1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::Accessible;
#[cfg(any(feature = "v4_10", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v4_10")))]
use crate::AccessibleRange;
use crate::Adjustment;
use crate::Buildable;
use crate::ConstraintTarget;
use crate::Orientable;
use crate::ScrollType;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
use glib::object::ObjectExt;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem;
use std::mem::transmute;

#[cfg(any(feature = "v4_10", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v4_10")))]
glib::wrapper! {
    /// [`Range`][crate::Range] is the common base class for widgets which visualize an
    /// adjustment.
    ///
    /// Widgets that are derived from [`Range`][crate::Range] include
    /// [`Scale`][crate::Scale] and [`Scrollbar`][crate::Scrollbar].
    ///
    /// Apart from signals for monitoring the parameters of the adjustment,
    /// [`Range`][crate::Range] provides properties and methods for setting a
    /// “fill level” on range widgets. See [`RangeExt::set_fill_level()`][crate::prelude::RangeExt::set_fill_level()].
    ///
    /// # Implements
    ///
    /// [`RangeExt`][trait@crate::prelude::RangeExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`AccessibleRangeExt`][trait@crate::prelude::AccessibleRangeExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkRange")]
    pub struct Range(Object<ffi::GtkRange, ffi::GtkRangeClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, AccessibleRange, Orientable;

    match fn {
        type_ => || ffi::gtk_range_get_type(),
    }
}

#[cfg(not(any(feature = "v4_10", feature = "dox")))]
glib::wrapper! {
    #[doc(alias = "GtkRange")]
    pub struct Range(Object<ffi::GtkRange, ffi::GtkRangeClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, Orientable;

    match fn {
        type_ => || ffi::gtk_range_get_type(),
    }
}

impl Range {
    pub const NONE: Option<&'static Range> = None;
}

/// Trait containing all [`struct@Range`] methods.
///
/// # Implementors
///
/// [`Range`][struct@crate::Range], [`Scale`][struct@crate::Scale]
pub trait RangeExt: 'static {
    /// Get the adjustment which is the “model” object for [`Range`][crate::Range].
    ///
    /// # Returns
    ///
    /// a [`Adjustment`][crate::Adjustment]
    #[doc(alias = "gtk_range_get_adjustment")]
    #[doc(alias = "get_adjustment")]
    fn adjustment(&self) -> Adjustment;

    /// Gets the current position of the fill level indicator.
    ///
    /// # Returns
    ///
    /// The current fill level
    #[doc(alias = "gtk_range_get_fill_level")]
    #[doc(alias = "get_fill_level")]
    fn fill_level(&self) -> f64;

    /// Gets whether the [`Range`][crate::Range] respects text direction.
    ///
    /// See [`set_flippable()`][Self::set_flippable()].
    ///
    /// # Returns
    ///
    /// [`true`] if the range is flippable
    #[doc(alias = "gtk_range_get_flippable")]
    #[doc(alias = "get_flippable")]
    fn is_flippable(&self) -> bool;

    /// Gets whether the range is inverted.
    ///
    /// See [`set_inverted()`][Self::set_inverted()].
    ///
    /// # Returns
    ///
    /// [`true`] if the range is inverted
    #[doc(alias = "gtk_range_get_inverted")]
    #[doc(alias = "get_inverted")]
    fn is_inverted(&self) -> bool;

    /// This function returns the area that contains the range’s trough,
    /// in coordinates relative to @self's origin.
    ///
    /// This function is useful mainly for [`Range`][crate::Range] subclasses.
    ///
    /// # Returns
    ///
    ///
    /// ## `range_rect`
    /// return location for the range rectangle
    #[doc(alias = "gtk_range_get_range_rect")]
    #[doc(alias = "get_range_rect")]
    fn range_rect(&self) -> gdk::Rectangle;

