1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2005 Ronald S. Bultje
3 * Copyright (C) 2006, 2007 Christian Persch
4 * Copyright (C) 2006 Jan Arne Petersen
5 * Copyright (C) 2005-2007 Red Hat, Inc.
8 * - Ronald S. Bultje <rbultje@ronald.bitfreak.net>
9 * - Bastien Nocera <bnocera@redhat.com>
10 * - Jan Arne Petersen <jpetersen@jpetersen.org>
11 * - Christian Persch <chpe@svn.gnome.org>
13 * This library is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2 of the License, or (at your option) any later version.
18 * This library is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with this library; if not, write to the
25 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
26 * Boston, MA 02111-1307, USA.
30 * Modified by the GTK+ Team and others 2007. See the AUTHORS
31 * file for a list of people on the GTK+ Team. See the ChangeLog
32 * files for a list of changes. These files are distributed with
33 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
46 #include "gtkbindings.h"
48 #include "gtkvscale.h"
51 #include "gtkwindow.h"
52 #include "gtkmarshalers.h"
54 #include "gtkprivate.h"
56 #include <gdk-pixbuf/gdk-pixbuf.h>
57 #include <gdk/gdkkeysyms.h>
58 #include "gtkscalebutton.h"
62 #define SCALE_SIZE 100
63 #define CLICK_TIMEOUT 250
84 #define GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_SCALE_BUTTON, GtkScaleButtonPrivate))
86 struct _GtkScaleButtonPrivate
103 static void gtk_scale_button_class_init (GtkScaleButtonClass *klass);
104 static void gtk_scale_button_init (GtkScaleButton *button);
105 static void gtk_scale_button_dispose (GObject *object);
106 static void gtk_scale_button_finalize (GObject *object);
107 static void gtk_scale_button_set_property (GObject *object,
111 static void gtk_scale_button_get_property (GObject *object,
115 static gboolean gtk_scale_button_scroll (GtkWidget *widget,
116 GdkEventScroll *event);
117 static void gtk_scale_button_screen_changed (GtkWidget *widget,
118 GdkScreen *previous_screen);
119 static gboolean gtk_scale_button_press (GtkWidget *widget,
120 GdkEventButton *event);
121 static gboolean gtk_scale_button_key_release (GtkWidget *widget,
123 static void gtk_scale_button_popup_from_bindings (GtkWidget *widget);
124 static void gtk_scale_button_popdown_from_bindings (GtkWidget *widget);
125 static gboolean cb_dock_button_press (GtkWidget *widget,
126 GdkEventButton *event,
128 static gboolean cb_dock_key_release (GtkWidget *widget,
131 static gboolean cb_button_press (GtkWidget *widget,
132 GdkEventButton *event,
134 static gboolean cb_button_release (GtkWidget *widget,
135 GdkEventButton *event,
137 static void cb_dock_grab_notify (GtkWidget *widget,
138 gboolean was_grabbed,
140 static gboolean cb_dock_grab_broken_event (GtkWidget *widget,
141 gboolean was_grabbed,
143 static void cb_scale_grab_notify (GtkWidget *widget,
144 gboolean was_grabbed,
146 static void gtk_scale_button_update_icon (GtkScaleButton *button);
147 static void gtk_scale_button_scale_value_changed(GtkRange *range);
149 /* see below for scale definitions */
150 static GtkWidget *gtk_scale_button_scale_new (GtkScaleButton *button,
155 static guint signals[LAST_SIGNAL] = { 0, };
157 G_DEFINE_TYPE (GtkScaleButton, gtk_scale_button, GTK_TYPE_BUTTON)
160 gtk_scale_button_class_init (GtkScaleButtonClass *klass)
162 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
163 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
164 GtkBindingSet *binding_set;
166 g_type_class_add_private (klass, sizeof (GtkScaleButtonPrivate));
168 gobject_class->finalize = gtk_scale_button_finalize;
169 gobject_class->dispose = gtk_scale_button_dispose;
170 gobject_class->set_property = gtk_scale_button_set_property;
171 gobject_class->get_property = gtk_scale_button_get_property;
173 widget_class->button_press_event = gtk_scale_button_press;
174 widget_class->key_release_event = gtk_scale_button_key_release;
175 widget_class->scroll_event = gtk_scale_button_scroll;
176 widget_class->screen_changed = gtk_scale_button_screen_changed;
178 g_object_class_install_property (gobject_class,
180 g_param_spec_double ("value",
182 P_("The value of the scale"),
186 GTK_PARAM_READWRITE));
188 g_object_class_install_property (gobject_class,
190 g_param_spec_enum ("size",
194 GTK_ICON_SIZE_SMALL_TOOLBAR,
195 GTK_PARAM_READWRITE));
197 g_object_class_install_property (gobject_class,
199 g_param_spec_object ("adjustment",
201 P_("The GtkAdjustment that contains the current value of this scale button object"),
203 GTK_PARAM_READWRITE));
206 * GtkScaleButton:icons:
208 * The names of the icons to be used by the scale button.
