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_Return, 0,
302 gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
304 gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
306 gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
311 gtk_scale_button_init (GtkScaleButton *button)
313 GtkWidget *frame, *box;
314 GtkScaleButtonPrivate *priv;
316 button->priv = priv = GET_PRIVATE (button);
318 priv->timeout = FALSE;
320 priv->click_timeout = CLICK_TIMEOUT;
322 gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
323 gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
326 priv->image = gtk_image_new ();
327 gtk_container_add (GTK_CONTAINER (button), priv->image);
328 gtk_widget_show_all (priv->image);
331 priv->dock = gtk_window_new (GTK_WINDOW_POPUP);
332 g_signal_connect (priv->dock, "button-press-event",
333 G_CALLBACK (cb_dock_button_press), button);
334 g_signal_connect (priv->dock, "key-release-event",
335 G_CALLBACK (cb_dock_key_release), button);
336 g_signal_connect (priv->dock, "grab-notify",
337 G_CALLBACK (cb_dock_grab_notify), button);
338 g_signal_connect (priv->dock, "grab-broken-event",
339 G_CALLBACK (cb_dock_grab_broken_event), button);
340 gtk_window_set_decorated (GTK_WINDOW (priv->dock), FALSE);
343 frame = gtk_frame_new (NULL);
344 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
345 gtk_container_add (GTK_CONTAINER (priv->dock), frame);
346 box = gtk_vbox_new (FALSE, 0);
347 gtk_container_add (GTK_CONTAINER (frame), box);
350 button->plus_button = gtk_button_new_with_label ("+");
351 gtk_button_set_relief (GTK_BUTTON (button->plus_button), GTK_RELIEF_NONE);
352 g_signal_connect (button->plus_button, "button-press-event",
353 G_CALLBACK (cb_button_press), button);
354 g_signal_connect (button->plus_button, "button-release-event",
355 G_CALLBACK (cb_button_release), button);
356 gtk_box_pack_start (GTK_BOX (box), button->plus_button, TRUE, FALSE, 0);
359 priv->scale = gtk_scale_button_scale_new (button, 0., 100., 2.);
360 gtk_widget_set_size_request (priv->scale, -1, SCALE_SIZE);
361 gtk_scale_set_draw_value (GTK_SCALE (priv->scale), FALSE);
362 gtk_range_set_inverted (GTK_RANGE (priv->scale), TRUE);
363 gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, FALSE, 0);
364 g_signal_connect (priv->scale, "grab-notify",
365 G_CALLBACK (cb_scale_grab_notify), button);
368 button->minus_button = gtk_button_new_with_label ("-");
369 gtk_button_set_relief (GTK_BUTTON (button->minus_button), GTK_RELIEF_NONE);
370 g_signal_connect (button->minus_button, "button-press-event",
371 G_CALLBACK (cb_button_press), button);
372 g_signal_connect (button->minus_button, "button-release-event",
373 G_CALLBACK (cb_button_release), button);
374 gtk_box_pack_start (GTK_BOX (box), button->minus_button, TRUE, FALSE, 0);
376 /* set button text and size */
377 priv->size = GTK_ICON_SIZE_SMALL_TOOLBAR;
378 gtk_scale_button_update_icon (button);
382 gtk_scale_button_set_property (GObject *object,
387 GtkScaleButton *button;
389 button = GTK_SCALE_BUTTON (object);
394 gtk_scale_button_set_value (button, g_value_get_double (value));
399 size = g_value_get_enum (value);
400 if (button->priv->size != size)
402 button->priv->size = size;
403 gtk_scale_button_update_icon (button);
407 case PROP_ADJUSTMENT:
408 gtk_scale_button_set_adjustment (button, g_value_get_object (value));
411 gtk_scale_button_set_icons (button,
412 (const gchar **)g_value_get_boxed (value));
415 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
421 gtk_scale_button_get_property (GObject *object,
426 GtkScaleButton *button;
427 GtkScaleButtonPrivate *priv;
429 button = GTK_SCALE_BUTTON (object);
435 g_value_set_double (value, gtk_scale_button_get_value (button));
438 g_value_set_enum (value, priv->size);
440 case PROP_ADJUSTMENT:
441 g_value_set_object (value, gtk_scale_button_get_adjustment (button));
444 g_value_set_boxed (value, priv->icon_list);
447 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
453 gtk_scale_button_finalize (GObject *object)
455 GtkScaleButton *button = GTK_SCALE_BUTTON (object);
456 GtkScaleButtonPrivate *priv = button->priv;
460 g_strfreev (priv->icon_list);
461 priv->icon_list = NULL;
464 G_OBJECT_CLASS (gtk_scale_button_parent_class)->finalize (object);
468 gtk_scale_button_dispose (GObject *object)
470 GtkScaleButton *button = GTK_SCALE_BUTTON (object);
471 GtkScaleButtonPrivate *priv = button->priv;
475 gtk_widget_destroy (priv->dock);
479 if (priv->click_id != 0)
481 g_source_remove (priv->click_id);
485 G_OBJECT_CLASS (gtk_scale_button_parent_class)->dispose (object);
489 * gtk_scale_button_new
490 * @size: a stock icon size
491 * @min: the minimum value of the scale (usually 0)
492 * @max: the maximum value of the scale (usually 100)
493 * @step: the stepping of value when a scroll-wheel event,
494 * or up/down arrow event occurs (usually 2)
495 * @icons: a %NULL-terminated array of icon names, or %NULL if
496 * you want to set the list later with gtk_scale_button_set_icons()
498 * Creates a #GtkScaleButton, with a range between @min and @max, with
499 * a stepping of @step.
501 * Return value: a new #GtkScaleButton
506 gtk_scale_button_new (GtkIconSize size,
512 GtkScaleButton *button;
515 adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
517 button = g_object_new (GTK_TYPE_SCALE_BUTTON,
523 return GTK_WIDGET (button);
527 * gtk_scale_button_get_value
528 * @button: a #GtkScaleButton
530 * Gets the current value of the scale button.
532 * Return value: current value of the scale button
537 gtk_scale_button_get_value (GtkScaleButton * button)
539 GtkScaleButtonPrivate *priv;
541 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), 0);
545 return gtk_range_get_value (GTK_RANGE (priv->scale));
549 * gtk_scale_button_set_value
550 * @button: a #GtkScaleButton
551 * @value: new value of the scale button
553 * Sets the current value of the scale; if the value is outside
554 * the minimum or maximum range values, it will be clamped to fit
555 * inside them. The scale button emits the #GtkScaleButton::value-changed
556 * signal if the value changes.
561 gtk_scale_button_set_value (GtkScaleButton *button,
564 GtkScaleButtonPrivate *priv;
566 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
570 gtk_range_set_value (GTK_RANGE (priv->scale), value);
574 * gtk_scale_button_set_icons
575 * @button: a #GtkScaleButton
576 * @icons: a %NULL-terminated array of icon names
578 * Sets the icons to be used by the scale button.
579 * For details, see the #GtkScaleButton:icons property.
584 gtk_scale_button_set_icons (GtkScaleButton *button,
587 GtkScaleButtonPrivate *priv;
590 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
594 tmp = priv->icon_list;
595 priv->icon_list = g_strdupv ((gchar **) icons);
597 gtk_scale_button_update_icon (button);
599 g_object_notify (G_OBJECT (button), "icons");
603 * gtk_scale_button_get_adjustment:
604 * @button: a #GtkScaleButton
606 * Gets the #GtkAdjustment associated with the #GtkScaleButton's scale.
607 * See gtk_range_get_adjustment() for details.
609 * Returns: the adjustment associated with the scale
614 gtk_scale_button_get_adjustment (GtkScaleButton *button)
618 g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
620 range = GTK_RANGE (button->priv->scale);
621 g_return_val_if_fail (range != NULL, NULL);
623 return gtk_range_get_adjustment (range);
627 * gtk_scale_button_set_adjustment
628 * @button: a #GtkScaleButton
629 * @adjustment: a #GtkAdjustment
631 * Sets the #GtkAdjustment to be used as a model
632 * for the #GtkScaleButton's scale.
633 * See gtk_range_set_adjustment() for details.