    /// Gets whether the range is restricted to the fill level.
    ///
    /// # Returns
    ///
    /// [`true`] if @self is restricted to the fill level.
    #[doc(alias = "gtk_range_get_restrict_to_fill_level")]
    #[doc(alias = "get_restrict_to_fill_level")]
    fn restricts_to_fill_level(&self) -> bool;

    /// Gets the number of digits to round the value to when
    /// it changes.
    ///
    /// See `signal::Range::change-value`.
    ///
    /// # Returns
    ///
    /// the number of digits to round to
    #[doc(alias = "gtk_range_get_round_digits")]
    #[doc(alias = "get_round_digits")]
    fn round_digits(&self) -> i32;

    /// Gets whether the range displays the fill level graphically.
    ///
    /// # Returns
    ///
    /// [`true`] if @self shows the fill level.
    #[doc(alias = "gtk_range_get_show_fill_level")]
    #[doc(alias = "get_show_fill_level")]
    fn shows_fill_level(&self) -> bool;

    /// This function returns sliders range along the long dimension,
    /// in widget->window coordinates.
    ///
    /// This function is useful mainly for [`Range`][crate::Range] subclasses.
    ///
    /// # Returns
    ///
    ///
    /// ## `slider_start`
    /// return location for the slider's start
    ///
    /// ## `slider_end`
    /// return location for the slider's end
    #[doc(alias = "gtk_range_get_slider_range")]
    #[doc(alias = "get_slider_range")]
    fn slider_range(&self) -> (i32, i32);

    /// This function is useful mainly for [`Range`][crate::Range] subclasses.
    ///
    /// See [`set_slider_size_fixed()`][Self::set_slider_size_fixed()].
    ///
    /// # Returns
    ///
    /// whether the range’s slider has a fixed size.
    #[doc(alias = "gtk_range_get_slider_size_fixed")]
    #[doc(alias = "get_slider_size_fixed")]
    fn is_slider_size_fixed(&self) -> bool;

    /// Gets the current value of the range.
    ///
    /// # Returns
    ///
    /// current value of the range.
    #[doc(alias = "gtk_range_get_value")]
    #[doc(alias = "get_value")]
    fn value(&self) -> f64;

    /// Sets the adjustment to be used as the “model” object for the [`Range`][crate::Range]
    ///
    /// The adjustment indicates the current range value, the minimum and
    /// maximum range values, the step/page increments used for keybindings
    /// and scrolling, and the page size.
    ///
    /// The page size is normally 0 for [`Scale`][crate::Scale] and nonzero for [`Scrollbar`][crate::Scrollbar],
    /// and indicates the size of the visible area of the widget being scrolled.
    /// The page size affects the size of the scrollbar slider.
    /// ## `adjustment`
    /// a [`Adjustment`][crate::Adjustment]
    #[doc(alias = "gtk_range_set_adjustment")]
    fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>);

    /// Set the new position of the fill level indicator.
    ///
    /// The “fill level” is probably best described by its most prominent
    /// use case, which is an indicator for the amount of pre-buffering in
    /// a streaming media player. In that use case, the value of the range
    /// would indicate the current play position, and the fill level would
    /// be the position up to which the file/stream has been downloaded.
    ///
    /// This amount of prebuffering can be displayed on the range’s trough
    /// and is themeable separately from the trough. To enable fill level
    /// display, use [`set_show_fill_level()`][Self::set_show_fill_level()]. The range defaults
    /// to not showing the fill level.
    ///
    /// Additionally, it’s possible to restrict the range’s slider position
    /// to values which are smaller than the fill level. This is controlled
    /// by [`set_restrict_to_fill_level()`][Self::set_restrict_to_fill_level()] and is by default
    /// enabled.
    /// ## `fill_level`
    /// the new position of the fill level indicator
    #[doc(alias = "gtk_range_set_fill_level")]
    fn set_fill_level(&self, fill_level: f64);

