// Take a look at the license at the top of the repository in the LICENSE file.

use crate::prelude::*;
use crate::{CellArea, CellAreaContext, CellRenderer, CellRendererState, Widget};
use gdk::Event;
use glib::translate::*;
use glib::{value::FromValue, IsA, ToValue};

// rustdoc-stripper-ignore-next
/// Trait containing manually implemented methods of [`CellArea`](crate::CellArea).
pub trait CellAreaExtManual {
    /// Adds @renderer to @self, setting cell properties at the same time.
    /// See gtk_cell_area_add() and gtk_cell_area_cell_set() for more details.
    /// ## `renderer`
    /// a [`CellRenderer`][crate::CellRenderer] to be placed inside @self
    /// ## `first_prop_name`
    /// the name of the first cell property to set
    #[doc(alias = "gtk_cell_area_add_with_properties")]
    fn add_with_properties(
        &self,
        renderer: &impl IsA<CellRenderer>,
        properties: &[(&str, &dyn ToValue)],
    );

    /// This is used by [`CellArea`][crate::CellArea] subclasses when handling events
    /// to activate cells, the base [`CellArea`][crate::CellArea] class activates cells
    /// for keyboard events for free in its own GtkCellArea->activate()
    /// implementation.
    /// ## `widget`
    /// the [`Widget`][crate::Widget] that @self is rendering onto
    /// ## `renderer`
    /// the [`CellRenderer`][crate::CellRenderer] in @self to activate
    /// ## `event`
    /// the [`gdk::Event`][crate::gdk::Event] for which cell activation should occur
    /// ## `cell_area`
    /// the [`gdk::Rectangle`][crate::gdk::Rectangle] in @widget relative coordinates
    ///             of @renderer for the current row.
    /// ## `flags`
    /// the [`CellRenderer`][crate::CellRenderer]State for @renderer
    ///
    /// # Returns
    ///
    /// whether cell activation was successful
    #[doc(alias = "gtk_cell_area_activate_cell")]
    fn activate_cell(
        &self,
        widget: &impl IsA<Widget>,
        renderer: &impl IsA<CellRenderer>,
        event: &impl AsRef<Event>,
        cell_area: &gdk::Rectangle,
        flags: CellRendererState,
    ) -> bool;

    /// Delegates event handling to a [`CellArea`][crate::CellArea].
    /// ## `context`
    /// the [`CellArea`][crate::CellArea]Context for this row of data.
    /// ## `widget`
    /// the [`Widget`][crate::Widget] that @self is rendering to
    /// ## `event`
    /// the [`gdk::Event`][crate::gdk::Event] to handle
    /// ## `cell_area`
    /// the @widget relative coordinates for @self
    /// ## `flags`
    /// the [`CellRenderer`][crate::CellRenderer]State for @self in this row.
    ///
    /// # Returns
    ///
    /// [`true`] if the event was handled by @self.
    #[doc(alias = "gtk_cell_area_event")]
    fn event(
        &self,
        context: &impl IsA<CellAreaContext>,
        widget: &impl IsA<Widget>,
        event: &impl AsRef<Event>,
        cell_area: &gdk::Rectangle,
        flags: CellRendererState,
    ) -> i32;

    #[doc(alias = "gtk_cell_area_cell_get_valist")]
    #[doc(alias = "gtk_cell_area_cell_get_property")]
    fn cell_get_value(&self, renderer: &impl IsA<CellRenderer>, property_name: &str)
        -> glib::Value;

    // rustdoc-stripper-ignore-next
    /// Similar to [`Self::cell_get_value`] but panics if the value is of a different type.
    #[doc(alias = "gtk_cell_area_cell_get_valist")]
    #[doc(alias = "gtk_cell_area_cell_get_property")]
    fn cell_get<V: for<'b> FromValue<'b> + 'static>(
        &self,
        renderer: &impl IsA<CellRenderer>,
        property_name: &str,
    ) -> V;