638 gtk_scale_button_set_adjustment (GtkScaleButton *button,
639 GtkAdjustment *adjustment)
641 g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
642 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
644 gtk_range_set_adjustment (GTK_RANGE (button->priv->scale),
647 g_object_notify (G_OBJECT (button), "adjustment");
655 gtk_scale_button_scroll (GtkWidget *widget,
656 GdkEventScroll *event)
658 GtkScaleButton *button;
659 GtkScaleButtonPrivate *priv;
663 button = GTK_SCALE_BUTTON (widget);
665 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
667 if (event->type != GDK_SCROLL)
670 d = gtk_scale_button_get_value (button);
671 if (event->direction == GDK_SCROLL_UP)
673 d += adj->step_increment;
679 d -= adj->step_increment;
683 gtk_scale_button_set_value (button, d);
689 gtk_scale_button_screen_changed (GtkWidget *widget,
690 GdkScreen *previous_screen)
692 GtkScaleButton *button = (GtkScaleButton *) widget;
693 GtkScaleButtonPrivate *priv;
695 GValue value = { 0, };
697 if (gtk_widget_has_screen (widget) == FALSE)
702 screen = gtk_widget_get_screen (widget);
703 g_value_init (&value, G_TYPE_INT);
704 if (gdk_screen_get_setting (screen,
705 "gtk-double-click-time",
708 priv->click_timeout = CLICK_TIMEOUT;
712 priv->click_timeout = g_value_get_int (&value);
716 gtk_scale_popup (GtkWidget *widget,
720 GtkScaleButton *button;
721 GtkScaleButtonPrivate *priv;
723 gint x, y, m, dx, dy, sx, sy, ystartoff;
728 button = GTK_SCALE_BUTTON (widget);
730 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
732 display = gtk_widget_get_display (widget);
733 screen = gtk_widget_get_screen (widget);
735 /* position roughly */
736 gtk_window_set_screen (GTK_WINDOW (priv->dock), screen);
738 gdk_window_get_origin (widget->window, &x, &y);
739 x += widget->allocation.x;
740 y += widget->allocation.y;
741 gtk_window_move (GTK_WINDOW (priv->dock), x, y - (SCALE_SIZE / 2));
742 gtk_widget_show_all (priv->dock);
743 gdk_window_get_origin (priv->dock->window, &dx, &dy);
744 dy += priv->dock->allocation.y;
745 gdk_window_get_origin (priv->scale->window, &sx, &sy);
746 sy += priv->scale->allocation.y;
748 priv->timeout = TRUE;
750 /* position (needs widget to be shown already) */
751 v = gtk_scale_button_get_value (button) / (adj->upper - adj->lower);
752 x += (widget->allocation.width - priv->dock->allocation.width) / 2;
754 y -= GTK_RANGE (priv->scale)->min_slider_size / 2;
755 m = priv->scale->allocation.height -
756 GTK_RANGE (priv->scale)->min_slider_size;
759 /* Make sure the dock stays inside the monitor */
760 if (event->type == GDK_BUTTON_PRESS)
763 GdkEventButton *button_event = (GdkEventButton *) event;
767 d = GTK_WIDGET (priv->dock);
768 monitor = gdk_screen_get_monitor_at_point (screen,
769 button_event->x_root,
770 button_event->y_root);
771 gdk_screen_get_monitor_geometry (screen, monitor, &rect);
773 y += button_event->y;
776 else if (y + d->allocation.height > rect.height + rect.y)
777 y = rect.y + rect.height - d->allocation.height;
781 else if (x + d->allocation.width > rect.width + rect.x)
782 x = rect.x + rect.width - d->allocation.width;
785 gtk_window_move (GTK_WINDOW (priv->dock), x, y);
787 if (event->type == GDK_BUTTON_PRESS)
788 GTK_WIDGET_CLASS (gtk_scale_button_parent_class)->button_press_event (widget, (GdkEventButton *) event);
791 gtk_grab_add (priv->dock);
793 if (gdk_pointer_grab (priv->dock->window, TRUE,
794 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
795 GDK_POINTER_MOTION_MASK, NULL, NULL, time)
798 gtk_grab_remove (priv->dock);
799 gtk_widget_hide (priv->dock);
803 if (gdk_keyboard_grab (priv->dock->window, TRUE, time) != GDK_GRAB_SUCCESS)
805 gdk_display_pointer_ungrab (display, time);
806 gtk_grab_remove (priv->dock);
807 gtk_widget_hide (priv->dock);
811 gtk_widget_grab_focus (priv->dock);
813 if (event->type == GDK_BUTTON_PRESS)
816 GdkEventButton *button_event = (GdkEventButton *) event;
818 /* forward event to the slider */
819 e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
820 e->window = priv->scale->window;
822 /* position: the X position isn't relevant, halfway will work just fine.