    /// Sets whether the [`Range`][crate::Range] respects text direction.
    ///
    /// If a range is flippable, it will switch its direction
    /// if it is horizontal and its direction is [`TextDirection::Rtl`][crate::TextDirection::Rtl].
    ///
    /// See [`WidgetExt::direction()`][crate::prelude::WidgetExt::direction()].
    /// ## `flippable`
    /// [`true`] to make the range flippable
    #[doc(alias = "gtk_range_set_flippable")]
    fn set_flippable(&self, flippable: bool);

    /// Sets the step and page sizes for the range.
    ///
    /// The step size is used when the user clicks the [`Scrollbar`][crate::Scrollbar]
    /// arrows or moves a [`Scale`][crate::Scale] via arrow keys. The page size
    /// is used for example when moving via Page Up or Page Down keys.
    /// ## `step`
    /// step size
    /// ## `page`
    /// page size
    #[doc(alias = "gtk_range_set_increments")]
    fn set_increments(&self, step: f64, page: f64);

    /// Sets whether to invert the range.
    ///
    /// Ranges normally move from lower to higher values as the
    /// slider moves from top to bottom or left to right. Inverted
    /// ranges have higher values at the top or on the right rather
    /// than on the bottom or left.
    /// ## `setting`
    /// [`true`] to invert the range
    #[doc(alias = "gtk_range_set_inverted")]
    fn set_inverted(&self, setting: bool);

    /// Sets the allowable values in the [`Range`][crate::Range].
    ///
    /// The range value is clamped to be between @min and @max.
    /// (If the range has a non-zero page size, it is clamped
    /// between @min and @max - page-size.)
    /// ## `min`
    /// minimum range value
    /// ## `max`
    /// maximum range value
    #[doc(alias = "gtk_range_set_range")]
    fn set_range(&self, min: f64, max: f64);

    /// Sets whether the slider is restricted to the fill level.
    ///
    /// See [`set_fill_level()`][Self::set_fill_level()] for a general description
    /// of the fill level concept.
    /// ## `restrict_to_fill_level`
    /// Whether the fill level restricts slider movement.
    #[doc(alias = "gtk_range_set_restrict_to_fill_level")]
    fn set_restrict_to_fill_level(&self, restrict_to_fill_level: bool);

    /// Sets the number of digits to round the value to when
    /// it changes.
    ///
    /// See `signal::Range::change-value`.
    /// ## `round_digits`
    /// the precision in digits, or -1
    #[doc(alias = "gtk_range_set_round_digits")]
    fn set_round_digits(&self, round_digits: i32);

    /// Sets whether a graphical fill level is show on the trough.
    ///
    /// See [`set_fill_level()`][Self::set_fill_level()] for a general description
    /// of the fill level concept.
    /// ## `show_fill_level`
    /// Whether a fill level indicator graphics is shown.
    #[doc(alias = "gtk_range_set_show_fill_level")]
    fn set_show_fill_level(&self, show_fill_level: bool);

    /// Sets whether the range’s slider has a fixed size, or a size that
    /// depends on its adjustment’s page size.
    ///
    /// This function is useful mainly for [`Range`][crate::Range] subclasses.
    /// ## `size_fixed`
    /// [`true`] to make the slider size constant
    #[doc(alias = "gtk_range_set_slider_size_fixed")]
    fn set_slider_size_fixed(&self, size_fixed: bool);

    /// Sets the current value of the range.
    ///
    /// If the value is outside the minimum or maximum range values,
    /// it will be clamped to fit inside them. The range emits the
    /// `signal::Range::value-changed` signal if the value changes.
    /// ## `value`
    /// new value of the range
    #[doc(alias = "gtk_range_set_value")]
    fn set_value(&self, value: f64);

    /// Emitted before clamping a value, to give the application a
    /// chance to adjust the bounds.
    /// ## `value`
    /// the value before we clamp
    #[doc(alias = "adjust-bounds")]
    fn connect_adjust_bounds<F: Fn(&Self, f64) + 'static>(&self, f: F) -> SignalHandlerId;

