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/.
34 #include "gtkmarshalers.h"
35 #include "gtkorientableprivate.h"
38 #include "gtkscrollbar.h"
39 #include "gtkwindow.h"
40 #include "gtkprivate.h"
43 #include "gtktypebuiltins.h"
44 #include "a11y/gtkrangeaccessible.h"
48 * @Short_description: Base class for widgets which visualize an adjustment
51 * #GtkRange is the common base class for widgets which visualize an
52 * adjustment, e.g #GtkScale or #GtkScrollbar.
54 * Apart from signals for monitoring the parameters of the adjustment,
55 * #GtkRange provides properties and methods for influencing the sensitivity
56 * of the "steppers". It also provides properties and methods for setting a
57 * "fill level" on range widgets. See gtk_range_set_fill_level().
61 #define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
62 #define UPDATE_DELAY 300 /* Delay for queued update */
64 typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
74 MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
77 struct _GtkRangePrivate
79 MouseLocation mouse_location;
80 /* last mouse coords we got, or -1 if mouse is outside the range */
83 MouseLocation grab_location; /* "grabbed" mouse location, OUTSIDE for no grab */
85 GtkRangeStepTimer *timer;
87 GtkAdjustment *adjustment;
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 GtkOrientation orientation;
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 recalc_marks : 1;
133 guint slider_size_fixed : 1;
134 guint trough_click_forward : 1; /* trough click was on the forward side of slider */
136 /* Stepper sensitivity */
137 guint lower_sensitive : 1;
138 guint upper_sensitive : 1;
141 guint show_fill_level : 1;
142 guint restrict_to_fill_level : 1;
144 guint grab_button : 8; /* 0 if none */
153 PROP_LOWER_STEPPER_SENSITIVITY,
154 PROP_UPPER_STEPPER_SENSITIVITY,
155 PROP_SHOW_FILL_LEVEL,
156 PROP_RESTRICT_TO_FILL_LEVEL,
176 static void gtk_range_set_property (GObject *object,
180 static void gtk_range_get_property (GObject *object,
184 static void gtk_range_destroy (GtkWidget *widget);
185 static void gtk_range_get_preferred_width
189 static void gtk_range_get_preferred_height
193 static void gtk_range_size_allocate (GtkWidget *widget,
194 GtkAllocation *allocation);
195 static void gtk_range_hierarchy_changed (GtkWidget *widget,
196 GtkWidget *previous_toplevel);
197 static void gtk_range_realize (GtkWidget *widget);
198 static void gtk_range_unrealize (GtkWidget *widget);
199 static void gtk_range_map (GtkWidget *widget);
200 static void gtk_range_unmap (GtkWidget *widget);
201 static gboolean gtk_range_draw (GtkWidget *widget,
203 static gboolean gtk_range_button_press (GtkWidget *widget,
204 GdkEventButton *event);
205 static gboolean gtk_range_button_release (GtkWidget *widget,
206 GdkEventButton *event);
207 static gboolean gtk_range_motion_notify (GtkWidget *widget,
208 GdkEventMotion *event);
209 static gboolean gtk_range_enter_notify (GtkWidget *widget,
210 GdkEventCrossing *event);
211 static gboolean gtk_range_leave_notify (GtkWidget *widget,
212 GdkEventCrossing *event);
213 static gboolean gtk_range_grab_broken (GtkWidget *widget,
214 GdkEventGrabBroken *event);
215 static void gtk_range_grab_notify (GtkWidget *widget,
216 gboolean was_grabbed);
217 static void gtk_range_state_flags_changed (GtkWidget *widget,
218 GtkStateFlags previous_state);
219 static gboolean gtk_range_scroll_event (GtkWidget *widget,
220 GdkEventScroll *event);
221 static void gtk_range_style_updated (GtkWidget *widget);
222 static void update_slider_position (GtkRange *range,
225 static void stop_scrolling (GtkRange *range);
226 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
227 GtkAllocation *allocation);
231 static void gtk_range_move_slider (GtkRange *range,
232 GtkScrollType scroll);
235 static gboolean gtk_range_scroll (GtkRange *range,
236 GtkScrollType scroll);
237 static gboolean gtk_range_update_mouse_location (GtkRange *range);
238 static void gtk_range_calc_layout (GtkRange *range,
239 gdouble adjustment_value);
240 static void gtk_range_calc_marks (GtkRange *range);
241 static void gtk_range_get_props (GtkRange *range,
246 gint *stepper_spacing,
247 gboolean *trough_under_steppers,
248 gint *arrow_displacement_x,
249 gint *arrow_displacement_y);
250 static void gtk_range_calc_request (GtkRange *range,
255 gint stepper_spacing,
256 GdkRectangle *range_rect,
259 gboolean *has_steppers_ab,
260 gboolean *has_steppers_cd,
261 gint *slider_length_p);
262 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
264 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
266 static void gtk_range_add_step_timer (GtkRange *range,
268 static void gtk_range_remove_step_timer (GtkRange *range);
269 static GdkRectangle* get_area (GtkRange *range,
270 MouseLocation location);
271 static gboolean gtk_range_real_change_value (GtkRange *range,
272 GtkScrollType scroll,
274 static gboolean gtk_range_key_press (GtkWidget *range,
278 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
279 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
282 static guint signals[LAST_SIGNAL];
286 gtk_range_class_init (GtkRangeClass *class)
288 GObjectClass *gobject_class;
289 GtkWidgetClass *widget_class;
291 gobject_class = G_OBJECT_CLASS (class);
292 widget_class = (GtkWidgetClass*) class;
294 gobject_class->set_property = gtk_range_set_property;
295 gobject_class->get_property = gtk_range_get_property;
297 widget_class->destroy = gtk_range_destroy;
298 widget_class->get_preferred_width = gtk_range_get_preferred_width;
299 widget_class->get_preferred_height = gtk_range_get_preferred_height;
300 widget_class->size_allocate = gtk_range_size_allocate;
301 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
302 widget_class->realize = gtk_range_realize;
303 widget_class->unrealize = gtk_range_unrealize;
304 widget_class->map = gtk_range_map;
305 widget_class->unmap = gtk_range_unmap;
306 widget_class->draw = gtk_range_draw;
307 widget_class->button_press_event = gtk_range_button_press;
308 widget_class->button_release_event = gtk_range_button_release;
309 widget_class->motion_notify_event = gtk_range_motion_notify;
310 widget_class->scroll_event = gtk_range_scroll_event;
311 widget_class->enter_notify_event = gtk_range_enter_notify;
312 widget_class->leave_notify_event = gtk_range_leave_notify;
313 widget_class->grab_broken_event = gtk_range_grab_broken;
314 widget_class->grab_notify = gtk_range_grab_notify;
315 widget_class->state_flags_changed = gtk_range_state_flags_changed;
316 widget_class->style_updated = gtk_range_style_updated;
317 widget_class->key_press_event = gtk_range_key_press;
319 class->move_slider = gtk_range_move_slider;
320 class->change_value = gtk_range_real_change_value;
322 class->slider_detail = "slider";
323 class->stepper_detail = "stepper";
326 * GtkRange::value-changed:
327 * @range: the #GtkRange that received the signal
329 * Emitted when the range value changes.
331 signals[VALUE_CHANGED] =
332 g_signal_new (I_("value-changed"),
333 G_TYPE_FROM_CLASS (gobject_class),
335 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
337 _gtk_marshal_VOID__VOID,
341 * GtkRange::adjust-bounds:
342 * @range: the #GtkRange that received the signal
343 * @value: the value before we clamp
345 * Emitted before clamping a value, to give the application a
346 * chance to adjust the bounds.
348 signals[ADJUST_BOUNDS] =
349 g_signal_new (I_("adjust-bounds"),
350 G_TYPE_FROM_CLASS (gobject_class),
352 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
354 _gtk_marshal_VOID__DOUBLE,
359 * GtkRange::move-slider:
360 * @range: the #GtkRange that received the signal
361 * @step: how to move the slider
363 * Virtual function that moves the slider. Used for keybindings.
365 signals[MOVE_SLIDER] =
366 g_signal_new (I_("move-slider"),
367 G_TYPE_FROM_CLASS (gobject_class),
368 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
369 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
371 _gtk_marshal_VOID__ENUM,
373 GTK_TYPE_SCROLL_TYPE);
376 * GtkRange::change-value:
377 * @range: the #GtkRange that received the signal
378 * @scroll: the type of scroll action that was performed
379 * @value: the new value resulting from the scroll action
380 * @returns: %TRUE to prevent other handlers from being invoked for the
381 * signal, %FALSE to propagate the signal further
383 * The #GtkRange::change-value signal is emitted when a scroll action is
384 * performed on a range. It allows an application to determine the
385 * type of scroll event that occurred and the resultant new value.
386 * The application can handle the event itself and return %TRUE to
387 * prevent further processing. Or, by returning %FALSE, it can pass
388 * the event to other handlers until the default GTK+ handler is
391 * The value parameter is unrounded. An application that overrides
392 * the GtkRange::change-value signal is responsible for clamping the
393 * value to the desired number of decimal digits; the default GTK+
394 * handler clamps the value based on #GtkRange:round-digits.
