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"
41 #define GTK_SPINNER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_SPINNER, GtkSpinnerPrivate))
43 G_DEFINE_TYPE (GtkSpinner, gtk_spinner, GTK_TYPE_DRAWING_AREA);
50 struct _GtkSpinnerPrivate
57 static void gtk_spinner_class_init (GtkSpinnerClass *klass);
58 static void gtk_spinner_init (GtkSpinner *spinner);
59 static void gtk_spinner_dispose (GObject *gobject);
60 static gboolean gtk_spinner_expose (GtkWidget *widget, GdkEventExpose *event);
61 static void gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen);
62 static void gtk_spinner_style_set (GtkWidget *widget, GtkStyle *prev_style);
63 static void gtk_spinner_get_property (GObject *object,
67 static void gtk_spinner_set_property (GObject *object,
71 static AtkObject *gtk_spinner_get_accessible (GtkWidget *widget);
72 static GType gtk_spinner_accessible_get_type (void);
75 gtk_spinner_class_init (GtkSpinnerClass *klass)
77 GObjectClass *gobject_class;
78 GtkWidgetClass *widget_class;
80 gtk_spinner_parent_class = g_type_class_peek_parent (klass);
82 gobject_class = G_OBJECT_CLASS(klass);
83 g_type_class_add_private (gobject_class, sizeof (GtkSpinnerPrivate));
84 gobject_class->dispose = gtk_spinner_dispose;
85 gobject_class->get_property = gtk_spinner_get_property;
86 gobject_class->set_property = gtk_spinner_set_property;
88 widget_class = GTK_WIDGET_CLASS(klass);
89 widget_class->expose_event = gtk_spinner_expose;
90 widget_class->screen_changed = gtk_spinner_screen_changed;
91 widget_class->style_set = gtk_spinner_style_set;
92 widget_class->get_accessible = gtk_spinner_get_accessible;
94 /* GtkSpinner::active:
96 * Whether the spinner is active
100 g_object_class_install_property (gobject_class,
102 g_param_spec_boolean ("active",
104 P_("Whether the spinner is active"),
108 * GtkSpinner::num-steps:
110 * The number of steps for the spinner to complete a full loop. The animation will
111 * complete a full revolution in one second.
115 gtk_widget_class_install_style_property (widget_class,
116 g_param_spec_uint ("num-steps",
117 P_("Number of steps"),
118 P_("The number of steps for the spinner to complete a full loop. The animation will complete a full revolution in one second."),
126 gtk_spinner_get_property (GObject *object,
131 GtkSpinnerPrivate *priv;
133 priv = GTK_SPINNER_GET_PRIVATE (object);
138 g_value_set_boolean (value, priv->timeout != 0);
141 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
146 gtk_spinner_set_property (GObject *object,
154 if (g_value_get_boolean (value))
155 gtk_spinner_start (GTK_SPINNER (object));
157 gtk_spinner_stop (GTK_SPINNER (object));
160 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
165 gtk_spinner_init (GtkSpinner *spinner)
167 GtkSpinnerPrivate *priv;
169 priv = GTK_SPINNER_GET_PRIVATE (spinner);
173 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW);
177 gtk_spinner_expose (GtkWidget *widget, GdkEventExpose *event)
179 GtkStateType state_type;
180 GtkSpinnerPrivate *priv;
183 priv = GTK_SPINNER_GET_PRIVATE (widget);
185 width = widget->allocation.width;
186 height = widget->allocation.height;
188 if ((width < 12) || (height <12))
189 gtk_widget_set_size_request (widget, 12, 12);
191 state_type = GTK_STATE_NORMAL;
192 if (!GTK_WIDGET_IS_SENSITIVE (widget))
193 state_type = GTK_STATE_INSENSITIVE;
195 gtk_paint_spinner (widget->style,
199 event->area.x, event->area.y,
200 event->area.width, event->area.height);
206 gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen)
209 GdkScreen* new_screen;
210 GdkColormap* colormap;
212 spinner = GTK_SPINNER(widget);
214 new_screen = gtk_widget_get_screen (widget);
215 colormap = gdk_screen_get_rgba_colormap (new_screen);
219 colormap = gdk_screen_get_rgb_colormap (new_screen);
222 gtk_widget_set_colormap (widget, colormap);
226 gtk_spinner_style_set (GtkWidget *widget,
227 GtkStyle *prev_style)
229 GtkSpinnerPrivate *priv;
231 priv = GTK_SPINNER_GET_PRIVATE (widget);
233 gtk_widget_style_get (GTK_WIDGET (widget),
234 "num-steps", &(priv->num_steps),
237 if (priv->current > priv->num_steps)
242 gtk_spinner_timeout (gpointer data)
244 GtkSpinnerPrivate *priv;
246 priv = GTK_SPINNER_GET_PRIVATE (data);
248 if (priv->current + 1 >= priv->num_steps)
257 gtk_widget_queue_draw (GTK_WIDGET (data));
262 gtk_spinner_dispose (GObject *gobject)
264 GtkSpinnerPrivate *priv;
266 priv = GTK_SPINNER_GET_PRIVATE (gobject);
268 if (priv->timeout != 0)
270 g_source_remove (priv->timeout);
274 G_OBJECT_CLASS (gtk_spinner_parent_class)->dispose (gobject);
278 gtk_spinner_accessible_factory_get_accessible_type (void)
280 return gtk_spinner_accessible_get_type ();
