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;
140 /* The range has an origin, should be drawn differently. Used by GtkScale */
141 guint has_origin : 1;
144 guint show_fill_level : 1;
145 guint restrict_to_fill_level : 1;
147 guint grab_button : 8; /* 0 if none */
156 PROP_LOWER_STEPPER_SENSITIVITY,
157 PROP_UPPER_STEPPER_SENSITIVITY,
158 PROP_SHOW_FILL_LEVEL,
159 PROP_RESTRICT_TO_FILL_LEVEL,
179 static void gtk_range_set_property (GObject *object,
183 static void gtk_range_get_property (GObject *object,
187 static void gtk_range_destroy (GtkWidget *widget);
188 static void gtk_range_get_preferred_width
192 static void gtk_range_get_preferred_height
196 static void gtk_range_size_allocate (GtkWidget *widget,
197 GtkAllocation *allocation);
198 static void gtk_range_hierarchy_changed (GtkWidget *widget,
199 GtkWidget *previous_toplevel);
200 static void gtk_range_realize (GtkWidget *widget);
201 static void gtk_range_unrealize (GtkWidget *widget);
202 static void gtk_range_map (GtkWidget *widget);
203 static void gtk_range_unmap (GtkWidget *widget);
204 static gboolean gtk_range_draw (GtkWidget *widget,
206 static gboolean gtk_range_button_press (GtkWidget *widget,
207 GdkEventButton *event);
208 static gboolean gtk_range_button_release (GtkWidget *widget,
209 GdkEventButton *event);
210 static gboolean gtk_range_motion_notify (GtkWidget *widget,
211 GdkEventMotion *event);
212 static gboolean gtk_range_enter_notify (GtkWidget *widget,
213 GdkEventCrossing *event);
214 static gboolean gtk_range_leave_notify (GtkWidget *widget,
215 GdkEventCrossing *event);
216 static gboolean gtk_range_grab_broken (GtkWidget *widget,
217 GdkEventGrabBroken *event);
218 static void gtk_range_grab_notify (GtkWidget *widget,
219 gboolean was_grabbed);
220 static void gtk_range_state_flags_changed (GtkWidget *widget,
221 GtkStateFlags previous_state);
222 static gboolean gtk_range_scroll_event (GtkWidget *widget,
223 GdkEventScroll *event);
224 static void gtk_range_style_updated (GtkWidget *widget);
225 static void update_slider_position (GtkRange *range,
228 static void stop_scrolling (GtkRange *range);
229 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
230 GtkAllocation *allocation);
234 static void gtk_range_move_slider (GtkRange *range,
235 GtkScrollType scroll);
238 static gboolean gtk_range_scroll (GtkRange *range,
239 GtkScrollType scroll);
240 static gboolean gtk_range_update_mouse_location (GtkRange *range);
241 static void gtk_range_calc_layout (GtkRange *range,
242 gdouble adjustment_value);
243 static void gtk_range_calc_marks (GtkRange *range);
244 static void gtk_range_get_props (GtkRange *range,
249 gint *stepper_spacing,
250 gboolean *trough_under_steppers,
251 gint *arrow_displacement_x,
252 gint *arrow_displacement_y);
253 static void gtk_range_calc_request (GtkRange *range,
258 gint stepper_spacing,
259 GdkRectangle *range_rect,
262 gboolean *has_steppers_ab,
263 gboolean *has_steppers_cd,
264 gint *slider_length_p);
265 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
267 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
269 static void gtk_range_add_step_timer (GtkRange *range,
271 static void gtk_range_remove_step_timer (GtkRange *range);
272 static GdkRectangle* get_area (GtkRange *range,
273 MouseLocation location);
274 static gboolean gtk_range_real_change_value (GtkRange *range,
275 GtkScrollType scroll,
277 static gboolean gtk_range_key_press (GtkWidget *range,
281 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
282 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
285 static guint signals[LAST_SIGNAL];
289 gtk_range_class_init (GtkRangeClass *class)
291 GObjectClass *gobject_class;
292 GtkWidgetClass *widget_class;
294 gobject_class = G_OBJECT_CLASS (class);
295 widget_class = (GtkWidgetClass*) class;
297 gobject_class->set_property = gtk_range_set_property;
298 gobject_class->get_property = gtk_range_get_property;
300 widget_class->destroy = gtk_range_destroy;
301 widget_class->get_preferred_width = gtk_range_get_preferred_width;
302 widget_class->get_preferred_height = gtk_range_get_preferred_height;
303 widget_class->size_allocate = gtk_range_size_allocate;
304 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
305 widget_class->realize = gtk_range_realize;
306 widget_class->unrealize = gtk_range_unrealize;
307 widget_class->map = gtk_range_map;
308 widget_class->unmap = gtk_range_unmap;
309 widget_class->draw = gtk_range_draw;
310 widget_class->button_press_event = gtk_range_button_press;
311 widget_class->button_release_event = gtk_range_button_release;
312 widget_class->motion_notify_event = gtk_range_motion_notify;
313 widget_class->scroll_event = gtk_range_scroll_event;
314 widget_class->enter_notify_event = gtk_range_enter_notify;
315 widget_class->leave_notify_event = gtk_range_leave_notify;
316 widget_class->grab_broken_event = gtk_range_grab_broken;
317 widget_class->grab_notify = gtk_range_grab_notify;
318 widget_class->state_flags_changed = gtk_range_state_flags_changed;
319 widget_class->style_updated = gtk_range_style_updated;
320 widget_class->key_press_event = gtk_range_key_press;
322 class->move_slider = gtk_range_move_slider;
323 class->change_value = gtk_range_real_change_value;
325 class->slider_detail = "slider";
326 class->stepper_detail = "stepper";
329 * GtkRange::value-changed:
330 * @range: the #GtkRange that received the signal
332 * Emitted when the range value changes.
334 signals[VALUE_CHANGED] =
335 g_signal_new (I_("value-changed"),
336 G_TYPE_FROM_CLASS (gobject_class),
338 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
340 _gtk_marshal_VOID__VOID,
344 * GtkRange::adjust-bounds:
345 * @range: the #GtkRange that received the signal
346 * @value: the value before we clamp
348 * Emitted before clamping a value, to give the application a
349 * chance to adjust the bounds.
351 signals[ADJUST_BOUNDS] =
352 g_signal_new (I_("adjust-bounds"),
353 G_TYPE_FROM_CLASS (gobject_class),
355 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
357 _gtk_marshal_VOID__DOUBLE,
362 * GtkRange::move-slider:
363 * @range: the #GtkRange that received the signal
364 * @step: how to move the slider
366 * Virtual function that moves the slider. Used for keybindings.
368 signals[MOVE_SLIDER] =
369 g_signal_new (I_("move-slider"),
370 G_TYPE_FROM_CLASS (gobject_class),
371 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
372 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
374 _gtk_marshal_VOID__ENUM,
376 GTK_TYPE_SCROLL_TYPE);
379 * GtkRange::change-value:
380 * @range: the #GtkRange that received the signal
381 * @scroll: the type of scroll action that was performed
382 * @value: the new value resulting from the scroll action
384 * The #GtkRange::change-value signal is emitted when a scroll action is
385 * performed on a range. It allows an application to determine the
386 * type of scroll event that occurred and the resultant new value.
387 * The application can handle the event itself and return %TRUE to
388 * prevent further processing. Or, by returning %FALSE, it can pass
389 * the event to other handlers until the default GTK+ handler is
392 * The value parameter is unrounded. An application that overrides
393 * the GtkRange::change-value signal is responsible for clamping the
394 * value to the desired number of decimal digits; the default GTK+
395 * handler clamps the value based on #GtkRange:round-digits.
397 * It is not possible to use delayed update policies in an overridden
398 * #GtkRange::change-value handler.
400 * Returns: %TRUE to prevent other handlers from being invoked for
401 * the signal, %FALSE to propagate the signal further
405 signals[CHANGE_VALUE] =
406 g_signal_new (I_("change-value"),
407 G_TYPE_FROM_CLASS (gobject_class),
409 G_STRUCT_OFFSET (GtkRangeClass, change_value),
410 _gtk_boolean_handled_accumulator, NULL,
411 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
413 GTK_TYPE_SCROLL_TYPE,
416 g_object_class_override_property (gobject_class,
420 g_object_class_install_property (gobject_class,
422 g_param_spec_object ("adjustment",
424 P_("The GtkAdjustment that contains the current value of this range object"),
426 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
428 g_object_class_install_property (gobject_class,
430 g_param_spec_boolean ("inverted",
432 P_("Invert direction slider moves to increase range value"),
434 GTK_PARAM_READWRITE));
436 g_object_class_install_property (gobject_class,
437 PROP_LOWER_STEPPER_SENSITIVITY,
438 g_param_spec_enum ("lower-stepper-sensitivity",
439 P_("Lower stepper sensitivity"),
440 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
441 GTK_TYPE_SENSITIVITY_TYPE,
442 GTK_SENSITIVITY_AUTO,
443 GTK_PARAM_READWRITE));
445 g_object_class_install_property (gobject_class,
446 PROP_UPPER_STEPPER_SENSITIVITY,
447 g_param_spec_enum ("upper-stepper-sensitivity",
448 P_("Upper stepper sensitivity"),
449 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
450 GTK_TYPE_SENSITIVITY_TYPE,
451 GTK_SENSITIVITY_AUTO,
452 GTK_PARAM_READWRITE));
455 * GtkRange:show-fill-level:
457 * The show-fill-level property controls whether fill level indicator
458 * graphics are displayed on the trough. See
459 * gtk_range_set_show_fill_level().
463 g_object_class_install_property (gobject_class,
464 PROP_SHOW_FILL_LEVEL,
465 g_param_spec_boolean ("show-fill-level",
466 P_("Show Fill Level"),
467 P_("Whether to display a fill level indicator graphics on trough."),
469 GTK_PARAM_READWRITE));
472 * GtkRange:restrict-to-fill-level:
474 * The restrict-to-fill-level property controls whether slider
475 * movement is restricted to an upper boundary set by the
476 * fill level. See gtk_range_set_restrict_to_fill_level().
480 g_object_class_install_property (gobject_class,
481 PROP_RESTRICT_TO_FILL_LEVEL,
482 g_param_spec_boolean ("restrict-to-fill-level",
483 P_("Restrict to Fill Level"),
484 P_("Whether to restrict the upper boundary to the fill level."),
486 GTK_PARAM_READWRITE));
489 * GtkRange:fill-level:
491 * The fill level (e.g. prebuffering of a network stream).
492 * See gtk_range_set_fill_level().
496 g_object_class_install_property (gobject_class,
498 g_param_spec_double ("fill-level",
500 P_("The fill level."),
504 GTK_PARAM_READWRITE));
507 * GtkRange:round-digits:
509 * The number of digits to round the value to when
510 * it changes, or -1. See #GtkRange::change-value.
514 g_object_class_install_property (gobject_class,
516 g_param_spec_int ("round-digits",
518 P_("The number of digits to round the value to."),
522 GTK_PARAM_READWRITE));
524 gtk_widget_class_install_style_property (widget_class,
525 g_param_spec_int ("slider-width",
527 P_("Width of scrollbar or scale thumb"),
531 GTK_PARAM_READABLE));
532 gtk_widget_class_install_style_property (widget_class,
533 g_param_spec_int ("trough-border",
535 P_("Spacing between thumb/steppers and outer trough bevel"),
539 GTK_PARAM_READABLE));
540 gtk_widget_class_install_style_property (widget_class,
541 g_param_spec_int ("stepper-size",
543 P_("Length of step buttons at ends"),
547 GTK_PARAM_READABLE));
549 * GtkRange:stepper-spacing:
551 * The spacing between the stepper buttons and thumb. Note that
552 * stepper-spacing won't have any effect if there are no steppers.
