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use std::mem;
use libc::c_void;
#[cfg(any(target_os = "macos", target_os = "ios"))]
use ffi::enums::Format;
#[cfg(any(target_os = "macos", target_os = "ios"))]
use ffi::CGContextRef;
#[cfg(feature = "use_glib")]
use glib::translate::*;
use ffi;
use ffi::enums::{
Content,
Status,
SurfaceType,
};
#[derive(Debug)]
pub struct Surface(*mut ffi::cairo_surface_t);
impl Surface {
#[doc(hidden)]
pub unsafe fn from_raw_none(ptr: *mut ffi::cairo_surface_t) -> Surface {
assert!(!ptr.is_null());
ffi::cairo_surface_reference(ptr);
Surface(ptr)
}
#[doc(hidden)]
pub unsafe fn from_raw_full(ptr: *mut ffi::cairo_surface_t) -> Surface {
assert!(!ptr.is_null());
Surface(ptr)
}
#[doc(hidden)]
pub fn to_raw_none(&self) -> *mut ffi::cairo_surface_t {
self.0
}
pub fn status(&self) -> Status {
unsafe { ffi::cairo_surface_status(self.0) }
}
pub fn create_similar(&self, content: Content, width: i32, height: i32) -> Surface {
unsafe { Self::from_raw_full(ffi::cairo_surface_create_similar(self.0, content, width, height)) }
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
pub fn quartz_create(format: Format, width: u32, height: u32) -> Surface {
unsafe { Self::from_raw_full(ffi::cairo_quartz_surface_create(format, width, height)) }
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
pub fn quartz_create_for_cg_context(cg_context: CGContextRef, width: u32, height: u32) -> Surface {
unsafe { Self::from_raw_full(ffi::cairo_quartz_surface_create_for_cg_context(cg_context, width, height)) }
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
pub fn quartz_get_cg_context(&self) -> CGContextRef {
unsafe { ffi::cairo_quartz_surface_get_cg_context(self.to_raw_none()) }
}
}
#[cfg(feature = "use_glib")]
impl<'a> ToGlibPtr<'a, *mut ffi::cairo_surface_t> for Surface {
type Storage = &'a Surface;
#[inline]
fn to_glib_none(&'a self) -> Stash<'a, *mut ffi::cairo_surface_t, Self> {
Stash(self.to_raw_none(), self)
}
}
#[cfg(feature = "use_glib")]
impl FromGlibPtrNone<*mut ffi::cairo_surface_t> for Surface {
#[inline]
unsafe fn from_glib_none(ptr: *mut ffi::cairo_surface_t) -> Surface {
Self::from_raw_none(ptr)
}
}
#[cfg(feature = "use_glib")]
impl FromGlibPtrFull<*mut ffi::cairo_surface_t> for Surface {
#[inline]
unsafe fn from_glib_full(ptr: *mut ffi::cairo_surface_t) -> Surface {
Self::from_raw_full(ptr)
}
}
impl AsRef<Surface> for Surface {
fn as_ref(&self) -> &Surface {
self
}
}
impl Clone for Surface {
fn clone(&self) -> Surface {
unsafe { Self::from_raw_none(self.0) }
}
}
impl Drop for Surface {
fn drop(&mut self) {
unsafe { ffi::cairo_surface_destroy(self.0); }
}
}
pub trait SurfaceExt {
fn flush(&self);
fn finish(&self);
fn get_type(&self) -> SurfaceType;
}
impl<O: AsRef<Surface>> SurfaceExt for O {
fn flush(&self) {
unsafe { ffi::cairo_surface_flush(self.as_ref().0); }
}
fn finish(&self) {
unsafe { ffi::cairo_surface_finish(self.as_ref().0); }
}
fn get_type(&self) -> SurfaceType {
unsafe { ffi::cairo_surface_get_type(self.as_ref().0) }
}
}
pub trait SurfacePriv {
unsafe fn set_user_data<K, T>(&self, key: &K, data: Box<T>) -> Result<(), Status>;
}
impl<O: AsRef<Surface>> SurfacePriv for O {
unsafe fn set_user_data<K, T>(&self, key: &K, data: Box<T>) -> Result<(), Status> {
let status = ffi::cairo_surface_set_user_data(self.as_ref().0, mem::transmute(key),
mem::transmute(data), Some(unbox::<T>));
match status {
Status::Success => Ok(()),
x => Err(x),
}
}
}
unsafe extern "C" fn unbox<T>(data: *mut c_void) {
let data: Box<T> = mem::transmute(data);
drop(data);
}