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, see <http://www.gnu.org/licenses/>.
20 * Modified by the GTK+ Team and others 1997-2004. See the AUTHORS
21 * file for a list of people on the GTK+ Team. See the ChangeLog
22 * files for a list of changes. These files are distributed with
23 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
32 #include "gtkmarshalers.h"
33 #include "gtkorientableprivate.h"
36 #include "gtkcolorscaleprivate.h"
37 #include "gtkscrollbar.h"
38 #include "gtkwindow.h"
39 #include "gtkprivate.h"
42 #include "gtktypebuiltins.h"
43 #include "a11y/gtkrangeaccessible.h"
47 * @Short_description: Base class for widgets which visualize an adjustment
50 * #GtkRange is the common base class for widgets which visualize an
51 * adjustment, e.g #GtkScale or #GtkScrollbar.
53 * Apart from signals for monitoring the parameters of the adjustment,
54 * #GtkRange provides properties and methods for influencing the sensitivity
55 * of the "steppers". It also provides properties and methods for setting a
56 * "fill level" on range widgets. See gtk_range_set_fill_level().
60 #define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
61 #define UPDATE_DELAY 300 /* Delay for queued update */
63 typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
73 MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
76 struct _GtkRangePrivate
78 MouseLocation mouse_location;
79 /* last mouse coords we got, or -1 if mouse is outside the range */
82 MouseLocation grab_location; /* "grabbed" mouse location, OUTSIDE for no grab */
84 GtkRangeStepTimer *timer;
86 GtkAdjustment *adjustment;
87 GtkSensitivityType lower_sensitivity;
88 GtkSensitivityType upper_sensitivity;
90 GdkDevice *grab_device;
91 GdkRectangle range_rect; /* Area of entire stepper + trough assembly in widget->window coords */
92 /* These are in widget->window coordinates */
93 GdkRectangle stepper_a;
94 GdkRectangle stepper_b;
95 GdkRectangle stepper_c;
96 GdkRectangle stepper_d;
97 GdkRectangle trough; /* The trough rectangle is the area the thumb can slide in, not the entire range_rect */
99 GdkWindow *event_window;
101 GQuark slider_detail_quark;
102 GQuark stepper_detail_quark[4];
104 GtkOrientation orientation;
110 gint min_slider_size;
112 gint round_digits; /* Round off value to this many digits, -1 for no rounding */
113 gint slide_initial_slider_position;
114 gint slide_initial_coordinate;
115 gint slider_start; /* Slider range along the long dimension, in widget->window coords */
120 /* Steppers are: < > ---- < >
123 guint has_stepper_a : 1;
124 guint has_stepper_b : 1;
125 guint has_stepper_c : 1;
126 guint has_stepper_d : 1;
130 guint need_recalc : 1;
131 guint recalc_marks : 1;
132 guint slider_size_fixed : 1;
133 guint trough_click_forward : 1; /* trough click was on the forward side of slider */
135 /* Stepper sensitivity */
136 guint lower_sensitive : 1;
137 guint upper_sensitive : 1;
139 /* The range has an origin, should be drawn differently. Used by GtkScale */
140 guint has_origin : 1;
143 guint show_fill_level : 1;
144 guint restrict_to_fill_level : 1;
146 guint grab_button : 8; /* 0 if none */
155 PROP_LOWER_STEPPER_SENSITIVITY,
156 PROP_UPPER_STEPPER_SENSITIVITY,
157 PROP_SHOW_FILL_LEVEL,
158 PROP_RESTRICT_TO_FILL_LEVEL,
178 static void gtk_range_set_property (GObject *object,
182 static void gtk_range_get_property (GObject *object,
186 static void gtk_range_destroy (GtkWidget *widget);
187 static void gtk_range_get_preferred_width
191 static void gtk_range_get_preferred_height
195 static void gtk_range_size_allocate (GtkWidget *widget,
196 GtkAllocation *allocation);
197 static void gtk_range_hierarchy_changed (GtkWidget *widget,
198 GtkWidget *previous_toplevel);
199 static void gtk_range_realize (GtkWidget *widget);
200 static void gtk_range_unrealize (GtkWidget *widget);
201 static void gtk_range_map (GtkWidget *widget);
202 static void gtk_range_unmap (GtkWidget *widget);
203 static gboolean gtk_range_draw (GtkWidget *widget,
205 static gboolean gtk_range_button_press (GtkWidget *widget,
206 GdkEventButton *event);
207 static gboolean gtk_range_button_release (GtkWidget *widget,
208 GdkEventButton *event);
209 static gboolean gtk_range_motion_notify (GtkWidget *widget,
210 GdkEventMotion *event);
211 static gboolean gtk_range_enter_notify (GtkWidget *widget,
212 GdkEventCrossing *event);
213 static gboolean gtk_range_leave_notify (GtkWidget *widget,
214 GdkEventCrossing *event);
215 static gboolean gtk_range_grab_broken (GtkWidget *widget,
216 GdkEventGrabBroken *event);
217 static void gtk_range_grab_notify (GtkWidget *widget,
218 gboolean was_grabbed);
219 static void gtk_range_state_flags_changed (GtkWidget *widget,
220 GtkStateFlags previous_state);
221 static gboolean gtk_range_scroll_event (GtkWidget *widget,
222 GdkEventScroll *event);
223 static void gtk_range_style_updated (GtkWidget *widget);
224 static void update_slider_position (GtkRange *range,
227 static void stop_scrolling (GtkRange *range);
228 static gboolean modify_allocation_for_window_grip (GtkWidget *widget,
229 GtkAllocation *allocation);
233 static void gtk_range_move_slider (GtkRange *range,
234 GtkScrollType scroll);
237 static gboolean gtk_range_scroll (GtkRange *range,
238 GtkScrollType scroll);
239 static gboolean gtk_range_update_mouse_location (GtkRange *range);
240 static void gtk_range_calc_layout (GtkRange *range,
241 gdouble adjustment_value);
242 static void gtk_range_calc_marks (GtkRange *range);
243 static void gtk_range_get_props (GtkRange *range,
248 gint *stepper_spacing,
249 gboolean *trough_under_steppers,
250 gint *arrow_displacement_x,
251 gint *arrow_displacement_y);
252 static void gtk_range_calc_request (GtkRange *range,
257 gint stepper_spacing,
258 GdkRectangle *range_rect,
261 gboolean *has_steppers_ab,
262 gboolean *has_steppers_cd,
263 gint *slider_length_p);
264 static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
266 static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
268 static void gtk_range_add_step_timer (GtkRange *range,
270 static void gtk_range_remove_step_timer (GtkRange *range);
271 static GdkRectangle* get_area (GtkRange *range,
272 MouseLocation location);
273 static gboolean gtk_range_real_change_value (GtkRange *range,
274 GtkScrollType scroll,
276 static gboolean gtk_range_key_press (GtkWidget *range,
280 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
281 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
284 static guint signals[LAST_SIGNAL];
288 gtk_range_class_init (GtkRangeClass *class)
290 GObjectClass *gobject_class;
291 GtkWidgetClass *widget_class;
293 gobject_class = G_OBJECT_CLASS (class);
294 widget_class = (GtkWidgetClass*) class;
296 gobject_class->set_property = gtk_range_set_property;
297 gobject_class->get_property = gtk_range_get_property;
299 widget_class->destroy = gtk_range_destroy;
300 widget_class->get_preferred_width = gtk_range_get_preferred_width;
301 widget_class->get_preferred_height = gtk_range_get_preferred_height;
302 widget_class->size_allocate = gtk_range_size_allocate;
303 widget_class->hierarchy_changed = gtk_range_hierarchy_changed;
304 widget_class->realize = gtk_range_realize;
305 widget_class->unrealize = gtk_range_unrealize;
306 widget_class->map = gtk_range_map;
307 widget_class->unmap = gtk_range_unmap;
308 widget_class->draw = gtk_range_draw;
309 widget_class->button_press_event = gtk_range_button_press;
310 widget_class->button_release_event = gtk_range_button_release;
311 widget_class->motion_notify_event = gtk_range_motion_notify;
312 widget_class->scroll_event = gtk_range_scroll_event;
313 widget_class->enter_notify_event = gtk_range_enter_notify;
314 widget_class->leave_notify_event = gtk_range_leave_notify;
315 widget_class->grab_broken_event = gtk_range_grab_broken;
316 widget_class->grab_notify = gtk_range_grab_notify;
317 widget_class->state_flags_changed = gtk_range_state_flags_changed;
318 widget_class->style_updated = gtk_range_style_updated;
319 widget_class->key_press_event = gtk_range_key_press;
321 class->move_slider = gtk_range_move_slider;
322 class->change_value = gtk_range_real_change_value;
324 class->slider_detail = "slider";
325 class->stepper_detail = "stepper";
328 * GtkRange::value-changed:
329 * @range: the #GtkRange that received the signal
331 * Emitted when the range value changes.
333 signals[VALUE_CHANGED] =
334 g_signal_new (I_("value-changed"),
335 G_TYPE_FROM_CLASS (gobject_class),
337 G_STRUCT_OFFSET (GtkRangeClass, value_changed),
339 _gtk_marshal_VOID__VOID,
343 * GtkRange::adjust-bounds:
344 * @range: the #GtkRange that received the signal
345 * @value: the value before we clamp
347 * Emitted before clamping a value, to give the application a
348 * chance to adjust the bounds.
350 signals[ADJUST_BOUNDS] =
351 g_signal_new (I_("adjust-bounds"),
352 G_TYPE_FROM_CLASS (gobject_class),
354 G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
356 _gtk_marshal_VOID__DOUBLE,
361 * GtkRange::move-slider:
362 * @range: the #GtkRange that received the signal
363 * @step: how to move the slider
365 * Virtual function that moves the slider. Used for keybindings.
367 signals[MOVE_SLIDER] =
368 g_signal_new (I_("move-slider"),
369 G_TYPE_FROM_CLASS (gobject_class),
370 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
371 G_STRUCT_OFFSET (GtkRangeClass, move_slider),
373 _gtk_marshal_VOID__ENUM,
375 GTK_TYPE_SCROLL_TYPE);
378 * GtkRange::change-value:
379 * @range: the #GtkRange that received the signal
380 * @scroll: the type of scroll action that was performed
381 * @value: the new value resulting from the scroll action
383 * The #GtkRange::change-value signal is emitted when a scroll action is
384 * performed on a range. It allows an application to determine the
385 * type of scroll event that occurred and the resultant new value.
386 * The application can handle the event itself and return %TRUE to
387 * prevent further processing. Or, by returning %FALSE, it can pass
388 * the event to other handlers until the default GTK+ handler is
391 * The value parameter is unrounded. An application that overrides
392 * the GtkRange::change-value signal is responsible for clamping the
393 * value to the desired number of decimal digits; the default GTK+
394 * handler clamps the value based on #GtkRange:round-digits.
396 * It is not possible to use delayed update policies in an overridden
397 * #GtkRange::change-value handler.
399 * Returns: %TRUE to prevent other handlers from being invoked for
400 * the signal, %FALSE to propagate the signal further
404 signals[CHANGE_VALUE] =
405 g_signal_new (I_("change-value"),
406 G_TYPE_FROM_CLASS (gobject_class),
408 G_STRUCT_OFFSET (GtkRangeClass, change_value),
409 _gtk_boolean_handled_accumulator, NULL,
410 _gtk_marshal_BOOLEAN__ENUM_DOUBLE,
412 GTK_TYPE_SCROLL_TYPE,
415 g_object_class_override_property (gobject_class,
419 g_object_class_install_property (gobject_class,
421 g_param_spec_object ("adjustment",
423 P_("The GtkAdjustment that contains the current value of this range object"),
425 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
427 g_object_class_install_property (gobject_class,
429 g_param_spec_boolean ("inverted",
431 P_("Invert direction slider moves to increase range value"),
433 GTK_PARAM_READWRITE));
435 g_object_class_install_property (gobject_class,
436 PROP_LOWER_STEPPER_SENSITIVITY,
437 g_param_spec_enum ("lower-stepper-sensitivity",
438 P_("Lower stepper sensitivity"),
439 P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
440 GTK_TYPE_SENSITIVITY_TYPE,
441 GTK_SENSITIVITY_AUTO,
442 GTK_PARAM_READWRITE));
444 g_object_class_install_property (gobject_class,
445 PROP_UPPER_STEPPER_SENSITIVITY,
446 g_param_spec_enum ("upper-stepper-sensitivity",
447 P_("Upper stepper sensitivity"),
448 P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
449 GTK_TYPE_SENSITIVITY_TYPE,
450 GTK_SENSITIVITY_AUTO,
451 GTK_PARAM_READWRITE));
454 * GtkRange:show-fill-level:
456 * The show-fill-level property controls whether fill level indicator
457 * graphics are displayed on the trough. See
458 * gtk_range_set_show_fill_level().
