1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 * Copyright (C) 2001 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2004. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
33 #include "gtkmainprivate.h"
34 #include "gtkmarshalers.h"
35 #include "gtkorientableprivate.h"
38 #include "gtkscrollbar.h"
39 #include "gtkwindow.h"
40 #include "gtkprivate.h"
42 #include "gtktypebuiltins.h"
43 #include "a11y/gtkrangeaccessible.h"
47 * @Short_description: Base class for widgets which visualize an adjustment
50 * #GtkRange is the common base class for widgets which visualize an
51 * adjustment, e.g #GtkScale or #GtkScrollbar.
53 * Apart from signals for monitoring the parameters of the adjustment,
54 * #GtkRange provides properties and methods for influencing the sensitivity
55 * of the "steppers". It also provides properties and methods for setting a
56 * "fill level" on range widgets. See gtk_range_set_fill_level().
60 #define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
61 #define UPDATE_DELAY 300 /* Delay for queued update */
63 typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
73 MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
76 struct _GtkRangePrivate
78 MouseLocation mouse_location;
79 /* last mouse coords we got, or -1 if mouse is outside the range */
82 MouseLocation grab_location; /* "grabbed" mouse location, OUTSIDE for no grab */
84 GtkRangeStepTimer *timer;
86 GtkAdjustment *adjustment;
87 GtkSensitivityType lower_sensitivity;
88 GtkSensitivityType upper_sensitivity;
90 GdkDevice *grab_device;
91 GdkRectangle range_rect; /* Area of entire stepper + trough assembly in widget->window coords */
92 /* These are in widget->window coordinates */
93 GdkRectangle stepper_a;
94 GdkRectangle stepper_b;
95 GdkRectangle stepper_c;
96 GdkRectangle stepper_d;
97 GdkRectangle trough; /* The trough rectangle is the area the thumb can slide in, not the entire range_rect */
99 GdkWindow *event_window;
101 GQuark slider_detail_quark;
102 GQuark stepper_detail_quark[4];
104 GtkOrientation orientation;
110 gint min_slider_size;
112 gint round_digits; /* Round off value to this many digits, -1 for no rounding */
113 gint slide_initial_slider_position;
114 gint slide_initial_coordinate;
115 gint slider_start; /* Slider range along the long dimension, in widget->window coords */
120 /* Steppers are: < > ---- < >
123 guint has_stepper_a : 1;
124 guint has_stepper_b : 1;
125 guint has_stepper_c : 1;
126 guint has_stepper_d : 1;
130 guint need_recalc : 1;
131 guint recalc_marks : 1;
132 guint slider_size_fixed : 1;
133 guint trough_click_forward : 1; /* trough click was on the forward side of slider */
135 /* Stepper sensitivity */
136 guint lower_sensitive : 1;
137 guint upper_sensitive : 1;
140 guint show_fill_level : 1;
141 guint restrict_to_fill_level : 1;
143 guint grab_button : 8; /* 0 if none */
152 PROP_LOWER_STEPPER_SENSITIVITY,
153 PROP_UPPER_STEPPER_SENSITIVITY,
154 PROP_SHOW_FILL_LEVEL,
155 PROP_RESTRICT_TO_FILL_LEVEL,
175 static void gtk_range_set_property (GObject *object,
179 static void gtk_range_get_property (GObject *object,
183 static void gtk_range_destroy (GtkWidget *widget);
184 static void gtk_range_get_preferred_width
188 static void gtk_range_get_preferred_height
192 static void gtk_range_size_allocate (GtkWidget *widget,
193 GtkAllocation *allocation);
194 static void gtk_range_hierarchy_changed (GtkWidget *widget,
195 GtkWidget *previous_toplevel);
196 static void gtk_range_realize (GtkWidget *widget);
197 static void gtk_range_unrealize (GtkWidget *widget);
198 static void gtk_range_map (GtkWidget *widget);
199 static void gtk_range_unmap (GtkWidget *widget);
200 static gboolean gtk_range_draw (GtkWidget *widget,
202 static gboolean gtk_range_button_press (GtkWidget *widget,
203 GdkEventButton *event);
204 static gboolean gtk_range_button_release (GtkWidget *widget,
205 GdkEventButton *event);
206 static gboolean gtk_range_motion_notify (GtkWidget *widget,
207 GdkEventMotion *event);
208 static gboolean gtk_range_enter_notify (GtkWidget *widget,
209 GdkEventCrossing *event);
210 static gboolean gtk_range_leave_notify (GtkWidget *widget,
211 GdkEventCrossing *event);
212 static gboolean gtk_range_grab_broken (GtkWidget *widget,
213 GdkEventGrabBroken *event);
214 static void gtk_range_grab_notify (GtkWidget *widget,
215 gboolean was_grabbed);
216 static void gtk_range_state_flags_changed (GtkWidget *widget,
217 GtkStateFlags previous_state);
218 static gboolean gtk_range_scroll_event (GtkWidget *widget,
219 GdkEventScroll *event);
220 static void gtk_range_style_updated (GtkWidget *widget);
221 static void update_slider_position (GtkRange *range,
224 static void stop_scrolling (GtkRange *range);
225 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
226 GtkAllocation *allocation);
230 static void gtk_range_move_slider (GtkRange *range,
231 GtkScrollType scroll);
234 static gboolean gtk_range_scroll (GtkRange *range,
235 GtkScrollType scroll);
236 static gboolean gtk_range_update_mouse_location (GtkRange *range);
237 static void gtk_range_calc_layout (GtkRange *range,
238 gdouble adjustment_value);
239 static void gtk_range_calc_marks (GtkRange *range);
240 static void gtk_range_get_props (GtkRange *range,
245 gint *stepper_spacing,
246 gboolean *trough_under_steppers,
247 gint *arrow_displacement_x,
248 gint *arrow_displacement_y);
249 static void gtk_range_calc_request (GtkRange *range,
254 gint stepper_spacing,
255 GdkRectangle *range_rect,
258 gboolean *has_steppers_ab,
259 gboolean *has_steppers_cd,
260 gint *slider_length_p);
261 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
263 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
265 static void gtk_range_add_step_timer (GtkRange *range,
267 static void gtk_range_remove_step_timer (GtkRange *range);
268 static GdkRectangle* get_area (GtkRange *range,
269 MouseLocation location);
270 static gboolean gtk_range_real_change_value (GtkRange *range,
271 GtkScrollType scroll,
273 static gboolean gtk_range_key_press (GtkWidget *range,
277 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
278 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
281 static guint signals[LAST_SIGNAL];
285 gtk_range_class_init (GtkRangeClass *class)
287 GObjectClass *gobject_class;
288 GtkWidgetClass *widget_class;
290 gobject_class = G_OBJECT_CLASS (class);
291 widget_class = (GtkWidgetClass*) class;
293 gobject_class->set_property = gtk_range_set_property;
294 gobject_class->get_property = gtk_range_get_property;
296 widget_class->destroy = gtk_range_destroy;
297 widget_class->get_preferred_width = gtk_range_get_preferred_width;
298 widget_class->get_preferred_height = gtk_range_get_preferred_height;
299 widget_class->size_allocate = gtk_range_size_allocate;
300 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
301 widget_class->realize = gtk_range_realize;
302 widget_class->unrealize = gtk_range_unrealize;
303 widget_class->map = gtk_range_map;
304 widget_class->unmap = gtk_range_unmap;
305 widget_class->draw = gtk_range_draw;
306 widget_class->button_press_event = gtk_range_button_press;
307 widget_class->button_release_event = gtk_range_button_release;
308 widget_class->motion_notify_event = gtk_range_motion_notify;
309 widget_class->scroll_event = gtk_range_scroll_event;
310 widget_class->enter_notify_event = gtk_range_enter_notify;
311 widget_class->leave_notify_event = gtk_range_leave_notify;
312 widget_class->grab_broken_event = gtk_range_grab_broken;
313 widget_class->grab_notify = gtk_range_grab_notify;
314 widget_class->state_flags_changed = gtk_range_state_flags_changed;
315 widget_class->style_updated = gtk_range_style_updated;
316 widget_class->key_press_event = gtk_range_key_press;
318 class->move_slider = gtk_range_move_slider;
319 class->change_value = gtk_range_real_change_value;
321 class->slider_detail = "slider";
322 class->stepper_detail = "stepper";
325 * GtkRange::value-changed:
326 * @range: the #GtkRange that received the signal
328 * Emitted when the range value changes.
330 signals[VALUE_CHANGED] =
331 g_signal_new (I_("value-changed"),
332 G_TYPE_FROM_CLASS (gobject_class),
334 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
336 _gtk_marshal_VOID__VOID,
340 * GtkRange::adjust-bounds:
341 * @range: the #GtkRange that received the signal
342 * @value: the value before we clamp
344 * Emitted before clamping a value, to give the application a
345 * chance to adjust the bounds.
347 signals[ADJUST_BOUNDS] =
348 g_signal_new (I_("adjust-bounds"),
349 G_TYPE_FROM_CLASS (gobject_class),
351 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
353 _gtk_marshal_VOID__DOUBLE,
358 * GtkRange::move-slider:
359 * @range: the #GtkRange that received the signal
360 * @step: how to move the slider
362 * Virtual function that moves the slider. Used for keybindings.
364 signals[MOVE_SLIDER] =
365 g_signal_new (I_("move-slider"),
366 G_TYPE_FROM_CLASS (gobject_class),
367 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
368 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
370 _gtk_marshal_VOID__ENUM,
372 GTK_TYPE_SCROLL_TYPE);
375 * GtkRange::change-value:
376 * @range: the #GtkRange that received the signal
377 * @scroll: the type of scroll action that was performed
378 * @value: the new value resulting from the scroll action
379 * @returns: %TRUE to prevent other handlers from being invoked for the
380 * signal, %FALSE to propagate the signal further
382 * The #GtkRange::change-value signal is emitted when a scroll action is
383 * performed on a range. It allows an application to determine the
384 * type of scroll event that occurred and the resultant new value.
385 * The application can handle the event itself and return %TRUE to
386 * prevent further processing. Or, by returning %FALSE, it can pass
387 * the event to other handlers until the default GTK+ handler is
390 * The value parameter is unrounded. An application that overrides
391 * the GtkRange::change-value signal is responsible for clamping the
392 * value to the desired number of decimal digits; the default GTK+
393 * handler clamps the value based on #GtkRange:round-digits.
395 * It is not possible to use delayed update policies in an overridden
396 * #GtkRange::change-value handler.
400 signals[CHANGE_VALUE] =
401 g_signal_new (I_("change-value"),
402 G_TYPE_FROM_CLASS (gobject_class),
404 G_STRUCT_OFFSET (GtkRangeClass, change_value),
405 _gtk_boolean_handled_accumulator, NULL,
406 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
408 GTK_TYPE_SCROLL_TYPE,
411 g_object_class_override_property (gobject_class,
415 g_object_class_install_property (gobject_class,
417 g_param_spec_object ("adjustment",
419 P_("The GtkAdjustment that contains the current value of this range object"),
421 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
423 g_object_class_install_property (gobject_class,
425 g_param_spec_boolean ("inverted",
427 P_("Invert direction slider moves to increase range value"),
429 GTK_PARAM_READWRITE));
431 g_object_class_install_property (gobject_class,
432 PROP_LOWER_STEPPER_SENSITIVITY,
433 g_param_spec_enum ("lower-stepper-sensitivity",
434 P_("Lower stepper sensitivity"),
435 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
436 GTK_TYPE_SENSITIVITY_TYPE,
437 GTK_SENSITIVITY_AUTO,
438 GTK_PARAM_READWRITE));
440 g_object_class_install_property (gobject_class,
441 PROP_UPPER_STEPPER_SENSITIVITY,
442 g_param_spec_enum ("upper-stepper-sensitivity",
443 P_("Upper stepper sensitivity"),
444 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
445 GTK_TYPE_SENSITIVITY_TYPE,
446 GTK_SENSITIVITY_AUTO,
447 GTK_PARAM_READWRITE));
450 * GtkRange:show-fill-level:
452 * The show-fill-level property controls whether fill level indicator
453 * graphics are displayed on the trough. See
454 * gtk_range_set_show_fill_level().