554 gtk_widget_class_install_style_property (widget_class,
555 g_param_spec_int ("stepper-spacing",
556 P_("Stepper Spacing"),
557 P_("Spacing between step buttons and thumb"),
561 GTK_PARAM_READABLE));
562 gtk_widget_class_install_style_property (widget_class,
563 g_param_spec_int ("arrow-displacement-x",
564 P_("Arrow X Displacement"),
565 P_("How far in the x direction to move the arrow when the button is depressed"),
569 GTK_PARAM_READABLE));
570 gtk_widget_class_install_style_property (widget_class,
571 g_param_spec_int ("arrow-displacement-y",
572 P_("Arrow Y Displacement"),
573 P_("How far in the y direction to move the arrow when the button is depressed"),
577 GTK_PARAM_READABLE));
580 * GtkRange:trough-under-steppers:
582 * Whether to draw the trough across the full length of the range or
583 * to exclude the steppers and their spacing.
587 gtk_widget_class_install_style_property (widget_class,
588 g_param_spec_boolean ("trough-under-steppers",
589 P_("Trough Under Steppers"),
590 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
592 GTK_PARAM_READABLE));
595 * GtkRange:arrow-scaling:
597 * The arrow size proportion relative to the scroll button size.
601 gtk_widget_class_install_style_property (widget_class,
602 g_param_spec_float ("arrow-scaling",
604 P_("Arrow scaling with regard to scroll button size"),
606 GTK_PARAM_READABLE));
608 g_type_class_add_private (class, sizeof (GtkRangePrivate));
610 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_RANGE_ACCESSIBLE);
614 gtk_range_set_property (GObject *object,
619 GtkRange *range = GTK_RANGE (object);
620 GtkRangePrivate *priv = range->priv;
624 case PROP_ORIENTATION:
625 priv->orientation = g_value_get_enum (value);
627 priv->slider_detail_quark = 0;
628 priv->stepper_detail_quark[0] = 0;
629 priv->stepper_detail_quark[1] = 0;
630 priv->stepper_detail_quark[2] = 0;
631 priv->stepper_detail_quark[3] = 0;
633 _gtk_orientable_set_style_classes (GTK_ORIENTABLE (range));
634 gtk_widget_queue_resize (GTK_WIDGET (range));
636 case PROP_ADJUSTMENT:
637 gtk_range_set_adjustment (range, g_value_get_object (value));
640 gtk_range_set_inverted (range, g_value_get_boolean (value));
642 case PROP_LOWER_STEPPER_SENSITIVITY:
643 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
645 case PROP_UPPER_STEPPER_SENSITIVITY:
646 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
648 case PROP_SHOW_FILL_LEVEL:
649 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
651 case PROP_RESTRICT_TO_FILL_LEVEL:
652 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
654 case PROP_FILL_LEVEL:
655 gtk_range_set_fill_level (range, g_value_get_double (value));
657 case PROP_ROUND_DIGITS:
658 gtk_range_set_round_digits (range, g_value_get_int (value));
661 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
667 gtk_range_get_property (GObject *object,
672 GtkRange *range = GTK_RANGE (object);
673 GtkRangePrivate *priv = range->priv;
677 case PROP_ORIENTATION:
678 g_value_set_enum (value, priv->orientation);
680 case PROP_ADJUSTMENT:
681 g_value_set_object (value, priv->adjustment);
684 g_value_set_boolean (value, priv->inverted);
686 case PROP_LOWER_STEPPER_SENSITIVITY:
687 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
689 case PROP_UPPER_STEPPER_SENSITIVITY:
690 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
692 case PROP_SHOW_FILL_LEVEL:
693 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
695 case PROP_RESTRICT_TO_FILL_LEVEL:
696 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
698 case PROP_FILL_LEVEL:
699 g_value_set_double (value, gtk_range_get_fill_level (range));
701 case PROP_ROUND_DIGITS:
702 g_value_set_int (value, gtk_range_get_round_digits (range));
705 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
711 gtk_range_init (GtkRange *range)
713 GtkRangePrivate *priv;
715 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
720 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
722 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
723 priv->adjustment = NULL;
724 priv->inverted = FALSE;
725 priv->flippable = FALSE;
726 priv->min_slider_size = 1;
727 priv->has_stepper_a = FALSE;
728 priv->has_stepper_b = FALSE;
729 priv->has_stepper_c = FALSE;
730 priv->has_stepper_d = FALSE;
731 priv->need_recalc = TRUE;
732 priv->round_digits = -1;
733 priv->mouse_location = MOUSE_OUTSIDE;
736 priv->grab_location = MOUSE_OUTSIDE;
737 priv->grab_button = 0;
738 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
739 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
740 priv->lower_sensitive = TRUE;
741 priv->upper_sensitive = TRUE;
742 priv->has_origin = FALSE;
743 priv->show_fill_level = FALSE;
744 priv->restrict_to_fill_level = TRUE;
745 priv->fill_level = G_MAXDOUBLE;
750 * gtk_range_get_adjustment:
751 * @range: a #GtkRange
753 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
754 * See gtk_range_set_adjustment() for details.
755 * The return value does not have a reference added, so should not
758 * Return value: (transfer none): a #GtkAdjustment
761 gtk_range_get_adjustment (GtkRange *range)
763 GtkRangePrivate *priv;
765 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
769 if (!priv->adjustment)
770 gtk_range_set_adjustment (range, NULL);
772 return priv->adjustment;
776 * gtk_range_set_adjustment:
777 * @range: a #GtkRange
778 * @adjustment: a #GtkAdjustment
780 * Sets the adjustment to be used as the "model" object for this range
781 * widget. The adjustment indicates the current range value, the
782 * minimum and maximum range values, the step/page increments used
783 * for keybindings and scrolling, and the page size. The page size
784 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
785 * indicates the size of the visible area of the widget being scrolled.
786 * The page size affects the size of the scrollbar slider.
789 gtk_range_set_adjustment (GtkRange *range,
790 GtkAdjustment *adjustment)
792 GtkRangePrivate *priv;
794 g_return_if_fail (GTK_IS_RANGE (range));
799 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
801 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
803 if (priv->adjustment != adjustment)
805 if (priv->adjustment)
807 g_signal_handlers_disconnect_by_func (priv->adjustment,
808 gtk_range_adjustment_changed,
810 g_signal_handlers_disconnect_by_func (priv->adjustment,
811 gtk_range_adjustment_value_changed,
813 g_object_unref (priv->adjustment);
816 priv->adjustment = adjustment;
817 g_object_ref_sink (adjustment);
819 g_signal_connect (adjustment, "changed",
820 G_CALLBACK (gtk_range_adjustment_changed),
822 g_signal_connect (adjustment, "value-changed",
823 G_CALLBACK (gtk_range_adjustment_value_changed),
826 gtk_range_adjustment_changed (adjustment, range);
827 g_object_notify (G_OBJECT (range), "adjustment");
832 * gtk_range_set_inverted:
833 * @range: a #GtkRange
834 * @setting: %TRUE to invert the range
836 * Ranges normally move from lower to higher values as the
837 * slider moves from top to bottom or left to right. Inverted
838 * ranges have higher values at the top or on the right rather than
839 * on the bottom or left.
842 gtk_range_set_inverted (GtkRange *range,
845 GtkRangePrivate *priv;
847 g_return_if_fail (GTK_IS_RANGE (range));
851 setting = setting != FALSE;
853 if (setting != priv->inverted)
855 priv->inverted = setting;
856 g_object_notify (G_OBJECT (range), "inverted");
857 gtk_widget_queue_resize (GTK_WIDGET (range));
862 * gtk_range_get_inverted:
863 * @range: a #GtkRange
865 * Gets the value set by gtk_range_set_inverted().
867 * Return value: %TRUE if the range is inverted
870 gtk_range_get_inverted (GtkRange *range)
872 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
874 return range->priv->inverted;
878 * gtk_range_set_flippable:
879 * @range: a #GtkRange
880 * @flippable: %TRUE to make the range flippable
882 * If a range is flippable, it will switch its direction if it is
883 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
885 * See gtk_widget_get_direction().
890 gtk_range_set_flippable (GtkRange *range,
893 GtkRangePrivate *priv;
895 g_return_if_fail (GTK_IS_RANGE (range));
899 flippable = flippable ? TRUE : FALSE;
901 if (flippable != priv->flippable)
903 priv->flippable = flippable;
905 gtk_widget_queue_draw (GTK_WIDGET (range));
910 * gtk_range_get_flippable:
911 * @range: a #GtkRange
913 * Gets the value set by gtk_range_set_flippable().
915 * Return value: %TRUE if the range is flippable
920 gtk_range_get_flippable (GtkRange *range)
922 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
924 return range->priv->flippable;
928 * gtk_range_set_slider_size_fixed:
929 * @range: a #GtkRange
930 * @size_fixed: %TRUE to make the slider size constant
932 * Sets whether the range's slider has a fixed size, or a size that
933 * depends on its adjustment's page size.
935 * This function is useful mainly for #GtkRange subclasses.
940 gtk_range_set_slider_size_fixed (GtkRange *range,
943 GtkRangePrivate *priv;
945 g_return_if_fail (GTK_IS_RANGE (range));
949 if (size_fixed != priv->slider_size_fixed)
951 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
953 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
955 priv->need_recalc = TRUE;
956 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
957 gtk_widget_queue_draw (GTK_WIDGET (range));
963 * gtk_range_get_slider_size_fixed:
964 * @range: a #GtkRange
966 * This function is useful mainly for #GtkRange subclasses.
968 * See gtk_range_set_slider_size_fixed().
970 * Return value: whether the range's slider has a fixed size.
975 gtk_range_get_slider_size_fixed (GtkRange *range)
977 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
979 return range->priv->slider_size_fixed;
983 * gtk_range_set_min_slider_size:
984 * @range: a #GtkRange
985 * @min_size: The slider's minimum size
987 * Sets the minimum size of the range's slider.
989 * This function is useful mainly for #GtkRange subclasses.
994 gtk_range_set_min_slider_size (GtkRange *range,
997 GtkRangePrivate *priv;
999 g_return_if_fail (GTK_IS_RANGE (range));
1000 g_return_if_fail (min_size > 0);
1004 if (min_size != priv->min_slider_size)
1006 priv->min_slider_size = min_size;
1008 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1010 priv->need_recalc = TRUE;
1011 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1012 gtk_widget_queue_draw (GTK_WIDGET (range));
1018 * gtk_range_get_min_slider_size:
1019 * @range: a #GtkRange
1021 * This function is useful mainly for #GtkRange subclasses.
1023 * See gtk_range_set_min_slider_size().
1025 * Return value: The minimum size of the range's slider.
1030 gtk_range_get_min_slider_size (GtkRange *range)
1032 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1034 return range->priv->min_slider_size;
1038 * gtk_range_get_range_rect:
1039 * @range: a #GtkRange
1040 * @range_rect: (out): return location for the range rectangle
1042 * This function returns the area that contains the range's trough
1043 * and its steppers, in widget->window coordinates.
1045 * This function is useful mainly for #GtkRange subclasses.
1050 gtk_range_get_range_rect (GtkRange *range,
1051 GdkRectangle *range_rect)
1053 GtkRangePrivate *priv;
1055 g_return_if_fail (GTK_IS_RANGE (range));
1056 g_return_if_fail (range_rect != NULL);
1060 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1062 *range_rect = priv->range_rect;
1066 * gtk_range_get_slider_range:
1067 * @range: a #GtkRange
1068 * @slider_start: (out) (allow-none): return location for the slider's
1070 * @slider_end: (out) (allow-none): return location for the slider's
1073 * This function returns sliders range along the long dimension,
1074 * in widget->window coordinates.
