWidget        *widget);
static void gtk_button_size_request   (GtkWidget        *widget,
				       GtkRequisition   *requisition);
static void gtk_button_size_allocate  (GtkWidget        *widget,
				       GtkAllocation    *allocation);
static void gtk_button_paint          (GtkWidget        *widget,
				       GdkRectangle     *area);
static void gtk_button_draw           (GtkWidget        *widget,
				       GdkRectangle     *area);
static void gtk_button_draw_focus     (GtkWidget        *widget);
static void gtk_button_draw_default   (GtkWidget        *widget);
static gint gtk_button_expose         (GtkWidget        *widget,
				       GdkEventExpose   *event);
static gint gtk_button_button_press   (GtkWidget        *widget,
				       GdkEventButton   *event);
static gint gtk_button_button_release (GtkWidget        *widget,
				       GdkEventButton   *event);
static gint gtk_button_enter_notify   (GtkWidget        *widget,
				       GdkEventCrossing *event);
static gint gtk_button_leave_notify   (GtkWidget        *widget,
				       GdkEventCrossing *event);
static gint gtk_button_focus_in       (GtkWidget        *widget,
				       GdkEventFocus    *event);
static gint gtk_button_focus_out      (GtkWidget        *widget,
				       GdkEventFocus    *event);
static void gtk_button_add            (GtkContainer     *container,
				       GtkWidget        *widget);
static void gtk_button_remove         (GtkContainer     *container,
				       GtkWidget        *widget);
static void gtk_real_button_pressed   (GtkButton        *button);
static void gtk_real_button_released  (GtkButton        *button);
static void gtk_real_button_enter     (GtkButton        *button);
static void gtk_real_button_leave     (GtkButton        *button);
89
static GtkType gtk_button_child_type  (GtkContainer     *container);
Elliot Lee's avatar
Elliot Lee committed
90 91


92
static GtkBinClass *parent_class = NULL;
93
static guint button_signals[LAST_SIGNAL] = { 0 };
Elliot Lee's avatar
Elliot Lee committed
94 95


96
GtkType
97
gtk_button_get_type (void)
Elliot Lee's avatar
Elliot Lee committed
98
{
99
  static GtkType button_type = 0;
Elliot Lee's avatar
Elliot Lee committed
100 101 102

  if (!button_type)
    {
103
      static const GtkTypeInfo button_info =
Elliot Lee's avatar
Elliot Lee committed
104 105 106 107 108 109
      {
	"GtkButton",
	sizeof (GtkButton),
	sizeof (GtkButtonClass),
	(GtkClassInitFunc) gtk_button_class_init,
	(GtkObjectInitFunc) gtk_button_init,
110 111
        /* reserved_1 */ NULL,
	/* reserved_2 */ NULL,
112
	(GtkClassInitFunc) NULL,
Elliot Lee's avatar
Elliot Lee committed
113 114
      };

115
      button_type = gtk_type_unique (GTK_TYPE_BIN, &button_info);
116
      gtk_type_set_chunk_alloc (button_type, 16);
Elliot Lee's avatar
Elliot Lee committed
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132
    }

  return button_type;
}

static void
gtk_button_class_init (GtkButtonClass *klass)
{
  GtkObjectClass *object_class;
  GtkWidgetClass *widget_class;
  GtkContainerClass *container_class;

  object_class = (GtkObjectClass*) klass;
  widget_class = (GtkWidgetClass*) klass;
  container_class = (GtkContainerClass*) klass;

133
  parent_class = gtk_type_class (GTK_TYPE_BIN);
Elliot Lee's avatar
Elliot Lee committed
134

