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,
95 static AtkObject *gtk_spinner_get_accessible (GtkWidget *widget);
96 static GType gtk_spinner_accessible_get_type (void);
99 gtk_spinner_class_init (GtkSpinnerClass *klass)
101 GObjectClass *gobject_class;
102 GtkWidgetClass *widget_class;
104 gtk_spinner_parent_class = g_type_class_peek_parent (klass);
106 gobject_class = G_OBJECT_CLASS(klass);
107 g_type_class_add_private (gobject_class, sizeof (GtkSpinnerPrivate));
108 gobject_class->dispose = gtk_spinner_dispose;
109 gobject_class->get_property = gtk_spinner_get_property;
110 gobject_class->set_property = gtk_spinner_set_property;
112 widget_class = GTK_WIDGET_CLASS(klass);
113 widget_class->expose_event = gtk_spinner_expose;
114 widget_class->realize = gtk_spinner_realize;
115 widget_class->unrealize = gtk_spinner_unrealize;
116 widget_class->screen_changed = gtk_spinner_screen_changed;
117 widget_class->style_set = gtk_spinner_style_set;
118 widget_class->get_accessible = gtk_spinner_get_accessible;
120 /* GtkSpinner:active:
122 * Whether the spinner is active
126 g_object_class_install_property (gobject_class,
128 g_param_spec_boolean ("active",
130 P_("Whether the spinner is active"),
134 * GtkSpinner:num-steps:
136 * The number of steps for the spinner to complete a full loop.
137 * The animation will complete a full cycle in one second by default
138 * (see the #GtkSpinner:cycle-duration style property).
142 gtk_widget_class_install_style_property (widget_class,
143 g_param_spec_uint ("num-steps",
144 P_("Number of steps"),
145 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)."),
152 * GtkSpinner:cycle-duration:
154 * The duration in milliseconds for the spinner to complete a full cycle.
158 gtk_widget_class_install_style_property (widget_class,
159 g_param_spec_uint ("cycle-duration",
160 P_("Animation duration"),
161 P_("The length of time in milliseconds for the spinner to complete a full loop"),
169 gtk_spinner_get_property (GObject *object,
174 GtkSpinnerPrivate *priv;
176 priv = GTK_SPINNER_GET_PRIVATE (object);
181 g_value_set_boolean (value, priv->active);
184 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
189 gtk_spinner_set_property (GObject *object,
197 if (g_value_get_boolean (value))
198 gtk_spinner_start (GTK_SPINNER (object));
200 gtk_spinner_stop (GTK_SPINNER (object));
203 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
208 gtk_spinner_init (GtkSpinner *spinner)
210 GtkSpinnerPrivate *priv;
212 priv = GTK_SPINNER_GET_PRIVATE (spinner);
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_GET_PRIVATE (widget);
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_realize (GtkWidget *widget)
251 GtkSpinnerPrivate *priv;
253 priv = GTK_SPINNER_GET_PRIVATE (widget);
255 GTK_WIDGET_CLASS (gtk_spinner_parent_class)->realize (widget);
258 gtk_spinner_start (GTK_SPINNER (widget));
262 gtk_spinner_unrealize (GtkWidget *widget)
264 GtkSpinnerPrivate *priv;
266 priv = GTK_SPINNER_GET_PRIVATE (widget);
268 if (priv->timeout != 0)
270 g_source_remove (priv->timeout);
274 GTK_WIDGET_CLASS (gtk_spinner_parent_class)->unrealize (widget);
278 gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen)
281 GdkScreen* new_screen;
282 GdkColormap* colormap;
284 spinner = GTK_SPINNER(widget);
286 new_screen = gtk_widget_get_screen (widget);
287 colormap = gdk_screen_get_rgba_colormap (new_screen);
291 colormap = gdk_screen_get_rgb_colormap (new_screen);
294 gtk_widget_set_colormap (widget, colormap);
298 gtk_spinner_style_set (GtkWidget *widget,
299 GtkStyle *prev_style)
301 GtkSpinnerPrivate *priv;
303 priv = GTK_SPINNER_GET_PRIVATE (widget);
305 gtk_widget_style_get (GTK_WIDGET (widget),
306 "num-steps", &(priv->num_steps),
307 "cycle-duration", &(priv->cycle_duration),
310 if (priv->current > priv->num_steps)
315 gtk_spinner_timeout (gpointer data)
317 GtkSpinnerPrivate *priv;
319 priv = GTK_SPINNER_GET_PRIVATE (data);
321 if (priv->current + 1 >= priv->num_steps)
326 gtk_widget_queue_draw (GTK_WIDGET (data));
331 gtk_spinner_dispose (GObject *gobject)
333 GtkSpinnerPrivate *priv;
335 priv = GTK_SPINNER_GET_PRIVATE (gobject);
337 if (priv->timeout != 0)
339 g_source_remove (priv->timeout);
343 G_OBJECT_CLASS (gtk_spinner_parent_class)->dispose (gobject);
347 gtk_spinner_accessible_factory_get_accessible_type (void)
349 return gtk_spinner_accessible_get_type ();
353 gtk_spinner_accessible_new (GObject *obj)
355 AtkObject *accessible;
357 g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
359 accessible = g_object_new (gtk_spinner_accessible_get_type (), NULL);
360 atk_object_initialize (accessible, obj);
