1 /* GTK - The GIMP Toolkit
3 * Copyright (C) 2007 John Stowers, Neil Jagdish Patel.
4 * Copyright (C) 2009 Bastien Nocera, David Zeuthen
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
21 * Code adapted from egg-spinner
22 * by Christian Hergert <christian.hergert@gmail.com>
26 * Modified by the GTK+ Team and others 2007. See the AUTHORS
27 * file for a list of people on the GTK+ Team. See the ChangeLog
28 * files for a list of changes. These files are distributed with
29 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
35 #include "gtkaccessible.h"
37 #include "gtkspinner.h"
44 * @Short_description: Show a spinner animation
46 * @See_also: #GtkCellRendererSpinner, #GtkProgressBar
48 * A GtkSpinner widget displays an icon-size spinning animation.
49 * It is often used as an alternative to a #GtkProgressBar for
50 * displaying indefinite activity, instead of actual progress.
52 * To start the animation, use gtk_spinner_start(), to stop it
53 * use gtk_spinner_stop().
57 #define GTK_SPINNER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_SPINNER, GtkSpinnerPrivate))
59 G_DEFINE_TYPE (GtkSpinner, gtk_spinner, GTK_TYPE_DRAWING_AREA);
66 struct _GtkSpinnerPrivate
75 static void gtk_spinner_class_init (GtkSpinnerClass *klass);
76 static void gtk_spinner_init (GtkSpinner *spinner);
77 static void gtk_spinner_dispose (GObject *gobject);
78 static void gtk_spinner_realize (GtkWidget *widget);
79 static void gtk_spinner_unrealize (GtkWidget *widget);
80 static gboolean gtk_spinner_expose (GtkWidget *widget,
81 GdkEventExpose *event);
82 static void gtk_spinner_screen_changed (GtkWidget *widget,
83 GdkScreen *old_screen);
84 static void gtk_spinner_style_set (GtkWidget *widget,
85 GtkStyle *prev_style);
86 static void gtk_spinner_get_property (GObject *object,
90 static void gtk_spinner_set_property (GObject *object,
94 static void gtk_spinner_set_active (GtkSpinner *spinner,
96 static AtkObject *gtk_spinner_get_accessible (GtkWidget *widget);
97 static GType gtk_spinner_accessible_get_type (void);
100 gtk_spinner_class_init (GtkSpinnerClass *klass)
102 GObjectClass *gobject_class;
103 GtkWidgetClass *widget_class;
105 gtk_spinner_parent_class = g_type_class_peek_parent (klass);
107 gobject_class = G_OBJECT_CLASS(klass);
108 g_type_class_add_private (gobject_class, sizeof (GtkSpinnerPrivate));
109 gobject_class->dispose = gtk_spinner_dispose;
110 gobject_class->get_property = gtk_spinner_get_property;
111 gobject_class->set_property = gtk_spinner_set_property;
113 widget_class = GTK_WIDGET_CLASS(klass);
114 widget_class->expose_event = gtk_spinner_expose;
115 widget_class->realize = gtk_spinner_realize;
116 widget_class->unrealize = gtk_spinner_unrealize;
117 widget_class->screen_changed = gtk_spinner_screen_changed;
118 widget_class->style_set = gtk_spinner_style_set;
119 widget_class->get_accessible = gtk_spinner_get_accessible;
121 /* GtkSpinner:active:
123 * Whether the spinner is active
127 g_object_class_install_property (gobject_class,
129 g_param_spec_boolean ("active",
131 P_("Whether the spinner is active"),
135 * GtkSpinner:num-steps:
137 * The number of steps for the spinner to complete a full loop.
138 * The animation will complete a full cycle in one second by default
139 * (see the #GtkSpinner:cycle-duration style property).
143 gtk_widget_class_install_style_property (widget_class,
144 g_param_spec_uint ("num-steps",
145 P_("Number of steps"),
146 P_("The number of steps for the spinner to complete a full loop. The animation will complete a full cycle in one second by default (see #GtkSpinner:cycle-duration)."),
153 * GtkSpinner:cycle-duration:
155 * The duration in milliseconds for the spinner to complete a full cycle.
