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 "gtkorientable.h"
38 #include "gtkscrollbar.h"
39 #include "gtkwindow.h"
40 #include "gtkprivate.h"
42 #include "gtktypebuiltins.h"
46 * @Short_description: Base class for widgets which visualize an adjustment
49 * #GtkRange is the common base class for widgets which visualize an
50 * adjustment, e.g #GtkScale or #GtkScrollbar.
52 * Apart from signals for monitoring the parameters of the adjustment,
53 * #GtkRange provides properties and methods for influencing the sensitivity
54 * of the "steppers". It also provides properties and methods for setting a
55 * "fill level" on range widgets. See gtk_range_set_fill_level().
59 #define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
60 #define UPDATE_DELAY 300 /* Delay for queued update */
62 typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
72 MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
75 struct _GtkRangePrivate
77 MouseLocation mouse_location;
78 /* last mouse coords we got, or -1 if mouse is outside the range */
81 MouseLocation grab_location; /* "grabbed" mouse location, OUTSIDE for no grab */
82 guint grab_button : 8; /* 0 if none */
84 GtkRangeStepTimer *timer;
86 GtkAdjustment *adjustment;
87 GtkOrientation orientation;
88 GtkSensitivityType lower_sensitivity;
89 GtkSensitivityType upper_sensitivity;
91 GdkDevice *grab_device;
92 GdkRectangle range_rect; /* Area of entire stepper + trough assembly in widget->window coords */
93 /* These are in widget->window coordinates */
94 GdkRectangle stepper_a;
95 GdkRectangle stepper_b;
96 GdkRectangle stepper_c;
97 GdkRectangle stepper_d;
98 GdkRectangle trough; /* The trough rectangle is the area the thumb can slide in, not the entire range_rect */
100 GdkWindow *event_window;
102 GQuark slider_detail_quark;
103 GQuark stepper_detail_quark[4];
105 gboolean recalc_marks;
111 gint min_slider_size;
113 gint round_digits; /* Round off value to this many digits, -1 for no rounding */
114 gint slide_initial_slider_position;
115 gint slide_initial_coordinate;
116 gint slider_start; /* Slider range along the long dimension, in widget->window coords */
121 /* Steppers are: < > ---- < >
124 guint has_stepper_a : 1;
125 guint has_stepper_b : 1;
126 guint has_stepper_c : 1;
127 guint has_stepper_d : 1;
131 guint need_recalc : 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;
150 PROP_LOWER_STEPPER_SENSITIVITY,
151 PROP_UPPER_STEPPER_SENSITIVITY,
152 PROP_SHOW_FILL_LEVEL,
153 PROP_RESTRICT_TO_FILL_LEVEL,
173 static void gtk_range_set_property (GObject *object,
177 static void gtk_range_get_property (GObject *object,
181 static void gtk_range_destroy (GtkWidget *widget);
182 static void gtk_range_get_preferred_width
186 static void gtk_range_get_preferred_height
190 static void gtk_range_size_allocate (GtkWidget *widget,
191 GtkAllocation *allocation);
192 static void gtk_range_hierarchy_changed (GtkWidget *widget,
193 GtkWidget *previous_toplevel);
194 static void gtk_range_realize (GtkWidget *widget);
195 static void gtk_range_unrealize (GtkWidget *widget);
196 static void gtk_range_map (GtkWidget *widget);
197 static void gtk_range_unmap (GtkWidget *widget);
198 static gboolean gtk_range_draw (GtkWidget *widget,
200 static gboolean gtk_range_button_press (GtkWidget *widget,
201 GdkEventButton *event);
202 static gboolean gtk_range_button_release (GtkWidget *widget,
203 GdkEventButton *event);
204 static gboolean gtk_range_motion_notify (GtkWidget *widget,
205 GdkEventMotion *event);
206 static gboolean gtk_range_enter_notify (GtkWidget *widget,
207 GdkEventCrossing *event);
208 static gboolean gtk_range_leave_notify (GtkWidget *widget,
209 GdkEventCrossing *event);
210 static gboolean gtk_range_grab_broken (GtkWidget *widget,
211 GdkEventGrabBroken *event);
212 static void gtk_range_grab_notify (GtkWidget *widget,
213 gboolean was_grabbed);
214 static void gtk_range_state_flags_changed (GtkWidget *widget,
215 GtkStateFlags previous_state);
216 static gboolean gtk_range_scroll_event (GtkWidget *widget,
217 GdkEventScroll *event);
218 static void gtk_range_style_updated (GtkWidget *widget);
219 static void update_slider_position (GtkRange *range,
222 static void stop_scrolling (GtkRange *range);
223 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
224 GtkAllocation *allocation);
228 static void gtk_range_move_slider (GtkRange *range,
229 GtkScrollType scroll);
232 static gboolean gtk_range_scroll (GtkRange *range,
233 GtkScrollType scroll);
234 static gboolean gtk_range_update_mouse_location (GtkRange *range);
235 static void gtk_range_calc_layout (GtkRange *range,
236 gdouble adjustment_value);
237 static void gtk_range_calc_marks (GtkRange *range);
238 static void gtk_range_get_props (GtkRange *range,
243 gint *stepper_spacing,
244 gboolean *trough_under_steppers,
245 gint *arrow_displacement_x,
246 gint *arrow_displacement_y);
247 static void gtk_range_calc_request (GtkRange *range,
252 gint stepper_spacing,
253 GdkRectangle *range_rect,
256 gboolean *has_steppers_ab,
257 gboolean *has_steppers_cd,
258 gint *slider_length_p);
259 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
261 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
263 static void gtk_range_add_step_timer (GtkRange *range,
265 static void gtk_range_remove_step_timer (GtkRange *range);
266 static GdkRectangle* get_area (GtkRange *range,
267 MouseLocation location);
268 static gboolean gtk_range_real_change_value (GtkRange *range,
269 GtkScrollType scroll,
271 static gboolean gtk_range_key_press (GtkWidget *range,
275 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
276 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
279 static guint signals[LAST_SIGNAL];
283 gtk_range_class_init (GtkRangeClass *class)
285 GObjectClass *gobject_class;
286 GtkWidgetClass *widget_class;
288 gobject_class = G_OBJECT_CLASS (class);
289 widget_class = (GtkWidgetClass*) class;
291 gobject_class->set_property = gtk_range_set_property;
292 gobject_class->get_property = gtk_range_get_property;
294 widget_class->destroy = gtk_range_destroy;
295 widget_class->get_preferred_width = gtk_range_get_preferred_width;
296 widget_class->get_preferred_height = gtk_range_get_preferred_height;
297 widget_class->size_allocate = gtk_range_size_allocate;
298 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
299 widget_class->realize = gtk_range_realize;
300 widget_class->unrealize = gtk_range_unrealize;
301 widget_class->map = gtk_range_map;
302 widget_class->unmap = gtk_range_unmap;
303 widget_class->draw = gtk_range_draw;
304 widget_class->button_press_event = gtk_range_button_press;
305 widget_class->button_release_event = gtk_range_button_release;
306 widget_class->motion_notify_event = gtk_range_motion_notify;
307 widget_class->scroll_event = gtk_range_scroll_event;
308 widget_class->enter_notify_event = gtk_range_enter_notify;
309 widget_class->leave_notify_event = gtk_range_leave_notify;
310 widget_class->grab_broken_event = gtk_range_grab_broken;
311 widget_class->grab_notify = gtk_range_grab_notify;
312 widget_class->state_flags_changed = gtk_range_state_flags_changed;
313 widget_class->style_updated = gtk_range_style_updated;
314 widget_class->key_press_event = gtk_range_key_press;
316 class->move_slider = gtk_range_move_slider;
317 class->change_value = gtk_range_real_change_value;
319 class->slider_detail = "slider";
320 class->stepper_detail = "stepper";
323 * GtkRange::value-changed:
324 * @range: the #GtkRange that received the signal
326 * Emitted when the range value changes.
328 signals[VALUE_CHANGED] =
329 g_signal_new (I_("value-changed"),
330 G_TYPE_FROM_CLASS (gobject_class),
332 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
334 _gtk_marshal_VOID__VOID,
338 * GtkRange::adjust-bounds:
339 * @range: the #GtkRange that received the signal
340 * @value: the value before we clamp
342 * Emitted before clamping a value, to give the application a
343 * chance to adjust the bounds.
345 signals[ADJUST_BOUNDS] =
346 g_signal_new (I_("adjust-bounds"),
347 G_TYPE_FROM_CLASS (gobject_class),
349 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
351 _gtk_marshal_VOID__DOUBLE,
356 * GtkRange::move-slider:
357 * @range: the #GtkRange that received the signal
358 * @step: how to move the slider
360 * Virtual function that moves the slider. Used for keybindings.
362 signals[MOVE_SLIDER] =
363 g_signal_new (I_("move-slider"),
364 G_TYPE_FROM_CLASS (gobject_class),
365 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
366 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
368 _gtk_marshal_VOID__ENUM,
370 GTK_TYPE_SCROLL_TYPE);
373 * GtkRange::change-value:
374 * @range: the #GtkRange that received the signal
375 * @scroll: the type of scroll action that was performed
376 * @value: the new value resulting from the scroll action
377 * @returns: %TRUE to prevent other handlers from being invoked for the
378 * signal, %FALSE to propagate the signal further
380 * The #GtkRange::change-value signal is emitted when a scroll action is
381 * performed on a range. It allows an application to determine the
382 * type of scroll event that occurred and the resultant new value.
383 * The application can handle the event itself and return %TRUE to
384 * prevent further processing. Or, by returning %FALSE, it can pass
385 * the event to other handlers until the default GTK+ handler is
388 * The value parameter is unrounded. An application that overrides
389 * the GtkRange::change-value signal is responsible for clamping the
390 * value to the desired number of decimal digits; the default GTK+
391 * handler clamps the value based on #GtkRange:round-digits.
393 * It is not possible to use delayed update policies in an overridden
394 * #GtkRange::change-value handler.
398 signals[CHANGE_VALUE] =
399 g_signal_new (I_("change-value"),
400 G_TYPE_FROM_CLASS (gobject_class),
402 G_STRUCT_OFFSET (GtkRangeClass, change_value),
403 _gtk_boolean_handled_accumulator, NULL,
404 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
406 GTK_TYPE_SCROLL_TYPE,
409 g_object_class_override_property (gobject_class,
413 g_object_class_install_property (gobject_class,
415 g_param_spec_object ("adjustment",
417 P_("The GtkAdjustment that contains the current value of this range object"),
419 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
421 g_object_class_install_property (gobject_class,
423 g_param_spec_boolean ("inverted",
425 P_("Invert direction slider moves to increase range value"),
427 GTK_PARAM_READWRITE));
429 g_object_class_install_property (gobject_class,
430 PROP_LOWER_STEPPER_SENSITIVITY,
431 g_param_spec_enum ("lower-stepper-sensitivity",
432 P_("Lower stepper sensitivity"),
433 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
434 GTK_TYPE_SENSITIVITY_TYPE,
435 GTK_SENSITIVITY_AUTO,
436 GTK_PARAM_READWRITE));
438 g_object_class_install_property (gobject_class,
439 PROP_UPPER_STEPPER_SENSITIVITY,
440 g_param_spec_enum ("upper-stepper-sensitivity",
441 P_("Upper stepper sensitivity"),
442 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
443 GTK_TYPE_SENSITIVITY_TYPE,
444 GTK_SENSITIVITY_AUTO,
445 GTK_PARAM_READWRITE));
448 * GtkRange:show-fill-level:
450 * The show-fill-level property controls whether fill level indicator
451 * graphics are displayed on the trough. See
452 * gtk_range_set_show_fill_level().