209 * The first item in the array will be used in the button
210 * when the current value is the lowest value, the second
211 * item for the highest value. All the subsequent icons will
212 * be used for all the other values, spread evenly over the
215 * If there's only one icon name in the @icons array, it will
216 * be used for all the values. If only two icon names are in
217 * the @icons array, the first one will be used for the bottom
218 * 50% of the scale, and the second one for the top 50%.
220 * It is recommended to use at least 3 icons so that the
221 * #GtkScaleButton reflects the current value of the scale
222 * better for the users.
226 g_object_class_install_property (gobject_class,
228 g_param_spec_boxed ("icons",
230 P_("List of icon names"),
232 GTK_PARAM_READWRITE));
235 * GtkScaleButton::value-changed:
236 * @button: the object which received the signal
237 * @value: the new value
239 * The ::value-changed signal is emitted when the value field has
244 signals[VALUE_CHANGED] =
245 g_signal_new (I_("value-changed"),
246 G_TYPE_FROM_CLASS (klass),
248 G_STRUCT_OFFSET (GtkScaleButtonClass, value_changed),
250 _gtk_marshal_VOID__DOUBLE,
251 G_TYPE_NONE, 1, G_TYPE_DOUBLE);
254 * GtkScaleButton::popup:
255 * @button: the object which received the signal
257 * The ::popup signal is a
258 * <link linkend="keybinding-signals">keybinding signal</link>
259 * which gets emitted to popup the scale widget.
261 * The default bindings for this signal are Space, Enter and Return.
266 _gtk_binding_signal_new (I_("popup"),
267 G_OBJECT_CLASS_TYPE (klass),
268 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
269 G_CALLBACK (gtk_scale_button_popup_from_bindings),
271 g_cclosure_marshal_VOID__VOID,
275 * GtkScaleButton::popdown:
276 * @button: the object which received the signal
278 * The ::popdown signal is a
279 * <link linkend="keybinding-signals">keybinding signal</link>
280 * which gets emitted to popdown the scale widget.
282 * The default binding for this signal is Escape.
