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
73 static void gtk_spinner_class_init (GtkSpinnerClass *klass);
74 static void gtk_spinner_init (GtkSpinner *spinner);
75 static void gtk_spinner_dispose (GObject *gobject);
76 static gboolean gtk_spinner_expose (GtkWidget *widget,
77 GdkEventExpose *event);
78 static void gtk_spinner_screen_changed (GtkWidget *widget,
79 GdkScreen *old_screen);
80 static void gtk_spinner_style_set (GtkWidget *widget,
81 GtkStyle *prev_style);
82 static void gtk_spinner_get_property (GObject *object,
86 static void gtk_spinner_set_property (GObject *object,
91 static AtkObject *gtk_spinner_get_accessible (GtkWidget *widget);
92 static GType gtk_spinner_accessible_get_type (void);
95 gtk_spinner_class_init (GtkSpinnerClass *klass)
97 GObjectClass *gobject_class;
98 GtkWidgetClass *widget_class;
100 gtk_spinner_parent_class = g_type_class_peek_parent (klass);
102 gobject_class = G_OBJECT_CLASS(klass);
103 g_type_class_add_private (gobject_class, sizeof (GtkSpinnerPrivate));
104 gobject_class->dispose = gtk_spinner_dispose;
105 gobject_class->get_property = gtk_spinner_get_property;
106 gobject_class->set_property = gtk_spinner_set_property;
108 widget_class = GTK_WIDGET_CLASS(klass);
109 widget_class->expose_event = gtk_spinner_expose;
110 widget_class->screen_changed = gtk_spinner_screen_changed;
111 widget_class->style_set = gtk_spinner_style_set;
112 widget_class->get_accessible = gtk_spinner_get_accessible;
114 /* GtkSpinner:active:
116 * Whether the spinner is active
120 g_object_class_install_property (gobject_class,
122 g_param_spec_boolean ("active",
124 P_("Whether the spinner is active"),
128 * GtkSpinner:num-steps:
130 * The number of steps for the spinner to complete a full loop.
131 * The animation will complete a full cycle in one second.
135 gtk_widget_class_install_style_property (widget_class,
136 g_param_spec_uint ("num-steps",
137 P_("Number of steps"),
138 P_("The number of steps for the spinner to complete a full loop. The animation will complete a full cycle in one second."),
146 gtk_spinner_get_property (GObject *object,
151 GtkSpinnerPrivate *priv;
153 priv = GTK_SPINNER_GET_PRIVATE (object);
158 g_value_set_boolean (value, priv->timeout != 0);
161 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
166 gtk_spinner_set_property (GObject *object,
174 if (g_value_get_boolean (value))
175 gtk_spinner_start (GTK_SPINNER (object));
177 gtk_spinner_stop (GTK_SPINNER (object));
180 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
185 gtk_spinner_init (GtkSpinner *spinner)
187 GtkSpinnerPrivate *priv;
189 priv = GTK_SPINNER_GET_PRIVATE (spinner);
193 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW);
197 gtk_spinner_expose (GtkWidget *widget, GdkEventExpose *event)
199 GtkStateType state_type;
200 GtkSpinnerPrivate *priv;
203 priv = GTK_SPINNER_GET_PRIVATE (widget);
205 width = widget->allocation.width;
206 height = widget->allocation.height;
208 if ((width < 12) || (height <12))
209 gtk_widget_set_size_request (widget, 12, 12);
211 state_type = GTK_STATE_NORMAL;
212 if (!GTK_WIDGET_IS_SENSITIVE (widget))
213 state_type = GTK_STATE_INSENSITIVE;
215 gtk_paint_spinner (widget->style,
219 event->area.x, event->area.y,
220 event->area.width, event->area.height);
226 gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen)
229 GdkScreen* new_screen;
230 GdkColormap* colormap;
232 spinner = GTK_SPINNER(widget);
234 new_screen = gtk_widget_get_screen (widget);
235 colormap = gdk_screen_get_rgba_colormap (new_screen);
239 colormap = gdk_screen_get_rgb_colormap (new_screen);
242 gtk_widget_set_colormap (widget, colormap);
246 gtk_spinner_style_set (GtkWidget *widget,
247 GtkStyle *prev_style)
249 GtkSpinnerPrivate *priv;
251 priv = GTK_SPINNER_GET_PRIVATE (widget);
253 gtk_widget_style_get (GTK_WIDGET (widget),
254 "num-steps", &(priv->num_steps),
257 if (priv->current > priv->num_steps)
262 gtk_spinner_timeout (gpointer data)
264 GtkSpinnerPrivate *priv;
266 priv = GTK_SPINNER_GET_PRIVATE (data);
268 if (priv->current + 1 >= priv->num_steps)
273 gtk_widget_queue_draw (GTK_WIDGET (data));
278 gtk_spinner_dispose (GObject *gobject)
280 GtkSpinnerPrivate *priv;
282 priv = GTK_SPINNER_GET_PRIVATE (gobject);
284 if (priv->timeout != 0)
286 g_source_remove (priv->timeout);
290 G_OBJECT_CLASS (gtk_spinner_parent_class)->dispose (gobject);
294 gtk_spinner_accessible_factory_get_accessible_type (void)
296 return gtk_spinner_accessible_get_type ();
300 gtk_spinner_accessible_new (GObject *obj)
302 AtkObject *accessible;
304 g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