456 g_object_class_install_property (gobject_class,
457 PROP_SHOW_FILL_LEVEL,
458 g_param_spec_boolean ("show-fill-level",
459 P_("Show Fill Level"),
460 P_("Whether to display a fill level indicator graphics on trough."),
462 GTK_PARAM_READWRITE));
465 * GtkRange:restrict-to-fill-level:
467 * The restrict-to-fill-level property controls whether slider
468 * movement is restricted to an upper boundary set by the
469 * fill level. See gtk_range_set_restrict_to_fill_level().
473 g_object_class_install_property (gobject_class,
474 PROP_RESTRICT_TO_FILL_LEVEL,
475 g_param_spec_boolean ("restrict-to-fill-level",
476 P_("Restrict to Fill Level"),
477 P_("Whether to restrict the upper boundary to the fill level."),
479 GTK_PARAM_READWRITE));
482 * GtkRange:fill-level:
484 * The fill level (e.g. prebuffering of a network stream).
485 * See gtk_range_set_fill_level().
489 g_object_class_install_property (gobject_class,
491 g_param_spec_double ("fill-level",
493 P_("The fill level."),
497 GTK_PARAM_READWRITE));
500 * GtkRange:round-digits:
502 * The number of digits to round the value to when
503 * it changes, or -1. See #GtkRange::change-value.
507 g_object_class_install_property (gobject_class,
509 g_param_spec_int ("round-digits",
511 P_("The number of digits to round the value to."),
515 GTK_PARAM_READWRITE));
517 gtk_widget_class_install_style_property (widget_class,
518 g_param_spec_int ("slider-width",
520 P_("Width of scrollbar or scale thumb"),
524 GTK_PARAM_READABLE));
525 gtk_widget_class_install_style_property (widget_class,
526 g_param_spec_int ("trough-border",
528 P_("Spacing between thumb/steppers and outer trough bevel"),
532 GTK_PARAM_READABLE));
533 gtk_widget_class_install_style_property (widget_class,
534 g_param_spec_int ("stepper-size",
536 P_("Length of step buttons at ends"),
540 GTK_PARAM_READABLE));
542 * GtkRange:stepper-spacing:
544 * The spacing between the stepper buttons and thumb. Note that
545 * setting this value to anything > 0 will automatically set the
546 * trough-under-steppers style property to %TRUE as well. Also,
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. Note that setting the
579 * #GtkRange:stepper-spacing style property to any value > 0 will
580 * automatically enable trough-under-steppers too.
584 gtk_widget_class_install_style_property (widget_class,
585 g_param_spec_boolean ("trough-under-steppers",
586 P_("Trough Under Steppers"),
587 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
589 GTK_PARAM_READABLE));
592 * GtkRange:arrow-scaling:
594 * The arrow size proportion relative to the scroll button size.
598 gtk_widget_class_install_style_property (widget_class,
599 g_param_spec_float ("arrow-scaling",
601 P_("Arrow scaling with regard to scroll button size"),
603 GTK_PARAM_READABLE));
605 g_type_class_add_private (class, sizeof (GtkRangePrivate));
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_widget_queue_resize (GTK_WIDGET (range));
630 case PROP_ADJUSTMENT:
631 gtk_range_set_adjustment (range, g_value_get_object (value));
634 gtk_range_set_inverted (range, g_value_get_boolean (value));
636 case PROP_LOWER_STEPPER_SENSITIVITY:
637 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
639 case PROP_UPPER_STEPPER_SENSITIVITY:
640 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
642 case PROP_SHOW_FILL_LEVEL:
643 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
645 case PROP_RESTRICT_TO_FILL_LEVEL:
646 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
648 case PROP_FILL_LEVEL:
649 gtk_range_set_fill_level (range, g_value_get_double (value));
651 case PROP_ROUND_DIGITS:
652 gtk_range_set_round_digits (range, g_value_get_int (value));
655 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
661 gtk_range_get_property (GObject *object,
666 GtkRange *range = GTK_RANGE (object);
667 GtkRangePrivate *priv = range->priv;
671 case PROP_ORIENTATION:
672 g_value_set_enum (value, priv->orientation);
674 case PROP_ADJUSTMENT:
675 g_value_set_object (value, priv->adjustment);
678 g_value_set_boolean (value, priv->inverted);
680 case PROP_LOWER_STEPPER_SENSITIVITY:
681 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
683 case PROP_UPPER_STEPPER_SENSITIVITY:
684 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
686 case PROP_SHOW_FILL_LEVEL:
687 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
689 case PROP_RESTRICT_TO_FILL_LEVEL:
690 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
692 case PROP_FILL_LEVEL:
693 g_value_set_double (value, gtk_range_get_fill_level (range));
695 case PROP_ROUND_DIGITS:
696 g_value_set_int (value, gtk_range_get_round_digits (range));
699 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
705 gtk_range_init (GtkRange *range)
707 GtkRangePrivate *priv;
709 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
714 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
716 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
717 priv->adjustment = NULL;
718 priv->inverted = FALSE;
719 priv->flippable = FALSE;
720 priv->min_slider_size = 1;
721 priv->has_stepper_a = FALSE;
722 priv->has_stepper_b = FALSE;
723 priv->has_stepper_c = FALSE;
724 priv->has_stepper_d = FALSE;
725 priv->need_recalc = TRUE;
726 priv->round_digits = -1;
727 priv->mouse_location = MOUSE_OUTSIDE;
730 priv->grab_location = MOUSE_OUTSIDE;
731 priv->grab_button = 0;
732 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
733 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
734 priv->lower_sensitive = TRUE;
735 priv->upper_sensitive = TRUE;
736 priv->show_fill_level = FALSE;
737 priv->restrict_to_fill_level = TRUE;
738 priv->fill_level = G_MAXDOUBLE;
743 * gtk_range_get_adjustment:
744 * @range: a #GtkRange
746 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
747 * See gtk_range_set_adjustment() for details.
748 * The return value does not have a reference added, so should not
751 * Return value: (transfer none): a #GtkAdjustment
754 gtk_range_get_adjustment (GtkRange *range)
756 GtkRangePrivate *priv;
758 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
762 if (!priv->adjustment)
763 gtk_range_set_adjustment (range, NULL);
765 return priv->adjustment;
769 * gtk_range_set_adjustment:
770 * @range: a #GtkRange
771 * @adjustment: a #GtkAdjustment
773 * Sets the adjustment to be used as the "model" object for this range
774 * widget. The adjustment indicates the current range value, the
775 * minimum and maximum range values, the step/page increments used
776 * for keybindings and scrolling, and the page size. The page size
777 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
778 * indicates the size of the visible area of the widget being scrolled.
779 * The page size affects the size of the scrollbar slider.
782 gtk_range_set_adjustment (GtkRange *range,
783 GtkAdjustment *adjustment)
785 GtkRangePrivate *priv;
787 g_return_if_fail (GTK_IS_RANGE (range));
792 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
794 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
796 if (priv->adjustment != adjustment)
798 if (priv->adjustment)
800 g_signal_handlers_disconnect_by_func (priv->adjustment,
801 gtk_range_adjustment_changed,
803 g_signal_handlers_disconnect_by_func (priv->adjustment,
804 gtk_range_adjustment_value_changed,
806 g_object_unref (priv->adjustment);
809 priv->adjustment = adjustment;
810 g_object_ref_sink (adjustment);
812 g_signal_connect (adjustment, "changed",
813 G_CALLBACK (gtk_range_adjustment_changed),
815 g_signal_connect (adjustment, "value-changed",
816 G_CALLBACK (gtk_range_adjustment_value_changed),
819 gtk_range_adjustment_changed (adjustment, range);
820 g_object_notify (G_OBJECT (range), "adjustment");
825 * gtk_range_set_inverted:
826 * @range: a #GtkRange
827 * @setting: %TRUE to invert the range
829 * Ranges normally move from lower to higher values as the
830 * slider moves from top to bottom or left to right. Inverted
831 * ranges have higher values at the top or on the right rather than
832 * on the bottom or left.
835 gtk_range_set_inverted (GtkRange *range,
838 GtkRangePrivate *priv;
840 g_return_if_fail (GTK_IS_RANGE (range));
844 setting = setting != FALSE;
846 if (setting != priv->inverted)
848 priv->inverted = setting;
849 g_object_notify (G_OBJECT (range), "inverted");
850 gtk_widget_queue_resize (GTK_WIDGET (range));
855 * gtk_range_get_inverted:
856 * @range: a #GtkRange
858 * Gets the value set by gtk_range_set_inverted().
860 * Return value: %TRUE if the range is inverted
863 gtk_range_get_inverted (GtkRange *range)
865 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
867 return range->priv->inverted;
871 * gtk_range_set_flippable:
872 * @range: a #GtkRange
873 * @flippable: %TRUE to make the range flippable
875 * If a range is flippable, it will switch its direction if it is
876 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
878 * See gtk_widget_get_direction().
883 gtk_range_set_flippable (GtkRange *range,
886 GtkRangePrivate *priv;
888 g_return_if_fail (GTK_IS_RANGE (range));
892 flippable = flippable ? TRUE : FALSE;
894 if (flippable != priv->flippable)
896 priv->flippable = flippable;
898 gtk_widget_queue_draw (GTK_WIDGET (range));
903 * gtk_range_get_flippable:
904 * @range: a #GtkRange
906 * Gets the value set by gtk_range_set_flippable().
908 * Return value: %TRUE if the range is flippable
913 gtk_range_get_flippable (GtkRange *range)
915 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
917 return range->priv->flippable;
921 * gtk_range_set_slider_size_fixed:
922 * @range: a #GtkRange
923 * @size_fixed: %TRUE to make the slider size constant
925 * Sets whether the range's slider has a fixed size, or a size that
926 * depends on it's adjustment's page size.
928 * This function is useful mainly for #GtkRange subclasses.
933 gtk_range_set_slider_size_fixed (GtkRange *range,
936 GtkRangePrivate *priv;
938 g_return_if_fail (GTK_IS_RANGE (range));
942 if (size_fixed != priv->slider_size_fixed)
944 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
946 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
948 priv->need_recalc = TRUE;
949 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
950 gtk_widget_queue_draw (GTK_WIDGET (range));
956 * gtk_range_get_slider_size_fixed:
957 * @range: a #GtkRange
959 * This function is useful mainly for #GtkRange subclasses.
961 * See gtk_range_set_slider_size_fixed().
963 * Return value: whether the range's slider has a fixed size.
968 gtk_range_get_slider_size_fixed (GtkRange *range)
970 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
972 return range->priv->slider_size_fixed;
976 * gtk_range_set_min_slider_size:
977 * @range: a #GtkRange
978 * @min_size: The slider's minimum size
980 * Sets the minimum size of the range's slider.
982 * This function is useful mainly for #GtkRange subclasses.
987 gtk_range_set_min_slider_size (GtkRange *range,
990 GtkRangePrivate *priv;
992 g_return_if_fail (GTK_IS_RANGE (range));
993 g_return_if_fail (min_size > 0);
997 if (min_size != priv->min_slider_size)
999 priv->min_slider_size = min_size;
1001 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1003 priv->need_recalc = TRUE;
1004 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1005 gtk_widget_queue_draw (GTK_WIDGET (range));
1011 * gtk_range_get_min_slider_size:
1012 * @range: a #GtkRange
1014 * This function is useful mainly for #GtkRange subclasses.
