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macro_rules! declare_surface {
($surf_name:ident, $surf_type:expr) => {
#[derive(Debug)]
pub struct $surf_name(Surface);
impl TryFrom<Surface> for $surf_name {
type Error = Surface;
fn try_from(surface: Surface) -> Result<$surf_name, Surface> {
if surface.type_() == $surf_type {
Ok($surf_name(surface))
} else {
Err(surface)
}
}
}
impl $surf_name {
pub unsafe fn from_raw_full(
ptr: *mut ffi::cairo_surface_t,
) -> Result<$surf_name, crate::error::Error> {
let surface = Surface::from_raw_full(ptr)?;
Self::try_from(surface).map_err(|_| crate::error::Error::SurfaceTypeMismatch)
}
}
#[cfg(feature = "use_glib")]
impl<'a> ToGlibPtr<'a, *mut ffi::cairo_surface_t> for $surf_name {
type Storage = &'a Surface;
#[inline]
fn to_glib_none(&'a self) -> Stash<'a, *mut ffi::cairo_surface_t, Self> {
let stash = self.0.to_glib_none();
Stash(stash.0, stash.1)
}
#[inline]
fn to_glib_full(&self) -> *mut ffi::cairo_surface_t {
unsafe { ffi::cairo_surface_reference(self.to_glib_none().0) }
}
}
#[cfg(feature = "use_glib")]
impl FromGlibPtrNone<*mut ffi::cairo_surface_t> for $surf_name {
#[inline]
unsafe fn from_glib_none(ptr: *mut ffi::cairo_surface_t) -> $surf_name {
Self::try_from(from_glib_none::<_, Surface>(ptr)).unwrap()
}
}
#[cfg(feature = "use_glib")]
impl FromGlibPtrBorrow<*mut ffi::cairo_surface_t> for $surf_name {
#[inline]
unsafe fn from_glib_borrow(
ptr: *mut ffi::cairo_surface_t,
) -> crate::Borrowed<$surf_name> {
let surface = from_glib_borrow::<_, Surface>(ptr);
let surface = Self::try_from(surface.into_inner())
.map_err(std::mem::forget)
.unwrap();
crate::Borrowed::new(surface)
}
}
#[cfg(feature = "use_glib")]
impl FromGlibPtrFull<*mut ffi::cairo_surface_t> for $surf_name {
#[inline]
unsafe fn from_glib_full(ptr: *mut ffi::cairo_surface_t) -> $surf_name {
Self::from_raw_full(ptr).unwrap()
}
}
#[cfg(feature = "use_glib")]
gvalue_impl!(
$surf_name,
ffi::cairo_surface_t,
ffi::gobject::cairo_gobject_surface_get_type
);
impl Deref for $surf_name {
type Target = Surface;
fn deref(&self) -> &Surface {
&self.0
}
}
impl Clone for $surf_name {
fn clone(&self) -> $surf_name {
$surf_name(self.0.clone())
}
}
impl fmt::Display for $surf_name {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(stringify!($surf_name))
}
}
};
}