1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 * Copyright (C) 2001 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2004. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
33 #include "gtkmainprivate.h"
34 #include "gtkmarshalers.h"
35 #include "gtkorientableprivate.h"
38 #include "gtkscrollbar.h"
39 #include "gtkwindow.h"
40 #include "gtkprivate.h"
42 #include "gtktypebuiltins.h"
46 * @Short_description: Base class for widgets which visualize an adjustment
49 * #GtkRange is the common base class for widgets which visualize an
50 * adjustment, e.g #GtkScale or #GtkScrollbar.
52 * Apart from signals for monitoring the parameters of the adjustment,
53 * #GtkRange provides properties and methods for influencing the sensitivity
54 * of the "steppers". It also provides properties and methods for setting a
55 * "fill level" on range widgets. See gtk_range_set_fill_level().
59 #define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
60 #define UPDATE_DELAY 300 /* Delay for queued update */
62 typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
72 MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
75 struct _GtkRangePrivate
77 MouseLocation mouse_location;
78 /* last mouse coords we got, or -1 if mouse is outside the range */
81 MouseLocation grab_location; /* "grabbed" mouse location, OUTSIDE for no grab */
83 GtkRangeStepTimer *timer;
85 GtkAdjustment *adjustment;
86 GtkSensitivityType lower_sensitivity;
87 GtkSensitivityType upper_sensitivity;
89 GdkDevice *grab_device;
90 GdkRectangle range_rect; /* Area of entire stepper + trough assembly in widget->window coords */
91 /* These are in widget->window coordinates */
92 GdkRectangle stepper_a;
93 GdkRectangle stepper_b;
94 GdkRectangle stepper_c;
95 GdkRectangle stepper_d;
96 GdkRectangle trough; /* The trough rectangle is the area the thumb can slide in, not the entire range_rect */
98 GdkWindow *event_window;
100 GQuark slider_detail_quark;
101 GQuark stepper_detail_quark[4];
103 GtkOrientation orientation;
109 gint min_slider_size;
111 gint round_digits; /* Round off value to this many digits, -1 for no rounding */
112 gint slide_initial_slider_position;
113 gint slide_initial_coordinate;
114 gint slider_start; /* Slider range along the long dimension, in widget->window coords */
119 /* Steppers are: < > ---- < >
122 guint has_stepper_a : 1;
123 guint has_stepper_b : 1;
124 guint has_stepper_c : 1;
125 guint has_stepper_d : 1;
129 guint need_recalc : 1;
130 guint recalc_marks : 1;
131 guint slider_size_fixed : 1;
132 guint trough_click_forward : 1; /* trough click was on the forward side of slider */
134 /* Stepper sensitivity */
135 guint lower_sensitive : 1;
136 guint upper_sensitive : 1;
139 guint show_fill_level : 1;
140 guint restrict_to_fill_level : 1;
142 guint grab_button : 8; /* 0 if none */
151 PROP_LOWER_STEPPER_SENSITIVITY,
152 PROP_UPPER_STEPPER_SENSITIVITY,
153 PROP_SHOW_FILL_LEVEL,
154 PROP_RESTRICT_TO_FILL_LEVEL,
174 static void gtk_range_set_property (GObject *object,
178 static void gtk_range_get_property (GObject *object,
182 static void gtk_range_destroy (GtkWidget *widget);
183 static void gtk_range_get_preferred_width
187 static void gtk_range_get_preferred_height
191 static void gtk_range_size_allocate (GtkWidget *widget,
192 GtkAllocation *allocation);
193 static void gtk_range_hierarchy_changed (GtkWidget *widget,
194 GtkWidget *previous_toplevel);
195 static void gtk_range_realize (GtkWidget *widget);
196 static void gtk_range_unrealize (GtkWidget *widget);
197 static void gtk_range_map (GtkWidget *widget);
198 static void gtk_range_unmap (GtkWidget *widget);
199 static gboolean gtk_range_draw (GtkWidget *widget,
201 static gboolean gtk_range_button_press (GtkWidget *widget,
202 GdkEventButton *event);
203 static gboolean gtk_range_button_release (GtkWidget *widget,
204 GdkEventButton *event);
205 static gboolean gtk_range_motion_notify (GtkWidget *widget,
206 GdkEventMotion *event);
207 static gboolean gtk_range_enter_notify (GtkWidget *widget,
208 GdkEventCrossing *event);
209 static gboolean gtk_range_leave_notify (GtkWidget *widget,
210 GdkEventCrossing *event);
211 static gboolean gtk_range_grab_broken (GtkWidget *widget,
212 GdkEventGrabBroken *event);
213 static void gtk_range_grab_notify (GtkWidget *widget,
214 gboolean was_grabbed);
215 static void gtk_range_state_flags_changed (GtkWidget *widget,
216 GtkStateFlags previous_state);
217 static gboolean gtk_range_scroll_event (GtkWidget *widget,
218 GdkEventScroll *event);
219 static void gtk_range_style_updated (GtkWidget *widget);
220 static void update_slider_position (GtkRange *range,
223 static void stop_scrolling (GtkRange *range);
224 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
225 GtkAllocation *allocation);
229 static void gtk_range_move_slider (GtkRange *range,
230 GtkScrollType scroll);
233 static gboolean gtk_range_scroll (GtkRange *range,
234 GtkScrollType scroll);
235 static gboolean gtk_range_update_mouse_location (GtkRange *range);
236 static void gtk_range_calc_layout (GtkRange *range,
237 gdouble adjustment_value);
238 static void gtk_range_calc_marks (GtkRange *range);
239 static void gtk_range_get_props (GtkRange *range,
244 gint *stepper_spacing,
245 gboolean *trough_under_steppers,
246 gint *arrow_displacement_x,
247 gint *arrow_displacement_y);
248 static void gtk_range_calc_request (GtkRange *range,
253 gint stepper_spacing,
254 GdkRectangle *range_rect,
257 gboolean *has_steppers_ab,
258 gboolean *has_steppers_cd,
259 gint *slider_length_p);
260 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
262 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
264 static void gtk_range_add_step_timer (GtkRange *range,
266 static void gtk_range_remove_step_timer (GtkRange *range);
267 static GdkRectangle* get_area (GtkRange *range,
268 MouseLocation location);
269 static gboolean gtk_range_real_change_value (GtkRange *range,
270 GtkScrollType scroll,
272 static gboolean gtk_range_key_press (GtkWidget *range,
276 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
277 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
280 static guint signals[LAST_SIGNAL];
284 gtk_range_class_init (GtkRangeClass *class)
286 GObjectClass *gobject_class;
287 GtkWidgetClass *widget_class;
289 gobject_class = G_OBJECT_CLASS (class);
290 widget_class = (GtkWidgetClass*) class;
292 gobject_class->set_property = gtk_range_set_property;
293 gobject_class->get_property = gtk_range_get_property;
295 widget_class->destroy = gtk_range_destroy;
296 widget_class->get_preferred_width = gtk_range_get_preferred_width;
297 widget_class->get_preferred_height = gtk_range_get_preferred_height;
298 widget_class->size_allocate = gtk_range_size_allocate;
299 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
300 widget_class->realize = gtk_range_realize;
301 widget_class->unrealize = gtk_range_unrealize;
302 widget_class->map = gtk_range_map;
303 widget_class->unmap = gtk_range_unmap;
304 widget_class->draw = gtk_range_draw;
305 widget_class->button_press_event = gtk_range_button_press;
306 widget_class->button_release_event = gtk_range_button_release;
307 widget_class->motion_notify_event = gtk_range_motion_notify;
308 widget_class->scroll_event = gtk_range_scroll_event;
309 widget_class->enter_notify_event = gtk_range_enter_notify;
310 widget_class->leave_notify_event = gtk_range_leave_notify;
311 widget_class->grab_broken_event = gtk_range_grab_broken;
312 widget_class->grab_notify = gtk_range_grab_notify;
313 widget_class->state_flags_changed = gtk_range_state_flags_changed;
314 widget_class->style_updated = gtk_range_style_updated;
315 widget_class->key_press_event = gtk_range_key_press;
317 class->move_slider = gtk_range_move_slider;
318 class->change_value = gtk_range_real_change_value;
320 class->slider_detail = "slider";
321 class->stepper_detail = "stepper";
324 * GtkRange::value-changed:
325 * @range: the #GtkRange that received the signal
327 * Emitted when the range value changes.
329 signals[VALUE_CHANGED] =
330 g_signal_new (I_("value-changed"),
331 G_TYPE_FROM_CLASS (gobject_class),
333 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
335 _gtk_marshal_VOID__VOID,
339 * GtkRange::adjust-bounds:
340 * @range: the #GtkRange that received the signal
341 * @value: the value before we clamp
343 * Emitted before clamping a value, to give the application a
344 * chance to adjust the bounds.
346 signals[ADJUST_BOUNDS] =
347 g_signal_new (I_("adjust-bounds"),
348 G_TYPE_FROM_CLASS (gobject_class),
350 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
352 _gtk_marshal_VOID__DOUBLE,
357 * GtkRange::move-slider:
358 * @range: the #GtkRange that received the signal
359 * @step: how to move the slider
361 * Virtual function that moves the slider. Used for keybindings.
363 signals[MOVE_SLIDER] =
364 g_signal_new (I_("move-slider"),
365 G_TYPE_FROM_CLASS (gobject_class),
366 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
367 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
369 _gtk_marshal_VOID__ENUM,
371 GTK_TYPE_SCROLL_TYPE);
374 * GtkRange::change-value:
375 * @range: the #GtkRange that received the signal
376 * @scroll: the type of scroll action that was performed
377 * @value: the new value resulting from the scroll action
378 * @returns: %TRUE to prevent other handlers from being invoked for the
379 * signal, %FALSE to propagate the signal further
381 * The #GtkRange::change-value signal is emitted when a scroll action is
382 * performed on a range. It allows an application to determine the
383 * type of scroll event that occurred and the resultant new value.
384 * The application can handle the event itself and return %TRUE to
385 * prevent further processing. Or, by returning %FALSE, it can pass
386 * the event to other handlers until the default GTK+ handler is
389 * The value parameter is unrounded. An application that overrides
390 * the GtkRange::change-value signal is responsible for clamping the
391 * value to the desired number of decimal digits; the default GTK+
392 * handler clamps the value based on #GtkRange:round-digits.
394 * It is not possible to use delayed update policies in an overridden
395 * #GtkRange::change-value handler.
399 signals[CHANGE_VALUE] =
400 g_signal_new (I_("change-value"),
401 G_TYPE_FROM_CLASS (gobject_class),
403 G_STRUCT_OFFSET (GtkRangeClass, change_value),
404 _gtk_boolean_handled_accumulator, NULL,
405 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
407 GTK_TYPE_SCROLL_TYPE,
410 g_object_class_override_property (gobject_class,
414 g_object_class_install_property (gobject_class,
416 g_param_spec_object ("adjustment",
418 P_("The GtkAdjustment that contains the current value of this range object"),
420 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
422 g_object_class_install_property (gobject_class,
424 g_param_spec_boolean ("inverted",
426 P_("Invert direction slider moves to increase range value"),
428 GTK_PARAM_READWRITE));
430 g_object_class_install_property (gobject_class,
431 PROP_LOWER_STEPPER_SENSITIVITY,
432 g_param_spec_enum ("lower-stepper-sensitivity",
433 P_("Lower stepper sensitivity"),
434 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
435 GTK_TYPE_SENSITIVITY_TYPE,
436 GTK_SENSITIVITY_AUTO,
437 GTK_PARAM_READWRITE));
439 g_object_class_install_property (gobject_class,
440 PROP_UPPER_STEPPER_SENSITIVITY,
441 g_param_spec_enum ("upper-stepper-sensitivity",
442 P_("Upper stepper sensitivity"),
443 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
444 GTK_TYPE_SENSITIVITY_TYPE,
445 GTK_SENSITIVITY_AUTO,
446 GTK_PARAM_READWRITE));
449 * GtkRange:show-fill-level:
451 * The show-fill-level property controls whether fill level indicator
452 * graphics are displayed on the trough. See
453 * gtk_range_set_show_fill_level().