1016 * See gtk_range_set_min_slider_size().
1018 * Return value: The minimum size of the range's slider.
1023 gtk_range_get_min_slider_size (GtkRange *range)
1025 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1027 return range->priv->min_slider_size;
1031 * gtk_range_get_range_rect:
1032 * @range: a #GtkRange
1033 * @range_rect: return location for the range rectangle
1035 * This function returns the area that contains the range's trough
1036 * and its steppers, in widget->window coordinates.
1038 * This function is useful mainly for #GtkRange subclasses.
1043 gtk_range_get_range_rect (GtkRange *range,
1044 GdkRectangle *range_rect)
1046 GtkRangePrivate *priv;
1048 g_return_if_fail (GTK_IS_RANGE (range));
1049 g_return_if_fail (range_rect != NULL);
1053 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1055 *range_rect = priv->range_rect;
1059 * gtk_range_get_slider_range:
1060 * @range: a #GtkRange
1061 * @slider_start: (allow-none): return location for the slider's start, or %NULL
1062 * @slider_end: (allow-none): return location for the slider's end, or %NULL
1064 * This function returns sliders range along the long dimension,
1065 * in widget->window coordinates.
1067 * This function is useful mainly for #GtkRange subclasses.
1072 gtk_range_get_slider_range (GtkRange *range,
1076 GtkRangePrivate *priv;
1078 g_return_if_fail (GTK_IS_RANGE (range));
1082 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1085 *slider_start = priv->slider_start;
1088 *slider_end = priv->slider_end;
1092 * gtk_range_set_lower_stepper_sensitivity:
1093 * @range: a #GtkRange
1094 * @sensitivity: the lower stepper's sensitivity policy.
1096 * Sets the sensitivity policy for the stepper that points to the
1097 * 'lower' end of the GtkRange's adjustment.
1102 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1103 GtkSensitivityType sensitivity)
1105 GtkRangePrivate *priv;
1107 g_return_if_fail (GTK_IS_RANGE (range));
1111 if (priv->lower_sensitivity != sensitivity)
1113 priv->lower_sensitivity = sensitivity;
1115 priv->need_recalc = TRUE;
1116 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1117 gtk_widget_queue_draw (GTK_WIDGET (range));
1119 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1124 * gtk_range_get_lower_stepper_sensitivity:
1125 * @range: a #GtkRange
1127 * Gets the sensitivity policy for the stepper that points to the
1128 * 'lower' end of the GtkRange's adjustment.
1130 * Return value: The lower stepper's sensitivity policy.
1135 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1137 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1139 return range->priv->lower_sensitivity;
1143 * gtk_range_set_upper_stepper_sensitivity:
1144 * @range: a #GtkRange
1145 * @sensitivity: the upper stepper's sensitivity policy.
1147 * Sets the sensitivity policy for the stepper that points to the
1148 * 'upper' end of the GtkRange's adjustment.
1153 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1154 GtkSensitivityType sensitivity)
1156 GtkRangePrivate *priv;
1158 g_return_if_fail (GTK_IS_RANGE (range));
1162 if (priv->upper_sensitivity != sensitivity)
1164 priv->upper_sensitivity = sensitivity;
1166 priv->need_recalc = TRUE;
1167 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1168 gtk_widget_queue_draw (GTK_WIDGET (range));
1170 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1175 * gtk_range_get_upper_stepper_sensitivity:
1176 * @range: a #GtkRange
1178 * Gets the sensitivity policy for the stepper that points to the
1179 * 'upper' end of the GtkRange's adjustment.
1181 * Return value: The upper stepper's sensitivity policy.
1186 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1188 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1190 return range->priv->upper_sensitivity;
1194 * gtk_range_set_increments:
1195 * @range: a #GtkRange
1199 * Sets the step and page sizes for the range.
1200 * The step size is used when the user clicks the #GtkScrollbar
1201 * arrows or moves #GtkScale via arrow keys. The page size
1202 * is used for example when moving via Page Up or Page Down keys.
1205 gtk_range_set_increments (GtkRange *range,
1209 GtkAdjustment *adjustment;
1211 g_return_if_fail (GTK_IS_RANGE (range));
1213 adjustment = range->priv->adjustment;
1215 gtk_adjustment_configure (adjustment,
1216 gtk_adjustment_get_value (adjustment),
1217 gtk_adjustment_get_lower (adjustment),
1218 gtk_adjustment_get_upper (adjustment),
1221 gtk_adjustment_get_page_size (adjustment));
1225 * gtk_range_set_range:
1226 * @range: a #GtkRange
1227 * @min: minimum range value
1228 * @max: maximum range value
1230 * Sets the allowable values in the #GtkRange, and clamps the range
1231 * value to be between @min and @max. (If the range has a non-zero
1232 * page size, it is clamped between @min and @max - page-size.)
1235 gtk_range_set_range (GtkRange *range,
1239 GtkRangePrivate *priv;
1240 GtkAdjustment *adjustment;
1243 g_return_if_fail (GTK_IS_RANGE (range));
1244 g_return_if_fail (min <= max);
1247 adjustment = priv->adjustment;
1249 value = gtk_adjustment_get_value (adjustment);
1250 if (priv->restrict_to_fill_level)
1251 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1254 gtk_adjustment_configure (adjustment,
1258 gtk_adjustment_get_step_increment (adjustment),
1259 gtk_adjustment_get_page_increment (adjustment),
1260 gtk_adjustment_get_page_size (adjustment));
1264 * gtk_range_set_value:
1265 * @range: a #GtkRange
1266 * @value: new value of the range
1268 * Sets the current value of the range; if the value is outside the
1269 * minimum or maximum range values, it will be clamped to fit inside
1270 * them. The range emits the #GtkRange::value-changed signal if the
1274 gtk_range_set_value (GtkRange *range,
1277 GtkRangePrivate *priv;
1279 g_return_if_fail (GTK_IS_RANGE (range));
1283 if (priv->restrict_to_fill_level)
1284 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1287 gtk_adjustment_set_value (priv->adjustment, value);
1291 * gtk_range_get_value:
1292 * @range: a #GtkRange
1294 * Gets the current value of the range.
1296 * Return value: current value of the range.
1299 gtk_range_get_value (GtkRange *range)
1301 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1303 return gtk_adjustment_get_value (range->priv->adjustment);
1307 * gtk_range_set_show_fill_level:
1308 * @range: A #GtkRange
1309 * @show_fill_level: Whether a fill level indicator graphics is shown.
1311 * Sets whether a graphical fill level is show on the trough. See
1312 * gtk_range_set_fill_level() for a general description of the fill
1318 gtk_range_set_show_fill_level (GtkRange *range,
1319 gboolean show_fill_level)
1321 GtkRangePrivate *priv;
1323 g_return_if_fail (GTK_IS_RANGE (range));
1327 show_fill_level = show_fill_level ? TRUE : FALSE;
1329 if (show_fill_level != priv->show_fill_level)
1331 priv->show_fill_level = show_fill_level;
1332 g_object_notify (G_OBJECT (range), "show-fill-level");
1333 gtk_widget_queue_draw (GTK_WIDGET (range));
1338 * gtk_range_get_show_fill_level:
1339 * @range: A #GtkRange
1341 * Gets whether the range displays the fill level graphically.
1343 * Return value: %TRUE if @range shows the fill level.
1348 gtk_range_get_show_fill_level (GtkRange *range)
1350 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1352 return range->priv->show_fill_level;
1356 * gtk_range_set_restrict_to_fill_level:
1357 * @range: A #GtkRange
1358 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1360 * Sets whether the slider is restricted to the fill level. See
1361 * gtk_range_set_fill_level() for a general description of the fill
1367 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1368 gboolean restrict_to_fill_level)
1370 GtkRangePrivate *priv;
1372 g_return_if_fail (GTK_IS_RANGE (range));
1376 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1378 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1380 priv->restrict_to_fill_level = restrict_to_fill_level;
1381 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1383 gtk_range_set_value (range, gtk_range_get_value (range));
1388 * gtk_range_get_restrict_to_fill_level:
1389 * @range: A #GtkRange
1391 * Gets whether the range is restricted to the fill level.
1393 * Return value: %TRUE if @range is restricted to the fill level.
1398 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1400 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1402 return range->priv->restrict_to_fill_level;
1406 * gtk_range_set_fill_level:
1407 * @range: a #GtkRange
1408 * @fill_level: the new position of the fill level indicator
1410 * Set the new position of the fill level indicator.
1412 * The "fill level" is probably best described by its most prominent
1413 * use case, which is an indicator for the amount of pre-buffering in
1414 * a streaming media player. In that use case, the value of the range
1415 * would indicate the current play position, and the fill level would
1416 * be the position up to which the file/stream has been downloaded.
1418 * This amount of prebuffering can be displayed on the range's trough
1419 * and is themeable separately from the trough. To enable fill level
1420 * display, use gtk_range_set_show_fill_level(). The range defaults
1421 * to not showing the fill level.
1423 * Additionally, it's possible to restrict the range's slider position
1424 * to values which are smaller than the fill level. This is controller
1425 * by gtk_range_set_restrict_to_fill_level() and is by default
1431 gtk_range_set_fill_level (GtkRange *range,
1434 GtkRangePrivate *priv;
1436 g_return_if_fail (GTK_IS_RANGE (range));
1440 if (fill_level != priv->fill_level)
1442 priv->fill_level = fill_level;
1443 g_object_notify (G_OBJECT (range), "fill-level");
1445 if (priv->show_fill_level)
1446 gtk_widget_queue_draw (GTK_WIDGET (range));
1448 if (priv->restrict_to_fill_level)
1449 gtk_range_set_value (range, gtk_range_get_value (range));
1454 * gtk_range_get_fill_level:
1455 * @range: A #GtkRange
1457 * Gets the current position of the fill level indicator.
1459 * Return value: The current fill level
1464 gtk_range_get_fill_level (GtkRange *range)
1466 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1468 return range->priv->fill_level;
1472 should_invert (GtkRange *range)
1474 GtkRangePrivate *priv = range->priv;
1476 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1478 (priv->inverted && !priv->flippable) ||
1479 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1480 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1482 return priv->inverted;
1486 gtk_range_destroy (GtkWidget *widget)
1488 GtkRange *range = GTK_RANGE (widget);
1489 GtkRangePrivate *priv = range->priv;
1491 gtk_range_remove_step_timer (range);
1493 if (priv->repaint_id)
1494 g_source_remove (priv->repaint_id);
1495 priv->repaint_id = 0;
1497 if (priv->adjustment)
1499 g_signal_handlers_disconnect_by_func (priv->adjustment,
1500 gtk_range_adjustment_changed,
1502 g_signal_handlers_disconnect_by_func (priv->adjustment,
1503 gtk_range_adjustment_value_changed,
1505 g_object_unref (priv->adjustment);
1506 priv->adjustment = NULL;
1511 g_free (priv->marks);
1513 g_free (priv->mark_pos);
1514 priv->mark_pos = NULL;
1518 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1522 gtk_range_get_preferred_width (GtkWidget *widget,
1527 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1528 GdkRectangle range_rect;
1531 range = GTK_RANGE (widget);
1533 gtk_range_get_props (range,
1534 &slider_width, &stepper_size,
1535 &focus_width, &trough_border,
1536 &stepper_spacing, NULL,
1539 gtk_range_calc_request (range,
1540 slider_width, stepper_size,
1541 focus_width, trough_border, stepper_spacing,
1542 &range_rect, &border, NULL, NULL, NULL, NULL);
1544 *minimum = *natural = range_rect.width + border.left + border.right;
1548 gtk_range_get_preferred_height (GtkWidget *widget,
1553 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1554 GdkRectangle range_rect;
1557 range = GTK_RANGE (widget);
1559 gtk_range_get_props (range,
1560 &slider_width, &stepper_size,
1561 &focus_width, &trough_border,
1562 &stepper_spacing, NULL,
1565 gtk_range_calc_request (range,
1566 slider_width, stepper_size,
1567 focus_width, trough_border, stepper_spacing,
1568 &range_rect, &border, NULL, NULL, NULL, NULL);
1570 *minimum = *natural = range_rect.height + border.top + border.bottom;
1574 modify_allocation_for_window_grip (GtkWidget *widget,
1575 GtkAllocation *allocation)
1577 GtkRange *range = GTK_RANGE (widget);
1578 GtkRangePrivate *priv = range->priv;
1579 GtkWidget *window, *parent;
1580 GdkRectangle grip_rect;
1581 GdkRectangle translated_rect;
1585 window = gtk_widget_get_toplevel (widget);
1586 if (!GTK_IS_WINDOW (window))
1589 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1592 /* Get the area of the window's corner grip */
1593 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1598 /* Translate the stepper's area into window coords.