287 _gtk_binding_signal_new (I_("popdown"),
288 G_OBJECT_CLASS_TYPE (klass),
289 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
290 G_CALLBACK (gtk_scale_button_popdown_from_bindings),
292 g_cclosure_marshal_VOID__VOID,
296 binding_set = gtk_binding_set_by_class (widget_class);
298 gtk_binding_entry_add_signal (binding_set, GDK_space, 0,
300 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0,
302 gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
304 gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
306 gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
308 gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
313 gtk_scale_button_init (GtkScaleButton *button)
315 GtkWidget *frame, *box;
316 GtkScaleButtonPrivate *priv;
318 button->priv = priv = GET_PRIVATE (button);
320 priv->timeout = FALSE;
322 priv->click_timeout = CLICK_TIMEOUT;
324 gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
325 gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
328 priv->image = gtk_image_new ();
329 gtk_container_add (GTK_CONTAINER (button), priv->image);
330 gtk_widget_show_all (priv->image);
333 priv->dock = gtk_window_new (GTK_WINDOW_POPUP);
334 g_signal_connect (priv->dock, "button-press-event",
335 G_CALLBACK (cb_dock_button_press), button);
336 g_signal_connect (priv->dock, "key-release-event",
337 G_CALLBACK (cb_dock_key_release), button);
338 g_signal_connect (priv->dock, "grab-notify",
339 G_CALLBACK (cb_dock_grab_notify), button);
340 g_signal_connect (priv->dock, "grab-broken-event",
341 G_CALLBACK (cb_dock_grab_broken_event), button);
342 gtk_window_set_decorated (GTK_WINDOW (priv->dock), FALSE);
345 frame = gtk_frame_new (NULL);
346 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
347 gtk_container_add (GTK_CONTAINER (priv->dock), frame);
348 box = gtk_vbox_new (FALSE, 0);
349 gtk_container_add (GTK_CONTAINER (frame), box);
352 button->plus_button = gtk_button_new_with_label ("+");
353 gtk_button_set_relief (GTK_BUTTON (button->plus_button), GTK_RELIEF_NONE);
354 g_signal_connect (button->plus_button, "button-press-event",
355 G_CALLBACK (cb_button_press), button);
356 g_signal_connect (button->plus_button, "button-release-event",
357 G_CALLBACK (cb_button_release), button);
358 gtk_box_pack_start (GTK_BOX (box), button->plus_button, TRUE, FALSE, 0);
361 priv->scale = gtk_scale_button_scale_new (button, 0., 100., 2.);
362 gtk_widget_set_size_request (priv->scale, -1, SCALE_SIZE);
363 gtk_scale_set_draw_value (GTK_SCALE (priv->scale), FALSE);
364 gtk_range_set_inverted (GTK_RANGE (priv->scale), TRUE);
365 gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, FALSE, 0);
366 g_signal_connect (priv->scale, "grab-notify",
367 G_CALLBACK (cb_scale_grab_notify), button);
370 button->minus_button = gtk_button_new_with_label ("-");
371 gtk_button_set_relief (GTK_BUTTON (button->minus_button), GTK_RELIEF_NONE);
372 g_signal_connect (button->minus_button, "button-press-event",
373 G_CALLBACK (cb_button_press), button);
374 g_signal_connect (button->minus_button, "button-release-event",
375 G_CALLBACK (cb_button_release), button);
376 gtk_box_pack_start (GTK_BOX (box), button->minus_button, TRUE, FALSE, 0);
378 /* set button text and size */
379 priv->size = GTK_ICON_SIZE_SMALL_TOOLBAR;
380 gtk_scale_button_update_icon (button);
384 gtk_scale_button_set_property (GObject *object,
389 GtkScaleButton *button;
391 button = GTK_SCALE_BUTTON (object);
396 gtk_scale_button_set_value (button, g_value_get_double (value));
401 size = g_value_get_enum (value);
402 if (button->priv->size != size)
404 button->priv->size = size;
405 gtk_scale_button_update_icon (button);
409 case PROP_ADJUSTMENT:
410 gtk_scale_button_set_adjustment (button, g_value_get_object (value));
413 gtk_scale_button_set_icons (button,
414 (const gchar **)g_value_get_boxed (value));
417 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
423 gtk_scale_button_get_property (GObject *object,
428 GtkScaleButton *button;
429 GtkScaleButtonPrivate *priv;
431 button = GTK_SCALE_BUTTON (object);
437 g_value_set_double (value, gtk_scale_button_get_value (button));
440 g_value_set_enum (value, priv->size);
442 case PROP_ADJUSTMENT:
443 g_value_set_object (value, gtk_scale_button_get_adjustment (button));
446 g_value_set_boxed (value, priv->icon_list);
449 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
455 gtk_scale_button_finalize (GObject *object)
457 GtkScaleButton *button = GTK_SCALE_BUTTON (object);
458 GtkScaleButtonPrivate *priv = button->priv;
462 g_strfreev (priv->icon_list);
463 priv->icon_list = NULL;
466 G_OBJECT_CLASS (gtk_scale_button_parent_class)->finalize (object);
470 gtk_scale_button_dispose (GObject *object)
472 GtkScaleButton *button = GTK_SCALE_BUTTON (object);
473 GtkScaleButtonPrivate *priv = button->priv;
477 gtk_widget_destroy (priv->dock);
481 if (priv->click_id != 0)
483 g_source_remove (priv->click_id);
487 G_OBJECT_CLASS (gtk_scale_button_parent_class)->dispose (object);
491 * gtk_scale_button_new:
492 * @size: a stock icon size
493 * @min: the minimum value of the scale (usually 0)
494 * @max: the maximum value of the scale (usually 100)
495 * @step: the stepping of value when a scroll-wheel event,
496 * or up/down arrow event occurs (usually 2)
497 * @icons: a %NULL-terminated array of icon names, or %NULL if
498 * you want to set the list later with gtk_scale_button_set_icons()
500 * Creates a #GtkScaleButton, with a range between @min and @max, with
501 * a stepping of @step.