    /// Emitted when a scroll action is performed on a range.
    ///
    /// It allows an application to determine the type of scroll event
    /// that occurred and the resultant new value. The application can
    /// handle the event itself and return [`true`] to prevent further
    /// processing. Or, by returning [`false`], it can pass the event to
    /// other handlers until the default GTK handler is reached.
    ///
    /// The value parameter is unrounded. An application that overrides
    /// the ::change-value signal is responsible for clamping the value
    /// to the desired number of decimal digits; the default GTK
    /// handler clamps the value based on `property::Range::round-digits`.
    /// ## `scroll`
    /// the type of scroll action that was performed
    /// ## `value`
    /// the new value resulting from the scroll action
    ///
    /// # Returns
    ///
    /// [`true`] to prevent other handlers from being invoked for
    ///     the signal, [`false`] to propagate the signal further
    #[doc(alias = "change-value")]
    fn connect_change_value<F: Fn(&Self, ScrollType, f64) -> glib::signal::Inhibit + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// Virtual function that moves the slider.
    ///
    /// Used for keybindings.
    /// ## `step`
    /// how to move the slider
    #[doc(alias = "move-slider")]
    fn connect_move_slider<F: Fn(&Self, ScrollType) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_move_slider(&self, step: ScrollType);

    /// Emitted when the range value changes.
    #[doc(alias = "value-changed")]
    fn connect_value_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "adjustment")]
    fn connect_adjustment_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "fill-level")]
    fn connect_fill_level_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "inverted")]
    fn connect_inverted_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "restrict-to-fill-level")]
    fn connect_restrict_to_fill_level_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    #[doc(alias = "round-digits")]
    fn connect_round_digits_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "show-fill-level")]
    fn connect_show_fill_level_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Range>> RangeExt for O {
    fn adjustment(&self) -> Adjustment {
        unsafe {
            from_glib_none(ffi::gtk_range_get_adjustment(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn fill_level(&self) -> f64 {
        unsafe { ffi::gtk_range_get_fill_level(self.as_ref().to_glib_none().0) }
    }

    fn is_flippable(&self) -> bool {
        unsafe { from_glib(ffi::gtk_range_get_flippable(self.as_ref().to_glib_none().0)) }
    }

    fn is_inverted(&self) -> bool {
        unsafe { from_glib(ffi::gtk_range_get_inverted(self.as_ref().to_glib_none().0)) }
    }

    fn range_rect(&self) -> gdk::Rectangle {
        unsafe {
            let mut range_rect = gdk::Rectangle::uninitialized();
            ffi::gtk_range_get_range_rect(
                self.as_ref().to_glib_none().0,
                range_rect.to_glib_none_mut().0,
            );
            range_rect
        }
    }

    fn restricts_to_fill_level(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_range_get_restrict_to_fill_level(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn round_digits(&self) -> i32 {
        unsafe { ffi::gtk_range_get_round_digits(self.as_ref().to_glib_none().0) }
    }

    fn shows_fill_level(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_range_get_show_fill_level(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn slider_range(&self) -> (i32, i32) {
        unsafe {
            let mut slider_start = mem::MaybeUninit::uninit();
            let mut slider_end = mem::MaybeUninit::uninit();
            ffi::gtk_range_get_slider_range(
                self.as_ref().to_glib_none().0,
                slider_start.as_mut_ptr(),
                slider_end.as_mut_ptr(),
            );
            (slider_start.assume_init(), slider_end.assume_init())
        }
    }

    fn is_slider_size_fixed(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_range_get_slider_size_fixed(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn value(&self) -> f64 {
        unsafe { ffi::gtk_range_get_value(self.as_ref().to_glib_none().0) }
    }

    fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>) {
        unsafe {
            ffi::gtk_range_set_adjustment(
                self.as_ref().to_glib_none().0,
                adjustment.as_ref().to_glib_none().0,
            );
        }
    }

    fn set_fill_level(&self, fill_level: f64) {
        unsafe {
            ffi::gtk_range_set_fill_level(self.as_ref().to_glib_none().0, fill_level);
        }
    }