1599 * This is slightly tricky. We can't just use
1600 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1601 * since that translates wrt to the _current_ allocation
1602 * and will lead to alternating between overlap and nonoverlap
1603 * for successive allocations.
1604 * Therefore, we find the window-widget to whose window allocation
1605 * is relative, and translate from there upwards.
1608 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1611 parent = gtk_widget_get_parent (parent);
1614 if (parent == window)
1615 translated_rect = *allocation;
1618 gtk_widget_translate_coordinates (gtk_widget_get_parent (widget),
1620 allocation->x, allocation->y,
1622 translated_rect.x = x;
1623 translated_rect.y = y;
1624 translated_rect.width = allocation->width;
1625 translated_rect.height = allocation->height;
1628 /* If the stepper button intersects the window resize grip.. */
1629 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, NULL))
1631 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1633 allocation->width -= grip_rect.width;
1634 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1635 allocation->x += grip_rect.width;
1639 allocation->height -= grip_rect.height;
1649 gtk_range_size_allocate (GtkWidget *widget,
1650 GtkAllocation *allocation)
1652 GtkRange *range = GTK_RANGE (widget);
1653 GtkRangePrivate *priv = range->priv;
1655 modify_allocation_for_window_grip (widget, allocation);
1656 gtk_widget_set_allocation (widget, allocation);
1658 priv->recalc_marks = TRUE;
1660 priv->need_recalc = TRUE;
1661 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1663 if (gtk_widget_get_realized (widget))
1664 gdk_window_move_resize (priv->event_window,
1665 allocation->x, allocation->y,
1666 allocation->width, allocation->height);
1670 resize_grip_visible_changed (GObject *object,
1674 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1678 gtk_range_hierarchy_changed (GtkWidget *widget,
1679 GtkWidget *previous_toplevel)
1683 if (previous_toplevel)
1684 g_signal_handlers_disconnect_by_func (previous_toplevel,
1685 G_CALLBACK (resize_grip_visible_changed),
1687 window = gtk_widget_get_toplevel (widget);
1688 if (gtk_widget_is_toplevel (window))
1689 g_signal_connect (window, "notify::resize-grip-visible",
1690 G_CALLBACK (resize_grip_visible_changed), widget);
1694 gtk_range_realize (GtkWidget *widget)
1696 GtkAllocation allocation;
1697 GtkRange *range = GTK_RANGE (widget);
1698 GtkRangePrivate *priv = range->priv;
1700 GdkWindowAttr attributes;
1701 gint attributes_mask;
1703 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1705 gtk_widget_set_realized (widget, TRUE);
1707 window = gtk_widget_get_parent_window (widget);
1708 gtk_widget_set_window (widget, window);
1709 g_object_ref (window);
1711 gtk_widget_get_allocation (widget, &allocation);
1712 if (modify_allocation_for_window_grip (widget, &allocation))
1713 gtk_widget_set_allocation (widget, &allocation);
1715 attributes.window_type = GDK_WINDOW_CHILD;
1716 attributes.x = allocation.x;
1717 attributes.y = allocation.y;
1718 attributes.width = allocation.width;
1719 attributes.height = allocation.height;
1720 attributes.wclass = GDK_INPUT_ONLY;
1721 attributes.event_mask = gtk_widget_get_events (widget);
1722 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1723 GDK_BUTTON_RELEASE_MASK |
1724 GDK_ENTER_NOTIFY_MASK |
1725 GDK_LEAVE_NOTIFY_MASK |
1726 GDK_POINTER_MOTION_MASK |
1727 GDK_POINTER_MOTION_HINT_MASK);
1729 attributes_mask = GDK_WA_X | GDK_WA_Y;
1731 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1732 &attributes, attributes_mask);
1733 gdk_window_set_user_data (priv->event_window, range);
1737 gtk_range_unrealize (GtkWidget *widget)
1739 GtkRange *range = GTK_RANGE (widget);
1740 GtkRangePrivate *priv = range->priv;
1742 gtk_range_remove_step_timer (range);
1744 gdk_window_set_user_data (priv->event_window, NULL);
1745 gdk_window_destroy (priv->event_window);
1746 priv->event_window = NULL;
1748 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1752 gtk_range_map (GtkWidget *widget)
1754 GtkRange *range = GTK_RANGE (widget);
1755 GtkRangePrivate *priv = range->priv;
1757 gdk_window_show (priv->event_window);
1759 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1763 gtk_range_unmap (GtkWidget *widget)
1765 GtkRange *range = GTK_RANGE (widget);
1766 GtkRangePrivate *priv = range->priv;
1768 stop_scrolling (range);
1770 gdk_window_hide (priv->event_window);
1772 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1776 _gtk_range_update_context_for_stepper (GtkRange *range,
1777 GtkStyleContext *context,
1780 GtkRangePrivate *priv = range->priv;
1781 GtkJunctionSides sides = 0;
1782 gboolean vertical, is_rtl;
1784 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1785 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1787 /* Take junction sides from what's been
1788 * previously set to the widget itself
1790 sides = gtk_style_context_get_junction_sides (context);
1793 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1795 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1801 sides |= GTK_JUNCTION_BOTTOM;
1803 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1806 if (priv->has_stepper_a)
1809 sides |= GTK_JUNCTION_TOP;
1811 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1815 sides |= GTK_JUNCTION_BOTTOM;
1817 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1820 if (priv->has_stepper_d)
1823 sides |= GTK_JUNCTION_BOTTOM;
1825 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1829 sides |= GTK_JUNCTION_TOP;
1831 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1835 sides |= GTK_JUNCTION_TOP;
1837 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1841 gtk_style_context_set_junction_sides (context, sides);
1842 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1846 draw_stepper (GtkRange *range,
1849 GtkArrowType arrow_type,
1851 gboolean prelighted)
1853 GtkRangePrivate *priv = range->priv;
1854 GtkAllocation allocation;
1855 GtkStateFlags state = 0;
1856 GtkStyleContext *context;
1857 GtkWidget *widget = GTK_WIDGET (range);
1859 gfloat arrow_scaling;
1863 gdouble arrow_size, angle;
1864 gboolean arrow_sensitive;
1869 rect = &priv->stepper_a;
1872 rect = &priv->stepper_b;
1875 rect = &priv->stepper_c;
1878 rect = &priv->stepper_d;
1881 g_assert_not_reached ();
1884 arrow_sensitive = TRUE;
1886 gtk_widget_get_allocation (widget, &allocation);
1888 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1889 arrow_type == GTK_ARROW_RIGHT)) ||
1890 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1891 arrow_type == GTK_ARROW_LEFT)))
1893 arrow_sensitive = priv->upper_sensitive;
1897 arrow_sensitive = priv->lower_sensitive;
1900 if (!gtk_widget_is_sensitive (GTK_WIDGET (range)) || !arrow_sensitive)
1901 state = GTK_STATE_FLAG_INSENSITIVE;
1905 state |= GTK_STATE_FLAG_ACTIVE;
1907 state |= GTK_STATE_FLAG_PRELIGHT;
1910 window = gtk_widget_get_window (widget);
1911 context = gtk_widget_get_style_context (widget);
1913 gtk_style_context_save (context);
1914 _gtk_range_update_context_for_stepper (range, context, stepper);
1915 gtk_style_context_set_state (context, state);
1917 gtk_render_background (context, cr,
1919 rect->width, rect->height);
1920 gtk_render_frame (context, cr,
1922 rect->width, rect->height);
1924 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1926 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1927 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1928 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1930 if (clicked && arrow_sensitive)
1932 gint arrow_displacement_x;
1933 gint arrow_displacement_y;
1935 gtk_range_get_props (GTK_RANGE (widget),
1936 NULL, NULL, NULL, NULL, NULL, NULL,
1937 &arrow_displacement_x, &arrow_displacement_y);
1939 arrow_x += arrow_displacement_x;
1940 arrow_y += arrow_displacement_y;
1945 case GTK_ARROW_RIGHT:
1948 case GTK_ARROW_DOWN:
1951 case GTK_ARROW_LEFT:
1952 angle = 3 * (G_PI / 2);
1960 gtk_render_arrow (context, cr,
1965 gtk_style_context_restore (context);
1969 gtk_range_draw (GtkWidget *widget,
1972 GtkRange *range = GTK_RANGE (widget);
1973 GtkRangePrivate *priv = range->priv;
1975 GtkStateFlags state = 0;
1977 gint focus_line_width = 0;
1978 gint focus_padding = 0;
1979 gboolean touchscreen;
1980 gboolean draw_trough = TRUE;
1981 GtkStyleContext *context;
1983 context = gtk_widget_get_style_context (widget);
1984 g_object_get (gtk_widget_get_settings (widget),
1985 "gtk-touchscreen-mode", &touchscreen,
1988 if (GTK_IS_SCALE (widget) &&
1989 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
1990 draw_trough = FALSE;
1992 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
1993 gtk_widget_style_get (GTK_WIDGET (range),
1994 "focus-line-width", &focus_line_width,
1995 "focus-padding", &focus_padding,
1998 window = gtk_widget_get_window (widget);
2000 /* we're now exposing, so there's no need to force early repaints */
2001 if (priv->repaint_id)
2002 g_source_remove (priv->repaint_id);
2003 priv->repaint_id = 0;
2005 gtk_range_calc_marks (range);
2006 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2008 sensitive = gtk_widget_is_sensitive (widget);
2010 /* Just to be confusing, we draw the trough for the whole
2011 * range rectangle, not the trough rectangle (the trough
2012 * rectangle is just for hit detection)
2015 gdk_cairo_rectangle (cr, &priv->range_rect);
2019 gint x = (priv->range_rect.x +
2020 focus_line_width + focus_padding);
2021 gint y = (priv->range_rect.y +
2022 focus_line_width + focus_padding);
2023 gint width = (priv->range_rect.width -
2024 2 * (focus_line_width + focus_padding));
2025 gint height = (priv->range_rect.height -
2026 2 * (focus_line_width + focus_padding));
2027 gboolean trough_under_steppers;
2029 gint stepper_spacing;
2031 gtk_widget_style_get (GTK_WIDGET (range),
2032 "trough-under-steppers", &trough_under_steppers,
2033 "stepper-size", &stepper_size,
2034 "stepper-spacing", &stepper_spacing,
2037 gtk_style_context_save (context);
2040 gtk_style_context_set_state (context, GTK_STATE_FLAG_INSENSITIVE);
2042 if (stepper_spacing > 0)
2043 trough_under_steppers = FALSE;
2045 if (!trough_under_steppers)
2050 if (priv->has_stepper_a)
2051 offset += stepper_size;
2053 if (priv->has_stepper_b)
2054 offset += stepper_size;
2058 if (priv->has_stepper_c)
2059 shorter += stepper_size;
2061 if (priv->has_stepper_d)
2062 shorter += stepper_size;
2064 if (priv->has_stepper_a || priv->has_stepper_b)
2066 offset += stepper_spacing;
2067 shorter += stepper_spacing;
2070 if (priv->has_stepper_c || priv->has_stepper_d)
2072 shorter += stepper_spacing;
2075 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2087 gtk_style_context_save (context);
2088 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2092 gint trough_change_pos_x = width;
2093 gint trough_change_pos_y = height;
2095 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2096 trough_change_pos_x = (priv->slider.x +
2097 priv->slider.width / 2 -
2100 trough_change_pos_y = (priv->slider.y +
2101 priv->slider.height / 2 -
2104 /* FIXME: was trough-upper and trough-lower really used,
2105 * in that case, it should still be exposed somehow.