458 g_object_class_install_property (gobject_class,
459 PROP_SHOW_FILL_LEVEL,
460 g_param_spec_boolean ("show-fill-level",
461 P_("Show Fill Level"),
462 P_("Whether to display a fill level indicator graphics on trough."),
464 GTK_PARAM_READWRITE));
467 * GtkRange:restrict-to-fill-level:
469 * The restrict-to-fill-level property controls whether slider
470 * movement is restricted to an upper boundary set by the
471 * fill level. See gtk_range_set_restrict_to_fill_level().
475 g_object_class_install_property (gobject_class,
476 PROP_RESTRICT_TO_FILL_LEVEL,
477 g_param_spec_boolean ("restrict-to-fill-level",
478 P_("Restrict to Fill Level"),
479 P_("Whether to restrict the upper boundary to the fill level."),
481 GTK_PARAM_READWRITE));
484 * GtkRange:fill-level:
486 * The fill level (e.g. prebuffering of a network stream).
487 * See gtk_range_set_fill_level().
491 g_object_class_install_property (gobject_class,
493 g_param_spec_double ("fill-level",
495 P_("The fill level."),
499 GTK_PARAM_READWRITE));
502 * GtkRange:round-digits:
504 * The number of digits to round the value to when
505 * it changes, or -1. See #GtkRange::change-value.
509 g_object_class_install_property (gobject_class,
511 g_param_spec_int ("round-digits",
513 P_("The number of digits to round the value to."),
517 GTK_PARAM_READWRITE));
519 gtk_widget_class_install_style_property (widget_class,
520 g_param_spec_int ("slider-width",
522 P_("Width of scrollbar or scale thumb"),
526 GTK_PARAM_READABLE));
527 gtk_widget_class_install_style_property (widget_class,
528 g_param_spec_int ("trough-border",
530 P_("Spacing between thumb/steppers and outer trough bevel"),
534 GTK_PARAM_READABLE));
535 gtk_widget_class_install_style_property (widget_class,
536 g_param_spec_int ("stepper-size",
538 P_("Length of step buttons at ends"),
542 GTK_PARAM_READABLE));
544 * GtkRange:stepper-spacing:
546 * The spacing between the stepper buttons and thumb. Note that
547 * stepper-spacing won't have any effect if there are no steppers.
549 gtk_widget_class_install_style_property (widget_class,
550 g_param_spec_int ("stepper-spacing",
551 P_("Stepper Spacing"),
552 P_("Spacing between step buttons and thumb"),
556 GTK_PARAM_READABLE));
557 gtk_widget_class_install_style_property (widget_class,
558 g_param_spec_int ("arrow-displacement-x",
559 P_("Arrow X Displacement"),
560 P_("How far in the x direction to move the arrow when the button is depressed"),
564 GTK_PARAM_READABLE));
565 gtk_widget_class_install_style_property (widget_class,
566 g_param_spec_int ("arrow-displacement-y",
567 P_("Arrow Y Displacement"),
568 P_("How far in the y direction to move the arrow when the button is depressed"),
572 GTK_PARAM_READABLE));
575 * GtkRange:trough-under-steppers:
577 * Whether to draw the trough across the full length of the range or
578 * to exclude the steppers and their spacing.
582 gtk_widget_class_install_style_property (widget_class,
583 g_param_spec_boolean ("trough-under-steppers",
584 P_("Trough Under Steppers"),
585 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
587 GTK_PARAM_READABLE));
590 * GtkRange:arrow-scaling:
592 * The arrow size proportion relative to the scroll button size.
596 gtk_widget_class_install_style_property (widget_class,
597 g_param_spec_float ("arrow-scaling",
599 P_("Arrow scaling with regard to scroll button size"),
601 GTK_PARAM_READABLE));
603 g_type_class_add_private (class, sizeof (GtkRangePrivate));
605 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_RANGE_ACCESSIBLE);
609 gtk_range_set_property (GObject *object,
614 GtkRange *range = GTK_RANGE (object);
615 GtkRangePrivate *priv = range->priv;
619 case PROP_ORIENTATION:
620 priv->orientation = g_value_get_enum (value);
622 priv->slider_detail_quark = 0;
623 priv->stepper_detail_quark[0] = 0;
624 priv->stepper_detail_quark[1] = 0;
625 priv->stepper_detail_quark[2] = 0;
626 priv->stepper_detail_quark[3] = 0;
628 _gtk_orientable_set_style_classes (GTK_ORIENTABLE (range));
629 gtk_widget_queue_resize (GTK_WIDGET (range));
631 case PROP_ADJUSTMENT:
632 gtk_range_set_adjustment (range, g_value_get_object (value));
635 gtk_range_set_inverted (range, g_value_get_boolean (value));
637 case PROP_LOWER_STEPPER_SENSITIVITY:
638 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
640 case PROP_UPPER_STEPPER_SENSITIVITY:
641 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
643 case PROP_SHOW_FILL_LEVEL:
644 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
646 case PROP_RESTRICT_TO_FILL_LEVEL:
647 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
649 case PROP_FILL_LEVEL:
650 gtk_range_set_fill_level (range, g_value_get_double (value));
652 case PROP_ROUND_DIGITS:
653 gtk_range_set_round_digits (range, g_value_get_int (value));
656 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
662 gtk_range_get_property (GObject *object,
667 GtkRange *range = GTK_RANGE (object);
668 GtkRangePrivate *priv = range->priv;
672 case PROP_ORIENTATION:
673 g_value_set_enum (value, priv->orientation);
675 case PROP_ADJUSTMENT:
676 g_value_set_object (value, priv->adjustment);
679 g_value_set_boolean (value, priv->inverted);
681 case PROP_LOWER_STEPPER_SENSITIVITY:
682 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
684 case PROP_UPPER_STEPPER_SENSITIVITY:
685 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
687 case PROP_SHOW_FILL_LEVEL:
688 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
690 case PROP_RESTRICT_TO_FILL_LEVEL:
691 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
693 case PROP_FILL_LEVEL:
694 g_value_set_double (value, gtk_range_get_fill_level (range));
696 case PROP_ROUND_DIGITS:
697 g_value_set_int (value, gtk_range_get_round_digits (range));
700 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
706 gtk_range_init (GtkRange *range)
708 GtkRangePrivate *priv;
710 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
715 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
717 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
718 priv->adjustment = NULL;
719 priv->inverted = FALSE;
720 priv->flippable = FALSE;
721 priv->min_slider_size = 1;
722 priv->has_stepper_a = FALSE;
723 priv->has_stepper_b = FALSE;
724 priv->has_stepper_c = FALSE;
725 priv->has_stepper_d = FALSE;
726 priv->need_recalc = TRUE;
727 priv->round_digits = -1;
728 priv->mouse_location = MOUSE_OUTSIDE;
731 priv->grab_location = MOUSE_OUTSIDE;
732 priv->grab_button = 0;
733 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
734 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
735 priv->lower_sensitive = TRUE;
736 priv->upper_sensitive = TRUE;
737 priv->show_fill_level = FALSE;
738 priv->restrict_to_fill_level = TRUE;
739 priv->fill_level = G_MAXDOUBLE;
744 * gtk_range_get_adjustment:
745 * @range: a #GtkRange
747 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
748 * See gtk_range_set_adjustment() for details.
749 * The return value does not have a reference added, so should not
752 * Return value: (transfer none): a #GtkAdjustment
755 gtk_range_get_adjustment (GtkRange *range)
757 GtkRangePrivate *priv;
759 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
763 if (!priv->adjustment)
764 gtk_range_set_adjustment (range, NULL);
766 return priv->adjustment;
770 * gtk_range_set_adjustment:
771 * @range: a #GtkRange
772 * @adjustment: a #GtkAdjustment
774 * Sets the adjustment to be used as the "model" object for this range
775 * widget. The adjustment indicates the current range value, the
776 * minimum and maximum range values, the step/page increments used
777 * for keybindings and scrolling, and the page size. The page size
778 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
779 * indicates the size of the visible area of the widget being scrolled.
780 * The page size affects the size of the scrollbar slider.
783 gtk_range_set_adjustment (GtkRange *range,
784 GtkAdjustment *adjustment)
786 GtkRangePrivate *priv;
788 g_return_if_fail (GTK_IS_RANGE (range));
793 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
795 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
797 if (priv->adjustment != adjustment)
799 if (priv->adjustment)
801 g_signal_handlers_disconnect_by_func (priv->adjustment,
802 gtk_range_adjustment_changed,
804 g_signal_handlers_disconnect_by_func (priv->adjustment,
805 gtk_range_adjustment_value_changed,
807 g_object_unref (priv->adjustment);
810 priv->adjustment = adjustment;
811 g_object_ref_sink (adjustment);
813 g_signal_connect (adjustment, "changed",
814 G_CALLBACK (gtk_range_adjustment_changed),
816 g_signal_connect (adjustment, "value-changed",
817 G_CALLBACK (gtk_range_adjustment_value_changed),
820 gtk_range_adjustment_changed (adjustment, range);
821 g_object_notify (G_OBJECT (range), "adjustment");
826 * gtk_range_set_inverted:
827 * @range: a #GtkRange
828 * @setting: %TRUE to invert the range
830 * Ranges normally move from lower to higher values as the
831 * slider moves from top to bottom or left to right. Inverted
832 * ranges have higher values at the top or on the right rather than
833 * on the bottom or left.
836 gtk_range_set_inverted (GtkRange *range,
839 GtkRangePrivate *priv;
841 g_return_if_fail (GTK_IS_RANGE (range));
845 setting = setting != FALSE;
847 if (setting != priv->inverted)
849 priv->inverted = setting;
850 g_object_notify (G_OBJECT (range), "inverted");
851 gtk_widget_queue_resize (GTK_WIDGET (range));
856 * gtk_range_get_inverted:
857 * @range: a #GtkRange
859 * Gets the value set by gtk_range_set_inverted().
861 * Return value: %TRUE if the range is inverted
864 gtk_range_get_inverted (GtkRange *range)
866 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
868 return range->priv->inverted;
872 * gtk_range_set_flippable:
873 * @range: a #GtkRange
874 * @flippable: %TRUE to make the range flippable
876 * If a range is flippable, it will switch its direction if it is
877 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
879 * See gtk_widget_get_direction().
884 gtk_range_set_flippable (GtkRange *range,
887 GtkRangePrivate *priv;
889 g_return_if_fail (GTK_IS_RANGE (range));
893 flippable = flippable ? TRUE : FALSE;
895 if (flippable != priv->flippable)
897 priv->flippable = flippable;
899 gtk_widget_queue_draw (GTK_WIDGET (range));
904 * gtk_range_get_flippable:
905 * @range: a #GtkRange
907 * Gets the value set by gtk_range_set_flippable().
909 * Return value: %TRUE if the range is flippable
914 gtk_range_get_flippable (GtkRange *range)
916 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
918 return range->priv->flippable;
922 * gtk_range_set_slider_size_fixed:
923 * @range: a #GtkRange
924 * @size_fixed: %TRUE to make the slider size constant
926 * Sets whether the range's slider has a fixed size, or a size that
927 * depends on its adjustment's page size.
929 * This function is useful mainly for #GtkRange subclasses.
934 gtk_range_set_slider_size_fixed (GtkRange *range,
937 GtkRangePrivate *priv;
939 g_return_if_fail (GTK_IS_RANGE (range));
943 if (size_fixed != priv->slider_size_fixed)
945 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
947 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
949 priv->need_recalc = TRUE;
950 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
951 gtk_widget_queue_draw (GTK_WIDGET (range));
957 * gtk_range_get_slider_size_fixed:
958 * @range: a #GtkRange
960 * This function is useful mainly for #GtkRange subclasses.