457 g_object_class_install_property (gobject_class,
458 PROP_SHOW_FILL_LEVEL,
459 g_param_spec_boolean ("show-fill-level",
460 P_("Show Fill Level"),
461 P_("Whether to display a fill level indicator graphics on trough."),
463 GTK_PARAM_READWRITE));
466 * GtkRange:restrict-to-fill-level:
468 * The restrict-to-fill-level property controls whether slider
469 * movement is restricted to an upper boundary set by the
470 * fill level. See gtk_range_set_restrict_to_fill_level().
474 g_object_class_install_property (gobject_class,
475 PROP_RESTRICT_TO_FILL_LEVEL,
476 g_param_spec_boolean ("restrict-to-fill-level",
477 P_("Restrict to Fill Level"),
478 P_("Whether to restrict the upper boundary to the fill level."),
480 GTK_PARAM_READWRITE));
483 * GtkRange:fill-level:
485 * The fill level (e.g. prebuffering of a network stream).
486 * See gtk_range_set_fill_level().
490 g_object_class_install_property (gobject_class,
492 g_param_spec_double ("fill-level",
494 P_("The fill level."),
498 GTK_PARAM_READWRITE));
501 * GtkRange:round-digits:
503 * The number of digits to round the value to when
504 * it changes, or -1. See #GtkRange::change-value.
508 g_object_class_install_property (gobject_class,
510 g_param_spec_int ("round-digits",
512 P_("The number of digits to round the value to."),
516 GTK_PARAM_READWRITE));
518 gtk_widget_class_install_style_property (widget_class,
519 g_param_spec_int ("slider-width",
521 P_("Width of scrollbar or scale thumb"),
525 GTK_PARAM_READABLE));
526 gtk_widget_class_install_style_property (widget_class,
527 g_param_spec_int ("trough-border",
529 P_("Spacing between thumb/steppers and outer trough bevel"),
533 GTK_PARAM_READABLE));
534 gtk_widget_class_install_style_property (widget_class,
535 g_param_spec_int ("stepper-size",
537 P_("Length of step buttons at ends"),
541 GTK_PARAM_READABLE));
543 * GtkRange:stepper-spacing:
545 * The spacing between the stepper buttons and thumb. Note that
546 * stepper-spacing won't have any effect if there are no steppers.
548 gtk_widget_class_install_style_property (widget_class,
549 g_param_spec_int ("stepper-spacing",
550 P_("Stepper Spacing"),
551 P_("Spacing between step buttons and thumb"),
555 GTK_PARAM_READABLE));
556 gtk_widget_class_install_style_property (widget_class,
557 g_param_spec_int ("arrow-displacement-x",
558 P_("Arrow X Displacement"),
559 P_("How far in the x direction to move the arrow when the button is depressed"),
563 GTK_PARAM_READABLE));
564 gtk_widget_class_install_style_property (widget_class,
565 g_param_spec_int ("arrow-displacement-y",
566 P_("Arrow Y Displacement"),
567 P_("How far in the y direction to move the arrow when the button is depressed"),
571 GTK_PARAM_READABLE));
574 * GtkRange:trough-under-steppers:
576 * Whether to draw the trough across the full length of the range or
577 * to exclude the steppers and their spacing.
581 gtk_widget_class_install_style_property (widget_class,
582 g_param_spec_boolean ("trough-under-steppers",
583 P_("Trough Under Steppers"),
584 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
586 GTK_PARAM_READABLE));
589 * GtkRange:arrow-scaling:
591 * The arrow size proportion relative to the scroll button size.
595 gtk_widget_class_install_style_property (widget_class,
596 g_param_spec_float ("arrow-scaling",
598 P_("Arrow scaling with regard to scroll button size"),
600 GTK_PARAM_READABLE));
602 g_type_class_add_private (class, sizeof (GtkRangePrivate));
606 gtk_range_set_property (GObject *object,
611 GtkRange *range = GTK_RANGE (object);
612 GtkRangePrivate *priv = range->priv;
616 case PROP_ORIENTATION:
617 priv->orientation = g_value_get_enum (value);
619 priv->slider_detail_quark = 0;
620 priv->stepper_detail_quark[0] = 0;
621 priv->stepper_detail_quark[1] = 0;
622 priv->stepper_detail_quark[2] = 0;
623 priv->stepper_detail_quark[3] = 0;
625 _gtk_orientable_set_style_classes (GTK_ORIENTABLE (range));
626 gtk_widget_queue_resize (GTK_WIDGET (range));
628 case PROP_ADJUSTMENT:
629 gtk_range_set_adjustment (range, g_value_get_object (value));
632 gtk_range_set_inverted (range, g_value_get_boolean (value));
634 case PROP_LOWER_STEPPER_SENSITIVITY:
635 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
637 case PROP_UPPER_STEPPER_SENSITIVITY:
638 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
640 case PROP_SHOW_FILL_LEVEL:
641 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
643 case PROP_RESTRICT_TO_FILL_LEVEL:
644 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
646 case PROP_FILL_LEVEL:
647 gtk_range_set_fill_level (range, g_value_get_double (value));
649 case PROP_ROUND_DIGITS:
650 gtk_range_set_round_digits (range, g_value_get_int (value));
653 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
659 gtk_range_get_property (GObject *object,
664 GtkRange *range = GTK_RANGE (object);
665 GtkRangePrivate *priv = range->priv;
669 case PROP_ORIENTATION:
670 g_value_set_enum (value, priv->orientation);
672 case PROP_ADJUSTMENT:
673 g_value_set_object (value, priv->adjustment);
676 g_value_set_boolean (value, priv->inverted);
678 case PROP_LOWER_STEPPER_SENSITIVITY:
679 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
681 case PROP_UPPER_STEPPER_SENSITIVITY:
682 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
684 case PROP_SHOW_FILL_LEVEL:
685 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
687 case PROP_RESTRICT_TO_FILL_LEVEL:
688 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
690 case PROP_FILL_LEVEL:
691 g_value_set_double (value, gtk_range_get_fill_level (range));
693 case PROP_ROUND_DIGITS:
694 g_value_set_int (value, gtk_range_get_round_digits (range));
697 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
703 gtk_range_init (GtkRange *range)
705 GtkRangePrivate *priv;
707 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
712 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
714 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
715 priv->adjustment = NULL;
716 priv->inverted = FALSE;
717 priv->flippable = FALSE;
718 priv->min_slider_size = 1;
719 priv->has_stepper_a = FALSE;
720 priv->has_stepper_b = FALSE;
721 priv->has_stepper_c = FALSE;
722 priv->has_stepper_d = FALSE;
723 priv->need_recalc = TRUE;
724 priv->round_digits = -1;
725 priv->mouse_location = MOUSE_OUTSIDE;
728 priv->grab_location = MOUSE_OUTSIDE;
729 priv->grab_button = 0;
730 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
731 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
732 priv->lower_sensitive = TRUE;
733 priv->upper_sensitive = TRUE;
734 priv->show_fill_level = FALSE;
735 priv->restrict_to_fill_level = TRUE;
736 priv->fill_level = G_MAXDOUBLE;
741 * gtk_range_get_adjustment:
742 * @range: a #GtkRange
744 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
745 * See gtk_range_set_adjustment() for details.
746 * The return value does not have a reference added, so should not
749 * Return value: (transfer none): a #GtkAdjustment
752 gtk_range_get_adjustment (GtkRange *range)
754 GtkRangePrivate *priv;
756 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
760 if (!priv->adjustment)
761 gtk_range_set_adjustment (range, NULL);
763 return priv->adjustment;
767 * gtk_range_set_adjustment:
768 * @range: a #GtkRange
769 * @adjustment: a #GtkAdjustment
771 * Sets the adjustment to be used as the "model" object for this range
772 * widget. The adjustment indicates the current range value, the
773 * minimum and maximum range values, the step/page increments used
774 * for keybindings and scrolling, and the page size. The page size
775 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
776 * indicates the size of the visible area of the widget being scrolled.
777 * The page size affects the size of the scrollbar slider.
780 gtk_range_set_adjustment (GtkRange *range,
781 GtkAdjustment *adjustment)
783 GtkRangePrivate *priv;
785 g_return_if_fail (GTK_IS_RANGE (range));
790 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
792 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
794 if (priv->adjustment != adjustment)
796 if (priv->adjustment)
798 g_signal_handlers_disconnect_by_func (priv->adjustment,
799 gtk_range_adjustment_changed,
801 g_signal_handlers_disconnect_by_func (priv->adjustment,
802 gtk_range_adjustment_value_changed,
804 g_object_unref (priv->adjustment);
807 priv->adjustment = adjustment;
808 g_object_ref_sink (adjustment);
810 g_signal_connect (adjustment, "changed",
811 G_CALLBACK (gtk_range_adjustment_changed),
813 g_signal_connect (adjustment, "value-changed",
814 G_CALLBACK (gtk_range_adjustment_value_changed),
817 gtk_range_adjustment_changed (adjustment, range);
818 g_object_notify (G_OBJECT (range), "adjustment");
823 * gtk_range_set_inverted:
824 * @range: a #GtkRange
825 * @setting: %TRUE to invert the range
827 * Ranges normally move from lower to higher values as the
828 * slider moves from top to bottom or left to right. Inverted
829 * ranges have higher values at the top or on the right rather than
830 * on the bottom or left.
833 gtk_range_set_inverted (GtkRange *range,
836 GtkRangePrivate *priv;
838 g_return_if_fail (GTK_IS_RANGE (range));
842 setting = setting != FALSE;
844 if (setting != priv->inverted)
846 priv->inverted = setting;
847 g_object_notify (G_OBJECT (range), "inverted");
848 gtk_widget_queue_resize (GTK_WIDGET (range));
853 * gtk_range_get_inverted:
854 * @range: a #GtkRange
856 * Gets the value set by gtk_range_set_inverted().
858 * Return value: %TRUE if the range is inverted
861 gtk_range_get_inverted (GtkRange *range)
863 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
865 return range->priv->inverted;
869 * gtk_range_set_flippable:
870 * @range: a #GtkRange
871 * @flippable: %TRUE to make the range flippable
873 * If a range is flippable, it will switch its direction if it is
874 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
876 * See gtk_widget_get_direction().
881 gtk_range_set_flippable (GtkRange *range,
884 GtkRangePrivate *priv;
886 g_return_if_fail (GTK_IS_RANGE (range));
890 flippable = flippable ? TRUE : FALSE;
892 if (flippable != priv->flippable)
894 priv->flippable = flippable;
896 gtk_widget_queue_draw (GTK_WIDGET (range));
901 * gtk_range_get_flippable:
902 * @range: a #GtkRange
904 * Gets the value set by gtk_range_set_flippable().
906 * Return value: %TRUE if the range is flippable
911 gtk_range_get_flippable (GtkRange *range)
913 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
915 return range->priv->flippable;
919 * gtk_range_set_slider_size_fixed:
920 * @range: a #GtkRange
921 * @size_fixed: %TRUE to make the slider size constant
923 * Sets whether the range's slider has a fixed size, or a size that
924 * depends on its adjustment's page size.
926 * This function is useful mainly for #GtkRange subclasses.
931 gtk_range_set_slider_size_fixed (GtkRange *range,
934 GtkRangePrivate *priv;
936 g_return_if_fail (GTK_IS_RANGE (range));
940 if (size_fixed != priv->slider_size_fixed)
942 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
944 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
946 priv->need_recalc = TRUE;
947 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
948 gtk_widget_queue_draw (GTK_WIDGET (range));
954 * gtk_range_get_slider_size_fixed:
955 * @range: a #GtkRange
957 * This function is useful mainly for #GtkRange subclasses.