2107 gtk_render_background (context, cr, x, y,
2108 trough_change_pos_x,
2109 trough_change_pos_y);
2111 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2112 trough_change_pos_y = 0;
2114 trough_change_pos_x = 0;
2116 gtk_render_background (context, cr,
2117 x + trough_change_pos_x, y + trough_change_pos_y,
2118 width - trough_change_pos_x,
2119 height - trough_change_pos_y);
2121 gtk_render_frame (context, cr,
2122 x, y, width, height);
2126 gtk_render_background (context, cr,
2127 x, y, width, height);
2128 gtk_render_frame (context, cr,
2129 x, y, width, height);
2132 gtk_style_context_restore (context);
2134 if (priv->show_fill_level &&
2135 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2136 gtk_adjustment_get_lower (priv->adjustment) != 0)
2138 gdouble fill_level = priv->fill_level;
2141 gint fill_width = width;
2142 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;
2181 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2182 fill_detail = "trough-fill-level-full";
2184 fill_detail = "trough-fill-level";
2186 gtk_render_activity (context, cr,
2188 fill_width, fill_height);
2190 gtk_style_context_restore (context);
2193 gtk_style_context_restore (context);
2195 if (sensitive && gtk_widget_has_focus (widget))
2197 gtk_style_context_save (context);
2198 gtk_style_context_set_state (context,
2199 gtk_widget_get_state_flags (widget));
2201 gtk_render_focus (context, cr,
2204 priv->range_rect.width,
2205 priv->range_rect.height);
2207 gtk_style_context_restore (context);
2214 state = GTK_STATE_FLAG_INSENSITIVE;
2215 else if (!touchscreen && priv->mouse_location == MOUSE_SLIDER)
2216 state = GTK_STATE_FLAG_PRELIGHT;
2218 if (priv->grab_location == MOUSE_SLIDER)
2219 state |= GTK_STATE_FLAG_ACTIVE;
2222 gdk_cairo_rectangle (cr, &priv->slider);
2227 gtk_style_context_save (context);
2228 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2229 gtk_style_context_set_state (context, state);
2231 gtk_render_slider (context, cr,
2235 priv->slider.height,
2238 gtk_style_context_restore (context);
2243 if (priv->has_stepper_a)
2244 draw_stepper (range, STEPPER_A, cr,
2245 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2246 priv->grab_location == MOUSE_STEPPER_A,
2247 !touchscreen && priv->mouse_location == MOUSE_STEPPER_A);
2249 if (priv->has_stepper_b)
2250 draw_stepper (range, STEPPER_B, cr,
2251 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2252 priv->grab_location == MOUSE_STEPPER_B,
2253 !touchscreen && priv->mouse_location == MOUSE_STEPPER_B);
2255 if (priv->has_stepper_c)
2256 draw_stepper (range, STEPPER_C, cr,
2257 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2258 priv->grab_location == MOUSE_STEPPER_C,
2259 !touchscreen && priv->mouse_location == MOUSE_STEPPER_C);
2261 if (priv->has_stepper_d)
2262 draw_stepper (range, STEPPER_D, cr,
2263 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2264 priv->grab_location == MOUSE_STEPPER_D,
2265 !touchscreen && priv->mouse_location == MOUSE_STEPPER_D);
2271 range_grab_add (GtkRange *range,
2273 MouseLocation location,
2276 GtkRangePrivate *priv = range->priv;
2278 if (device == priv->grab_device)
2281 if (priv->grab_device != NULL)
2283 g_warning ("GtkRange already had a grab device, releasing device grab");
2284 gtk_device_grab_remove (GTK_WIDGET (range), priv->grab_device);
2287 /* we don't actually gdk_grab, since a button is down */
2288 gtk_device_grab_add (GTK_WIDGET (range), device, TRUE);
2290 priv->grab_location = location;
2291 priv->grab_button = button;
2292 priv->grab_device = device;
2294 if (gtk_range_update_mouse_location (range))
2295 gtk_widget_queue_draw (GTK_WIDGET (range));
2299 range_grab_remove (GtkRange *range)
2301 GtkRangePrivate *priv = range->priv;
2302 MouseLocation location;
2304 if (priv->grab_device)
2306 gtk_device_grab_remove (GTK_WIDGET (range),
2308 priv->grab_device = NULL;
2311 location = priv->grab_location;
2312 priv->grab_location = MOUSE_OUTSIDE;
2313 priv->grab_button = 0;
2315 if (gtk_range_update_mouse_location (range) ||
2316 location != MOUSE_OUTSIDE)
2317 gtk_widget_queue_draw (GTK_WIDGET (range));
2320 static GtkScrollType
2321 range_get_scroll_for_grab (GtkRange *range)
2323 GtkRangePrivate *priv = range->priv;
2326 invert = should_invert (range);
2327 switch (priv->grab_location)
2329 /* Backward stepper */
2330 case MOUSE_STEPPER_A:
2331 case MOUSE_STEPPER_C:
2332 switch (priv->grab_button)
2335 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2338 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2341 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2346 /* Forward stepper */
2347 case MOUSE_STEPPER_B:
2348 case MOUSE_STEPPER_D:
2349 switch (priv->grab_button)
2352 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2355 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2358 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2366 if (priv->trough_click_forward)
2367 return GTK_SCROLL_PAGE_FORWARD;
2369 return GTK_SCROLL_PAGE_BACKWARD;
2379 return GTK_SCROLL_NONE;
2383 coord_to_value (GtkRange *range,
2386 GtkRangePrivate *priv = range->priv;
2393 gint trough_under_steppers;
2395 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2397 trough_length = priv->trough.height;
2398 trough_start = priv->trough.y;
2399 slider_length = priv->slider.height;
2403 trough_length = priv->trough.width;
2404 trough_start = priv->trough.x;
2405 slider_length = priv->slider.width;
2408 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2409 &trough_under_steppers, NULL, NULL);
2411 if (! trough_under_steppers)
2413 trough_start += trough_border;
2414 trough_length -= 2 * trough_border;
2417 if (trough_length == slider_length)
2420 frac = (MAX (0, coord - trough_start) /
2421 (gdouble) (trough_length - slider_length));
2423 if (should_invert (range))
2426 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2427 gtk_adjustment_get_lower (priv->adjustment) -
2428 gtk_adjustment_get_page_size (priv->adjustment));
2434 gtk_range_key_press (GtkWidget *widget,
2438 GtkRange *range = GTK_RANGE (widget);
2439 GtkRangePrivate *priv = range->priv;
2441 device = gdk_event_get_device ((GdkEvent *) event);
2442 device = gdk_device_get_associated_device (device);
2444 if (device == priv->grab_device &&
2445 event->keyval == GDK_KEY_Escape &&
2446 priv->grab_location != MOUSE_OUTSIDE)
2448 stop_scrolling (range);
2450 update_slider_position (range,
2451 priv->slide_initial_coordinate,
2452 priv->slide_initial_coordinate);
2457 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2461 gtk_range_button_press (GtkWidget *widget,
2462 GdkEventButton *event)
2464 GtkRange *range = GTK_RANGE (widget);
2465 GtkRangePrivate *priv = range->priv;
2468 if (!gtk_widget_has_focus (widget))
2469 gtk_widget_grab_focus (widget);
2471 /* ignore presses when we're already doing something else. */
2472 if (priv->grab_location != MOUSE_OUTSIDE)
2475 device = gdk_event_get_device ((GdkEvent *) event);
2476 priv->mouse_x = event->x;
2477 priv->mouse_y = event->y;
2479 if (gtk_range_update_mouse_location (range))
2480 gtk_widget_queue_draw (widget);
2482 if (priv->mouse_location == MOUSE_TROUGH &&
2485 /* button 1 steps by page increment, as with button 2 on a stepper
2487 GtkScrollType scroll;
2488 gdouble click_value;
2490 click_value = coord_to_value (range,
2491 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2492 event->y : event->x);
2494 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2495 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2497 scroll = range_get_scroll_for_grab (range);
2499 gtk_range_add_step_timer (range, scroll);
2503 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2504 priv->mouse_location == MOUSE_STEPPER_B ||
2505 priv->mouse_location == MOUSE_STEPPER_C ||
2506 priv->mouse_location == MOUSE_STEPPER_D) &&
2507 (event->button == 1 || event->button == 2 || event->button == 3))
2509 GtkAllocation allocation;
2510 GdkRectangle *stepper_area;
2511 GtkScrollType scroll;
2513 range_grab_add (range, device, priv->mouse_location, event->button);
2515 gtk_widget_get_allocation (widget, &allocation);
2516 stepper_area = get_area (range, priv->mouse_location);
2518 gtk_widget_queue_draw_area (widget,
2519 allocation.x + stepper_area->x,
2520 allocation.y + stepper_area->y,
2521 stepper_area->width,
2522 stepper_area->height);
2524 scroll = range_get_scroll_for_grab (range);
2525 if (scroll != GTK_SCROLL_NONE)
2526 gtk_range_add_step_timer (range, scroll);
2530 else if ((priv->mouse_location == MOUSE_TROUGH &&
2531 event->button == 2) ||
2532 priv->mouse_location == MOUSE_SLIDER)
2534 gboolean need_value_update = FALSE;
2536 /* Any button can be used to drag the slider, but you can start
2537 * dragging the slider with a trough click using button 2;
2538 * On button 2 press, we warp the slider to mouse position,
2539 * then begin the slider drag.