462 g_object_class_install_property (gobject_class,
463 PROP_SHOW_FILL_LEVEL,
464 g_param_spec_boolean ("show-fill-level",
465 P_("Show Fill Level"),
466 P_("Whether to display a fill level indicator graphics on trough."),
468 GTK_PARAM_READWRITE));
471 * GtkRange:restrict-to-fill-level:
473 * The restrict-to-fill-level property controls whether slider
474 * movement is restricted to an upper boundary set by the
475 * fill level. See gtk_range_set_restrict_to_fill_level().
479 g_object_class_install_property (gobject_class,
480 PROP_RESTRICT_TO_FILL_LEVEL,
481 g_param_spec_boolean ("restrict-to-fill-level",
482 P_("Restrict to Fill Level"),
483 P_("Whether to restrict the upper boundary to the fill level."),
485 GTK_PARAM_READWRITE));
488 * GtkRange:fill-level:
490 * The fill level (e.g. prebuffering of a network stream).
491 * See gtk_range_set_fill_level().
495 g_object_class_install_property (gobject_class,
497 g_param_spec_double ("fill-level",
499 P_("The fill level."),
503 GTK_PARAM_READWRITE));
506 * GtkRange:round-digits:
508 * The number of digits to round the value to when
509 * it changes, or -1. See #GtkRange::change-value.
513 g_object_class_install_property (gobject_class,
515 g_param_spec_int ("round-digits",
517 P_("The number of digits to round the value to."),
521 GTK_PARAM_READWRITE));
523 gtk_widget_class_install_style_property (widget_class,
524 g_param_spec_int ("slider-width",
526 P_("Width of scrollbar or scale thumb"),
530 GTK_PARAM_READABLE));
531 gtk_widget_class_install_style_property (widget_class,
532 g_param_spec_int ("trough-border",
534 P_("Spacing between thumb/steppers and outer trough bevel"),
538 GTK_PARAM_READABLE));
539 gtk_widget_class_install_style_property (widget_class,
540 g_param_spec_int ("stepper-size",
542 P_("Length of step buttons at ends"),
546 GTK_PARAM_READABLE));
548 * GtkRange:stepper-spacing:
550 * The spacing between the stepper buttons and thumb. Note that
551 * stepper-spacing won't have any effect if there are no steppers.
553 gtk_widget_class_install_style_property (widget_class,
554 g_param_spec_int ("stepper-spacing",
555 P_("Stepper Spacing"),
556 P_("Spacing between step buttons and thumb"),
560 GTK_PARAM_READABLE));
561 gtk_widget_class_install_style_property (widget_class,
562 g_param_spec_int ("arrow-displacement-x",
563 P_("Arrow X Displacement"),
564 P_("How far in the x direction to move the arrow when the button is depressed"),
568 GTK_PARAM_READABLE));
569 gtk_widget_class_install_style_property (widget_class,
570 g_param_spec_int ("arrow-displacement-y",
571 P_("Arrow Y Displacement"),
572 P_("How far in the y direction to move the arrow when the button is depressed"),
576 GTK_PARAM_READABLE));
579 * GtkRange:trough-under-steppers:
581 * Whether to draw the trough across the full length of the range or
582 * to exclude the steppers and their spacing.
586 gtk_widget_class_install_style_property (widget_class,
587 g_param_spec_boolean ("trough-under-steppers",
588 P_("Trough Under Steppers"),
589 P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
591 GTK_PARAM_READABLE));
594 * GtkRange:arrow-scaling:
596 * The arrow size proportion relative to the scroll button size.
600 gtk_widget_class_install_style_property (widget_class,
601 g_param_spec_float ("arrow-scaling",
603 P_("Arrow scaling with regard to scroll button size"),
605 GTK_PARAM_READABLE));
607 g_type_class_add_private (class, sizeof (GtkRangePrivate));
609 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_RANGE_ACCESSIBLE);
613 gtk_range_set_property (GObject *object,
618 GtkRange *range = GTK_RANGE (object);
619 GtkRangePrivate *priv = range->priv;
623 case PROP_ORIENTATION:
624 priv->orientation = g_value_get_enum (value);
626 priv->slider_detail_quark = 0;
627 priv->stepper_detail_quark[0] = 0;
628 priv->stepper_detail_quark[1] = 0;
629 priv->stepper_detail_quark[2] = 0;
630 priv->stepper_detail_quark[3] = 0;
632 _gtk_orientable_set_style_classes (GTK_ORIENTABLE (range));
633 gtk_widget_queue_resize (GTK_WIDGET (range));
635 case PROP_ADJUSTMENT:
636 gtk_range_set_adjustment (range, g_value_get_object (value));
639 gtk_range_set_inverted (range, g_value_get_boolean (value));
641 case PROP_LOWER_STEPPER_SENSITIVITY:
642 gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
644 case PROP_UPPER_STEPPER_SENSITIVITY:
645 gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
647 case PROP_SHOW_FILL_LEVEL:
648 gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
650 case PROP_RESTRICT_TO_FILL_LEVEL:
651 gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
653 case PROP_FILL_LEVEL:
654 gtk_range_set_fill_level (range, g_value_get_double (value));
656 case PROP_ROUND_DIGITS:
657 gtk_range_set_round_digits (range, g_value_get_int (value));
660 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
666 gtk_range_get_property (GObject *object,
671 GtkRange *range = GTK_RANGE (object);
672 GtkRangePrivate *priv = range->priv;
676 case PROP_ORIENTATION:
677 g_value_set_enum (value, priv->orientation);
679 case PROP_ADJUSTMENT:
680 g_value_set_object (value, priv->adjustment);
683 g_value_set_boolean (value, priv->inverted);
685 case PROP_LOWER_STEPPER_SENSITIVITY:
686 g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
688 case PROP_UPPER_STEPPER_SENSITIVITY:
689 g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
691 case PROP_SHOW_FILL_LEVEL:
692 g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
694 case PROP_RESTRICT_TO_FILL_LEVEL:
695 g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
697 case PROP_FILL_LEVEL:
698 g_value_set_double (value, gtk_range_get_fill_level (range));
700 case PROP_ROUND_DIGITS:
701 g_value_set_int (value, gtk_range_get_round_digits (range));
704 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
710 gtk_range_init (GtkRange *range)
712 GtkRangePrivate *priv;
714 range->priv = G_TYPE_INSTANCE_GET_PRIVATE (range,
719 gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
721 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
722 priv->adjustment = NULL;
723 priv->inverted = FALSE;
724 priv->flippable = FALSE;
725 priv->min_slider_size = 1;
726 priv->has_stepper_a = FALSE;
727 priv->has_stepper_b = FALSE;
728 priv->has_stepper_c = FALSE;
729 priv->has_stepper_d = FALSE;
730 priv->need_recalc = TRUE;
731 priv->round_digits = -1;
732 priv->mouse_location = MOUSE_OUTSIDE;
735 priv->grab_location = MOUSE_OUTSIDE;
736 priv->grab_button = 0;
737 priv->lower_sensitivity = GTK_SENSITIVITY_AUTO;
738 priv->upper_sensitivity = GTK_SENSITIVITY_AUTO;
739 priv->lower_sensitive = TRUE;
740 priv->upper_sensitive = TRUE;
741 priv->has_origin = FALSE;
742 priv->show_fill_level = FALSE;
743 priv->restrict_to_fill_level = TRUE;
744 priv->fill_level = G_MAXDOUBLE;
749 * gtk_range_get_adjustment:
750 * @range: a #GtkRange
752 * Get the #GtkAdjustment which is the "model" object for #GtkRange.
753 * See gtk_range_set_adjustment() for details.
754 * The return value does not have a reference added, so should not
757 * Return value: (transfer none): a #GtkAdjustment
760 gtk_range_get_adjustment (GtkRange *range)
762 GtkRangePrivate *priv;
764 g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
768 if (!priv->adjustment)
769 gtk_range_set_adjustment (range, NULL);
771 return priv->adjustment;
775 * gtk_range_set_adjustment:
776 * @range: a #GtkRange
777 * @adjustment: a #GtkAdjustment
779 * Sets the adjustment to be used as the "model" object for this range
780 * widget. The adjustment indicates the current range value, the
781 * minimum and maximum range values, the step/page increments used
782 * for keybindings and scrolling, and the page size. The page size
783 * is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
784 * indicates the size of the visible area of the widget being scrolled.
785 * The page size affects the size of the scrollbar slider.
788 gtk_range_set_adjustment (GtkRange *range,
789 GtkAdjustment *adjustment)
791 GtkRangePrivate *priv;
793 g_return_if_fail (GTK_IS_RANGE (range));
798 adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
800 g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
802 if (priv->adjustment != adjustment)
804 if (priv->adjustment)
806 g_signal_handlers_disconnect_by_func (priv->adjustment,
807 gtk_range_adjustment_changed,
809 g_signal_handlers_disconnect_by_func (priv->adjustment,
810 gtk_range_adjustment_value_changed,
812 g_object_unref (priv->adjustment);
815 priv->adjustment = adjustment;
816 g_object_ref_sink (adjustment);
818 g_signal_connect (adjustment, "changed",
819 G_CALLBACK (gtk_range_adjustment_changed),
821 g_signal_connect (adjustment, "value-changed",
822 G_CALLBACK (gtk_range_adjustment_value_changed),
825 gtk_range_adjustment_changed (adjustment, range);
826 g_object_notify (G_OBJECT (range), "adjustment");
831 * gtk_range_set_inverted:
832 * @range: a #GtkRange
833 * @setting: %TRUE to invert the range
835 * Ranges normally move from lower to higher values as the
836 * slider moves from top to bottom or left to right. Inverted
837 * ranges have higher values at the top or on the right rather than
838 * on the bottom or left.
841 gtk_range_set_inverted (GtkRange *range,
844 GtkRangePrivate *priv;
846 g_return_if_fail (GTK_IS_RANGE (range));
850 setting = setting != FALSE;
852 if (setting != priv->inverted)
854 priv->inverted = setting;
855 g_object_notify (G_OBJECT (range), "inverted");
856 gtk_widget_queue_resize (GTK_WIDGET (range));
861 * gtk_range_get_inverted:
862 * @range: a #GtkRange
864 * Gets the value set by gtk_range_set_inverted().
866 * Return value: %TRUE if the range is inverted
869 gtk_range_get_inverted (GtkRange *range)
871 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
873 return range->priv->inverted;
877 * gtk_range_set_flippable:
878 * @range: a #GtkRange
879 * @flippable: %TRUE to make the range flippable
881 * If a range is flippable, it will switch its direction if it is
882 * horizontal and its direction is %GTK_TEXT_DIR_RTL.
884 * See gtk_widget_get_direction().
889 gtk_range_set_flippable (GtkRange *range,
892 GtkRangePrivate *priv;
894 g_return_if_fail (GTK_IS_RANGE (range));
898 flippable = flippable ? TRUE : FALSE;
900 if (flippable != priv->flippable)
902 priv->flippable = flippable;
904 gtk_widget_queue_draw (GTK_WIDGET (range));
909 * gtk_range_get_flippable:
910 * @range: a #GtkRange
912 * Gets the value set by gtk_range_set_flippable().
914 * Return value: %TRUE if the range is flippable
919 gtk_range_get_flippable (GtkRange *range)
921 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
923 return range->priv->flippable;
927 * gtk_range_set_slider_size_fixed:
928 * @range: a #GtkRange
929 * @size_fixed: %TRUE to make the slider size constant
931 * Sets whether the range's slider has a fixed size, or a size that
932 * depends on its adjustment's page size.
934 * This function is useful mainly for #GtkRange subclasses.
939 gtk_range_set_slider_size_fixed (GtkRange *range,
942 GtkRangePrivate *priv;
944 g_return_if_fail (GTK_IS_RANGE (range));
948 if (size_fixed != priv->slider_size_fixed)
950 priv->slider_size_fixed = size_fixed ? TRUE : FALSE;
952 if (priv->adjustment && gtk_widget_get_mapped (GTK_WIDGET (range)))
954 priv->need_recalc = TRUE;
955 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
956 gtk_widget_queue_draw (GTK_WIDGET (range));
962 * gtk_range_get_slider_size_fixed:
963 * @range: a #GtkRange
965 * This function is useful mainly for #GtkRange subclasses.
967 * See gtk_range_set_slider_size_fixed().
969 * Return value: whether the range's slider has a fixed size.
974 gtk_range_get_slider_size_fixed (GtkRange *range)
976 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
978 return range->priv->slider_size_fixed;
982 * gtk_range_set_min_slider_size:
983 * @range: a #GtkRange
984 * @min_size: The slider's minimum size
986 * Sets the minimum size of the range's slider.
988 * This function is useful mainly for #GtkRange subclasses.