1076 * This function is useful mainly for #GtkRange subclasses.
1081 gtk_range_get_slider_range (GtkRange *range,
1085 GtkRangePrivate *priv;
1087 g_return_if_fail (GTK_IS_RANGE (range));
1091 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1094 *slider_start = priv->slider_start;
1097 *slider_end = priv->slider_end;
1101 * gtk_range_set_lower_stepper_sensitivity:
1102 * @range: a #GtkRange
1103 * @sensitivity: the lower stepper's sensitivity policy.
1105 * Sets the sensitivity policy for the stepper that points to the
1106 * 'lower' end of the GtkRange's adjustment.
1111 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1112 GtkSensitivityType sensitivity)
1114 GtkRangePrivate *priv;
1116 g_return_if_fail (GTK_IS_RANGE (range));
1120 if (priv->lower_sensitivity != sensitivity)
1122 priv->lower_sensitivity = sensitivity;
1124 priv->need_recalc = TRUE;
1125 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1126 gtk_widget_queue_draw (GTK_WIDGET (range));
1128 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1133 * gtk_range_get_lower_stepper_sensitivity:
1134 * @range: a #GtkRange
1136 * Gets the sensitivity policy for the stepper that points to the
1137 * 'lower' end of the GtkRange's adjustment.
1139 * Return value: The lower stepper's sensitivity policy.
1144 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1146 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1148 return range->priv->lower_sensitivity;
1152 * gtk_range_set_upper_stepper_sensitivity:
1153 * @range: a #GtkRange
1154 * @sensitivity: the upper stepper's sensitivity policy.
1156 * Sets the sensitivity policy for the stepper that points to the
1157 * 'upper' end of the GtkRange's adjustment.
1162 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1163 GtkSensitivityType sensitivity)
1165 GtkRangePrivate *priv;
1167 g_return_if_fail (GTK_IS_RANGE (range));
1171 if (priv->upper_sensitivity != sensitivity)
1173 priv->upper_sensitivity = sensitivity;
1175 priv->need_recalc = TRUE;
1176 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1177 gtk_widget_queue_draw (GTK_WIDGET (range));
1179 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1184 * gtk_range_get_upper_stepper_sensitivity:
1185 * @range: a #GtkRange
1187 * Gets the sensitivity policy for the stepper that points to the
1188 * 'upper' end of the GtkRange's adjustment.
1190 * Return value: The upper stepper's sensitivity policy.
1195 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1197 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1199 return range->priv->upper_sensitivity;
1203 * gtk_range_set_increments:
1204 * @range: a #GtkRange
1208 * Sets the step and page sizes for the range.
1209 * The step size is used when the user clicks the #GtkScrollbar
1210 * arrows or moves #GtkScale via arrow keys. The page size
1211 * is used for example when moving via Page Up or Page Down keys.
1214 gtk_range_set_increments (GtkRange *range,
1218 GtkAdjustment *adjustment;
1220 g_return_if_fail (GTK_IS_RANGE (range));
1222 adjustment = range->priv->adjustment;
1224 gtk_adjustment_configure (adjustment,
1225 gtk_adjustment_get_value (adjustment),
1226 gtk_adjustment_get_lower (adjustment),
1227 gtk_adjustment_get_upper (adjustment),
1230 gtk_adjustment_get_page_size (adjustment));
1234 * gtk_range_set_range:
1235 * @range: a #GtkRange
1236 * @min: minimum range value
1237 * @max: maximum range value
1239 * Sets the allowable values in the #GtkRange, and clamps the range
1240 * value to be between @min and @max. (If the range has a non-zero
1241 * page size, it is clamped between @min and @max - page-size.)
1244 gtk_range_set_range (GtkRange *range,
1248 GtkRangePrivate *priv;
1249 GtkAdjustment *adjustment;
1252 g_return_if_fail (GTK_IS_RANGE (range));
1253 g_return_if_fail (min <= max);
1256 adjustment = priv->adjustment;
1258 value = gtk_adjustment_get_value (adjustment);
1259 if (priv->restrict_to_fill_level)
1260 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1263 gtk_adjustment_configure (adjustment,
1267 gtk_adjustment_get_step_increment (adjustment),
1268 gtk_adjustment_get_page_increment (adjustment),
1269 gtk_adjustment_get_page_size (adjustment));
1273 * gtk_range_set_value:
1274 * @range: a #GtkRange
1275 * @value: new value of the range
1277 * Sets the current value of the range; if the value is outside the
1278 * minimum or maximum range values, it will be clamped to fit inside
1279 * them. The range emits the #GtkRange::value-changed signal if the
1283 gtk_range_set_value (GtkRange *range,
1286 GtkRangePrivate *priv;
1288 g_return_if_fail (GTK_IS_RANGE (range));
1292 if (priv->restrict_to_fill_level)
1293 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1296 gtk_adjustment_set_value (priv->adjustment, value);
1300 * gtk_range_get_value:
1301 * @range: a #GtkRange
1303 * Gets the current value of the range.
1305 * Return value: current value of the range.
1308 gtk_range_get_value (GtkRange *range)
1310 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1312 return gtk_adjustment_get_value (range->priv->adjustment);
1316 * gtk_range_set_show_fill_level:
1317 * @range: A #GtkRange
1318 * @show_fill_level: Whether a fill level indicator graphics is shown.
1320 * Sets whether a graphical fill level is show on the trough. See
1321 * gtk_range_set_fill_level() for a general description of the fill
1327 gtk_range_set_show_fill_level (GtkRange *range,
1328 gboolean show_fill_level)
1330 GtkRangePrivate *priv;
1332 g_return_if_fail (GTK_IS_RANGE (range));
1336 show_fill_level = show_fill_level ? TRUE : FALSE;
1338 if (show_fill_level != priv->show_fill_level)
1340 priv->show_fill_level = show_fill_level;
1341 g_object_notify (G_OBJECT (range), "show-fill-level");
1342 gtk_widget_queue_draw (GTK_WIDGET (range));
1347 * gtk_range_get_show_fill_level:
1348 * @range: A #GtkRange
1350 * Gets whether the range displays the fill level graphically.
1352 * Return value: %TRUE if @range shows the fill level.
1357 gtk_range_get_show_fill_level (GtkRange *range)
1359 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1361 return range->priv->show_fill_level;
1365 * gtk_range_set_restrict_to_fill_level:
1366 * @range: A #GtkRange
1367 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1369 * Sets whether the slider is restricted to the fill level. See
1370 * gtk_range_set_fill_level() for a general description of the fill
1376 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1377 gboolean restrict_to_fill_level)
1379 GtkRangePrivate *priv;
1381 g_return_if_fail (GTK_IS_RANGE (range));
1385 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1387 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1389 priv->restrict_to_fill_level = restrict_to_fill_level;
1390 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1392 gtk_range_set_value (range, gtk_range_get_value (range));
1397 * gtk_range_get_restrict_to_fill_level:
1398 * @range: A #GtkRange
1400 * Gets whether the range is restricted to the fill level.
1402 * Return value: %TRUE if @range is restricted to the fill level.
1407 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1409 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1411 return range->priv->restrict_to_fill_level;
1415 * gtk_range_set_fill_level:
1416 * @range: a #GtkRange
1417 * @fill_level: the new position of the fill level indicator
1419 * Set the new position of the fill level indicator.
1421 * The "fill level" is probably best described by its most prominent
1422 * use case, which is an indicator for the amount of pre-buffering in
1423 * a streaming media player. In that use case, the value of the range
1424 * would indicate the current play position, and the fill level would
1425 * be the position up to which the file/stream has been downloaded.
1427 * This amount of prebuffering can be displayed on the range's trough
1428 * and is themeable separately from the trough. To enable fill level
1429 * display, use gtk_range_set_show_fill_level(). The range defaults
1430 * to not showing the fill level.
1432 * Additionally, it's possible to restrict the range's slider position
1433 * to values which are smaller than the fill level. This is controller
1434 * by gtk_range_set_restrict_to_fill_level() and is by default
1440 gtk_range_set_fill_level (GtkRange *range,
1443 GtkRangePrivate *priv;
1445 g_return_if_fail (GTK_IS_RANGE (range));
1449 if (fill_level != priv->fill_level)
1451 priv->fill_level = fill_level;
1452 g_object_notify (G_OBJECT (range), "fill-level");
1454 if (priv->show_fill_level)
1455 gtk_widget_queue_draw (GTK_WIDGET (range));
1457 if (priv->restrict_to_fill_level)
1458 gtk_range_set_value (range, gtk_range_get_value (range));
1463 * gtk_range_get_fill_level:
1464 * @range: A #GtkRange
1466 * Gets the current position of the fill level indicator.
1468 * Return value: The current fill level
1473 gtk_range_get_fill_level (GtkRange *range)
1475 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1477 return range->priv->fill_level;
1481 should_invert (GtkRange *range)
1483 GtkRangePrivate *priv = range->priv;
1485 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1487 (priv->inverted && !priv->flippable) ||
1488 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1489 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1491 return priv->inverted;
1495 gtk_range_destroy (GtkWidget *widget)
1497 GtkRange *range = GTK_RANGE (widget);
1498 GtkRangePrivate *priv = range->priv;
1500 gtk_range_remove_step_timer (range);
1502 if (priv->repaint_id)
1503 g_source_remove (priv->repaint_id);
1504 priv->repaint_id = 0;
1506 if (priv->adjustment)
1508 g_signal_handlers_disconnect_by_func (priv->adjustment,
1509 gtk_range_adjustment_changed,
1511 g_signal_handlers_disconnect_by_func (priv->adjustment,
1512 gtk_range_adjustment_value_changed,
1514 g_object_unref (priv->adjustment);
1515 priv->adjustment = NULL;
1520 g_free (priv->marks);
1522 g_free (priv->mark_pos);
1523 priv->mark_pos = NULL;
1527 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1531 gtk_range_get_preferred_width (GtkWidget *widget,
1536 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1537 GdkRectangle range_rect;
1540 range = GTK_RANGE (widget);
1542 gtk_range_get_props (range,
1543 &slider_width, &stepper_size,
1544 &focus_width, &trough_border,
1545 &stepper_spacing, NULL,
1548 gtk_range_calc_request (range,
1549 slider_width, stepper_size,
1550 focus_width, trough_border, stepper_spacing,
1551 &range_rect, &border, NULL, NULL, NULL, NULL);
1553 *minimum = *natural = range_rect.width + border.left + border.right;
1557 gtk_range_get_preferred_height (GtkWidget *widget,
1562 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1563 GdkRectangle range_rect;
1566 range = GTK_RANGE (widget);
1568 gtk_range_get_props (range,
1569 &slider_width, &stepper_size,
1570 &focus_width, &trough_border,
1571 &stepper_spacing, NULL,
1574 gtk_range_calc_request (range,
1575 slider_width, stepper_size,
1576 focus_width, trough_border, stepper_spacing,
1577 &range_rect, &border, NULL, NULL, NULL, NULL);
1579 *minimum = *natural = range_rect.height + border.top + border.bottom;
1583 modify_allocation_for_window_grip (GtkWidget *widget,
1584 GtkAllocation *allocation)
1586 GtkRange *range = GTK_RANGE (widget);
1587 GtkRangePrivate *priv = range->priv;
1588 GtkWidget *window, *parent;
1589 GdkRectangle grip_rect;
1590 GdkRectangle translated_rect;
1594 window = gtk_widget_get_toplevel (widget);
1595 if (!GTK_IS_WINDOW (window))
1598 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1601 /* Get the area of the window's corner grip */
1602 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1607 /* Translate the stepper's area into window coords.