135
  gtk_object_add_arg_type ("GtkButton::label", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_LABEL);
136
  gtk_object_add_arg_type ("GtkButton::relief", GTK_TYPE_RELIEF_STYLE, GTK_ARG_READWRITE, ARG_RELIEF);
Elliot Lee's avatar
Elliot Lee committed
137 138 139 140 141 142

  button_signals[PRESSED] =
    gtk_signal_new ("pressed",
                    GTK_RUN_FIRST,
                    object_class->type,
                    GTK_SIGNAL_OFFSET (GtkButtonClass, pressed),
143
                    gtk_marshal_NONE__NONE,
Elliot Lee's avatar
Elliot Lee committed
144 145 146 147 148 149
		    GTK_TYPE_NONE, 0);
  button_signals[RELEASED] =
    gtk_signal_new ("released",
                    GTK_RUN_FIRST,
                    object_class->type,
                    GTK_SIGNAL_OFFSET (GtkButtonClass, released),
150
                    gtk_marshal_NONE__NONE,
Elliot Lee's avatar
Elliot Lee committed
151 152 153
		    GTK_TYPE_NONE, 0);
  button_signals[CLICKED] =
    gtk_signal_new ("clicked",
154
                    GTK_RUN_FIRST | GTK_RUN_ACTION,
Elliot Lee's avatar
Elliot Lee committed
155 156
                    object_class->type,
                    GTK_SIGNAL_OFFSET (GtkButtonClass, clicked),
157
                    gtk_marshal_NONE__NONE,
Elliot Lee's avatar
Elliot Lee committed
158 159 160 161 162
		    GTK_TYPE_NONE, 0);
  button_signals[ENTER] =
    gtk_signal_new ("enter",
                    GTK_RUN_FIRST,
                    object_class->type,
163
                    GTK_SIGNAL_OFFSET (GtkButtonClass, enter),
164
                    gtk_marshal_NONE__NONE,
Elliot Lee's avatar
Elliot Lee committed
165 166 167 168 169
		    GTK_TYPE_NONE, 0);
  button_signals[LEAVE] =
    gtk_signal_new ("leave",
                    GTK_RUN_FIRST,
                    object_class->type,
170
                    GTK_SIGNAL_OFFSET (GtkButtonClass, leave),
171
                    gtk_marshal_NONE__NONE,
Elliot Lee's avatar
Elliot Lee committed
172 173 174 175
		    GTK_TYPE_NONE, 0);

  gtk_object_class_add_signals (object_class, button_signals, LAST_SIGNAL);

176 177 178
  object_class->set_arg = gtk_button_set_arg;
  object_class->get_arg = gtk_button_get_arg;

Elliot Lee's avatar
Elliot Lee committed
179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
  widget_class->activate_signal = button_signals[CLICKED];
  widget_class->realize = gtk_button_realize;
  widget_class->draw = gtk_button_draw;
  widget_class->draw_focus = gtk_button_draw_focus;
  widget_class->draw_default = gtk_button_draw_default;
  widget_class->size_request = gtk_button_size_request;
  widget_class->size_allocate = gtk_button_size_allocate;
  widget_class->expose_event = gtk_button_expose;
  widget_class->button_press_event = gtk_button_button_press;
  widget_class->button_release_event = gtk_button_button_release;
  widget_class->enter_notify_event = gtk_button_enter_notify;
  widget_class->leave_notify_event = gtk_button_leave_notify;
  widget_class->focus_in_event = gtk_button_focus_in;
  widget_class->focus_out_event = gtk_button_focus_out;

  container_class->add = gtk_button_add;
  container_class->remove = gtk_button_remove;
196
  container_class->child_type = gtk_button_child_type;
Elliot Lee's avatar
Elliot Lee committed
197 198 199 200

  klass->pressed = gtk_real_button_pressed;
  klass->released = gtk_real_button_released;
  klass->clicked = NULL;
201 202
  klass->enter = gtk_real_button_enter;
  klass->leave = gtk_real_button_leave;
Elliot Lee's avatar
Elliot Lee committed
203 204 205 206 207 208
}

static void
gtk_button_init (GtkButton *button)
{
  GTK_WIDGET_SET_FLAGS (button, GTK_CAN_FOCUS);
209
  GTK_WIDGET_UNSET_FLAGS (button, GTK_NO_WINDOW);
Elliot Lee's avatar
Elliot Lee committed
210 211 212 213

  button->child = NULL;
  button->in_button = FALSE;
  button->button_down = FALSE;
214
  button->relief = GTK_RELIEF_NORMAL;
Elliot Lee's avatar
Elliot Lee committed
215 216
}