159 gtk_widget_class_install_style_property (widget_class,
160 g_param_spec_uint ("cycle-duration",
161 P_("Animation duration"),
162 P_("The length of time in milliseconds for the spinner to complete a full loop"),
170 gtk_spinner_get_property (GObject *object,
175 GtkSpinnerPrivate *priv;
177 priv = GTK_SPINNER (object)->priv;
182 g_value_set_boolean (value, priv->active);
185 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
190 gtk_spinner_set_property (GObject *object,
198 gtk_spinner_set_active (GTK_SPINNER (object), g_value_get_boolean (value));
201 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
206 gtk_spinner_init (GtkSpinner *spinner)
208 GtkSpinnerPrivate *priv;
210 priv = GTK_SPINNER_GET_PRIVATE (spinner);
214 spinner->priv = priv;
216 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW);
220 gtk_spinner_expose (GtkWidget *widget, GdkEventExpose *event)
222 GtkStateType state_type;
223 GtkSpinnerPrivate *priv;
226 priv = GTK_SPINNER (widget)->priv;
228 width = widget->allocation.width;
229 height = widget->allocation.height;
231 if ((width < 12) || (height <12))
232 gtk_widget_set_size_request (widget, 12, 12);
234 state_type = GTK_STATE_NORMAL;
235 if (!GTK_WIDGET_IS_SENSITIVE (widget))
236 state_type = GTK_STATE_INSENSITIVE;
238 gtk_paint_spinner (widget->style,
242 event->area.x, event->area.y,
243 event->area.width, event->area.height);
249 gtk_spinner_timeout (gpointer data)
251 GtkSpinnerPrivate *priv;
253 priv = GTK_SPINNER (data)->priv;
255 if (priv->current + 1 >= priv->num_steps)
260 gtk_widget_queue_draw (GTK_WIDGET (data));
266 gtk_spinner_add_timeout (GtkSpinner *spinner)
268 GtkSpinnerPrivate *priv;
270 priv = spinner->priv;
272 priv->timeout = gdk_threads_add_timeout ((guint) priv->cycle_duration / priv->num_steps, gtk_spinner_timeout, spinner);
276 gtk_spinner_remove_timeout (GtkSpinner *spinner)
278 GtkSpinnerPrivate *priv;
280 priv = spinner->priv;
282 g_source_remove (priv->timeout);
287 gtk_spinner_realize (GtkWidget *widget)
289 GtkSpinnerPrivate *priv;
291 priv = GTK_SPINNER (widget)->priv;
293 GTK_WIDGET_CLASS (gtk_spinner_parent_class)->realize (widget);
296 gtk_spinner_add_timeout (GTK_SPINNER (widget));
300 gtk_spinner_unrealize (GtkWidget *widget)
302 GtkSpinnerPrivate *priv;
304 priv = GTK_SPINNER (widget)->priv;
306 if (priv->timeout != 0)
308 gtk_spinner_remove_timeout (GTK_SPINNER (widget));
311 GTK_WIDGET_CLASS (gtk_spinner_parent_class)->unrealize (widget);
315 gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen)
318 GdkScreen* new_screen;
319 GdkColormap* colormap;
321 spinner = GTK_SPINNER (widget);
323 new_screen = gtk_widget_get_screen (widget);
324 colormap = gdk_screen_get_rgba_colormap (new_screen);
328 colormap = gdk_screen_get_rgb_colormap (new_screen);
331 gtk_widget_set_colormap (widget, colormap);
335 gtk_spinner_style_set (GtkWidget *widget,
336 GtkStyle *prev_style)
338 GtkSpinnerPrivate *priv;
340 priv = GTK_SPINNER (widget)->priv;
342 gtk_widget_style_get (GTK_WIDGET (widget),
343 "num-steps", &(priv->num_steps),
344 "cycle-duration", &(priv->cycle_duration),
347 if (priv->current > priv->num_steps)
352 gtk_spinner_dispose (GObject *gobject)
354 GtkSpinnerPrivate *priv;
356 priv = GTK_SPINNER (gobject)->priv;
358 if (priv->timeout != 0)
360 gtk_spinner_remove_timeout (GTK_SPINNER (gobject));
363 G_OBJECT_CLASS (gtk_spinner_parent_class)->dispose (gobject);
367 gtk_spinner_set_active (GtkSpinner *spinner, gboolean active)
369 GtkSpinnerPrivate *priv;
371 active = active != FALSE;
373 priv = GTK_SPINNER (spinner)->priv;
375 if (priv->active != active)
377 priv->active = active;
378 g_object_notify (G_OBJECT (spinner), "active");
380 if (active && GTK_WIDGET_REALIZED (GTK_WIDGET (spinner)) && priv->timeout == 0)
382 gtk_spinner_add_timeout (spinner);
384 else if (!active && priv->timeout != 0)
386 gtk_spinner_remove_timeout (spinner);
392 gtk_spinner_accessible_factory_get_accessible_type (void)
394 return gtk_spinner_accessible_get_type ();
398 gtk_spinner_accessible_new (GObject *obj)
400 AtkObject *accessible;
402 g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
404 accessible = g_object_new (gtk_spinner_accessible_get_type (), NULL);