959 * See gtk_range_set_slider_size_fixed().
961 * Return value: whether the range's slider has a fixed size.
966 gtk_range_get_slider_size_fixed (GtkRange *range)
968 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
970 return range->priv->slider_size_fixed;
974 * gtk_range_set_min_slider_size:
975 * @range: a #GtkRange
976 * @min_size: The slider's minimum size
978 * Sets the minimum size of the range's slider.
980 * This function is useful mainly for #GtkRange subclasses.
985 gtk_range_set_min_slider_size (GtkRange *range,
988 GtkRangePrivate *priv;
990 g_return_if_fail (GTK_IS_RANGE (range));
991 g_return_if_fail (min_size > 0);
995 if (min_size != priv->min_slider_size)
997 priv->min_slider_size = min_size;
999 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1001 priv->need_recalc = TRUE;
1002 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1003 gtk_widget_queue_draw (GTK_WIDGET (range));
1009 * gtk_range_get_min_slider_size:
1010 * @range: a #GtkRange
1012 * This function is useful mainly for #GtkRange subclasses.
1014 * See gtk_range_set_min_slider_size().
1016 * Return value: The minimum size of the range's slider.
1021 gtk_range_get_min_slider_size (GtkRange *range)
1023 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1025 return range->priv->min_slider_size;
1029 * gtk_range_get_range_rect:
1030 * @range: a #GtkRange
1031 * @range_rect: (out): return location for the range rectangle
1033 * This function returns the area that contains the range's trough
1034 * and its steppers, in widget->window coordinates.
1036 * This function is useful mainly for #GtkRange subclasses.
1041 gtk_range_get_range_rect (GtkRange *range,
1042 GdkRectangle *range_rect)
1044 GtkRangePrivate *priv;
1046 g_return_if_fail (GTK_IS_RANGE (range));
1047 g_return_if_fail (range_rect != NULL);
1051 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1053 *range_rect = priv->range_rect;
1057 * gtk_range_get_slider_range:
1058 * @range: a #GtkRange
1059 * @slider_start: (out) (allow-none): return location for the slider's
1061 * @slider_end: (out) (allow-none): return location for the slider's
1064 * This function returns sliders range along the long dimension,
1065 * in widget->window coordinates.
1067 * This function is useful mainly for #GtkRange subclasses.
1072 gtk_range_get_slider_range (GtkRange *range,
1076 GtkRangePrivate *priv;
1078 g_return_if_fail (GTK_IS_RANGE (range));
1082 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1085 *slider_start = priv->slider_start;
1088 *slider_end = priv->slider_end;
1092 * gtk_range_set_lower_stepper_sensitivity:
1093 * @range: a #GtkRange
1094 * @sensitivity: the lower stepper's sensitivity policy.
1096 * Sets the sensitivity policy for the stepper that points to the
1097 * 'lower' end of the GtkRange's adjustment.
1102 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1103 GtkSensitivityType sensitivity)
1105 GtkRangePrivate *priv;
1107 g_return_if_fail (GTK_IS_RANGE (range));
1111 if (priv->lower_sensitivity != sensitivity)
1113 priv->lower_sensitivity = sensitivity;
1115 priv->need_recalc = TRUE;
1116 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1117 gtk_widget_queue_draw (GTK_WIDGET (range));
1119 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1124 * gtk_range_get_lower_stepper_sensitivity:
1125 * @range: a #GtkRange
1127 * Gets the sensitivity policy for the stepper that points to the
1128 * 'lower' end of the GtkRange's adjustment.
1130 * Return value: The lower stepper's sensitivity policy.
1135 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1137 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1139 return range->priv->lower_sensitivity;
1143 * gtk_range_set_upper_stepper_sensitivity:
1144 * @range: a #GtkRange
1145 * @sensitivity: the upper stepper's sensitivity policy.
1147 * Sets the sensitivity policy for the stepper that points to the
1148 * 'upper' end of the GtkRange's adjustment.
1153 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1154 GtkSensitivityType sensitivity)
1156 GtkRangePrivate *priv;
1158 g_return_if_fail (GTK_IS_RANGE (range));
1162 if (priv->upper_sensitivity != sensitivity)
1164 priv->upper_sensitivity = sensitivity;
1166 priv->need_recalc = TRUE;
1167 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1168 gtk_widget_queue_draw (GTK_WIDGET (range));
1170 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1175 * gtk_range_get_upper_stepper_sensitivity:
1176 * @range: a #GtkRange
1178 * Gets the sensitivity policy for the stepper that points to the
1179 * 'upper' end of the GtkRange's adjustment.
1181 * Return value: The upper stepper's sensitivity policy.
1186 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1188 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1190 return range->priv->upper_sensitivity;
1194 * gtk_range_set_increments:
1195 * @range: a #GtkRange
1199 * Sets the step and page sizes for the range.
1200 * The step size is used when the user clicks the #GtkScrollbar
1201 * arrows or moves #GtkScale via arrow keys. The page size
1202 * is used for example when moving via Page Up or Page Down keys.
1205 gtk_range_set_increments (GtkRange *range,
1209 GtkAdjustment *adjustment;
1211 g_return_if_fail (GTK_IS_RANGE (range));
1213 adjustment = range->priv->adjustment;
1215 gtk_adjustment_configure (adjustment,
1216 gtk_adjustment_get_value (adjustment),
1217 gtk_adjustment_get_lower (adjustment),
1218 gtk_adjustment_get_upper (adjustment),
1221 gtk_adjustment_get_page_size (adjustment));
1225 * gtk_range_set_range:
1226 * @range: a #GtkRange
1227 * @min: minimum range value
1228 * @max: maximum range value
1230 * Sets the allowable values in the #GtkRange, and clamps the range
1231 * value to be between @min and @max. (If the range has a non-zero
1232 * page size, it is clamped between @min and @max - page-size.)
1235 gtk_range_set_range (GtkRange *range,
1239 GtkRangePrivate *priv;
1240 GtkAdjustment *adjustment;
1243 g_return_if_fail (GTK_IS_RANGE (range));
1244 g_return_if_fail (min <= max);
1247 adjustment = priv->adjustment;
1249 value = gtk_adjustment_get_value (adjustment);
1250 if (priv->restrict_to_fill_level)
1251 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1254 gtk_adjustment_configure (adjustment,
1258 gtk_adjustment_get_step_increment (adjustment),
1259 gtk_adjustment_get_page_increment (adjustment),
1260 gtk_adjustment_get_page_size (adjustment));
1264 * gtk_range_set_value:
1265 * @range: a #GtkRange
1266 * @value: new value of the range
1268 * Sets the current value of the range; if the value is outside the
1269 * minimum or maximum range values, it will be clamped to fit inside
1270 * them. The range emits the #GtkRange::value-changed signal if the
1274 gtk_range_set_value (GtkRange *range,
1277 GtkRangePrivate *priv;
1279 g_return_if_fail (GTK_IS_RANGE (range));
1283 if (priv->restrict_to_fill_level)
1284 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1287 gtk_adjustment_set_value (priv->adjustment, value);
1291 * gtk_range_get_value:
1292 * @range: a #GtkRange
1294 * Gets the current value of the range.
1296 * Return value: current value of the range.
1299 gtk_range_get_value (GtkRange *range)
1301 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1303 return gtk_adjustment_get_value (range->priv->adjustment);
1307 * gtk_range_set_show_fill_level:
1308 * @range: A #GtkRange
1309 * @show_fill_level: Whether a fill level indicator graphics is shown.
1311 * Sets whether a graphical fill level is show on the trough. See
1312 * gtk_range_set_fill_level() for a general description of the fill
1318 gtk_range_set_show_fill_level (GtkRange *range,
1319 gboolean show_fill_level)
1321 GtkRangePrivate *priv;
1323 g_return_if_fail (GTK_IS_RANGE (range));
1327 show_fill_level = show_fill_level ? TRUE : FALSE;
1329 if (show_fill_level != priv->show_fill_level)
1331 priv->show_fill_level = show_fill_level;
1332 g_object_notify (G_OBJECT (range), "show-fill-level");
1333 gtk_widget_queue_draw (GTK_WIDGET (range));
1338 * gtk_range_get_show_fill_level:
1339 * @range: A #GtkRange
1341 * Gets whether the range displays the fill level graphically.
1343 * Return value: %TRUE if @range shows the fill level.
1348 gtk_range_get_show_fill_level (GtkRange *range)
1350 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1352 return range->priv->show_fill_level;
1356 * gtk_range_set_restrict_to_fill_level:
1357 * @range: A #GtkRange
1358 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1360 * Sets whether the slider is restricted to the fill level. See
1361 * gtk_range_set_fill_level() for a general description of the fill
1367 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1368 gboolean restrict_to_fill_level)
1370 GtkRangePrivate *priv;
1372 g_return_if_fail (GTK_IS_RANGE (range));
1376 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1378 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1380 priv->restrict_to_fill_level = restrict_to_fill_level;
1381 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1383 gtk_range_set_value (range, gtk_range_get_value (range));
1388 * gtk_range_get_restrict_to_fill_level:
1389 * @range: A #GtkRange
1391 * Gets whether the range is restricted to the fill level.
1393 * Return value: %TRUE if @range is restricted to the fill level.
1398 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1400 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1402 return range->priv->restrict_to_fill_level;
1406 * gtk_range_set_fill_level:
1407 * @range: a #GtkRange
1408 * @fill_level: the new position of the fill level indicator
1410 * Set the new position of the fill level indicator.
1412 * The "fill level" is probably best described by its most prominent
1413 * use case, which is an indicator for the amount of pre-buffering in
1414 * a streaming media player. In that use case, the value of the range
1415 * would indicate the current play position, and the fill level would
1416 * be the position up to which the file/stream has been downloaded.
1418 * This amount of prebuffering can be displayed on the range's trough
1419 * and is themeable separately from the trough. To enable fill level
1420 * display, use gtk_range_set_show_fill_level(). The range defaults
1421 * to not showing the fill level.
1423 * Additionally, it's possible to restrict the range's slider position
1424 * to values which are smaller than the fill level. This is controller
1425 * by gtk_range_set_restrict_to_fill_level() and is by default
1431 gtk_range_set_fill_level (GtkRange *range,
1434 GtkRangePrivate *priv;
1436 g_return_if_fail (GTK_IS_RANGE (range));
1440 if (fill_level != priv->fill_level)
1442 priv->fill_level = fill_level;
1443 g_object_notify (G_OBJECT (range), "fill-level");
1445 if (priv->show_fill_level)
1446 gtk_widget_queue_draw (GTK_WIDGET (range));
1448 if (priv->restrict_to_fill_level)
1449 gtk_range_set_value (range, gtk_range_get_value (range));
1454 * gtk_range_get_fill_level:
1455 * @range: A #GtkRange
1457 * Gets the current position of the fill level indicator.