217 218 219
static GtkType
gtk_button_child_type  (GtkContainer     *container)
{
220
  if (!GTK_BIN (container)->child)
221 222 223 224 225
    return GTK_TYPE_WIDGET;
  else
    return GTK_TYPE_NONE;
}

Elliot Lee's avatar
Elliot Lee committed
226
static void
227
gtk_button_set_arg (GtkObject *object,
228 229
		    GtkArg    *arg,
		    guint      arg_id)
Elliot Lee's avatar
Elliot Lee committed
230
{
231 232 233
  GtkButton *button;

  button = GTK_BUTTON (object);
Elliot Lee's avatar
Elliot Lee committed
234

235 236
  switch (arg_id)
    {
237
      GtkWidget *child;
238

239
    case ARG_LABEL:
240 241 242 243 244 245 246
      child = GTK_BIN (button)->child;
      if (!child)
	child = gtk_widget_new (GTK_TYPE_LABEL,
				"visible", TRUE,
				"parent", button,
				NULL);
      if (GTK_IS_LABEL (child))
Owen Taylor's avatar
Owen Taylor committed
247
	gtk_label_set_text (GTK_LABEL (child),
248
		       GTK_VALUE_STRING (*arg) ? GTK_VALUE_STRING (*arg) : "");
249
      break;
250 251 252
    case ARG_RELIEF:
      gtk_button_set_relief (button, GTK_VALUE_ENUM (*arg));
      break;
253 254 255 256 257 258
    default:
      break;
    }
}

static void
259
gtk_button_get_arg (GtkObject *object,
260 261 262
		    GtkArg    *arg,
		    guint      arg_id)
{
263 264 265 266
  GtkButton *button;

  button = GTK_BUTTON (object);

267 268 269
  switch (arg_id)
    {
    case ARG_LABEL:
270 271
      if (GTK_BIN (button)->child && GTK_IS_LABEL (GTK_BIN (button)->child))
	GTK_VALUE_STRING (*arg) = g_strdup (GTK_LABEL (GTK_BIN (button)->child)->label);
272 273 274
      else
	GTK_VALUE_STRING (*arg) = NULL;
      break;
275 276 277
    case ARG_RELIEF:
      GTK_VALUE_ENUM (*arg) = gtk_button_get_relief (button);
      break;
Tim Janik's avatar
Tim Janik committed
278 279 280
    default:
      arg->type = GTK_TYPE_INVALID;
      break;
Elliot Lee's avatar
Elliot Lee committed
281 282 283 284
    }
}

GtkWidget*
285
gtk_button_new (void)
Elliot Lee's avatar
Elliot Lee committed
286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308
{
  return GTK_WIDGET (gtk_type_new (gtk_button_get_type ()));
}

GtkWidget*
gtk_button_new_with_label (const gchar *label)
{
  GtkWidget *button;
  GtkWidget *label_widget;

  button = gtk_button_new ();
  label_widget = gtk_label_new (label);
  gtk_misc_set_alignment (GTK_MISC (label_widget), 0.5, 0.5);

  gtk_container_add (GTK_CONTAINER (button), label_widget);
  gtk_widget_show (label_widget);

  return button;
}

void
gtk_button_pressed (GtkButton *button)
{
309 310 311
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

Elliot Lee's avatar
Elliot Lee committed
312 313 314 315 316 317
  gtk_signal_emit (GTK_OBJECT (button), button_signals[PRESSED]);
}

void
gtk_button_released (GtkButton *button)
{
318 319 320
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

Elliot Lee's avatar
Elliot Lee committed
321 322 323 324 325 326
  gtk_signal_emit (GTK_OBJECT (button), button_signals[RELEASED]);
}

void
gtk_button_clicked (GtkButton *button)
{
327 328 329
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