993 gtk_range_set_min_slider_size (GtkRange *range,
996 GtkRangePrivate *priv;
998 g_return_if_fail (GTK_IS_RANGE (range));
999 g_return_if_fail (min_size > 0);
1003 if (min_size != priv->min_slider_size)
1005 priv->min_slider_size = min_size;
1007 if (gtk_widget_is_drawable (GTK_WIDGET (range)))
1009 priv->need_recalc = TRUE;
1010 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1011 gtk_widget_queue_draw (GTK_WIDGET (range));
1017 * gtk_range_get_min_slider_size:
1018 * @range: a #GtkRange
1020 * This function is useful mainly for #GtkRange subclasses.
1022 * See gtk_range_set_min_slider_size().
1024 * Return value: The minimum size of the range's slider.
1029 gtk_range_get_min_slider_size (GtkRange *range)
1031 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1033 return range->priv->min_slider_size;
1037 * gtk_range_get_range_rect:
1038 * @range: a #GtkRange
1039 * @range_rect: (out): return location for the range rectangle
1041 * This function returns the area that contains the range's trough
1042 * and its steppers, in widget->window coordinates.
1044 * This function is useful mainly for #GtkRange subclasses.
1049 gtk_range_get_range_rect (GtkRange *range,
1050 GdkRectangle *range_rect)
1052 GtkRangePrivate *priv;
1054 g_return_if_fail (GTK_IS_RANGE (range));
1055 g_return_if_fail (range_rect != NULL);
1059 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1061 *range_rect = priv->range_rect;
1065 * gtk_range_get_slider_range:
1066 * @range: a #GtkRange
1067 * @slider_start: (out) (allow-none): return location for the slider's
1069 * @slider_end: (out) (allow-none): return location for the slider's
1072 * This function returns sliders range along the long dimension,
1073 * in widget->window coordinates.
1075 * This function is useful mainly for #GtkRange subclasses.
1080 gtk_range_get_slider_range (GtkRange *range,
1084 GtkRangePrivate *priv;
1086 g_return_if_fail (GTK_IS_RANGE (range));
1090 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1093 *slider_start = priv->slider_start;
1096 *slider_end = priv->slider_end;
1100 * gtk_range_set_lower_stepper_sensitivity:
1101 * @range: a #GtkRange
1102 * @sensitivity: the lower stepper's sensitivity policy.
1104 * Sets the sensitivity policy for the stepper that points to the
1105 * 'lower' end of the GtkRange's adjustment.
1110 gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
1111 GtkSensitivityType sensitivity)
1113 GtkRangePrivate *priv;
1115 g_return_if_fail (GTK_IS_RANGE (range));
1119 if (priv->lower_sensitivity != sensitivity)
1121 priv->lower_sensitivity = sensitivity;
1123 priv->need_recalc = TRUE;
1124 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1125 gtk_widget_queue_draw (GTK_WIDGET (range));
1127 g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
1132 * gtk_range_get_lower_stepper_sensitivity:
1133 * @range: a #GtkRange
1135 * Gets the sensitivity policy for the stepper that points to the
1136 * 'lower' end of the GtkRange's adjustment.
1138 * Return value: The lower stepper's sensitivity policy.
1143 gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
1145 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1147 return range->priv->lower_sensitivity;
1151 * gtk_range_set_upper_stepper_sensitivity:
1152 * @range: a #GtkRange
1153 * @sensitivity: the upper stepper's sensitivity policy.
1155 * Sets the sensitivity policy for the stepper that points to the
1156 * 'upper' end of the GtkRange's adjustment.
1161 gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
1162 GtkSensitivityType sensitivity)
1164 GtkRangePrivate *priv;
1166 g_return_if_fail (GTK_IS_RANGE (range));
1170 if (priv->upper_sensitivity != sensitivity)
1172 priv->upper_sensitivity = sensitivity;
1174 priv->need_recalc = TRUE;
1175 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1176 gtk_widget_queue_draw (GTK_WIDGET (range));
1178 g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
1183 * gtk_range_get_upper_stepper_sensitivity:
1184 * @range: a #GtkRange
1186 * Gets the sensitivity policy for the stepper that points to the
1187 * 'upper' end of the GtkRange's adjustment.
1189 * Return value: The upper stepper's sensitivity policy.
1194 gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
1196 g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
1198 return range->priv->upper_sensitivity;
1202 * gtk_range_set_increments:
1203 * @range: a #GtkRange
1207 * Sets the step and page sizes for the range.
1208 * The step size is used when the user clicks the #GtkScrollbar
1209 * arrows or moves #GtkScale via arrow keys. The page size
1210 * is used for example when moving via Page Up or Page Down keys.
1213 gtk_range_set_increments (GtkRange *range,
1217 GtkAdjustment *adjustment;
1219 g_return_if_fail (GTK_IS_RANGE (range));
1221 adjustment = range->priv->adjustment;
1223 gtk_adjustment_configure (adjustment,
1224 gtk_adjustment_get_value (adjustment),
1225 gtk_adjustment_get_lower (adjustment),
1226 gtk_adjustment_get_upper (adjustment),
1229 gtk_adjustment_get_page_size (adjustment));
1233 * gtk_range_set_range:
1234 * @range: a #GtkRange
1235 * @min: minimum range value
1236 * @max: maximum range value
1238 * Sets the allowable values in the #GtkRange, and clamps the range
1239 * value to be between @min and @max. (If the range has a non-zero
1240 * page size, it is clamped between @min and @max - page-size.)
1243 gtk_range_set_range (GtkRange *range,
1247 GtkRangePrivate *priv;
1248 GtkAdjustment *adjustment;
1251 g_return_if_fail (GTK_IS_RANGE (range));
1252 g_return_if_fail (min <= max);
1255 adjustment = priv->adjustment;
1257 value = gtk_adjustment_get_value (adjustment);
1258 if (priv->restrict_to_fill_level)
1259 value = MIN (value, MAX (gtk_adjustment_get_lower (adjustment),
1262 gtk_adjustment_configure (adjustment,
1266 gtk_adjustment_get_step_increment (adjustment),
1267 gtk_adjustment_get_page_increment (adjustment),
1268 gtk_adjustment_get_page_size (adjustment));
1272 * gtk_range_set_value:
1273 * @range: a #GtkRange
1274 * @value: new value of the range
1276 * Sets the current value of the range; if the value is outside the
1277 * minimum or maximum range values, it will be clamped to fit inside
1278 * them. The range emits the #GtkRange::value-changed signal if the
1282 gtk_range_set_value (GtkRange *range,
1285 GtkRangePrivate *priv;
1287 g_return_if_fail (GTK_IS_RANGE (range));
1291 if (priv->restrict_to_fill_level)
1292 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
1295 gtk_adjustment_set_value (priv->adjustment, value);
1299 * gtk_range_get_value:
1300 * @range: a #GtkRange
1302 * Gets the current value of the range.
1304 * Return value: current value of the range.
1307 gtk_range_get_value (GtkRange *range)
1309 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1311 return gtk_adjustment_get_value (range->priv->adjustment);
1315 * gtk_range_set_show_fill_level:
1316 * @range: A #GtkRange
1317 * @show_fill_level: Whether a fill level indicator graphics is shown.
1319 * Sets whether a graphical fill level is show on the trough. See
1320 * gtk_range_set_fill_level() for a general description of the fill
1326 gtk_range_set_show_fill_level (GtkRange *range,
1327 gboolean show_fill_level)
1329 GtkRangePrivate *priv;
1331 g_return_if_fail (GTK_IS_RANGE (range));
1335 show_fill_level = show_fill_level ? TRUE : FALSE;
1337 if (show_fill_level != priv->show_fill_level)
1339 priv->show_fill_level = show_fill_level;
1340 g_object_notify (G_OBJECT (range), "show-fill-level");
1341 gtk_widget_queue_draw (GTK_WIDGET (range));
1346 * gtk_range_get_show_fill_level:
1347 * @range: A #GtkRange
1349 * Gets whether the range displays the fill level graphically.
1351 * Return value: %TRUE if @range shows the fill level.
1356 gtk_range_get_show_fill_level (GtkRange *range)
1358 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1360 return range->priv->show_fill_level;
1364 * gtk_range_set_restrict_to_fill_level:
1365 * @range: A #GtkRange
1366 * @restrict_to_fill_level: Whether the fill level restricts slider movement.
1368 * Sets whether the slider is restricted to the fill level. See
1369 * gtk_range_set_fill_level() for a general description of the fill
1375 gtk_range_set_restrict_to_fill_level (GtkRange *range,
1376 gboolean restrict_to_fill_level)
1378 GtkRangePrivate *priv;
1380 g_return_if_fail (GTK_IS_RANGE (range));
1384 restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
1386 if (restrict_to_fill_level != priv->restrict_to_fill_level)
1388 priv->restrict_to_fill_level = restrict_to_fill_level;
1389 g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
1391 gtk_range_set_value (range, gtk_range_get_value (range));
1396 * gtk_range_get_restrict_to_fill_level:
1397 * @range: A #GtkRange
1399 * Gets whether the range is restricted to the fill level.
1401 * Return value: %TRUE if @range is restricted to the fill level.
1406 gtk_range_get_restrict_to_fill_level (GtkRange *range)
1408 g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
1410 return range->priv->restrict_to_fill_level;
1414 * gtk_range_set_fill_level:
1415 * @range: a #GtkRange
1416 * @fill_level: the new position of the fill level indicator
1418 * Set the new position of the fill level indicator.
1420 * The "fill level" is probably best described by its most prominent
1421 * use case, which is an indicator for the amount of pre-buffering in
1422 * a streaming media player. In that use case, the value of the range
1423 * would indicate the current play position, and the fill level would
1424 * be the position up to which the file/stream has been downloaded.
1426 * This amount of prebuffering can be displayed on the range's trough
1427 * and is themeable separately from the trough. To enable fill level
1428 * display, use gtk_range_set_show_fill_level(). The range defaults
1429 * to not showing the fill level.
1431 * Additionally, it's possible to restrict the range's slider position
1432 * to values which are smaller than the fill level. This is controller
1433 * by gtk_range_set_restrict_to_fill_level() and is by default
1439 gtk_range_set_fill_level (GtkRange *range,
1442 GtkRangePrivate *priv;
1444 g_return_if_fail (GTK_IS_RANGE (range));
1448 if (fill_level != priv->fill_level)
1450 priv->fill_level = fill_level;
1451 g_object_notify (G_OBJECT (range), "fill-level");
1453 if (priv->show_fill_level)
1454 gtk_widget_queue_draw (GTK_WIDGET (range));
1456 if (priv->restrict_to_fill_level)
1457 gtk_range_set_value (range, gtk_range_get_value (range));
1462 * gtk_range_get_fill_level:
1463 * @range: A #GtkRange
1465 * Gets the current position of the fill level indicator.
1467 * Return value: The current fill level
1472 gtk_range_get_fill_level (GtkRange *range)
1474 g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
1476 return range->priv->fill_level;
1480 should_invert (GtkRange *range)
1482 GtkRangePrivate *priv = range->priv;
1484 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1486 (priv->inverted && !priv->flippable) ||
1487 (priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
1488 (!priv->inverted && priv->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1490 return priv->inverted;
1494 gtk_range_destroy (GtkWidget *widget)
1496 GtkRange *range = GTK_RANGE (widget);
1497 GtkRangePrivate *priv = range->priv;
1499 gtk_range_remove_step_timer (range);
1501 if (priv->repaint_id)
1502 g_source_remove (priv->repaint_id);
1503 priv->repaint_id = 0;
1505 if (priv->adjustment)
1507 g_signal_handlers_disconnect_by_func (priv->adjustment,
1508 gtk_range_adjustment_changed,
1510 g_signal_handlers_disconnect_by_func (priv->adjustment,
1511 gtk_range_adjustment_value_changed,
1513 g_object_unref (priv->adjustment);
1514 priv->adjustment = NULL;
1519 g_free (priv->marks);
1521 g_free (priv->mark_pos);
1522 priv->mark_pos = NULL;
1526 GTK_WIDGET_CLASS (gtk_range_parent_class)->destroy (widget);
1530 gtk_range_get_preferred_width (GtkWidget *widget,
1535 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1536 GdkRectangle range_rect;
1539 range = GTK_RANGE (widget);
1541 gtk_range_get_props (range,
1542 &slider_width, &stepper_size,
1543 &focus_width, &trough_border,
1544 &stepper_spacing, NULL,
1547 gtk_range_calc_request (range,
1548 slider_width, stepper_size,
1549 focus_width, trough_border, stepper_spacing,
1550 &range_rect, &border, NULL, NULL, NULL, NULL);
1552 *minimum = *natural = range_rect.width + border.left + border.right;
1556 gtk_range_get_preferred_height (GtkWidget *widget,
1561 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
1562 GdkRectangle range_rect;
1565 range = GTK_RANGE (widget);
1567 gtk_range_get_props (range,
1568 &slider_width, &stepper_size,
1569 &focus_width, &trough_border,
1570 &stepper_spacing, NULL,
1573 gtk_range_calc_request (range,
1574 slider_width, stepper_size,
1575 focus_width, trough_border, stepper_spacing,
1576 &range_rect, &border, NULL, NULL, NULL, NULL);
1578 *minimum = *natural = range_rect.height + border.top + border.bottom;
1582 modify_allocation_for_window_grip (GtkWidget *widget,
1583 GtkAllocation *allocation)
1585 GtkRange *range = GTK_RANGE (widget);
1586 GtkRangePrivate *priv = range->priv;
1587 GtkWidget *window, *parent;
1588 GdkRectangle grip_rect;
1589 GdkRectangle translated_rect;
1593 window = gtk_widget_get_toplevel (widget);
1594 if (!GTK_IS_WINDOW (window))
1597 if (!gtk_window_resize_grip_is_visible (GTK_WINDOW (window)))
1600 /* Get the area of the window's corner grip */
1601 gtk_window_get_resize_grip_area (GTK_WINDOW (window), &grip_rect);
1606 /* Translate the stepper's area into window coords.