503 * Return value: a new #GtkScaleButton
508 gtk_scale_button_new (GtkIconSize size,
514 GtkScaleButton *button;
517 adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
519 button = g_object_new (GTK_TYPE_SCALE_BUTTON,
525 return GTK_WIDGET (button);
529 * gtk_scale_button_get_value:
530 * @button: a #GtkScaleButton
532 * Gets the current value of the scale button.
534 * Return value: current value of the scale button
539 gtk_scale_button_get_value (GtkScaleButton * button)
541 GtkScaleButtonPrivate *priv;
543 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), 0);
547 return gtk_range_get_value (GTK_RANGE (priv->scale));
551 * gtk_scale_button_set_value:
552 * @button: a #GtkScaleButton
553 * @value: new value of the scale button
555 * Sets the current value of the scale; if the value is outside
556 * the minimum or maximum range values, it will be clamped to fit
557 * inside them. The scale button emits the #GtkScaleButton::value-changed
558 * signal if the value changes.
563 gtk_scale_button_set_value (GtkScaleButton *button,
566 GtkScaleButtonPrivate *priv;
568 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
572 gtk_range_set_value (GTK_RANGE (priv->scale), value);
576 * gtk_scale_button_set_icons:
577 * @button: a #GtkScaleButton
578 * @icons: a %NULL-terminated array of icon names
580 * Sets the icons to be used by the scale button.
581 * For details, see the #GtkScaleButton:icons property.
586 gtk_scale_button_set_icons (GtkScaleButton *button,
589 GtkScaleButtonPrivate *priv;
592 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
596 tmp = priv->icon_list;
597 priv->icon_list = g_strdupv ((gchar **) icons);
599 gtk_scale_button_update_icon (button);
601 g_object_notify (G_OBJECT (button), "icons");
605 * gtk_scale_button_get_adjustment:
606 * @button: a #GtkScaleButton
608 * Gets the #GtkAdjustment associated with the #GtkScaleButton's scale.
609 * See gtk_range_get_adjustment() for details.
611 * Returns: the adjustment associated with the scale
616 gtk_scale_button_get_adjustment (GtkScaleButton *button)
620 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
622 range = GTK_RANGE (button->priv->scale);
623 g_return_val_if_fail (range != NULL, NULL);
625 return gtk_range_get_adjustment (range);
629 * gtk_scale_button_set_adjustment:
630 * @button: a #GtkScaleButton
631 * @adjustment: a #GtkAdjustment
633 * Sets the #GtkAdjustment to be used as a model
634 * for the #GtkScaleButton's scale.
635 * See gtk_range_set_adjustment() for details.