1608 * This is slightly tricky. We can't just use
1609 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1610 * since that translates wrt to the _current_ allocation
1611 * and will lead to alternating between overlap and nonoverlap
1612 * for successive allocations.
1613 * Therefore, we find the window-widget to whose window allocation
1614 * is relative, and translate from there upwards.
1617 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1620 parent = gtk_widget_get_parent (parent);
1623 if (parent == window)
1624 translated_rect = *allocation;
1627 gtk_widget_translate_coordinates (parent,
1629 allocation->x, allocation->y,
1631 translated_rect.x = x;
1632 translated_rect.y = y;
1633 translated_rect.width = allocation->width;
1634 translated_rect.height = allocation->height;
1637 /* If the stepper button intersects the window resize grip.. */
1638 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, &grip_rect))
1640 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1642 allocation->width -= grip_rect.width;
1643 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1644 allocation->x += grip_rect.width;
1648 allocation->height -= grip_rect.height;
1658 gtk_range_size_allocate (GtkWidget *widget,
1659 GtkAllocation *allocation)
1661 GtkRange *range = GTK_RANGE (widget);
1662 GtkRangePrivate *priv = range->priv;
1664 modify_allocation_for_window_grip (widget, allocation);
1665 gtk_widget_set_allocation (widget, allocation);
1667 priv->recalc_marks = TRUE;
1669 priv->need_recalc = TRUE;
1670 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1672 if (gtk_widget_get_realized (widget))
1673 gdk_window_move_resize (priv->event_window,
1674 allocation->x, allocation->y,
1675 allocation->width, allocation->height);
1679 resize_grip_visible_changed (GObject *object,
1683 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1687 gtk_range_hierarchy_changed (GtkWidget *widget,
1688 GtkWidget *previous_toplevel)
1692 if (previous_toplevel)
1693 g_signal_handlers_disconnect_by_func (previous_toplevel,
1694 G_CALLBACK (resize_grip_visible_changed),
1696 window = gtk_widget_get_toplevel (widget);
1697 if (gtk_widget_is_toplevel (window))
1698 g_signal_connect (window, "notify::resize-grip-visible",
1699 G_CALLBACK (resize_grip_visible_changed), widget);
1703 gtk_range_realize (GtkWidget *widget)
1705 GtkAllocation allocation;
1706 GtkRange *range = GTK_RANGE (widget);
1707 GtkRangePrivate *priv = range->priv;
1709 GdkWindowAttr attributes;
1710 gint attributes_mask;
1712 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1714 gtk_widget_set_realized (widget, TRUE);
1716 window = gtk_widget_get_parent_window (widget);
1717 gtk_widget_set_window (widget, window);
1718 g_object_ref (window);
1720 gtk_widget_get_allocation (widget, &allocation);
1721 if (modify_allocation_for_window_grip (widget, &allocation))
1722 gtk_widget_set_allocation (widget, &allocation);
1724 attributes.window_type = GDK_WINDOW_CHILD;
1725 attributes.x = allocation.x;
1726 attributes.y = allocation.y;
1727 attributes.width = allocation.width;
1728 attributes.height = allocation.height;
1729 attributes.wclass = GDK_INPUT_ONLY;
1730 attributes.event_mask = gtk_widget_get_events (widget);
1731 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1732 GDK_BUTTON_RELEASE_MASK |
1733 GDK_ENTER_NOTIFY_MASK |
1734 GDK_LEAVE_NOTIFY_MASK |
1735 GDK_POINTER_MOTION_MASK |
1736 GDK_POINTER_MOTION_HINT_MASK);
1738 attributes_mask = GDK_WA_X | GDK_WA_Y;
1740 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1741 &attributes, attributes_mask);
1742 gdk_window_set_user_data (priv->event_window, range);
1746 gtk_range_unrealize (GtkWidget *widget)
1748 GtkRange *range = GTK_RANGE (widget);
1749 GtkRangePrivate *priv = range->priv;
1751 gtk_range_remove_step_timer (range);
1753 gdk_window_set_user_data (priv->event_window, NULL);
1754 gdk_window_destroy (priv->event_window);
1755 priv->event_window = NULL;
1757 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1761 gtk_range_map (GtkWidget *widget)
1763 GtkRange *range = GTK_RANGE (widget);
1764 GtkRangePrivate *priv = range->priv;
1766 gdk_window_show (priv->event_window);
1768 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1772 gtk_range_unmap (GtkWidget *widget)
1774 GtkRange *range = GTK_RANGE (widget);
1775 GtkRangePrivate *priv = range->priv;
1777 stop_scrolling (range);
1779 gdk_window_hide (priv->event_window);
1781 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1785 _gtk_range_update_context_for_stepper (GtkRange *range,
1786 GtkStyleContext *context,
1789 GtkRangePrivate *priv = range->priv;
1790 GtkJunctionSides sides = 0;
1791 gboolean vertical, is_rtl;
1793 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1794 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1796 /* Take junction sides from what's been
1797 * previously set to the widget itself
1799 sides = gtk_style_context_get_junction_sides (context);
1802 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1804 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1810 sides |= GTK_JUNCTION_BOTTOM;
1812 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1815 if (priv->has_stepper_a)
1818 sides |= GTK_JUNCTION_TOP;
1820 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1824 sides |= GTK_JUNCTION_BOTTOM;
1826 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1829 if (priv->has_stepper_d)
1832 sides |= GTK_JUNCTION_BOTTOM;
1834 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1838 sides |= GTK_JUNCTION_TOP;
1840 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1844 sides |= GTK_JUNCTION_TOP;
1846 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1850 gtk_style_context_set_junction_sides (context, sides);
1854 draw_stepper (GtkRange *range,
1857 GtkArrowType arrow_type,
1859 gboolean prelighted,
1860 GtkStateFlags state)
1862 GtkRangePrivate *priv = range->priv;
1863 GtkAllocation allocation;
1864 GtkStyleContext *context;
1865 GtkWidget *widget = GTK_WIDGET (range);
1866 gfloat arrow_scaling;
1870 gdouble arrow_size, angle;
1871 gboolean arrow_sensitive;
1876 rect = &priv->stepper_a;
1879 rect = &priv->stepper_b;
1882 rect = &priv->stepper_c;
1885 rect = &priv->stepper_d;
1888 g_assert_not_reached ();
1891 arrow_sensitive = TRUE;
1893 gtk_widget_get_allocation (widget, &allocation);
1895 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1896 arrow_type == GTK_ARROW_RIGHT)) ||
1897 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1898 arrow_type == GTK_ARROW_LEFT)))
1900 arrow_sensitive = priv->upper_sensitive;
1904 arrow_sensitive = priv->lower_sensitive;
1907 state &= ~(GTK_STATE_FLAG_ACTIVE | GTK_STATE_FLAG_PRELIGHT);
1909 if ((state & GTK_STATE_FLAG_INSENSITIVE) || !arrow_sensitive)
1911 state |= GTK_STATE_FLAG_INSENSITIVE;
1916 state |= GTK_STATE_FLAG_ACTIVE;
1918 state |= GTK_STATE_FLAG_PRELIGHT;
1921 context = gtk_widget_get_style_context (widget);
1923 gtk_style_context_save (context);
1925 /* don't set juction sides on scrollbar steppers */
1926 if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_SCROLLBAR))
1927 gtk_style_context_set_junction_sides (context, GTK_JUNCTION_NONE);
1929 _gtk_range_update_context_for_stepper (range, context, stepper);
1931 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1932 gtk_style_context_set_state (context, state);
1936 case GTK_ARROW_RIGHT:
1937 gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
1939 case GTK_ARROW_DOWN:
1940 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
1942 case GTK_ARROW_LEFT:
1943 gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
1947 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
1951 gtk_render_background (context, cr,
1953 rect->width, rect->height);
1954 gtk_render_frame (context, cr,
1956 rect->width, rect->height);
1958 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1960 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1961 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1962 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1964 if (clicked && arrow_sensitive)
1966 gint arrow_displacement_x;
1967 gint arrow_displacement_y;
1969 gtk_range_get_props (GTK_RANGE (widget),
1970 NULL, NULL, NULL, NULL, NULL, NULL,
1971 &arrow_displacement_x, &arrow_displacement_y);
1973 arrow_x += arrow_displacement_x;
1974 arrow_y += arrow_displacement_y;
1979 case GTK_ARROW_RIGHT:
1982 case GTK_ARROW_DOWN:
1985 case GTK_ARROW_LEFT:
1986 angle = 3 * (G_PI / 2);
1994 gtk_render_arrow (context, cr,
1999 gtk_style_context_restore (context);
2003 gtk_range_draw (GtkWidget *widget,
2006 GtkRange *range = GTK_RANGE (widget);
2007 GtkRangePrivate *priv = range->priv;
2008 GtkStateFlags widget_state;
2009 gint focus_line_width = 0;
2010 gint focus_padding = 0;
2011 gboolean touchscreen;
2012 gboolean draw_trough = TRUE;
2013 GtkStyleContext *context;
2015 context = gtk_widget_get_style_context (widget);
2016 g_object_get (gtk_widget_get_settings (widget),
2017 "gtk-touchscreen-mode", &touchscreen,
2020 if (GTK_IS_SCALE (widget) &&
2021 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
2022 draw_trough = FALSE;
2024 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
2025 gtk_widget_style_get (GTK_WIDGET (range),
2026 "focus-line-width", &focus_line_width,
2027 "focus-padding", &focus_padding,
2030 /* we're now exposing, so there's no need to force early repaints */
2031 if (priv->repaint_id)
2032 g_source_remove (priv->repaint_id);
2033 priv->repaint_id = 0;
2035 gtk_range_calc_marks (range);
2036 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2038 widget_state = gtk_widget_get_state_flags (widget);
2040 /* Just to be confusing, we draw the trough for the whole
2041 * range rectangle, not the trough rectangle (the trough
2042 * rectangle is just for hit detection)
2045 gdk_cairo_rectangle (cr, &priv->range_rect);
2049 gint x = (priv->range_rect.x +
2050 focus_line_width + focus_padding);
2051 gint y = (priv->range_rect.y +
2052 focus_line_width + focus_padding);
2053 gint width = (priv->range_rect.width -
2054 2 * (focus_line_width + focus_padding));
2055 gint height = (priv->range_rect.height -
2056 2 * (focus_line_width + focus_padding));
2057 gboolean trough_under_steppers;
2059 gint stepper_spacing;
2061 gtk_widget_style_get (GTK_WIDGET (range),
2062 "trough-under-steppers", &trough_under_steppers,
2063 "stepper-size", &stepper_size,
2064 "stepper-spacing", &stepper_spacing,
2067 if (!trough_under_steppers)
2072 if (priv->has_stepper_a)
2073 offset += stepper_size;
2075 if (priv->has_stepper_b)
2076 offset += stepper_size;
2080 if (priv->has_stepper_c)
2081 shorter += stepper_size;
2083 if (priv->has_stepper_d)
2084 shorter += stepper_size;
2086 if (priv->has_stepper_a || priv->has_stepper_b)
2088 offset += stepper_spacing;
2089 shorter += stepper_spacing;
2092 if (priv->has_stepper_c || priv->has_stepper_d)
2094 shorter += stepper_spacing;
2097 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2109 gtk_style_context_save (context);
2110 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2114 if (!priv->has_origin)
2116 gtk_render_background (context, cr,
2117 x, y, width, height);
2119 gtk_render_frame (context, cr,
2120 x, y, width, height);