Elliot Lee's avatar
Elliot Lee committed
330 331 332 333 334 335
  gtk_signal_emit (GTK_OBJECT (button), button_signals[CLICKED]);
}

void
gtk_button_enter (GtkButton *button)
{
336 337 338
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

Elliot Lee's avatar
Elliot Lee committed
339 340 341 342 343 344
  gtk_signal_emit (GTK_OBJECT (button), button_signals[ENTER]);
}

void
gtk_button_leave (GtkButton *button)
{
345 346 347
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

Elliot Lee's avatar
Elliot Lee committed
348 349 350
  gtk_signal_emit (GTK_OBJECT (button), button_signals[LEAVE]);
}

351 352 353 354 355 356 357 358
void
gtk_button_set_relief (GtkButton *button,
		       GtkReliefStyle newrelief)
{
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

  button->relief = newrelief;
359
  gtk_widget_queue_draw (GTK_WIDGET (button));
360 361 362
}

GtkReliefStyle
363
gtk_button_get_relief (GtkButton *button)
364 365 366 367 368 369 370
{
  g_return_val_if_fail (button != NULL, GTK_RELIEF_NORMAL);
  g_return_val_if_fail (GTK_IS_BUTTON (button), GTK_RELIEF_NORMAL);

  return button->relief;
}

Elliot Lee's avatar
Elliot Lee committed
371 372 373 374 375 376
static void
gtk_button_realize (GtkWidget *widget)
{
  GtkButton *button;
  GdkWindowAttr attributes;
  gint attributes_mask;
Owen Taylor's avatar
Owen Taylor committed
377
  gint border_width;
Elliot Lee's avatar
Elliot Lee committed
378 379 380 381 382 383 384

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_BUTTON (widget));

  button = GTK_BUTTON (widget);
  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);

Owen Taylor's avatar
Owen Taylor committed
385 386
  border_width = GTK_CONTAINER (widget)->border_width;

Elliot Lee's avatar
Elliot Lee committed
387
  attributes.window_type = GDK_WINDOW_CHILD;
Owen Taylor's avatar
Owen Taylor committed
388 389 390 391
  attributes.x = widget->allocation.x + border_width;
  attributes.y = widget->allocation.y + border_width;
  attributes.width = widget->allocation.width - border_width * 2;
  attributes.height = widget->allocation.height - border_width * 2;
Elliot Lee's avatar
Elliot Lee committed
392 393 394 395 396 397 398 399 400 401 402 403
  attributes.wclass = GDK_INPUT_OUTPUT;
  attributes.visual = gtk_widget_get_visual (widget);
  attributes.colormap = gtk_widget_get_colormap (widget);
  attributes.event_mask = gtk_widget_get_events (widget);
  attributes.event_mask |= (GDK_EXPOSURE_MASK |
			    GDK_BUTTON_PRESS_MASK |
			    GDK_BUTTON_RELEASE_MASK |
			    GDK_ENTER_NOTIFY_MASK |
			    GDK_LEAVE_NOTIFY_MASK);

  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;

404
  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
Elliot Lee's avatar
Elliot Lee committed
405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435
  gdk_window_set_user_data (widget->window, button);

  widget->style = gtk_style_attach (widget->style, widget->window);
  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
}

static void
gtk_button_size_request (GtkWidget      *widget,
			 GtkRequisition *requisition)
{
  GtkButton *button;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_BUTTON (widget));
  g_return_if_fail (requisition != NULL);

  button = GTK_BUTTON (widget);

  requisition->width = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING +
			GTK_WIDGET (widget)->style->klass->xthickness) * 2;
  requisition->height = (GTK_CONTAINER (widget)->border_width + CHILD_SPACING +
			 GTK_WIDGET (widget)->style->klass->ythickness) * 2;

  if (GTK_WIDGET_CAN_DEFAULT (widget))
    {
      requisition->width += (GTK_WIDGET (widget)->style->klass->xthickness * 2 +
			     DEFAULT_SPACING);
      requisition->height += (GTK_WIDGET (widget)->style->klass->ythickness * 2 +
			      DEFAULT_SPACING);
    }