962 * See gtk_range_set_slider_size_fixed().
964 * Return value: whether the range's slider has a fixed size.
969 gtk_range_get_slider_size_fixed (GtkRange *range)
971 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
973 return range->priv->slider_size_fixed;
977 * gtk_range_set_min_slider_size:
978 * @range: a #GtkRange
979 * @min_size: The slider's minimum size
981 * Sets the minimum size of the range's slider.
983 * This function is useful mainly for #GtkRange subclasses.
988 gtk_range_set_min_slider_size (GtkRange *range,
991 GtkRangePrivate *priv;
993 g_return_if_fail (GTK_IS_RANGE (range));
994 g_return_if_fail (min_size > 0);
998 if (min_size != priv->min_slider_size)
1000 priv->min_slider_size = min_size;
1002 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1004 priv->need_recalc = TRUE;
1005 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1006 gtk_widget_queue_draw (GTK_WIDGET (range));
1012 * gtk_range_get_min_slider_size:
1013 * @range: a #GtkRange
1015 * This function is useful mainly for #GtkRange subclasses.
1017 * See gtk_range_set_min_slider_size().
1019 * Return value: The minimum size of the range's slider.
1024 gtk_range_get_min_slider_size (GtkRange *range)
1026 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1028 return range->priv->min_slider_size;
1032 * gtk_range_get_range_rect:
1033 * @range: a #GtkRange
1034 * @range_rect: (out): return location for the range rectangle
1036 * This function returns the area that contains the range's trough
1037 * and its steppers, in widget->window coordinates.
1039 * This function is useful mainly for #GtkRange subclasses.
1044 gtk_range_get_range_rect (GtkRange *range,
1045 GdkRectangle *range_rect)
1047 GtkRangePrivate *priv;
1049 g_return_if_fail (GTK_IS_RANGE (range));
1050 g_return_if_fail (range_rect != NULL);
1054 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1056 *range_rect = priv->range_rect;
1060 * gtk_range_get_slider_range:
1061 * @range: a #GtkRange
1062 * @slider_start: (out) (allow-none): return location for the slider's
1064 * @slider_end: (out) (allow-none): return location for the slider's
1067 * This function returns sliders range along the long dimension,
1068 * in widget->window coordinates.
1070 * This function is useful mainly for #GtkRange subclasses.
1075 gtk_range_get_slider_range (GtkRange *range,
1079 GtkRangePrivate *priv;
1081 g_return_if_fail (GTK_IS_RANGE (range));
1085 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1088 *slider_start = priv->slider_start;
1091 *slider_end = priv->slider_end;
1095 * gtk_range_set_lower_stepper_sensitivity:
1096 * @range: a #GtkRange
1097 * @sensitivity: the lower stepper's sensitivity policy.
1099 * Sets the sensitivity policy for the stepper that points to the
1100 * 'lower' end of the GtkRange's adjustment.
1105 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1106 GtkSensitivityType sensitivity)
1108 GtkRangePrivate *priv;
1110 g_return_if_fail (GTK_IS_RANGE (range));
1114 if (priv->lower_sensitivity != sensitivity)
1116 priv->lower_sensitivity = sensitivity;
1118 priv->need_recalc = TRUE;
1119 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1120 gtk_widget_queue_draw (GTK_WIDGET (range));
1122 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1127 * gtk_range_get_lower_stepper_sensitivity:
1128 * @range: a #GtkRange
1130 * Gets the sensitivity policy for the stepper that points to the
1131 * 'lower' end of the GtkRange's adjustment.
1133 * Return value: The lower stepper's sensitivity policy.
1138 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1140 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1142 return range->priv->lower_sensitivity;
1146 * gtk_range_set_upper_stepper_sensitivity:
1147 * @range: a #GtkRange
1148 * @sensitivity: the upper stepper's sensitivity policy.
1150 * Sets the sensitivity policy for the stepper that points to the
1151 * 'upper' end of the GtkRange's adjustment.
1156 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1157 GtkSensitivityType sensitivity)
1159 GtkRangePrivate *priv;
1161 g_return_if_fail (GTK_IS_RANGE (range));
1165 if (priv->upper_sensitivity != sensitivity)
1167 priv->upper_sensitivity = sensitivity;
1169 priv->need_recalc = TRUE;
1170 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1171 gtk_widget_queue_draw (GTK_WIDGET (range));
1173 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1178 * gtk_range_get_upper_stepper_sensitivity:
1179 * @range: a #GtkRange
1181 * Gets the sensitivity policy for the stepper that points to the
1182 * 'upper' end of the GtkRange's adjustment.
1184 * Return value: The upper stepper's sensitivity policy.
1189 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1191 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1193 return range->priv->upper_sensitivity;
1197 * gtk_range_set_increments:
1198 * @range: a #GtkRange
1202 * Sets the step and page sizes for the range.
1203 * The step size is used when the user clicks the #GtkScrollbar
1204 * arrows or moves #GtkScale via arrow keys. The page size
1205 * is used for example when moving via Page Up or Page Down keys.
1208 gtk_range_set_increments (GtkRange *range,
1212 GtkAdjustment *adjustment;
1214 g_return_if_fail (GTK_IS_RANGE (range));
1216 adjustment = range->priv->adjustment;
1218 gtk_adjustment_configure (adjustment,
1219 gtk_adjustment_get_value (adjustment),
1220 gtk_adjustment_get_lower (adjustment),
1221 gtk_adjustment_get_upper (adjustment),
1224 gtk_adjustment_get_page_size (adjustment));
1228 * gtk_range_set_range:
1229 * @range: a #GtkRange
1230 * @min: minimum range value
1231 * @max: maximum range value
1233 * Sets the allowable values in the #GtkRange, and clamps the range
1234 * value to be between @min and @max. (If the range has a non-zero
1235 * page size, it is clamped between @min and @max - page-size.)
1238 gtk_range_set_range (GtkRange *range,
1242 GtkRangePrivate *priv;
1243 GtkAdjustment *adjustment;
1246 g_return_if_fail (GTK_IS_RANGE (range));
1247 g_return_if_fail (min <= max);
1250 adjustment = priv->adjustment;
1252 value = gtk_adjustment_get_value (adjustment);
1253 if (priv->restrict_to_fill_level)
1254 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1257 gtk_adjustment_configure (adjustment,
1261 gtk_adjustment_get_step_increment (adjustment),
1262 gtk_adjustment_get_page_increment (adjustment),
1263 gtk_adjustment_get_page_size (adjustment));
1267 * gtk_range_set_value:
1268 * @range: a #GtkRange
1269 * @value: new value of the range
1271 * Sets the current value of the range; if the value is outside the
1272 * minimum or maximum range values, it will be clamped to fit inside
1273 * them. The range emits the #GtkRange::value-changed signal if the
1277 gtk_range_set_value (GtkRange *range,
1280 GtkRangePrivate *priv;
1282 g_return_if_fail (GTK_IS_RANGE (range));
1286 if (priv->restrict_to_fill_level)
1287 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1290 gtk_adjustment_set_value (priv->adjustment, value);
1294 * gtk_range_get_value:
1295 * @range: a #GtkRange
1297 * Gets the current value of the range.
1299 * Return value: current value of the range.
1302 gtk_range_get_value (GtkRange *range)
1304 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1306 return gtk_adjustment_get_value (range->priv->adjustment);
1310 * gtk_range_set_show_fill_level:
1311 * @range: A #GtkRange
1312 * @show_fill_level: Whether a fill level indicator graphics is shown.
1314 * Sets whether a graphical fill level is show on the trough. See
1315 * gtk_range_set_fill_level() for a general description of the fill
1321 gtk_range_set_show_fill_level (GtkRange *range,
1322 gboolean show_fill_level)
1324 GtkRangePrivate *priv;
1326 g_return_if_fail (GTK_IS_RANGE (range));
1330 show_fill_level = show_fill_level ? TRUE : FALSE;
1332 if (show_fill_level != priv->show_fill_level)
1334 priv->show_fill_level = show_fill_level;
1335 g_object_notify (G_OBJECT (range), "show-fill-level");
1336 gtk_widget_queue_draw (GTK_WIDGET (range));
1341 * gtk_range_get_show_fill_level:
1342 * @range: A #GtkRange
1344 * Gets whether the range displays the fill level graphically.
1346 * Return value: %TRUE if @range shows the fill level.
1351 gtk_range_get_show_fill_level (GtkRange *range)
1353 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1355 return range->priv->show_fill_level;
1359 * gtk_range_set_restrict_to_fill_level:
1360 * @range: A #GtkRange
1361 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1363 * Sets whether the slider is restricted to the fill level. See
1364 * gtk_range_set_fill_level() for a general description of the fill
1370 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1371 gboolean restrict_to_fill_level)
1373 GtkRangePrivate *priv;
1375 g_return_if_fail (GTK_IS_RANGE (range));
1379 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1381 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1383 priv->restrict_to_fill_level = restrict_to_fill_level;
1384 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1386 gtk_range_set_value (range, gtk_range_get_value (range));
1391 * gtk_range_get_restrict_to_fill_level:
1392 * @range: A #GtkRange
1394 * Gets whether the range is restricted to the fill level.
1396 * Return value: %TRUE if @range is restricted to the fill level.
1401 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1403 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1405 return range->priv->restrict_to_fill_level;
1409 * gtk_range_set_fill_level:
1410 * @range: a #GtkRange
1411 * @fill_level: the new position of the fill level indicator
1413 * Set the new position of the fill level indicator.
1415 * The "fill level" is probably best described by its most prominent
1416 * use case, which is an indicator for the amount of pre-buffering in
1417 * a streaming media player. In that use case, the value of the range
1418 * would indicate the current play position, and the fill level would
1419 * be the position up to which the file/stream has been downloaded.
1421 * This amount of prebuffering can be displayed on the range's trough
1422 * and is themeable separately from the trough. To enable fill level
1423 * display, use gtk_range_set_show_fill_level(). The range defaults
1424 * to not showing the fill level.
1426 * Additionally, it's possible to restrict the range's slider position
1427 * to values which are smaller than the fill level. This is controller
1428 * by gtk_range_set_restrict_to_fill_level() and is by default
1434 gtk_range_set_fill_level (GtkRange *range,
1437 GtkRangePrivate *priv;
1439 g_return_if_fail (GTK_IS_RANGE (range));
1443 if (fill_level != priv->fill_level)
1445 priv->fill_level = fill_level;
1446 g_object_notify (G_OBJECT (range), "fill-level");
1448 if (priv->show_fill_level)
1449 gtk_widget_queue_draw (GTK_WIDGET (range));
1451 if (priv->restrict_to_fill_level)
1452 gtk_range_set_value (range, gtk_range_get_value (range));
1457 * gtk_range_get_fill_level:
1458 * @range: A #GtkRange
1460 * Gets the current position of the fill level indicator.