396 * It is not possible to use delayed update policies in an overridden
397 * #GtkRange::change-value handler.
401 signals[CHANGE_VALUE] =
402 g_signal_new (I_("change-value"),
403 G_TYPE_FROM_CLASS (gobject_class),
405 G_STRUCT_OFFSET (GtkRangeClass, change_value),
406 _gtk_boolean_handled_accumulator, NULL,
407 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
409 GTK_TYPE_SCROLL_TYPE,
412 g_object_class_override_property (gobject_class,
416 g_object_class_install_property (gobject_class,
418 g_param_spec_object ("adjustment",
420 P_("The GtkAdjustment that contains the current value of this range object"),
422 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
424 g_object_class_install_property (gobject_class,
426 g_param_spec_boolean ("inverted",
428 P_("Invert direction slider moves to increase range value"),
430 GTK_PARAM_READWRITE));
432 g_object_class_install_property (gobject_class,
433 PROP_LOWER_STEPPER_SENSITIVITY,
434 g_param_spec_enum ("lower-stepper-sensitivity",
435 P_("Lower stepper sensitivity"),
436 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
437 GTK_TYPE_SENSITIVITY_TYPE,
438 GTK_SENSITIVITY_AUTO,
439 GTK_PARAM_READWRITE));
441 g_object_class_install_property (gobject_class,
442 PROP_UPPER_STEPPER_SENSITIVITY,
443 g_param_spec_enum ("upper-stepper-sensitivity",
444 P_("Upper stepper sensitivity"),
445 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
446 GTK_TYPE_SENSITIVITY_TYPE,
447 GTK_SENSITIVITY_AUTO,
448 GTK_PARAM_READWRITE));
451 * GtkRange:show-fill-level:
453 * The show-fill-level property controls whether fill level indicator
454 * graphics are displayed on the trough. See
455 * gtk_range_set_show_fill_level().
459 g_object_class_install_property (gobject_class,
460 PROP_SHOW_FILL_LEVEL,
461 g_param_spec_boolean ("show-fill-level",
462 P_("Show Fill Level"),
463 P_("Whether to display a fill level indicator graphics on trough."),
465 GTK_PARAM_READWRITE));
468 * GtkRange:restrict-to-fill-level:
470 * The restrict-to-fill-level property controls whether slider
471 * movement is restricted to an upper boundary set by the
472 * fill level. See gtk_range_set_restrict_to_fill_level().
476 g_object_class_install_property (gobject_class,
477 PROP_RESTRICT_TO_FILL_LEVEL,
478 g_param_spec_boolean ("restrict-to-fill-level",
479 P_("Restrict to Fill Level"),
480 P_("Whether to restrict the upper boundary to the fill level."),
482 GTK_PARAM_READWRITE));
485 * GtkRange:fill-level:
487 * The fill level (e.g. prebuffering of a network stream).
488 * See gtk_range_set_fill_level().
492 g_object_class_install_property (gobject_class,
494 g_param_spec_double ("fill-level",
496 P_("The fill level."),
500 GTK_PARAM_READWRITE));
503 * GtkRange:round-digits:
505 * The number of digits to round the value to when
506 * it changes, or -1. See #GtkRange::change-value.
510 g_object_class_install_property (gobject_class,
512 g_param_spec_int ("round-digits",
514 P_("The number of digits to round the value to."),
518 GTK_PARAM_READWRITE));
520 gtk_widget_class_install_style_property (widget_class,
521 g_param_spec_int ("slider-width",
523 P_("Width of scrollbar or scale thumb"),
527 GTK_PARAM_READABLE));
528 gtk_widget_class_install_style_property (widget_class,
529 g_param_spec_int ("trough-border",
531 P_("Spacing between thumb/steppers and outer trough bevel"),
535 GTK_PARAM_READABLE));
536 gtk_widget_class_install_style_property (widget_class,
537 g_param_spec_int ("stepper-size",
539 P_("Length of step buttons at ends"),
543 GTK_PARAM_READABLE));
545 * GtkRange:stepper-spacing:
547 * The spacing between the stepper buttons and thumb. Note that
548 * stepper-spacing won't have any effect if there are no steppers.
550 gtk_widget_class_install_style_property (widget_class,
551 g_param_spec_int ("stepper-spacing",
552 P_("Stepper Spacing"),
553 P_("Spacing between step buttons and thumb"),
557 GTK_PARAM_READABLE));
558 gtk_widget_class_install_style_property (widget_class,
559 g_param_spec_int ("arrow-displacement-x",
560 P_("Arrow X Displacement"),
561 P_("How far in the x direction to move the arrow when the button is depressed"),
565 GTK_PARAM_READABLE));
566 gtk_widget_class_install_style_property (widget_class,
567 g_param_spec_int ("arrow-displacement-y",
568 P_("Arrow Y Displacement"),
569 P_("How far in the y direction to move the arrow when the button is depressed"),
573 GTK_PARAM_READABLE));
576 * GtkRange:trough-under-steppers:
578 * Whether to draw the trough across the full length of the range or
579 * to exclude the steppers and their spacing.
583 gtk_widget_class_install_style_property (widget_class,
584 g_param_spec_boolean ("trough-under-steppers",
585 P_("Trough Under Steppers"),
586 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
588 GTK_PARAM_READABLE));
591 * GtkRange:arrow-scaling:
593 * The arrow size proportion relative to the scroll button size.
597 gtk_widget_class_install_style_property (widget_class,
598 g_param_spec_float ("arrow-scaling",
600 P_("Arrow scaling with regard to scroll button size"),
602 GTK_PARAM_READABLE));
604 g_type_class_add_private (class, sizeof (GtkRangePrivate));
606 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_RANGE_ACCESSIBLE);
610 gtk_range_set_property (GObject *object,
615 GtkRange *range = GTK_RANGE (object);
616 GtkRangePrivate *priv = range->priv;
620 case PROP_ORIENTATION:
621 priv->orientation = g_value_get_enum (value);
623 priv->slider_detail_quark = 0;
624 priv->stepper_detail_quark[0] = 0;
625 priv->stepper_detail_quark[1] = 0;
626 priv->stepper_detail_quark[2] = 0;
627 priv->stepper_detail_quark[3] = 0;
629 _gtk_orientable_set_style_classes (GTK_ORIENTABLE (range));
630 gtk_widget_queue_resize (GTK_WIDGET (range));
632 case PROP_ADJUSTMENT:
633 gtk_range_set_adjustment (range, g_value_get_object (value));
636 gtk_range_set_inverted (range, g_value_get_boolean (value));
638 case PROP_LOWER_STEPPER_SENSITIVITY:
639 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
641 case PROP_UPPER_STEPPER_SENSITIVITY:
642 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
644 case PROP_SHOW_FILL_LEVEL:
645 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
647 case PROP_RESTRICT_TO_FILL_LEVEL:
648 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
650 case PROP_FILL_LEVEL:
651 gtk_range_set_fill_level (range, g_value_get_double (value));
653 case PROP_ROUND_DIGITS:
654 gtk_range_set_round_digits (range, g_value_get_int (value));
657 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
663 gtk_range_get_property (GObject *object,
668 GtkRange *range = GTK_RANGE (object);
669 GtkRangePrivate *priv = range->priv;
673 case PROP_ORIENTATION:
674 g_value_set_enum (value, priv->orientation);
676 case PROP_ADJUSTMENT:
677 g_value_set_object (value, priv->adjustment);
680 g_value_set_boolean (value, priv->inverted);
682 case PROP_LOWER_STEPPER_SENSITIVITY:
683 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
685 case PROP_UPPER_STEPPER_SENSITIVITY:
686 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
688 case PROP_SHOW_FILL_LEVEL:
689 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
691 case PROP_RESTRICT_TO_FILL_LEVEL:
692 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
694 case PROP_FILL_LEVEL:
695 g_value_set_double (value, gtk_range_get_fill_level (range));
697 case PROP_ROUND_DIGITS:
698 g_value_set_int (value, gtk_range_get_round_digits (range));
701 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
707 gtk_range_init (GtkRange *range)
709 GtkRangePrivate *priv;
711 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
716 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
718 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
719 priv->adjustment = NULL;
720 priv->inverted = FALSE;
721 priv->flippable = FALSE;
722 priv->min_slider_size = 1;
723 priv->has_stepper_a = FALSE;
724 priv->has_stepper_b = FALSE;
725 priv->has_stepper_c = FALSE;
726 priv->has_stepper_d = FALSE;
727 priv->need_recalc = TRUE;
728 priv->round_digits = -1;
729 priv->mouse_location = MOUSE_OUTSIDE;
732 priv->grab_location = MOUSE_OUTSIDE;
733 priv->grab_button = 0;
734 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
735 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
736 priv->lower_sensitive = TRUE;
737 priv->upper_sensitive = TRUE;
738 priv->show_fill_level = FALSE;
739 priv->restrict_to_fill_level = TRUE;
740 priv->fill_level = G_MAXDOUBLE;
745 * gtk_range_get_adjustment:
746 * @range: a #GtkRange
748 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
749 * See gtk_range_set_adjustment() for details.