436
  if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
Elliot Lee's avatar
Elliot Lee committed
437
    {
438
      gtk_widget_size_request (GTK_BIN (button)->child, &GTK_BIN (button)->child->requisition);
Elliot Lee's avatar
Elliot Lee committed
439

440 441
      requisition->width += GTK_BIN (button)->child->requisition.width;
      requisition->height += GTK_BIN (button)->child->requisition.height;
Elliot Lee's avatar
Elliot Lee committed
442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468
    }
}

static void
gtk_button_size_allocate (GtkWidget     *widget,
			  GtkAllocation *allocation)
{
  GtkButton *button;
  GtkAllocation child_allocation;
  gint border_width;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_BUTTON (widget));
  g_return_if_fail (allocation != NULL);

  widget->allocation = *allocation;
  border_width = GTK_CONTAINER (widget)->border_width;

  if (GTK_WIDGET_REALIZED (widget))
    gdk_window_move_resize (widget->window,
			    widget->allocation.x + border_width,
			    widget->allocation.y + border_width,
			    widget->allocation.width - border_width * 2,
			    widget->allocation.height - border_width * 2);

  button = GTK_BUTTON (widget);

469
  if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
Elliot Lee's avatar
Elliot Lee committed
470 471 472 473
    {
      child_allocation.x = (CHILD_SPACING + GTK_WIDGET (widget)->style->klass->xthickness);
      child_allocation.y = (CHILD_SPACING + GTK_WIDGET (widget)->style->klass->ythickness);

474
      child_allocation.width = MAX (1, (gint)widget->allocation.width - child_allocation.x * 2 -
Owen Taylor's avatar
Owen Taylor committed
475
	                         border_width * 2);
476
      child_allocation.height = MAX (1, (gint)widget->allocation.height - child_allocation.y * 2 -
Owen Taylor's avatar
Owen Taylor committed
477
	                          border_width * 2);
Elliot Lee's avatar
Elliot Lee committed
478 479 480 481 482 483 484

      if (GTK_WIDGET_CAN_DEFAULT (button))
	{
	  child_allocation.x += (GTK_WIDGET (widget)->style->klass->xthickness +
				 DEFAULT_LEFT_POS);
	  child_allocation.y += (GTK_WIDGET (widget)->style->klass->ythickness +
				 DEFAULT_TOP_POS);
485 486 487 488
	  child_allocation.width =  MAX (1, (gint)child_allocation.width -
					 (gint)(GTK_WIDGET (widget)->style->klass->xthickness * 2 + DEFAULT_SPACING));
	  child_allocation.height = MAX (1, (gint)child_allocation.height -
					 (gint)(GTK_WIDGET (widget)->style->klass->xthickness * 2 + DEFAULT_SPACING));
Elliot Lee's avatar
Elliot Lee committed
489 490
	}

491
      gtk_widget_size_allocate (GTK_BIN (button)->child, &child_allocation);
Elliot Lee's avatar
Elliot Lee committed
492 493 494
    }
}

495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520
/*
 * +------------------------------------------------+
 * |                   BORDER                       |
 * |  +------------------------------------------+  |
 * |  |\\\\\\\\\\\\\\\\DEFAULT\\\\\\\\\\\\\\\\\  |  |
 * |  |\\+------------------------------------+  |  |
 * |  |\\| |           SPACING       3      | |  |  |
 * |  |\\| +--------------------------------+ |  |  |
 * |  |\\| |########## FOCUS ###############| |  |  |
 * |  |\\| |#+----------------------------+#| |  |  |
 * |  |\\| |#|         RELIEF            \|#| |  |  |
 * |  |\\| |#|  +-----------------------+\|#| |  |  |
 * |  |\\|1|#|  +     THE TEXT          +\|#|2|  |  |
 * |  |\\| |#|  +-----------------------+\|#| |  |  |
 * |  |\\| |#| \\\\\ ythickness \\\\\\\\\\|#| |  |  |
 * |  |\\| |#+----------------------------+#| |  |  |
 * |  |\\| |########### 1 ##################| |  |  |
 * |  |\\| +--------------------------------+ |  |  |
 * |  |\\| |        default spacing   4     | |  |  |
 * |  |\\+------------------------------------+  |  |
 * |  |\            ythickness                   |  |
 * |  +------------------------------------------+  |
 * |                border_width                    |
 * +------------------------------------------------+
 */