1462 * Return value: The current fill level
1467 gtk_range_get_fill_level (GtkRange *range)
1469 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1471 return range->priv->fill_level;
1475 should_invert (GtkRange *range)
1477 GtkRangePrivate *priv = range->priv;
1479 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1481 (priv->inverted && !priv->flippable) ||
1482 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1483 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1485 return priv->inverted;
1489 gtk_range_destroy (GtkWidget *widget)
1491 GtkRange *range = GTK_RANGE (widget);
1492 GtkRangePrivate *priv = range->priv;
1494 gtk_range_remove_step_timer (range);
1496 if (priv->repaint_id)
1497 g_source_remove (priv->repaint_id);
1498 priv->repaint_id = 0;
1500 if (priv->adjustment)
1502 g_signal_handlers_disconnect_by_func (priv->adjustment,
1503 gtk_range_adjustment_changed,
1505 g_signal_handlers_disconnect_by_func (priv->adjustment,
1506 gtk_range_adjustment_value_changed,
1508 g_object_unref (priv->adjustment);
1509 priv->adjustment = NULL;
1514 g_free (priv->marks);
1516 g_free (priv->mark_pos);
1517 priv->mark_pos = NULL;
1521 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1525 gtk_range_get_preferred_width (GtkWidget *widget,
1530 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1531 GdkRectangle range_rect;
1534 range = GTK_RANGE (widget);
1536 gtk_range_get_props (range,
1537 &slider_width, &stepper_size,
1538 &focus_width, &trough_border,
1539 &stepper_spacing, NULL,
1542 gtk_range_calc_request (range,
1543 slider_width, stepper_size,
1544 focus_width, trough_border, stepper_spacing,
1545 &range_rect, &border, NULL, NULL, NULL, NULL);
1547 *minimum = *natural = range_rect.width + border.left + border.right;
1551 gtk_range_get_preferred_height (GtkWidget *widget,
1556 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1557 GdkRectangle range_rect;
1560 range = GTK_RANGE (widget);
1562 gtk_range_get_props (range,
1563 &slider_width, &stepper_size,
1564 &focus_width, &trough_border,
1565 &stepper_spacing, NULL,
1568 gtk_range_calc_request (range,
1569 slider_width, stepper_size,
1570 focus_width, trough_border, stepper_spacing,
1571 &range_rect, &border, NULL, NULL, NULL, NULL);
1573 *minimum = *natural = range_rect.height + border.top + border.bottom;
1577 modify_allocation_for_window_grip (GtkWidget *widget,
1578 GtkAllocation *allocation)
1580 GtkRange *range = GTK_RANGE (widget);
1581 GtkRangePrivate *priv = range->priv;
1582 GtkWidget *window, *parent;
1583 GdkRectangle grip_rect;
1584 GdkRectangle translated_rect;
1588 window = gtk_widget_get_toplevel (widget);
1589 if (!GTK_IS_WINDOW (window))
1592 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1595 /* Get the area of the window's corner grip */
1596 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1601 /* Translate the stepper's area into window coords.
1602 * This is slightly tricky. We can't just use
1603 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1604 * since that translates wrt to the _current_ allocation
1605 * and will lead to alternating between overlap and nonoverlap
1606 * for successive allocations.
1607 * Therefore, we find the window-widget to whose window allocation
1608 * is relative, and translate from there upwards.
1611 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1614 parent = gtk_widget_get_parent (parent);
1617 if (parent == window)
1618 translated_rect = *allocation;
1621 gtk_widget_translate_coordinates (gtk_widget_get_parent (widget),
1623 allocation->x, allocation->y,
1625 translated_rect.x = x;
1626 translated_rect.y = y;
1627 translated_rect.width = allocation->width;
1628 translated_rect.height = allocation->height;
1631 /* If the stepper button intersects the window resize grip.. */
1632 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, NULL))
1634 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1636 allocation->width -= grip_rect.width;
1637 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1638 allocation->x += grip_rect.width;
1642 allocation->height -= grip_rect.height;
1652 gtk_range_size_allocate (GtkWidget *widget,
1653 GtkAllocation *allocation)
1655 GtkRange *range = GTK_RANGE (widget);
1656 GtkRangePrivate *priv = range->priv;
1658 modify_allocation_for_window_grip (widget, allocation);
1659 gtk_widget_set_allocation (widget, allocation);
1661 priv->recalc_marks = TRUE;
1663 priv->need_recalc = TRUE;
1664 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1666 if (gtk_widget_get_realized (widget))
1667 gdk_window_move_resize (priv->event_window,
1668 allocation->x, allocation->y,
1669 allocation->width, allocation->height);
1673 resize_grip_visible_changed (GObject *object,
1677 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1681 gtk_range_hierarchy_changed (GtkWidget *widget,
1682 GtkWidget *previous_toplevel)
1686 if (previous_toplevel)
1687 g_signal_handlers_disconnect_by_func (previous_toplevel,
1688 G_CALLBACK (resize_grip_visible_changed),
1690 window = gtk_widget_get_toplevel (widget);
1691 if (gtk_widget_is_toplevel (window))
1692 g_signal_connect (window, "notify::resize-grip-visible",
1693 G_CALLBACK (resize_grip_visible_changed), widget);
1697 gtk_range_realize (GtkWidget *widget)
1699 GtkAllocation allocation;
1700 GtkRange *range = GTK_RANGE (widget);
1701 GtkRangePrivate *priv = range->priv;
1703 GdkWindowAttr attributes;
1704 gint attributes_mask;
1706 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1708 gtk_widget_set_realized (widget, TRUE);
1710 window = gtk_widget_get_parent_window (widget);
1711 gtk_widget_set_window (widget, window);
1712 g_object_ref (window);
1714 gtk_widget_get_allocation (widget, &allocation);
1715 if (modify_allocation_for_window_grip (widget, &allocation))
1716 gtk_widget_set_allocation (widget, &allocation);
1718 attributes.window_type = GDK_WINDOW_CHILD;
1719 attributes.x = allocation.x;
1720 attributes.y = allocation.y;
1721 attributes.width = allocation.width;
1722 attributes.height = allocation.height;
1723 attributes.wclass = GDK_INPUT_ONLY;
1724 attributes.event_mask = gtk_widget_get_events (widget);
1725 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1726 GDK_BUTTON_RELEASE_MASK |
1727 GDK_ENTER_NOTIFY_MASK |
1728 GDK_LEAVE_NOTIFY_MASK |
1729 GDK_POINTER_MOTION_MASK |
1730 GDK_POINTER_MOTION_HINT_MASK);
1732 attributes_mask = GDK_WA_X | GDK_WA_Y;
1734 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1735 &attributes, attributes_mask);
1736 gdk_window_set_user_data (priv->event_window, range);
1740 gtk_range_unrealize (GtkWidget *widget)
1742 GtkRange *range = GTK_RANGE (widget);
1743 GtkRangePrivate *priv = range->priv;
1745 gtk_range_remove_step_timer (range);
1747 gdk_window_set_user_data (priv->event_window, NULL);
1748 gdk_window_destroy (priv->event_window);
1749 priv->event_window = NULL;
1751 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1755 gtk_range_map (GtkWidget *widget)
1757 GtkRange *range = GTK_RANGE (widget);
1758 GtkRangePrivate *priv = range->priv;
1760 gdk_window_show (priv->event_window);
1762 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1766 gtk_range_unmap (GtkWidget *widget)
1768 GtkRange *range = GTK_RANGE (widget);
1769 GtkRangePrivate *priv = range->priv;
1771 stop_scrolling (range);
1773 gdk_window_hide (priv->event_window);
1775 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1779 _gtk_range_update_context_for_stepper (GtkRange *range,
1780 GtkStyleContext *context,
1783 GtkRangePrivate *priv = range->priv;
1784 GtkJunctionSides sides = 0;
1785 gboolean vertical, is_rtl;
1787 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1788 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1790 /* Take junction sides from what's been
1791 * previously set to the widget itself
1793 sides = gtk_style_context_get_junction_sides (context);
1796 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1798 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1804 sides |= GTK_JUNCTION_BOTTOM;
1806 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1809 if (priv->has_stepper_a)
1812 sides |= GTK_JUNCTION_TOP;
1814 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1818 sides |= GTK_JUNCTION_BOTTOM;
1820 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1823 if (priv->has_stepper_d)
1826 sides |= GTK_JUNCTION_BOTTOM;
1828 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1832 sides |= GTK_JUNCTION_TOP;
1834 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1838 sides |= GTK_JUNCTION_TOP;
1840 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1844 gtk_style_context_set_junction_sides (context, sides);
1848 draw_stepper (GtkRange *range,
1851 GtkArrowType arrow_type,
1853 gboolean prelighted)
1855 GtkRangePrivate *priv = range->priv;
1856 GtkAllocation allocation;
1857 GtkStateFlags state = 0;
1858 GtkStyleContext *context;
1859 GtkWidget *widget = GTK_WIDGET (range);
1860 gfloat arrow_scaling;
1864 gdouble arrow_size, angle;
1865 gboolean arrow_sensitive;
1870 rect = &priv->stepper_a;
1873 rect = &priv->stepper_b;
1876 rect = &priv->stepper_c;
1879 rect = &priv->stepper_d;
1882 g_assert_not_reached ();
1885 arrow_sensitive = TRUE;
1887 gtk_widget_get_allocation (widget, &allocation);
1889 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1890 arrow_type == GTK_ARROW_RIGHT)) ||
1891 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1892 arrow_type == GTK_ARROW_LEFT)))
1894 arrow_sensitive = priv->upper_sensitive;
1898 arrow_sensitive = priv->lower_sensitive;
1901 if (!gtk_widget_is_sensitive (GTK_WIDGET (range)) || !arrow_sensitive)
1902 state = GTK_STATE_FLAG_INSENSITIVE;
1906 state |= GTK_STATE_FLAG_ACTIVE;
1908 state |= GTK_STATE_FLAG_PRELIGHT;
1911 context = gtk_widget_get_style_context (widget);
1913 gtk_style_context_save (context);
1915 /* don't set juction sides on scrollbar steppers */
1916 if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_SCROLLBAR))
1917 gtk_style_context_set_junction_sides (context, GTK_JUNCTION_NONE);
1919 _gtk_range_update_context_for_stepper (range, context, stepper);
1921 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1922 gtk_style_context_set_state (context, state);
1924 gtk_render_background (context, cr,
1926 rect->width, rect->height);
1927 gtk_render_frame (context, cr,
1929 rect->width, rect->height);
1931 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1933 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1934 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1935 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1937 if (clicked && arrow_sensitive)
1939 gint arrow_displacement_x;
1940 gint arrow_displacement_y;
1942 gtk_range_get_props (GTK_RANGE (widget),
1943 NULL, NULL, NULL, NULL, NULL, NULL,
1944 &arrow_displacement_x, &arrow_displacement_y);
1946 arrow_x += arrow_displacement_x;
1947 arrow_y += arrow_displacement_y;
1952 case GTK_ARROW_RIGHT:
1955 case GTK_ARROW_DOWN:
1958 case GTK_ARROW_LEFT:
1959 angle = 3 * (G_PI / 2);
1967 gtk_render_arrow (context, cr,
1972 gtk_style_context_restore (context);
1976 gtk_range_draw (GtkWidget *widget,
1979 GtkRange *range = GTK_RANGE (widget);
1980 GtkRangePrivate *priv = range->priv;
1982 GtkStateFlags state = 0;
1983 gint focus_line_width = 0;
1984 gint focus_padding = 0;
1985 gboolean touchscreen;
1986 gboolean draw_trough = TRUE;
1987 GtkStyleContext *context;
1989 context = gtk_widget_get_style_context (widget);
1990 g_object_get (gtk_widget_get_settings (widget),
1991 "gtk-touchscreen-mode", &touchscreen,
1994 if (GTK_IS_SCALE (widget) &&
1995 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
1996 draw_trough = FALSE;
1998 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
1999 gtk_widget_style_get (GTK_WIDGET (range),
2000 "focus-line-width", &focus_line_width,
2001 "focus-padding", &focus_padding,
2004 /* we're now exposing, so there's no need to force early repaints */
2005 if (priv->repaint_id)
2006 g_source_remove (priv->repaint_id);
2007 priv->repaint_id = 0;
2009 gtk_range_calc_marks (range);
2010 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2012 sensitive = gtk_widget_is_sensitive (widget);
2014 /* Just to be confusing, we draw the trough for the whole
2015 * range rectangle, not the trough rectangle (the trough
2016 * rectangle is just for hit detection)
2019 gdk_cairo_rectangle (cr, &priv->range_rect);
2023 gint x = (priv->range_rect.x +
2024 focus_line_width + focus_padding);
2025 gint y = (priv->range_rect.y +
2026 focus_line_width + focus_padding);
2027 gint width = (priv->range_rect.width -
2028 2 * (focus_line_width + focus_padding));
2029 gint height = (priv->range_rect.height -
2030 2 * (focus_line_width + focus_padding));
2031 gboolean trough_under_steppers;
2033 gint stepper_spacing;
2035 gtk_widget_style_get (GTK_WIDGET (range),
2036 "trough-under-steppers", &trough_under_steppers,
2037 "stepper-size", &stepper_size,
2038 "stepper-spacing", &stepper_spacing,
2041 gtk_style_context_save (context);
2044 gtk_style_context_set_state (context, GTK_STATE_FLAG_INSENSITIVE);
2046 if (!trough_under_steppers)
2051 if (priv->has_stepper_a)
2052 offset += stepper_size;
2054 if (priv->has_stepper_b)
2055 offset += stepper_size;
2059 if (priv->has_stepper_c)
2060 shorter += stepper_size;
2062 if (priv->has_stepper_d)
2063 shorter += stepper_size;
2065 if (priv->has_stepper_a || priv->has_stepper_b)
2067 offset += stepper_spacing;
2068 shorter += stepper_spacing;
2071 if (priv->has_stepper_c || priv->has_stepper_d)
2073 shorter += stepper_spacing;
2076 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2088 gtk_style_context_save (context);
2089 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2093 gint trough_change_pos_x = width;
2094 gint trough_change_pos_y = height;
2096 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2097 trough_change_pos_x = (priv->slider.x +
2098 priv->slider.width / 2 -
2101 trough_change_pos_y = (priv->slider.y +
2102 priv->slider.height / 2 -
2105 /* FIXME: was trough-upper and trough-lower really used,
2106 * in that case, it should still be exposed somehow.
