use glium::Program;
use glium::backend::Facade;

#[derive(Copy, Clone, Debug)]
struct Vertex {
    position: [u32; 2],
    tex_coords: [u32; 2],
}

implement_vertex!(Vertex, position, tex_coords);

static SHADER_FRAG_140: &'static str = include_str!("gl_renderer_140.frag");
static SHADER_VERT_140: &'static str = include_str!("gl_renderer_140.vert");

pub struct TextRenderer {
    gl_program: Program,
}

impl TextRenderer {
    pub fn new<F>(display: &F) -> TextRenderer where F: Facade {
        let program = program!(display,
            140 => {
                vertex: SHADER_VERT_140,
                fragment: SHADER_FRAG_140,
            },
        ).expect("textium: could not compile glium renderer shaders");

        TextRenderer {
            gl_program: program,
        }
    }

    // pub fn draw(text: RenderableText)
}