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 gtk_spinner_start (GTK_SPINNER (object));
157 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
162 gtk_spinner_init (GtkSpinner *spinner)
164 GtkSpinnerPrivate *priv;
166 priv = GTK_SPINNER_GET_PRIVATE (spinner);
170 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW);
174 gtk_spinner_expose (GtkWidget *widget, GdkEventExpose *event)
176 GtkStateType state_type;
177 GtkSpinnerPrivate *priv;
180 priv = GTK_SPINNER_GET_PRIVATE (widget);
182 width = widget->allocation.width;
183 height = widget->allocation.height;
185 if ((width < 12) || (height <12))
186 gtk_widget_set_size_request (widget, 12, 12);
188 state_type = GTK_STATE_NORMAL;
189 if (!GTK_WIDGET_IS_SENSITIVE (widget))
190 state_type = GTK_STATE_INSENSITIVE;
192 gtk_paint_spinner (widget->style,
196 event->area.x, event->area.y,
197 event->area.width, event->area.height);
203 gtk_spinner_screen_changed (GtkWidget* widget, GdkScreen* old_screen)
206 GdkScreen* new_screen;
207 GdkColormap* colormap;
209 spinner = GTK_SPINNER(widget);
211 new_screen = gtk_widget_get_screen (widget);
212 colormap = gdk_screen_get_rgba_colormap (new_screen);
216 colormap = gdk_screen_get_rgb_colormap (new_screen);
219 gtk_widget_set_colormap (widget, colormap);
223 gtk_spinner_style_set (GtkWidget *widget,
224 GtkStyle *prev_style)
226 GtkSpinnerPrivate *priv;
228 priv = GTK_SPINNER_GET_PRIVATE (widget);
230 gtk_widget_style_get (GTK_WIDGET (widget),
231 "num-steps", &(priv->num_steps),
234 if (priv->current > priv->num_steps)
239 gtk_spinner_timeout (gpointer data)
241 GtkSpinnerPrivate *priv;
243 priv = GTK_SPINNER_GET_PRIVATE (data);
245 if (priv->current + 1 >= priv->num_steps)
254 gtk_widget_queue_draw (GTK_WIDGET (data));
259 gtk_spinner_dispose (GObject *gobject)
261 GtkSpinnerPrivate *priv;
263 priv = GTK_SPINNER_GET_PRIVATE (gobject);
265 if (priv->timeout != 0)
267 g_source_remove (priv->timeout);
271 G_OBJECT_CLASS (gtk_spinner_parent_class)->dispose (gobject);
275 gtk_spinner_accessible_factory_get_accessible_type (void)
277 return gtk_spinner_accessible_get_type ();
281 gtk_spinner_accessible_new (GObject *obj)
283 AtkObject *accessible;
285 g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL);
287 accessible = g_object_new (gtk_spinner_accessible_get_type (), NULL);
288 atk_object_initialize (accessible, obj);
294 gtk_spinner_accessible_factory_create_accessible (GObject *obj)
296 return gtk_spinner_accessible_new (obj);
300 gtk_spinner_accessible_factory_class_init (AtkObjectFactoryClass *klass)
302 klass->create_accessible = gtk_spinner_accessible_factory_create_accessible;
303 klass->get_accessible_type = gtk_spinner_accessible_factory_get_accessible_type;
307 gtk_spinner_accessible_factory_get_type (void)
309 static GType type = 0;
313 const GTypeInfo tinfo =
315 sizeof (AtkObjectFactoryClass),
316 NULL, /* base_init */
317 NULL, /* base_finalize */
318 (GClassInitFunc) gtk_spinner_accessible_factory_class_init,
319 NULL, /* class_finalize */
320 NULL, /* class_data */
321 sizeof (AtkObjectFactory),
326 type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY,
327 I_("GtkSpinnerAccessibleFactory"),
333 static AtkObjectClass *a11y_parent_class = NULL;
336 gtk_spinner_accessible_initialize (AtkObject *accessible,
339 atk_object_set_name (accessible, _("spinner"));