1607 * This is slightly tricky. We can't just use
1608 * gtk_widget_translate_coordinates (widget, window, 0, 0, &x, &y)
1609 * since that translates wrt to the _current_ allocation
1610 * and will lead to alternating between overlap and nonoverlap
1611 * for successive allocations.
1612 * Therefore, we find the window-widget to whose window allocation
1613 * is relative, and translate from there upwards.
1616 while (gtk_widget_get_window (parent) == gtk_widget_get_window (widget) &&
1619 parent = gtk_widget_get_parent (parent);
1622 if (parent == window)
1623 translated_rect = *allocation;
1626 gtk_widget_translate_coordinates (parent,
1628 allocation->x, allocation->y,
1630 translated_rect.x = x;
1631 translated_rect.y = y;
1632 translated_rect.width = allocation->width;
1633 translated_rect.height = allocation->height;
1636 /* If the stepper button intersects the window resize grip.. */
1637 if (gdk_rectangle_intersect (&grip_rect, &translated_rect, &grip_rect))
1639 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1641 allocation->width -= grip_rect.width;
1642 if (gtk_widget_get_direction (window) == GTK_TEXT_DIR_RTL)
1643 allocation->x += grip_rect.width;
1647 allocation->height -= grip_rect.height;
1657 gtk_range_size_allocate (GtkWidget *widget,
1658 GtkAllocation *allocation)
1660 GtkRange *range = GTK_RANGE (widget);
1661 GtkRangePrivate *priv = range->priv;
1663 modify_allocation_for_window_grip (widget, allocation);
1664 gtk_widget_set_allocation (widget, allocation);
1666 priv->recalc_marks = TRUE;
1668 priv->need_recalc = TRUE;
1669 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1671 if (gtk_widget_get_realized (widget))
1672 gdk_window_move_resize (priv->event_window,
1673 allocation->x, allocation->y,
1674 allocation->width, allocation->height);
1678 resize_grip_visible_changed (GObject *object,
1682 gtk_widget_queue_resize (GTK_WIDGET (user_data));
1686 gtk_range_hierarchy_changed (GtkWidget *widget,
1687 GtkWidget *previous_toplevel)
1691 if (previous_toplevel)
1692 g_signal_handlers_disconnect_by_func (previous_toplevel,
1693 G_CALLBACK (resize_grip_visible_changed),
1695 window = gtk_widget_get_toplevel (widget);
1696 if (gtk_widget_is_toplevel (window))
1697 g_signal_connect (window, "notify::resize-grip-visible",
1698 G_CALLBACK (resize_grip_visible_changed), widget);
1702 gtk_range_realize (GtkWidget *widget)
1704 GtkAllocation allocation;
1705 GtkRange *range = GTK_RANGE (widget);
1706 GtkRangePrivate *priv = range->priv;
1708 GdkWindowAttr attributes;
1709 gint attributes_mask;
1711 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
1713 gtk_widget_set_realized (widget, TRUE);
1715 window = gtk_widget_get_parent_window (widget);
1716 gtk_widget_set_window (widget, window);
1717 g_object_ref (window);
1719 gtk_widget_get_allocation (widget, &allocation);
1720 if (modify_allocation_for_window_grip (widget, &allocation))
1721 gtk_widget_set_allocation (widget, &allocation);
1723 attributes.window_type = GDK_WINDOW_CHILD;
1724 attributes.x = allocation.x;
1725 attributes.y = allocation.y;
1726 attributes.width = allocation.width;
1727 attributes.height = allocation.height;
1728 attributes.wclass = GDK_INPUT_ONLY;
1729 attributes.event_mask = gtk_widget_get_events (widget);
1730 attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
1731 GDK_BUTTON_RELEASE_MASK |
1732 GDK_ENTER_NOTIFY_MASK |
1733 GDK_LEAVE_NOTIFY_MASK |
1734 GDK_POINTER_MOTION_MASK |
1735 GDK_POINTER_MOTION_HINT_MASK);
1737 attributes_mask = GDK_WA_X | GDK_WA_Y;
1739 priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
1740 &attributes, attributes_mask);
1741 gdk_window_set_user_data (priv->event_window, range);
1745 gtk_range_unrealize (GtkWidget *widget)
1747 GtkRange *range = GTK_RANGE (widget);
1748 GtkRangePrivate *priv = range->priv;
1750 gtk_range_remove_step_timer (range);
1752 gdk_window_set_user_data (priv->event_window, NULL);
1753 gdk_window_destroy (priv->event_window);
1754 priv->event_window = NULL;
1756 GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
1760 gtk_range_map (GtkWidget *widget)
1762 GtkRange *range = GTK_RANGE (widget);
1763 GtkRangePrivate *priv = range->priv;
1765 gdk_window_show (priv->event_window);
1767 GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
1771 gtk_range_unmap (GtkWidget *widget)
1773 GtkRange *range = GTK_RANGE (widget);
1774 GtkRangePrivate *priv = range->priv;
1776 stop_scrolling (range);
1778 gdk_window_hide (priv->event_window);
1780 GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
1784 _gtk_range_update_context_for_stepper (GtkRange *range,
1785 GtkStyleContext *context,
1788 GtkRangePrivate *priv = range->priv;
1789 GtkJunctionSides sides = 0;
1790 gboolean vertical, is_rtl;
1792 vertical = (priv->orientation == GTK_ORIENTATION_VERTICAL);
1793 is_rtl = (gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
1795 /* Take junction sides from what's been
1796 * previously set to the widget itself
1798 sides = gtk_style_context_get_junction_sides (context);
1801 sides &= ~(GTK_JUNCTION_TOP | GTK_JUNCTION_BOTTOM);
1803 sides &= ~(GTK_JUNCTION_LEFT | GTK_JUNCTION_RIGHT);
1809 sides |= GTK_JUNCTION_BOTTOM;
1811 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1814 if (priv->has_stepper_a)
1817 sides |= GTK_JUNCTION_TOP;
1819 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1823 sides |= GTK_JUNCTION_BOTTOM;
1825 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1828 if (priv->has_stepper_d)
1831 sides |= GTK_JUNCTION_BOTTOM;
1833 sides |= (is_rtl) ? GTK_JUNCTION_LEFT : GTK_JUNCTION_RIGHT;
1837 sides |= GTK_JUNCTION_TOP;
1839 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1843 sides |= GTK_JUNCTION_TOP;
1845 sides |= (is_rtl) ? GTK_JUNCTION_RIGHT : GTK_JUNCTION_LEFT;
1849 gtk_style_context_set_junction_sides (context, sides);
1853 draw_stepper (GtkRange *range,
1856 GtkArrowType arrow_type,
1858 gboolean prelighted,
1859 GtkStateFlags state)
1861 GtkRangePrivate *priv = range->priv;
1862 GtkAllocation allocation;
1863 GtkStyleContext *context;
1864 GtkWidget *widget = GTK_WIDGET (range);
1865 gfloat arrow_scaling;
1869 gdouble arrow_size, angle;
1870 gboolean arrow_sensitive;
1875 rect = &priv->stepper_a;
1878 rect = &priv->stepper_b;
1881 rect = &priv->stepper_c;
1884 rect = &priv->stepper_d;
1887 g_assert_not_reached ();
1890 arrow_sensitive = TRUE;
1892 gtk_widget_get_allocation (widget, &allocation);
1894 if ((!priv->inverted && (arrow_type == GTK_ARROW_DOWN ||
1895 arrow_type == GTK_ARROW_RIGHT)) ||
1896 (priv->inverted && (arrow_type == GTK_ARROW_UP ||
1897 arrow_type == GTK_ARROW_LEFT)))
1899 arrow_sensitive = priv->upper_sensitive;
1903 arrow_sensitive = priv->lower_sensitive;
1906 state &= ~(GTK_STATE_FLAG_ACTIVE | GTK_STATE_FLAG_PRELIGHT);
1908 if ((state & GTK_STATE_FLAG_INSENSITIVE) || !arrow_sensitive)
1910 state |= GTK_STATE_FLAG_INSENSITIVE;
1915 state |= GTK_STATE_FLAG_ACTIVE;
1917 state |= GTK_STATE_FLAG_PRELIGHT;
1920 context = gtk_widget_get_style_context (widget);
1922 gtk_style_context_save (context);
1924 /* don't set juction sides on scrollbar steppers */
1925 if (gtk_style_context_has_class (context, GTK_STYLE_CLASS_SCROLLBAR))
1926 gtk_style_context_set_junction_sides (context, GTK_JUNCTION_NONE);
1928 _gtk_range_update_context_for_stepper (range, context, stepper);
1930 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
1931 gtk_style_context_set_state (context, state);
1935 case GTK_ARROW_RIGHT:
1936 gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
1938 case GTK_ARROW_DOWN:
1939 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
1941 case GTK_ARROW_LEFT:
1942 gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
1946 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
1950 gtk_render_background (context, cr,
1952 rect->width, rect->height);
1953 gtk_render_frame (context, cr,
1955 rect->width, rect->height);
1957 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
1959 arrow_size = MIN (rect->width, rect->height) * arrow_scaling;
1960 arrow_x = rect->x + (rect->width - arrow_size) / 2;
1961 arrow_y = rect->y + (rect->height - arrow_size) / 2;
1963 if (clicked && arrow_sensitive)
1965 gint arrow_displacement_x;
1966 gint arrow_displacement_y;
1968 gtk_range_get_props (GTK_RANGE (widget),
1969 NULL, NULL, NULL, NULL, NULL, NULL,
1970 &arrow_displacement_x, &arrow_displacement_y);
1972 arrow_x += arrow_displacement_x;
1973 arrow_y += arrow_displacement_y;
1978 case GTK_ARROW_RIGHT:
1981 case GTK_ARROW_DOWN:
1984 case GTK_ARROW_LEFT:
1985 angle = 3 * (G_PI / 2);
1993 gtk_render_arrow (context, cr,
1998 gtk_style_context_restore (context);
2002 gtk_range_draw (GtkWidget *widget,
2005 GtkRange *range = GTK_RANGE (widget);
2006 GtkRangePrivate *priv = range->priv;
2007 GtkStateFlags widget_state;
2008 gint focus_line_width = 0;
2009 gint focus_padding = 0;
2010 gboolean draw_trough = TRUE;
2011 gboolean draw_slider = TRUE;
2012 GtkStyleContext *context;
2014 context = gtk_widget_get_style_context (widget);
2016 if (GTK_IS_SCALE (widget) &&
2017 gtk_adjustment_get_upper (priv->adjustment) == gtk_adjustment_get_lower (priv->adjustment))
2020 draw_slider = FALSE;
2022 if (GTK_IS_COLOR_SCALE (widget))
2024 draw_trough = FALSE;
2028 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
2029 gtk_widget_style_get (GTK_WIDGET (range),
2030 "focus-line-width", &focus_line_width,
2031 "focus-padding", &focus_padding,
2034 /* we're now exposing, so there's no need to force early repaints */
2035 if (priv->repaint_id)
2036 g_source_remove (priv->repaint_id);
2037 priv->repaint_id = 0;
2039 gtk_range_calc_marks (range);
2040 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2042 widget_state = gtk_widget_get_state_flags (widget);
2044 /* Just to be confusing, we draw the trough for the whole
2045 * range rectangle, not the trough rectangle (the trough
2046 * rectangle is just for hit detection)
2049 gdk_cairo_rectangle (cr, &priv->range_rect);
2053 gint x = (priv->range_rect.x +
2054 focus_line_width + focus_padding);
2055 gint y = (priv->range_rect.y +
2056 focus_line_width + focus_padding);
2057 gint width = (priv->range_rect.width -
2058 2 * (focus_line_width + focus_padding));
2059 gint height = (priv->range_rect.height -
2060 2 * (focus_line_width + focus_padding));
2061 gboolean trough_under_steppers;
2063 gint stepper_spacing;
2065 gtk_widget_style_get (GTK_WIDGET (range),
2066 "trough-under-steppers", &trough_under_steppers,
2067 "stepper-size", &stepper_size,
2068 "stepper-spacing", &stepper_spacing,
2071 if (!trough_under_steppers)
2076 if (priv->has_stepper_a)
2077 offset += stepper_size;
2079 if (priv->has_stepper_b)
2080 offset += stepper_size;
2084 if (priv->has_stepper_c)
2085 shorter += stepper_size;
2087 if (priv->has_stepper_d)
2088 shorter += stepper_size;
2090 if (priv->has_stepper_a || priv->has_stepper_b)
2092 offset += stepper_spacing;
2093 shorter += stepper_spacing;
2096 if (priv->has_stepper_c || priv->has_stepper_d)
2098 shorter += stepper_spacing;
2101 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2113 gtk_style_context_save (context);
2114 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
2118 if (!priv->has_origin)
2120 gtk_render_background (context, cr,
2121 x, y, width, height);
2123 gtk_render_frame (context, cr,
2124 x, y, width, height);
2128 gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
2130 gint trough_change_pos_x = width;
2131 gint trough_change_pos_y = height;