Elliot Lee's avatar
Elliot Lee committed
521 522 523 524 525 526 527 528
static void
gtk_button_paint (GtkWidget    *widget,
		  GdkRectangle *area)
{
  GtkButton *button;
  GtkShadowType shadow_type;
  gint width, height;
  gint x, y;
529
   
Elliot Lee's avatar
Elliot Lee committed
530 531 532
  if (GTK_WIDGET_DRAWABLE (widget))
    {
      button = GTK_BUTTON (widget);
533
	
Elliot Lee's avatar
Elliot Lee committed
534 535 536 537 538
      x = 0;
      y = 0;
      width = widget->allocation.width - GTK_CONTAINER (widget)->border_width * 2;
      height = widget->allocation.height - GTK_CONTAINER (widget)->border_width * 2;

539 540 541 542 543 544 545 546 547 548 549 550
      gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
      gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);

      if (GTK_WIDGET_HAS_DEFAULT (widget) &&
	  GTK_BUTTON (widget)->relief == GTK_RELIEF_NORMAL)
	{
	  gtk_paint_box (widget->style, widget->window,
			 GTK_STATE_NORMAL, GTK_SHADOW_IN,
			 area, widget, "buttondefault",
			 x, y, width, height);
	}

Elliot Lee's avatar
Elliot Lee committed
551 552 553 554 555 556 557 558 559
      if (GTK_WIDGET_CAN_DEFAULT (widget))
	{
	  x += widget->style->klass->xthickness;
	  y += widget->style->klass->ythickness;
	  width -= 2 * x + DEFAULT_SPACING;
	  height -= 2 * y + DEFAULT_SPACING;
	  x += DEFAULT_LEFT_POS;
	  y += DEFAULT_TOP_POS;
	}
560
       
Elliot Lee's avatar
Elliot Lee committed
561 562 563 564 565 566 567
      if (GTK_WIDGET_HAS_FOCUS (widget))
	{
	  x += 1;
	  y += 1;
	  width -= 2;
	  height -= 2;
	}
568
	
Elliot Lee's avatar
Elliot Lee committed
569 570 571 572 573
      if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
	shadow_type = GTK_SHADOW_IN;
      else
	shadow_type = GTK_SHADOW_OUT;

574 575 576 577 578 579 580 581
      if ((button->relief != GTK_RELIEF_NONE) ||
	  ((GTK_WIDGET_STATE(widget) != GTK_STATE_NORMAL) &&
	   (GTK_WIDGET_STATE(widget) != GTK_STATE_INSENSITIVE)))
	gtk_paint_box (widget->style, widget->window,
		       GTK_WIDGET_STATE (widget),
		       shadow_type, area, widget, "button",
		       x, y, width, height);
       
Elliot Lee's avatar
Elliot Lee committed
582 583 584 585 586 587
      if (GTK_WIDGET_HAS_FOCUS (widget))
	{
	  x -= 1;
	  y -= 1;
	  width += 2;
	  height += 2;
588 589 590 591
	     
	  gtk_paint_focus (widget->style, widget->window,
			   area, widget, "button",
			   x, y, width - 1, height - 1);
Elliot Lee's avatar
Elliot Lee committed
592 593 594 595 596
	}
    }
}

static void
597 598
gtk_button_draw (GtkWidget    *widget,
		 GdkRectangle *area)
Elliot Lee's avatar
Elliot Lee committed
599
{
600 601 602
  GtkButton *button;
  GdkRectangle child_area;
  GdkRectangle tmp_area;
Elliot Lee's avatar
Elliot Lee committed
603 604 605