2108 gtk_render_background (context, cr, x, y,
2109 trough_change_pos_x,
2110 trough_change_pos_y);
2112 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2113 trough_change_pos_y = 0;
2115 trough_change_pos_x = 0;
2117 gtk_render_background (context, cr,
2118 x + trough_change_pos_x, y + trough_change_pos_y,
2119 width - trough_change_pos_x,
2120 height - trough_change_pos_y);
2122 gtk_render_frame (context, cr,
2123 x, y, width, height);
2127 gtk_render_background (context, cr,
2128 x, y, width, height);
2129 gtk_render_frame (context, cr,
2130 x, y, width, height);
2133 gtk_style_context_restore (context);
2135 if (priv->show_fill_level &&
2136 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2137 gtk_adjustment_get_lower (priv->adjustment) != 0)
2139 gdouble fill_level = priv->fill_level;
2142 gint fill_width = width;
2143 gint fill_height = height;
2145 gtk_style_context_save (context);
2146 gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
2148 fill_level = CLAMP (fill_level, gtk_adjustment_get_lower (priv->adjustment),
2149 gtk_adjustment_get_upper (priv->adjustment) -
2150 gtk_adjustment_get_page_size (priv->adjustment));
2152 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2154 fill_x = priv->trough.x;
2155 fill_width = (priv->slider.width +
2156 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2157 (gtk_adjustment_get_upper (priv->adjustment) -
2158 gtk_adjustment_get_lower (priv->adjustment) -
2159 gtk_adjustment_get_page_size (priv->adjustment)) *
2160 (priv->trough.width -
2161 priv->slider.width));
2163 if (should_invert (range))
2164 fill_x += priv->trough.width - fill_width;
2168 fill_y = priv->trough.y;
2169 fill_height = (priv->slider.height +
2170 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2171 (gtk_adjustment_get_upper (priv->adjustment) -
2172 gtk_adjustment_get_lower (priv->adjustment) -
2173 gtk_adjustment_get_page_size (priv->adjustment)) *
2174 (priv->trough.height -
2175 priv->slider.height));
2177 if (should_invert (range))
2178 fill_y += priv->trough.height - fill_height;
2182 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2183 fill_detail = "trough-fill-level-full";
2185 fill_detail = "trough-fill-level";
2188 gtk_render_activity (context, cr,
2190 fill_width, fill_height);
2192 gtk_style_context_restore (context);
2195 gtk_style_context_restore (context);
2197 if (sensitive && gtk_widget_has_focus (widget))
2199 gtk_style_context_save (context);
2200 gtk_style_context_set_state (context,
2201 gtk_widget_get_state_flags (widget));
2203 gtk_render_focus (context, cr,
2206 priv->range_rect.width,
2207 priv->range_rect.height);
2209 gtk_style_context_restore (context);
2216 state = GTK_STATE_FLAG_INSENSITIVE;
2217 else if (!touchscreen && priv->mouse_location == MOUSE_SLIDER)
2218 state = GTK_STATE_FLAG_PRELIGHT;
2220 if (priv->grab_location == MOUSE_SLIDER)
2221 state |= GTK_STATE_FLAG_ACTIVE;
2224 gdk_cairo_rectangle (cr, &priv->slider);
2229 gtk_style_context_save (context);
2230 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2231 gtk_style_context_set_state (context, state);
2233 gtk_render_slider (context, cr,
2237 priv->slider.height,
2240 gtk_style_context_restore (context);
2245 if (priv->has_stepper_a)
2246 draw_stepper (range, STEPPER_A, cr,
2247 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2248 priv->grab_location == MOUSE_STEPPER_A,
2249 !touchscreen && priv->mouse_location == MOUSE_STEPPER_A);
2251 if (priv->has_stepper_b)
2252 draw_stepper (range, STEPPER_B, cr,
2253 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2254 priv->grab_location == MOUSE_STEPPER_B,
2255 !touchscreen && priv->mouse_location == MOUSE_STEPPER_B);
2257 if (priv->has_stepper_c)
2258 draw_stepper (range, STEPPER_C, cr,
2259 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2260 priv->grab_location == MOUSE_STEPPER_C,
2261 !touchscreen && priv->mouse_location == MOUSE_STEPPER_C);
2263 if (priv->has_stepper_d)
2264 draw_stepper (range, STEPPER_D, cr,
2265 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2266 priv->grab_location == MOUSE_STEPPER_D,
2267 !touchscreen && priv->mouse_location == MOUSE_STEPPER_D);
2273 range_grab_add (GtkRange *range,
2275 MouseLocation location,
2278 GtkRangePrivate *priv = range->priv;
2280 if (device == priv->grab_device)
2283 if (priv->grab_device != NULL)
2285 g_warning ("GtkRange already had a grab device, releasing device grab");
2286 gtk_device_grab_remove (GTK_WIDGET (range), priv->grab_device);
2289 /* we don't actually gdk_grab, since a button is down */
2290 gtk_device_grab_add (GTK_WIDGET (range), device, TRUE);
2292 priv->grab_location = location;
2293 priv->grab_button = button;
2294 priv->grab_device = device;
2296 if (gtk_range_update_mouse_location (range))
2297 gtk_widget_queue_draw (GTK_WIDGET (range));
2301 range_grab_remove (GtkRange *range)
2303 GtkRangePrivate *priv = range->priv;
2304 MouseLocation location;
2306 if (priv->grab_device)
2308 gtk_device_grab_remove (GTK_WIDGET (range),
2310 priv->grab_device = NULL;
2313 location = priv->grab_location;
2314 priv->grab_location = MOUSE_OUTSIDE;
2315 priv->grab_button = 0;
2317 if (gtk_range_update_mouse_location (range) ||
2318 location != MOUSE_OUTSIDE)
2319 gtk_widget_queue_draw (GTK_WIDGET (range));
2322 static GtkScrollType
2323 range_get_scroll_for_grab (GtkRange *range)
2325 GtkRangePrivate *priv = range->priv;
2328 invert = should_invert (range);
2329 switch (priv->grab_location)
2331 /* Backward stepper */
2332 case MOUSE_STEPPER_A:
2333 case MOUSE_STEPPER_C:
2334 switch (priv->grab_button)
2337 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2340 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2343 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2348 /* Forward stepper */
2349 case MOUSE_STEPPER_B:
2350 case MOUSE_STEPPER_D:
2351 switch (priv->grab_button)
2354 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2357 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2360 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2368 if (priv->trough_click_forward)
2369 return GTK_SCROLL_PAGE_FORWARD;
2371 return GTK_SCROLL_PAGE_BACKWARD;
2381 return GTK_SCROLL_NONE;
2385 coord_to_value (GtkRange *range,
2388 GtkRangePrivate *priv = range->priv;
2395 gint trough_under_steppers;
2397 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2399 trough_length = priv->trough.height;
2400 trough_start = priv->trough.y;
2401 slider_length = priv->slider.height;
2405 trough_length = priv->trough.width;
2406 trough_start = priv->trough.x;
2407 slider_length = priv->slider.width;
2410 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2411 &trough_under_steppers, NULL, NULL);
2413 if (! trough_under_steppers)
2415 trough_start += trough_border;
2416 trough_length -= 2 * trough_border;
2419 if (trough_length == slider_length)
2422 frac = (MAX (0, coord - trough_start) /
2423 (gdouble) (trough_length - slider_length));
2425 if (should_invert (range))
2428 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2429 gtk_adjustment_get_lower (priv->adjustment) -
2430 gtk_adjustment_get_page_size (priv->adjustment));
2436 gtk_range_key_press (GtkWidget *widget,
2440 GtkRange *range = GTK_RANGE (widget);
2441 GtkRangePrivate *priv = range->priv;
2443 device = gdk_event_get_device ((GdkEvent *) event);
2444 device = gdk_device_get_associated_device (device);
2446 if (device == priv->grab_device &&
2447 event->keyval == GDK_KEY_Escape &&
2448 priv->grab_location != MOUSE_OUTSIDE)
2450 stop_scrolling (range);
2452 update_slider_position (range,
2453 priv->slide_initial_coordinate,
2454 priv->slide_initial_coordinate);
2459 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2463 gtk_range_button_press (GtkWidget *widget,
2464 GdkEventButton *event)
2466 GtkRange *range = GTK_RANGE (widget);
2467 GtkRangePrivate *priv = range->priv;
2470 if (!gtk_widget_has_focus (widget))
2471 gtk_widget_grab_focus (widget);
2473 /* ignore presses when we're already doing something else. */
2474 if (priv->grab_location != MOUSE_OUTSIDE)
2477 device = gdk_event_get_device ((GdkEvent *) event);
2478 priv->mouse_x = event->x;
2479 priv->mouse_y = event->y;
2481 if (gtk_range_update_mouse_location (range))
2482 gtk_widget_queue_draw (widget);
2484 if (priv->mouse_location == MOUSE_TROUGH &&
2487 /* button 1 steps by page increment, as with button 2 on a stepper
2489 GtkScrollType scroll;
2490 gdouble click_value;
2492 click_value = coord_to_value (range,
2493 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2494 event->y : event->x);
2496 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2497 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2499 scroll = range_get_scroll_for_grab (range);
2501 gtk_range_add_step_timer (range, scroll);
2505 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2506 priv->mouse_location == MOUSE_STEPPER_B ||
2507 priv->mouse_location == MOUSE_STEPPER_C ||
2508 priv->mouse_location == MOUSE_STEPPER_D) &&
2509 (event->button == 1 || event->button == 2 || event->button == 3))
2511 GtkAllocation allocation;
2512 GdkRectangle *stepper_area;
2513 GtkScrollType scroll;
2515 range_grab_add (range, device, priv->mouse_location, event->button);
2517 gtk_widget_get_allocation (widget, &allocation);
2518 stepper_area = get_area (range, priv->mouse_location);
2520 gtk_widget_queue_draw_area (widget,
2521 allocation.x + stepper_area->x,
2522 allocation.y + stepper_area->y,
2523 stepper_area->width,
2524 stepper_area->height);
2526 scroll = range_get_scroll_for_grab (range);
2527 if (scroll != GTK_SCROLL_NONE)
2528 gtk_range_add_step_timer (range, scroll);
2532 else if ((priv->mouse_location == MOUSE_TROUGH &&
2533 event->button == 2) ||
2534 priv->mouse_location == MOUSE_SLIDER)
2536 gboolean need_value_update = FALSE;
2538 /* Any button can be used to drag the slider, but you can start
2539 * dragging the slider with a trough click using button 2;
2540 * On button 2 press, we warp the slider to mouse position,
2541 * then begin the slider drag.