2124 gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
2126 gint trough_change_pos_x = width;
2127 gint trough_change_pos_y = height;
2129 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2130 trough_change_pos_x = (priv->slider.x +
2131 priv->slider.width / 2 -
2134 trough_change_pos_y = (priv->slider.y +
2135 priv->slider.height / 2 -
2138 gtk_style_context_save (context);
2139 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2141 gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
2144 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2147 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
2149 gtk_render_background (context, cr, x, y,
2150 trough_change_pos_x,
2151 trough_change_pos_y);
2153 gtk_render_frame (context, cr, x, y,
2154 trough_change_pos_x,
2155 trough_change_pos_y);
2157 gtk_style_context_restore (context);
2159 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2160 trough_change_pos_y = 0;
2162 trough_change_pos_x = 0;
2164 gtk_style_context_save (context);
2165 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2167 gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
2170 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2174 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
2175 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2178 gtk_render_background (context, cr,
2179 x + trough_change_pos_x, y + trough_change_pos_y,
2180 width - trough_change_pos_x,
2181 height - trough_change_pos_y);
2183 gtk_render_frame (context, cr,
2184 x + trough_change_pos_x, y + trough_change_pos_y,
2185 width - trough_change_pos_x,
2186 height - trough_change_pos_y);
2188 gtk_style_context_restore (context);
2193 gtk_render_background (context, cr,
2194 x, y, width, height);
2195 gtk_render_frame (context, cr,
2196 x, y, width, height);
2199 gtk_style_context_restore (context);
2201 if (priv->show_fill_level &&
2202 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2203 gtk_adjustment_get_lower (priv->adjustment) != 0)
2205 gdouble fill_level = priv->fill_level;
2208 gint fill_width = width;
2209 gint fill_height = height;
2211 gtk_style_context_save (context);
2212 gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
2214 fill_level = CLAMP (fill_level, gtk_adjustment_get_lower (priv->adjustment),
2215 gtk_adjustment_get_upper (priv->adjustment) -
2216 gtk_adjustment_get_page_size (priv->adjustment));
2218 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2220 fill_x = priv->trough.x;
2221 fill_width = (priv->slider.width +
2222 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2223 (gtk_adjustment_get_upper (priv->adjustment) -
2224 gtk_adjustment_get_lower (priv->adjustment) -
2225 gtk_adjustment_get_page_size (priv->adjustment)) *
2226 (priv->trough.width -
2227 priv->slider.width));
2229 if (should_invert (range))
2230 fill_x += priv->trough.width - fill_width;
2234 fill_y = priv->trough.y;
2235 fill_height = (priv->slider.height +
2236 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2237 (gtk_adjustment_get_upper (priv->adjustment) -
2238 gtk_adjustment_get_lower (priv->adjustment) -
2239 gtk_adjustment_get_page_size (priv->adjustment)) *
2240 (priv->trough.height -
2241 priv->slider.height));
2243 if (should_invert (range))
2244 fill_y += priv->trough.height - fill_height;
2248 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2249 fill_detail = "trough-fill-level-full";
2251 fill_detail = "trough-fill-level";
2254 gtk_render_activity (context, cr,
2256 fill_width, fill_height);
2258 gtk_style_context_restore (context);
2261 if (!(widget_state & GTK_STATE_FLAG_INSENSITIVE) && gtk_widget_has_visible_focus (widget))
2263 gtk_render_focus (context, cr,
2266 priv->range_rect.width,
2267 priv->range_rect.height);
2275 GtkStateFlags state = widget_state;
2277 state &= ~(GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_ACTIVE);
2279 if (!touchscreen && priv->mouse_location == MOUSE_SLIDER && !(state & GTK_STATE_FLAG_INSENSITIVE))
2280 state |= GTK_STATE_FLAG_PRELIGHT;
2282 if (priv->grab_location == MOUSE_SLIDER)
2283 state |= GTK_STATE_FLAG_ACTIVE;
2286 gdk_cairo_rectangle (cr, &priv->slider);
2289 gtk_style_context_save (context);
2290 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2291 gtk_style_context_set_state (context, state);
2293 gtk_render_slider (context, cr,
2297 priv->slider.height,
2300 gtk_style_context_restore (context);
2305 if (priv->has_stepper_a)
2306 draw_stepper (range, STEPPER_A, cr,
2307 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2308 priv->grab_location == MOUSE_STEPPER_A,
2309 !touchscreen && priv->mouse_location == MOUSE_STEPPER_A,
2312 if (priv->has_stepper_b)
2313 draw_stepper (range, STEPPER_B, cr,
2314 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2315 priv->grab_location == MOUSE_STEPPER_B,
2316 !touchscreen && priv->mouse_location == MOUSE_STEPPER_B,
2319 if (priv->has_stepper_c)
2320 draw_stepper (range, STEPPER_C, cr,
2321 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2322 priv->grab_location == MOUSE_STEPPER_C,
2323 !touchscreen && priv->mouse_location == MOUSE_STEPPER_C,
2326 if (priv->has_stepper_d)
2327 draw_stepper (range, STEPPER_D, cr,
2328 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2329 priv->grab_location == MOUSE_STEPPER_D,
2330 !touchscreen && priv->mouse_location == MOUSE_STEPPER_D,
2337 range_grab_add (GtkRange *range,
2339 MouseLocation location,
2342 GtkRangePrivate *priv = range->priv;
2344 if (device == priv->grab_device)
2347 if (priv->grab_device != NULL)
2349 g_warning ("GtkRange already had a grab device, releasing device grab");
2350 gtk_device_grab_remove (GTK_WIDGET (range), priv->grab_device);
2353 /* we don't actually gdk_grab, since a button is down */
2354 gtk_device_grab_add (GTK_WIDGET (range), device, TRUE);
2356 priv->grab_location = location;
2357 priv->grab_button = button;
2358 priv->grab_device = device;
2360 if (gtk_range_update_mouse_location (range))
2361 gtk_widget_queue_draw (GTK_WIDGET (range));
2365 range_grab_remove (GtkRange *range)
2367 GtkRangePrivate *priv = range->priv;
2368 MouseLocation location;
2370 if (priv->grab_device)
2372 gtk_device_grab_remove (GTK_WIDGET (range),
2374 priv->grab_device = NULL;
2377 location = priv->grab_location;
2378 priv->grab_location = MOUSE_OUTSIDE;
2379 priv->grab_button = 0;
2381 if (gtk_range_update_mouse_location (range) ||
2382 location != MOUSE_OUTSIDE)
2383 gtk_widget_queue_draw (GTK_WIDGET (range));
2386 static GtkScrollType
2387 range_get_scroll_for_grab (GtkRange *range)
2389 GtkRangePrivate *priv = range->priv;
2392 invert = should_invert (range);
2393 switch (priv->grab_location)
2395 /* Backward stepper */
2396 case MOUSE_STEPPER_A:
2397 case MOUSE_STEPPER_C:
2398 switch (priv->grab_button)
2401 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2404 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2407 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2412 /* Forward stepper */
2413 case MOUSE_STEPPER_B:
2414 case MOUSE_STEPPER_D:
2415 switch (priv->grab_button)
2418 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2421 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2424 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2432 if (priv->trough_click_forward)
2433 return GTK_SCROLL_PAGE_FORWARD;
2435 return GTK_SCROLL_PAGE_BACKWARD;
2445 return GTK_SCROLL_NONE;
2449 coord_to_value (GtkRange *range,
2452 GtkRangePrivate *priv = range->priv;
2459 gint trough_under_steppers;
2461 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2463 trough_length = priv->trough.height;
2464 trough_start = priv->trough.y;
2465 slider_length = priv->slider.height;
2469 trough_length = priv->trough.width;
2470 trough_start = priv->trough.x;
2471 slider_length = priv->slider.width;
2474 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2475 &trough_under_steppers, NULL, NULL);
2477 if (! trough_under_steppers)
2479 trough_start += trough_border;
2480 trough_length -= 2 * trough_border;
2483 if (trough_length == slider_length)
2486 frac = (MAX (0, coord - trough_start) /
2487 (gdouble) (trough_length - slider_length));
2489 if (should_invert (range))
2492 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2493 gtk_adjustment_get_lower (priv->adjustment) -
2494 gtk_adjustment_get_page_size (priv->adjustment));
2500 gtk_range_key_press (GtkWidget *widget,
2504 GtkRange *range = GTK_RANGE (widget);
2505 GtkRangePrivate *priv = range->priv;
2507 device = gdk_event_get_device ((GdkEvent *) event);
2508 device = gdk_device_get_associated_device (device);
2510 if (device == priv->grab_device &&
2511 event->keyval == GDK_KEY_Escape &&
2512 priv->grab_location != MOUSE_OUTSIDE)
2514 stop_scrolling (range);
2516 update_slider_position (range,
2517 priv->slide_initial_coordinate,
2518 priv->slide_initial_coordinate);
2523 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2527 gtk_range_button_press (GtkWidget *widget,
2528 GdkEventButton *event)
2530 GtkRange *range = GTK_RANGE (widget);
2531 GtkRangePrivate *priv = range->priv;
2534 if (!gtk_widget_has_focus (widget))
2535 gtk_widget_grab_focus (widget);
2537 /* ignore presses when we're already doing something else. */
2538 if (priv->grab_location != MOUSE_OUTSIDE)
2541 device = gdk_event_get_device ((GdkEvent *) event);
2542 priv->mouse_x = event->x;
2543 priv->mouse_y = event->y;
2545 if (gtk_range_update_mouse_location (range))
2546 gtk_widget_queue_draw (widget);
2548 if (priv->mouse_location == MOUSE_TROUGH &&
2551 /* button 1 steps by page increment, as with button 2 on a stepper
2553 GtkScrollType scroll;
2554 gdouble click_value;
2556 click_value = coord_to_value (range,
2557 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2558 event->y : event->x);
2560 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2561 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2563 scroll = range_get_scroll_for_grab (range);
2565 gtk_range_add_step_timer (range, scroll);
2569 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2570 priv->mouse_location == MOUSE_STEPPER_B ||
2571 priv->mouse_location == MOUSE_STEPPER_C ||
2572 priv->mouse_location == MOUSE_STEPPER_D) &&
2573 (event->button == 1 || event->button == 2 || event->button == 3))
2575 GtkAllocation allocation;
2576 GdkRectangle *stepper_area;
2577 GtkScrollType scroll;
2579 range_grab_add (range, device, priv->mouse_location, event->button);
2581 gtk_widget_get_allocation (widget, &allocation);
2582 stepper_area = get_area (range, priv->mouse_location);
2584 gtk_widget_queue_draw_area (widget,
2585 allocation.x + stepper_area->x,
2586 allocation.y + stepper_area->y,
2587 stepper_area->width,
2588 stepper_area->height);
2590 scroll = range_get_scroll_for_grab (range);
2591 if (scroll != GTK_SCROLL_NONE)
2592 gtk_range_add_step_timer (range, scroll);
2596 else if ((priv->mouse_location == MOUSE_TROUGH &&
2597 event->button == 2) ||
2598 priv->mouse_location == MOUSE_SLIDER)
2600 gboolean need_value_update = FALSE;
2602 /* Any button can be used to drag the slider, but you can start
2603 * dragging the slider with a trough click using button 2;
2604 * On button 2 press, we warp the slider to mouse position,
2605 * then begin the slider drag.