    fn set_flippable(&self, flippable: bool) {
        unsafe {
            ffi::gtk_range_set_flippable(self.as_ref().to_glib_none().0, flippable.into_glib());
        }
    }

    fn set_increments(&self, step: f64, page: f64) {
        unsafe {
            ffi::gtk_range_set_increments(self.as_ref().to_glib_none().0, step, page);
        }
    }

    fn set_inverted(&self, setting: bool) {
        unsafe {
            ffi::gtk_range_set_inverted(self.as_ref().to_glib_none().0, setting.into_glib());
        }
    }

    fn set_range(&self, min: f64, max: f64) {
        unsafe {
            ffi::gtk_range_set_range(self.as_ref().to_glib_none().0, min, max);
        }
    }

    fn set_restrict_to_fill_level(&self, restrict_to_fill_level: bool) {
        unsafe {
            ffi::gtk_range_set_restrict_to_fill_level(
                self.as_ref().to_glib_none().0,
                restrict_to_fill_level.into_glib(),
            );
        }
    }

    fn set_round_digits(&self, round_digits: i32) {
        unsafe {
            ffi::gtk_range_set_round_digits(self.as_ref().to_glib_none().0, round_digits);
        }
    }

    fn set_show_fill_level(&self, show_fill_level: bool) {
        unsafe {
            ffi::gtk_range_set_show_fill_level(
                self.as_ref().to_glib_none().0,
                show_fill_level.into_glib(),
            );
        }
    }

    fn set_slider_size_fixed(&self, size_fixed: bool) {
        unsafe {
            ffi::gtk_range_set_slider_size_fixed(
                self.as_ref().to_glib_none().0,
                size_fixed.into_glib(),
            );
        }
    }

    fn set_value(&self, value: f64) {
        unsafe {
            ffi::gtk_range_set_value(self.as_ref().to_glib_none().0, value);
        }
    }

    fn connect_adjust_bounds<F: Fn(&Self, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn adjust_bounds_trampoline<P: IsA<Range>, F: Fn(&P, f64) + 'static>(
            this: *mut ffi::GtkRange,
            value: libc::c_double,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref(), value)
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"adjust-bounds\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    adjust_bounds_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_change_value<F: Fn(&Self, ScrollType, f64) -> glib::signal::Inhibit + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn change_value_trampoline<
            P: IsA<Range>,
            F: Fn(&P, ScrollType, f64) -> glib::signal::Inhibit + 'static,
        >(
            this: *mut ffi::GtkRange,
            scroll: ffi::GtkScrollType,
            value: libc::c_double,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(
                Range::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(scroll),
                value,
            )
            .into_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"change-value\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    change_value_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_move_slider<F: Fn(&Self, ScrollType) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn move_slider_trampoline<
            P: IsA<Range>,
            F: Fn(&P, ScrollType) + 'static,
        >(
            this: *mut ffi::GtkRange,
            step: ffi::GtkScrollType,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                Range::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(step),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-slider\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_slider_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_slider(&self, step: ScrollType) {
        self.emit_by_name::<()>("move-slider", &[&step]);
    }

    fn connect_value_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn value_changed_trampoline<P: IsA<Range>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkRange,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"value-changed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    value_changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_adjustment_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_adjustment_trampoline<P: IsA<Range>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::adjustment\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_adjustment_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_fill_level_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_fill_level_trampoline<P: IsA<Range>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::fill-level\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_fill_level_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_inverted_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_inverted_trampoline<P: IsA<Range>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::inverted\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_inverted_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_restrict_to_fill_level_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_restrict_to_fill_level_trampoline<
            P: IsA<Range>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::restrict-to-fill-level\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_restrict_to_fill_level_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_round_digits_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_round_digits_trampoline<P: IsA<Range>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::round-digits\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_round_digits_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_show_fill_level_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_fill_level_trampoline<
            P: IsA<Range>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkRange,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Range::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::show-fill-level\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_show_fill_level_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for Range {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("Range")
    }
}