640 gtk_scale_button_set_adjustment (GtkScaleButton *button,
641 GtkAdjustment *adjustment)
643 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
644 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
646 gtk_range_set_adjustment (GTK_RANGE (button->priv->scale),
649 g_object_notify (G_OBJECT (button), "adjustment");
657 gtk_scale_button_scroll (GtkWidget *widget,
658 GdkEventScroll *event)
660 GtkScaleButton *button;
661 GtkScaleButtonPrivate *priv;
665 button = GTK_SCALE_BUTTON (widget);
667 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
669 if (event->type != GDK_SCROLL)
672 d = gtk_scale_button_get_value (button);
673 if (event->direction == GDK_SCROLL_UP)
675 d += adj->step_increment;
681 d -= adj->step_increment;
685 gtk_scale_button_set_value (button, d);
691 gtk_scale_button_screen_changed (GtkWidget *widget,
692 GdkScreen *previous_screen)
694 GtkScaleButton *button = (GtkScaleButton *) widget;
695 GtkScaleButtonPrivate *priv;
697 GValue value = { 0, };
699 if (gtk_widget_has_screen (widget) == FALSE)
704 screen = gtk_widget_get_screen (widget);
705 g_value_init (&value, G_TYPE_INT);
706 if (gdk_screen_get_setting (screen,
707 "gtk-double-click-time",
710 priv->click_timeout = CLICK_TIMEOUT;
714 priv->click_timeout = g_value_get_int (&value);
718 gtk_scale_popup (GtkWidget *widget,
722 GtkScaleButton *button;
723 GtkScaleButtonPrivate *priv;
725 gint x, y, m, dx, dy, sx, sy, ystartoff;
730 button = GTK_SCALE_BUTTON (widget);
732 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
734 display = gtk_widget_get_display (widget);
735 screen = gtk_widget_get_screen (widget);
737 /* position roughly */
738 gtk_window_set_screen (GTK_WINDOW (priv->dock), screen);
740 gdk_window_get_origin (widget->window, &x, &y);
741 x += widget->allocation.x;
742 y += widget->allocation.y;
743 gtk_window_move (GTK_WINDOW (priv->dock), x, y - (SCALE_SIZE / 2));
744 gtk_widget_show_all (priv->dock);
745 gdk_window_get_origin (priv->dock->window, &dx, &dy);
746 dy += priv->dock->allocation.y;
747 gdk_window_get_origin (priv->scale->window, &sx, &sy);
748 sy += priv->scale->allocation.y;
750 priv->timeout = TRUE;
752 /* position (needs widget to be shown already) */
753 v = gtk_scale_button_get_value (button) / (adj->upper - adj->lower);
754 x += (widget->allocation.width - priv->dock->allocation.width) / 2;
756 y -= GTK_RANGE (priv->scale)->min_slider_size / 2;
757 m = priv->scale->allocation.height -
758 GTK_RANGE (priv->scale)->min_slider_size;
761 /* Make sure the dock stays inside the monitor */
762 if (event->type == GDK_BUTTON_PRESS)
765 GdkEventButton *button_event = (GdkEventButton *) event;
769 d = GTK_WIDGET (priv->dock);
770 monitor = gdk_screen_get_monitor_at_point (screen,
771 button_event->x_root,
772 button_event->y_root);
773 gdk_screen_get_monitor_geometry (screen, monitor, &rect);
775 y += button_event->y;
778 else if (y + d->allocation.height > rect.height + rect.y)
779 y = rect.y + rect.height - d->allocation.height;
783 else if (x + d->allocation.width > rect.width + rect.x)
784 x = rect.x + rect.width - d->allocation.width;
787 gtk_window_move (GTK_WINDOW (priv->dock), x, y);
789 if (event->type == GDK_BUTTON_PRESS)
790 GTK_WIDGET_CLASS (gtk_scale_button_parent_class)->button_press_event (widget, (GdkEventButton *) event);
793 gtk_grab_add (priv->dock);
795 if (gdk_pointer_grab (priv->dock->window, TRUE,
796 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
797 GDK_POINTER_MOTION_MASK, NULL, NULL, time)
800 gtk_grab_remove (priv->dock);
801 gtk_widget_hide (priv->dock);
805 if (gdk_keyboard_grab (priv->dock->window, TRUE, time) != GDK_GRAB_SUCCESS)
807 gdk_display_pointer_ungrab (display, time);
808 gtk_grab_remove (priv->dock);
809 gtk_widget_hide (priv->dock);
813 gtk_widget_grab_focus (priv->dock);
815 if (event->type == GDK_BUTTON_PRESS)
818 GdkEventButton *button_event = (GdkEventButton *) event;
820 /* forward event to the slider */
821 e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
822 e->window = priv->scale->window;
824 /* position: the X position isn't relevant, halfway will work just fine.
