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

#[cfg(feature = "v1_16")]
use std::ffi::CString;
use std::hash;
#[cfg(not(feature = "use_glib"))]
use std::ptr;

#[cfg(feature = "use_glib")]
use glib::translate::*;

#[cfg(feature = "v1_16")]
use crate::font::font_face::to_optional_string;
use crate::{utils::status_to_result, Antialias, Error, HintMetrics, HintStyle, SubpixelOrder};

#[cfg(feature = "use_glib")]
glib::wrapper! {
    #[derive(Debug)]
    #[doc(alias = "cairo_font_options_t")]
    pub struct FontOptions(Boxed<ffi::cairo_font_options_t>);

    match fn {
        copy => |ptr| {
            let ptr = ffi::cairo_font_options_copy(ptr);
            let status = ffi::cairo_font_options_status(ptr);
            status_to_result(status).expect("Failed to create a copy of FontOptions");
            ptr
        },
        free => |ptr| ffi::cairo_font_options_destroy(ptr),
        type_ => || ffi::gobject::cairo_gobject_font_options_get_type(),
    }
}

#[cfg(not(feature = "use_glib"))]
#[cfg_attr(docsrs, doc(cfg(not(feature = "use_glib"))))]
#[derive(Debug)]
#[doc(alias = "cairo_font_options_t")]
pub struct FontOptions(ptr::NonNull<ffi::cairo_font_options_t>);

unsafe impl Send for FontOptions {}
unsafe impl Sync for FontOptions {}

impl FontOptions {
    #[doc(alias = "cairo_font_options_create")]
    pub fn new() -> Result<FontOptions, Error> {
        let font_options: FontOptions =
            unsafe { FontOptions::from_raw_full(ffi::cairo_font_options_create()) };

        let status = unsafe { ffi::cairo_font_options_status(font_options.to_raw_none()) };
        status_to_result(status)?;

        Ok(font_options)
    }

    #[cfg(feature = "use_glib")]
    #[cfg_attr(docsrs, doc(cfg(feature = "use_glib")))]
    #[inline]
    pub unsafe fn from_raw_full(ptr: *mut ffi::cairo_font_options_t) -> Self {
        from_glib_full(ptr)
    }

    #[cfg(not(feature = "use_glib"))]
    #[cfg_attr(docsrs, doc(cfg(not(feature = "use_glib"))))]
    #[inline]
    pub unsafe fn from_raw_full(ptr: *mut ffi::cairo_font_options_t) -> Self {
        debug_assert!(!ptr.is_null());
        Self(ptr::NonNull::new_unchecked(ptr))
    }

    #[cfg(feature = "use_glib")]
    #[cfg_attr(docsrs, doc(cfg(feature = "use_glib")))]
    #[inline]
    pub fn to_raw_none(&self) -> *mut ffi::cairo_font_options_t {
        mut_override(self.to_glib_none().0)
    }

    #[cfg(not(feature = "use_glib"))]
    #[cfg_attr(docsrs, doc(cfg(not(feature = "use_glib"))))]
    #[inline]
    pub fn to_raw_none(&self) -> *mut ffi::cairo_font_options_t {
        self.0.as_ptr()
    }

    #[doc(alias = "cairo_font_options_merge")]
    pub fn merge(&mut self, other: &FontOptions) {
        unsafe { ffi::cairo_font_options_merge(self.to_raw_none(), other.to_raw_none()) }
    }

    #[doc(alias = "cairo_font_options_set_antialias")]
    pub fn set_antialias(&mut self, antialias: Antialias) {
        unsafe { ffi::cairo_font_options_set_antialias(self.to_raw_none(), antialias.into()) }
    }

    #[doc(alias = "cairo_font_options_get_antialias")]
    #[doc(alias = "get_antialias")]
    pub fn antialias(&self) -> Antialias {
        unsafe { Antialias::from(ffi::cairo_font_options_get_antialias(self.to_raw_none())) }
    }

    #[doc(alias = "cairo_font_options_set_subpixel_order")]
    pub fn set_subpixel_order(&mut self, order: SubpixelOrder) {
        unsafe { ffi::cairo_font_options_set_subpixel_order(self.to_raw_none(), order.into()) }
    }