823 * The vertical position should be *exactly* in the middle of the slider
824 * of the scale; if we don't do that correctly, it'll move from its current
825 * position, which means a position change on-click, which is bad. */
826 e->x = priv->scale->allocation.width / 2;
827 m = priv->scale->allocation.height -
828 GTK_RANGE (priv->scale)->min_slider_size;
829 e->y = ((1.0 - v) * m) + GTK_RANGE (priv->scale)->min_slider_size / 2;
830 gtk_widget_event (priv->scale, (GdkEvent *) e);
831 e->window = button_event->window;
832 gdk_event_free ((GdkEvent *) e);
835 gtk_widget_grab_focus (priv->scale);
837 priv->pop_time = time;
843 gtk_scale_button_press (GtkWidget *widget,
844 GdkEventButton *event)
846 return gtk_scale_popup (widget, (GdkEvent *) event, event->time);
850 gtk_scale_button_popup_from_bindings (GtkWidget *widget)
854 ev = gdk_event_new (GDK_KEY_RELEASE);
855 gtk_scale_popup (widget, ev, GDK_CURRENT_TIME);
860 gtk_scale_button_key_release (GtkWidget *widget,
863 return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
866 /* This is called when the grab is broken for
867 * either the dock, or the scale itself */
869 gtk_scale_button_grab_notify (GtkScaleButton *button,
870 gboolean was_grabbed)
873 GtkScaleButtonPrivate *priv;
875 if (was_grabbed != FALSE)
880 if (!GTK_WIDGET_HAS_GRAB (priv->dock))
883 if (gtk_widget_is_ancestor (gtk_grab_get_current (), priv->dock))
886 display = gtk_widget_get_display (priv->dock);
887 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
888 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
889 gtk_grab_remove (priv->dock);
892 gtk_widget_hide (priv->dock);
893 priv->timeout = FALSE;
897 * +/- button callbacks.
901 cb_button_timeout (gpointer user_data)
903 GtkScaleButton *button;
904 GtkScaleButtonPrivate *priv;
909 button = GTK_SCALE_BUTTON (user_data);
912 if (priv->click_id == 0)
915 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
917 val = gtk_scale_button_get_value (button);
918 val += priv->direction;
919 if (val <= adj->lower)
924 else if (val > adj->upper)
929 gtk_scale_button_set_value (button, val);
933 g_source_remove (priv->click_id);
941 cb_button_press (GtkWidget *widget,
942 GdkEventButton *event,
945 GtkScaleButton *button;
946 GtkScaleButtonPrivate *priv;
949 button = GTK_SCALE_BUTTON (user_data);
951 adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
953 if (priv->click_id != 0)
954 g_source_remove (priv->click_id);
956 if (widget == button->plus_button)
957 priv->direction = fabs (adj->page_increment);
959 priv->direction = - fabs (adj->page_increment);
961 priv->click_id = gdk_threads_add_timeout (priv->click_timeout,
964 cb_button_timeout (button);
970 cb_button_release (GtkWidget *widget,
971 GdkEventButton *event,
974 GtkScaleButton *button;
975 GtkScaleButtonPrivate *priv;
977 button = GTK_SCALE_BUTTON (user_data);
980 if (priv->click_id != 0)
982 g_source_remove (priv->click_id);
990 cb_dock_grab_notify (GtkWidget *widget,
991 gboolean was_grabbed,
994 GtkScaleButton *button = (GtkScaleButton *) user_data;
996 gtk_scale_button_grab_notify (button, was_grabbed);
1000 cb_dock_grab_broken_event (GtkWidget *widget,
1001 gboolean was_grabbed,
1004 GtkScaleButton *button = (GtkScaleButton *) user_data;
1006 gtk_scale_button_grab_notify (button, FALSE);
1016 gtk_scale_button_release_grab (GtkScaleButton *button,
1017 GdkEventButton *event)