750 * The return value does not have a reference added, so should not
753 * Return value: (transfer none): a #GtkAdjustment
756 gtk_range_get_adjustment (GtkRange *range)
758 GtkRangePrivate *priv;
760 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
764 if (!priv->adjustment)
765 gtk_range_set_adjustment (range, NULL);
767 return priv->adjustment;
771 * gtk_range_set_adjustment:
772 * @range: a #GtkRange
773 * @adjustment: a #GtkAdjustment
775 * Sets the adjustment to be used as the "model" object for this range
776 * widget. The adjustment indicates the current range value, the
777 * minimum and maximum range values, the step/page increments used
778 * for keybindings and scrolling, and the page size. The page size
779 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
780 * indicates the size of the visible area of the widget being scrolled.
781 * The page size affects the size of the scrollbar slider.
784 gtk_range_set_adjustment (GtkRange *range,
785 GtkAdjustment *adjustment)
787 GtkRangePrivate *priv;
789 g_return_if_fail (GTK_IS_RANGE (range));
794 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
796 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
798 if (priv->adjustment != adjustment)
800 if (priv->adjustment)
802 g_signal_handlers_disconnect_by_func (priv->adjustment,
803 gtk_range_adjustment_changed,
805 g_signal_handlers_disconnect_by_func (priv->adjustment,
806 gtk_range_adjustment_value_changed,
808 g_object_unref (priv->adjustment);
811 priv->adjustment = adjustment;
812 g_object_ref_sink (adjustment);
814 g_signal_connect (adjustment, "changed",
815 G_CALLBACK (gtk_range_adjustment_changed),
817 g_signal_connect (adjustment, "value-changed",
818 G_CALLBACK (gtk_range_adjustment_value_changed),
821 gtk_range_adjustment_changed (adjustment, range);
822 g_object_notify (G_OBJECT (range), "adjustment");
827 * gtk_range_set_inverted:
828 * @range: a #GtkRange
829 * @setting: %TRUE to invert the range
831 * Ranges normally move from lower to higher values as the
832 * slider moves from top to bottom or left to right. Inverted
833 * ranges have higher values at the top or on the right rather than
834 * on the bottom or left.
837 gtk_range_set_inverted (GtkRange *range,
840 GtkRangePrivate *priv;
842 g_return_if_fail (GTK_IS_RANGE (range));
846 setting = setting != FALSE;
848 if (setting != priv->inverted)
850 priv->inverted = setting;
851 g_object_notify (G_OBJECT (range), "inverted");
852 gtk_widget_queue_resize (GTK_WIDGET (range));
857 * gtk_range_get_inverted:
858 * @range: a #GtkRange
860 * Gets the value set by gtk_range_set_inverted().
862 * Return value: %TRUE if the range is inverted
865 gtk_range_get_inverted (GtkRange *range)
867 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
869 return range->priv->inverted;
873 * gtk_range_set_flippable:
874 * @range: a #GtkRange
875 * @flippable: %TRUE to make the range flippable
877 * If a range is flippable, it will switch its direction if it is
878 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
880 * See gtk_widget_get_direction().
885 gtk_range_set_flippable (GtkRange *range,
888 GtkRangePrivate *priv;
890 g_return_if_fail (GTK_IS_RANGE (range));
894 flippable = flippable ? TRUE : FALSE;
896 if (flippable != priv->flippable)
898 priv->flippable = flippable;
900 gtk_widget_queue_draw (GTK_WIDGET (range));
905 * gtk_range_get_flippable:
906 * @range: a #GtkRange
908 * Gets the value set by gtk_range_set_flippable().
910 * Return value: %TRUE if the range is flippable
915 gtk_range_get_flippable (GtkRange *range)
917 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
919 return range->priv->flippable;
923 * gtk_range_set_slider_size_fixed:
924 * @range: a #GtkRange
925 * @size_fixed: %TRUE to make the slider size constant
927 * Sets whether the range's slider has a fixed size, or a size that
928 * depends on its adjustment's page size.
930 * This function is useful mainly for #GtkRange subclasses.
935 gtk_range_set_slider_size_fixed (GtkRange *range,
938 GtkRangePrivate *priv;
940 g_return_if_fail (GTK_IS_RANGE (range));
944 if (size_fixed != priv->slider_size_fixed)
946 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
948 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
950 priv->need_recalc = TRUE;
951 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
952 gtk_widget_queue_draw (GTK_WIDGET (range));
958 * gtk_range_get_slider_size_fixed:
959 * @range: a #GtkRange
961 * This function is useful mainly for #GtkRange subclasses.
963 * See gtk_range_set_slider_size_fixed().
965 * Return value: whether the range's slider has a fixed size.
970 gtk_range_get_slider_size_fixed (GtkRange *range)
972 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
974 return range->priv->slider_size_fixed;
978 * gtk_range_set_min_slider_size:
979 * @range: a #GtkRange
980 * @min_size: The slider's minimum size
982 * Sets the minimum size of the range's slider.
984 * This function is useful mainly for #GtkRange subclasses.
989 gtk_range_set_min_slider_size (GtkRange *range,
992 GtkRangePrivate *priv;
994 g_return_if_fail (GTK_IS_RANGE (range));
995 g_return_if_fail (min_size > 0);
999 if (min_size != priv->min_slider_size)
1001 priv->min_slider_size = min_size;
1003 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1005 priv->need_recalc = TRUE;
1006 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1007 gtk_widget_queue_draw (GTK_WIDGET (range));
1013 * gtk_range_get_min_slider_size:
1014 * @range: a #GtkRange
1016 * This function is useful mainly for #GtkRange subclasses.
1018 * See gtk_range_set_min_slider_size().
1020 * Return value: The minimum size of the range's slider.
1025 gtk_range_get_min_slider_size (GtkRange *range)
1027 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1029 return range->priv->min_slider_size;
1033 * gtk_range_get_range_rect:
1034 * @range: a #GtkRange
1035 * @range_rect: (out): return location for the range rectangle
1037 * This function returns the area that contains the range's trough
1038 * and its steppers, in widget->window coordinates.
1040 * This function is useful mainly for #GtkRange subclasses.
1045 gtk_range_get_range_rect (GtkRange *range,
1046 GdkRectangle *range_rect)
1048 GtkRangePrivate *priv;
1050 g_return_if_fail (GTK_IS_RANGE (range));
1051 g_return_if_fail (range_rect != NULL);
1055 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1057 *range_rect = priv->range_rect;
1061 * gtk_range_get_slider_range:
1062 * @range: a #GtkRange
1063 * @slider_start: (out) (allow-none): return location for the slider's
1065 * @slider_end: (out) (allow-none): return location for the slider's
1068 * This function returns sliders range along the long dimension,
1069 * in widget->window coordinates.
1071 * This function is useful mainly for #GtkRange subclasses.
1076 gtk_range_get_slider_range (GtkRange *range,
1080 GtkRangePrivate *priv;
1082 g_return_if_fail (GTK_IS_RANGE (range));
1086 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1089 *slider_start = priv->slider_start;
1092 *slider_end = priv->slider_end;
1096 * gtk_range_set_lower_stepper_sensitivity:
1097 * @range: a #GtkRange
1098 * @sensitivity: the lower stepper's sensitivity policy.
1100 * Sets the sensitivity policy for the stepper that points to the
1101 * 'lower' end of the GtkRange's adjustment.
1106 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1107 GtkSensitivityType sensitivity)
1109 GtkRangePrivate *priv;
1111 g_return_if_fail (GTK_IS_RANGE (range));
1115 if (priv->lower_sensitivity != sensitivity)
1117 priv->lower_sensitivity = sensitivity;
1119 priv->need_recalc = TRUE;
1120 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1121 gtk_widget_queue_draw (GTK_WIDGET (range));
1123 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1128 * gtk_range_get_lower_stepper_sensitivity:
1129 * @range: a #GtkRange
1131 * Gets the sensitivity policy for the stepper that points to the
1132 * 'lower' end of the GtkRange's adjustment.
1134 * Return value: The lower stepper's sensitivity policy.
1139 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1141 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1143 return range->priv->lower_sensitivity;
1147 * gtk_range_set_upper_stepper_sensitivity:
1148 * @range: a #GtkRange
1149 * @sensitivity: the upper stepper's sensitivity policy.
1151 * Sets the sensitivity policy for the stepper that points to the
1152 * 'upper' end of the GtkRange's adjustment.
1157 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1158 GtkSensitivityType sensitivity)
1160 GtkRangePrivate *priv;
1162 g_return_if_fail (GTK_IS_RANGE (range));
1166 if (priv->upper_sensitivity != sensitivity)
1168 priv->upper_sensitivity = sensitivity;
1170 priv->need_recalc = TRUE;
1171 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1172 gtk_widget_queue_draw (GTK_WIDGET (range));
1174 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1179 * gtk_range_get_upper_stepper_sensitivity:
1180 * @range: a #GtkRange
1182 * Gets the sensitivity policy for the stepper that points to the
1183 * 'upper' end of the GtkRange's adjustment.