2543 if (event->button == 2)
2545 gdouble slider_low_value, slider_high_value, new_value;
2548 coord_to_value (range,
2549 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2550 event->y : event->x);
2552 coord_to_value (range,
2553 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2554 event->y - priv->slider.height :
2555 event->x - priv->slider.width);
2557 /* compute new value for warped slider */
2558 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2560 /* recalc slider, so we can set slide_initial_slider_position
2563 priv->need_recalc = TRUE;
2564 gtk_range_calc_layout (range, new_value);
2566 /* defer adjustment updates to update_slider_position() in order
2567 * to keep pixel quantisation
2569 need_value_update = TRUE;
2572 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2574 priv->slide_initial_slider_position = priv->slider.y;
2575 priv->slide_initial_coordinate = event->y;
2579 priv->slide_initial_slider_position = priv->slider.x;
2580 priv->slide_initial_coordinate = event->x;
2583 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2585 gtk_widget_queue_draw (widget);
2587 if (need_value_update)
2588 update_slider_position (range, event->x, event->y);
2596 /* During a slide, move the slider as required given new mouse position */
2598 update_slider_position (GtkRange *range,
2602 GtkRangePrivate *priv = range->priv;
2612 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2613 delta = mouse_y - priv->slide_initial_coordinate;
2615 delta = mouse_x - priv->slide_initial_coordinate;
2617 c = priv->slide_initial_slider_position + delta;
2619 new_value = coord_to_value (range, c);
2620 next_value = coord_to_value (range, c + 1);
2621 mark_delta = fabs (next_value - new_value);
2623 for (i = 0; i < priv->n_marks; i++)
2625 mark_value = priv->marks[i];
2627 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2629 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2631 new_value = mark_value;
2637 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2642 stop_scrolling (GtkRange *range)
2644 range_grab_remove (range);
2645 gtk_range_remove_step_timer (range);
2649 gtk_range_grab_broken (GtkWidget *widget,
2650 GdkEventGrabBroken *event)
2652 GtkRange *range = GTK_RANGE (widget);
2653 GtkRangePrivate *priv = range->priv;
2656 device = gdk_event_get_device ((GdkEvent *) event);
2658 if (device == priv->grab_device &&
2659 priv->grab_location != MOUSE_OUTSIDE)
2661 if (priv->grab_location == MOUSE_SLIDER)
2662 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2664 stop_scrolling (range);
2673 gtk_range_button_release (GtkWidget *widget,
2674 GdkEventButton *event)
2676 GtkRange *range = GTK_RANGE (widget);
2677 GtkRangePrivate *priv = range->priv;
2680 if (event->window == priv->event_window)
2682 priv->mouse_x = event->x;
2683 priv->mouse_y = event->y;
2687 gdk_window_get_device_position (priv->event_window,
2694 device = gdk_event_get_device ((GdkEvent *) event);
2696 if (priv->grab_device == device &&
2697 priv->grab_button == event->button)
2699 if (priv->grab_location == MOUSE_SLIDER)
2700 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2702 stop_scrolling (range);
2711 * _gtk_range_get_wheel_delta:
2712 * @range: a #GtkRange
2713 * @direction: A #GdkScrollDirection
2715 * Returns a good step value for the mouse wheel.
2717 * Return value: A good step value for the mouse wheel.
2722 _gtk_range_get_wheel_delta (GtkRange *range,
2723 GdkScrollDirection direction)
2725 GtkRangePrivate *priv = range->priv;
2726 GtkAdjustment *adjustment = priv->adjustment;
2729 if (GTK_IS_SCROLLBAR (range))
2730 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2732 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2734 if (direction == GDK_SCROLL_UP ||
2735 direction == GDK_SCROLL_LEFT)
2745 gtk_range_scroll_event (GtkWidget *widget,
2746 GdkEventScroll *event)
2748 GtkRange *range = GTK_RANGE (widget);
2749 GtkRangePrivate *priv = range->priv;
2751 if (gtk_widget_get_realized (widget))
2756 delta = _gtk_range_get_wheel_delta (range, event->direction);
2758 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2759 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2767 gtk_range_motion_notify (GtkWidget *widget,
2768 GdkEventMotion *event)
2770 GtkRange *range = GTK_RANGE (widget);
2771 GtkRangePrivate *priv = range->priv;
2773 gdk_event_request_motions (event);
2775 priv->mouse_x = event->x;
2776 priv->mouse_y = event->y;
2778 if (gtk_range_update_mouse_location (range))
2779 gtk_widget_queue_draw (widget);
2781 if (priv->grab_location == MOUSE_SLIDER)
2782 update_slider_position (range, event->x, event->y);
2784 /* We handled the event if the mouse was in the range_rect */
2785 return priv->mouse_location != MOUSE_OUTSIDE;
2789 gtk_range_enter_notify (GtkWidget *widget,
2790 GdkEventCrossing *event)
2792 GtkRange *range = GTK_RANGE (widget);
2793 GtkRangePrivate *priv = range->priv;
2795 priv->mouse_x = event->x;
2796 priv->mouse_y = event->y;
2798 if (gtk_range_update_mouse_location (range))
2799 gtk_widget_queue_draw (widget);
2805 gtk_range_leave_notify (GtkWidget *widget,
2806 GdkEventCrossing *event)
2808 GtkRange *range = GTK_RANGE (widget);
2809 GtkRangePrivate *priv = range->priv;
2814 if (gtk_range_update_mouse_location (range))
2815 gtk_widget_queue_draw (widget);
2821 gtk_range_grab_notify (GtkWidget *widget,
2822 gboolean was_grabbed)
2824 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2826 if (priv->grab_device &&
2827 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2828 stop_scrolling (GTK_RANGE (widget));
2832 gtk_range_state_flags_changed (GtkWidget *widget,
2833 GtkStateFlags previous_state)
2835 if (!gtk_widget_is_sensitive (widget))
2836 stop_scrolling (GTK_RANGE (widget));
2839 #define check_rectangle(rectangle1, rectangle2) \
2841 if (rectangle1.x != rectangle2.x) return TRUE; \
2842 if (rectangle1.y != rectangle2.y) return TRUE; \
2843 if (rectangle1.width != rectangle2.width) return TRUE; \
2844 if (rectangle1.height != rectangle2.height) return TRUE; \
2848 layout_changed (GtkRangePrivate *priv1,
2849 GtkRangePrivate *priv2)
2851 check_rectangle (priv1->slider, priv2->slider);
2852 check_rectangle (priv1->trough, priv2->trough);
2853 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2854 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2855 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2856 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2858 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2859 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2865 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2868 GtkRange *range = GTK_RANGE (data);
2869 GtkRangePrivate *priv = range->priv;
2870 GtkRangePrivate priv_aux = *priv;
2872 priv->recalc_marks = TRUE;
2873 priv->need_recalc = TRUE;
2874 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2876 /* now check whether the layout changed */
2877 if (layout_changed (priv, &priv_aux))
2878 gtk_widget_queue_draw (GTK_WIDGET (range));
2880 /* Note that we don't round off to priv->round_digits here.
2881 * that's because it's really broken to change a value
2882 * in response to a change signal on that value; round_digits
2883 * is therefore defined to be a filter on what the GtkRange
2884 * can input into the adjustment, not a filter that the GtkRange
2885 * will enforce on the adjustment.
2890 force_repaint (gpointer data)
2892 GtkRange *range = GTK_RANGE (data);
2893 GtkRangePrivate *priv = range->priv;
2894 GtkWidget *widget = GTK_WIDGET (range);
2896 priv->repaint_id = 0;
2897 if (gtk_widget_is_drawable (widget))
2898 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2904 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2907 GtkRange *range = GTK_RANGE (data);
2908 GtkRangePrivate *priv = range->priv;
2909 GtkRangePrivate priv_aux = *priv;
2911 priv->need_recalc = TRUE;
2912 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2914 /* now check whether the layout changed */
2915 if (layout_changed (priv, &priv_aux) ||
2916 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2918 gtk_widget_queue_draw (GTK_WIDGET (range));
2919 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2920 if (!priv->repaint_id)
2921 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2926 /* Note that we don't round off to priv->round_digits here.
2927 * that's because it's really broken to change a value
2928 * in response to a change signal on that value; round_digits
2929 * is therefore defined to be a filter on what the GtkRange
2930 * can input into the adjustment, not a filter that the GtkRange
2931 * will enforce on the adjustment.
2934 g_signal_emit (range, signals[VALUE_CHANGED], 0);
2938 gtk_range_style_updated (GtkWidget *widget)
2940 GtkRange *range = GTK_RANGE (widget);
2941 GtkRangePrivate *priv = range->priv;
2943 priv->need_recalc = TRUE;
2945 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
2949 apply_marks (GtkRange *range,
2953 GtkRangePrivate *priv = range->priv;
2957 for (i = 0; i < priv->n_marks; i++)
2959 mark = priv->marks[i];
2960 if ((oldval < mark && mark < *newval) ||
2961 (oldval > mark && mark > *newval))
2970 step_back (GtkRange *range)
2972 GtkRangePrivate *priv = range->priv;
2976 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
2977 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2978 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2979 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
2983 step_forward (GtkRange *range)
2985 GtkRangePrivate *priv = range->priv;
2989 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
2990 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2991 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2992 GTK_SCROLL_STEP_FORWARD, newval, &handled);
2997 page_back (GtkRange *range)
2999 GtkRangePrivate *priv = range->priv;
3003 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3004 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3005 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3006 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3010 page_forward (GtkRange *range)
3012 GtkRangePrivate *priv = range->priv;
3016 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3017 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3018 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3019 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3023 scroll_begin (GtkRange *range)
3025 GtkRangePrivate *priv = range->priv;
3028 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3029 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3034 scroll_end (GtkRange *range)
3036 GtkRangePrivate *priv = range->priv;
3040 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3041 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3046 gtk_range_scroll (GtkRange *range,
3047 GtkScrollType scroll)
3049 GtkRangePrivate *priv = range->priv;
3050 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3054 case GTK_SCROLL_STEP_LEFT:
3055 if (should_invert (range))
3056 step_forward (range);
3061 case GTK_SCROLL_STEP_UP:
3062 if (should_invert (range))
3063 step_forward (range);
3068 case GTK_SCROLL_STEP_RIGHT:
3069 if (should_invert (range))
3072 step_forward (range);
3075 case GTK_SCROLL_STEP_DOWN:
3076 if (should_invert (range))
3079 step_forward (range);
3082 case GTK_SCROLL_STEP_BACKWARD:
3086 case GTK_SCROLL_STEP_FORWARD:
3087 step_forward (range);
3090 case GTK_SCROLL_PAGE_LEFT:
3091 if (should_invert (range))
3092 page_forward (range);
3097 case GTK_SCROLL_PAGE_UP:
3098 if (should_invert (range))
3099 page_forward (range);
3104 case GTK_SCROLL_PAGE_RIGHT:
3105 if (should_invert (range))
3108 page_forward (range);
3111 case GTK_SCROLL_PAGE_DOWN:
3112 if (should_invert (range))
3115 page_forward (range);
3118 case GTK_SCROLL_PAGE_BACKWARD:
3122 case GTK_SCROLL_PAGE_FORWARD:
3123 page_forward (range);
3126 case GTK_SCROLL_START:
3127 scroll_begin (range);
3130 case GTK_SCROLL_END:
3134 case GTK_SCROLL_JUMP:
3135 /* Used by CList, range doesn't use it. */
3138 case GTK_SCROLL_NONE:
3142 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3146 gtk_range_move_slider (GtkRange *range,
3147 GtkScrollType scroll)
3149 GtkRangePrivate *priv = range->priv;
3150 gboolean cursor_only;
3152 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3153 "gtk-keynav-cursor-only", &cursor_only,
3158 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3160 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3162 if (scroll == GTK_SCROLL_STEP_UP ||
3163 scroll == GTK_SCROLL_STEP_DOWN)
3166 gtk_widget_child_focus (toplevel,
3167 scroll == GTK_SCROLL_STEP_UP ?