1020 GdkDisplay *display;
1021 GtkScaleButtonPrivate *priv;
1023 priv = button->priv;
1026 display = gtk_widget_get_display (GTK_WIDGET (button));
1027 gdk_display_keyboard_ungrab (display, event->time);
1028 gdk_display_pointer_ungrab (display, event->time);
1029 gtk_grab_remove (priv->dock);
1032 gtk_widget_hide (priv->dock);
1033 priv->timeout = FALSE;
1035 e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
1036 e->window = GTK_WIDGET (button)->window;
1037 e->type = GDK_BUTTON_RELEASE;
1038 gtk_widget_event (GTK_WIDGET (button), (GdkEvent *) e);
1039 e->window = event->window;
1040 gdk_event_free ((GdkEvent *) e);
1044 cb_dock_button_press (GtkWidget *widget,
1045 GdkEventButton *event,
1048 GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
1050 if (event->type == GDK_BUTTON_PRESS)
1052 gtk_scale_button_release_grab (button, event);
1060 gtk_scale_button_popdown_from_bindings (GtkWidget *widget)
1062 GtkScaleButton *button;
1063 GtkScaleButtonPrivate *priv;
1064 GdkDisplay *display;
1066 button = GTK_SCALE_BUTTON (widget);
1067 priv = button->priv;
1070 display = gtk_widget_get_display (widget);
1071 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1072 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1073 gtk_grab_remove (priv->dock);
1076 gtk_widget_hide (priv->dock);
1077 priv->timeout = FALSE;
1081 cb_dock_key_release (GtkWidget *widget,
1085 if (event->keyval == GDK_Escape)
1087 gtk_scale_button_popdown_from_bindings (GTK_WIDGET (user_data));
1091 if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
1093 /* The popup hasn't managed the event, pass onto the button */
1094 gtk_bindings_activate_event (GTK_OBJECT (user_data), event);
1101 cb_scale_grab_notify (GtkWidget *widget,
1102 gboolean was_grabbed,
1105 GtkScaleButton *button = (GtkScaleButton *) user_data;
1107 gtk_scale_button_grab_notify (button, was_grabbed);
1114 #define GTK_TYPE_SCALE_BUTTON_SCALE \
1115 (gtk_scale_button_scale_get_type ())
1116 #define GTK_SCALE_BUTTON_SCALE(obj) \
1117 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE_BUTTON_SCALE, \
1118 GtkScaleButtonScale))
1120 typedef struct _GtkScaleButtonScaleClass {
1121 GtkVScaleClass parent_class;
1122 } GtkScaleButtonScaleClass;
1124 typedef struct _GtkScaleButtonScale {
1126 GtkScaleButton *button;
1127 } GtkScaleButtonScale;
1129 static GType gtk_scale_button_scale_get_type (void);
1130 static void gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass);
1131 static gboolean gtk_scale_button_scale_press (GtkWidget *widget,
1132 GdkEventButton *event);
1133 static gboolean gtk_scale_button_scale_release (GtkWidget *widget,
1134 GdkEventButton *event);
1136 G_DEFINE_TYPE (GtkScaleButtonScale, gtk_scale_button_scale, GTK_TYPE_VSCALE)
1139 gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass)
1141 GtkWidgetClass *gtkwidget_class = GTK_WIDGET_CLASS (klass);
1142 GtkRangeClass *gtkrange_class = GTK_RANGE_CLASS (klass);
1144 gtkwidget_class->button_press_event = gtk_scale_button_scale_press;
1145 gtkwidget_class->button_release_event = gtk_scale_button_scale_release;
1146 gtkrange_class->value_changed = gtk_scale_button_scale_value_changed;
1150 gtk_scale_button_scale_init (GtkScaleButtonScale *scale)
1155 gtk_scale_button_scale_new (GtkScaleButton *button,
1160 GtkScaleButtonScale *scale;
1161 GtkScaleButtonPrivate *priv;
1164 priv = button->priv;