2133 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2134 trough_change_pos_x = (priv->slider.x +
2135 priv->slider.width / 2 -
2138 trough_change_pos_y = (priv->slider.y +
2139 priv->slider.height / 2 -
2142 gtk_style_context_save (context);
2143 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2145 gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
2148 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2151 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
2153 gtk_render_background (context, cr, x, y,
2154 trough_change_pos_x,
2155 trough_change_pos_y);
2157 gtk_render_frame (context, cr, x, y,
2158 trough_change_pos_x,
2159 trough_change_pos_y);
2161 gtk_style_context_restore (context);
2163 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2164 trough_change_pos_y = 0;
2166 trough_change_pos_x = 0;
2168 gtk_style_context_save (context);
2169 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2171 gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
2174 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2178 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
2179 gtk_style_context_add_class (context, GTK_STYLE_CLASS_HIGHLIGHT);
2182 gtk_render_background (context, cr,
2183 x + trough_change_pos_x, y + trough_change_pos_y,
2184 width - trough_change_pos_x,
2185 height - trough_change_pos_y);
2187 gtk_render_frame (context, cr,
2188 x + trough_change_pos_x, y + trough_change_pos_y,
2189 width - trough_change_pos_x,
2190 height - trough_change_pos_y);
2192 gtk_style_context_restore (context);
2196 gtk_style_context_restore (context);
2198 if (priv->show_fill_level &&
2199 gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) -
2200 gtk_adjustment_get_lower (priv->adjustment) != 0)
2202 gdouble fill_level = priv->fill_level;
2205 gint fill_width = width;
2206 gint fill_height = height;
2208 gtk_style_context_save (context);
2209 gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
2211 fill_level = CLAMP (fill_level, gtk_adjustment_get_lower (priv->adjustment),
2212 gtk_adjustment_get_upper (priv->adjustment) -
2213 gtk_adjustment_get_page_size (priv->adjustment));
2215 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
2217 fill_x = priv->trough.x;
2218 fill_width = (priv->slider.width +
2219 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2220 (gtk_adjustment_get_upper (priv->adjustment) -
2221 gtk_adjustment_get_lower (priv->adjustment) -
2222 gtk_adjustment_get_page_size (priv->adjustment)) *
2223 (priv->trough.width -
2224 priv->slider.width));
2226 if (should_invert (range))
2227 fill_x += priv->trough.width - fill_width;
2231 fill_y = priv->trough.y;
2232 fill_height = (priv->slider.height +
2233 (fill_level - gtk_adjustment_get_lower (priv->adjustment)) /
2234 (gtk_adjustment_get_upper (priv->adjustment) -
2235 gtk_adjustment_get_lower (priv->adjustment) -
2236 gtk_adjustment_get_page_size (priv->adjustment)) *
2237 (priv->trough.height -
2238 priv->slider.height));
2240 if (should_invert (range))
2241 fill_y += priv->trough.height - fill_height;
2245 if (fill_level < gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment))
2246 fill_detail = "trough-fill-level-full";
2248 fill_detail = "trough-fill-level";
2251 gtk_render_activity (context, cr,
2253 fill_width, fill_height);
2255 gtk_style_context_restore (context);
2258 if (!(widget_state & GTK_STATE_FLAG_INSENSITIVE) && gtk_widget_has_visible_focus (widget))
2260 gtk_render_focus (context, cr,
2263 priv->range_rect.width,
2264 priv->range_rect.height);
2272 GtkStateFlags state = widget_state;
2274 state &= ~(GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_ACTIVE);
2276 if (priv->mouse_location == MOUSE_SLIDER && !(state & GTK_STATE_FLAG_INSENSITIVE))
2277 state |= GTK_STATE_FLAG_PRELIGHT;
2279 if (priv->grab_location == MOUSE_SLIDER)
2280 state |= GTK_STATE_FLAG_ACTIVE;
2283 gdk_cairo_rectangle (cr, &priv->slider);
2286 gtk_style_context_save (context);
2287 gtk_style_context_add_class (context, GTK_STYLE_CLASS_SLIDER);
2288 gtk_style_context_set_state (context, state);
2290 gtk_render_slider (context, cr,
2294 priv->slider.height,
2297 gtk_style_context_restore (context);
2302 if (priv->has_stepper_a)
2303 draw_stepper (range, STEPPER_A, cr,
2304 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2305 priv->grab_location == MOUSE_STEPPER_A,
2306 priv->mouse_location == MOUSE_STEPPER_A,
2309 if (priv->has_stepper_b)
2310 draw_stepper (range, STEPPER_B, cr,
2311 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2312 priv->grab_location == MOUSE_STEPPER_B,
2313 priv->mouse_location == MOUSE_STEPPER_B,
2316 if (priv->has_stepper_c)
2317 draw_stepper (range, STEPPER_C, cr,
2318 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
2319 priv->grab_location == MOUSE_STEPPER_C,
2320 priv->mouse_location == MOUSE_STEPPER_C,
2323 if (priv->has_stepper_d)
2324 draw_stepper (range, STEPPER_D, cr,
2325 priv->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
2326 priv->grab_location == MOUSE_STEPPER_D,
2327 priv->mouse_location == MOUSE_STEPPER_D,
2334 range_grab_add (GtkRange *range,
2336 MouseLocation location,
2339 GtkRangePrivate *priv = range->priv;
2341 if (device == priv->grab_device)
2344 /* Don't perform any GDK/GTK+ grab here. Since a button
2345 * is down, there's an ongoing implicit grab on
2346 * priv->event_window, which pretty much guarantees this
2347 * is the only widget receiving the pointer events.
2349 priv->grab_location = location;
2350 priv->grab_button = button;
2351 priv->grab_device = device;
2353 if (gtk_range_update_mouse_location (range))
2354 gtk_widget_queue_draw (GTK_WIDGET (range));
2358 range_grab_remove (GtkRange *range)
2360 GtkRangePrivate *priv = range->priv;
2361 MouseLocation location;
2363 if (priv->grab_device)
2365 gtk_device_grab_remove (GTK_WIDGET (range),
2367 priv->grab_device = NULL;
2370 location = priv->grab_location;
2371 priv->grab_location = MOUSE_OUTSIDE;
2372 priv->grab_button = 0;
2374 if (gtk_range_update_mouse_location (range) ||
2375 location != MOUSE_OUTSIDE)
2376 gtk_widget_queue_draw (GTK_WIDGET (range));
2379 static GtkScrollType
2380 range_get_scroll_for_grab (GtkRange *range)
2382 GtkRangePrivate *priv = range->priv;
2385 invert = should_invert (range);
2386 switch (priv->grab_location)
2388 /* Backward stepper */
2389 case MOUSE_STEPPER_A:
2390 case MOUSE_STEPPER_C:
2391 switch (priv->grab_button)
2393 case GDK_BUTTON_PRIMARY:
2394 return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
2396 case GDK_BUTTON_MIDDLE:
2397 return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
2399 case GDK_BUTTON_SECONDARY:
2400 return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
2405 /* Forward stepper */
2406 case MOUSE_STEPPER_B:
2407 case MOUSE_STEPPER_D:
2408 switch (priv->grab_button)
2410 case GDK_BUTTON_PRIMARY:
2411 return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
2413 case GDK_BUTTON_MIDDLE:
2414 return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
2416 case GDK_BUTTON_SECONDARY:
2417 return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
2425 if (priv->trough_click_forward)
2426 return GTK_SCROLL_PAGE_FORWARD;
2428 return GTK_SCROLL_PAGE_BACKWARD;
2438 return GTK_SCROLL_NONE;
2442 coord_to_value (GtkRange *range,
2445 GtkRangePrivate *priv = range->priv;
2452 gint trough_under_steppers;
2454 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2456 trough_length = priv->trough.height;
2457 trough_start = priv->trough.y;
2458 slider_length = priv->slider.height;
2462 trough_length = priv->trough.width;
2463 trough_start = priv->trough.x;
2464 slider_length = priv->slider.width;
2467 gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
2468 &trough_under_steppers, NULL, NULL);
2470 if (! trough_under_steppers)
2472 trough_start += trough_border;
2473 trough_length -= 2 * trough_border;
2476 if (trough_length == slider_length)
2479 frac = (MAX (0, coord - trough_start) /
2480 (gdouble) (trough_length - slider_length));
2482 if (should_invert (range))
2485 value = gtk_adjustment_get_lower (priv->adjustment) + frac * (gtk_adjustment_get_upper (priv->adjustment) -
2486 gtk_adjustment_get_lower (priv->adjustment) -
2487 gtk_adjustment_get_page_size (priv->adjustment));
2493 gtk_range_key_press (GtkWidget *widget,
2497 GtkRange *range = GTK_RANGE (widget);
2498 GtkRangePrivate *priv = range->priv;
2500 device = gdk_event_get_device ((GdkEvent *) event);
2501 device = gdk_device_get_associated_device (device);
2503 if (device == priv->grab_device &&
2504 event->keyval == GDK_KEY_Escape &&
2505 priv->grab_location != MOUSE_OUTSIDE)
2507 stop_scrolling (range);
2509 update_slider_position (range,
2510 priv->slide_initial_coordinate,
2511 priv->slide_initial_coordinate);
2516 return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
2520 gtk_range_button_press (GtkWidget *widget,
2521 GdkEventButton *event)
2523 GtkRange *range = GTK_RANGE (widget);
2524 GtkRangePrivate *priv = range->priv;
2527 if (!gtk_widget_has_focus (widget))
2528 gtk_widget_grab_focus (widget);
2530 /* ignore presses when we're already doing something else. */
2531 if (priv->grab_location != MOUSE_OUTSIDE)
2534 device = gdk_event_get_device ((GdkEvent *) event);
2535 priv->mouse_x = event->x;
2536 priv->mouse_y = event->y;
2538 if (gtk_range_update_mouse_location (range))
2539 gtk_widget_queue_draw (widget);
2541 if (priv->mouse_location == MOUSE_SLIDER &&
2542 gdk_event_triggers_context_menu ((GdkEvent *)event))
2546 g_signal_emit_by_name (widget, "popup-menu", &handled);
2551 if (priv->mouse_location == MOUSE_TROUGH &&
2552 event->button == GDK_BUTTON_PRIMARY)
2554 /* button 1 steps by page increment, as with button 2 on a stepper
2556 GtkScrollType scroll;
2557 gdouble click_value;
2559 click_value = coord_to_value (range,
2560 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2561 event->y : event->x);
2563 priv->trough_click_forward = click_value > gtk_adjustment_get_value (priv->adjustment);
2564 range_grab_add (range, device, MOUSE_TROUGH, event->button);
2566 scroll = range_get_scroll_for_grab (range);
2568 gtk_range_add_step_timer (range, scroll);
2572 else if ((priv->mouse_location == MOUSE_STEPPER_A ||
2573 priv->mouse_location == MOUSE_STEPPER_B ||
2574 priv->mouse_location == MOUSE_STEPPER_C ||
2575 priv->mouse_location == MOUSE_STEPPER_D) &&
2576 (event->button == GDK_BUTTON_PRIMARY ||
2577 event->button == GDK_BUTTON_MIDDLE ||
2578 event->button == GDK_BUTTON_SECONDARY))
2580 GtkAllocation allocation;
2581 GdkRectangle *stepper_area;
2582 GtkScrollType scroll;
2584 range_grab_add (range, device, priv->mouse_location, event->button);
2586 gtk_widget_get_allocation (widget, &allocation);
2587 stepper_area = get_area (range, priv->mouse_location);
2589 gtk_widget_queue_draw_area (widget,
2590 allocation.x + stepper_area->x,
2591 allocation.y + stepper_area->y,
2592 stepper_area->width,
2593 stepper_area->height);
2595 scroll = range_get_scroll_for_grab (range);
2596 if (scroll != GTK_SCROLL_NONE)
2597 gtk_range_add_step_timer (range, scroll);
2601 else if ((priv->mouse_location == MOUSE_TROUGH &&
2602 event->button == GDK_BUTTON_MIDDLE) ||
2603 priv->mouse_location == MOUSE_SLIDER)
2605 gboolean need_value_update = FALSE;
2607 /* Any button can be used to drag the slider, but you can start
2608 * dragging the slider with a trough click using button 2;
2609 * On button 2 press, we warp the slider to mouse position,
2610 * then begin the slider drag.