1185 * Return value: The upper stepper's sensitivity policy.
1190 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1192 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1194 return range->priv->upper_sensitivity;
1198 * gtk_range_set_increments:
1199 * @range: a #GtkRange
1203 * Sets the step and page sizes for the range.
1204 * The step size is used when the user clicks the #GtkScrollbar
1205 * arrows or moves #GtkScale via arrow keys. The page size
1206 * is used for example when moving via Page Up or Page Down keys.
1209 gtk_range_set_increments (GtkRange *range,
1213 GtkAdjustment *adjustment;
1215 g_return_if_fail (GTK_IS_RANGE (range));
1217 adjustment = range->priv->adjustment;
1219 gtk_adjustment_configure (adjustment,
1220 gtk_adjustment_get_value (adjustment),
1221 gtk_adjustment_get_lower (adjustment),
1222 gtk_adjustment_get_upper (adjustment),
1225 gtk_adjustment_get_page_size (adjustment));
1229 * gtk_range_set_range:
1230 * @range: a #GtkRange
1231 * @min: minimum range value
1232 * @max: maximum range value
1234 * Sets the allowable values in the #GtkRange, and clamps the range
1235 * value to be between @min and @max. (If the range has a non-zero
1236 * page size, it is clamped between @min and @max - page-size.)
1239 gtk_range_set_range (GtkRange *range,
1243 GtkRangePrivate *priv;
1244 GtkAdjustment *adjustment;
1247 g_return_if_fail (GTK_IS_RANGE (range));
1248 g_return_if_fail (min <= max);
1251 adjustment = priv->adjustment;
1253 value = gtk_adjustment_get_value (adjustment);
1254 if (priv->restrict_to_fill_level)
1255 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1258 gtk_adjustment_configure (adjustment,
1262 gtk_adjustment_get_step_increment (adjustment),
1263 gtk_adjustment_get_page_increment (adjustment),
1264 gtk_adjustment_get_page_size (adjustment));
1268 * gtk_range_set_value:
1269 * @range: a #GtkRange
1270 * @value: new value of the range
1272 * Sets the current value of the range; if the value is outside the
1273 * minimum or maximum range values, it will be clamped to fit inside
1274 * them. The range emits the #GtkRange::value-changed signal if the
1278 gtk_range_set_value (GtkRange *range,
1281 GtkRangePrivate *priv;
1283 g_return_if_fail (GTK_IS_RANGE (range));
1287 if (priv->restrict_to_fill_level)
1288 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1291 gtk_adjustment_set_value (priv->adjustment, value);
1295 * gtk_range_get_value:
1296 * @range: a #GtkRange
1298 * Gets the current value of the range.
1300 * Return value: current value of the range.
1303 gtk_range_get_value (GtkRange *range)
1305 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1307 return gtk_adjustment_get_value (range->priv->adjustment);
1311 * gtk_range_set_show_fill_level:
1312 * @range: A #GtkRange
1313 * @show_fill_level: Whether a fill level indicator graphics is shown.
1315 * Sets whether a graphical fill level is show on the trough. See
1316 * gtk_range_set_fill_level() for a general description of the fill
1322 gtk_range_set_show_fill_level (GtkRange *range,
1323 gboolean show_fill_level)
1325 GtkRangePrivate *priv;
1327 g_return_if_fail (GTK_IS_RANGE (range));
1331 show_fill_level = show_fill_level ? TRUE : FALSE;
1333 if (show_fill_level != priv->show_fill_level)
1335 priv->show_fill_level = show_fill_level;
1336 g_object_notify (G_OBJECT (range), "show-fill-level");
1337 gtk_widget_queue_draw (GTK_WIDGET (range));
1342 * gtk_range_get_show_fill_level:
1343 * @range: A #GtkRange
1345 * Gets whether the range displays the fill level graphically.
1347 * Return value: %TRUE if @range shows the fill level.
1352 gtk_range_get_show_fill_level (GtkRange *range)
1354 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1356 return range->priv->show_fill_level;
1360 * gtk_range_set_restrict_to_fill_level:
1361 * @range: A #GtkRange
1362 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1364 * Sets whether the slider is restricted to the fill level. See
1365 * gtk_range_set_fill_level() for a general description of the fill
1371 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1372 gboolean restrict_to_fill_level)
1374 GtkRangePrivate *priv;
1376 g_return_if_fail (GTK_IS_RANGE (range));
1380 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1382 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1384 priv->restrict_to_fill_level = restrict_to_fill_level;
1385 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1387 gtk_range_set_value (range, gtk_range_get_value (range));
1392 * gtk_range_get_restrict_to_fill_level:
1393 * @range: A #GtkRange
1395 * Gets whether the range is restricted to the fill level.
1397 * Return value: %TRUE if @range is restricted to the fill level.
1402 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1404 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1406 return range->priv->restrict_to_fill_level;
1410 * gtk_range_set_fill_level:
1411 * @range: a #GtkRange
1412 * @fill_level: the new position of the fill level indicator
1414 * Set the new position of the fill level indicator.
1416 * The "fill level" is probably best described by its most prominent
1417 * use case, which is an indicator for the amount of pre-buffering in
1418 * a streaming media player. In that use case, the value of the range
1419 * would indicate the current play position, and the fill level would
1420 * be the position up to which the file/stream has been downloaded.
1422 * This amount of prebuffering can be displayed on the range's trough
1423 * and is themeable separately from the trough. To enable fill level
1424 * display, use gtk_range_set_show_fill_level(). The range defaults
1425 * to not showing the fill level.
1427 * Additionally, it's possible to restrict the range's slider position
1428 * to values which are smaller than the fill level. This is controller
1429 * by gtk_range_set_restrict_to_fill_level() and is by default
1435 gtk_range_set_fill_level (GtkRange *range,
1438 GtkRangePrivate *priv;
1440 g_return_if_fail (GTK_IS_RANGE (range));
1444 if (fill_level != priv->fill_level)
1446 priv->fill_level = fill_level;
1447 g_object_notify (G_OBJECT (range), "fill-level");
1449 if (priv->show_fill_level)
1450 gtk_widget_queue_draw (GTK_WIDGET (range));
1452 if (priv->restrict_to_fill_level)
1453 gtk_range_set_value (range, gtk_range_get_value (range));
1458 * gtk_range_get_fill_level:
1459 * @range: A #GtkRange
1461 * Gets the current position of the fill level indicator.
1463 * Return value: The current fill level
1468 gtk_range_get_fill_level (GtkRange *range)
1470 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1472 return range->priv->fill_level;
1476 should_invert (GtkRange *range)
1478 GtkRangePrivate *priv = range->priv;
1480 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1482 (priv->inverted && !priv->flippable) ||
1483 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1484 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1486 return priv->inverted;
1490 gtk_range_destroy (GtkWidget *widget)
1492 GtkRange *range = GTK_RANGE (widget);
1493 GtkRangePrivate *priv = range->priv;
1495 gtk_range_remove_step_timer (range);
1497 if (priv->repaint_id)
1498 g_source_remove (priv->repaint_id);
1499 priv->repaint_id = 0;
1501 if (priv->adjustment)
1503 g_signal_handlers_disconnect_by_func (priv->adjustment,
1504 gtk_range_adjustment_changed,
1506 g_signal_handlers_disconnect_by_func (priv->adjustment,
1507 gtk_range_adjustment_value_changed,
1509 g_object_unref (priv->adjustment);
1510 priv->adjustment = NULL;
1515 g_free (priv->marks);
1517 g_free (priv->mark_pos);
1518 priv->mark_pos = NULL;
1522 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1526 gtk_range_get_preferred_width (GtkWidget *widget,
1531 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1532 GdkRectangle range_rect;
1535 range = GTK_RANGE (widget);
1537 gtk_range_get_props (range,
1538 &slider_width, &stepper_size,
1539 &focus_width, &trough_border,
1540 &stepper_spacing, NULL,
1543 gtk_range_calc_request (range,
1544 slider_width, stepper_size,
1545 focus_width, trough_border, stepper_spacing,
1546 &range_rect, &border, NULL, NULL, NULL, NULL);
1548 *minimum = *natural = range_rect.width + border.left + border.right;
1552 gtk_range_get_preferred_height (GtkWidget *widget,
1557 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1558 GdkRectangle range_rect;
1561 range = GTK_RANGE (widget);
1563 gtk_range_get_props (range,
1564 &slider_width, &stepper_size,
1565 &focus_width, &trough_border,
1566 &stepper_spacing, NULL,
1569 gtk_range_calc_request (range,
1570 slider_width, stepper_size,
1571 focus_width, trough_border, stepper_spacing,
1572 &range_rect, &border, NULL, NULL, NULL, NULL);
1574 *minimum = *natural = range_rect.height + border.top + border.bottom;
1578 modify_allocation_for_window_grip (GtkWidget *widget,
1579 GtkAllocation *allocation)
1581 GtkRange *range = GTK_RANGE (widget);
1582 GtkRangePrivate *priv = range->priv;
1583 GtkWidget *window, *parent;
1584 GdkRectangle grip_rect;
1585 GdkRectangle translated_rect;
1589 window = gtk_widget_get_toplevel (widget);
1590 if (!GTK_IS_WINDOW (window))
1593 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1596 /* Get the area of the window's corner grip */
1597 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1602 /* Translate the stepper's area into window coords.