2607 if (event->button == 2)
2609 gdouble slider_low_value, slider_high_value, new_value;
2612 coord_to_value (range,
2613 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2614 event->y : event->x);
2616 coord_to_value (range,
2617 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2618 event->y - priv->slider.height :
2619 event->x - priv->slider.width);
2621 /* compute new value for warped slider */
2622 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2624 /* recalc slider, so we can set slide_initial_slider_position
2627 priv->need_recalc = TRUE;
2628 gtk_range_calc_layout (range, new_value);
2630 /* defer adjustment updates to update_slider_position() in order
2631 * to keep pixel quantisation
2633 need_value_update = TRUE;
2636 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2638 priv->slide_initial_slider_position = priv->slider.y;
2639 priv->slide_initial_coordinate = event->y;
2643 priv->slide_initial_slider_position = priv->slider.x;
2644 priv->slide_initial_coordinate = event->x;
2647 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2649 gtk_widget_queue_draw (widget);
2651 if (need_value_update)
2652 update_slider_position (range, event->x, event->y);
2660 /* During a slide, move the slider as required given new mouse position */
2662 update_slider_position (GtkRange *range,
2666 GtkRangePrivate *priv = range->priv;
2676 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2677 delta = mouse_y - priv->slide_initial_coordinate;
2679 delta = mouse_x - priv->slide_initial_coordinate;
2681 c = priv->slide_initial_slider_position + delta;
2683 new_value = coord_to_value (range, c);
2684 next_value = coord_to_value (range, c + 1);
2685 mark_delta = fabs (next_value - new_value);
2687 for (i = 0; i < priv->n_marks; i++)
2689 mark_value = priv->marks[i];
2691 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2693 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2695 new_value = mark_value;
2701 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2706 stop_scrolling (GtkRange *range)
2708 range_grab_remove (range);
2709 gtk_range_remove_step_timer (range);
2713 gtk_range_grab_broken (GtkWidget *widget,
2714 GdkEventGrabBroken *event)
2716 GtkRange *range = GTK_RANGE (widget);
2717 GtkRangePrivate *priv = range->priv;
2720 device = gdk_event_get_device ((GdkEvent *) event);
2722 if (device == priv->grab_device &&
2723 priv->grab_location != MOUSE_OUTSIDE)
2725 if (priv->grab_location == MOUSE_SLIDER)
2726 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2728 stop_scrolling (range);
2737 gtk_range_button_release (GtkWidget *widget,
2738 GdkEventButton *event)
2740 GtkRange *range = GTK_RANGE (widget);
2741 GtkRangePrivate *priv = range->priv;
2744 if (event->window == priv->event_window)
2746 priv->mouse_x = event->x;
2747 priv->mouse_y = event->y;
2751 gdk_window_get_device_position (priv->event_window,
2758 device = gdk_event_get_device ((GdkEvent *) event);
2760 if (priv->grab_device == device &&
2761 priv->grab_button == event->button)
2763 if (priv->grab_location == MOUSE_SLIDER)
2764 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2766 stop_scrolling (range);
2775 * _gtk_range_get_wheel_delta:
2776 * @range: a #GtkRange
2777 * @direction: A #GdkScrollDirection
2779 * Returns a good step value for the mouse wheel.
2781 * Return value: A good step value for the mouse wheel.
2786 _gtk_range_get_wheel_delta (GtkRange *range,
2787 GdkScrollDirection direction)
2789 GtkRangePrivate *priv = range->priv;
2790 GtkAdjustment *adjustment = priv->adjustment;
2793 if (GTK_IS_SCROLLBAR (range))
2794 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2796 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2798 if (direction == GDK_SCROLL_UP ||
2799 direction == GDK_SCROLL_LEFT)
2809 gtk_range_scroll_event (GtkWidget *widget,
2810 GdkEventScroll *event)
2812 GtkRange *range = GTK_RANGE (widget);
2813 GtkRangePrivate *priv = range->priv;
2815 if (gtk_widget_get_realized (widget))
2820 delta = _gtk_range_get_wheel_delta (range, event->direction);
2822 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2823 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2831 gtk_range_motion_notify (GtkWidget *widget,
2832 GdkEventMotion *event)
2834 GtkRange *range = GTK_RANGE (widget);
2835 GtkRangePrivate *priv = range->priv;
2837 gdk_event_request_motions (event);
2839 priv->mouse_x = event->x;
2840 priv->mouse_y = event->y;
2842 if (gtk_range_update_mouse_location (range))
2843 gtk_widget_queue_draw (widget);
2845 if (priv->grab_location == MOUSE_SLIDER)
2846 update_slider_position (range, event->x, event->y);
2848 /* We handled the event if the mouse was in the range_rect */
2849 return priv->mouse_location != MOUSE_OUTSIDE;
2853 gtk_range_enter_notify (GtkWidget *widget,
2854 GdkEventCrossing *event)
2856 GtkRange *range = GTK_RANGE (widget);
2857 GtkRangePrivate *priv = range->priv;
2859 priv->mouse_x = event->x;
2860 priv->mouse_y = event->y;
2862 if (gtk_range_update_mouse_location (range))
2863 gtk_widget_queue_draw (widget);
2869 gtk_range_leave_notify (GtkWidget *widget,
2870 GdkEventCrossing *event)
2872 GtkRange *range = GTK_RANGE (widget);
2873 GtkRangePrivate *priv = range->priv;
2878 if (gtk_range_update_mouse_location (range))
2879 gtk_widget_queue_draw (widget);
2885 gtk_range_grab_notify (GtkWidget *widget,
2886 gboolean was_grabbed)
2888 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2890 if (priv->grab_device &&
2891 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2892 stop_scrolling (GTK_RANGE (widget));
2896 gtk_range_state_flags_changed (GtkWidget *widget,
2897 GtkStateFlags previous_state)
2899 if (!gtk_widget_is_sensitive (widget))
2900 stop_scrolling (GTK_RANGE (widget));
2903 #define check_rectangle(rectangle1, rectangle2) \
2905 if (rectangle1.x != rectangle2.x) return TRUE; \
2906 if (rectangle1.y != rectangle2.y) return TRUE; \
2907 if (rectangle1.width != rectangle2.width) return TRUE; \
2908 if (rectangle1.height != rectangle2.height) return TRUE; \
2912 layout_changed (GtkRangePrivate *priv1,
2913 GtkRangePrivate *priv2)
2915 check_rectangle (priv1->slider, priv2->slider);
2916 check_rectangle (priv1->trough, priv2->trough);
2917 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2918 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2919 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2920 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2922 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2923 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2929 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2932 GtkRange *range = GTK_RANGE (data);
2933 GtkRangePrivate *priv = range->priv;
2934 GtkRangePrivate priv_aux = *priv;
2936 priv->recalc_marks = TRUE;
2937 priv->need_recalc = TRUE;
2938 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2940 /* now check whether the layout changed */
2941 if (layout_changed (priv, &priv_aux))
2942 gtk_widget_queue_draw (GTK_WIDGET (range));
2944 /* Note that we don't round off to priv->round_digits here.
2945 * that's because it's really broken to change a value
2946 * in response to a change signal on that value; round_digits
2947 * is therefore defined to be a filter on what the GtkRange
2948 * can input into the adjustment, not a filter that the GtkRange
2949 * will enforce on the adjustment.
2954 force_repaint (gpointer data)
2956 GtkRange *range = GTK_RANGE (data);
2957 GtkRangePrivate *priv = range->priv;
2958 GtkWidget *widget = GTK_WIDGET (range);
2960 priv->repaint_id = 0;
2961 if (gtk_widget_is_drawable (widget))
2962 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2968 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2971 GtkRange *range = GTK_RANGE (data);
2972 GtkRangePrivate *priv = range->priv;
2973 GtkRangePrivate priv_aux = *priv;
2975 priv->need_recalc = TRUE;
2976 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2978 /* now check whether the layout changed */
2979 if (layout_changed (priv, &priv_aux) ||
2980 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2982 gtk_widget_queue_draw (GTK_WIDGET (range));
2983 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2984 if (!priv->repaint_id)
2985 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2990 /* Note that we don't round off to priv->round_digits here.
2991 * that's because it's really broken to change a value
2992 * in response to a change signal on that value; round_digits
2993 * is therefore defined to be a filter on what the GtkRange
2994 * can input into the adjustment, not a filter that the GtkRange
2995 * will enforce on the adjustment.
2998 g_signal_emit (range, signals[VALUE_CHANGED], 0);
3002 gtk_range_style_updated (GtkWidget *widget)
3004 GtkRange *range = GTK_RANGE (widget);
3005 GtkRangePrivate *priv = range->priv;
3007 priv->need_recalc = TRUE;
3009 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
3013 apply_marks (GtkRange *range,
3017 GtkRangePrivate *priv = range->priv;
3021 for (i = 0; i < priv->n_marks; i++)
3023 mark = priv->marks[i];
3024 if ((oldval < mark && mark < *newval) ||
3025 (oldval > mark && mark > *newval))
3034 step_back (GtkRange *range)
3036 GtkRangePrivate *priv = range->priv;
3040 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
3041 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3042 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3043 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
3047 step_forward (GtkRange *range)
3049 GtkRangePrivate *priv = range->priv;
3053 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
3054 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3055 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3056 GTK_SCROLL_STEP_FORWARD, newval, &handled);
3061 page_back (GtkRange *range)
3063 GtkRangePrivate *priv = range->priv;
3067 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3068 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3069 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3070 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3074 page_forward (GtkRange *range)
3076 GtkRangePrivate *priv = range->priv;
3080 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3081 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3082 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3083 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3087 scroll_begin (GtkRange *range)
3089 GtkRangePrivate *priv = range->priv;
3092 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3093 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3098 scroll_end (GtkRange *range)
3100 GtkRangePrivate *priv = range->priv;
3104 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3105 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3110 gtk_range_scroll (GtkRange *range,
3111 GtkScrollType scroll)
3113 GtkRangePrivate *priv = range->priv;
3114 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3118 case GTK_SCROLL_STEP_LEFT:
3119 if (should_invert (range))
3120 step_forward (range);
3125 case GTK_SCROLL_STEP_UP:
3126 if (should_invert (range))
3127 step_forward (range);
3132 case GTK_SCROLL_STEP_RIGHT:
3133 if (should_invert (range))
3136 step_forward (range);
3139 case GTK_SCROLL_STEP_DOWN:
3140 if (should_invert (range))
3143 step_forward (range);
3146 case GTK_SCROLL_STEP_BACKWARD:
3150 case GTK_SCROLL_STEP_FORWARD:
3151 step_forward (range);
3154 case GTK_SCROLL_PAGE_LEFT:
3155 if (should_invert (range))
3156 page_forward (range);
3161 case GTK_SCROLL_PAGE_UP:
3162 if (should_invert (range))
3163 page_forward (range);
3168 case GTK_SCROLL_PAGE_RIGHT:
3169 if (should_invert (range))
3172 page_forward (range);
3175 case GTK_SCROLL_PAGE_DOWN:
3176 if (should_invert (range))
3179 page_forward (range);
3182 case GTK_SCROLL_PAGE_BACKWARD:
3186 case GTK_SCROLL_PAGE_FORWARD:
3187 page_forward (range);
3190 case GTK_SCROLL_START:
3191 scroll_begin (range);
3194 case GTK_SCROLL_END:
3198 case GTK_SCROLL_JUMP:
3199 /* Used by CList, range doesn't use it. */
3202 case GTK_SCROLL_NONE:
3206 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3210 gtk_range_move_slider (GtkRange *range,
3211 GtkScrollType scroll)
3213 GtkRangePrivate *priv = range->priv;
3214 gboolean cursor_only;
3216 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3217 "gtk-keynav-cursor-only", &cursor_only,
3222 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3224 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3226 if (scroll == GTK_SCROLL_STEP_UP ||
3227 scroll == GTK_SCROLL_STEP_DOWN)
3230 gtk_widget_child_focus (toplevel,
3231 scroll == GTK_SCROLL_STEP_UP ?