3168 GTK_DIR_UP : GTK_DIR_DOWN);
3174 if (scroll == GTK_SCROLL_STEP_LEFT ||
3175 scroll == GTK_SCROLL_STEP_RIGHT)
3178 gtk_widget_child_focus (toplevel,
3179 scroll == GTK_SCROLL_STEP_LEFT ?
3180 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3186 if (! gtk_range_scroll (range, scroll))
3187 gtk_widget_error_bell (GTK_WIDGET (range));
3191 gtk_range_get_props (GtkRange *range,
3195 gint *trough_border,
3196 gint *stepper_spacing,
3197 gboolean *trough_under_steppers,
3198 gint *arrow_displacement_x,
3199 gint *arrow_displacement_y)
3201 GtkWidget *widget = GTK_WIDGET (range);
3202 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3203 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3204 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3206 gtk_widget_style_get (widget,
3207 "slider-width", &tmp_slider_width,
3208 "trough-border", &tmp_trough_border,
3209 "stepper-size", &tmp_stepper_size,
3210 "stepper-spacing", &tmp_stepper_spacing,
3211 "trough-under-steppers", &tmp_trough_under_steppers,
3212 "arrow-displacement-x", &tmp_arrow_displacement_x,
3213 "arrow-displacement-y", &tmp_arrow_displacement_y,
3216 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
3218 gint focus_line_width;
3221 gtk_widget_style_get (GTK_WIDGET (range),
3222 "focus-line-width", &focus_line_width,
3223 "focus-padding", &focus_padding,
3226 tmp_focus_width = focus_line_width + focus_padding;
3230 tmp_focus_width = 0;
3234 *slider_width = tmp_slider_width;
3237 *focus_width = tmp_focus_width;
3240 *trough_border = tmp_trough_border;
3243 *stepper_size = tmp_stepper_size;
3245 if (stepper_spacing)
3246 *stepper_spacing = tmp_stepper_spacing;
3248 if (trough_under_steppers)
3249 *trough_under_steppers = tmp_trough_under_steppers;
3251 if (arrow_displacement_x)
3252 *arrow_displacement_x = tmp_arrow_displacement_x;
3254 if (arrow_displacement_y)
3255 *arrow_displacement_y = tmp_arrow_displacement_y;
3258 #define POINT_IN_RECT(xcoord, ycoord, rect) \
3259 ((xcoord) >= (rect).x && \
3260 (xcoord) < ((rect).x + (rect).width) && \
3261 (ycoord) >= (rect).y && \
3262 (ycoord) < ((rect).y + (rect).height))
3264 /* Update mouse location, return TRUE if it changes */
3266 gtk_range_update_mouse_location (GtkRange *range)
3268 GtkRangePrivate *priv = range->priv;
3269 GtkAllocation allocation;
3272 GtkWidget *widget = GTK_WIDGET (range);
3274 old = priv->mouse_location;
3279 gtk_widget_get_allocation (widget, &allocation);
3281 if (priv->grab_location != MOUSE_OUTSIDE)
3282 priv->mouse_location = priv->grab_location;
3283 else if (POINT_IN_RECT (x, y, priv->stepper_a))
3284 priv->mouse_location = MOUSE_STEPPER_A;
3285 else if (POINT_IN_RECT (x, y, priv->stepper_b))
3286 priv->mouse_location = MOUSE_STEPPER_B;
3287 else if (POINT_IN_RECT (x, y, priv->stepper_c))
3288 priv->mouse_location = MOUSE_STEPPER_C;
3289 else if (POINT_IN_RECT (x, y, priv->stepper_d))
3290 priv->mouse_location = MOUSE_STEPPER_D;
3291 else if (POINT_IN_RECT (x, y, priv->slider))
3292 priv->mouse_location = MOUSE_SLIDER;
3293 else if (POINT_IN_RECT (x, y, priv->trough))
3294 priv->mouse_location = MOUSE_TROUGH;
3295 else if (POINT_IN_RECT (x, y, allocation))
3296 priv->mouse_location = MOUSE_WIDGET;
3298 priv->mouse_location = MOUSE_OUTSIDE;
3300 return old != priv->mouse_location;
3303 /* Clamp rect, border inside widget->allocation, such that we prefer
3304 * to take space from border not rect in all directions, and prefer to
3305 * give space to border over rect in one direction.
3308 clamp_dimensions (GtkWidget *widget,
3311 gboolean border_expands_horizontally)
3313 GtkAllocation allocation;
3314 gint extra, shortage;
3316 g_return_if_fail (rect->x == 0);
3317 g_return_if_fail (rect->y == 0);
3318 g_return_if_fail (rect->width >= 0);
3319 g_return_if_fail (rect->height >= 0);
3321 gtk_widget_get_allocation (widget, &allocation);
3325 extra = allocation.width - border->left - border->right - rect->width;
3328 if (border_expands_horizontally)
3330 border->left += extra / 2;
3331 border->right += extra / 2 + extra % 2;
3335 rect->width += extra;
3339 /* See if we can fit rect, if not kill the border */
3340 shortage = rect->width - allocation.width;
3343 rect->width = allocation.width;
3344 /* lose the border */
3350 /* See if we can fit rect with borders */
3351 shortage = rect->width + border->left + border->right - allocation.width;
3354 /* Shrink borders */
3355 border->left -= shortage / 2;
3356 border->right -= shortage / 2 + shortage % 2;
3362 extra = allocation.height - border->top - border->bottom - rect->height;
3365 if (border_expands_horizontally)
3367 /* don't expand border vertically */
3368 rect->height += extra;
3372 border->top += extra / 2;
3373 border->bottom += extra / 2 + extra % 2;
3377 /* See if we can fit rect, if not kill the border */
3378 shortage = rect->height - allocation.height;
3381 rect->height = allocation.height;
3382 /* lose the border */
3388 /* See if we can fit rect with borders */
3389 shortage = rect->height + border->top + border->bottom - allocation.height;
3392 /* Shrink borders */
3393 border->top -= shortage / 2;
3394 border->bottom -= shortage / 2 + shortage % 2;
3400 gtk_range_calc_request (GtkRange *range,
3405 gint stepper_spacing,
3406 GdkRectangle *range_rect,
3409 gboolean *has_steppers_ab,
3410 gboolean *has_steppers_cd,
3411 gint *slider_length_p)
3413 GtkRangePrivate *priv = range->priv;
3424 if (GTK_RANGE_GET_CLASS (range)->get_range_border)
3425 GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
3430 if (priv->has_stepper_a)
3432 if (priv->has_stepper_b)
3434 if (priv->has_stepper_c)
3436 if (priv->has_stepper_d)
3439 n_steppers = n_steppers_ab + n_steppers_cd;
3441 slider_length = priv->min_slider_size;
3446 /* We never expand to fill available space in the small dimension
3447 * (i.e. vertical scrollbars are always a fixed width)
3449 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3451 range_rect->width = (focus_width + trough_border) * 2 + slider_width;
3452 range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3454 if (n_steppers_ab > 0)
3455 range_rect->height += stepper_spacing;
3457 if (n_steppers_cd > 0)
3458 range_rect->height += stepper_spacing;
3462 range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3463 range_rect->height = (focus_width + trough_border) * 2 + slider_width;
3465 if (n_steppers_ab > 0)
3466 range_rect->width += stepper_spacing;
3468 if (n_steppers_cd > 0)
3469 range_rect->width += stepper_spacing;
3473 *n_steppers_p = n_steppers;
3475 if (has_steppers_ab)
3476 *has_steppers_ab = (n_steppers_ab > 0);
3478 if (has_steppers_cd)
3479 *has_steppers_cd = (n_steppers_cd > 0);
3481 if (slider_length_p)
3482 *slider_length_p = slider_length;
3486 gtk_range_calc_layout (GtkRange *range,
3487 gdouble adjustment_value)
3489 GtkRangePrivate *priv = range->priv;
3490 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
3494 gboolean has_steppers_ab;
3495 gboolean has_steppers_cd;
3496 gboolean trough_under_steppers;
3497 GdkRectangle range_rect;
3500 if (!priv->need_recalc)
3503 /* If we have a too-small allocation, we prefer the steppers over
3504 * the trough/slider, probably the steppers are a more useful
3505 * feature in small spaces.
3507 * Also, we prefer to draw the range itself rather than the border
3508 * areas if there's a conflict, since the borders will be decoration
3509 * not controls. Though this depends on subclasses cooperating by
3510 * not drawing on priv->range_rect.
3513 widget = GTK_WIDGET (range);
3515 gtk_range_get_props (range,
3516 &slider_width, &stepper_size,
3517 &focus_width, &trough_border,
3518 &stepper_spacing, &trough_under_steppers,
3521 gtk_range_calc_request (range,
3522 slider_width, stepper_size,
3523 focus_width, trough_border, stepper_spacing,
3524 &range_rect, &border, &n_steppers,
3525 &has_steppers_ab, &has_steppers_cd, &slider_length);
3527 /* We never expand to fill available space in the small dimension
3528 * (i.e. vertical scrollbars are always a fixed width)
3530 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3532 clamp_dimensions (widget, &range_rect, &border, TRUE);
3536 clamp_dimensions (widget, &range_rect, &border, FALSE);
3539 range_rect.x = border.left;
3540 range_rect.y = border.top;
3542 priv->range_rect = range_rect;
3544 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3546 gint stepper_width, stepper_height;
3548 /* Steppers are the width of the range, and stepper_size in
3549 * height, or if we don't have enough height, divided equally
3550 * among available space.
3552 stepper_width = range_rect.width - focus_width * 2;
3554 if (trough_under_steppers)
3555 stepper_width -= trough_border * 2;
3557 if (stepper_width < 1)
3558 stepper_width = range_rect.width; /* screw the trough border */
3560 if (n_steppers == 0)
3561 stepper_height = 0; /* avoid divide by n_steppers */
3563 stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
3567 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3568 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3570 if (priv->has_stepper_a)
3572 priv->stepper_a.width = stepper_width;
3573 priv->stepper_a.height = stepper_height;
3577 priv->stepper_a.width = 0;
3578 priv->stepper_a.height = 0;
3583 priv->stepper_b.x = priv->stepper_a.x;
3584 priv->stepper_b.y = priv->stepper_a.y + priv->stepper_a.height;
3586 if (priv->has_stepper_b)
3588 priv->stepper_b.width = stepper_width;
3589 priv->stepper_b.height = stepper_height;
3593 priv->stepper_b.width = 0;
3594 priv->stepper_b.height = 0;
3599 if (priv->has_stepper_d)
3601 priv->stepper_d.width = stepper_width;
3602 priv->stepper_d.height = stepper_height;
3606 priv->stepper_d.width = 0;
3607 priv->stepper_d.height = 0;
3610 priv->stepper_d.x = priv->stepper_a.x;
3611 priv->stepper_d.y = range_rect.y + range_rect.height - priv->stepper_d.height - focus_width - trough_border * trough_under_steppers;
3615 if (priv->has_stepper_c)
3617 priv->stepper_c.width = stepper_width;
3618 priv->stepper_c.height = stepper_height;
3622 priv->stepper_c.width = 0;
3623 priv->stepper_c.height = 0;
3626 priv->stepper_c.x = priv->stepper_a.x;
3627 priv->stepper_c.y = priv->stepper_d.y - priv->stepper_c.height;
3629 /* Now the trough is the remaining space between steppers B and C,
3630 * if any, minus spacing
3632 priv->trough.x = range_rect.x;
3633 priv->trough.y = priv->stepper_b.y + priv->stepper_b.height + stepper_spacing * has_steppers_ab;
3634 priv->trough.width = range_rect.width;
3635 priv->trough.height = priv->stepper_c.y - priv->trough.y - stepper_spacing * has_steppers_cd;
3637 /* Slider fits into the trough, with stepper_spacing on either side,
3638 * and the size/position based on the adjustment or fixed, depending.