1165 scale = g_object_new (GTK_TYPE_SCALE_BUTTON_SCALE, NULL);
1166 adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
1167 gtk_range_set_adjustment (GTK_RANGE (scale), GTK_ADJUSTMENT (adj));
1168 scale->button = button;
1170 return GTK_WIDGET (scale);
1174 gtk_scale_button_scale_press (GtkWidget *widget,
1175 GdkEventButton *event)
1177 GtkScaleButtonScale *scale;
1178 GtkScaleButtonPrivate *priv;
1180 scale = GTK_SCALE_BUTTON_SCALE (widget);
1181 priv = scale->button->priv;
1183 /* the scale will grab input; if we have input grabbed, all goes
1184 * horribly wrong, so let's not do that. */
1185 gtk_grab_remove (priv->dock);
1187 return GTK_WIDGET_CLASS (gtk_scale_button_scale_parent_class)->button_press_event (widget, event);
1191 gtk_scale_button_scale_release (GtkWidget *widget,
1192 GdkEventButton *event)
1194 GtkScaleButtonScale *scale;
1195 GtkScaleButtonPrivate *priv;
1196 GtkWidgetClass *widget_class;
1199 scale = GTK_SCALE_BUTTON_SCALE (widget);
1200 priv = scale->button->priv;
1202 widget_class = GTK_WIDGET_CLASS (gtk_scale_button_scale_parent_class);
1206 /* if we did a quick click, leave the window open; else, hide it */
1207 if (event->time > priv->pop_time + priv->click_timeout)
1210 gtk_scale_button_release_grab (scale->button, event);
1211 widget_class->button_release_event (widget, event);
1216 priv->timeout = FALSE;
1219 res = widget_class->button_release_event (widget, event);
1221 /* the scale will release input; right after that, we *have to* grab
1222 * it back so we can catch out-of-scale clicks and hide the popup,
1223 * so I basically want a g_signal_connect_after_always(), but I can't
1224 * find that, so we do this complex 'first-call-parent-then-do-actual-
1225 * action' thingy... */
1226 gtk_grab_add (priv->dock);
1232 gtk_scale_button_update_icon (GtkScaleButton *button)
1234 GtkScaleButtonPrivate *priv;
1241 priv = button->priv;
1243 if (!priv->icon_list || priv->icon_list[0] == '\0')
1245 gtk_image_set_from_stock (GTK_IMAGE (priv->image),
1246 GTK_STOCK_MISSING_IMAGE,
1251 num_icons = g_strv_length (priv->icon_list);
1253 /* The 1-icon special case */
1256 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1262 range = GTK_RANGE (priv->scale);
1263 adj = gtk_range_get_adjustment (range);
1264 value = gtk_scale_button_get_value (button);
1266 /* The 2-icons special case */
1270 limit = (adj->upper - adj->lower) / 2 + adj->lower;
1272 name = priv->icon_list[0];
1274 name = priv->icon_list[1];
1276 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1282 /* With 3 or more icons */
1283 if (value == adj->lower)
1285 name = priv->icon_list[0];
1287 else if (value == adj->upper)
1289 name = priv->icon_list[1];
1296 step = (adj->upper - adj->lower) / (num_icons - 2);
1297 i = (guint) ((value - adj->lower) / step) + 2;
1298 g_assert (i < num_icons);
1299 name = priv->icon_list[i];
1302 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
1308 gtk_scale_button_scale_value_changed (GtkRange *range)
1310 GtkScaleButtonScale *scale = GTK_SCALE_BUTTON_SCALE (range);
1311 GtkScaleButton *button = scale->button;
1314 value = gtk_range_get_value (range);
1316 gtk_scale_button_update_icon (button);
1318 g_signal_emit (button, signals[VALUE_CHANGED], 0, value);
1319 g_object_notify (G_OBJECT (button), "value");
1323 #define __GTK_SCALE_BUTTON_C__
1324 #include "gtkaliasdef.c"