3232 GTK_DIR_UP : GTK_DIR_DOWN);
3238 if (scroll == GTK_SCROLL_STEP_LEFT ||
3239 scroll == GTK_SCROLL_STEP_RIGHT)
3242 gtk_widget_child_focus (toplevel,
3243 scroll == GTK_SCROLL_STEP_LEFT ?
3244 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3250 if (! gtk_range_scroll (range, scroll))
3251 gtk_widget_error_bell (GTK_WIDGET (range));
3255 gtk_range_get_props (GtkRange *range,
3259 gint *trough_border,
3260 gint *stepper_spacing,
3261 gboolean *trough_under_steppers,
3262 gint *arrow_displacement_x,
3263 gint *arrow_displacement_y)
3265 GtkWidget *widget = GTK_WIDGET (range);
3266 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3267 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3268 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3270 gtk_widget_style_get (widget,
3271 "slider-width", &tmp_slider_width,
3272 "trough-border", &tmp_trough_border,
3273 "stepper-size", &tmp_stepper_size,
3274 "stepper-spacing", &tmp_stepper_spacing,
3275 "trough-under-steppers", &tmp_trough_under_steppers,
3276 "arrow-displacement-x", &tmp_arrow_displacement_x,
3277 "arrow-displacement-y", &tmp_arrow_displacement_y,
3280 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
3282 gint focus_line_width;
3285 gtk_widget_style_get (GTK_WIDGET (range),
3286 "focus-line-width", &focus_line_width,
3287 "focus-padding", &focus_padding,
3290 tmp_focus_width = focus_line_width + focus_padding;
3294 tmp_focus_width = 0;
3298 *slider_width = tmp_slider_width;
3301 *focus_width = tmp_focus_width;
3304 *trough_border = tmp_trough_border;
3307 *stepper_size = tmp_stepper_size;
3309 if (stepper_spacing)
3310 *stepper_spacing = tmp_stepper_spacing;
3312 if (trough_under_steppers)
3313 *trough_under_steppers = tmp_trough_under_steppers;
3315 if (arrow_displacement_x)
3316 *arrow_displacement_x = tmp_arrow_displacement_x;
3318 if (arrow_displacement_y)
3319 *arrow_displacement_y = tmp_arrow_displacement_y;
3322 #define POINT_IN_RECT(xcoord, ycoord, rect) \
3323 ((xcoord) >= (rect).x && \
3324 (xcoord) < ((rect).x + (rect).width) && \
3325 (ycoord) >= (rect).y && \
3326 (ycoord) < ((rect).y + (rect).height))
3328 /* Update mouse location, return TRUE if it changes */
3330 gtk_range_update_mouse_location (GtkRange *range)
3332 GtkRangePrivate *priv = range->priv;
3333 GtkAllocation allocation;
3336 GtkWidget *widget = GTK_WIDGET (range);
3338 old = priv->mouse_location;
3343 gtk_widget_get_allocation (widget, &allocation);
3345 if (priv->grab_location != MOUSE_OUTSIDE)
3346 priv->mouse_location = priv->grab_location;
3347 else if (POINT_IN_RECT (x, y, priv->stepper_a))
3348 priv->mouse_location = MOUSE_STEPPER_A;
3349 else if (POINT_IN_RECT (x, y, priv->stepper_b))
3350 priv->mouse_location = MOUSE_STEPPER_B;
3351 else if (POINT_IN_RECT (x, y, priv->stepper_c))
3352 priv->mouse_location = MOUSE_STEPPER_C;
3353 else if (POINT_IN_RECT (x, y, priv->stepper_d))
3354 priv->mouse_location = MOUSE_STEPPER_D;
3355 else if (POINT_IN_RECT (x, y, priv->slider))
3356 priv->mouse_location = MOUSE_SLIDER;
3357 else if (POINT_IN_RECT (x, y, priv->trough))
3358 priv->mouse_location = MOUSE_TROUGH;
3359 else if (POINT_IN_RECT (x, y, allocation))
3360 priv->mouse_location = MOUSE_WIDGET;
3362 priv->mouse_location = MOUSE_OUTSIDE;
3364 return old != priv->mouse_location;
3367 /* Clamp rect, border inside widget->allocation, such that we prefer
3368 * to take space from border not rect in all directions, and prefer to
3369 * give space to border over rect in one direction.
3372 clamp_dimensions (GtkWidget *widget,
3375 gboolean border_expands_horizontally)
3377 GtkAllocation allocation;
3378 gint extra, shortage;
3380 g_return_if_fail (rect->x == 0);
3381 g_return_if_fail (rect->y == 0);
3382 g_return_if_fail (rect->width >= 0);
3383 g_return_if_fail (rect->height >= 0);
3385 gtk_widget_get_allocation (widget, &allocation);
3389 extra = allocation.width - border->left - border->right - rect->width;
3392 if (border_expands_horizontally)
3394 border->left += extra / 2;
3395 border->right += extra / 2 + extra % 2;
3399 rect->width += extra;
3403 /* See if we can fit rect, if not kill the border */
3404 shortage = rect->width - allocation.width;
3407 rect->width = allocation.width;
3408 /* lose the border */
3414 /* See if we can fit rect with borders */
3415 shortage = rect->width + border->left + border->right - allocation.width;
3418 /* Shrink borders */
3419 border->left -= shortage / 2;
3420 border->right -= shortage / 2 + shortage % 2;
3426 extra = allocation.height - border->top - border->bottom - rect->height;
3429 if (border_expands_horizontally)
3431 /* don't expand border vertically */
3432 rect->height += extra;
3436 border->top += extra / 2;
3437 border->bottom += extra / 2 + extra % 2;
3441 /* See if we can fit rect, if not kill the border */
3442 shortage = rect->height - allocation.height;
3445 rect->height = allocation.height;
3446 /* lose the border */
3452 /* See if we can fit rect with borders */
3453 shortage = rect->height + border->top + border->bottom - allocation.height;
3456 /* Shrink borders */
3457 border->top -= shortage / 2;
3458 border->bottom -= shortage / 2 + shortage % 2;
3464 gtk_range_calc_request (GtkRange *range,
3469 gint stepper_spacing,
3470 GdkRectangle *range_rect,
3473 gboolean *has_steppers_ab,
3474 gboolean *has_steppers_cd,
3475 gint *slider_length_p)
3477 GtkRangePrivate *priv = range->priv;
3488 if (GTK_RANGE_GET_CLASS (range)->get_range_border)
3489 GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
3494 if (priv->has_stepper_a)
3496 if (priv->has_stepper_b)
3498 if (priv->has_stepper_c)
3500 if (priv->has_stepper_d)
3503 n_steppers = n_steppers_ab + n_steppers_cd;
3505 slider_length = priv->min_slider_size;
3510 /* We never expand to fill available space in the small dimension
3511 * (i.e. vertical scrollbars are always a fixed width)
3513 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3515 range_rect->width = (focus_width + trough_border) * 2 + slider_width;
3516 range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3518 if (n_steppers_ab > 0)
3519 range_rect->height += stepper_spacing;
3521 if (n_steppers_cd > 0)
3522 range_rect->height += stepper_spacing;
3526 range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3527 range_rect->height = (focus_width + trough_border) * 2 + slider_width;
3529 if (n_steppers_ab > 0)
3530 range_rect->width += stepper_spacing;
3532 if (n_steppers_cd > 0)
3533 range_rect->width += stepper_spacing;
3537 *n_steppers_p = n_steppers;
3539 if (has_steppers_ab)
3540 *has_steppers_ab = (n_steppers_ab > 0);
3542 if (has_steppers_cd)
3543 *has_steppers_cd = (n_steppers_cd > 0);
3545 if (slider_length_p)
3546 *slider_length_p = slider_length;
3550 gtk_range_calc_layout (GtkRange *range,
3551 gdouble adjustment_value)
3553 GtkRangePrivate *priv = range->priv;
3554 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
3558 gboolean has_steppers_ab;
3559 gboolean has_steppers_cd;
3560 gboolean trough_under_steppers;
3561 GdkRectangle range_rect;
3564 if (!priv->need_recalc)
3567 /* If we have a too-small allocation, we prefer the steppers over
3568 * the trough/slider, probably the steppers are a more useful
3569 * feature in small spaces.
3571 * Also, we prefer to draw the range itself rather than the border
3572 * areas if there's a conflict, since the borders will be decoration
3573 * not controls. Though this depends on subclasses cooperating by
3574 * not drawing on priv->range_rect.
3577 widget = GTK_WIDGET (range);
3579 gtk_range_get_props (range,
3580 &slider_width, &stepper_size,
3581 &focus_width, &trough_border,
3582 &stepper_spacing, &trough_under_steppers,
3585 gtk_range_calc_request (range,
3586 slider_width, stepper_size,
3587 focus_width, trough_border, stepper_spacing,
3588 &range_rect, &border, &n_steppers,
3589 &has_steppers_ab, &has_steppers_cd, &slider_length);
3591 /* We never expand to fill available space in the small dimension
3592 * (i.e. vertical scrollbars are always a fixed width)
3594 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3596 clamp_dimensions (widget, &range_rect, &border, TRUE);
3600 clamp_dimensions (widget, &range_rect, &border, FALSE);
3603 range_rect.x = border.left;
3604 range_rect.y = border.top;
3606 priv->range_rect = range_rect;
3608 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3610 gint stepper_width, stepper_height;
3612 /* Steppers are the width of the range, and stepper_size in
3613 * height, or if we don't have enough height, divided equally
3614 * among available space.
3616 stepper_width = range_rect.width - focus_width * 2;
3618 if (trough_under_steppers)
3619 stepper_width -= trough_border * 2;
3621 if (stepper_width < 1)
3622 stepper_width = range_rect.width; /* screw the trough border */
3624 if (n_steppers == 0)
3625 stepper_height = 0; /* avoid divide by n_steppers */
3627 stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
3631 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3632 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3634 if (priv->has_stepper_a)
3636 priv->stepper_a.width = stepper_width;
3637 priv->stepper_a.height = stepper_height;
3641 priv->stepper_a.width = 0;
3642 priv->stepper_a.height = 0;
3647 priv->stepper_b.x = priv->stepper_a.x;
3648 priv->stepper_b.y = priv->stepper_a.y + priv->stepper_a.height;
3650 if (priv->has_stepper_b)
3652 priv->stepper_b.width = stepper_width;
3653 priv->stepper_b.height = stepper_height;
3657 priv->stepper_b.width = 0;
3658 priv->stepper_b.height = 0;
3663 if (priv->has_stepper_d)
3665 priv->stepper_d.width = stepper_width;
3666 priv->stepper_d.height = stepper_height;
3670 priv->stepper_d.width = 0;
3671 priv->stepper_d.height = 0;
3674 priv->stepper_d.x = priv->stepper_a.x;
3675 priv->stepper_d.y = range_rect.y + range_rect.height - priv->stepper_d.height - focus_width - trough_border * trough_under_steppers;
3679 if (priv->has_stepper_c)
3681 priv->stepper_c.width = stepper_width;
3682 priv->stepper_c.height = stepper_height;
3686 priv->stepper_c.width = 0;
3687 priv->stepper_c.height = 0;
3690 priv->stepper_c.x = priv->stepper_a.x;
3691 priv->stepper_c.y = priv->stepper_d.y - priv->stepper_c.height;
3693 /* Now the trough is the remaining space between steppers B and C,
3694 * if any, minus spacing
3696 priv->trough.x = range_rect.x;
3697 priv->trough.y = priv->stepper_b.y + priv->stepper_b.height + stepper_spacing * has_steppers_ab;
3698 priv->trough.width = range_rect.width;
3699 priv->trough.height = priv->stepper_c.y - priv->trough.y - stepper_spacing * has_steppers_cd;
3701 /* Slider fits into the trough, with stepper_spacing on either side,
3702 * and the size/position based on the adjustment or fixed, depending.