3640 priv->slider.x = priv->trough.x + focus_width + trough_border;
3641 priv->slider.width = priv->trough.width - (focus_width + trough_border) * 2;
3643 /* Compute slider position/length */
3645 gint y, bottom, top, height;
3647 top = priv->trough.y;
3648 bottom = priv->trough.y + priv->trough.height;
3650 if (! trough_under_steppers)
3652 top += trough_border;
3653 bottom -= trough_border;
3656 /* slider height is the fraction (page_size /
3657 * total_adjustment_range) times the trough height in pixels
3660 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3661 height = ((bottom - top) * (gtk_adjustment_get_page_size (priv->adjustment) /
3662 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3664 height = priv->min_slider_size;
3666 if (height < priv->min_slider_size ||
3667 priv->slider_size_fixed)
3668 height = priv->min_slider_size;
3670 height = MIN (height, priv->trough.height);
3674 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3675 y += (bottom - top - height) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3676 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3678 y = CLAMP (y, top, bottom);
3680 if (should_invert (range))
3681 y = bottom - (y - top + height);
3684 priv->slider.height = height;
3686 /* These are publically exported */
3687 priv->slider_start = priv->slider.y;
3688 priv->slider_end = priv->slider.y + priv->slider.height;
3693 gint stepper_width, stepper_height;
3695 /* Steppers are the height of the range, and stepper_size in
3696 * width, or if we don't have enough width, divided equally
3697 * among available space.
3699 stepper_height = range_rect.height + focus_width * 2;
3701 if (trough_under_steppers)
3702 stepper_height -= trough_border * 2;
3704 if (stepper_height < 1)
3705 stepper_height = range_rect.height; /* screw the trough border */
3707 if (n_steppers == 0)
3708 stepper_width = 0; /* avoid divide by n_steppers */
3710 stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
3714 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3715 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3717 if (priv->has_stepper_a)
3719 priv->stepper_a.width = stepper_width;
3720 priv->stepper_a.height = stepper_height;
3724 priv->stepper_a.width = 0;
3725 priv->stepper_a.height = 0;
3730 priv->stepper_b.x = priv->stepper_a.x + priv->stepper_a.width;
3731 priv->stepper_b.y = priv->stepper_a.y;
3733 if (priv->has_stepper_b)
3735 priv->stepper_b.width = stepper_width;
3736 priv->stepper_b.height = stepper_height;
3740 priv->stepper_b.width = 0;
3741 priv->stepper_b.height = 0;
3746 if (priv->has_stepper_d)
3748 priv->stepper_d.width = stepper_width;
3749 priv->stepper_d.height = stepper_height;
3753 priv->stepper_d.width = 0;
3754 priv->stepper_d.height = 0;
3757 priv->stepper_d.x = range_rect.x + range_rect.width - priv->stepper_d.width - focus_width - trough_border * trough_under_steppers;
3758 priv->stepper_d.y = priv->stepper_a.y;
3763 if (priv->has_stepper_c)
3765 priv->stepper_c.width = stepper_width;
3766 priv->stepper_c.height = stepper_height;
3770 priv->stepper_c.width = 0;
3771 priv->stepper_c.height = 0;
3774 priv->stepper_c.x = priv->stepper_d.x - priv->stepper_c.width;
3775 priv->stepper_c.y = priv->stepper_a.y;
3777 /* Now the trough is the remaining space between steppers B and C,
3780 priv->trough.x = priv->stepper_b.x + priv->stepper_b.width + stepper_spacing * has_steppers_ab;
3781 priv->trough.y = range_rect.y;
3783 priv->trough.width = priv->stepper_c.x - priv->trough.x - stepper_spacing * has_steppers_cd;
3784 priv->trough.height = range_rect.height;
3786 /* Slider fits into the trough, with stepper_spacing on either side,
3787 * and the size/position based on the adjustment or fixed, depending.
3789 priv->slider.y = priv->trough.y + focus_width + trough_border;
3790 priv->slider.height = priv->trough.height - (focus_width + trough_border) * 2;
3792 /* Compute slider position/length */
3794 gint x, left, right, width;
3796 left = priv->trough.x;
3797 right = priv->trough.x + priv->trough.width;
3799 if (! trough_under_steppers)
3801 left += trough_border;
3802 right -= trough_border;
3805 /* slider width is the fraction (page_size /
3806 * total_adjustment_range) times the trough width in pixels
3809 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3810 width = ((right - left) * (gtk_adjustment_get_page_size (priv->adjustment) /
3811 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3813 width = priv->min_slider_size;
3815 if (width < priv->min_slider_size ||
3816 priv->slider_size_fixed)
3817 width = priv->min_slider_size;
3819 width = MIN (width, priv->trough.width);
3823 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3824 x += (right - left - width) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3825 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3827 x = CLAMP (x, left, right);
3829 if (should_invert (range))
3830 x = right - (x - left + width);
3833 priv->slider.width = width;
3835 /* These are publically exported */
3836 priv->slider_start = priv->slider.x;
3837 priv->slider_end = priv->slider.x + priv->slider.width;
3841 gtk_range_update_mouse_location (range);
3843 switch (priv->upper_sensitivity)
3845 case GTK_SENSITIVITY_AUTO:
3846 priv->upper_sensitive =
3847 (gtk_adjustment_get_value (priv->adjustment) <
3848 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3851 case GTK_SENSITIVITY_ON:
3852 priv->upper_sensitive = TRUE;
3855 case GTK_SENSITIVITY_OFF:
3856 priv->upper_sensitive = FALSE;
3860 switch (priv->lower_sensitivity)
3862 case GTK_SENSITIVITY_AUTO:
3863 priv->lower_sensitive =
3864 (gtk_adjustment_get_value (priv->adjustment) > gtk_adjustment_get_lower (priv->adjustment));
3867 case GTK_SENSITIVITY_ON:
3868 priv->lower_sensitive = TRUE;
3871 case GTK_SENSITIVITY_OFF:
3872 priv->lower_sensitive = FALSE;
3877 static GdkRectangle*
3878 get_area (GtkRange *range,
3879 MouseLocation location)
3881 GtkRangePrivate *priv = range->priv;
3885 case MOUSE_STEPPER_A:
3886 return &priv->stepper_a;
3887 case MOUSE_STEPPER_B:
3888 return &priv->stepper_b;
3889 case MOUSE_STEPPER_C:
3890 return &priv->stepper_c;
3891 case MOUSE_STEPPER_D:
3892 return &priv->stepper_d;
3894 return &priv->trough;
3896 return &priv->slider;
3902 g_warning (G_STRLOC": bug");
3907 gtk_range_calc_marks (GtkRange *range)
3909 GtkRangePrivate *priv = range->priv;
3912 if (!priv->recalc_marks)
3915 priv->recalc_marks = FALSE;
3917 for (i = 0; i < priv->n_marks; i++)
3919 priv->need_recalc = TRUE;
3920 gtk_range_calc_layout (range, priv->marks[i]);
3921 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3922 priv->mark_pos[i] = priv->slider.x + priv->slider.width / 2;
3924 priv->mark_pos[i] = priv->slider.y + priv->slider.height / 2;
3927 priv->need_recalc = TRUE;
3931 gtk_range_real_change_value (GtkRange *range,
3932 GtkScrollType scroll,
3935 GtkRangePrivate *priv = range->priv;
3937 /* potentially adjust the bounds _before_ we clamp */
3938 g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
3940 if (priv->restrict_to_fill_level)
3941 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
3944 value = CLAMP (value, gtk_adjustment_get_lower (priv->adjustment),
3945 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3947 if (priv->round_digits >= 0)
3952 i = priv->round_digits;
3957 value = floor ((value * power) + 0.5) / power;
3960 if (gtk_adjustment_get_value (priv->adjustment) != value)
3962 priv->need_recalc = TRUE;
3964 gtk_widget_queue_draw (GTK_WIDGET (range));
3966 gtk_adjustment_set_value (priv->adjustment, value);
3971 struct _GtkRangeStepTimer
3978 second_timeout (gpointer data)
3980 GtkRange *range = GTK_RANGE (data);
3981 GtkRangePrivate *priv = range->priv;
3983 gtk_range_scroll (range, priv->timer->step);
3989 initial_timeout (gpointer data)
3991 GtkRange *range = GTK_RANGE (data);
3992 GtkRangePrivate *priv = range->priv;
3993 GtkSettings *settings;
3996 settings = gtk_widget_get_settings (GTK_WIDGET (data));
3997 g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
3999 priv->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
4007 gtk_range_add_step_timer (GtkRange *range,
4010 GtkRangePrivate *priv = range->priv;
4011 GtkSettings *settings;
4014 g_return_if_fail (priv->timer == NULL);
4015 g_return_if_fail (step != GTK_SCROLL_NONE);
4017 settings = gtk_widget_get_settings (GTK_WIDGET (range));
4018 g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
4020 priv->timer = g_new (GtkRangeStepTimer, 1);
4022 priv->timer->timeout_id = gdk_threads_add_timeout (timeout,
4025 priv->timer->step = step;
4027 gtk_range_scroll (range, priv->timer->step);
4031 gtk_range_remove_step_timer (GtkRange *range)
4033 GtkRangePrivate *priv = range->priv;
4037 if (priv->timer->timeout_id != 0)
4038 g_source_remove (priv->timer->timeout_id);
4040 g_free (priv->timer);
4047 _gtk_range_set_stop_values (GtkRange *range,
4051 GtkRangePrivate *priv = range->priv;
4054 g_free (priv->marks);
4055 priv->marks = g_new (gdouble, n_values);
4057 g_free (priv->mark_pos);
4058 priv->mark_pos = g_new (gint, n_values);
4060 priv->n_marks = n_values;
4062 for (i = 0; i < n_values; i++)
4063 priv->marks[i] = values[i];
4065 priv->recalc_marks = TRUE;
4069 _gtk_range_get_stop_positions (GtkRange *range,
4072 GtkRangePrivate *priv = range->priv;
4074 gtk_range_calc_marks (range);
4077 *values = g_memdup (priv->mark_pos, priv->n_marks * sizeof (gint));
4079 return priv->n_marks;
4083 * gtk_range_set_round_digits:
4084 * @range: a #GtkRange
4085 * @round_digits: the precision in digits, or -1
4087 * Sets the number of digits to round the value to when
4088 * it changes. See #GtkRange::change-value.
4093 gtk_range_set_round_digits (GtkRange *range,
4096 g_return_if_fail (GTK_IS_RANGE (range));
4097 g_return_if_fail (round_digits >= -1);
4099 range->priv->round_digits = round_digits;
4101 g_object_notify (G_OBJECT (range), "round-digits");
4105 * gtk_range_get_round_digits:
4106 * @range: a #GtkRange
4108 * Gets the number of digits to round the value to when
4109 * it changes. See #GtkRange::change-value.
4111 * Return value: the number of digits to round to
4116 gtk_range_get_round_digits (GtkRange *range)
4118 g_return_val_if_fail (GTK_IS_RANGE (range), -1);
4120 return range->priv->round_digits;
4124 _gtk_range_set_steppers (GtkRange *range,
4130 range->priv->has_stepper_a = has_a;
4131 range->priv->has_stepper_b = has_b;
4132 range->priv->has_stepper_c = has_c;
4133 range->priv->has_stepper_d = has_d;