366 gtk_spinner_accessible_factory_create_accessible (GObject *obj)
368 return gtk_spinner_accessible_new (obj);
372 gtk_spinner_accessible_factory_class_init (AtkObjectFactoryClass *klass)
374 klass->create_accessible = gtk_spinner_accessible_factory_create_accessible;
375 klass->get_accessible_type = gtk_spinner_accessible_factory_get_accessible_type;
379 gtk_spinner_accessible_factory_get_type (void)
381 static GType type = 0;
385 const GTypeInfo tinfo =
387 sizeof (AtkObjectFactoryClass),
388 NULL, /* base_init */
389 NULL, /* base_finalize */
390 (GClassInitFunc) gtk_spinner_accessible_factory_class_init,
391 NULL, /* class_finalize */
392 NULL, /* class_data */
393 sizeof (AtkObjectFactory),
398 type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
399 I_("GtkSpinnerAccessibleFactory"),
405 static AtkObjectClass *a11y_parent_class = NULL;
408 gtk_spinner_accessible_initialize (AtkObject *accessible,
411 atk_object_set_name (accessible, _("Spinner"));
412 atk_object_set_description (accessible, _("Provides visual status"));
414 a11y_parent_class->initialize (accessible, widget);
418 gtk_spinner_accessible_class_init (AtkObjectClass *klass)
420 a11y_parent_class = g_type_class_peek_parent (klass);
422 klass->initialize = gtk_spinner_accessible_initialize;
426 gtk_spinner_accessible_image_get_size (AtkImage *image,
432 widget = GTK_ACCESSIBLE (image)->widget;
435 *width = *height = 0;
439 *width = widget->allocation.width;
440 *height = widget->allocation.height;
445 gtk_spinner_accessible_image_interface_init (AtkImageIface *iface)
447 iface->get_image_size = gtk_spinner_accessible_image_get_size;
451 gtk_spinner_accessible_get_type (void)
453 static GType type = 0;
457 if (G_UNLIKELY (type == 0))
459 const GInterfaceInfo atk_image_info = {
460 (GInterfaceInitFunc) gtk_spinner_accessible_image_interface_init,
461 (GInterfaceFinalizeFunc) NULL,
465 GType parent_atk_type;
466 GTypeInfo tinfo = { 0 };
468 AtkObjectFactory *factory;
470 if ((type = g_type_from_name ("GtkSpinnerAccessible")))
473 factory = atk_registry_get_factory (atk_get_default_registry (),
476 return G_TYPE_INVALID;
478 parent_atk_type = atk_object_factory_get_accessible_type (factory);
479 if (!parent_atk_type)
480 return G_TYPE_INVALID;
483 * Figure out the size of the class and instance
484 * we are deriving from
486 g_type_query (parent_atk_type, &query);
488 tinfo.class_init = (GClassInitFunc) gtk_spinner_accessible_class_init;
489 tinfo.class_size = query.class_size;
490 tinfo.instance_size = query.instance_size;
492 /* Register the type */
493 type = g_type_register_static (parent_atk_type,
494 "GtkSpinnerAccessible",
497 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
505 gtk_spinner_get_accessible (GtkWidget *widget)
507 static gboolean first_time = TRUE;
511 AtkObjectFactory *factory;
512 AtkRegistry *registry;
514 GType derived_atk_type;
517 * Figure out whether accessibility is enabled by looking at the
518 * type of the accessible object which would be created for
519 * the parent type of GtkSpinner.
521 derived_type = g_type_parent (GTK_TYPE_SPINNER);
523 registry = atk_get_default_registry ();
524 factory = atk_registry_get_factory (registry,
526 derived_atk_type = atk_object_factory_get_accessible_type (factory);
527 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
528 atk_registry_set_factory_type (registry,
530 gtk_spinner_accessible_factory_get_type ());
533 return GTK_WIDGET_CLASS (gtk_spinner_parent_class)->get_accessible (widget);
539 * Returns a new spinner widget. Not yet started.
541 * Return value: a new #GtkSpinner
546 gtk_spinner_new (void)
548 return g_object_new (GTK_TYPE_SPINNER, NULL);
553 * @spinner: a #GtkSpinner
555 * Starts the animation of the spinner.
560 gtk_spinner_start (GtkSpinner *spinner)
562 GtkSpinnerPrivate *priv;
564 g_return_if_fail (GTK_IS_SPINNER (spinner));
566 priv = GTK_SPINNER_GET_PRIVATE (spinner);
569 g_object_notify (G_OBJECT (spinner), "active");
571 if (priv->timeout != 0)
573 if (!GTK_WIDGET_REALIZED (GTK_WIDGET (spinner)))
576 priv->timeout = gdk_threads_add_timeout ((guint) priv->cycle_duration / priv->num_steps, gtk_spinner_timeout, spinner);
581 * @spinner: a #GtkSpinner
583 * Stops the animation of the spinner.
588 gtk_spinner_stop (GtkSpinner *spinner)
590 GtkSpinnerPrivate *priv;
592 g_return_if_fail (GTK_IS_SPINNER (spinner));
594 priv = GTK_SPINNER_GET_PRIVATE (spinner);
596 priv->active = FALSE;
597 g_object_notify (G_OBJECT (spinner), "active");
599 if (priv->timeout == 0)
602 g_source_remove (priv->timeout);
606 #define __GTK_SPINNER_C__
607 #include "gtkaliasdef.c"