1459 * Return value: The current fill level
1464 gtk_range_get_fill_level (GtkRange *range)
1466 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1468 return range->priv->fill_level;
1472 should_invert (GtkRange *range)
1474 GtkRangePrivate *priv = range->priv;
1476 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1478 (priv->inverted && !priv->flippable) ||
1479 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1480 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1482 return priv->inverted;
1486 gtk_range_destroy (GtkWidget *widget)
1488 GtkRange *range = GTK_RANGE (widget);
1489 GtkRangePrivate *priv = range->priv;
1491 gtk_range_remove_step_timer (range);
1493 if (priv->repaint_id)
1494 g_source_remove (priv->repaint_id);
1495 priv->repaint_id = 0;
1497 if (priv->adjustment)
1499 g_signal_handlers_disconnect_by_func (priv->adjustment,
1500 gtk_range_adjustment_changed,
1502 g_signal_handlers_disconnect_by_func (priv->adjustment,
1503 gtk_range_adjustment_value_changed,
1505 g_object_unref (priv->adjustment);
1506 priv->adjustment = NULL;
1511 g_free (priv->marks);
1513 g_free (priv->mark_pos);
1514 priv->mark_pos = NULL;
1518 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1522 gtk_range_get_preferred_width (GtkWidget *widget,
1527 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1528 GdkRectangle range_rect;
1531 range = GTK_RANGE (widget);
1533 gtk_range_get_props (range,
1534 &slider_width, &stepper_size,
1535 &focus_width, &trough_border,
1536 &stepper_spacing, NULL,
1539 gtk_range_calc_request (range,
1540 slider_width, stepper_size,
1541 focus_width, trough_border, stepper_spacing,
1542 &range_rect, &border, NULL, NULL, NULL, NULL);
1544 *minimum = *natural = range_rect.width + border.left + border.right;
1548 gtk_range_get_preferred_height (GtkWidget *widget,
1553 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1554 GdkRectangle range_rect;
1557 range = GTK_RANGE (widget);
1559 gtk_range_get_props (range,
1560 &slider_width, &stepper_size,
1561 &focus_width, &trough_border,
1562 &stepper_spacing, NULL,
1565 gtk_range_calc_request (range,
1566 slider_width, stepper_size,
1567 focus_width, trough_border, stepper_spacing,
1568 &range_rect, &border, NULL, NULL, NULL, NULL);
1570 *minimum = *natural = range_rect.height + border.top + border.bottom;
1574 modify_allocation_for_window_grip (GtkWidget *widget,
1575 GtkAllocation *allocation)
1577 GtkRange *range = GTK_RANGE (widget);
1578 GtkRangePrivate *priv = range->priv;
1579 GtkWidget *window, *parent;
1580 GdkRectangle grip_rect;
1581 GdkRectangle translated_rect;
1585 window = gtk_widget_get_toplevel (widget);
1586 if (!GTK_IS_WINDOW (window))
1589 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1592 /* Get the area of the window's corner grip */
1593 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1598 /* Translate the stepper's area into window coords.
1599 * This is slightly tricky. We can't just use
1600 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1601 * since that translates wrt to the _current_ allocation
1602 * and will lead to alternating between overlap and nonoverlap
1603 * for successive allocations.
1604 * Therefore, we find the window-widget to whose window allocation
1605 * is relative, and translate from there upwards.
1608 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1611 parent = gtk_widget_get_parent (parent);
1614 if (parent == window)
1615 translated_rect = *allocation;
1618 gtk_widget_translate_coordinates (gtk_widget_get_parent (widget),
1620 allocation->x, allocation->y,
1622 translated_rect.x = x;
1623 translated_rect.y = y;
1624 translated_rect.width = allocation->width;
1625 translated_rect.height = allocation->height;
1628 /* If the stepper button intersects the window resize grip.. */
1629 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, NULL))
1631 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1633 allocation->width -= grip_rect.width;
1634 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1635 allocation->x += grip_rect.width;
1639 allocation->height -= grip_rect.height;
1649 gtk_range_size_allocate (GtkWidget *widget,
1650 GtkAllocation *allocation)
1652 GtkRange *range = GTK_RANGE (widget);
1653 GtkRangePrivate *priv = range->priv;
1655 modify_allocation_for_window_grip (widget, allocation);
1656 gtk_widget_set_allocation (widget, allocation);
1658 priv->recalc_marks = TRUE;
1660 priv->need_recalc = TRUE;
1661 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1663 if (gtk_widget_get_realized (widget))
1664 gdk_window_move_resize (priv->event_window,
1665 allocation->x, allocation->y,
1666 allocation->width, allocation->height);
1670 resize_grip_visible_changed (GObject *object,
1674 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1678 gtk_range_hierarchy_changed (GtkWidget *widget,
1679 GtkWidget *previous_toplevel)
1683 if (previous_toplevel)
1684 g_signal_handlers_disconnect_by_func (previous_toplevel,
1685 G_CALLBACK (resize_grip_visible_changed),
1687 window = gtk_widget_get_toplevel (widget);
1688 if (gtk_widget_is_toplevel (window))
1689 g_signal_connect (window, "notify::resize-grip-visible",
1690 G_CALLBACK (resize_grip_visible_changed), widget);
1694 gtk_range_realize (GtkWidget *widget)
1696 GtkAllocation allocation;
1697 GtkRange *range = GTK_RANGE (widget);
1698 GtkRangePrivate *priv = range->priv;
1700 GdkWindowAttr attributes;
1701 gint attributes_mask;
1703 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1705 gtk_widget_set_realized (widget, TRUE);
1707 window = gtk_widget_get_parent_window (widget);
1708 gtk_widget_set_window (widget, window);
1709 g_object_ref (window);
1711 gtk_widget_get_allocation (widget, &allocation);
1712 if (modify_allocation_for_window_grip (widget, &allocation))
1713 gtk_widget_set_allocation (widget, &allocation);
1715 attributes.window_type = GDK_WINDOW_CHILD;
1716 attributes.x = allocation.x;
1717 attributes.y = allocation.y;
1718 attributes.width = allocation.width;
1719 attributes.height = allocation.height;
1720 attributes.wclass = GDK_INPUT_ONLY;
1721 attributes.event_mask = gtk_widget_get_events (widget);
1722 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1723 GDK_BUTTON_RELEASE_MASK |
1724 GDK_ENTER_NOTIFY_MASK |
1725 GDK_LEAVE_NOTIFY_MASK |
1726 GDK_POINTER_MOTION_MASK |
1727 GDK_POINTER_MOTION_HINT_MASK);
1729 attributes_mask = GDK_WA_X | GDK_WA_Y;
1731 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1732 &attributes, attributes_mask);
1733 gdk_window_set_user_data (priv->event_window, range);
1737 gtk_range_unrealize (GtkWidget *widget)
1739 GtkRange *range = GTK_RANGE (widget);
1740 GtkRangePrivate *priv = range->priv;
1742 gtk_range_remove_step_timer (range);
1744 gdk_window_set_user_data (priv->event_window, NULL);
1745 gdk_window_destroy (priv->event_window);
1746 priv->event_window = NULL;
1748 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1752 gtk_range_map (GtkWidget *widget)
1754 GtkRange *range = GTK_RANGE (widget);
1755 GtkRangePrivate *priv = range->priv;
1757 gdk_window_show (priv->event_window);
1759 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1763 gtk_range_unmap (GtkWidget *widget)
1765 GtkRange *range = GTK_RANGE (widget);
1766 GtkRangePrivate *priv = range->priv;
1768 stop_scrolling (range);
1770 gdk_window_hide (priv->event_window);
1772 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1776 _gtk_range_update_context_for_stepper (GtkRange *range,
1777 GtkStyleContext *context,
1780 GtkRangePrivate *priv = range->priv;
1781 GtkJunctionSides sides = 0;
1782 gboolean vertical, is_rtl;
1784 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1785 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1787 /* Take junction sides from what's been
1788 * previously set to the widget itself
1790 sides = gtk_style_context_get_junction_sides (context);
1793 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1795 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1801 sides |= GTK_JUNCTION_BOTTOM;
1803 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1806 if (priv->has_stepper_a)
1809 sides |= GTK_JUNCTION_TOP;
1811 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1815 sides |= GTK_JUNCTION_BOTTOM;
1817 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1820 if (priv->has_stepper_d)
1823 sides |= GTK_JUNCTION_BOTTOM;
1825 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1829 sides |= GTK_JUNCTION_TOP;
1831 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1835 sides |= GTK_JUNCTION_TOP;
1837 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1841 gtk_style_context_set_junction_sides (context, sides);
1845 draw_stepper (GtkRange *range,
1848 GtkArrowType arrow_type,
1850 gboolean prelighted)
1852 GtkRangePrivate *priv = range->priv;
1853 GtkAllocation allocation;
1854 GtkStateFlags state = 0;
1855 GtkStyleContext *context;
1856 GtkWidget *widget = GTK_WIDGET (range);
1857 gfloat arrow_scaling;
1861 gdouble arrow_size, angle;
1862 gboolean arrow_sensitive;
1867 rect = &priv->stepper_a;
1870 rect = &priv->stepper_b;
1873 rect = &priv->stepper_c;
1876 rect = &priv->stepper_d;
1879 g_assert_not_reached ();
1882 arrow_sensitive = TRUE;
1884 gtk_widget_get_allocation (widget, &allocation);
1886 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1887 arrow_type == GTK_ARROW_RIGHT)) ||
1888 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1889 arrow_type == GTK_ARROW_LEFT)))
1891 arrow_sensitive = priv->upper_sensitive;
1895 arrow_sensitive = priv->lower_sensitive;
1898 if (!gtk_widget_is_sensitive (GTK_WIDGET (range)) || !arrow_sensitive)
1899 state = GTK_STATE_FLAG_INSENSITIVE;
1903 state |= GTK_STATE_FLAG_ACTIVE;
1905 state |= GTK_STATE_FLAG_PRELIGHT;
1908 context = gtk_widget_get_style_context (widget);
1910 gtk_style_context_save (context);
1912 /* don't set juction sides on scrollbar steppers */
1913 if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_SCROLLBAR))
1914 gtk_style_context_set_junction_sides (context, GTK_JUNCTION_NONE);
1916 _gtk_range_update_context_for_stepper (range, context, stepper);
1918 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1919 gtk_style_context_set_state (context, state);
1921 gtk_render_background (context, cr,
1923 rect->width, rect->height);
1924 gtk_render_frame (context, cr,
1926 rect->width, rect->height);
1928 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1930 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1931 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1932 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1934 if (clicked && arrow_sensitive)
1936 gint arrow_displacement_x;
1937 gint arrow_displacement_y;
1939 gtk_range_get_props (GTK_RANGE (widget),
1940 NULL, NULL, NULL, NULL, NULL, NULL,
1941 &arrow_displacement_x, &arrow_displacement_y);
1943 arrow_x += arrow_displacement_x;
1944 arrow_y += arrow_displacement_y;
1949 case GTK_ARROW_RIGHT:
1952 case GTK_ARROW_DOWN:
1955 case GTK_ARROW_LEFT:
1956 angle = 3 * (G_PI / 2);
1964 gtk_render_arrow (context, cr,
1969 gtk_style_context_restore (context);
1973 gtk_range_draw (GtkWidget *widget,
1976 GtkRange *range = GTK_RANGE (widget);
1977 GtkRangePrivate *priv = range->priv;
1979 GtkStateFlags state = 0;
1980 gint focus_line_width = 0;
1981 gint focus_padding = 0;
1982 gboolean touchscreen;
1983 gboolean draw_trough = TRUE;
1984 GtkStyleContext *context;
1986 context = gtk_widget_get_style_context (widget);
1987 g_object_get (gtk_widget_get_settings (widget),
1988 "gtk-touchscreen-mode", &touchscreen,
1991 if (GTK_IS_SCALE (widget) &&
1992 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
1993 draw_trough = FALSE;
1995 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
1996 gtk_widget_style_get (GTK_WIDGET (range),
1997 "focus-line-width", &focus_line_width,
1998 "focus-padding", &focus_padding,
2001 /* we're now exposing, so there's no need to force early repaints */
2002 if (priv->repaint_id)
2003 g_source_remove (priv->repaint_id);
2004 priv->repaint_id = 0;
2006 gtk_range_calc_marks (range);
2007 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2009 sensitive = gtk_widget_is_sensitive (widget);
2011 /* Just to be confusing, we draw the trough for the whole
2012 * range rectangle, not the trough rectangle (the trough
2013 * rectangle is just for hit detection)
2016 gdk_cairo_rectangle (cr, &priv->range_rect);
2020 gint x = (priv->range_rect.x +
2021 focus_line_width + focus_padding);
2022 gint y = (priv->range_rect.y +
2023 focus_line_width + focus_padding);
2024 gint width = (priv->range_rect.width -
2025 2 * (focus_line_width + focus_padding));
2026 gint height = (priv->range_rect.height -
2027 2 * (focus_line_width + focus_padding));
2028 gboolean trough_under_steppers;
2030 gint stepper_spacing;
2032 gtk_widget_style_get (GTK_WIDGET (range),
2033 "trough-under-steppers", &trough_under_steppers,
2034 "stepper-size", &stepper_size,
2035 "stepper-spacing", &stepper_spacing,
2038 gtk_style_context_save (context);
2041 gtk_style_context_set_state (context, GTK_STATE_FLAG_INSENSITIVE);
2043 if (!trough_under_steppers)
2048 if (priv->has_stepper_a)
2049 offset += stepper_size;
2051 if (priv->has_stepper_b)
2052 offset += stepper_size;
2056 if (priv->has_stepper_c)
2057 shorter += stepper_size;
2059 if (priv->has_stepper_d)
2060 shorter += stepper_size;
2062 if (priv->has_stepper_a || priv->has_stepper_b)
2064 offset += stepper_spacing;
2065 shorter += stepper_spacing;
2068 if (priv->has_stepper_c || priv->has_stepper_d)
2070 shorter += stepper_spacing;
2073 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2085 gtk_style_context_save (context);
2086 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2090 gint trough_change_pos_x = width;
2091 gint trough_change_pos_y = height;
2093 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2094 trough_change_pos_x = (priv->slider.x +
2095 priv->slider.width / 2 -
2098 trough_change_pos_y = (priv->slider.y +
2099 priv->slider.height / 2 -
2102 /* FIXME: was trough-upper and trough-lower really used,
2103 * in that case, it should still be exposed somehow.