    #[doc(alias = "cairo_font_options_get_subpixel_order")]
    #[doc(alias = "get_subpixel_order")]
    pub fn subpixel_order(&self) -> SubpixelOrder {
        unsafe {
            SubpixelOrder::from(ffi::cairo_font_options_get_subpixel_order(
                self.to_raw_none(),
            ))
        }
    }

    #[doc(alias = "cairo_font_options_set_hint_style")]
    pub fn set_hint_style(&mut self, hint_style: HintStyle) {
        unsafe { ffi::cairo_font_options_set_hint_style(self.to_raw_none(), hint_style.into()) }
    }

    #[doc(alias = "cairo_font_options_get_hint_style")]
    #[doc(alias = "get_hint_style")]
    pub fn hint_style(&self) -> HintStyle {
        unsafe { HintStyle::from(ffi::cairo_font_options_get_hint_style(self.to_raw_none())) }
    }

    #[doc(alias = "cairo_font_options_set_hint_metrics")]
    pub fn set_hint_metrics(&mut self, hint_metrics: HintMetrics) {
        unsafe { ffi::cairo_font_options_set_hint_metrics(self.to_raw_none(), hint_metrics.into()) }
    }

    #[doc(alias = "cairo_font_options_get_hint_metrics")]
    #[doc(alias = "get_hint_metrics")]
    pub fn hint_metrics(&self) -> HintMetrics {
        unsafe { HintMetrics::from(ffi::cairo_font_options_get_hint_metrics(self.to_raw_none())) }
    }

    #[cfg(feature = "v1_16")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_16")))]
    #[doc(alias = "cairo_font_options_get_variations")]
    #[doc(alias = "get_variations")]
    pub fn variations(&self) -> Option<String> {
        unsafe { to_optional_string(ffi::cairo_font_options_get_variations(self.to_raw_none())) }
    }

    #[cfg(feature = "v1_16")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v1_16")))]
    #[doc(alias = "cairo_font_options_set_variations")]
    pub fn set_variations(&self, variations: Option<&str>) {
        unsafe {
            match variations {
                Some(v) => {
                    let v = CString::new(v).unwrap();
                    ffi::cairo_font_options_set_variations(self.to_raw_none(), v.as_ptr())
                }
                None => {
                    ffi::cairo_font_options_set_variations(self.to_raw_none(), std::ptr::null())
                }
            }
        }
    }

    #[doc(alias = "cairo_font_options_status")]
    pub fn status(&self) -> Result<(), Error> {
        let status = unsafe { ffi::cairo_font_options_status(self.to_raw_none()) };
        status_to_result(status)
    }
}

impl PartialEq for FontOptions {
    #[doc(alias = "cairo_font_options_equal")]
    fn eq(&self, other: &FontOptions) -> bool {
        unsafe { ffi::cairo_font_options_equal(self.to_raw_none(), other.to_raw_none()).as_bool() }
    }
}

impl Eq for FontOptions {}

impl hash::Hash for FontOptions {
    #[doc(alias = "cairo_font_options_hash")]
    fn hash<H>(&self, state: &mut H)
    where
        H: hash::Hasher,
    {
        unsafe { hash::Hash::hash(&ffi::cairo_font_options_hash(self.to_raw_none()), state) }
    }
}

#[cfg(not(feature = "use_glib"))]
#[cfg_attr(docsrs, doc(cfg(not(feature = "use_glib"))))]
impl Drop for FontOptions {
    #[inline]
    fn drop(&mut self) {
        unsafe {
            ffi::cairo_font_options_destroy(self.to_raw_none());
        }
    }
}

#[cfg(not(feature = "use_glib"))]
#[cfg_attr(docsrs, doc(cfg(not(feature = "use_glib"))))]
impl Clone for FontOptions {
    #[inline]
    fn clone(&self) -> FontOptions {
        unsafe { FontOptions::from_raw_full(ffi::cairo_font_options_copy(self.to_raw_none())) }
    }
}