1603 * This is slightly tricky. We can't just use
1604 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1605 * since that translates wrt to the _current_ allocation
1606 * and will lead to alternating between overlap and nonoverlap
1607 * for successive allocations.
1608 * Therefore, we find the window-widget to whose window allocation
1609 * is relative, and translate from there upwards.
1612 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1615 parent = gtk_widget_get_parent (parent);
1618 if (parent == window)
1619 translated_rect = *allocation;
1622 gtk_widget_translate_coordinates (parent,
1624 allocation->x, allocation->y,
1626 translated_rect.x = x;
1627 translated_rect.y = y;
1628 translated_rect.width = allocation->width;
1629 translated_rect.height = allocation->height;
1632 /* If the stepper button intersects the window resize grip.. */
1633 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, NULL))
1635 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1637 allocation->width -= grip_rect.width;
1638 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1639 allocation->x += grip_rect.width;
1643 allocation->height -= grip_rect.height;
1653 gtk_range_size_allocate (GtkWidget *widget,
1654 GtkAllocation *allocation)
1656 GtkRange *range = GTK_RANGE (widget);
1657 GtkRangePrivate *priv = range->priv;
1659 modify_allocation_for_window_grip (widget, allocation);
1660 gtk_widget_set_allocation (widget, allocation);
1662 priv->recalc_marks = TRUE;
1664 priv->need_recalc = TRUE;
1665 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1667 if (gtk_widget_get_realized (widget))
1668 gdk_window_move_resize (priv->event_window,
1669 allocation->x, allocation->y,
1670 allocation->width, allocation->height);
1674 resize_grip_visible_changed (GObject *object,
1678 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1682 gtk_range_hierarchy_changed (GtkWidget *widget,
1683 GtkWidget *previous_toplevel)
1687 if (previous_toplevel)
1688 g_signal_handlers_disconnect_by_func (previous_toplevel,
1689 G_CALLBACK (resize_grip_visible_changed),
1691 window = gtk_widget_get_toplevel (widget);
1692 if (gtk_widget_is_toplevel (window))
1693 g_signal_connect (window, "notify::resize-grip-visible",
1694 G_CALLBACK (resize_grip_visible_changed), widget);
1698 gtk_range_realize (GtkWidget *widget)
1700 GtkAllocation allocation;
1701 GtkRange *range = GTK_RANGE (widget);
1702 GtkRangePrivate *priv = range->priv;
1704 GdkWindowAttr attributes;
1705 gint attributes_mask;
1707 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1709 gtk_widget_set_realized (widget, TRUE);
1711 window = gtk_widget_get_parent_window (widget);
1712 gtk_widget_set_window (widget, window);
1713 g_object_ref (window);
1715 gtk_widget_get_allocation (widget, &allocation);
1716 if (modify_allocation_for_window_grip (widget, &allocation))
1717 gtk_widget_set_allocation (widget, &allocation);
1719 attributes.window_type = GDK_WINDOW_CHILD;
1720 attributes.x = allocation.x;
1721 attributes.y = allocation.y;
1722 attributes.width = allocation.width;
1723 attributes.height = allocation.height;
1724 attributes.wclass = GDK_INPUT_ONLY;
1725 attributes.event_mask = gtk_widget_get_events (widget);
1726 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1727 GDK_BUTTON_RELEASE_MASK |
1728 GDK_ENTER_NOTIFY_MASK |
1729 GDK_LEAVE_NOTIFY_MASK |
1730 GDK_POINTER_MOTION_MASK |
1731 GDK_POINTER_MOTION_HINT_MASK);
1733 attributes_mask = GDK_WA_X | GDK_WA_Y;
1735 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1736 &attributes, attributes_mask);
1737 gdk_window_set_user_data (priv->event_window, range);
1741 gtk_range_unrealize (GtkWidget *widget)
1743 GtkRange *range = GTK_RANGE (widget);
1744 GtkRangePrivate *priv = range->priv;
1746 gtk_range_remove_step_timer (range);
1748 gdk_window_set_user_data (priv->event_window, NULL);
1749 gdk_window_destroy (priv->event_window);
1750 priv->event_window = NULL;
1752 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1756 gtk_range_map (GtkWidget *widget)
1758 GtkRange *range = GTK_RANGE (widget);
1759 GtkRangePrivate *priv = range->priv;
1761 gdk_window_show (priv->event_window);
1763 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1767 gtk_range_unmap (GtkWidget *widget)
1769 GtkRange *range = GTK_RANGE (widget);
1770 GtkRangePrivate *priv = range->priv;
1772 stop_scrolling (range);
1774 gdk_window_hide (priv->event_window);
1776 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1780 _gtk_range_update_context_for_stepper (GtkRange *range,
1781 GtkStyleContext *context,
1784 GtkRangePrivate *priv = range->priv;
1785 GtkJunctionSides sides = 0;
1786 gboolean vertical, is_rtl;
1788 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1789 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1791 /* Take junction sides from what's been
1792 * previously set to the widget itself
1794 sides = gtk_style_context_get_junction_sides (context);
1797 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1799 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1805 sides |= GTK_JUNCTION_BOTTOM;
1807 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1810 if (priv->has_stepper_a)
1813 sides |= GTK_JUNCTION_TOP;
1815 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1819 sides |= GTK_JUNCTION_BOTTOM;
1821 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1824 if (priv->has_stepper_d)
1827 sides |= GTK_JUNCTION_BOTTOM;
1829 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1833 sides |= GTK_JUNCTION_TOP;
1835 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1839 sides |= GTK_JUNCTION_TOP;
1841 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1845 gtk_style_context_set_junction_sides (context, sides);
1849 draw_stepper (GtkRange *range,
1852 GtkArrowType arrow_type,
1854 gboolean prelighted)
1856 GtkRangePrivate *priv = range->priv;
1857 GtkAllocation allocation;
1858 GtkStateFlags state = 0;
1859 GtkStyleContext *context;
1860 GtkWidget *widget = GTK_WIDGET (range);
1861 gfloat arrow_scaling;
1865 gdouble arrow_size, angle;
1866 gboolean arrow_sensitive;
1871 rect = &priv->stepper_a;
1874 rect = &priv->stepper_b;
1877 rect = &priv->stepper_c;
1880 rect = &priv->stepper_d;
1883 g_assert_not_reached ();
1886 arrow_sensitive = TRUE;
1888 gtk_widget_get_allocation (widget, &allocation);
1890 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1891 arrow_type == GTK_ARROW_RIGHT)) ||
1892 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1893 arrow_type == GTK_ARROW_LEFT)))
1895 arrow_sensitive = priv->upper_sensitive;
1899 arrow_sensitive = priv->lower_sensitive;
1902 if (!gtk_widget_is_sensitive (GTK_WIDGET (range)) || !arrow_sensitive)
1903 state = GTK_STATE_FLAG_INSENSITIVE;
1907 state |= GTK_STATE_FLAG_ACTIVE;
1909 state |= GTK_STATE_FLAG_PRELIGHT;
1912 context = gtk_widget_get_style_context (widget);
1914 gtk_style_context_save (context);
1916 /* don't set juction sides on scrollbar steppers */
1917 if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_SCROLLBAR))
1918 gtk_style_context_set_junction_sides (context, GTK_JUNCTION_NONE);
1920 _gtk_range_update_context_for_stepper (range, context, stepper);
1922 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1923 gtk_style_context_set_state (context, state);
1925 gtk_render_background (context, cr,
1927 rect->width, rect->height);
1928 gtk_render_frame (context, cr,
1930 rect->width, rect->height);
1932 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1934 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1935 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1936 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1938 if (clicked && arrow_sensitive)
1940 gint arrow_displacement_x;
1941 gint arrow_displacement_y;
1943 gtk_range_get_props (GTK_RANGE (widget),
1944 NULL, NULL, NULL, NULL, NULL, NULL,
1945 &arrow_displacement_x, &arrow_displacement_y);
1947 arrow_x += arrow_displacement_x;
1948 arrow_y += arrow_displacement_y;
1953 case GTK_ARROW_RIGHT:
1956 case GTK_ARROW_DOWN:
1959 case GTK_ARROW_LEFT:
1960 angle = 3 * (G_PI / 2);
1968 gtk_render_arrow (context, cr,
1973 gtk_style_context_restore (context);
1977 gtk_range_draw (GtkWidget *widget,