2105 gtk_render_background (context, cr, x, y,
2106 trough_change_pos_x,
2107 trough_change_pos_y);
2109 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2110 trough_change_pos_y = 0;
2112 trough_change_pos_x = 0;
2114 gtk_render_background (context, cr,
2115 x + trough_change_pos_x, y + trough_change_pos_y,
2116 width - trough_change_pos_x,
2117 height - trough_change_pos_y);
2119 gtk_render_frame (context, cr,
2120 x, y, width, height);
2124 gtk_render_background (context, cr,
2125 x, y, width, height);
2126 gtk_render_frame (context, cr,
2127 x, y, width, height);
2130 gtk_style_context_restore (context);
2132 if (priv->show_fill_level &&
2133 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2134 gtk_adjustment_get_lower (priv->adjustment) != 0)
2136 gdouble fill_level = priv->fill_level;
2139 gint fill_width = width;
2140 gint fill_height = height;
2142 gtk_style_context_save (context);
2143 gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
2145 fill_level = CLAMP (fill_level, gtk_adjustment_get_lower (priv->adjustment),
2146 gtk_adjustment_get_upper (priv->adjustment) -
2147 gtk_adjustment_get_page_size (priv->adjustment));
2149 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2151 fill_x = priv->trough.x;
2152 fill_width = (priv->slider.width +
2153 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2154 (gtk_adjustment_get_upper (priv->adjustment) -
2155 gtk_adjustment_get_lower (priv->adjustment) -
2156 gtk_adjustment_get_page_size (priv->adjustment)) *
2157 (priv->trough.width -
2158 priv->slider.width));
2160 if (should_invert (range))
2161 fill_x += priv->trough.width - fill_width;
2165 fill_y = priv->trough.y;
2166 fill_height = (priv->slider.height +
2167 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2168 (gtk_adjustment_get_upper (priv->adjustment) -
2169 gtk_adjustment_get_lower (priv->adjustment) -
2170 gtk_adjustment_get_page_size (priv->adjustment)) *
2171 (priv->trough.height -
2172 priv->slider.height));
2174 if (should_invert (range))
2175 fill_y += priv->trough.height - fill_height;
2179 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2180 fill_detail = "trough-fill-level-full";
2182 fill_detail = "trough-fill-level";
2185 gtk_render_activity (context, cr,
2187 fill_width, fill_height);
2189 gtk_style_context_restore (context);
2192 gtk_style_context_restore (context);
2194 if (sensitive && gtk_widget_has_focus (widget))
2196 gtk_style_context_save (context);
2197 gtk_style_context_set_state (context,
2198 gtk_widget_get_state_flags (widget));
2200 gtk_render_focus (context, cr,
2203 priv->range_rect.width,
2204 priv->range_rect.height);
2206 gtk_style_context_restore (context);
2213 state = GTK_STATE_FLAG_INSENSITIVE;
2214 else if (!touchscreen && priv->mouse_location == MOUSE_SLIDER)
2215 state = GTK_STATE_FLAG_PRELIGHT;
2217 if (priv->grab_location == MOUSE_SLIDER)
2218 state |= GTK_STATE_FLAG_ACTIVE;
2221 gdk_cairo_rectangle (cr, &priv->slider);
2226 gtk_style_context_save (context);
2227 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2228 gtk_style_context_set_state (context, state);
2230 gtk_render_slider (context, cr,
2234 priv->slider.height,
2237 gtk_style_context_restore (context);
2242 if (priv->has_stepper_a)
2243 draw_stepper (range, STEPPER_A, cr,
2244 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2245 priv->grab_location == MOUSE_STEPPER_A,
2246 !touchscreen && priv->mouse_location == MOUSE_STEPPER_A);
2248 if (priv->has_stepper_b)
2249 draw_stepper (range, STEPPER_B, cr,
2250 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2251 priv->grab_location == MOUSE_STEPPER_B,
2252 !touchscreen && priv->mouse_location == MOUSE_STEPPER_B);
2254 if (priv->has_stepper_c)
2255 draw_stepper (range, STEPPER_C, cr,
2256 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2257 priv->grab_location == MOUSE_STEPPER_C,
2258 !touchscreen && priv->mouse_location == MOUSE_STEPPER_C);
2260 if (priv->has_stepper_d)
2261 draw_stepper (range, STEPPER_D, cr,
2262 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2263 priv->grab_location == MOUSE_STEPPER_D,
2264 !touchscreen && priv->mouse_location == MOUSE_STEPPER_D);
2270 range_grab_add (GtkRange *range,
2272 MouseLocation location,
2275 GtkRangePrivate *priv = range->priv;
2277 if (device == priv->grab_device)
2280 if (priv->grab_device != NULL)
2282 g_warning ("GtkRange already had a grab device, releasing device grab");
2283 gtk_device_grab_remove (GTK_WIDGET (range), priv->grab_device);
2286 /* we don't actually gdk_grab, since a button is down */
2287 gtk_device_grab_add (GTK_WIDGET (range), device, TRUE);
2289 priv->grab_location = location;
2290 priv->grab_button = button;
2291 priv->grab_device = device;
2293 if (gtk_range_update_mouse_location (range))
2294 gtk_widget_queue_draw (GTK_WIDGET (range));
2298 range_grab_remove (GtkRange *range)
2300 GtkRangePrivate *priv = range->priv;
2301 MouseLocation location;
2303 if (priv->grab_device)
2305 gtk_device_grab_remove (GTK_WIDGET (range),
2307 priv->grab_device = NULL;
2310 location = priv->grab_location;
2311 priv->grab_location = MOUSE_OUTSIDE;
2312 priv->grab_button = 0;
2314 if (gtk_range_update_mouse_location (range) ||
2315 location != MOUSE_OUTSIDE)
2316 gtk_widget_queue_draw (GTK_WIDGET (range));
2319 static GtkScrollType
2320 range_get_scroll_for_grab (GtkRange *range)
2322 GtkRangePrivate *priv = range->priv;
2325 invert = should_invert (range);
2326 switch (priv->grab_location)
2328 /* Backward stepper */
2329 case MOUSE_STEPPER_A:
2330 case MOUSE_STEPPER_C:
2331 switch (priv->grab_button)
2334 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2337 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2340 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2345 /* Forward stepper */
2346 case MOUSE_STEPPER_B:
2347 case MOUSE_STEPPER_D:
2348 switch (priv->grab_button)
2351 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2354 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2357 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2365 if (priv->trough_click_forward)
2366 return GTK_SCROLL_PAGE_FORWARD;
2368 return GTK_SCROLL_PAGE_BACKWARD;
2378 return GTK_SCROLL_NONE;
2382 coord_to_value (GtkRange *range,
2385 GtkRangePrivate *priv = range->priv;
2392 gint trough_under_steppers;
2394 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2396 trough_length = priv->trough.height;
2397 trough_start = priv->trough.y;
2398 slider_length = priv->slider.height;
2402 trough_length = priv->trough.width;
2403 trough_start = priv->trough.x;
2404 slider_length = priv->slider.width;
2407 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2408 &trough_under_steppers, NULL, NULL);
2410 if (! trough_under_steppers)
2412 trough_start += trough_border;
2413 trough_length -= 2 * trough_border;
2416 if (trough_length == slider_length)
2419 frac = (MAX (0, coord - trough_start) /
2420 (gdouble) (trough_length - slider_length));
2422 if (should_invert (range))
2425 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2426 gtk_adjustment_get_lower (priv->adjustment) -
2427 gtk_adjustment_get_page_size (priv->adjustment));
2433 gtk_range_key_press (GtkWidget *widget,
2437 GtkRange *range = GTK_RANGE (widget);
2438 GtkRangePrivate *priv = range->priv;
2440 device = gdk_event_get_device ((GdkEvent *) event);
2441 device = gdk_device_get_associated_device (device);
2443 if (device == priv->grab_device &&
2444 event->keyval == GDK_KEY_Escape &&
2445 priv->grab_location != MOUSE_OUTSIDE)
2447 stop_scrolling (range);
2449 update_slider_position (range,
2450 priv->slide_initial_coordinate,
2451 priv->slide_initial_coordinate);
2456 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2460 gtk_range_button_press (GtkWidget *widget,
2461 GdkEventButton *event)
2463 GtkRange *range = GTK_RANGE (widget);
2464 GtkRangePrivate *priv = range->priv;
2467 if (!gtk_widget_has_focus (widget))
2468 gtk_widget_grab_focus (widget);
2470 /* ignore presses when we're already doing something else. */
2471 if (priv->grab_location != MOUSE_OUTSIDE)
2474 device = gdk_event_get_device ((GdkEvent *) event);
2475 priv->mouse_x = event->x;
2476 priv->mouse_y = event->y;
2478 if (gtk_range_update_mouse_location (range))
2479 gtk_widget_queue_draw (widget);
2481 if (priv->mouse_location == MOUSE_TROUGH &&
2484 /* button 1 steps by page increment, as with button 2 on a stepper
2486 GtkScrollType scroll;
2487 gdouble click_value;
2489 click_value = coord_to_value (range,
2490 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2491 event->y : event->x);
2493 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2494 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2496 scroll = range_get_scroll_for_grab (range);
2498 gtk_range_add_step_timer (range, scroll);
2502 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2503 priv->mouse_location == MOUSE_STEPPER_B ||
2504 priv->mouse_location == MOUSE_STEPPER_C ||
2505 priv->mouse_location == MOUSE_STEPPER_D) &&
2506 (event->button == 1 || event->button == 2 || event->button == 3))
2508 GtkAllocation allocation;
2509 GdkRectangle *stepper_area;
2510 GtkScrollType scroll;
2512 range_grab_add (range, device, priv->mouse_location, event->button);
2514 gtk_widget_get_allocation (widget, &allocation);
2515 stepper_area = get_area (range, priv->mouse_location);
2517 gtk_widget_queue_draw_area (widget,
2518 allocation.x + stepper_area->x,
2519 allocation.y + stepper_area->y,
2520 stepper_area->width,
2521 stepper_area->height);
2523 scroll = range_get_scroll_for_grab (range);
2524 if (scroll != GTK_SCROLL_NONE)
2525 gtk_range_add_step_timer (range, scroll);
2529 else if ((priv->mouse_location == MOUSE_TROUGH &&
2530 event->button == 2) ||
2531 priv->mouse_location == MOUSE_SLIDER)
2533 gboolean need_value_update = FALSE;
2535 /* Any button can be used to drag the slider, but you can start
2536 * dragging the slider with a trough click using button 2;
2537 * On button 2 press, we warp the slider to mouse position,
2538 * then begin the slider drag.