825 * The vertical position should be *exactly* in the middle of the slider
826 * of the scale; if we don't do that correctly, it'll move from its current
827 * position, which means a position change on-click, which is bad. */
828 e->x = priv->scale->allocation.width / 2;
829 m = priv->scale->allocation.height -
830 GTK_RANGE (priv->scale)->min_slider_size;
831 e->y = ((1.0 - v) * m) + GTK_RANGE (priv->scale)->min_slider_size / 2;
832 gtk_widget_event (priv->scale, (GdkEvent *) e);
833 e->window = button_event->window;
834 gdk_event_free ((GdkEvent *) e);
837 gtk_widget_grab_focus (priv->scale);
839 priv->pop_time = time;
845 gtk_scale_button_press (GtkWidget *widget,
846 GdkEventButton *event)
848 return gtk_scale_popup (widget, (GdkEvent *) event, event->time);
852 gtk_scale_button_popup_from_bindings (GtkWidget *widget)
856 ev = gdk_event_new (GDK_KEY_RELEASE);
857 gtk_scale_popup (widget, ev, GDK_CURRENT_TIME);
862 gtk_scale_button_key_release (GtkWidget *widget,
865 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
868 /* This is called when the grab is broken for
869 * either the dock, or the scale itself */
871 gtk_scale_button_grab_notify (GtkScaleButton *button,
872 gboolean was_grabbed)
875 GtkScaleButtonPrivate *priv;
877 if (was_grabbed != FALSE)
882 if (!GTK_WIDGET_HAS_GRAB (priv->dock))
885 if (gtk_widget_is_ancestor (gtk_grab_get_current (), priv->dock))
888 display = gtk_widget_get_display (priv->dock);
889 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
890 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
891 gtk_grab_remove (priv->dock);
894 gtk_widget_hide (priv->dock);
895 priv->timeout = FALSE;
899 * +/- button callbacks.
903 cb_button_timeout (gpointer user_data)
905 GtkScaleButton *button;
906 GtkScaleButtonPrivate *priv;
911 button = GTK_SCALE_BUTTON (user_data);
914 if (priv->click_id == 0)
917 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
919 val = gtk_scale_button_get_value (button);
920 val += priv->direction;
921 if (val <= adj->lower)
926 else if (val > adj->upper)
931 gtk_scale_button_set_value (button, val);
935 g_source_remove (priv->click_id);
943 cb_button_press (GtkWidget *widget,
944 GdkEventButton *event,
947 GtkScaleButton *button;
948 GtkScaleButtonPrivate *priv;
951 button = GTK_SCALE_BUTTON (user_data);
953 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
955 if (priv->click_id != 0)
956 g_source_remove (priv->click_id);
958 if (widget == button->plus_button)
959 priv->direction = fabs (adj->page_increment);
961 priv->direction = - fabs (adj->page_increment);
963 priv->click_id = gdk_threads_add_timeout (priv->click_timeout,
966 cb_button_timeout (button);
972 cb_button_release (GtkWidget *widget,
973 GdkEventButton *event,
976 GtkScaleButton *button;
977 GtkScaleButtonPrivate *priv;
979 button = GTK_SCALE_BUTTON (user_data);
982 if (priv->click_id != 0)
984 g_source_remove (priv->click_id);
992 cb_dock_grab_notify (GtkWidget *widget,
993 gboolean was_grabbed,
996 GtkScaleButton *button = (GtkScaleButton *) user_data;
998 gtk_scale_button_grab_notify (button, was_grabbed);
1002 cb_dock_grab_broken_event (GtkWidget *widget,
1003 gboolean was_grabbed,
1006 GtkScaleButton *button = (GtkScaleButton *) user_data;
1008 gtk_scale_button_grab_notify (button, FALSE);
1018 gtk_scale_button_release_grab (GtkScaleButton *button,
1019 GdkEventButton *event)
1022 GdkDisplay *display;
1023 GtkScaleButtonPrivate *priv;
1025 priv = button->priv;
1028 display = gtk_widget_get_display (GTK_WIDGET (button));
1029 gdk_display_keyboard_ungrab (display, event->time);