1980 GtkRange *range = GTK_RANGE (widget);
1981 GtkRangePrivate *priv = range->priv;
1983 GtkStateFlags state = 0;
1984 gint focus_line_width = 0;
1985 gint focus_padding = 0;
1986 gboolean touchscreen;
1987 gboolean draw_trough = TRUE;
1988 GtkStyleContext *context;
1990 context = gtk_widget_get_style_context (widget);
1991 g_object_get (gtk_widget_get_settings (widget),
1992 "gtk-touchscreen-mode", &touchscreen,
1995 if (GTK_IS_SCALE (widget) &&
1996 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
1997 draw_trough = FALSE;
1999 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
2000 gtk_widget_style_get (GTK_WIDGET (range),
2001 "focus-line-width", &focus_line_width,
2002 "focus-padding", &focus_padding,
2005 /* we're now exposing, so there's no need to force early repaints */
2006 if (priv->repaint_id)
2007 g_source_remove (priv->repaint_id);
2008 priv->repaint_id = 0;
2010 gtk_range_calc_marks (range);
2011 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2013 sensitive = gtk_widget_is_sensitive (widget);
2015 /* Just to be confusing, we draw the trough for the whole
2016 * range rectangle, not the trough rectangle (the trough
2017 * rectangle is just for hit detection)
2020 gdk_cairo_rectangle (cr, &priv->range_rect);
2024 gint x = (priv->range_rect.x +
2025 focus_line_width + focus_padding);
2026 gint y = (priv->range_rect.y +
2027 focus_line_width + focus_padding);
2028 gint width = (priv->range_rect.width -
2029 2 * (focus_line_width + focus_padding));
2030 gint height = (priv->range_rect.height -
2031 2 * (focus_line_width + focus_padding));
2032 gboolean trough_under_steppers;
2034 gint stepper_spacing;
2036 gtk_widget_style_get (GTK_WIDGET (range),
2037 "trough-under-steppers", &trough_under_steppers,
2038 "stepper-size", &stepper_size,
2039 "stepper-spacing", &stepper_spacing,
2042 gtk_style_context_save (context);
2045 gtk_style_context_set_state (context, GTK_STATE_FLAG_INSENSITIVE);
2047 if (!trough_under_steppers)
2052 if (priv->has_stepper_a)
2053 offset += stepper_size;
2055 if (priv->has_stepper_b)
2056 offset += stepper_size;
2060 if (priv->has_stepper_c)
2061 shorter += stepper_size;
2063 if (priv->has_stepper_d)
2064 shorter += stepper_size;
2066 if (priv->has_stepper_a || priv->has_stepper_b)
2068 offset += stepper_spacing;
2069 shorter += stepper_spacing;
2072 if (priv->has_stepper_c || priv->has_stepper_d)
2074 shorter += stepper_spacing;
2077 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2089 gtk_style_context_save (context);
2090 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2094 gint trough_change_pos_x = width;
2095 gint trough_change_pos_y = height;
2097 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2098 trough_change_pos_x = (priv->slider.x +
2099 priv->slider.width / 2 -
2102 trough_change_pos_y = (priv->slider.y +
2103 priv->slider.height / 2 -
2106 /* FIXME: was trough-upper and trough-lower really used,
2107 * in that case, it should still be exposed somehow.
2109 gtk_render_background (context, cr, x, y,
2110 trough_change_pos_x,
2111 trough_change_pos_y);
2113 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2114 trough_change_pos_y = 0;
2116 trough_change_pos_x = 0;
2118 gtk_render_background (context, cr,
2119 x + trough_change_pos_x, y + trough_change_pos_y,
2120 width - trough_change_pos_x,
2121 height - trough_change_pos_y);
2123 gtk_render_frame (context, cr,
2124 x, y, width, height);
2128 gtk_render_background (context, cr,
2129 x, y, width, height);
2130 gtk_render_frame (context, cr,
2131 x, y, width, height);
2134 gtk_style_context_restore (context);
2136 if (priv->show_fill_level &&
2137 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2138 gtk_adjustment_get_lower (priv->adjustment) != 0)
2140 gdouble fill_level = priv->fill_level;
2143 gint fill_width = width;
2144 gint fill_height = height;
2146 gtk_style_context_save (context);
2147 gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
2149 fill_level = CLAMP (fill_level, gtk_adjustment_get_lower (priv->adjustment),
2150 gtk_adjustment_get_upper (priv->adjustment) -
2151 gtk_adjustment_get_page_size (priv->adjustment));
2153 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2155 fill_x = priv->trough.x;
2156 fill_width = (priv->slider.width +
2157 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2158 (gtk_adjustment_get_upper (priv->adjustment) -
2159 gtk_adjustment_get_lower (priv->adjustment) -
2160 gtk_adjustment_get_page_size (priv->adjustment)) *
2161 (priv->trough.width -
2162 priv->slider.width));
2164 if (should_invert (range))
2165 fill_x += priv->trough.width - fill_width;
2169 fill_y = priv->trough.y;
2170 fill_height = (priv->slider.height +
2171 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2172 (gtk_adjustment_get_upper (priv->adjustment) -
2173 gtk_adjustment_get_lower (priv->adjustment) -
2174 gtk_adjustment_get_page_size (priv->adjustment)) *
2175 (priv->trough.height -
2176 priv->slider.height));
2178 if (should_invert (range))
2179 fill_y += priv->trough.height - fill_height;
2183 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2184 fill_detail = "trough-fill-level-full";
2186 fill_detail = "trough-fill-level";
2189 gtk_render_activity (context, cr,
2191 fill_width, fill_height);
2193 gtk_style_context_restore (context);
2196 gtk_style_context_restore (context);
2198 if (sensitive && gtk_widget_has_visible_focus (widget))
2200 gtk_style_context_save (context);
2201 gtk_style_context_set_state (context,
2202 gtk_widget_get_state_flags (widget));
2204 gtk_render_focus (context, cr,
2207 priv->range_rect.width,
2208 priv->range_rect.height);
2210 gtk_style_context_restore (context);
2217 state = GTK_STATE_FLAG_INSENSITIVE;
2218 else if (!touchscreen && priv->mouse_location == MOUSE_SLIDER)
2219 state = GTK_STATE_FLAG_PRELIGHT;
2221 if (priv->grab_location == MOUSE_SLIDER)
2222 state |= GTK_STATE_FLAG_ACTIVE;
2225 gdk_cairo_rectangle (cr, &priv->slider);
2230 gtk_style_context_save (context);
2231 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2232 gtk_style_context_set_state (context, state);
2234 gtk_render_slider (context, cr,
2238 priv->slider.height,
2241 gtk_style_context_restore (context);
2246 if (priv->has_stepper_a)
2247 draw_stepper (range, STEPPER_A, cr,
2248 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2249 priv->grab_location == MOUSE_STEPPER_A,
2250 !touchscreen && priv->mouse_location == MOUSE_STEPPER_A);
2252 if (priv->has_stepper_b)
2253 draw_stepper (range, STEPPER_B, cr,
2254 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2255 priv->grab_location == MOUSE_STEPPER_B,
2256 !touchscreen && priv->mouse_location == MOUSE_STEPPER_B);
2258 if (priv->has_stepper_c)
2259 draw_stepper (range, STEPPER_C, cr,
2260 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2261 priv->grab_location == MOUSE_STEPPER_C,
2262 !touchscreen && priv->mouse_location == MOUSE_STEPPER_C);
2264 if (priv->has_stepper_d)
2265 draw_stepper (range, STEPPER_D, cr,
2266 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2267 priv->grab_location == MOUSE_STEPPER_D,
2268 !touchscreen && priv->mouse_location == MOUSE_STEPPER_D);
2274 range_grab_add (GtkRange *range,
2276 MouseLocation location,
2279 GtkRangePrivate *priv = range->priv;
2281 if (device == priv->grab_device)
2284 if (priv->grab_device != NULL)
2286 g_warning ("GtkRange already had a grab device, releasing device grab");
2287 gtk_device_grab_remove (GTK_WIDGET (range), priv->grab_device);
2290 /* we don't actually gdk_grab, since a button is down */
2291 gtk_device_grab_add (GTK_WIDGET (range), device, TRUE);
2293 priv->grab_location = location;
2294 priv->grab_button = button;
2295 priv->grab_device = device;
2297 if (gtk_range_update_mouse_location (range))
2298 gtk_widget_queue_draw (GTK_WIDGET (range));
2302 range_grab_remove (GtkRange *range)
2304 GtkRangePrivate *priv = range->priv;
2305 MouseLocation location;
2307 if (priv->grab_device)
2309 gtk_device_grab_remove (GTK_WIDGET (range),
2311 priv->grab_device = NULL;
2314 location = priv->grab_location;
2315 priv->grab_location = MOUSE_OUTSIDE;
2316 priv->grab_button = 0;
2318 if (gtk_range_update_mouse_location (range) ||