2540 if (event->button == 2)
2542 gdouble slider_low_value, slider_high_value, new_value;
2545 coord_to_value (range,
2546 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2547 event->y : event->x);
2549 coord_to_value (range,
2550 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2551 event->y - priv->slider.height :
2552 event->x - priv->slider.width);
2554 /* compute new value for warped slider */
2555 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2557 /* recalc slider, so we can set slide_initial_slider_position
2560 priv->need_recalc = TRUE;
2561 gtk_range_calc_layout (range, new_value);
2563 /* defer adjustment updates to update_slider_position() in order
2564 * to keep pixel quantisation
2566 need_value_update = TRUE;
2569 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2571 priv->slide_initial_slider_position = priv->slider.y;
2572 priv->slide_initial_coordinate = event->y;
2576 priv->slide_initial_slider_position = priv->slider.x;
2577 priv->slide_initial_coordinate = event->x;
2580 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2582 gtk_widget_queue_draw (widget);
2584 if (need_value_update)
2585 update_slider_position (range, event->x, event->y);
2593 /* During a slide, move the slider as required given new mouse position */
2595 update_slider_position (GtkRange *range,
2599 GtkRangePrivate *priv = range->priv;
2609 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2610 delta = mouse_y - priv->slide_initial_coordinate;
2612 delta = mouse_x - priv->slide_initial_coordinate;
2614 c = priv->slide_initial_slider_position + delta;
2616 new_value = coord_to_value (range, c);
2617 next_value = coord_to_value (range, c + 1);
2618 mark_delta = fabs (next_value - new_value);
2620 for (i = 0; i < priv->n_marks; i++)
2622 mark_value = priv->marks[i];
2624 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2626 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2628 new_value = mark_value;
2634 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2639 stop_scrolling (GtkRange *range)
2641 range_grab_remove (range);
2642 gtk_range_remove_step_timer (range);
2646 gtk_range_grab_broken (GtkWidget *widget,
2647 GdkEventGrabBroken *event)
2649 GtkRange *range = GTK_RANGE (widget);
2650 GtkRangePrivate *priv = range->priv;
2653 device = gdk_event_get_device ((GdkEvent *) event);
2655 if (device == priv->grab_device &&
2656 priv->grab_location != MOUSE_OUTSIDE)
2658 if (priv->grab_location == MOUSE_SLIDER)
2659 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2661 stop_scrolling (range);
2670 gtk_range_button_release (GtkWidget *widget,
2671 GdkEventButton *event)
2673 GtkRange *range = GTK_RANGE (widget);
2674 GtkRangePrivate *priv = range->priv;
2677 if (event->window == priv->event_window)
2679 priv->mouse_x = event->x;
2680 priv->mouse_y = event->y;
2684 gdk_window_get_device_position (priv->event_window,
2691 device = gdk_event_get_device ((GdkEvent *) event);
2693 if (priv->grab_device == device &&
2694 priv->grab_button == event->button)
2696 if (priv->grab_location == MOUSE_SLIDER)
2697 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2699 stop_scrolling (range);
2708 * _gtk_range_get_wheel_delta:
2709 * @range: a #GtkRange
2710 * @direction: A #GdkScrollDirection
2712 * Returns a good step value for the mouse wheel.
2714 * Return value: A good step value for the mouse wheel.
2719 _gtk_range_get_wheel_delta (GtkRange *range,
2720 GdkScrollDirection direction)
2722 GtkRangePrivate *priv = range->priv;
2723 GtkAdjustment *adjustment = priv->adjustment;
2726 if (GTK_IS_SCROLLBAR (range))
2727 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2729 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2731 if (direction == GDK_SCROLL_UP ||
2732 direction == GDK_SCROLL_LEFT)
2742 gtk_range_scroll_event (GtkWidget *widget,
2743 GdkEventScroll *event)
2745 GtkRange *range = GTK_RANGE (widget);
2746 GtkRangePrivate *priv = range->priv;
2748 if (gtk_widget_get_realized (widget))
2753 delta = _gtk_range_get_wheel_delta (range, event->direction);
2755 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2756 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2764 gtk_range_motion_notify (GtkWidget *widget,
2765 GdkEventMotion *event)
2767 GtkRange *range = GTK_RANGE (widget);
2768 GtkRangePrivate *priv = range->priv;
2770 gdk_event_request_motions (event);
2772 priv->mouse_x = event->x;
2773 priv->mouse_y = event->y;
2775 if (gtk_range_update_mouse_location (range))
2776 gtk_widget_queue_draw (widget);
2778 if (priv->grab_location == MOUSE_SLIDER)
2779 update_slider_position (range, event->x, event->y);
2781 /* We handled the event if the mouse was in the range_rect */
2782 return priv->mouse_location != MOUSE_OUTSIDE;
2786 gtk_range_enter_notify (GtkWidget *widget,
2787 GdkEventCrossing *event)
2789 GtkRange *range = GTK_RANGE (widget);
2790 GtkRangePrivate *priv = range->priv;
2792 priv->mouse_x = event->x;
2793 priv->mouse_y = event->y;
2795 if (gtk_range_update_mouse_location (range))
2796 gtk_widget_queue_draw (widget);
2802 gtk_range_leave_notify (GtkWidget *widget,
2803 GdkEventCrossing *event)
2805 GtkRange *range = GTK_RANGE (widget);
2806 GtkRangePrivate *priv = range->priv;
2811 if (gtk_range_update_mouse_location (range))
2812 gtk_widget_queue_draw (widget);
2818 gtk_range_grab_notify (GtkWidget *widget,
2819 gboolean was_grabbed)
2821 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2823 if (priv->grab_device &&
2824 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2825 stop_scrolling (GTK_RANGE (widget));
2829 gtk_range_state_flags_changed (GtkWidget *widget,
2830 GtkStateFlags previous_state)
2832 if (!gtk_widget_is_sensitive (widget))
2833 stop_scrolling (GTK_RANGE (widget));
2836 #define check_rectangle(rectangle1, rectangle2) \
2838 if (rectangle1.x != rectangle2.x) return TRUE; \
2839 if (rectangle1.y != rectangle2.y) return TRUE; \
2840 if (rectangle1.width != rectangle2.width) return TRUE; \
2841 if (rectangle1.height != rectangle2.height) return TRUE; \
2845 layout_changed (GtkRangePrivate *priv1,
2846 GtkRangePrivate *priv2)
2848 check_rectangle (priv1->slider, priv2->slider);
2849 check_rectangle (priv1->trough, priv2->trough);
2850 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2851 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2852 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2853 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2855 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2856 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2862 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2865 GtkRange *range = GTK_RANGE (data);
2866 GtkRangePrivate *priv = range->priv;
2867 GtkRangePrivate priv_aux = *priv;
2869 priv->recalc_marks = TRUE;
2870 priv->need_recalc = TRUE;
2871 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2873 /* now check whether the layout changed */
2874 if (layout_changed (priv, &priv_aux))
2875 gtk_widget_queue_draw (GTK_WIDGET (range));
2877 /* Note that we don't round off to priv->round_digits here.
2878 * that's because it's really broken to change a value
2879 * in response to a change signal on that value; round_digits
2880 * is therefore defined to be a filter on what the GtkRange
2881 * can input into the adjustment, not a filter that the GtkRange
2882 * will enforce on the adjustment.
2887 force_repaint (gpointer data)
2889 GtkRange *range = GTK_RANGE (data);
2890 GtkRangePrivate *priv = range->priv;
2891 GtkWidget *widget = GTK_WIDGET (range);
2893 priv->repaint_id = 0;
2894 if (gtk_widget_is_drawable (widget))
2895 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2901 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2904 GtkRange *range = GTK_RANGE (data);
2905 GtkRangePrivate *priv = range->priv;
2906 GtkRangePrivate priv_aux = *priv;
2908 priv->need_recalc = TRUE;
2909 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2911 /* now check whether the layout changed */
2912 if (layout_changed (priv, &priv_aux) ||
2913 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2915 gtk_widget_queue_draw (GTK_WIDGET (range));
2916 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2917 if (!priv->repaint_id)
2918 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2923 /* Note that we don't round off to priv->round_digits here.
2924 * that's because it's really broken to change a value
2925 * in response to a change signal on that value; round_digits
2926 * is therefore defined to be a filter on what the GtkRange
2927 * can input into the adjustment, not a filter that the GtkRange
2928 * will enforce on the adjustment.
2931 g_signal_emit (range, signals[VALUE_CHANGED], 0);
2935 gtk_range_style_updated (GtkWidget *widget)
2937 GtkRange *range = GTK_RANGE (widget);
2938 GtkRangePrivate *priv = range->priv;
2940 priv->need_recalc = TRUE;
2942 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
2946 apply_marks (GtkRange *range,
2950 GtkRangePrivate *priv = range->priv;
2954 for (i = 0; i < priv->n_marks; i++)
2956 mark = priv->marks[i];
2957 if ((oldval < mark && mark < *newval) ||
2958 (oldval > mark && mark > *newval))
2967 step_back (GtkRange *range)
2969 GtkRangePrivate *priv = range->priv;
2973 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
2974 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2975 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2976 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
2980 step_forward (GtkRange *range)
2982 GtkRangePrivate *priv = range->priv;
2986 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
2987 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
2988 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2989 GTK_SCROLL_STEP_FORWARD, newval, &handled);
2994 page_back (GtkRange *range)
2996 GtkRangePrivate *priv = range->priv;
3000 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3001 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3002 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3003 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3007 page_forward (GtkRange *range)
3009 GtkRangePrivate *priv = range->priv;
3013 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3014 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3015 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3016 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3020 scroll_begin (GtkRange *range)
3022 GtkRangePrivate *priv = range->priv;
3025 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3026 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3031 scroll_end (GtkRange *range)
3033 GtkRangePrivate *priv = range->priv;
3037 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3038 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3043 gtk_range_scroll (GtkRange *range,
3044 GtkScrollType scroll)
3046 GtkRangePrivate *priv = range->priv;
3047 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3051 case GTK_SCROLL_STEP_LEFT:
3052 if (should_invert (range))
3053 step_forward (range);
3058 case GTK_SCROLL_STEP_UP:
3059 if (should_invert (range))
3060 step_forward (range);
3065 case GTK_SCROLL_STEP_RIGHT:
3066 if (should_invert (range))
3069 step_forward (range);
3072 case GTK_SCROLL_STEP_DOWN:
3073 if (should_invert (range))
3076 step_forward (range);
3079 case GTK_SCROLL_STEP_BACKWARD:
3083 case GTK_SCROLL_STEP_FORWARD:
3084 step_forward (range);
3087 case GTK_SCROLL_PAGE_LEFT:
3088 if (should_invert (range))
3089 page_forward (range);
3094 case GTK_SCROLL_PAGE_UP:
3095 if (should_invert (range))
3096 page_forward (range);
3101 case GTK_SCROLL_PAGE_RIGHT:
3102 if (should_invert (range))
3105 page_forward (range);
3108 case GTK_SCROLL_PAGE_DOWN:
3109 if (should_invert (range))
3112 page_forward (range);
3115 case GTK_SCROLL_PAGE_BACKWARD:
3119 case GTK_SCROLL_PAGE_FORWARD:
3120 page_forward (range);
3123 case GTK_SCROLL_START:
3124 scroll_begin (range);
3127 case GTK_SCROLL_END:
3131 case GTK_SCROLL_JUMP:
3132 /* Used by CList, range doesn't use it. */
3135 case GTK_SCROLL_NONE:
3139 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3143 gtk_range_move_slider (GtkRange *range,
3144 GtkScrollType scroll)
3146 GtkRangePrivate *priv = range->priv;
3147 gboolean cursor_only;
3149 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3150 "gtk-keynav-cursor-only", &cursor_only,
3155 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3157 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3159 if (scroll == GTK_SCROLL_STEP_UP ||
3160 scroll == GTK_SCROLL_STEP_DOWN)
3163 gtk_widget_child_focus (toplevel,
3164 scroll == GTK_SCROLL_STEP_UP ?
