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#![crate_name="allegro_ttf"]
#![crate_type = "lib"]
#![allow(non_upper_case_globals)]
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::{FontAddon, Font};
use allegro_ttf_sys::*;
use libc::*;
use std::cell::RefCell;
use std::marker::PhantomData;
use std::ffi::CString;
static mut initialized: bool = false;
thread_local!(static spawned_on_this_thread: RefCell<bool> = RefCell::new(false));
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
{
no_send_marker: PhantomData<*mut u8>
}
impl TtfAddon
{
pub fn init(font_addon: &FontAddon) -> Result<TtfAddon, String>
{
let mutex = font_addon.get_core_mutex();
let _guard = mutex.lock();
unsafe
{
if initialized
{
if spawned_on_this_thread.with(|x| *x.borrow())
{
Err("The ttf addon has already been created in this task.".to_string())
}
else
{
spawned_on_this_thread.with(|x| *x.borrow_mut() = true);
Ok(TtfAddon{ no_send_marker: PhantomData })
}
}
else
{
if al_init_ttf_addon() != 0
{
initialized = true;
spawned_on_this_thread.with(|x| *x.borrow_mut() = true);
Ok(TtfAddon{ no_send_marker: PhantomData })
}
else
{
Err("Could not initialize the ttf addon.".to_string())
}
}
}
}
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())
}
}
}
}