2319 location != MOUSE_OUTSIDE)
2320 gtk_widget_queue_draw (GTK_WIDGET (range));
2323 static GtkScrollType
2324 range_get_scroll_for_grab (GtkRange *range)
2326 GtkRangePrivate *priv = range->priv;
2329 invert = should_invert (range);
2330 switch (priv->grab_location)
2332 /* Backward stepper */
2333 case MOUSE_STEPPER_A:
2334 case MOUSE_STEPPER_C:
2335 switch (priv->grab_button)
2338 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2341 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2344 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2349 /* Forward stepper */
2350 case MOUSE_STEPPER_B:
2351 case MOUSE_STEPPER_D:
2352 switch (priv->grab_button)
2355 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2358 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2361 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2369 if (priv->trough_click_forward)
2370 return GTK_SCROLL_PAGE_FORWARD;
2372 return GTK_SCROLL_PAGE_BACKWARD;
2382 return GTK_SCROLL_NONE;
2386 coord_to_value (GtkRange *range,
2389 GtkRangePrivate *priv = range->priv;
2396 gint trough_under_steppers;
2398 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2400 trough_length = priv->trough.height;
2401 trough_start = priv->trough.y;
2402 slider_length = priv->slider.height;
2406 trough_length = priv->trough.width;
2407 trough_start = priv->trough.x;
2408 slider_length = priv->slider.width;
2411 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2412 &trough_under_steppers, NULL, NULL);
2414 if (! trough_under_steppers)
2416 trough_start += trough_border;
2417 trough_length -= 2 * trough_border;
2420 if (trough_length == slider_length)
2423 frac = (MAX (0, coord - trough_start) /
2424 (gdouble) (trough_length - slider_length));
2426 if (should_invert (range))
2429 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2430 gtk_adjustment_get_lower (priv->adjustment) -
2431 gtk_adjustment_get_page_size (priv->adjustment));
2437 gtk_range_key_press (GtkWidget *widget,
2441 GtkRange *range = GTK_RANGE (widget);
2442 GtkRangePrivate *priv = range->priv;
2444 device = gdk_event_get_device ((GdkEvent *) event);
2445 device = gdk_device_get_associated_device (device);
2447 if (device == priv->grab_device &&
2448 event->keyval == GDK_KEY_Escape &&
2449 priv->grab_location != MOUSE_OUTSIDE)
2451 stop_scrolling (range);
2453 update_slider_position (range,
2454 priv->slide_initial_coordinate,
2455 priv->slide_initial_coordinate);
2460 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2464 gtk_range_button_press (GtkWidget *widget,
2465 GdkEventButton *event)
2467 GtkRange *range = GTK_RANGE (widget);
2468 GtkRangePrivate *priv = range->priv;
2471 if (!gtk_widget_has_focus (widget))
2472 gtk_widget_grab_focus (widget);
2474 /* ignore presses when we're already doing something else. */
2475 if (priv->grab_location != MOUSE_OUTSIDE)
2478 device = gdk_event_get_device ((GdkEvent *) event);
2479 priv->mouse_x = event->x;
2480 priv->mouse_y = event->y;
2482 if (gtk_range_update_mouse_location (range))
2483 gtk_widget_queue_draw (widget);
2485 if (priv->mouse_location == MOUSE_TROUGH &&
2488 /* button 1 steps by page increment, as with button 2 on a stepper
2490 GtkScrollType scroll;
2491 gdouble click_value;
2493 click_value = coord_to_value (range,
2494 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2495 event->y : event->x);
2497 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2498 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2500 scroll = range_get_scroll_for_grab (range);
2502 gtk_range_add_step_timer (range, scroll);
2506 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2507 priv->mouse_location == MOUSE_STEPPER_B ||
2508 priv->mouse_location == MOUSE_STEPPER_C ||
2509 priv->mouse_location == MOUSE_STEPPER_D) &&
2510 (event->button == 1 || event->button == 2 || event->button == 3))
2512 GtkAllocation allocation;
2513 GdkRectangle *stepper_area;
2514 GtkScrollType scroll;
2516 range_grab_add (range, device, priv->mouse_location, event->button);
2518 gtk_widget_get_allocation (widget, &allocation);
2519 stepper_area = get_area (range, priv->mouse_location);
2521 gtk_widget_queue_draw_area (widget,
2522 allocation.x + stepper_area->x,
2523 allocation.y + stepper_area->y,
2524 stepper_area->width,
2525 stepper_area->height);
2527 scroll = range_get_scroll_for_grab (range);
2528 if (scroll != GTK_SCROLL_NONE)
2529 gtk_range_add_step_timer (range, scroll);
2533 else if ((priv->mouse_location == MOUSE_TROUGH &&
2534 event->button == 2) ||
2535 priv->mouse_location == MOUSE_SLIDER)
2537 gboolean need_value_update = FALSE;
2539 /* Any button can be used to drag the slider, but you can start
2540 * dragging the slider with a trough click using button 2;
2541 * On button 2 press, we warp the slider to mouse position,
2542 * then begin the slider drag.
2544 if (event->button == 2)
2546 gdouble slider_low_value, slider_high_value, new_value;
2549 coord_to_value (range,
2550 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2551 event->y : event->x);
2553 coord_to_value (range,
2554 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2555 event->y - priv->slider.height :
2556 event->x - priv->slider.width);
2558 /* compute new value for warped slider */
2559 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2561 /* recalc slider, so we can set slide_initial_slider_position
2564 priv->need_recalc = TRUE;
2565 gtk_range_calc_layout (range, new_value);
2567 /* defer adjustment updates to update_slider_position() in order
2568 * to keep pixel quantisation
2570 need_value_update = TRUE;
2573 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2575 priv->slide_initial_slider_position = priv->slider.y;
2576 priv->slide_initial_coordinate = event->y;
2580 priv->slide_initial_slider_position = priv->slider.x;
2581 priv->slide_initial_coordinate = event->x;
2584 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2586 gtk_widget_queue_draw (widget);
2588 if (need_value_update)
2589 update_slider_position (range, event->x, event->y);
2597 /* During a slide, move the slider as required given new mouse position */
2599 update_slider_position (GtkRange *range,
2603 GtkRangePrivate *priv = range->priv;
2613 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2614 delta = mouse_y - priv->slide_initial_coordinate;
2616 delta = mouse_x - priv->slide_initial_coordinate;
2618 c = priv->slide_initial_slider_position + delta;
2620 new_value = coord_to_value (range, c);
2621 next_value = coord_to_value (range, c + 1);
2622 mark_delta = fabs (next_value - new_value);
2624 for (i = 0; i < priv->n_marks; i++)
2626 mark_value = priv->marks[i];
2628 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2630 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2632 new_value = mark_value;
2638 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2643 stop_scrolling (GtkRange *range)
2645 range_grab_remove (range);
2646 gtk_range_remove_step_timer (range);
2650 gtk_range_grab_broken (GtkWidget *widget,
2651 GdkEventGrabBroken *event)
2653 GtkRange *range = GTK_RANGE (widget);
2654 GtkRangePrivate *priv = range->priv;
2657 device = gdk_event_get_device ((GdkEvent *) event);
2659 if (device == priv->grab_device &&
2660 priv->grab_location != MOUSE_OUTSIDE)
2662 if (priv->grab_location == MOUSE_SLIDER)
2663 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2665 stop_scrolling (range);
2674 gtk_range_button_release (GtkWidget *widget,
2675 GdkEventButton *event)
2677 GtkRange *range = GTK_RANGE (widget);
2678 GtkRangePrivate *priv = range->priv;
2681 if (event->window == priv->event_window)
2683 priv->mouse_x = event->x;
2684 priv->mouse_y = event->y;
2688 gdk_window_get_device_position (priv->event_window,
2695 device = gdk_event_get_device ((GdkEvent *) event);
2697 if (priv->grab_device == device &&
2698 priv->grab_button == event->button)
2700 if (priv->grab_location == MOUSE_SLIDER)
2701 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2703 stop_scrolling (range);
2712 * _gtk_range_get_wheel_delta:
2713 * @range: a #GtkRange
2714 * @direction: A #GdkScrollDirection
2716 * Returns a good step value for the mouse wheel.
2718 * Return value: A good step value for the mouse wheel.