    #[doc(alias = "gtk_cell_area_cell_set_valist")]
    #[doc(alias = "gtk_cell_area_cell_set_property")]
    fn cell_set(&self, renderer: &impl IsA<CellRenderer>, property_name: &str, value: &dyn ToValue);
}

impl<O: IsA<CellArea>> CellAreaExtManual for O {
    fn add_with_properties(
        &self,
        renderer: &impl IsA<CellRenderer>,
        properties: &[(&str, &dyn ToValue)],
    ) {
        self.as_ref().add(renderer);
        properties.iter().for_each(|(property_name, value)| {
            self.as_ref().cell_set(renderer, property_name, *value);
        });
    }
    fn activate_cell(
        &self,
        widget: &impl IsA<Widget>,
        renderer: &impl IsA<CellRenderer>,
        event: &impl AsRef<Event>,
        cell_area: &gdk::Rectangle,
        flags: CellRendererState,
    ) -> bool {
        unsafe {
            from_glib(ffi::gtk_cell_area_activate_cell(
                self.as_ref().to_glib_none().0,
                widget.as_ref().to_glib_none().0,
                renderer.as_ref().to_glib_none().0,
                event.as_ref().to_glib_none().0,
                cell_area.to_glib_none().0,
                flags.into_glib(),
            ))
        }
    }

    fn cell_get_value(
        &self,
        renderer: &impl IsA<CellRenderer>,
        property_name: &str,
    ) -> glib::Value {
        unsafe {
            let cell_class = glib::Class::<CellArea>::from_type(O::static_type()).unwrap();
            let pspec: Option<glib::ParamSpec> =
                from_glib_none(ffi::gtk_cell_area_class_find_cell_property(
                    cell_class.as_ref() as *const _ as *mut ffi::GtkCellAreaClass,
                    property_name.to_glib_none().0,
                ));
            let pspec = pspec.unwrap_or_else(|| {
                panic!("The CellArea property {} doesn't exists", property_name)
            });
            let mut value = glib::Value::from_type(pspec.value_type());
            ffi::gtk_cell_area_cell_get_property(
                self.as_ref().to_glib_none().0,
                renderer.as_ref().to_glib_none().0,
                property_name.to_glib_none().0,
                value.to_glib_none_mut().0,
            );
            value
        }
    }

    fn cell_get<V: for<'b> FromValue<'b> + 'static>(
        &self,
        renderer: &impl IsA<CellRenderer>,
        property_name: &str,
    ) -> V {
        let value = self.cell_get_value(renderer, property_name);
        value
            .get_owned::<V>()
            .expect("Failed to get value of renderer")
    }

    fn cell_set(
        &self,
        renderer: &impl IsA<CellRenderer>,
        property_name: &str,
        value: &dyn ToValue,
    ) {
        unsafe {
            let cell_class = glib::Class::<CellArea>::from_type(O::static_type()).unwrap();
            let pspec: Option<glib::ParamSpec> =
                from_glib_none(ffi::gtk_cell_area_class_find_cell_property(
                    cell_class.as_ref() as *const _ as *mut ffi::GtkCellAreaClass,
                    property_name.to_glib_none().0,
                ));
            let pspec = pspec.unwrap_or_else(|| {
                panic!("The CellArea property {} doesn't exists", property_name)
            });

            assert!(
                pspec.value_type().is_a(value.value_type()),
                "The CellArea property's value is of wrong type. Expected '{}' but got '{}'",
                pspec.value_type(),
                value.value_type()
            );

            ffi::gtk_cell_area_cell_set_property(
                self.as_ref().to_glib_none().0,
                renderer.as_ref().to_glib_none().0,
                property_name.to_glib_none().0,
                value.to_value().to_glib_none().0,
            );
        }
    }

    fn event(
        &self,
        context: &impl IsA<CellAreaContext>,
        widget: &impl IsA<Widget>,
        event: &impl AsRef<Event>,
        cell_area: &gdk::Rectangle,
        flags: CellRendererState,
    ) -> i32 {
        unsafe {
            ffi::gtk_cell_area_event(
                self.as_ref().to_glib_none().0,
                context.as_ref().to_glib_none().0,
                widget.as_ref().to_glib_none().0,
                event.as_ref().to_glib_none().0,
                cell_area.to_glib_none().0,
                flags.into_glib(),
            )
        }
    }
}