2541 if (event->button == 2)
2543 gdouble slider_low_value, slider_high_value, new_value;
2546 coord_to_value (range,
2547 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2548 event->y : event->x);
2550 coord_to_value (range,
2551 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2552 event->y - priv->slider.height :
2553 event->x - priv->slider.width);
2555 /* compute new value for warped slider */
2556 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2558 /* recalc slider, so we can set slide_initial_slider_position
2561 priv->need_recalc = TRUE;
2562 gtk_range_calc_layout (range, new_value);
2564 /* defer adjustment updates to update_slider_position() in order
2565 * to keep pixel quantisation
2567 need_value_update = TRUE;
2570 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2572 priv->slide_initial_slider_position = priv->slider.y;
2573 priv->slide_initial_coordinate = event->y;
2577 priv->slide_initial_slider_position = priv->slider.x;
2578 priv->slide_initial_coordinate = event->x;
2581 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2583 gtk_widget_queue_draw (widget);
2585 if (need_value_update)
2586 update_slider_position (range, event->x, event->y);
2594 /* During a slide, move the slider as required given new mouse position */
2596 update_slider_position (GtkRange *range,
2600 GtkRangePrivate *priv = range->priv;
2610 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2611 delta = mouse_y - priv->slide_initial_coordinate;
2613 delta = mouse_x - priv->slide_initial_coordinate;
2615 c = priv->slide_initial_slider_position + delta;
2617 new_value = coord_to_value (range, c);
2618 next_value = coord_to_value (range, c + 1);
2619 mark_delta = fabs (next_value - new_value);
2621 for (i = 0; i < priv->n_marks; i++)
2623 mark_value = priv->marks[i];
2625 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2627 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2629 new_value = mark_value;
2635 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2640 stop_scrolling (GtkRange *range)
2642 range_grab_remove (range);
2643 gtk_range_remove_step_timer (range);
2647 gtk_range_grab_broken (GtkWidget *widget,
2648 GdkEventGrabBroken *event)
2650 GtkRange *range = GTK_RANGE (widget);
2651 GtkRangePrivate *priv = range->priv;
2654 device = gdk_event_get_device ((GdkEvent *) event);
2656 if (device == priv->grab_device &&
2657 priv->grab_location != MOUSE_OUTSIDE)
2659 if (priv->grab_location == MOUSE_SLIDER)
2660 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2662 stop_scrolling (range);
2671 gtk_range_button_release (GtkWidget *widget,
2672 GdkEventButton *event)
2674 GtkRange *range = GTK_RANGE (widget);
2675 GtkRangePrivate *priv = range->priv;
2678 if (event->window == priv->event_window)
2680 priv->mouse_x = event->x;
2681 priv->mouse_y = event->y;
2685 gdk_window_get_device_position (priv->event_window,
2692 device = gdk_event_get_device ((GdkEvent *) event);
2694 if (priv->grab_device == device &&
2695 priv->grab_button == event->button)
2697 if (priv->grab_location == MOUSE_SLIDER)
2698 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2700 stop_scrolling (range);
2709 * _gtk_range_get_wheel_delta:
2710 * @range: a #GtkRange
2711 * @direction: A #GdkScrollDirection
2713 * Returns a good step value for the mouse wheel.
2715 * Return value: A good step value for the mouse wheel.
2720 _gtk_range_get_wheel_delta (GtkRange *range,
2721 GdkScrollDirection direction)
2723 GtkRangePrivate *priv = range->priv;
2724 GtkAdjustment *adjustment = priv->adjustment;
2727 if (GTK_IS_SCROLLBAR (range))
2728 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2730 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2732 if (direction == GDK_SCROLL_UP ||
2733 direction == GDK_SCROLL_LEFT)
2743 gtk_range_scroll_event (GtkWidget *widget,
2744 GdkEventScroll *event)
2746 GtkRange *range = GTK_RANGE (widget);
2747 GtkRangePrivate *priv = range->priv;
2749 if (gtk_widget_get_realized (widget))
2754 delta = _gtk_range_get_wheel_delta (range, event->direction);
2756 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2757 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2765 gtk_range_motion_notify (GtkWidget *widget,
2766 GdkEventMotion *event)
2768 GtkRange *range = GTK_RANGE (widget);
2769 GtkRangePrivate *priv = range->priv;
2771 gdk_event_request_motions (event);
2773 priv->mouse_x = event->x;
2774 priv->mouse_y = event->y;
2776 if (gtk_range_update_mouse_location (range))
2777 gtk_widget_queue_draw (widget);
2779 if (priv->grab_location == MOUSE_SLIDER)
2780 update_slider_position (range, event->x, event->y);
2782 /* We handled the event if the mouse was in the range_rect */
2783 return priv->mouse_location != MOUSE_OUTSIDE;
2787 gtk_range_enter_notify (GtkWidget *widget,
2788 GdkEventCrossing *event)
2790 GtkRange *range = GTK_RANGE (widget);
2791 GtkRangePrivate *priv = range->priv;
2793 priv->mouse_x = event->x;
2794 priv->mouse_y = event->y;
2796 if (gtk_range_update_mouse_location (range))
2797 gtk_widget_queue_draw (widget);
2803 gtk_range_leave_notify (GtkWidget *widget,
2804 GdkEventCrossing *event)
2806 GtkRange *range = GTK_RANGE (widget);
2807 GtkRangePrivate *priv = range->priv;
2812 if (gtk_range_update_mouse_location (range))
2813 gtk_widget_queue_draw (widget);
2819 gtk_range_grab_notify (GtkWidget *widget,
2820 gboolean was_grabbed)
2822 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2824 if (priv->grab_device &&
2825 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2826 stop_scrolling (GTK_RANGE (widget));
2830 gtk_range_state_flags_changed (GtkWidget *widget,
2831 GtkStateFlags previous_state)
2833 if (!gtk_widget_is_sensitive (widget))
2834 stop_scrolling (GTK_RANGE (widget));
2837 #define check_rectangle(rectangle1, rectangle2) \
2839 if (rectangle1.x != rectangle2.x) return TRUE; \
2840 if (rectangle1.y != rectangle2.y) return TRUE; \
2841 if (rectangle1.width != rectangle2.width) return TRUE; \
2842 if (rectangle1.height != rectangle2.height) return TRUE; \
2846 layout_changed (GtkRangePrivate *priv1,
2847 GtkRangePrivate *priv2)
2849 check_rectangle (priv1->slider, priv2->slider);
2850 check_rectangle (priv1->trough, priv2->trough);
2851 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2852 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2853 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2854 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2856 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2857 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2863 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2866 GtkRange *range = GTK_RANGE (data);
2867 GtkRangePrivate *priv = range->priv;
2868 GtkRangePrivate priv_aux = *priv;
2870 priv->recalc_marks = TRUE;
2871 priv->need_recalc = TRUE;
2872 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2874 /* now check whether the layout changed */
2875 if (layout_changed (priv, &priv_aux))
2876 gtk_widget_queue_draw (GTK_WIDGET (range));
2878 /* Note that we don't round off to priv->round_digits here.
2879 * that's because it's really broken to change a value
2880 * in response to a change signal on that value; round_digits
2881 * is therefore defined to be a filter on what the GtkRange
2882 * can input into the adjustment, not a filter that the GtkRange
2883 * will enforce on the adjustment.
2888 force_repaint (gpointer data)
2890 GtkRange *range = GTK_RANGE (data);
2891 GtkRangePrivate *priv = range->priv;
2892 GtkWidget *widget = GTK_WIDGET (range);
2894 priv->repaint_id = 0;
2895 if (gtk_widget_is_drawable (widget))
2896 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2902 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2905 GtkRange *range = GTK_RANGE (data);
2906 GtkRangePrivate *priv = range->priv;
2907 GtkRangePrivate priv_aux = *priv;
2909 priv->need_recalc = TRUE;
2910 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2912 /* now check whether the layout changed */
2913 if (layout_changed (priv, &priv_aux) ||
2914 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2916 gtk_widget_queue_draw (GTK_WIDGET (range));
2917 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2918 if (!priv->repaint_id)
2919 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2924 /* Note that we don't round off to priv->round_digits here.
2925 * that's because it's really broken to change a value
2926 * in response to a change signal on that value; round_digits
2927 * is therefore defined to be a filter on what the GtkRange
2928 * can input into the adjustment, not a filter that the GtkRange
2929 * will enforce on the adjustment.
2932 g_signal_emit (range, signals[VALUE_CHANGED], 0);
2936 gtk_range_style_updated (GtkWidget *widget)
2938 GtkRange *range = GTK_RANGE (widget);
2939 GtkRangePrivate *priv = range->priv;
2941 priv->need_recalc = TRUE;
2943 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
2947 apply_marks (GtkRange *range,
2951 GtkRangePrivate *priv = range->priv;
2955 for (i = 0; i < priv->n_marks; i++)
2957 mark = priv->marks[i];
2958 if ((oldval < mark && mark < *newval) ||
2959 (oldval > mark && mark > *newval))
2968 step_back (GtkRange *range)
2970 GtkRangePrivate *priv = range->priv;
2974 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
2975 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2976 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2977 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
2981 step_forward (GtkRange *range)
2983 GtkRangePrivate *priv = range->priv;
2987 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
2988 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2989 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2990 GTK_SCROLL_STEP_FORWARD, newval, &handled);
2995 page_back (GtkRange *range)
2997 GtkRangePrivate *priv = range->priv;
3001 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3002 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3003 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3004 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3008 page_forward (GtkRange *range)
3010 GtkRangePrivate *priv = range->priv;
3014 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3015 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3016 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3017 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3021 scroll_begin (GtkRange *range)
3023 GtkRangePrivate *priv = range->priv;
3026 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3027 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3032 scroll_end (GtkRange *range)
3034 GtkRangePrivate *priv = range->priv;
3038 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3039 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3044 gtk_range_scroll (GtkRange *range,
3045 GtkScrollType scroll)
3047 GtkRangePrivate *priv = range->priv;
3048 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3052 case GTK_SCROLL_STEP_LEFT:
3053 if (should_invert (range))
3054 step_forward (range);
3059 case GTK_SCROLL_STEP_UP:
3060 if (should_invert (range))
3061 step_forward (range);
3066 case GTK_SCROLL_STEP_RIGHT:
3067 if (should_invert (range))
3070 step_forward (range);
3073 case GTK_SCROLL_STEP_DOWN:
3074 if (should_invert (range))
3077 step_forward (range);
3080 case GTK_SCROLL_STEP_BACKWARD:
3084 case GTK_SCROLL_STEP_FORWARD:
3085 step_forward (range);
3088 case GTK_SCROLL_PAGE_LEFT:
3089 if (should_invert (range))
3090 page_forward (range);
3095 case GTK_SCROLL_PAGE_UP:
3096 if (should_invert (range))
3097 page_forward (range);
3102 case GTK_SCROLL_PAGE_RIGHT:
3103 if (should_invert (range))
3106 page_forward (range);
3109 case GTK_SCROLL_PAGE_DOWN:
3110 if (should_invert (range))
3113 page_forward (range);
3116 case GTK_SCROLL_PAGE_BACKWARD:
3120 case GTK_SCROLL_PAGE_FORWARD:
3121 page_forward (range);
3124 case GTK_SCROLL_START:
3125 scroll_begin (range);
3128 case GTK_SCROLL_END:
3132 case GTK_SCROLL_JUMP:
3133 /* Used by CList, range doesn't use it. */
3136 case GTK_SCROLL_NONE:
3140 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3144 gtk_range_move_slider (GtkRange *range,
3145 GtkScrollType scroll)
3147 GtkRangePrivate *priv = range->priv;
3148 gboolean cursor_only;
3150 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3151 "gtk-keynav-cursor-only", &cursor_only,
3156 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3158 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3160 if (scroll == GTK_SCROLL_STEP_UP ||
3161 scroll == GTK_SCROLL_STEP_DOWN)
3164 gtk_widget_child_focus (toplevel,
3165 scroll == GTK_SCROLL_STEP_UP ?
3166 GTK_DIR_UP : GTK_DIR_DOWN);
3172 if (scroll == GTK_SCROLL_STEP_LEFT ||
3173 scroll == GTK_SCROLL_STEP_RIGHT)
3176 gtk_widget_child_focus (toplevel,
3177 scroll == GTK_SCROLL_STEP_LEFT ?