306 accessible = g_object_new (gtk_spinner_accessible_get_type (), NULL);
307 atk_object_initialize (accessible, obj);
313 gtk_spinner_accessible_factory_create_accessible (GObject *obj)
315 return gtk_spinner_accessible_new (obj);
319 gtk_spinner_accessible_factory_class_init (AtkObjectFactoryClass *klass)
321 klass->create_accessible = gtk_spinner_accessible_factory_create_accessible;
322 klass->get_accessible_type = gtk_spinner_accessible_factory_get_accessible_type;
326 gtk_spinner_accessible_factory_get_type (void)
328 static GType type = 0;
332 const GTypeInfo tinfo =
334 sizeof (AtkObjectFactoryClass),
335 NULL, /* base_init */
336 NULL, /* base_finalize */
337 (GClassInitFunc) gtk_spinner_accessible_factory_class_init,
338 NULL, /* class_finalize */
339 NULL, /* class_data */
340 sizeof (AtkObjectFactory),
345 type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
346 I_("GtkSpinnerAccessibleFactory"),
352 static AtkObjectClass *a11y_parent_class = NULL;
355 gtk_spinner_accessible_initialize (AtkObject *accessible,
358 atk_object_set_name (accessible, _("Spinner"));
359 atk_object_set_description (accessible, _("Provides visual status"));
361 a11y_parent_class->initialize (accessible, widget);
365 gtk_spinner_accessible_class_init (AtkObjectClass *klass)
367 a11y_parent_class = g_type_class_peek_parent (klass);
369 klass->initialize = gtk_spinner_accessible_initialize;
373 gtk_spinner_accessible_image_get_size (AtkImage *image,
379 widget = GTK_ACCESSIBLE (image)->widget;
382 *width = *height = 0;
386 *width = widget->allocation.width;
387 *height = widget->allocation.height;
392 gtk_spinner_accessible_image_interface_init (AtkImageIface *iface)
394 iface->get_image_size = gtk_spinner_accessible_image_get_size;
398 gtk_spinner_accessible_get_type (void)
400 static GType type = 0;
404 if (G_UNLIKELY (type == 0))
406 const GInterfaceInfo atk_image_info = {
407 (GInterfaceInitFunc) gtk_spinner_accessible_image_interface_init,
408 (GInterfaceFinalizeFunc) NULL,
412 GType parent_atk_type;
413 GTypeInfo tinfo = { 0 };
415 AtkObjectFactory *factory;
417 if ((type = g_type_from_name ("GtkSpinnerAccessible")))
420 factory = atk_registry_get_factory (atk_get_default_registry (),
423 return G_TYPE_INVALID;
425 parent_atk_type = atk_object_factory_get_accessible_type (factory);
426 if (!parent_atk_type)
427 return G_TYPE_INVALID;
430 * Figure out the size of the class and instance
431 * we are deriving from
433 g_type_query (parent_atk_type, &query);
435 tinfo.class_init = (GClassInitFunc) gtk_spinner_accessible_class_init;
436 tinfo.class_size = query.class_size;
437 tinfo.instance_size = query.instance_size;
439 /* Register the type */
440 type = g_type_register_static (parent_atk_type,
441 "GtkSpinnerAccessible",
444 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
452 gtk_spinner_get_accessible (GtkWidget *widget)
454 static gboolean first_time = TRUE;
458 AtkObjectFactory *factory;
459 AtkRegistry *registry;
461 GType derived_atk_type;
464 * Figure out whether accessibility is enabled by looking at the
465 * type of the accessible object which would be created for
466 * the parent type of GtkSpinner.
468 derived_type = g_type_parent (GTK_TYPE_SPINNER);
470 registry = atk_get_default_registry ();
471 factory = atk_registry_get_factory (registry,
473 derived_atk_type = atk_object_factory_get_accessible_type (factory);
474 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
475 atk_registry_set_factory_type (registry,
477 gtk_spinner_accessible_factory_get_type ());
480 return GTK_WIDGET_CLASS (gtk_spinner_parent_class)->get_accessible (widget);
486 * Returns a new spinner widget. Not yet started.
488 * Return value: a new #GtkSpinner
493 gtk_spinner_new (void)
495 return g_object_new (GTK_TYPE_SPINNER, NULL);
500 * @spinner: a #GtkSpinner
502 * Starts the animation of the spinner.
507 gtk_spinner_start (GtkSpinner *spinner)
509 GtkSpinnerPrivate *priv;
511 g_return_if_fail (GTK_IS_SPINNER (spinner));
513 priv = GTK_SPINNER_GET_PRIVATE (spinner);
515 if (priv->timeout != 0)
518 priv->timeout = gdk_threads_add_timeout (1000 / priv->num_steps, gtk_spinner_timeout, spinner);
519 g_object_notify (G_OBJECT (spinner), "active");
524 * @spinner: a #GtkSpinner
526 * Stops the animation of the spinner.
531 gtk_spinner_stop (GtkSpinner *spinner)
533 GtkSpinnerPrivate *priv;
535 g_return_if_fail (GTK_IS_SPINNER (spinner));
537 priv = GTK_SPINNER_GET_PRIVATE (spinner);
538 if (priv->timeout == 0)
541 g_source_remove (priv->timeout);
543 g_object_notify (G_OBJECT (spinner), "active");
546 #define __GTK_SPINNER_C__
547 #include "gtkaliasdef.c"