3165 GTK_DIR_UP : GTK_DIR_DOWN);
3171 if (scroll == GTK_SCROLL_STEP_LEFT ||
3172 scroll == GTK_SCROLL_STEP_RIGHT)
3175 gtk_widget_child_focus (toplevel,
3176 scroll == GTK_SCROLL_STEP_LEFT ?
3177 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3183 if (! gtk_range_scroll (range, scroll))
3184 gtk_widget_error_bell (GTK_WIDGET (range));
3188 gtk_range_get_props (GtkRange *range,
3192 gint *trough_border,
3193 gint *stepper_spacing,
3194 gboolean *trough_under_steppers,
3195 gint *arrow_displacement_x,
3196 gint *arrow_displacement_y)
3198 GtkWidget *widget = GTK_WIDGET (range);
3199 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3200 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3201 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3203 gtk_widget_style_get (widget,
3204 "slider-width", &tmp_slider_width,
3205 "trough-border", &tmp_trough_border,
3206 "stepper-size", &tmp_stepper_size,
3207 "stepper-spacing", &tmp_stepper_spacing,
3208 "trough-under-steppers", &tmp_trough_under_steppers,
3209 "arrow-displacement-x", &tmp_arrow_displacement_x,
3210 "arrow-displacement-y", &tmp_arrow_displacement_y,
3213 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
3215 gint focus_line_width;
3218 gtk_widget_style_get (GTK_WIDGET (range),
3219 "focus-line-width", &focus_line_width,
3220 "focus-padding", &focus_padding,
3223 tmp_focus_width = focus_line_width + focus_padding;
3227 tmp_focus_width = 0;
3231 *slider_width = tmp_slider_width;
3234 *focus_width = tmp_focus_width;
3237 *trough_border = tmp_trough_border;
3240 *stepper_size = tmp_stepper_size;
3242 if (stepper_spacing)
3243 *stepper_spacing = tmp_stepper_spacing;
3245 if (trough_under_steppers)
3246 *trough_under_steppers = tmp_trough_under_steppers;
3248 if (arrow_displacement_x)
3249 *arrow_displacement_x = tmp_arrow_displacement_x;
3251 if (arrow_displacement_y)
3252 *arrow_displacement_y = tmp_arrow_displacement_y;
3255 #define POINT_IN_RECT(xcoord, ycoord, rect) \
3256 ((xcoord) >= (rect).x && \
3257 (xcoord) < ((rect).x + (rect).width) && \
3258 (ycoord) >= (rect).y && \
3259 (ycoord) < ((rect).y + (rect).height))
3261 /* Update mouse location, return TRUE if it changes */
3263 gtk_range_update_mouse_location (GtkRange *range)
3265 GtkRangePrivate *priv = range->priv;
3266 GtkAllocation allocation;
3269 GtkWidget *widget = GTK_WIDGET (range);
3271 old = priv->mouse_location;
3276 gtk_widget_get_allocation (widget, &allocation);
3278 if (priv->grab_location != MOUSE_OUTSIDE)
3279 priv->mouse_location = priv->grab_location;
3280 else if (POINT_IN_RECT (x, y, priv->stepper_a))
3281 priv->mouse_location = MOUSE_STEPPER_A;
3282 else if (POINT_IN_RECT (x, y, priv->stepper_b))
3283 priv->mouse_location = MOUSE_STEPPER_B;
3284 else if (POINT_IN_RECT (x, y, priv->stepper_c))
3285 priv->mouse_location = MOUSE_STEPPER_C;
3286 else if (POINT_IN_RECT (x, y, priv->stepper_d))
3287 priv->mouse_location = MOUSE_STEPPER_D;
3288 else if (POINT_IN_RECT (x, y, priv->slider))
3289 priv->mouse_location = MOUSE_SLIDER;
3290 else if (POINT_IN_RECT (x, y, priv->trough))
3291 priv->mouse_location = MOUSE_TROUGH;
3292 else if (POINT_IN_RECT (x, y, allocation))
3293 priv->mouse_location = MOUSE_WIDGET;
3295 priv->mouse_location = MOUSE_OUTSIDE;
3297 return old != priv->mouse_location;
3300 /* Clamp rect, border inside widget->allocation, such that we prefer
3301 * to take space from border not rect in all directions, and prefer to
3302 * give space to border over rect in one direction.
3305 clamp_dimensions (GtkWidget *widget,
3308 gboolean border_expands_horizontally)
3310 GtkAllocation allocation;
3311 gint extra, shortage;
3313 g_return_if_fail (rect->x == 0);
3314 g_return_if_fail (rect->y == 0);
3315 g_return_if_fail (rect->width >= 0);
3316 g_return_if_fail (rect->height >= 0);
3318 gtk_widget_get_allocation (widget, &allocation);
3322 extra = allocation.width - border->left - border->right - rect->width;
3325 if (border_expands_horizontally)
3327 border->left += extra / 2;
3328 border->right += extra / 2 + extra % 2;
3332 rect->width += extra;
3336 /* See if we can fit rect, if not kill the border */
3337 shortage = rect->width - allocation.width;
3340 rect->width = allocation.width;
3341 /* lose the border */
3347 /* See if we can fit rect with borders */
3348 shortage = rect->width + border->left + border->right - allocation.width;
3351 /* Shrink borders */
3352 border->left -= shortage / 2;
3353 border->right -= shortage / 2 + shortage % 2;
3359 extra = allocation.height - border->top - border->bottom - rect->height;
3362 if (border_expands_horizontally)
3364 /* don't expand border vertically */
3365 rect->height += extra;
3369 border->top += extra / 2;
3370 border->bottom += extra / 2 + extra % 2;
3374 /* See if we can fit rect, if not kill the border */
3375 shortage = rect->height - allocation.height;
3378 rect->height = allocation.height;
3379 /* lose the border */
3385 /* See if we can fit rect with borders */
3386 shortage = rect->height + border->top + border->bottom - allocation.height;
3389 /* Shrink borders */
3390 border->top -= shortage / 2;
3391 border->bottom -= shortage / 2 + shortage % 2;
3397 gtk_range_calc_request (GtkRange *range,
3402 gint stepper_spacing,
3403 GdkRectangle *range_rect,
3406 gboolean *has_steppers_ab,
3407 gboolean *has_steppers_cd,
3408 gint *slider_length_p)
3410 GtkRangePrivate *priv = range->priv;
3421 if (GTK_RANGE_GET_CLASS (range)->get_range_border)
3422 GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
3427 if (priv->has_stepper_a)
3429 if (priv->has_stepper_b)
3431 if (priv->has_stepper_c)
3433 if (priv->has_stepper_d)
3436 n_steppers = n_steppers_ab + n_steppers_cd;
3438 slider_length = priv->min_slider_size;
3443 /* We never expand to fill available space in the small dimension
3444 * (i.e. vertical scrollbars are always a fixed width)
3446 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3448 range_rect->width = (focus_width + trough_border) * 2 + slider_width;
3449 range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3451 if (n_steppers_ab > 0)
3452 range_rect->height += stepper_spacing;
3454 if (n_steppers_cd > 0)
3455 range_rect->height += stepper_spacing;
3459 range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3460 range_rect->height = (focus_width + trough_border) * 2 + slider_width;
3462 if (n_steppers_ab > 0)
3463 range_rect->width += stepper_spacing;
3465 if (n_steppers_cd > 0)
3466 range_rect->width += stepper_spacing;
3470 *n_steppers_p = n_steppers;
3472 if (has_steppers_ab)
3473 *has_steppers_ab = (n_steppers_ab > 0);
3475 if (has_steppers_cd)
3476 *has_steppers_cd = (n_steppers_cd > 0);
3478 if (slider_length_p)
3479 *slider_length_p = slider_length;
3483 gtk_range_calc_layout (GtkRange *range,
3484 gdouble adjustment_value)
3486 GtkRangePrivate *priv = range->priv;
3487 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
3491 gboolean has_steppers_ab;
3492 gboolean has_steppers_cd;
3493 gboolean trough_under_steppers;
3494 GdkRectangle range_rect;
3497 if (!priv->need_recalc)
3500 /* If we have a too-small allocation, we prefer the steppers over
3501 * the trough/slider, probably the steppers are a more useful
3502 * feature in small spaces.
3504 * Also, we prefer to draw the range itself rather than the border
3505 * areas if there's a conflict, since the borders will be decoration
3506 * not controls. Though this depends on subclasses cooperating by
3507 * not drawing on priv->range_rect.
3510 widget = GTK_WIDGET (range);
3512 gtk_range_get_props (range,
3513 &slider_width, &stepper_size,
3514 &focus_width, &trough_border,
3515 &stepper_spacing, &trough_under_steppers,
3518 gtk_range_calc_request (range,
3519 slider_width, stepper_size,
3520 focus_width, trough_border, stepper_spacing,
3521 &range_rect, &border, &n_steppers,
3522 &has_steppers_ab, &has_steppers_cd, &slider_length);
3524 /* We never expand to fill available space in the small dimension
3525 * (i.e. vertical scrollbars are always a fixed width)
3527 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3529 clamp_dimensions (widget, &range_rect, &border, TRUE);
3533 clamp_dimensions (widget, &range_rect, &border, FALSE);
3536 range_rect.x = border.left;
3537 range_rect.y = border.top;
3539 priv->range_rect = range_rect;
3541 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3543 gint stepper_width, stepper_height;
3545 /* Steppers are the width of the range, and stepper_size in
3546 * height, or if we don't have enough height, divided equally
3547 * among available space.
3549 stepper_width = range_rect.width - focus_width * 2;
3551 if (trough_under_steppers)
3552 stepper_width -= trough_border * 2;
3554 if (stepper_width < 1)
3555 stepper_width = range_rect.width; /* screw the trough border */
3557 if (n_steppers == 0)
3558 stepper_height = 0; /* avoid divide by n_steppers */
3560 stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
3564 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3565 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3567 if (priv->has_stepper_a)
3569 priv->stepper_a.width = stepper_width;
3570 priv->stepper_a.height = stepper_height;
3574 priv->stepper_a.width = 0;
3575 priv->stepper_a.height = 0;
3580 priv->stepper_b.x = priv->stepper_a.x;
3581 priv->stepper_b.y = priv->stepper_a.y + priv->stepper_a.height;
3583 if (priv->has_stepper_b)
3585 priv->stepper_b.width = stepper_width;
3586 priv->stepper_b.height = stepper_height;
3590 priv->stepper_b.width = 0;
3591 priv->stepper_b.height = 0;
3596 if (priv->has_stepper_d)
3598 priv->stepper_d.width = stepper_width;
3599 priv->stepper_d.height = stepper_height;
3603 priv->stepper_d.width = 0;
3604 priv->stepper_d.height = 0;
3607 priv->stepper_d.x = priv->stepper_a.x;
3608 priv->stepper_d.y = range_rect.y + range_rect.height - priv->stepper_d.height - focus_width - trough_border * trough_under_steppers;
3612 if (priv->has_stepper_c)
3614 priv->stepper_c.width = stepper_width;
3615 priv->stepper_c.height = stepper_height;
3619 priv->stepper_c.width = 0;
3620 priv->stepper_c.height = 0;
3623 priv->stepper_c.x = priv->stepper_a.x;
3624 priv->stepper_c.y = priv->stepper_d.y - priv->stepper_c.height;
3626 /* Now the trough is the remaining space between steppers B and C,
3627 * if any, minus spacing
3629 priv->trough.x = range_rect.x;
3630 priv->trough.y = priv->stepper_b.y + priv->stepper_b.height + stepper_spacing * has_steppers_ab;
3631 priv->trough.width = range_rect.width;
3632 priv->trough.height = priv->stepper_c.y - priv->trough.y - stepper_spacing * has_steppers_cd;
3634 /* Slider fits into the trough, with stepper_spacing on either side,
3635 * and the size/position based on the adjustment or fixed, depending.