2723 _gtk_range_get_wheel_delta (GtkRange *range,
2724 GdkScrollDirection direction)
2726 GtkRangePrivate *priv = range->priv;
2727 GtkAdjustment *adjustment = priv->adjustment;
2730 if (GTK_IS_SCROLLBAR (range))
2731 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2733 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2735 if (direction == GDK_SCROLL_UP ||
2736 direction == GDK_SCROLL_LEFT)
2746 gtk_range_scroll_event (GtkWidget *widget,
2747 GdkEventScroll *event)
2749 GtkRange *range = GTK_RANGE (widget);
2750 GtkRangePrivate *priv = range->priv;
2752 if (gtk_widget_get_realized (widget))
2757 delta = _gtk_range_get_wheel_delta (range, event->direction);
2759 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2760 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2768 gtk_range_motion_notify (GtkWidget *widget,
2769 GdkEventMotion *event)
2771 GtkRange *range = GTK_RANGE (widget);
2772 GtkRangePrivate *priv = range->priv;
2774 gdk_event_request_motions (event);
2776 priv->mouse_x = event->x;
2777 priv->mouse_y = event->y;
2779 if (gtk_range_update_mouse_location (range))
2780 gtk_widget_queue_draw (widget);
2782 if (priv->grab_location == MOUSE_SLIDER)
2783 update_slider_position (range, event->x, event->y);
2785 /* We handled the event if the mouse was in the range_rect */
2786 return priv->mouse_location != MOUSE_OUTSIDE;
2790 gtk_range_enter_notify (GtkWidget *widget,
2791 GdkEventCrossing *event)
2793 GtkRange *range = GTK_RANGE (widget);
2794 GtkRangePrivate *priv = range->priv;
2796 priv->mouse_x = event->x;
2797 priv->mouse_y = event->y;
2799 if (gtk_range_update_mouse_location (range))
2800 gtk_widget_queue_draw (widget);
2806 gtk_range_leave_notify (GtkWidget *widget,
2807 GdkEventCrossing *event)
2809 GtkRange *range = GTK_RANGE (widget);
2810 GtkRangePrivate *priv = range->priv;
2815 if (gtk_range_update_mouse_location (range))
2816 gtk_widget_queue_draw (widget);
2822 gtk_range_grab_notify (GtkWidget *widget,
2823 gboolean was_grabbed)
2825 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2827 if (priv->grab_device &&
2828 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2829 stop_scrolling (GTK_RANGE (widget));
2833 gtk_range_state_flags_changed (GtkWidget *widget,
2834 GtkStateFlags previous_state)
2836 if (!gtk_widget_is_sensitive (widget))
2837 stop_scrolling (GTK_RANGE (widget));
2840 #define check_rectangle(rectangle1, rectangle2) \
2842 if (rectangle1.x != rectangle2.x) return TRUE; \
2843 if (rectangle1.y != rectangle2.y) return TRUE; \
2844 if (rectangle1.width != rectangle2.width) return TRUE; \
2845 if (rectangle1.height != rectangle2.height) return TRUE; \
2849 layout_changed (GtkRangePrivate *priv1,
2850 GtkRangePrivate *priv2)
2852 check_rectangle (priv1->slider, priv2->slider);
2853 check_rectangle (priv1->trough, priv2->trough);
2854 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2855 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2856 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2857 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2859 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2860 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2866 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2869 GtkRange *range = GTK_RANGE (data);
2870 GtkRangePrivate *priv = range->priv;
2871 GtkRangePrivate priv_aux = *priv;
2873 priv->recalc_marks = TRUE;
2874 priv->need_recalc = TRUE;
2875 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2877 /* now check whether the layout changed */
2878 if (layout_changed (priv, &priv_aux))
2879 gtk_widget_queue_draw (GTK_WIDGET (range));
2881 /* Note that we don't round off to priv->round_digits here.
2882 * that's because it's really broken to change a value
2883 * in response to a change signal on that value; round_digits
2884 * is therefore defined to be a filter on what the GtkRange
2885 * can input into the adjustment, not a filter that the GtkRange
2886 * will enforce on the adjustment.
2891 force_repaint (gpointer data)
2893 GtkRange *range = GTK_RANGE (data);
2894 GtkRangePrivate *priv = range->priv;
2895 GtkWidget *widget = GTK_WIDGET (range);
2897 priv->repaint_id = 0;
2898 if (gtk_widget_is_drawable (widget))
2899 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2905 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2908 GtkRange *range = GTK_RANGE (data);
2909 GtkRangePrivate *priv = range->priv;
2910 GtkRangePrivate priv_aux = *priv;
2912 priv->need_recalc = TRUE;
2913 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2915 /* now check whether the layout changed */
2916 if (layout_changed (priv, &priv_aux) ||
2917 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2919 gtk_widget_queue_draw (GTK_WIDGET (range));
2920 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2921 if (!priv->repaint_id)
2922 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2927 /* Note that we don't round off to priv->round_digits here.
2928 * that's because it's really broken to change a value
2929 * in response to a change signal on that value; round_digits
2930 * is therefore defined to be a filter on what the GtkRange
2931 * can input into the adjustment, not a filter that the GtkRange
2932 * will enforce on the adjustment.
2935 g_signal_emit (range, signals[VALUE_CHANGED], 0);
2939 gtk_range_style_updated (GtkWidget *widget)
2941 GtkRange *range = GTK_RANGE (widget);
2942 GtkRangePrivate *priv = range->priv;
2944 priv->need_recalc = TRUE;
2946 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
2950 apply_marks (GtkRange *range,
2954 GtkRangePrivate *priv = range->priv;
2958 for (i = 0; i < priv->n_marks; i++)
2960 mark = priv->marks[i];
2961 if ((oldval < mark && mark < *newval) ||
2962 (oldval > mark && mark > *newval))
2971 step_back (GtkRange *range)
2973 GtkRangePrivate *priv = range->priv;
2977 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
2978 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2979 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2980 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
2984 step_forward (GtkRange *range)
2986 GtkRangePrivate *priv = range->priv;
2990 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
2991 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2992 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2993 GTK_SCROLL_STEP_FORWARD, newval, &handled);
2998 page_back (GtkRange *range)
3000 GtkRangePrivate *priv = range->priv;
3004 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3005 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3006 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3007 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3011 page_forward (GtkRange *range)
3013 GtkRangePrivate *priv = range->priv;
3017 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3018 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3019 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3020 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3024 scroll_begin (GtkRange *range)
3026 GtkRangePrivate *priv = range->priv;
3029 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3030 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3035 scroll_end (GtkRange *range)
3037 GtkRangePrivate *priv = range->priv;
3041 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3042 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3047 gtk_range_scroll (GtkRange *range,
3048 GtkScrollType scroll)
3050 GtkRangePrivate *priv = range->priv;
3051 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3055 case GTK_SCROLL_STEP_LEFT:
3056 if (should_invert (range))
3057 step_forward (range);
3062 case GTK_SCROLL_STEP_UP:
3063 if (should_invert (range))
3064 step_forward (range);
3069 case GTK_SCROLL_STEP_RIGHT:
3070 if (should_invert (range))
3073 step_forward (range);
3076 case GTK_SCROLL_STEP_DOWN:
3077 if (should_invert (range))
3080 step_forward (range);
3083 case GTK_SCROLL_STEP_BACKWARD:
3087 case GTK_SCROLL_STEP_FORWARD:
3088 step_forward (range);
3091 case GTK_SCROLL_PAGE_LEFT:
3092 if (should_invert (range))
3093 page_forward (range);
3098 case GTK_SCROLL_PAGE_UP:
3099 if (should_invert (range))
3100 page_forward (range);
3105 case GTK_SCROLL_PAGE_RIGHT:
3106 if (should_invert (range))
3109 page_forward (range);
3112 case GTK_SCROLL_PAGE_DOWN:
3113 if (should_invert (range))
3116 page_forward (range);
3119 case GTK_SCROLL_PAGE_BACKWARD:
3123 case GTK_SCROLL_PAGE_FORWARD:
3124 page_forward (range);
3127 case GTK_SCROLL_START:
3128 scroll_begin (range);
3131 case GTK_SCROLL_END:
3135 case GTK_SCROLL_JUMP:
3136 /* Used by CList, range doesn't use it. */
3139 case GTK_SCROLL_NONE:
3143 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3147 gtk_range_move_slider (GtkRange *range,
3148 GtkScrollType scroll)
3150 GtkRangePrivate *priv = range->priv;
3151 gboolean cursor_only;
3153 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3154 "gtk-keynav-cursor-only", &cursor_only,
3159 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3161 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3163 if (scroll == GTK_SCROLL_STEP_UP ||
3164 scroll == GTK_SCROLL_STEP_DOWN)
3167 gtk_widget_child_focus (toplevel,
3168 scroll == GTK_SCROLL_STEP_UP ?
3169 GTK_DIR_UP : GTK_DIR_DOWN);
3175 if (scroll == GTK_SCROLL_STEP_LEFT ||
3176 scroll == GTK_SCROLL_STEP_RIGHT)
3179 gtk_widget_child_focus (toplevel,
3180 scroll == GTK_SCROLL_STEP_LEFT ?
3181 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3187 if (! gtk_range_scroll (range, scroll))
3188 gtk_widget_error_bell (GTK_WIDGET (range));
3192 gtk_range_get_props (GtkRange *range,
3196 gint *trough_border,
3197 gint *stepper_spacing,
3198 gboolean *trough_under_steppers,
3199 gint *arrow_displacement_x,
3200 gint *arrow_displacement_y)
3202 GtkWidget *widget = GTK_WIDGET (range);
3203 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3204 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3205 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3207 gtk_widget_style_get (widget,
3208 "slider-width", &tmp_slider_width,
3209 "trough-border", &tmp_trough_border,
3210 "stepper-size", &tmp_stepper_size,
3211 "stepper-spacing", &tmp_stepper_spacing,
3212 "trough-under-steppers", &tmp_trough_under_steppers,
3213 "arrow-displacement-x", &tmp_arrow_displacement_x,
3214 "arrow-displacement-y", &tmp_arrow_displacement_y,
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;