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#![crate_name = "allegro_ttf"]
#![crate_type = "lib"]
extern crate allegro;
extern crate allegro_font;
extern crate allegro_ttf_sys;
#[macro_use]
extern crate allegro_util;
extern crate libc;
use allegro::Flag;
use allegro_font::{Font, FontAddon};
use allegro_ttf_sys::*;
use libc::*;
use std::ffi::CString;
flag_type! {
TtfFlags
{
TTF_NO_KERNING = ALLEGRO_TTF_NO_KERNING,
TTF_MONOCHROME = ALLEGRO_TTF_MONOCHROME,
TTF_NO_AUTOHINT = ALLEGRO_TTF_NO_AUTOHINT
}
}
pub struct TtfAddon
{
_dummy: (),
}
impl TtfAddon
{
pub fn init(_: &FontAddon) -> Result<TtfAddon, String>
{
use std::sync::Once;
static mut RUN_ONCE: Once = Once::new();
let mut res = Err("The TTF addon already initialized.".into());
unsafe {
RUN_ONCE.call_once(|| {
res = if al_init_ttf_addon() != 0
{
Ok(TtfAddon { _dummy: () })
}
else
{
Err("Could not initialize the TTF addon.".into())
}
})
}
res
}
pub fn get_version() -> i32
{
unsafe { al_get_allegro_ttf_version() as i32 }
}
pub fn load_ttf_font(&self, filename: &str, size: i32, flags: TtfFlags) -> Result<Font, ()>
{
let filename = CString::new(filename.as_bytes()).unwrap();
unsafe {
Font::wrap_allegro_font(al_load_ttf_font(
filename.as_ptr(),
size as c_int,
flags.get() as c_int,
))
}
}
pub fn load_ttf_font_stretch(
&self, filename: &str, width: i32, height: i32, flags: TtfFlags,
) -> Result<Font, String>
{
if width < 0 && height >= 0 || width >= 0 && height < 0
{
Err("Invalid dimension combination.".to_string())
}
else
{
let filename = CString::new(filename.as_bytes()).unwrap();
unsafe {
Font::wrap_allegro_font(al_load_ttf_font_stretch(
filename.as_ptr(),
width as c_int,
height as c_int,
flags.get() as c_int,
))
.map_err(|_| "Failed to load the ttf font.".to_string())
}
}
}
}