2612 if (event->button == GDK_BUTTON_MIDDLE)
2614 gdouble slider_low_value, slider_high_value, new_value;
2617 coord_to_value (range,
2618 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2619 event->y : event->x);
2621 coord_to_value (range,
2622 priv->orientation == GTK_ORIENTATION_VERTICAL ?
2623 event->y - priv->slider.height :
2624 event->x - priv->slider.width);
2626 /* compute new value for warped slider */
2627 new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
2629 /* recalc slider, so we can set slide_initial_slider_position
2632 priv->need_recalc = TRUE;
2633 gtk_range_calc_layout (range, new_value);
2635 /* defer adjustment updates to update_slider_position() in order
2636 * to keep pixel quantisation
2638 need_value_update = TRUE;
2641 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2643 priv->slide_initial_slider_position = priv->slider.y;
2644 priv->slide_initial_coordinate = event->y;
2648 priv->slide_initial_slider_position = priv->slider.x;
2649 priv->slide_initial_coordinate = event->x;
2652 range_grab_add (range, device, MOUSE_SLIDER, event->button);
2654 gtk_widget_queue_draw (widget);
2656 if (need_value_update)
2657 update_slider_position (range, event->x, event->y);
2665 /* During a slide, move the slider as required given new mouse position */
2667 update_slider_position (GtkRange *range,
2671 GtkRangePrivate *priv = range->priv;
2681 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
2682 delta = mouse_y - priv->slide_initial_coordinate;
2684 delta = mouse_x - priv->slide_initial_coordinate;
2686 c = priv->slide_initial_slider_position + delta;
2688 new_value = coord_to_value (range, c);
2689 next_value = coord_to_value (range, c + 1);
2690 mark_delta = fabs (next_value - new_value);
2692 for (i = 0; i < priv->n_marks; i++)
2694 mark_value = priv->marks[i];
2696 if (fabs (gtk_adjustment_get_value (priv->adjustment) - mark_value) < 3 * mark_delta)
2698 if (fabs (new_value - mark_value) < (priv->slider_end - priv->slider_start) * 0.5 * mark_delta)
2700 new_value = mark_value;
2706 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
2711 stop_scrolling (GtkRange *range)
2713 range_grab_remove (range);
2714 gtk_range_remove_step_timer (range);
2718 gtk_range_grab_broken (GtkWidget *widget,
2719 GdkEventGrabBroken *event)
2721 GtkRange *range = GTK_RANGE (widget);
2722 GtkRangePrivate *priv = range->priv;
2725 device = gdk_event_get_device ((GdkEvent *) event);
2727 if (device == priv->grab_device &&
2728 priv->grab_location != MOUSE_OUTSIDE)
2730 if (priv->grab_location == MOUSE_SLIDER)
2731 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2733 stop_scrolling (range);
2742 gtk_range_button_release (GtkWidget *widget,
2743 GdkEventButton *event)
2745 GtkRange *range = GTK_RANGE (widget);
2746 GtkRangePrivate *priv = range->priv;
2749 if (event->window == priv->event_window)
2751 priv->mouse_x = event->x;
2752 priv->mouse_y = event->y;
2756 gdk_window_get_device_position (priv->event_window,
2763 device = gdk_event_get_device ((GdkEvent *) event);
2765 if (priv->grab_device == device &&
2766 priv->grab_button == event->button)
2768 if (priv->grab_location == MOUSE_SLIDER)
2769 update_slider_position (range, priv->mouse_x, priv->mouse_y);
2771 stop_scrolling (range);
2780 * _gtk_range_get_wheel_delta:
2781 * @range: a #GtkRange
2782 * @direction: A #GdkScrollDirection
2784 * Returns a good step value for the mouse wheel.
2786 * Return value: A good step value for the mouse wheel.
2791 _gtk_range_get_wheel_delta (GtkRange *range,
2792 GdkScrollDirection direction)
2794 GtkRangePrivate *priv = range->priv;
2795 GtkAdjustment *adjustment = priv->adjustment;
2798 if (GTK_IS_SCROLLBAR (range))
2799 delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
2801 delta = gtk_adjustment_get_step_increment (adjustment) * 2;
2803 if (direction == GDK_SCROLL_UP ||
2804 direction == GDK_SCROLL_LEFT)
2814 gtk_range_scroll_event (GtkWidget *widget,
2815 GdkEventScroll *event)
2817 GtkRange *range = GTK_RANGE (widget);
2818 GtkRangePrivate *priv = range->priv;
2820 if (gtk_widget_get_realized (widget))
2825 delta = _gtk_range_get_wheel_delta (range, event->direction);
2827 g_signal_emit (range, signals[CHANGE_VALUE], 0,
2828 GTK_SCROLL_JUMP, gtk_adjustment_get_value (priv->adjustment) + delta,
2836 gtk_range_motion_notify (GtkWidget *widget,
2837 GdkEventMotion *event)
2839 GtkRange *range = GTK_RANGE (widget);
2840 GtkRangePrivate *priv = range->priv;
2842 gdk_event_request_motions (event);
2844 priv->mouse_x = event->x;
2845 priv->mouse_y = event->y;
2847 if (gtk_range_update_mouse_location (range))
2848 gtk_widget_queue_draw (widget);
2850 if (priv->grab_location == MOUSE_SLIDER)
2851 update_slider_position (range, event->x, event->y);
2853 /* We handled the event if the mouse was in the range_rect */
2854 return priv->mouse_location != MOUSE_OUTSIDE;
2858 gtk_range_enter_notify (GtkWidget *widget,
2859 GdkEventCrossing *event)
2861 GtkRange *range = GTK_RANGE (widget);
2862 GtkRangePrivate *priv = range->priv;
2864 priv->mouse_x = event->x;
2865 priv->mouse_y = event->y;
2867 if (gtk_range_update_mouse_location (range))
2868 gtk_widget_queue_draw (widget);
2874 gtk_range_leave_notify (GtkWidget *widget,
2875 GdkEventCrossing *event)
2877 GtkRange *range = GTK_RANGE (widget);
2878 GtkRangePrivate *priv = range->priv;
2883 if (gtk_range_update_mouse_location (range))
2884 gtk_widget_queue_draw (widget);
2890 gtk_range_grab_notify (GtkWidget *widget,
2891 gboolean was_grabbed)
2893 GtkRangePrivate *priv = GTK_RANGE (widget)->priv;
2895 if (priv->grab_device &&
2896 gtk_widget_device_is_shadowed (widget, priv->grab_device))
2897 stop_scrolling (GTK_RANGE (widget));
2901 gtk_range_state_flags_changed (GtkWidget *widget,
2902 GtkStateFlags previous_state)
2904 if (!gtk_widget_is_sensitive (widget))
2905 stop_scrolling (GTK_RANGE (widget));
2908 #define check_rectangle(rectangle1, rectangle2) \
2910 if (rectangle1.x != rectangle2.x) return TRUE; \
2911 if (rectangle1.y != rectangle2.y) return TRUE; \
2912 if (rectangle1.width != rectangle2.width) return TRUE; \
2913 if (rectangle1.height != rectangle2.height) return TRUE; \
2917 layout_changed (GtkRangePrivate *priv1,
2918 GtkRangePrivate *priv2)
2920 check_rectangle (priv1->slider, priv2->slider);
2921 check_rectangle (priv1->trough, priv2->trough);
2922 check_rectangle (priv1->stepper_a, priv2->stepper_a);
2923 check_rectangle (priv1->stepper_d, priv2->stepper_d);
2924 check_rectangle (priv1->stepper_b, priv2->stepper_b);
2925 check_rectangle (priv1->stepper_c, priv2->stepper_c);
2927 if (priv1->upper_sensitive != priv2->upper_sensitive) return TRUE;
2928 if (priv1->lower_sensitive != priv2->lower_sensitive) return TRUE;
2934 gtk_range_adjustment_changed (GtkAdjustment *adjustment,
2937 GtkRange *range = GTK_RANGE (data);
2938 GtkRangePrivate *priv = range->priv;
2939 GtkRangePrivate priv_aux = *priv;
2941 priv->recalc_marks = TRUE;
2942 priv->need_recalc = TRUE;
2943 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2945 /* now check whether the layout changed */
2946 if (layout_changed (priv, &priv_aux))
2947 gtk_widget_queue_draw (GTK_WIDGET (range));
2949 /* Note that we don't round off to priv->round_digits here.
2950 * that's because it's really broken to change a value
2951 * in response to a change signal on that value; round_digits
2952 * is therefore defined to be a filter on what the GtkRange
2953 * can input into the adjustment, not a filter that the GtkRange
2954 * will enforce on the adjustment.
2959 force_repaint (gpointer data)
2961 GtkRange *range = GTK_RANGE (data);
2962 GtkRangePrivate *priv = range->priv;
2963 GtkWidget *widget = GTK_WIDGET (range);
2965 priv->repaint_id = 0;
2966 if (gtk_widget_is_drawable (widget))
2967 gdk_window_process_updates (gtk_widget_get_window (widget), FALSE);
2973 gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
2976 GtkRange *range = GTK_RANGE (data);
2977 GtkRangePrivate *priv = range->priv;
2978 GtkRangePrivate priv_aux = *priv;
2980 priv->need_recalc = TRUE;
2981 gtk_range_calc_layout (range, gtk_adjustment_get_value (priv->adjustment));
2983 /* now check whether the layout changed */
2984 if (layout_changed (priv, &priv_aux) ||
2985 (GTK_IS_SCALE (range) && gtk_scale_get_draw_value (GTK_SCALE (range))))
2987 gtk_widget_queue_draw (GTK_WIDGET (range));
2988 /* setup a timer to ensure the range isn't lagging too much behind the scroll position */
2989 if (!priv->repaint_id)
2990 priv->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS,
2995 /* Note that we don't round off to priv->round_digits here.
2996 * that's because it's really broken to change a value
2997 * in response to a change signal on that value; round_digits
2998 * is therefore defined to be a filter on what the GtkRange
2999 * can input into the adjustment, not a filter that the GtkRange
3000 * will enforce on the adjustment.
3003 g_signal_emit (range, signals[VALUE_CHANGED], 0);
3007 gtk_range_style_updated (GtkWidget *widget)
3009 GtkRange *range = GTK_RANGE (widget);
3010 GtkRangePrivate *priv = range->priv;
3012 priv->need_recalc = TRUE;
3014 GTK_WIDGET_CLASS (gtk_range_parent_class)->style_updated (widget);
3018 apply_marks (GtkRange *range,
3022 GtkRangePrivate *priv = range->priv;
3026 for (i = 0; i < priv->n_marks; i++)
3028 mark = priv->marks[i];
3029 if ((oldval < mark && mark < *newval) ||
3030 (oldval > mark && mark > *newval))
3039 step_back (GtkRange *range)
3041 GtkRangePrivate *priv = range->priv;
3045 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_step_increment (priv->adjustment);
3046 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3047 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3048 GTK_SCROLL_STEP_BACKWARD, newval, &handled);
3052 step_forward (GtkRange *range)
3054 GtkRangePrivate *priv = range->priv;
3058 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_step_increment (priv->adjustment);
3059 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3060 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3061 GTK_SCROLL_STEP_FORWARD, newval, &handled);
3066 page_back (GtkRange *range)
3068 GtkRangePrivate *priv = range->priv;
3072 newval = gtk_adjustment_get_value (priv->adjustment) - gtk_adjustment_get_page_increment (priv->adjustment);
3073 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3074 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3075 GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
3079 page_forward (GtkRange *range)
3081 GtkRangePrivate *priv = range->priv;
3085 newval = gtk_adjustment_get_value (priv->adjustment) + gtk_adjustment_get_page_increment (priv->adjustment);
3086 apply_marks (range, gtk_adjustment_get_value (priv->adjustment), &newval);
3087 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3088 GTK_SCROLL_PAGE_FORWARD, newval, &handled);
3092 scroll_begin (GtkRange *range)
3094 GtkRangePrivate *priv = range->priv;
3097 g_signal_emit (range, signals[CHANGE_VALUE], 0,
3098 GTK_SCROLL_START, gtk_adjustment_get_lower (priv->adjustment),
3103 scroll_end (GtkRange *range)
3105 GtkRangePrivate *priv = range->priv;
3109 newval = gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment);
3110 g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
3115 gtk_range_scroll (GtkRange *range,
3116 GtkScrollType scroll)
3118 GtkRangePrivate *priv = range->priv;
3119 gdouble old_value = gtk_adjustment_get_value (priv->adjustment);
3123 case GTK_SCROLL_STEP_LEFT:
3124 if (should_invert (range))
3125 step_forward (range);
3130 case GTK_SCROLL_STEP_UP:
3131 if (should_invert (range))
3132 step_forward (range);
3137 case GTK_SCROLL_STEP_RIGHT:
3138 if (should_invert (range))
3141 step_forward (range);
3144 case GTK_SCROLL_STEP_DOWN:
3145 if (should_invert (range))
3148 step_forward (range);
3151 case GTK_SCROLL_STEP_BACKWARD:
3155 case GTK_SCROLL_STEP_FORWARD:
3156 step_forward (range);
3159 case GTK_SCROLL_PAGE_LEFT:
3160 if (should_invert (range))
3161 page_forward (range);
3166 case GTK_SCROLL_PAGE_UP:
3167 if (should_invert (range))
3168 page_forward (range);
3173 case GTK_SCROLL_PAGE_RIGHT:
3174 if (should_invert (range))
3177 page_forward (range);
3180 case GTK_SCROLL_PAGE_DOWN:
3181 if (should_invert (range))
3184 page_forward (range);
3187 case GTK_SCROLL_PAGE_BACKWARD:
3191 case GTK_SCROLL_PAGE_FORWARD:
3192 page_forward (range);
3195 case GTK_SCROLL_START:
3196 scroll_begin (range);
3199 case GTK_SCROLL_END:
3203 case GTK_SCROLL_JUMP:
3204 /* Used by CList, range doesn't use it. */
3207 case GTK_SCROLL_NONE:
3211 return gtk_adjustment_get_value (priv->adjustment) != old_value;
3215 gtk_range_move_slider (GtkRange *range,
3216 GtkScrollType scroll)
3218 GtkRangePrivate *priv = range->priv;
3219 gboolean cursor_only;
3221 g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
3222 "gtk-keynav-cursor-only", &cursor_only,
3227 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
3229 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3231 if (scroll == GTK_SCROLL_STEP_UP ||
3232 scroll == GTK_SCROLL_STEP_DOWN)
3235 gtk_widget_child_focus (toplevel,
3236 scroll == GTK_SCROLL_STEP_UP ?