340 atk_object_set_description (accessible, _("provides visual status"));
342 a11y_parent_class->initialize (accessible, widget);
346 gtk_spinner_accessible_class_init (AtkObjectClass *klass)
348 a11y_parent_class = g_type_class_peek_parent (klass);
350 klass->initialize = gtk_spinner_accessible_initialize;
354 gtk_spinner_accessible_image_get_size (AtkImage *image,
360 widget = GTK_ACCESSIBLE (image)->widget;
363 *width = *height = 0;
367 *width = widget->allocation.width;
368 *height = widget->allocation.height;
373 gtk_spinner_accessible_image_interface_init (AtkImageIface *iface)
375 iface->get_image_size = gtk_spinner_accessible_image_get_size;
379 gtk_spinner_accessible_get_type (void)
381 static GType type = 0;
385 if (G_UNLIKELY (type == 0))
387 const GInterfaceInfo atk_image_info = {
388 (GInterfaceInitFunc) gtk_spinner_accessible_image_interface_init,
389 (GInterfaceFinalizeFunc) NULL,
393 GType parent_atk_type;
394 GTypeInfo tinfo = { 0 };
396 AtkObjectFactory *factory;
398 if ((type = g_type_from_name ("GtkSpinnerAccessible")))
401 factory = atk_registry_get_factory (atk_get_default_registry (),
404 return G_TYPE_INVALID;
406 parent_atk_type = atk_object_factory_get_accessible_type (factory);
407 if (!parent_atk_type)
408 return G_TYPE_INVALID;
411 * Figure out the size of the class and instance
412 * we are deriving from
414 g_type_query (parent_atk_type, &query);
416 tinfo.class_init = (GClassInitFunc) gtk_spinner_accessible_class_init;
417 tinfo.class_size = query.class_size;
418 tinfo.instance_size = query.instance_size;
420 /* Register the type */
421 type = g_type_register_static (parent_atk_type,
422 "GtkSpinnerAccessible",
425 g_type_add_interface_static (type, ATK_TYPE_IMAGE,
433 gtk_spinner_get_accessible (GtkWidget *widget)
435 static gboolean first_time = TRUE;
439 AtkObjectFactory *factory;
440 AtkRegistry *registry;
442 GType derived_atk_type;
445 * Figure out whether accessibility is enabled by looking at the
446 * type of the accessible object which would be created for
447 * the parent type of GtkSpinner.
449 derived_type = g_type_parent (GTK_TYPE_SPINNER);
451 registry = atk_get_default_registry ();
452 factory = atk_registry_get_factory (registry,
454 derived_atk_type = atk_object_factory_get_accessible_type (factory);
455 if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE))
456 atk_registry_set_factory_type (registry,
458 gtk_spinner_accessible_factory_get_type ());
461 return GTK_WIDGET_CLASS (gtk_spinner_parent_class)->get_accessible (widget);
467 * Returns a new spinner widget. Not yet started.
469 * Return value: a new #GtkSpinner
474 gtk_spinner_new (void)
476 return g_object_new (GTK_TYPE_SPINNER, NULL);
482 * Starts the animation on the #GtkSpinner
487 gtk_spinner_start (GtkSpinner *spinner)
489 GtkSpinnerPrivate *priv;
491 g_return_if_fail (GTK_IS_SPINNER (spinner));
493 priv = GTK_SPINNER_GET_PRIVATE (spinner);
494 if (priv->timeout != 0)
498 priv->timeout = gdk_threads_add_timeout (1000 / priv->num_steps, gtk_spinner_timeout, spinner);
504 * Stops the animation on the #GtkSpinner
509 gtk_spinner_stop (GtkSpinner *spinner)
511 GtkSpinnerPrivate *priv;
513 g_return_if_fail (GTK_IS_SPINNER (spinner));
515 priv = GTK_SPINNER_GET_PRIVATE (spinner);
516 if (priv->timeout == 0)
520 g_source_remove (priv->timeout);
524 #define __GTK_SPINNER_C__
525 #include "gtkaliasdef.c"