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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)
// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
// DO NOT EDIT

use crate::Container;
use crate::Extractable;
use crate::MetaContainer;
use crate::TimelineElement;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::mem::transmute;

glib::wrapper! {
    /// A [`Group`][crate::Group] controls one or more [`Container`][crate::Container]-s (usually [`Clip`][crate::Clip]-s,
    /// but it can also control other [`Group`][crate::Group]-s). Its children must share
    /// the same [`Timeline`][crate::Timeline], but can otherwise lie in separate [`Layer`][crate::Layer]-s
    /// and have different timings.
    ///
    /// To initialise a group, you may want to use [`Container::group()`][crate::Container::group()],
    /// and similarly use [`GESContainerExt::ungroup()`][crate::prelude::GESContainerExt::ungroup()] to dispose of it.
    ///
    /// A group will maintain the relative `property::TimelineElement::start` times of
    /// its children, as well as their relative layer `property::Layer::priority`.
    /// Therefore, if one of its children has its `property::TimelineElement::start`
    /// set, all other children will have their `property::TimelineElement::start`
    /// shifted by the same amount. Similarly, if one of its children moves to
    /// a new layer, the other children will also change layers to maintain the
    /// difference in their layer priorities. For example, if a child moves
    /// from a layer with `property::Layer::priority` 1 to a layer with priority 3, then
    /// another child that was in a layer with priority 0 will move to the
    /// layer with priority 2.
    ///
    /// The `property::Group::start` of a group refers to the earliest start
    /// time of its children. If the group's `property::Group::start` is set, all the
    /// children will be shifted equally such that the earliest start time
    /// will match the set value. The `property::Group::duration` of a group is the
    /// difference between the earliest start time and latest end time of its
    /// children. If the group's `property::Group::duration` is increased, the children
    /// whose end time matches the end of the group will be extended
    /// accordingly. If it is decreased, then any child whose end time exceeds
    /// the new end time will also have their duration decreased accordingly.
    ///
    /// A group may span several layers, but for methods such as
    /// [`TimelineElementExt::layer_priority()`][crate::prelude::TimelineElementExt::layer_priority()] and
    /// [`TimelineElementExt::edit()`][crate::prelude::TimelineElementExt::edit()] a group is considered to have a layer
    /// priority that is the highest `property::Layer::priority` (numerically, the
    /// smallest) of all the layers it spans.
    ///
    /// # Implements
    ///
    /// [`GroupExt`][trait@crate::prelude::GroupExt], [`GESContainerExt`][trait@crate::prelude::GESContainerExt], [`TimelineElementExt`][trait@crate::prelude::TimelineElementExt], [`trait@glib::ObjectExt`], [`ExtractableExt`][trait@crate::prelude::ExtractableExt], [`MetaContainerExt`][trait@crate::prelude::MetaContainerExt], [`TimelineElementExtManual`][trait@crate::prelude::TimelineElementExtManual]
    #[doc(alias = "GESGroup")]
    pub struct Group(Object<ffi::GESGroup, ffi::GESGroupClass>) @extends Container, TimelineElement, @implements Extractable, MetaContainer;

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

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

    /// Created a new empty group. You may wish to use
    /// [`Container::group()`][crate::Container::group()] instead, which can return a different
    /// [`Container`][crate::Container] subclass if possible.
    ///
    /// # Returns
    ///
    /// The new empty group.
    #[doc(alias = "ges_group_new")]
    pub fn new() -> Group {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ffi::ges_group_new()) }
    }
}

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

/// Trait containing all [`struct@Group`] methods.
///
/// # Implementors
///
/// [`Group`][struct@crate::Group]
pub trait GroupExt: 'static {
    /// An overwrite of the `property::TimelineElement::duration` property. For a
    /// [`Group`][crate::Group], this is the difference between the earliest
    /// `property::TimelineElement::start` time and the latest end time (given by
    /// `property::TimelineElement::start` + `property::TimelineElement::duration`) amongst
    /// its children.
    fn duration(&self) -> u64;

    /// An overwrite of the `property::TimelineElement::duration` property. For a
    /// [`Group`][crate::Group], this is the difference between the earliest
    /// `property::TimelineElement::start` time and the latest end time (given by
    /// `property::TimelineElement::start` + `property::TimelineElement::duration`) amongst
    /// its children.
    fn set_duration(&self, duration: u64);

    /// An overwrite of the `property::TimelineElement::in-point` property. This has
    /// no meaning for a group and should not be set.
    #[doc(alias = "in-point")]
    fn in_point(&self) -> u64;

    /// An overwrite of the `property::TimelineElement::in-point` property. This has
    /// no meaning for a group and should not be set.
    #[doc(alias = "in-point")]
    fn set_in_point(&self, in_point: u64);

    /// An overwrite of the `property::TimelineElement::max-duration` property. This
    /// has no meaning for a group and should not be set.
    #[doc(alias = "max-duration")]
    fn max_duration(&self) -> u64;

    /// An overwrite of the `property::TimelineElement::max-duration` property. This
    /// has no meaning for a group and should not be set.
    #[doc(alias = "max-duration")]
    fn set_max_duration(&self, max_duration: u64);

    /// An overwrite of the `property::TimelineElement::priority` property.
    /// Setting [`TimelineElement`][crate::TimelineElement] priorities is deprecated as all priority
    /// management is now done by GES itself.
    fn priority(&self) -> u32;

    /// An overwrite of the `property::TimelineElement::priority` property.
    /// Setting [`TimelineElement`][crate::TimelineElement] priorities is deprecated as all priority
    /// management is now done by GES itself.
    fn set_priority(&self, priority: u32);

    /// An overwrite of the `property::TimelineElement::start` property. For a
    /// [`Group`][crate::Group], this is the earliest `property::TimelineElement::start` time
    /// amongst its children.
    fn start(&self) -> u64;

    /// An overwrite of the `property::TimelineElement::start` property. For a
    /// [`Group`][crate::Group], this is the earliest `property::TimelineElement::start` time
    /// amongst its children.
    fn set_start(&self, start: u64);

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

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

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

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

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

impl<O: IsA<Group>> GroupExt for O {
    fn duration(&self) -> u64 {
        glib::ObjectExt::property(self.as_ref(), "duration")
    }

    fn set_duration(&self, duration: u64) {
        glib::ObjectExt::set_property(self.as_ref(), "duration", &duration)
    }

    fn in_point(&self) -> u64 {
        glib::ObjectExt::property(self.as_ref(), "in-point")
    }

    fn set_in_point(&self, in_point: u64) {
        glib::ObjectExt::set_property(self.as_ref(), "in-point", &in_point)
    }

    fn max_duration(&self) -> u64 {
        glib::ObjectExt::property(self.as_ref(), "max-duration")
    }

    fn set_max_duration(&self, max_duration: u64) {
        glib::ObjectExt::set_property(self.as_ref(), "max-duration", &max_duration)
    }

    fn priority(&self) -> u32 {
        glib::ObjectExt::property(self.as_ref(), "priority")
    }

    fn set_priority(&self, priority: u32) {
        glib::ObjectExt::set_property(self.as_ref(), "priority", &priority)
    }

    fn start(&self) -> u64 {
        glib::ObjectExt::property(self.as_ref(), "start")
    }

    fn set_start(&self, start: u64) {
        glib::ObjectExt::set_property(self.as_ref(), "start", &start)
    }

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

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

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

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

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