3237 GTK_DIR_UP : GTK_DIR_DOWN);
3243 if (scroll == GTK_SCROLL_STEP_LEFT ||
3244 scroll == GTK_SCROLL_STEP_RIGHT)
3247 gtk_widget_child_focus (toplevel,
3248 scroll == GTK_SCROLL_STEP_LEFT ?
3249 GTK_DIR_LEFT : GTK_DIR_RIGHT);
3255 if (! gtk_range_scroll (range, scroll))
3256 gtk_widget_error_bell (GTK_WIDGET (range));
3260 gtk_range_get_props (GtkRange *range,
3264 gint *trough_border,
3265 gint *stepper_spacing,
3266 gboolean *trough_under_steppers,
3267 gint *arrow_displacement_x,
3268 gint *arrow_displacement_y)
3270 GtkWidget *widget = GTK_WIDGET (range);
3271 gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
3272 gint tmp_stepper_spacing, tmp_trough_under_steppers;
3273 gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
3275 gtk_widget_style_get (widget,
3276 "slider-width", &tmp_slider_width,
3277 "trough-border", &tmp_trough_border,
3278 "stepper-size", &tmp_stepper_size,
3279 "stepper-spacing", &tmp_stepper_spacing,
3280 "trough-under-steppers", &tmp_trough_under_steppers,
3281 "arrow-displacement-x", &tmp_arrow_displacement_x,
3282 "arrow-displacement-y", &tmp_arrow_displacement_y,
3285 if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
3287 gint focus_line_width;
3290 gtk_widget_style_get (GTK_WIDGET (range),
3291 "focus-line-width", &focus_line_width,
3292 "focus-padding", &focus_padding,
3295 tmp_focus_width = focus_line_width + focus_padding;
3299 tmp_focus_width = 0;
3303 *slider_width = tmp_slider_width;
3306 *focus_width = tmp_focus_width;
3309 *trough_border = tmp_trough_border;
3312 *stepper_size = tmp_stepper_size;
3314 if (stepper_spacing)
3315 *stepper_spacing = tmp_stepper_spacing;
3317 if (trough_under_steppers)
3318 *trough_under_steppers = tmp_trough_under_steppers;
3320 if (arrow_displacement_x)
3321 *arrow_displacement_x = tmp_arrow_displacement_x;
3323 if (arrow_displacement_y)
3324 *arrow_displacement_y = tmp_arrow_displacement_y;
3327 #define POINT_IN_RECT(xcoord, ycoord, rect) \
3328 ((xcoord) >= (rect).x && \
3329 (xcoord) < ((rect).x + (rect).width) && \
3330 (ycoord) >= (rect).y && \
3331 (ycoord) < ((rect).y + (rect).height))
3333 /* Update mouse location, return TRUE if it changes */
3335 gtk_range_update_mouse_location (GtkRange *range)
3337 GtkRangePrivate *priv = range->priv;
3338 GtkAllocation allocation;
3341 GtkWidget *widget = GTK_WIDGET (range);
3343 old = priv->mouse_location;
3348 gtk_widget_get_allocation (widget, &allocation);
3350 if (priv->grab_location != MOUSE_OUTSIDE)
3351 priv->mouse_location = priv->grab_location;
3352 else if (POINT_IN_RECT (x, y, priv->stepper_a))
3353 priv->mouse_location = MOUSE_STEPPER_A;
3354 else if (POINT_IN_RECT (x, y, priv->stepper_b))
3355 priv->mouse_location = MOUSE_STEPPER_B;
3356 else if (POINT_IN_RECT (x, y, priv->stepper_c))
3357 priv->mouse_location = MOUSE_STEPPER_C;
3358 else if (POINT_IN_RECT (x, y, priv->stepper_d))
3359 priv->mouse_location = MOUSE_STEPPER_D;
3360 else if (POINT_IN_RECT (x, y, priv->slider))
3361 priv->mouse_location = MOUSE_SLIDER;
3362 else if (POINT_IN_RECT (x, y, priv->trough))
3363 priv->mouse_location = MOUSE_TROUGH;
3364 else if (POINT_IN_RECT (x, y, allocation))
3365 priv->mouse_location = MOUSE_WIDGET;
3367 priv->mouse_location = MOUSE_OUTSIDE;
3369 return old != priv->mouse_location;
3372 /* Clamp rect, border inside widget->allocation, such that we prefer
3373 * to take space from border not rect in all directions, and prefer to
3374 * give space to border over rect in one direction.
3377 clamp_dimensions (GtkWidget *widget,
3380 gboolean border_expands_horizontally)
3382 GtkAllocation allocation;
3383 gint extra, shortage;
3385 g_return_if_fail (rect->x == 0);
3386 g_return_if_fail (rect->y == 0);
3387 g_return_if_fail (rect->width >= 0);
3388 g_return_if_fail (rect->height >= 0);
3390 gtk_widget_get_allocation (widget, &allocation);
3394 extra = allocation.width - border->left - border->right - rect->width;
3397 if (border_expands_horizontally)
3399 border->left += extra / 2;
3400 border->right += extra / 2 + extra % 2;
3404 rect->width += extra;
3408 /* See if we can fit rect, if not kill the border */
3409 shortage = rect->width - allocation.width;
3412 rect->width = allocation.width;
3413 /* lose the border */
3419 /* See if we can fit rect with borders */
3420 shortage = rect->width + border->left + border->right - allocation.width;
3423 /* Shrink borders */
3424 border->left -= shortage / 2;
3425 border->right -= shortage / 2 + shortage % 2;
3431 extra = allocation.height - border->top - border->bottom - rect->height;
3434 if (border_expands_horizontally)
3436 /* don't expand border vertically */
3437 rect->height += extra;
3441 border->top += extra / 2;
3442 border->bottom += extra / 2 + extra % 2;
3446 /* See if we can fit rect, if not kill the border */
3447 shortage = rect->height - allocation.height;
3450 rect->height = allocation.height;
3451 /* lose the border */
3457 /* See if we can fit rect with borders */
3458 shortage = rect->height + border->top + border->bottom - allocation.height;
3461 /* Shrink borders */
3462 border->top -= shortage / 2;
3463 border->bottom -= shortage / 2 + shortage % 2;
3469 gtk_range_calc_request (GtkRange *range,
3474 gint stepper_spacing,
3475 GdkRectangle *range_rect,
3478 gboolean *has_steppers_ab,
3479 gboolean *has_steppers_cd,
3480 gint *slider_length_p)
3482 GtkRangePrivate *priv = range->priv;
3493 if (GTK_RANGE_GET_CLASS (range)->get_range_border)
3494 GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
3499 if (priv->has_stepper_a)
3501 if (priv->has_stepper_b)
3503 if (priv->has_stepper_c)
3505 if (priv->has_stepper_d)
3508 n_steppers = n_steppers_ab + n_steppers_cd;
3510 slider_length = priv->min_slider_size;
3515 /* We never expand to fill available space in the small dimension
3516 * (i.e. vertical scrollbars are always a fixed width)
3518 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3520 range_rect->width = (focus_width + trough_border) * 2 + slider_width;
3521 range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3523 if (n_steppers_ab > 0)
3524 range_rect->height += stepper_spacing;
3526 if (n_steppers_cd > 0)
3527 range_rect->height += stepper_spacing;
3531 range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
3532 range_rect->height = (focus_width + trough_border) * 2 + slider_width;
3534 if (n_steppers_ab > 0)
3535 range_rect->width += stepper_spacing;
3537 if (n_steppers_cd > 0)
3538 range_rect->width += stepper_spacing;
3542 *n_steppers_p = n_steppers;
3544 if (has_steppers_ab)
3545 *has_steppers_ab = (n_steppers_ab > 0);
3547 if (has_steppers_cd)
3548 *has_steppers_cd = (n_steppers_cd > 0);
3550 if (slider_length_p)
3551 *slider_length_p = slider_length;
3555 gtk_range_calc_layout (GtkRange *range,
3556 gdouble adjustment_value)
3558 GtkRangePrivate *priv = range->priv;
3559 gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
3563 gboolean has_steppers_ab;
3564 gboolean has_steppers_cd;
3565 gboolean trough_under_steppers;
3566 GdkRectangle range_rect;
3569 if (!priv->need_recalc)
3572 /* If we have a too-small allocation, we prefer the steppers over
3573 * the trough/slider, probably the steppers are a more useful
3574 * feature in small spaces.
3576 * Also, we prefer to draw the range itself rather than the border
3577 * areas if there's a conflict, since the borders will be decoration
3578 * not controls. Though this depends on subclasses cooperating by
3579 * not drawing on priv->range_rect.
3582 widget = GTK_WIDGET (range);
3584 gtk_range_get_props (range,
3585 &slider_width, &stepper_size,
3586 &focus_width, &trough_border,
3587 &stepper_spacing, &trough_under_steppers,
3590 gtk_range_calc_request (range,
3591 slider_width, stepper_size,
3592 focus_width, trough_border, stepper_spacing,
3593 &range_rect, &border, &n_steppers,
3594 &has_steppers_ab, &has_steppers_cd, &slider_length);
3596 /* We never expand to fill available space in the small dimension
3597 * (i.e. vertical scrollbars are always a fixed width)
3599 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3601 clamp_dimensions (widget, &range_rect, &border, TRUE);
3605 clamp_dimensions (widget, &range_rect, &border, FALSE);
3608 range_rect.x = border.left;
3609 range_rect.y = border.top;
3611 priv->range_rect = range_rect;
3613 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
3615 gint stepper_width, stepper_height;
3617 /* Steppers are the width of the range, and stepper_size in
3618 * height, or if we don't have enough height, divided equally
3619 * among available space.
3621 stepper_width = range_rect.width - focus_width * 2;
3623 if (trough_under_steppers)
3624 stepper_width -= trough_border * 2;
3626 if (stepper_width < 1)
3627 stepper_width = range_rect.width; /* screw the trough border */
3629 if (n_steppers == 0)
3630 stepper_height = 0; /* avoid divide by n_steppers */
3632 stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
3636 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3637 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3639 if (priv->has_stepper_a)
3641 priv->stepper_a.width = stepper_width;
3642 priv->stepper_a.height = stepper_height;
3646 priv->stepper_a.width = 0;
3647 priv->stepper_a.height = 0;
3652 priv->stepper_b.x = priv->stepper_a.x;
3653 priv->stepper_b.y = priv->stepper_a.y + priv->stepper_a.height;
3655 if (priv->has_stepper_b)
3657 priv->stepper_b.width = stepper_width;
3658 priv->stepper_b.height = stepper_height;
3662 priv->stepper_b.width = 0;
3663 priv->stepper_b.height = 0;
3668 if (priv->has_stepper_d)
3670 priv->stepper_d.width = stepper_width;
3671 priv->stepper_d.height = stepper_height;
3675 priv->stepper_d.width = 0;
3676 priv->stepper_d.height = 0;
3679 priv->stepper_d.x = priv->stepper_a.x;
3680 priv->stepper_d.y = range_rect.y + range_rect.height - priv->stepper_d.height - focus_width - trough_border * trough_under_steppers;
3684 if (priv->has_stepper_c)
3686 priv->stepper_c.width = stepper_width;
3687 priv->stepper_c.height = stepper_height;
3691 priv->stepper_c.width = 0;
3692 priv->stepper_c.height = 0;
3695 priv->stepper_c.x = priv->stepper_a.x;
3696 priv->stepper_c.y = priv->stepper_d.y - priv->stepper_c.height;
3698 /* Now the trough is the remaining space between steppers B and C,
3699 * if any, minus spacing
3701 priv->trough.x = range_rect.x;
3702 priv->trough.y = priv->stepper_b.y + priv->stepper_b.height + stepper_spacing * has_steppers_ab;
3703 priv->trough.width = range_rect.width;
3704 priv->trough.height = priv->stepper_c.y - priv->trough.y - stepper_spacing * has_steppers_cd;
3706 /* Slider fits into the trough, with stepper_spacing on either side,
3707 * and the size/position based on the adjustment or fixed, depending.