405 atk_object_initialize (accessible, obj);
411 gtk_spinner_accessible_factory_create_accessible (GObject *obj)
413 return gtk_spinner_accessible_new (obj);
417 gtk_spinner_accessible_factory_class_init (AtkObjectFactoryClass *klass)
419 klass->create_accessible = gtk_spinner_accessible_factory_create_accessible;
420 klass->get_accessible_type = gtk_spinner_accessible_factory_get_accessible_type;
424 gtk_spinner_accessible_factory_get_type (void)
426 static GType type = 0;
430 const GTypeInfo tinfo =
432 sizeof (AtkObjectFactoryClass),
433 NULL, /* base_init */
434 NULL, /* base_finalize */
435 (GClassInitFunc) gtk_spinner_accessible_factory_class_init,
436 NULL, /* class_finalize */
437 NULL, /* class_data */
438 sizeof (AtkObjectFactory),
443 type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
444 I_("GtkSpinnerAccessibleFactory"),
450 static AtkObjectClass *a11y_parent_class = NULL;
453 gtk_spinner_accessible_initialize (AtkObject *accessible,
456 atk_object_set_name (accessible, _("Spinner"));
457 atk_object_set_description (accessible, _("Provides visual status"));
459 a11y_parent_class->initialize (accessible, widget);
463 gtk_spinner_accessible_class_init (AtkObjectClass *klass)
465 a11y_parent_class = g_type_class_peek_parent (klass);
467 klass->initialize = gtk_spinner_accessible_initialize;
471 gtk_spinner_accessible_image_get_size (AtkImage *image,
477 widget = GTK_ACCESSIBLE (image)->widget;
480 *width = *height = 0;
484 *width = widget->allocation.width;
485 *height = widget->allocation.height;
490 gtk_spinner_accessible_image_interface_init (AtkImageIface *iface)
492 iface->get_image_size = gtk_spinner_accessible_image_get_size;
496 gtk_spinner_accessible_get_type (void)
498 static GType type = 0;
502 if (G_UNLIKELY (type == 0))
504 const GInterfaceInfo atk_image_info = {
505 (GInterfaceInitFunc) gtk_spinner_accessible_image_interface_init,
506 (GInterfaceFinalizeFunc) NULL,
510 GType parent_atk_type;
511 GTypeInfo tinfo = { 0 };
513 AtkObjectFactory *factory;
515 if ((type = g_type_from_name ("GtkSpinnerAccessible")))
518 factory = atk_registry_get_factory (atk_get_default_registry (),
521 return G_TYPE_INVALID;
523 parent_atk_type = atk_object_factory_get_accessible_type (factory);
524 if (!parent_atk_type)
525 return G_TYPE_INVALID;
528 * Figure out the size of the class and instance
529 * we are deriving from
531 g_type_query (parent_atk_type, &query);
533 tinfo.class_init = (GClassInitFunc) gtk_spinner_accessible_class_init;
534 tinfo.class_size = query.class_size;
535 tinfo.instance_size = query.instance_size;
537 /* Register the type */
538 type = g_type_register_static (parent_atk_type,
539 "GtkSpinnerAccessible",
542 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
550 gtk_spinner_get_accessible (GtkWidget *widget)
552 static gboolean first_time = TRUE;
556 AtkObjectFactory *factory;
557 AtkRegistry *registry;
559 GType derived_atk_type;
562 * Figure out whether accessibility is enabled by looking at the
563 * type of the accessible object which would be created for
564 * the parent type of GtkSpinner.
566 derived_type = g_type_parent (GTK_TYPE_SPINNER);
568 registry = atk_get_default_registry ();
569 factory = atk_registry_get_factory (registry,
571 derived_atk_type = atk_object_factory_get_accessible_type (factory);
572 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
573 atk_registry_set_factory_type (registry,
575 gtk_spinner_accessible_factory_get_type ());
578 return GTK_WIDGET_CLASS (gtk_spinner_parent_class)->get_accessible (widget);
584 * Returns a new spinner widget. Not yet started.
586 * Return value: a new #GtkSpinner
591 gtk_spinner_new (void)
593 return g_object_new (GTK_TYPE_SPINNER, NULL);
598 * @spinner: a #GtkSpinner
600 * Starts the animation of the spinner.
605 gtk_spinner_start (GtkSpinner *spinner)
607 g_return_if_fail (GTK_IS_SPINNER (spinner));
609 gtk_spinner_set_active (spinner, TRUE);
614 * @spinner: a #GtkSpinner
616 * Stops the animation of the spinner.
621 gtk_spinner_stop (GtkSpinner *spinner)
623 g_return_if_fail (GTK_IS_SPINNER (spinner));
625 gtk_spinner_set_active (spinner, FALSE);
628 #define __GTK_SPINNER_C__
629 #include "gtkaliasdef.c"