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use core::ptr::null_mut;
use {ffi, BBox, BitmapGlyph, FtResult, Matrix, RenderMode, Stroker, Vector};
pub struct Glyph {
library_raw: ffi::FT_Library,
raw: ffi::FT_Glyph
}
impl Glyph {
pub unsafe fn from_raw(library_raw: ffi::FT_Library, raw: ffi::FT_Glyph) -> Self {
ffi::FT_Reference_Library(library_raw);
Glyph { library_raw, raw }
}
pub fn transform(&self, mut matrix: Option<Matrix>, mut delta: Option<Vector>) -> FtResult<()> {
let mut p_matrix = null_mut();
let mut p_delta = null_mut();
if let Some(ref mut m) = matrix {
p_matrix = m as *mut Matrix;
}
if let Some(ref mut d) = delta {
p_delta = d as *mut Vector;
}
::error::from_ftret(unsafe { ffi::FT_Glyph_Transform(self.raw, p_matrix, p_delta) })
}
pub fn get_cbox(&self, bbox_mode: ffi::FT_Glyph_BBox_Mode) -> BBox {
let mut acbox = ffi::FT_BBox {
xMin: 0,
yMin: 0,
xMax: 0,
yMax: 0,
};
unsafe { ffi::FT_Glyph_Get_CBox(self.raw, bbox_mode, &mut acbox) };
acbox
}
pub fn to_bitmap(&self, render_mode: RenderMode, mut origin: Option<Vector>) -> FtResult<BitmapGlyph> {
let mut the_glyph = self.raw;
let mut p_origin = null_mut();
if let Some(ref mut o) = origin {
p_origin = o as *mut Vector;
}
Ok(unsafe {
::error::from_ftret(ffi::FT_Glyph_To_Bitmap(&mut the_glyph, render_mode as u32, p_origin, 0))?;
BitmapGlyph::from_raw(self.library_raw, the_glyph as ffi::FT_BitmapGlyph)
})
}
pub fn stroke(&self, stroker: &Stroker) -> FtResult<Glyph> {
let mut the_glyph = self.raw;
Ok(unsafe {
::error::from_ftret(ffi::FT_Glyph_Stroke(&mut the_glyph, stroker.raw_stroker(), false as ffi::FT_Bool))?;
Glyph::from_raw(self.library_raw, the_glyph)
})
}
pub fn stroke_border(&self, stroker: &Stroker, inside: bool) -> FtResult<Glyph> {
let mut the_glyph = self.raw;
Ok(unsafe {
::error::from_ftret(ffi::FT_Glyph_StrokeBorder(&mut the_glyph, stroker.raw_stroker(), inside as ffi::FT_Bool, false as ffi::FT_Bool))?;
Glyph::from_raw(self.library_raw, the_glyph)
})
}
pub fn advance_x(&self) -> isize {
unsafe { (*self.raw).advance.x as isize }
}
pub fn advance_y(&self) -> isize {
unsafe { (*self.raw).advance.y as isize }
}
#[inline(always)]
pub fn format(&self) -> ffi::FT_Glyph_Format {
unsafe { (*self.raw).format }
}
#[inline(always)]
pub fn raw(&self) -> &ffi::FT_GlyphRec {
unsafe { &*self.raw }
}
}
impl ::fallible::TryClone for Glyph {
type Error = ::error::Error;
fn try_clone(&self) -> FtResult<Self> { unsafe {
let mut target = null_mut();
::error::from_ftret(ffi::FT_Glyph_Copy(self.raw, &mut target))?;
Ok(Glyph::from_raw(self.library_raw, target))
} }
}
impl Drop for Glyph {
fn drop(&mut self) { unsafe {
ffi::FT_Done_Glyph(self.raw);
::error::from_ftret(ffi::FT_Done_Library(self.library_raw)).expect("Failed to drop library");
} }
}