3709 priv->slider.x = priv->trough.x + focus_width + trough_border;
3710 priv->slider.width = priv->trough.width - (focus_width + trough_border) * 2;
3712 /* Compute slider position/length */
3714 gint y, bottom, top, height;
3716 top = priv->trough.y;
3717 bottom = priv->trough.y + priv->trough.height;
3719 if (! trough_under_steppers)
3721 top += trough_border;
3722 bottom -= trough_border;
3725 /* slider height is the fraction (page_size /
3726 * total_adjustment_range) times the trough height in pixels
3729 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3730 height = ((bottom - top) * (gtk_adjustment_get_page_size (priv->adjustment) /
3731 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3733 height = priv->min_slider_size;
3735 if (height < priv->min_slider_size ||
3736 priv->slider_size_fixed)
3737 height = priv->min_slider_size;
3739 height = MIN (height, priv->trough.height);
3743 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3744 y += (bottom - top - height) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3745 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3747 y = CLAMP (y, top, bottom);
3749 if (should_invert (range))
3750 y = bottom - (y - top + height);
3753 priv->slider.height = height;
3755 /* These are publically exported */
3756 priv->slider_start = priv->slider.y;
3757 priv->slider_end = priv->slider.y + priv->slider.height;
3762 gint stepper_width, stepper_height;
3764 /* Steppers are the height of the range, and stepper_size in
3765 * width, or if we don't have enough width, divided equally
3766 * among available space.
3768 stepper_height = range_rect.height + focus_width * 2;
3770 if (trough_under_steppers)
3771 stepper_height -= trough_border * 2;
3773 if (stepper_height < 1)
3774 stepper_height = range_rect.height; /* screw the trough border */
3776 if (n_steppers == 0)
3777 stepper_width = 0; /* avoid divide by n_steppers */
3779 stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
3783 priv->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
3784 priv->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
3786 if (priv->has_stepper_a)
3788 priv->stepper_a.width = stepper_width;
3789 priv->stepper_a.height = stepper_height;
3793 priv->stepper_a.width = 0;
3794 priv->stepper_a.height = 0;
3799 priv->stepper_b.x = priv->stepper_a.x + priv->stepper_a.width;
3800 priv->stepper_b.y = priv->stepper_a.y;
3802 if (priv->has_stepper_b)
3804 priv->stepper_b.width = stepper_width;
3805 priv->stepper_b.height = stepper_height;
3809 priv->stepper_b.width = 0;
3810 priv->stepper_b.height = 0;
3815 if (priv->has_stepper_d)
3817 priv->stepper_d.width = stepper_width;
3818 priv->stepper_d.height = stepper_height;
3822 priv->stepper_d.width = 0;
3823 priv->stepper_d.height = 0;
3826 priv->stepper_d.x = range_rect.x + range_rect.width - priv->stepper_d.width - focus_width - trough_border * trough_under_steppers;
3827 priv->stepper_d.y = priv->stepper_a.y;
3832 if (priv->has_stepper_c)
3834 priv->stepper_c.width = stepper_width;
3835 priv->stepper_c.height = stepper_height;
3839 priv->stepper_c.width = 0;
3840 priv->stepper_c.height = 0;
3843 priv->stepper_c.x = priv->stepper_d.x - priv->stepper_c.width;
3844 priv->stepper_c.y = priv->stepper_a.y;
3846 /* Now the trough is the remaining space between steppers B and C,
3849 priv->trough.x = priv->stepper_b.x + priv->stepper_b.width + stepper_spacing * has_steppers_ab;
3850 priv->trough.y = range_rect.y;
3852 priv->trough.width = priv->stepper_c.x - priv->trough.x - stepper_spacing * has_steppers_cd;
3853 priv->trough.height = range_rect.height;
3855 /* Slider fits into the trough, with stepper_spacing on either side,
3856 * and the size/position based on the adjustment or fixed, depending.
3858 priv->slider.y = priv->trough.y + focus_width + trough_border;
3859 priv->slider.height = priv->trough.height - (focus_width + trough_border) * 2;
3861 /* Compute slider position/length */
3863 gint x, left, right, width;
3865 left = priv->trough.x;
3866 right = priv->trough.x + priv->trough.width;
3868 if (! trough_under_steppers)
3870 left += trough_border;
3871 right -= trough_border;
3874 /* slider width is the fraction (page_size /
3875 * total_adjustment_range) times the trough width in pixels
3878 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) != 0)
3879 width = ((right - left) * (gtk_adjustment_get_page_size (priv->adjustment) /
3880 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment))));
3882 width = priv->min_slider_size;
3884 if (width < priv->min_slider_size ||
3885 priv->slider_size_fixed)
3886 width = priv->min_slider_size;
3888 width = MIN (width, priv->trough.width);
3892 if (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment) != 0)
3893 x += (right - left - width) * ((adjustment_value - gtk_adjustment_get_lower (priv->adjustment)) /
3894 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_lower (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3896 x = CLAMP (x, left, right);
3898 if (should_invert (range))
3899 x = right - (x - left + width);
3902 priv->slider.width = width;
3904 /* These are publically exported */
3905 priv->slider_start = priv->slider.x;
3906 priv->slider_end = priv->slider.x + priv->slider.width;
3910 gtk_range_update_mouse_location (range);
3912 switch (priv->upper_sensitivity)
3914 case GTK_SENSITIVITY_AUTO:
3915 priv->upper_sensitive =
3916 (gtk_adjustment_get_value (priv->adjustment) <
3917 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
3920 case GTK_SENSITIVITY_ON:
3921 priv->upper_sensitive = TRUE;
3924 case GTK_SENSITIVITY_OFF:
3925 priv->upper_sensitive = FALSE;
3929 switch (priv->lower_sensitivity)
3931 case GTK_SENSITIVITY_AUTO:
3932 priv->lower_sensitive =
3933 (gtk_adjustment_get_value (priv->adjustment) > gtk_adjustment_get_lower (priv->adjustment));
3936 case GTK_SENSITIVITY_ON:
3937 priv->lower_sensitive = TRUE;
3940 case GTK_SENSITIVITY_OFF:
3941 priv->lower_sensitive = FALSE;
3946 static GdkRectangle*
3947 get_area (GtkRange *range,
3948 MouseLocation location)
3950 GtkRangePrivate *priv = range->priv;
3954 case MOUSE_STEPPER_A:
3955 return &priv->stepper_a;
3956 case MOUSE_STEPPER_B:
3957 return &priv->stepper_b;
3958 case MOUSE_STEPPER_C:
3959 return &priv->stepper_c;
3960 case MOUSE_STEPPER_D:
3961 return &priv->stepper_d;
3963 return &priv->trough;
3965 return &priv->slider;
3971 g_warning (G_STRLOC": bug");
3976 gtk_range_calc_marks (GtkRange *range)
3978 GtkRangePrivate *priv = range->priv;
3981 if (!priv->recalc_marks)
3984 priv->recalc_marks = FALSE;
3986 for (i = 0; i < priv->n_marks; i++)
3988 priv->need_recalc = TRUE;
3989 gtk_range_calc_layout (range, priv->marks[i]);
3990 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
3991 priv->mark_pos[i] = priv->slider.x + priv->slider.width / 2;
3993 priv->mark_pos[i] = priv->slider.y + priv->slider.height / 2;
3996 priv->need_recalc = TRUE;
4000 gtk_range_real_change_value (GtkRange *range,
4001 GtkScrollType scroll,
4004 GtkRangePrivate *priv = range->priv;
4006 /* potentially adjust the bounds _before_ we clamp */
4007 g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
4009 if (priv->restrict_to_fill_level)
4010 value = MIN (value, MAX (gtk_adjustment_get_lower (priv->adjustment),
4013 value = CLAMP (value, gtk_adjustment_get_lower (priv->adjustment),
4014 (gtk_adjustment_get_upper (priv->adjustment) - gtk_adjustment_get_page_size (priv->adjustment)));
4016 if (priv->round_digits >= 0)
4021 i = priv->round_digits;
4026 value = floor ((value * power) + 0.5) / power;
4029 if (gtk_adjustment_get_value (priv->adjustment) != value)
4031 priv->need_recalc = TRUE;
4033 gtk_widget_queue_draw (GTK_WIDGET (range));
4035 gtk_adjustment_set_value (priv->adjustment, value);
4040 struct _GtkRangeStepTimer
4047 second_timeout (gpointer data)
4049 GtkRange *range = GTK_RANGE (data);
4050 GtkRangePrivate *priv = range->priv;
4052 gtk_range_scroll (range, priv->timer->step);
4058 initial_timeout (gpointer data)
4060 GtkRange *range = GTK_RANGE (data);
4061 GtkRangePrivate *priv = range->priv;
4062 GtkSettings *settings;
4065 settings = gtk_widget_get_settings (GTK_WIDGET (data));
4066 g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
4068 priv->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
4076 gtk_range_add_step_timer (GtkRange *range,
4079 GtkRangePrivate *priv = range->priv;
4080 GtkSettings *settings;
4083 g_return_if_fail (priv->timer == NULL);
4084 g_return_if_fail (step != GTK_SCROLL_NONE);
4086 settings = gtk_widget_get_settings (GTK_WIDGET (range));
4087 g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
4089 priv->timer = g_new (GtkRangeStepTimer, 1);
4091 priv->timer->timeout_id = gdk_threads_add_timeout (timeout,
4094 priv->timer->step = step;
4096 gtk_range_scroll (range, priv->timer->step);
4100 gtk_range_remove_step_timer (GtkRange *range)
4102 GtkRangePrivate *priv = range->priv;
4106 if (priv->timer->timeout_id != 0)
4107 g_source_remove (priv->timer->timeout_id);
4109 g_free (priv->timer);
4116 _gtk_range_set_has_origin (GtkRange *range,
4117 gboolean has_origin)
4119 range->priv->has_origin = has_origin;
4123 _gtk_range_get_has_origin (GtkRange *range)
4125 return range->priv->has_origin;
4129 _gtk_range_set_stop_values (GtkRange *range,
4133 GtkRangePrivate *priv = range->priv;
4136 g_free (priv->marks);
4137 priv->marks = g_new (gdouble, n_values);
4139 g_free (priv->mark_pos);
4140 priv->mark_pos = g_new (gint, n_values);
4142 priv->n_marks = n_values;
4144 for (i = 0; i < n_values; i++)
4145 priv->marks[i] = values[i];
4147 priv->recalc_marks = TRUE;
4151 _gtk_range_get_stop_positions (GtkRange *range,
4154 GtkRangePrivate *priv = range->priv;
4156 gtk_range_calc_marks (range);
4159 *values = g_memdup (priv->mark_pos, priv->n_marks * sizeof (gint));
4161 return priv->n_marks;
4165 * gtk_range_set_round_digits:
4166 * @range: a #GtkRange
4167 * @round_digits: the precision in digits, or -1
4169 * Sets the number of digits to round the value to when
4170 * it changes. See #GtkRange::change-value.
4175 gtk_range_set_round_digits (GtkRange *range,
4178 g_return_if_fail (GTK_IS_RANGE (range));
4179 g_return_if_fail (round_digits >= -1);
4181 range->priv->round_digits = round_digits;
4183 g_object_notify (G_OBJECT (range), "round-digits");
4187 * gtk_range_get_round_digits:
4188 * @range: a #GtkRange
4190 * Gets the number of digits to round the value to when
4191 * it changes. See #GtkRange::change-value.
4193 * Return value: the number of digits to round to
4198 gtk_range_get_round_digits (GtkRange *range)
4200 g_return_val_if_fail (GTK_IS_RANGE (range), -1);
4202 return range->priv->round_digits;
4206 _gtk_range_set_steppers (GtkRange *range,
4212 range->priv->has_stepper_a = has_a;
4213 range->priv->has_stepper_b = has_b;
4214 range->priv->has_stepper_c = has_c;
4215 range->priv->has_stepper_d = has_d;