3704 priv->slider.x = priv->trough.x + focus_width + trough_border;
3705 priv->slider.width = priv->trough.width - (focus_width + trough_border) * 2;
3707 /* Compute slider position/length */
3709 gint y, bottom, top, height;
3711 top = priv->trough.y;
3712 bottom = priv->trough.y + priv->trough.height;
3714 if (! trough_under_steppers)
3716 top += trough_border;
3717 bottom -= trough_border;
3720 /* slider height is the fraction (page_size /
3721 * total_adjustment_range) times the trough height in pixels
3724 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3725 height = ((bottom - top) * (gtk_adjustment_get_page_size (priv->adjustment) /
3726 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3728 height = priv->min_slider_size;
3730 if (height < priv->min_slider_size ||
3731 priv->slider_size_fixed)
3732 height = priv->min_slider_size;
3734 height = MIN (height, priv->trough.height);
3738 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3739 y += (bottom - top - height) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3740 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3742 y = CLAMP (y, top, bottom);
3744 if (should_invert (range))
3745 y = bottom - (y - top + height);
3748 priv->slider.height = height;
3750 /* These are publically exported */
3751 priv->slider_start = priv->slider.y;
3752 priv->slider_end = priv->slider.y + priv->slider.height;
3757 gint stepper_width, stepper_height;
3759 /* Steppers are the height of the range, and stepper_size in
3760 * width, or if we don't have enough width, divided equally
3761 * among available space.
3763 stepper_height = range_rect.height + focus_width * 2;
3765 if (trough_under_steppers)
3766 stepper_height -= trough_border * 2;
3768 if (stepper_height < 1)
3769 stepper_height = range_rect.height; /* screw the trough border */
3771 if (n_steppers == 0)
3772 stepper_width = 0; /* avoid divide by n_steppers */
3774 stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
3778 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3779 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3781 if (priv->has_stepper_a)
3783 priv->stepper_a.width = stepper_width;
3784 priv->stepper_a.height = stepper_height;
3788 priv->stepper_a.width = 0;
3789 priv->stepper_a.height = 0;
3794 priv->stepper_b.x = priv->stepper_a.x + priv->stepper_a.width;
3795 priv->stepper_b.y = priv->stepper_a.y;
3797 if (priv->has_stepper_b)
3799 priv->stepper_b.width = stepper_width;
3800 priv->stepper_b.height = stepper_height;
3804 priv->stepper_b.width = 0;
3805 priv->stepper_b.height = 0;
3810 if (priv->has_stepper_d)
3812 priv->stepper_d.width = stepper_width;
3813 priv->stepper_d.height = stepper_height;
3817 priv->stepper_d.width = 0;
3818 priv->stepper_d.height = 0;
3821 priv->stepper_d.x = range_rect.x + range_rect.width - priv->stepper_d.width - focus_width - trough_border * trough_under_steppers;
3822 priv->stepper_d.y = priv->stepper_a.y;
3827 if (priv->has_stepper_c)
3829 priv->stepper_c.width = stepper_width;
3830 priv->stepper_c.height = stepper_height;
3834 priv->stepper_c.width = 0;
3835 priv->stepper_c.height = 0;
3838 priv->stepper_c.x = priv->stepper_d.x - priv->stepper_c.width;
3839 priv->stepper_c.y = priv->stepper_a.y;
3841 /* Now the trough is the remaining space between steppers B and C,
3844 priv->trough.x = priv->stepper_b.x + priv->stepper_b.width + stepper_spacing * has_steppers_ab;
3845 priv->trough.y = range_rect.y;
3847 priv->trough.width = priv->stepper_c.x - priv->trough.x - stepper_spacing * has_steppers_cd;
3848 priv->trough.height = range_rect.height;
3850 /* Slider fits into the trough, with stepper_spacing on either side,
3851 * and the size/position based on the adjustment or fixed, depending.
3853 priv->slider.y = priv->trough.y + focus_width + trough_border;
3854 priv->slider.height = priv->trough.height - (focus_width + trough_border) * 2;
3856 /* Compute slider position/length */
3858 gint x, left, right, width;
3860 left = priv->trough.x;
3861 right = priv->trough.x + priv->trough.width;
3863 if (! trough_under_steppers)
3865 left += trough_border;
3866 right -= trough_border;
3869 /* slider width is the fraction (page_size /
3870 * total_adjustment_range) times the trough width in pixels
3873 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3874 width = ((right - left) * (gtk_adjustment_get_page_size (priv->adjustment) /
3875 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3877 width = priv->min_slider_size;
3879 if (width < priv->min_slider_size ||
3880 priv->slider_size_fixed)
3881 width = priv->min_slider_size;
3883 width = MIN (width, priv->trough.width);
3887 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3888 x += (right - left - width) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3889 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3891 x = CLAMP (x, left, right);
3893 if (should_invert (range))
3894 x = right - (x - left + width);
3897 priv->slider.width = width;
3899 /* These are publically exported */
3900 priv->slider_start = priv->slider.x;
3901 priv->slider_end = priv->slider.x + priv->slider.width;
3905 gtk_range_update_mouse_location (range);
3907 switch (priv->upper_sensitivity)
3909 case GTK_SENSITIVITY_AUTO:
3910 priv->upper_sensitive =
3911 (gtk_adjustment_get_value (priv->adjustment) <
3912 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3915 case GTK_SENSITIVITY_ON:
3916 priv->upper_sensitive = TRUE;
3919 case GTK_SENSITIVITY_OFF:
3920 priv->upper_sensitive = FALSE;
3924 switch (priv->lower_sensitivity)
3926 case GTK_SENSITIVITY_AUTO:
3927 priv->lower_sensitive =
3928 (gtk_adjustment_get_value (priv->adjustment) > gtk_adjustment_get_lower (priv->adjustment));
3931 case GTK_SENSITIVITY_ON:
3932 priv->lower_sensitive = TRUE;
3935 case GTK_SENSITIVITY_OFF:
3936 priv->lower_sensitive = FALSE;
3941 static GdkRectangle*
3942 get_area (GtkRange *range,
3943 MouseLocation location)
3945 GtkRangePrivate *priv = range->priv;
3949 case MOUSE_STEPPER_A:
3950 return &priv->stepper_a;
3951 case MOUSE_STEPPER_B:
3952 return &priv->stepper_b;
3953 case MOUSE_STEPPER_C:
3954 return &priv->stepper_c;
3955 case MOUSE_STEPPER_D:
3956 return &priv->stepper_d;
3958 return &priv->trough;
3960 return &priv->slider;
3966 g_warning (G_STRLOC": bug");
3971 gtk_range_calc_marks (GtkRange *range)
3973 GtkRangePrivate *priv = range->priv;
3976 if (!priv->recalc_marks)
3979 priv->recalc_marks = FALSE;
3981 for (i = 0; i < priv->n_marks; i++)
3983 priv->need_recalc = TRUE;
3984 gtk_range_calc_layout (range, priv->marks[i]);
3985 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3986 priv->mark_pos[i] = priv->slider.x + priv->slider.width / 2;
3988 priv->mark_pos[i] = priv->slider.y + priv->slider.height / 2;
3991 priv->need_recalc = TRUE;
3995 gtk_range_real_change_value (GtkRange *range,
3996 GtkScrollType scroll,
3999 GtkRangePrivate *priv = range->priv;
4001 /* potentially adjust the bounds _before_ we clamp */
4002 g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
4004 if (priv->restrict_to_fill_level)
4005 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
4008 value = CLAMP (value, gtk_adjustment_get_lower (priv->adjustment),
4009 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
4011 if (priv->round_digits >= 0)
4016 i = priv->round_digits;
4021 value = floor ((value * power) + 0.5) / power;
4024 if (gtk_adjustment_get_value (priv->adjustment) != value)
4026 priv->need_recalc = TRUE;
4028 gtk_widget_queue_draw (GTK_WIDGET (range));
4030 gtk_adjustment_set_value (priv->adjustment, value);
4035 struct _GtkRangeStepTimer
4042 second_timeout (gpointer data)
4044 GtkRange *range = GTK_RANGE (data);
4045 GtkRangePrivate *priv = range->priv;
4047 gtk_range_scroll (range, priv->timer->step);
4053 initial_timeout (gpointer data)
4055 GtkRange *range = GTK_RANGE (data);
4056 GtkRangePrivate *priv = range->priv;
4057 GtkSettings *settings;
4060 settings = gtk_widget_get_settings (GTK_WIDGET (data));
4061 g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
4063 priv->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
4071 gtk_range_add_step_timer (GtkRange *range,
4074 GtkRangePrivate *priv = range->priv;
4075 GtkSettings *settings;
4078 g_return_if_fail (priv->timer == NULL);
4079 g_return_if_fail (step != GTK_SCROLL_NONE);
4081 settings = gtk_widget_get_settings (GTK_WIDGET (range));
4082 g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
4084 priv->timer = g_new (GtkRangeStepTimer, 1);
4086 priv->timer->timeout_id = gdk_threads_add_timeout (timeout,
4089 priv->timer->step = step;
4091 gtk_range_scroll (range, priv->timer->step);
4095 gtk_range_remove_step_timer (GtkRange *range)
4097 GtkRangePrivate *priv = range->priv;
4101 if (priv->timer->timeout_id != 0)
4102 g_source_remove (priv->timer->timeout_id);
4104 g_free (priv->timer);
4111 _gtk_range_set_has_origin (GtkRange *range,
4112 gboolean has_origin)
4114 range->priv->has_origin = has_origin;
4118 _gtk_range_get_has_origin (GtkRange *range)
4120 return range->priv->has_origin;
4124 _gtk_range_set_stop_values (GtkRange *range,
4128 GtkRangePrivate *priv = range->priv;
4131 g_free (priv->marks);
4132 priv->marks = g_new (gdouble, n_values);
4134 g_free (priv->mark_pos);
4135 priv->mark_pos = g_new (gint, n_values);
4137 priv->n_marks = n_values;
4139 for (i = 0; i < n_values; i++)
4140 priv->marks[i] = values[i];
4142 priv->recalc_marks = TRUE;
4146 _gtk_range_get_stop_positions (GtkRange *range,
4149 GtkRangePrivate *priv = range->priv;
4151 gtk_range_calc_marks (range);
4154 *values = g_memdup (priv->mark_pos, priv->n_marks * sizeof (gint));
4156 return priv->n_marks;
4160 * gtk_range_set_round_digits:
4161 * @range: a #GtkRange
4162 * @round_digits: the precision in digits, or -1
4164 * Sets the number of digits to round the value to when
4165 * it changes. See #GtkRange::change-value.
4170 gtk_range_set_round_digits (GtkRange *range,
4173 g_return_if_fail (GTK_IS_RANGE (range));
4174 g_return_if_fail (round_digits >= -1);
4176 range->priv->round_digits = round_digits;
4178 g_object_notify (G_OBJECT (range), "round-digits");
4182 * gtk_range_get_round_digits:
4183 * @range: a #GtkRange
4185 * Gets the number of digits to round the value to when
4186 * it changes. See #GtkRange::change-value.
4188 * Return value: the number of digits to round to
4193 gtk_range_get_round_digits (GtkRange *range)
4195 g_return_val_if_fail (GTK_IS_RANGE (range), -1);
4197 return range->priv->round_digits;
4201 _gtk_range_set_steppers (GtkRange *range,
4207 range->priv->has_stepper_a = has_a;
4208 range->priv->has_stepper_b = has_b;
4209 range->priv->has_stepper_c = has_c;
4210 range->priv->has_stepper_d = has_d;