3637 priv->slider.x = priv->trough.x + focus_width + trough_border;
3638 priv->slider.width = priv->trough.width - (focus_width + trough_border) * 2;
3640 /* Compute slider position/length */
3642 gint y, bottom, top, height;
3644 top = priv->trough.y;
3645 bottom = priv->trough.y + priv->trough.height;
3647 if (! trough_under_steppers)
3649 top += trough_border;
3650 bottom -= trough_border;
3653 /* slider height is the fraction (page_size /
3654 * total_adjustment_range) times the trough height in pixels
3657 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3658 height = ((bottom - top) * (gtk_adjustment_get_page_size (priv->adjustment) /
3659 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3661 height = priv->min_slider_size;
3663 if (height < priv->min_slider_size ||
3664 priv->slider_size_fixed)
3665 height = priv->min_slider_size;
3667 height = MIN (height, priv->trough.height);
3671 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3672 y += (bottom - top - height) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3673 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3675 y = CLAMP (y, top, bottom);
3677 if (should_invert (range))
3678 y = bottom - (y - top + height);
3681 priv->slider.height = height;
3683 /* These are publically exported */
3684 priv->slider_start = priv->slider.y;
3685 priv->slider_end = priv->slider.y + priv->slider.height;
3690 gint stepper_width, stepper_height;
3692 /* Steppers are the height of the range, and stepper_size in
3693 * width, or if we don't have enough width, divided equally
3694 * among available space.
3696 stepper_height = range_rect.height + focus_width * 2;
3698 if (trough_under_steppers)
3699 stepper_height -= trough_border * 2;
3701 if (stepper_height < 1)
3702 stepper_height = range_rect.height; /* screw the trough border */
3704 if (n_steppers == 0)
3705 stepper_width = 0; /* avoid divide by n_steppers */
3707 stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
3711 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3712 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3714 if (priv->has_stepper_a)
3716 priv->stepper_a.width = stepper_width;
3717 priv->stepper_a.height = stepper_height;
3721 priv->stepper_a.width = 0;
3722 priv->stepper_a.height = 0;
3727 priv->stepper_b.x = priv->stepper_a.x + priv->stepper_a.width;
3728 priv->stepper_b.y = priv->stepper_a.y;
3730 if (priv->has_stepper_b)
3732 priv->stepper_b.width = stepper_width;
3733 priv->stepper_b.height = stepper_height;
3737 priv->stepper_b.width = 0;
3738 priv->stepper_b.height = 0;
3743 if (priv->has_stepper_d)
3745 priv->stepper_d.width = stepper_width;
3746 priv->stepper_d.height = stepper_height;
3750 priv->stepper_d.width = 0;
3751 priv->stepper_d.height = 0;
3754 priv->stepper_d.x = range_rect.x + range_rect.width - priv->stepper_d.width - focus_width - trough_border * trough_under_steppers;
3755 priv->stepper_d.y = priv->stepper_a.y;
3760 if (priv->has_stepper_c)
3762 priv->stepper_c.width = stepper_width;
3763 priv->stepper_c.height = stepper_height;
3767 priv->stepper_c.width = 0;
3768 priv->stepper_c.height = 0;
3771 priv->stepper_c.x = priv->stepper_d.x - priv->stepper_c.width;
3772 priv->stepper_c.y = priv->stepper_a.y;
3774 /* Now the trough is the remaining space between steppers B and C,
3777 priv->trough.x = priv->stepper_b.x + priv->stepper_b.width + stepper_spacing * has_steppers_ab;
3778 priv->trough.y = range_rect.y;
3780 priv->trough.width = priv->stepper_c.x - priv->trough.x - stepper_spacing * has_steppers_cd;
3781 priv->trough.height = range_rect.height;
3783 /* Slider fits into the trough, with stepper_spacing on either side,
3784 * and the size/position based on the adjustment or fixed, depending.
3786 priv->slider.y = priv->trough.y + focus_width + trough_border;
3787 priv->slider.height = priv->trough.height - (focus_width + trough_border) * 2;
3789 /* Compute slider position/length */
3791 gint x, left, right, width;
3793 left = priv->trough.x;
3794 right = priv->trough.x + priv->trough.width;
3796 if (! trough_under_steppers)
3798 left += trough_border;
3799 right -= trough_border;
3802 /* slider width is the fraction (page_size /
3803 * total_adjustment_range) times the trough width in pixels
3806 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3807 width = ((right - left) * (gtk_adjustment_get_page_size (priv->adjustment) /
3808 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3810 width = priv->min_slider_size;
3812 if (width < priv->min_slider_size ||
3813 priv->slider_size_fixed)
3814 width = priv->min_slider_size;
3816 width = MIN (width, priv->trough.width);
3820 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3821 x += (right - left - width) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3822 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3824 x = CLAMP (x, left, right);
3826 if (should_invert (range))
3827 x = right - (x - left + width);
3830 priv->slider.width = width;
3832 /* These are publically exported */
3833 priv->slider_start = priv->slider.x;
3834 priv->slider_end = priv->slider.x + priv->slider.width;
3838 gtk_range_update_mouse_location (range);
3840 switch (priv->upper_sensitivity)
3842 case GTK_SENSITIVITY_AUTO:
3843 priv->upper_sensitive =
3844 (gtk_adjustment_get_value (priv->adjustment) <
3845 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3848 case GTK_SENSITIVITY_ON:
3849 priv->upper_sensitive = TRUE;
3852 case GTK_SENSITIVITY_OFF:
3853 priv->upper_sensitive = FALSE;
3857 switch (priv->lower_sensitivity)
3859 case GTK_SENSITIVITY_AUTO:
3860 priv->lower_sensitive =
3861 (gtk_adjustment_get_value (priv->adjustment) > gtk_adjustment_get_lower (priv->adjustment));
3864 case GTK_SENSITIVITY_ON:
3865 priv->lower_sensitive = TRUE;
3868 case GTK_SENSITIVITY_OFF:
3869 priv->lower_sensitive = FALSE;
3874 static GdkRectangle*
3875 get_area (GtkRange *range,
3876 MouseLocation location)
3878 GtkRangePrivate *priv = range->priv;
3882 case MOUSE_STEPPER_A:
3883 return &priv->stepper_a;
3884 case MOUSE_STEPPER_B:
3885 return &priv->stepper_b;
3886 case MOUSE_STEPPER_C:
3887 return &priv->stepper_c;
3888 case MOUSE_STEPPER_D:
3889 return &priv->stepper_d;
3891 return &priv->trough;
3893 return &priv->slider;
3899 g_warning (G_STRLOC": bug");
3904 gtk_range_calc_marks (GtkRange *range)
3906 GtkRangePrivate *priv = range->priv;
3909 if (!priv->recalc_marks)
3912 priv->recalc_marks = FALSE;
3914 for (i = 0; i < priv->n_marks; i++)
3916 priv->need_recalc = TRUE;
3917 gtk_range_calc_layout (range, priv->marks[i]);
3918 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3919 priv->mark_pos[i] = priv->slider.x + priv->slider.width / 2;
3921 priv->mark_pos[i] = priv->slider.y + priv->slider.height / 2;
3924 priv->need_recalc = TRUE;
3928 gtk_range_real_change_value (GtkRange *range,
3929 GtkScrollType scroll,
3932 GtkRangePrivate *priv = range->priv;
3934 /* potentially adjust the bounds _before_ we clamp */
3935 g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
3937 if (priv->restrict_to_fill_level)
3938 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
3941 value = CLAMP (value, gtk_adjustment_get_lower (priv->adjustment),
3942 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3944 if (priv->round_digits >= 0)
3949 i = priv->round_digits;
3954 value = floor ((value * power) + 0.5) / power;
3957 if (gtk_adjustment_get_value (priv->adjustment) != value)
3959 priv->need_recalc = TRUE;
3961 gtk_widget_queue_draw (GTK_WIDGET (range));
3963 gtk_adjustment_set_value (priv->adjustment, value);
3968 struct _GtkRangeStepTimer
3975 second_timeout (gpointer data)
3977 GtkRange *range = GTK_RANGE (data);
3978 GtkRangePrivate *priv = range->priv;
3980 gtk_range_scroll (range, priv->timer->step);
3986 initial_timeout (gpointer data)
3988 GtkRange *range = GTK_RANGE (data);
3989 GtkRangePrivate *priv = range->priv;
3990 GtkSettings *settings;
3993 settings = gtk_widget_get_settings (GTK_WIDGET (data));
3994 g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
3996 priv->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
4004 gtk_range_add_step_timer (GtkRange *range,
4007 GtkRangePrivate *priv = range->priv;
4008 GtkSettings *settings;
4011 g_return_if_fail (priv->timer == NULL);
4012 g_return_if_fail (step != GTK_SCROLL_NONE);
4014 settings = gtk_widget_get_settings (GTK_WIDGET (range));
4015 g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
4017 priv->timer = g_new (GtkRangeStepTimer, 1);
4019 priv->timer->timeout_id = gdk_threads_add_timeout (timeout,
4022 priv->timer->step = step;
4024 gtk_range_scroll (range, priv->timer->step);
4028 gtk_range_remove_step_timer (GtkRange *range)
4030 GtkRangePrivate *priv = range->priv;
4034 if (priv->timer->timeout_id != 0)
4035 g_source_remove (priv->timer->timeout_id);
4037 g_free (priv->timer);
4044 _gtk_range_set_stop_values (GtkRange *range,
4048 GtkRangePrivate *priv = range->priv;
4051 g_free (priv->marks);
4052 priv->marks = g_new (gdouble, n_values);
4054 g_free (priv->mark_pos);
4055 priv->mark_pos = g_new (gint, n_values);
4057 priv->n_marks = n_values;
4059 for (i = 0; i < n_values; i++)
4060 priv->marks[i] = values[i];
4062 priv->recalc_marks = TRUE;
4066 _gtk_range_get_stop_positions (GtkRange *range,
4069 GtkRangePrivate *priv = range->priv;
4071 gtk_range_calc_marks (range);
4074 *values = g_memdup (priv->mark_pos, priv->n_marks * sizeof (gint));
4076 return priv->n_marks;
4080 * gtk_range_set_round_digits:
4081 * @range: a #GtkRange
4082 * @round_digits: the precision in digits, or -1
4084 * Sets the number of digits to round the value to when
4085 * it changes. See #GtkRange::change-value.
4090 gtk_range_set_round_digits (GtkRange *range,
4093 g_return_if_fail (GTK_IS_RANGE (range));
4094 g_return_if_fail (round_digits >= -1);
4096 range->priv->round_digits = round_digits;
4098 g_object_notify (G_OBJECT (range), "round-digits");
4102 * gtk_range_get_round_digits:
4103 * @range: a #GtkRange
4105 * Gets the number of digits to round the value to when
4106 * it changes. See #GtkRange::change-value.
4108 * Return value: the number of digits to round to
4113 gtk_range_get_round_digits (GtkRange *range)
4115 g_return_val_if_fail (GTK_IS_RANGE (range), -1);
4117 return range->priv->round_digits;
4121 _gtk_range_set_steppers (GtkRange *range,
4127 range->priv->has_stepper_a = has_a;
4128 range->priv->has_stepper_b = has_b;
4129 range->priv->has_stepper_c = has_c;
4130 range->priv->has_stepper_d = has_d;