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// 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::Box;
use crate::Buildable;
use crate::Container;
use crate::Orientable;
use crate::Stack;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib::wrapper! {
    /// The GtkStackSwitcher widget acts as a controller for a
    /// [`Stack`][crate::Stack]; it shows a row of buttons to switch between
    /// the various pages of the associated stack widget.
    ///
    /// All the content for the buttons comes from the child properties
    /// of the [`Stack`][crate::Stack]; the button visibility in a [`StackSwitcher`][crate::StackSwitcher]
    /// widget is controlled by the visibility of the child in the
    /// [`Stack`][crate::Stack].
    ///
    /// It is possible to associate multiple [`StackSwitcher`][crate::StackSwitcher] widgets
    /// with the same [`Stack`][crate::Stack] widget.
    ///
    /// The GtkStackSwitcher widget was added in 3.10.
    ///
    /// # CSS nodes
    ///
    /// GtkStackSwitcher has a single CSS node named stackswitcher and
    /// style class .stack-switcher.
    ///
    /// When circumstances require it, GtkStackSwitcher adds the
    /// .needs-attention style class to the widgets representing the
    /// stack pages.
    ///
    /// # Implements
    ///
    /// [`StackSwitcherExt`][trait@crate::prelude::StackSwitcherExt], [`BoxExt`][trait@crate::prelude::BoxExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`StackSwitcherExtManual`][trait@crate::prelude::StackSwitcherExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkStackSwitcher")]
    pub struct StackSwitcher(Object<ffi::GtkStackSwitcher, ffi::GtkStackSwitcherClass>) @extends Box, Container, Widget, @implements Buildable, Orientable;

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

impl StackSwitcher {
    /// Create a new [`StackSwitcher`][crate::StackSwitcher].
    ///
    /// # Returns
    ///
    /// a new [`StackSwitcher`][crate::StackSwitcher].
    #[doc(alias = "gtk_stack_switcher_new")]
    pub fn new() -> StackSwitcher {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_stack_switcher_new()).unsafe_cast() }
    }
}

impl Default for StackSwitcher {
    fn default() -> Self {
        Self::new()
    }
}

pub const NONE_STACK_SWITCHER: Option<&StackSwitcher> = None;

/// Trait containing all [`struct@StackSwitcher`] methods.
///
/// # Implementors
///
/// [`StackSwitcher`][struct@crate::StackSwitcher]
pub trait StackSwitcherExt: 'static {
    /// Retrieves the stack.
    /// See [`set_stack()`][Self::set_stack()].
    ///
    /// # Returns
    ///
    /// the stack, or [`None`] if
    ///  none has been set explicitly.
    #[doc(alias = "gtk_stack_switcher_get_stack")]
    #[doc(alias = "get_stack")]
    fn stack(&self) -> Option<Stack>;

    /// Sets the stack to control.
    /// ## `stack`
    /// a [`Stack`][crate::Stack]
    #[doc(alias = "gtk_stack_switcher_set_stack")]
    fn set_stack<P: IsA<Stack>>(&self, stack: Option<&P>);

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

impl<O: IsA<StackSwitcher>> StackSwitcherExt for O {
    fn stack(&self) -> Option<Stack> {
        unsafe {
            from_glib_none(ffi::gtk_stack_switcher_get_stack(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn set_stack<P: IsA<Stack>>(&self, stack: Option<&P>) {
        unsafe {
            ffi::gtk_stack_switcher_set_stack(
                self.as_ref().to_glib_none().0,
                stack.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

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

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