1030 gdk_display_pointer_ungrab (display, event->time);
1031 gtk_grab_remove (priv->dock);
1034 gtk_widget_hide (priv->dock);
1035 priv->timeout = FALSE;
1037 e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
1038 e->window = GTK_WIDGET (button)->window;
1039 e->type = GDK_BUTTON_RELEASE;
1040 gtk_widget_event (GTK_WIDGET (button), (GdkEvent *) e);
1041 e->window = event->window;
1042 gdk_event_free ((GdkEvent *) e);
1046 cb_dock_button_press (GtkWidget *widget,
1047 GdkEventButton *event,
1050 GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
1052 if (event->type == GDK_BUTTON_PRESS)
1054 gtk_scale_button_release_grab (button, event);
1062 gtk_scale_button_popdown_from_bindings (GtkWidget *widget)
1064 GtkScaleButton *button;
1065 GtkScaleButtonPrivate *priv;
1066 GdkDisplay *display;
1068 button = GTK_SCALE_BUTTON (widget);
1069 priv = button->priv;
1072 display = gtk_widget_get_display (widget);
1073 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1074 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1075 gtk_grab_remove (priv->dock);
1078 gtk_widget_hide (priv->dock);
1079 priv->timeout = FALSE;
1083 cb_dock_key_release (GtkWidget *widget,
1087 if (event->keyval == GDK_Escape)
1089 gtk_scale_button_popdown_from_bindings (GTK_WIDGET (user_data));
1093 if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
1095 /* The popup hasn't managed the event, pass onto the button */
1096 gtk_bindings_activate_event (GTK_OBJECT (user_data), event);
1103 cb_scale_grab_notify (GtkWidget *widget,
1104 gboolean was_grabbed,
1107 GtkScaleButton *button = (GtkScaleButton *) user_data;
1109 gtk_scale_button_grab_notify (button, was_grabbed);
1116 #define GTK_TYPE_SCALE_BUTTON_SCALE \
1117 (gtk_scale_button_scale_get_type ())
1118 #define GTK_SCALE_BUTTON_SCALE(obj) \
1119 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE_BUTTON_SCALE, \
1120 GtkScaleButtonScale))
1122 typedef struct _GtkScaleButtonScaleClass {
1123 GtkVScaleClass parent_class;
1124 } GtkScaleButtonScaleClass;
1126 typedef struct _GtkScaleButtonScale {
1128 GtkScaleButton *button;
1129 } GtkScaleButtonScale;
1131 static GType gtk_scale_button_scale_get_type (void);
1132 static void gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass);
1133 static gboolean gtk_scale_button_scale_press (GtkWidget *widget,
1134 GdkEventButton *event);
1135 static gboolean gtk_scale_button_scale_release (GtkWidget *widget,
1136 GdkEventButton *event);
1138 G_DEFINE_TYPE (GtkScaleButtonScale, gtk_scale_button_scale, GTK_TYPE_VSCALE)
1141 gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass)
1143 GtkWidgetClass *gtkwidget_class = GTK_WIDGET_CLASS (klass);
1144 GtkRangeClass *gtkrange_class = GTK_RANGE_CLASS (klass);
1146 gtkwidget_class->button_press_event = gtk_scale_button_scale_press;
1147 gtkwidget_class->button_release_event = gtk_scale_button_scale_release;
1148 gtkrange_class->value_changed = gtk_scale_button_scale_value_changed;
1152 gtk_scale_button_scale_init (GtkScaleButtonScale *scale)
1157 gtk_scale_button_scale_new (GtkScaleButton *button,
1162 GtkScaleButtonScale *scale;
1163 GtkScaleButtonPrivate *priv;
1166 priv = button->priv;
1167 scale = g_object_new (GTK_TYPE_SCALE_BUTTON_SCALE, NULL);
1168 adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
1169 gtk_range_set_adjustment (GTK_RANGE (scale), GTK_ADJUSTMENT (adj));
1170 scale->button = button;
1172 return GTK_WIDGET (scale);
1176 gtk_scale_button_scale_press (GtkWidget *widget,
1177 GdkEventButton *event)
1179 GtkScaleButtonScale *scale;
1180 GtkScaleButtonPrivate *priv;
1182 scale = GTK_SCALE_BUTTON_SCALE (widget);