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_BUTTON (widget));
606
  g_return_if_fail (area != NULL);
Elliot Lee's avatar
Elliot Lee committed
607 608 609

  if (GTK_WIDGET_DRAWABLE (widget))
    {
610
      button = GTK_BUTTON (widget);
Elliot Lee's avatar
Elliot Lee committed
611

612 613 614 615 616 617 618 619
      tmp_area = *area;
      tmp_area.x -= GTK_CONTAINER (button)->border_width;
      tmp_area.y -= GTK_CONTAINER (button)->border_width;

      gtk_button_paint (widget, &tmp_area);

      if (GTK_BIN (button)->child && gtk_widget_intersect (GTK_BIN (button)->child, &tmp_area, &child_area))
	gtk_widget_draw (GTK_BIN (button)->child, &child_area);
Elliot Lee's avatar
Elliot Lee committed
620 621 622
    }
}

623 624 625 626 627 628 629 630 631 632 633 634
static void
gtk_button_draw_focus (GtkWidget *widget)
{
  gtk_widget_draw (widget, NULL);
}

static void
gtk_button_draw_default (GtkWidget *widget)
{
  gtk_widget_draw (widget, NULL);
}

Elliot Lee's avatar
Elliot Lee committed
635 636 637 638
static gint
gtk_button_expose (GtkWidget      *widget,
		   GdkEventExpose *event)
{
Owen Taylor's avatar
Owen Taylor committed
639
  GtkButton *bin;
Elliot Lee's avatar
Elliot Lee committed
640 641 642 643 644 645 646 647
  GdkEventExpose child_event;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  if (GTK_WIDGET_DRAWABLE (widget))
    {
Owen Taylor's avatar
Owen Taylor committed
648
      bin = GTK_BIN (widget);
649
      
Elliot Lee's avatar
Elliot Lee committed
650 651 652
      gtk_button_paint (widget, &event->area);

      child_event = *event;
Owen Taylor's avatar
Owen Taylor committed
653 654 655
      if (bin->child && GTK_WIDGET_NO_WINDOW (bin->child) &&
	  gtk_widget_intersect (bin->child, &event->area, &child_event.area))
	gtk_widget_event (bin->child, (GdkEvent*) &child_event);
Elliot Lee's avatar
Elliot Lee committed
656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792
    }

  return FALSE;
}

static gint
gtk_button_button_press (GtkWidget      *widget,
			 GdkEventButton *event)
{
  GtkButton *button;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  if (event->type == GDK_BUTTON_PRESS)
    {
      button = GTK_BUTTON (widget);

      if (GTK_WIDGET_CAN_DEFAULT (widget) && (event->button == 1))
	gtk_widget_grab_default (widget);
      if (!GTK_WIDGET_HAS_FOCUS (widget))
	gtk_widget_grab_focus (widget);

      if (event->button == 1)
	{
	  gtk_grab_add (GTK_WIDGET (button));
	  gtk_button_pressed (button);
	}
    }

  return TRUE;
}

static gint
gtk_button_button_release (GtkWidget      *widget,
			   GdkEventButton *event)
{
  GtkButton *button;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  if (event->button == 1)
    {
      button = GTK_BUTTON (widget);
      gtk_grab_remove (GTK_WIDGET (button));
      gtk_button_released (button);
    }

  return TRUE;
}

static gint
gtk_button_enter_notify (GtkWidget        *widget,
			 GdkEventCrossing *event)
{
  GtkButton *button;
  GtkWidget *event_widget;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  button = GTK_BUTTON (widget);
  event_widget = gtk_get_event_widget ((GdkEvent*) event);

  if ((event_widget == widget) &&
      (event->detail != GDK_NOTIFY_INFERIOR))
    {
      button->in_button = TRUE;
      gtk_button_enter (button);
    }

  return FALSE;
}

static gint
gtk_button_leave_notify (GtkWidget        *widget,
			 GdkEventCrossing *event)
{
  GtkButton *button;
  GtkWidget *event_widget;