3178 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3184 if (! gtk_range_scroll (range, scroll))
3185 gtk_widget_error_bell (GTK_WIDGET (range));
3189 gtk_range_get_props (GtkRange *range,
3193 gint *trough_border,
3194 gint *stepper_spacing,
3195 gboolean *trough_under_steppers,
3196 gint *arrow_displacement_x,
3197 gint *arrow_displacement_y)
3199 GtkWidget *widget = GTK_WIDGET (range);
3200 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3201 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3202 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3204 gtk_widget_style_get (widget,
3205 "slider-width", &tmp_slider_width,
3206 "trough-border", &tmp_trough_border,
3207 "stepper-size", &tmp_stepper_size,
3208 "stepper-spacing", &tmp_stepper_spacing,
3209 "trough-under-steppers", &tmp_trough_under_steppers,
3210 "arrow-displacement-x", &tmp_arrow_displacement_x,
3211 "arrow-displacement-y", &tmp_arrow_displacement_y,
3214 if (tmp_stepper_spacing > 0)
3215 tmp_trough_under_steppers = FALSE;
3217 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
3219 gint focus_line_width;
3222 gtk_widget_style_get (GTK_WIDGET (range),
3223 "focus-line-width", &focus_line_width,
3224 "focus-padding", &focus_padding,
3227 tmp_focus_width = focus_line_width + focus_padding;
3231 tmp_focus_width = 0;
3235 *slider_width = tmp_slider_width;
3238 *focus_width = tmp_focus_width;
3241 *trough_border = tmp_trough_border;
3244 *stepper_size = tmp_stepper_size;
3246 if (stepper_spacing)
3247 *stepper_spacing = tmp_stepper_spacing;
3249 if (trough_under_steppers)
3250 *trough_under_steppers = tmp_trough_under_steppers;
3252 if (arrow_displacement_x)
3253 *arrow_displacement_x = tmp_arrow_displacement_x;
3255 if (arrow_displacement_y)
3256 *arrow_displacement_y = tmp_arrow_displacement_y;
3259 #define POINT_IN_RECT(xcoord, ycoord, rect) \
3260 ((xcoord) >= (rect).x && \
3261 (xcoord) < ((rect).x + (rect).width) && \
3262 (ycoord) >= (rect).y && \
3263 (ycoord) < ((rect).y + (rect).height))
3265 /* Update mouse location, return TRUE if it changes */
3267 gtk_range_update_mouse_location (GtkRange *range)
3269 GtkRangePrivate *priv = range->priv;
3270 GtkAllocation allocation;
3273 GtkWidget *widget = GTK_WIDGET (range);
3275 old = priv->mouse_location;
3280 gtk_widget_get_allocation (widget, &allocation);
3282 if (priv->grab_location != MOUSE_OUTSIDE)
3283 priv->mouse_location = priv->grab_location;
3284 else if (POINT_IN_RECT (x, y, priv->stepper_a))
3285 priv->mouse_location = MOUSE_STEPPER_A;
3286 else if (POINT_IN_RECT (x, y, priv->stepper_b))
3287 priv->mouse_location = MOUSE_STEPPER_B;
3288 else if (POINT_IN_RECT (x, y, priv->stepper_c))
3289 priv->mouse_location = MOUSE_STEPPER_C;
3290 else if (POINT_IN_RECT (x, y, priv->stepper_d))
3291 priv->mouse_location = MOUSE_STEPPER_D;
3292 else if (POINT_IN_RECT (x, y, priv->slider))
3293 priv->mouse_location = MOUSE_SLIDER;
3294 else if (POINT_IN_RECT (x, y, priv->trough))
3295 priv->mouse_location = MOUSE_TROUGH;
3296 else if (POINT_IN_RECT (x, y, allocation))
3297 priv->mouse_location = MOUSE_WIDGET;
3299 priv->mouse_location = MOUSE_OUTSIDE;
3301 return old != priv->mouse_location;
3304 /* Clamp rect, border inside widget->allocation, such that we prefer
3305 * to take space from border not rect in all directions, and prefer to
3306 * give space to border over rect in one direction.
3309 clamp_dimensions (GtkWidget *widget,
3312 gboolean border_expands_horizontally)
3314 GtkAllocation allocation;
3315 gint extra, shortage;
3317 g_return_if_fail (rect->x == 0);
3318 g_return_if_fail (rect->y == 0);
3319 g_return_if_fail (rect->width >= 0);
3320 g_return_if_fail (rect->height >= 0);
3322 gtk_widget_get_allocation (widget, &allocation);
3326 extra = allocation.width - border->left - border->right - rect->width;
3329 if (border_expands_horizontally)
3331 border->left += extra / 2;
3332 border->right += extra / 2 + extra % 2;
3336 rect->width += extra;
3340 /* See if we can fit rect, if not kill the border */
3341 shortage = rect->width - allocation.width;
3344 rect->width = allocation.width;
3345 /* lose the border */
3351 /* See if we can fit rect with borders */
3352 shortage = rect->width + border->left + border->right - allocation.width;
3355 /* Shrink borders */
3356 border->left -= shortage / 2;
3357 border->right -= shortage / 2 + shortage % 2;
3363 extra = allocation.height - border->top - border->bottom - rect->height;
3366 if (border_expands_horizontally)
3368 /* don't expand border vertically */
3369 rect->height += extra;
3373 border->top += extra / 2;
3374 border->bottom += extra / 2 + extra % 2;
3378 /* See if we can fit rect, if not kill the border */
3379 shortage = rect->height - allocation.height;
3382 rect->height = allocation.height;
3383 /* lose the border */
3389 /* See if we can fit rect with borders */
3390 shortage = rect->height + border->top + border->bottom - allocation.height;
3393 /* Shrink borders */
3394 border->top -= shortage / 2;
3395 border->bottom -= shortage / 2 + shortage % 2;
3401 gtk_range_calc_request (GtkRange *range,
3406 gint stepper_spacing,
3407 GdkRectangle *range_rect,
3410 gboolean *has_steppers_ab,
3411 gboolean *has_steppers_cd,
3412 gint *slider_length_p)
3414 GtkRangePrivate *priv = range->priv;
3425 if (GTK_RANGE_GET_CLASS (range)->get_range_border)
3426 GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
3431 if (priv->has_stepper_a)
3433 if (priv->has_stepper_b)
3435 if (priv->has_stepper_c)
3437 if (priv->has_stepper_d)
3440 n_steppers = n_steppers_ab + n_steppers_cd;
3442 slider_length = priv->min_slider_size;
3447 /* We never expand to fill available space in the small dimension
3448 * (i.e. vertical scrollbars are always a fixed width)
3450 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3452 range_rect->width = (focus_width + trough_border) * 2 + slider_width;
3453 range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3455 if (n_steppers_ab > 0)
3456 range_rect->height += stepper_spacing;
3458 if (n_steppers_cd > 0)
3459 range_rect->height += stepper_spacing;
3463 range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3464 range_rect->height = (focus_width + trough_border) * 2 + slider_width;
3466 if (n_steppers_ab > 0)
3467 range_rect->width += stepper_spacing;
3469 if (n_steppers_cd > 0)
3470 range_rect->width += stepper_spacing;
3474 *n_steppers_p = n_steppers;
3476 if (has_steppers_ab)
3477 *has_steppers_ab = (n_steppers_ab > 0);
3479 if (has_steppers_cd)
3480 *has_steppers_cd = (n_steppers_cd > 0);
3482 if (slider_length_p)
3483 *slider_length_p = slider_length;
3487 gtk_range_calc_layout (GtkRange *range,
3488 gdouble adjustment_value)
3490 GtkRangePrivate *priv = range->priv;
3491 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
3495 gboolean has_steppers_ab;
3496 gboolean has_steppers_cd;
3497 gboolean trough_under_steppers;
3498 GdkRectangle range_rect;
3501 if (!priv->need_recalc)
3504 /* If we have a too-small allocation, we prefer the steppers over
3505 * the trough/slider, probably the steppers are a more useful
3506 * feature in small spaces.
3508 * Also, we prefer to draw the range itself rather than the border
3509 * areas if there's a conflict, since the borders will be decoration
3510 * not controls. Though this depends on subclasses cooperating by
3511 * not drawing on priv->range_rect.
3514 widget = GTK_WIDGET (range);
3516 gtk_range_get_props (range,
3517 &slider_width, &stepper_size,
3518 &focus_width, &trough_border,
3519 &stepper_spacing, &trough_under_steppers,
3522 gtk_range_calc_request (range,
3523 slider_width, stepper_size,
3524 focus_width, trough_border, stepper_spacing,
3525 &range_rect, &border, &n_steppers,
3526 &has_steppers_ab, &has_steppers_cd, &slider_length);
3528 /* We never expand to fill available space in the small dimension
3529 * (i.e. vertical scrollbars are always a fixed width)
3531 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3533 clamp_dimensions (widget, &range_rect, &border, TRUE);
3537 clamp_dimensions (widget, &range_rect, &border, FALSE);
3540 range_rect.x = border.left;
3541 range_rect.y = border.top;
3543 priv->range_rect = range_rect;
3545 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3547 gint stepper_width, stepper_height;
3549 /* Steppers are the width of the range, and stepper_size in
3550 * height, or if we don't have enough height, divided equally
3551 * among available space.
3553 stepper_width = range_rect.width - focus_width * 2;
3555 if (trough_under_steppers)
3556 stepper_width -= trough_border * 2;
3558 if (stepper_width < 1)
3559 stepper_width = range_rect.width; /* screw the trough border */
3561 if (n_steppers == 0)
3562 stepper_height = 0; /* avoid divide by n_steppers */
3564 stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
3568 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3569 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3571 if (priv->has_stepper_a)
3573 priv->stepper_a.width = stepper_width;
3574 priv->stepper_a.height = stepper_height;
3578 priv->stepper_a.width = 0;
3579 priv->stepper_a.height = 0;
3584 priv->stepper_b.x = priv->stepper_a.x;
3585 priv->stepper_b.y = priv->stepper_a.y + priv->stepper_a.height;
3587 if (priv->has_stepper_b)
3589 priv->stepper_b.width = stepper_width;
3590 priv->stepper_b.height = stepper_height;
3594 priv->stepper_b.width = 0;
3595 priv->stepper_b.height = 0;
3600 if (priv->has_stepper_d)
3602 priv->stepper_d.width = stepper_width;
3603 priv->stepper_d.height = stepper_height;
3607 priv->stepper_d.width = 0;
3608 priv->stepper_d.height = 0;
3611 priv->stepper_d.x = priv->stepper_a.x;
3612 priv->stepper_d.y = range_rect.y + range_rect.height - priv->stepper_d.height - focus_width - trough_border * trough_under_steppers;
3616 if (priv->has_stepper_c)
3618 priv->stepper_c.width = stepper_width;
3619 priv->stepper_c.height = stepper_height;
3623 priv->stepper_c.width = 0;
3624 priv->stepper_c.height = 0;
3627 priv->stepper_c.x = priv->stepper_a.x;
3628 priv->stepper_c.y = priv->stepper_d.y - priv->stepper_c.height;
3630 /* Now the trough is the remaining space between steppers B and C,
3631 * if any, minus spacing
3633 priv->trough.x = range_rect.x;
3634 priv->trough.y = priv->stepper_b.y + priv->stepper_b.height + stepper_spacing * has_steppers_ab;
3635 priv->trough.width = range_rect.width;
3636 priv->trough.height = priv->stepper_c.y - priv->trough.y - stepper_spacing * has_steppers_cd;
3638 /* Slider fits into the trough, with stepper_spacing on either side,
3639 * and the size/position based on the adjustment or fixed, depending.