284 gtk_spinner_accessible_new (GObject *obj)
286 AtkObject *accessible;
288 g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
290 accessible = g_object_new (gtk_spinner_accessible_get_type (), NULL);
291 atk_object_initialize (accessible, obj);
297 gtk_spinner_accessible_factory_create_accessible (GObject *obj)
299 return gtk_spinner_accessible_new (obj);
303 gtk_spinner_accessible_factory_class_init (AtkObjectFactoryClass *klass)
305 klass->create_accessible = gtk_spinner_accessible_factory_create_accessible;
306 klass->get_accessible_type = gtk_spinner_accessible_factory_get_accessible_type;
310 gtk_spinner_accessible_factory_get_type (void)
312 static GType type = 0;
316 const GTypeInfo tinfo =
318 sizeof (AtkObjectFactoryClass),
319 NULL, /* base_init */
320 NULL, /* base_finalize */
321 (GClassInitFunc) gtk_spinner_accessible_factory_class_init,
322 NULL, /* class_finalize */
323 NULL, /* class_data */
324 sizeof (AtkObjectFactory),
329 type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
330 I_("GtkSpinnerAccessibleFactory"),
336 static AtkObjectClass *a11y_parent_class = NULL;
339 gtk_spinner_accessible_initialize (AtkObject *accessible,
342 atk_object_set_name (accessible, _("Spinner"));
343 atk_object_set_description (accessible, _("Provides visual status"));
345 a11y_parent_class->initialize (accessible, widget);
349 gtk_spinner_accessible_class_init (AtkObjectClass *klass)
351 a11y_parent_class = g_type_class_peek_parent (klass);
353 klass->initialize = gtk_spinner_accessible_initialize;
357 gtk_spinner_accessible_image_get_size (AtkImage *image,
363 widget = GTK_ACCESSIBLE (image)->widget;
366 *width = *height = 0;
370 *width = widget->allocation.width;
371 *height = widget->allocation.height;
376 gtk_spinner_accessible_image_interface_init (AtkImageIface *iface)
378 iface->get_image_size = gtk_spinner_accessible_image_get_size;
382 gtk_spinner_accessible_get_type (void)
384 static GType type = 0;
388 if (G_UNLIKELY (type == 0))
390 const GInterfaceInfo atk_image_info = {
391 (GInterfaceInitFunc) gtk_spinner_accessible_image_interface_init,
392 (GInterfaceFinalizeFunc) NULL,
396 GType parent_atk_type;
397 GTypeInfo tinfo = { 0 };
399 AtkObjectFactory *factory;
401 if ((type = g_type_from_name ("GtkSpinnerAccessible")))
404 factory = atk_registry_get_factory (atk_get_default_registry (),
407 return G_TYPE_INVALID;
409 parent_atk_type = atk_object_factory_get_accessible_type (factory);
410 if (!parent_atk_type)
411 return G_TYPE_INVALID;
414 * Figure out the size of the class and instance
415 * we are deriving from
417 g_type_query (parent_atk_type, &query);
419 tinfo.class_init = (GClassInitFunc) gtk_spinner_accessible_class_init;
420 tinfo.class_size = query.class_size;
421 tinfo.instance_size = query.instance_size;
423 /* Register the type */
424 type = g_type_register_static (parent_atk_type,
425 "GtkSpinnerAccessible",
428 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
436 gtk_spinner_get_accessible (GtkWidget *widget)
438 static gboolean first_time = TRUE;
442 AtkObjectFactory *factory;
443 AtkRegistry *registry;
445 GType derived_atk_type;
448 * Figure out whether accessibility is enabled by looking at the
449 * type of the accessible object which would be created for
450 * the parent type of GtkSpinner.
452 derived_type = g_type_parent (GTK_TYPE_SPINNER);
454 registry = atk_get_default_registry ();
455 factory = atk_registry_get_factory (registry,
457 derived_atk_type = atk_object_factory_get_accessible_type (factory);
458 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
459 atk_registry_set_factory_type (registry,
461 gtk_spinner_accessible_factory_get_type ());
464 return GTK_WIDGET_CLASS (gtk_spinner_parent_class)->get_accessible (widget);
470 * Returns a new spinner widget. Not yet started.
472 * Return value: a new #GtkSpinner
477 gtk_spinner_new (void)
479 return g_object_new (GTK_TYPE_SPINNER, NULL);
485 * Starts the animation on the #GtkSpinner
490 gtk_spinner_start (GtkSpinner *spinner)
492 GtkSpinnerPrivate *priv;
494 g_return_if_fail (GTK_IS_SPINNER (spinner));
496 priv = GTK_SPINNER_GET_PRIVATE (spinner);
497 if (priv->timeout != 0)
501 priv->timeout = gdk_threads_add_timeout (1000 / priv->num_steps, gtk_spinner_timeout, spinner);
502 g_object_notify (G_OBJECT (spinner), "active");
508 * Stops the animation on the #GtkSpinner
513 gtk_spinner_stop (GtkSpinner *spinner)
515 GtkSpinnerPrivate *priv;
517 g_return_if_fail (GTK_IS_SPINNER (spinner));
519 priv = GTK_SPINNER_GET_PRIVATE (spinner);
520 if (priv->timeout == 0)
524 g_source_remove (priv->timeout);
526 g_object_notify (G_OBJECT (spinner), "active");
529 #define __GTK_SPINNER_C__
530 #include "gtkaliasdef.c"