  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  button = GTK_BUTTON (widget);
  event_widget = gtk_get_event_widget ((GdkEvent*) event);

  if ((event_widget == widget) &&
      (event->detail != GDK_NOTIFY_INFERIOR))
    {
      button->in_button = FALSE;
      gtk_button_leave (button);
    }

  return FALSE;
}

static gint
gtk_button_focus_in (GtkWidget     *widget,
		     GdkEventFocus *event)
{
  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
  gtk_widget_draw_focus (widget);

  return FALSE;
}

static gint
gtk_button_focus_out (GtkWidget     *widget,
		      GdkEventFocus *event)
{
  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_BUTTON (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
  gtk_widget_draw_focus (widget);

  return FALSE;
}

static void
gtk_button_add (GtkContainer *container,
		GtkWidget    *widget)
{
  g_return_if_fail (container != NULL);
  g_return_if_fail (widget != NULL);

793 794
  if (GTK_CONTAINER_CLASS (parent_class)->add)
    GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
Elliot Lee's avatar
Elliot Lee committed
795

796
  GTK_BUTTON (container)->child = GTK_BIN (container)->child;
Elliot Lee's avatar
Elliot Lee committed
797 798 799 800 801 802 803
}

static void
gtk_button_remove (GtkContainer *container,
		   GtkWidget    *widget)
{
  g_return_if_fail (container != NULL);
Tim Janik's avatar
Tim Janik committed
804
  g_return_if_fail (widget != NULL);
Elliot Lee's avatar
Elliot Lee committed
805

806 807
  if (GTK_CONTAINER_CLASS (parent_class)->remove)
    GTK_CONTAINER_CLASS (parent_class)->remove (container, widget);
Elliot Lee's avatar
Elliot Lee committed
808

809
  GTK_BUTTON (container)->child = GTK_BIN (container)->child;
Elliot Lee's avatar
Elliot Lee committed
810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850
}

static void
gtk_real_button_pressed (GtkButton *button)
{
  GtkStateType new_state;

  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

  button->button_down = TRUE;

  new_state = (button->in_button ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);

  if (GTK_WIDGET_STATE (button) != new_state)
    {
      gtk_widget_set_state (GTK_WIDGET (button), new_state);
      gtk_widget_queue_draw (GTK_WIDGET (button));
    }
}

static void
gtk_real_button_released (GtkButton *button)
{
  GtkStateType new_state;

  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

  if (button->button_down)
    {
      button->button_down = FALSE;

      if (button->in_button)
	gtk_button_clicked (button);

      new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);

      if (GTK_WIDGET_STATE (button) != new_state)
	{
	  gtk_widget_set_state (GTK_WIDGET (button), new_state);
851 852 853 854
	  /* We _draw () instead of queue_draw so that if the operation
	   * blocks, the label doesn't vanish.
	   */
	  gtk_widget_draw (GTK_WIDGET (button), NULL);
Elliot Lee's avatar
Elliot Lee committed
855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887
	}
    }
}

static void
gtk_real_button_enter (GtkButton *button)
{
  GtkStateType new_state;

  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

  new_state = (button->button_down ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);

  if (GTK_WIDGET_STATE (button) != new_state)
    {
      gtk_widget_set_state (GTK_WIDGET (button), new_state);
      gtk_widget_queue_draw (GTK_WIDGET (button));
    }
}

static void
gtk_real_button_leave (GtkButton *button)
{
  g_return_if_fail (button != NULL);
  g_return_if_fail (GTK_IS_BUTTON (button));

  if (GTK_WIDGET_STATE (button) != GTK_STATE_NORMAL)
    {
      gtk_widget_set_state (GTK_WIDGET (button), GTK_STATE_NORMAL);
      gtk_widget_queue_draw (GTK_WIDGET (button));
    }
}