3641 priv->slider.x = priv->trough.x + focus_width + trough_border;
3642 priv->slider.width = priv->trough.width - (focus_width + trough_border) * 2;
3644 /* Compute slider position/length */
3646 gint y, bottom, top, height;
3648 top = priv->trough.y;
3649 bottom = priv->trough.y + priv->trough.height;
3651 if (! trough_under_steppers)
3653 top += trough_border;
3654 bottom -= trough_border;
3657 /* slider height is the fraction (page_size /
3658 * total_adjustment_range) times the trough height in pixels
3661 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3662 height = ((bottom - top) * (gtk_adjustment_get_page_size (priv->adjustment) /
3663 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3665 height = priv->min_slider_size;
3667 if (height < priv->min_slider_size ||
3668 priv->slider_size_fixed)
3669 height = priv->min_slider_size;
3671 height = MIN (height, priv->trough.height);
3675 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3676 y += (bottom - top - height) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3677 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3679 y = CLAMP (y, top, bottom);
3681 if (should_invert (range))
3682 y = bottom - (y - top + height);
3685 priv->slider.height = height;
3687 /* These are publically exported */
3688 priv->slider_start = priv->slider.y;
3689 priv->slider_end = priv->slider.y + priv->slider.height;
3694 gint stepper_width, stepper_height;
3696 /* Steppers are the height of the range, and stepper_size in
3697 * width, or if we don't have enough width, divided equally
3698 * among available space.
3700 stepper_height = range_rect.height + focus_width * 2;
3702 if (trough_under_steppers)
3703 stepper_height -= trough_border * 2;
3705 if (stepper_height < 1)
3706 stepper_height = range_rect.height; /* screw the trough border */
3708 if (n_steppers == 0)
3709 stepper_width = 0; /* avoid divide by n_steppers */
3711 stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
3715 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3716 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3718 if (priv->has_stepper_a)
3720 priv->stepper_a.width = stepper_width;
3721 priv->stepper_a.height = stepper_height;
3725 priv->stepper_a.width = 0;
3726 priv->stepper_a.height = 0;
3731 priv->stepper_b.x = priv->stepper_a.x + priv->stepper_a.width;
3732 priv->stepper_b.y = priv->stepper_a.y;
3734 if (priv->has_stepper_b)
3736 priv->stepper_b.width = stepper_width;
3737 priv->stepper_b.height = stepper_height;
3741 priv->stepper_b.width = 0;
3742 priv->stepper_b.height = 0;
3747 if (priv->has_stepper_d)
3749 priv->stepper_d.width = stepper_width;
3750 priv->stepper_d.height = stepper_height;
3754 priv->stepper_d.width = 0;
3755 priv->stepper_d.height = 0;
3758 priv->stepper_d.x = range_rect.x + range_rect.width - priv->stepper_d.width - focus_width - trough_border * trough_under_steppers;
3759 priv->stepper_d.y = priv->stepper_a.y;
3764 if (priv->has_stepper_c)
3766 priv->stepper_c.width = stepper_width;
3767 priv->stepper_c.height = stepper_height;
3771 priv->stepper_c.width = 0;
3772 priv->stepper_c.height = 0;
3775 priv->stepper_c.x = priv->stepper_d.x - priv->stepper_c.width;
3776 priv->stepper_c.y = priv->stepper_a.y;
3778 /* Now the trough is the remaining space between steppers B and C,
3781 priv->trough.x = priv->stepper_b.x + priv->stepper_b.width + stepper_spacing * has_steppers_ab;
3782 priv->trough.y = range_rect.y;
3784 priv->trough.width = priv->stepper_c.x - priv->trough.x - stepper_spacing * has_steppers_cd;
3785 priv->trough.height = range_rect.height;
3787 /* Slider fits into the trough, with stepper_spacing on either side,
3788 * and the size/position based on the adjustment or fixed, depending.
3790 priv->slider.y = priv->trough.y + focus_width + trough_border;
3791 priv->slider.height = priv->trough.height - (focus_width + trough_border) * 2;
3793 /* Compute slider position/length */
3795 gint x, left, right, width;
3797 left = priv->trough.x;
3798 right = priv->trough.x + priv->trough.width;
3800 if (! trough_under_steppers)
3802 left += trough_border;
3803 right -= trough_border;
3806 /* slider width is the fraction (page_size /
3807 * total_adjustment_range) times the trough width in pixels
3810 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3811 width = ((right - left) * (gtk_adjustment_get_page_size (priv->adjustment) /
3812 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3814 width = priv->min_slider_size;
3816 if (width < priv->min_slider_size ||
3817 priv->slider_size_fixed)
3818 width = priv->min_slider_size;
3820 width = MIN (width, priv->trough.width);
3824 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3825 x += (right - left - width) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3826 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3828 x = CLAMP (x, left, right);
3830 if (should_invert (range))
3831 x = right - (x - left + width);
3834 priv->slider.width = width;
3836 /* These are publically exported */
3837 priv->slider_start = priv->slider.x;
3838 priv->slider_end = priv->slider.x + priv->slider.width;
3842 gtk_range_update_mouse_location (range);
3844 switch (priv->upper_sensitivity)
3846 case GTK_SENSITIVITY_AUTO:
3847 priv->upper_sensitive =
3848 (gtk_adjustment_get_value (priv->adjustment) <
3849 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3852 case GTK_SENSITIVITY_ON:
3853 priv->upper_sensitive = TRUE;
3856 case GTK_SENSITIVITY_OFF:
3857 priv->upper_sensitive = FALSE;
3861 switch (priv->lower_sensitivity)
3863 case GTK_SENSITIVITY_AUTO:
3864 priv->lower_sensitive =
3865 (gtk_adjustment_get_value (priv->adjustment) > gtk_adjustment_get_lower (priv->adjustment));
3868 case GTK_SENSITIVITY_ON:
3869 priv->lower_sensitive = TRUE;
3872 case GTK_SENSITIVITY_OFF:
3873 priv->lower_sensitive = FALSE;
3878 static GdkRectangle*
3879 get_area (GtkRange *range,
3880 MouseLocation location)
3882 GtkRangePrivate *priv = range->priv;
3886 case MOUSE_STEPPER_A:
3887 return &priv->stepper_a;
3888 case MOUSE_STEPPER_B:
3889 return &priv->stepper_b;
3890 case MOUSE_STEPPER_C:
3891 return &priv->stepper_c;
3892 case MOUSE_STEPPER_D:
3893 return &priv->stepper_d;
3895 return &priv->trough;
3897 return &priv->slider;
3903 g_warning (G_STRLOC": bug");
3908 gtk_range_calc_marks (GtkRange *range)
3910 GtkRangePrivate *priv = range->priv;
3913 if (!priv->recalc_marks)
3916 priv->recalc_marks = FALSE;
3918 for (i = 0; i < priv->n_marks; i++)
3920 priv->need_recalc = TRUE;
3921 gtk_range_calc_layout (range, priv->marks[i]);
3922 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3923 priv->mark_pos[i] = priv->slider.x + priv->slider.width / 2;
3925 priv->mark_pos[i] = priv->slider.y + priv->slider.height / 2;
3928 priv->need_recalc = TRUE;
3932 gtk_range_real_change_value (GtkRange *range,
3933 GtkScrollType scroll,
3936 GtkRangePrivate *priv = range->priv;
3938 /* potentially adjust the bounds _before_ we clamp */
3939 g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
3941 if (priv->restrict_to_fill_level)
3942 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
3945 value = CLAMP (value, gtk_adjustment_get_lower (priv->adjustment),
3946 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3948 if (priv->round_digits >= 0)
3953 i = priv->round_digits;
3958 value = floor ((value * power) + 0.5) / power;
3961 if (gtk_adjustment_get_value (priv->adjustment) != value)
3963 priv->need_recalc = TRUE;
3965 gtk_widget_queue_draw (GTK_WIDGET (range));
3967 gtk_adjustment_set_value (priv->adjustment, value);
3972 struct _GtkRangeStepTimer
3979 second_timeout (gpointer data)
3981 GtkRange *range = GTK_RANGE (data);
3982 GtkRangePrivate *priv = range->priv;
3984 gtk_range_scroll (range, priv->timer->step);
3990 initial_timeout (gpointer data)
3992 GtkRange *range = GTK_RANGE (data);
3993 GtkRangePrivate *priv = range->priv;
3994 GtkSettings *settings;
3997 settings = gtk_widget_get_settings (GTK_WIDGET (data));
3998 g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
4000 priv->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
4008 gtk_range_add_step_timer (GtkRange *range,
4011 GtkRangePrivate *priv = range->priv;
4012 GtkSettings *settings;
4015 g_return_if_fail (priv->timer == NULL);
4016 g_return_if_fail (step != GTK_SCROLL_NONE);
4018 settings = gtk_widget_get_settings (GTK_WIDGET (range));
4019 g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
4021 priv->timer = g_new (GtkRangeStepTimer, 1);
4023 priv->timer->timeout_id = gdk_threads_add_timeout (timeout,
4026 priv->timer->step = step;
4028 gtk_range_scroll (range, priv->timer->step);
4032 gtk_range_remove_step_timer (GtkRange *range)
4034 GtkRangePrivate *priv = range->priv;
4038 if (priv->timer->timeout_id != 0)
4039 g_source_remove (priv->timer->timeout_id);
4041 g_free (priv->timer);
4048 _gtk_range_set_stop_values (GtkRange *range,
4052 GtkRangePrivate *priv = range->priv;
4055 g_free (priv->marks);
4056 priv->marks = g_new (gdouble, n_values);
4058 g_free (priv->mark_pos);
4059 priv->mark_pos = g_new (gint, n_values);
4061 priv->n_marks = n_values;
4063 for (i = 0; i < n_values; i++)
4064 priv->marks[i] = values[i];
4066 priv->recalc_marks = TRUE;
4070 _gtk_range_get_stop_positions (GtkRange *range,
4073 GtkRangePrivate *priv = range->priv;
4075 gtk_range_calc_marks (range);
4078 *values = g_memdup (priv->mark_pos, priv->n_marks * sizeof (gint));
4080 return priv->n_marks;
4084 * gtk_range_set_round_digits:
4085 * @range: a #GtkRange
4086 * @round_digits: the precision in digits, or -1
4088 * Sets the number of digits to round the value to when
4089 * it changes. See #GtkRange::change-value.
4094 gtk_range_set_round_digits (GtkRange *range,
4097 g_return_if_fail (GTK_IS_RANGE (range));
4098 g_return_if_fail (round_digits >= -1);
4100 range->priv->round_digits = round_digits;
4102 g_object_notify (G_OBJECT (range), "round-digits");
4106 * gtk_range_get_round_digits:
4107 * @range: a #GtkRange
4109 * Gets the number of digits to round the value to when
4110 * it changes. See #GtkRange::change-value.
4112 * Return value: the number of digits to round to
4117 gtk_range_get_round_digits (GtkRange *range)
4119 g_return_val_if_fail (GTK_IS_RANGE (range), -1);
4121 return range->priv->round_digits;
4125 _gtk_range_set_steppers (GtkRange *range,
4131 range->priv->has_stepper_a = has_a;
4132 range->priv->has_stepper_b = has_b;
4133 range->priv->has_stepper_c = has_c;
4134 range->priv->has_stepper_d = has_d;