1183 priv = scale->button->priv;
1185 /* the scale will grab input; if we have input grabbed, all goes
1186 * horribly wrong, so let's not do that. */
1187 gtk_grab_remove (priv->dock);
1189 return GTK_WIDGET_CLASS (gtk_scale_button_scale_parent_class)->button_press_event (widget, event);
1193 gtk_scale_button_scale_release (GtkWidget *widget,
1194 GdkEventButton *event)
1196 GtkScaleButtonScale *scale;
1197 GtkScaleButtonPrivate *priv;
1198 GtkWidgetClass *widget_class;
1201 scale = GTK_SCALE_BUTTON_SCALE (widget);
1202 priv = scale->button->priv;
1204 widget_class = GTK_WIDGET_CLASS (gtk_scale_button_scale_parent_class);
1208 /* if we did a quick click, leave the window open; else, hide it */
1209 if (event->time > priv->pop_time + priv->click_timeout)
1212 gtk_scale_button_release_grab (scale->button, event);
1213 widget_class->button_release_event (widget, event);
1218 priv->timeout = FALSE;
1221 res = widget_class->button_release_event (widget, event);
1223 /* the scale will release input; right after that, we *have to* grab
1224 * it back so we can catch out-of-scale clicks and hide the popup,
1225 * so I basically want a g_signal_connect_after_always(), but I can't
1226 * find that, so we do this complex 'first-call-parent-then-do-actual-
1227 * action' thingy... */
1228 gtk_grab_add (priv->dock);
1234 gtk_scale_button_update_icon (GtkScaleButton *button)
1236 GtkScaleButtonPrivate *priv;
1243 priv = button->priv;
1245 if (!priv->icon_list || priv->icon_list[0] == '\0')
1247 gtk_image_set_from_stock (GTK_IMAGE (priv->image),
1248 GTK_STOCK_MISSING_IMAGE,
1253 num_icons = g_strv_length (priv->icon_list);
1255 /* The 1-icon special case */
1258 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1264 range = GTK_RANGE (priv->scale);
1265 adj = gtk_range_get_adjustment (range);
1266 value = gtk_scale_button_get_value (button);
1268 /* The 2-icons special case */
1272 limit = (adj->upper - adj->lower) / 2 + adj->lower;
1274 name = priv->icon_list[0];
1276 name = priv->icon_list[1];
1278 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1284 /* With 3 or more icons */
1285 if (value == adj->lower)
1287 name = priv->icon_list[0];
1289 else if (value == adj->upper)
1291 name = priv->icon_list[1];
1298 step = (adj->upper - adj->lower) / (num_icons - 2);
1299 i = (guint) ((value - adj->lower) / step) + 2;
1300 g_assert (i < num_icons);
1301 name = priv->icon_list[i];
1304 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1310 gtk_scale_button_scale_value_changed (GtkRange *range)
1312 GtkScaleButtonScale *scale = GTK_SCALE_BUTTON_SCALE (range);
1313 GtkScaleButton *button = scale->button;
1316 value = gtk_range_get_value (range);
1318 gtk_scale_button_update_icon (button);
1320 g_signal_emit (button, signals[VALUE_CHANGED], 0, value);
1321 g_object_notify (G_OBJECT (button), "value");
1325 * gtk_scale_button_get_plus_button:
1326 * @button: a #GtkScaleButton
1328 * Retrieves the scale buttons plus button widget
1330 * Return value: the plus button widget
1335 gtk_scale_button_get_plus_button (GtkScaleButton *button)
1337 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), button);
1339 return button->plus_button;
1343 * gtk_scale_button_get_minus_button:
1344 * @button: a #GtkScaleButton
1346 * Retrieves the scale buttons minus button widget
1348 * Return value: the minus button widget
1353 gtk_scale_button_get_minus_button (GtkScaleButton *button)
1355 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), button);
1357 return button->minus_button;
1360 #define __GTK_SCALE_BUTTON_C__
1361 #include "gtkaliasdef.c"