use agg::{Pixfmt,Rgb8,Rgba8};
use agg::PixelData;
use agg::PixelDraw;
use agg::Render;

#[test]
fn t21_line_join() {

    let pix = Pixfmt::<Rgb8>::new(300,100);
    let mut ren_base = agg::RenderingBase::new(pix);
    ren_base.clear( Rgba8::new(255, 255, 255, 255) );

    let joins = [ agg::LineJoin::Miter,
                  //agg::LineJoin::MiterRevert,
                  //agg::LineJoin::MiterRound,
                  agg::LineJoin::Round,
                  agg::LineJoin::Bevel
    ];
    for (i,join) in joins.iter().enumerate() {
        let dx = 100.0 * i as f64;
        let mut path = agg::PathStorage::new();
        path.move_to(10.0 + dx, 70.0);
        path.line_to(50.0 + dx, 30.0);
        path.line_to(90.0 + dx, 70.0);

        let mut stroke = agg::ConvStroke::new(path);
        stroke.width(25.0);
        stroke.line_join( *join );

        let mut ras = agg::RasterizerScanline::new();
        ras.add_path(&stroke);

        let mut ren = agg::RenderingScanlineAASolid::with_base(&mut ren_base);
        agg::render_scanlines(&mut ras, &mut ren);
    }
    let mut ras = agg::RasterizerScanline::new();
    let mut ren = agg::RenderingScanlineAASolid::with_base(&mut ren_base);
    text(&mut ras, &mut ren,  29.0, 90.0, "Miter");
    text(&mut ras, &mut ren, 125.0, 90.0, "Round");
    text(&mut ras, &mut ren, 225.0, 90.0, "Bevel");

    agg::ppm::write_ppm(&ren_base.pixeldata(), 300,100,
                        "line_join.ppm").unwrap();

}


fn text<T>(ras: &mut agg::RasterizerScanline,
           ren: &mut agg::RenderingScanlineAASolid<T>,
           x: f64, y: f64, txt: &str)
    where T: PixelDraw
{
    let mut t = agg::GsvText::new();
    t.size(12.0, 0.0);
    t.text(txt);
    t.start_point(x,y);
    t.flip(true);
    let mut stroke = agg::ConvStroke::new(t);
    stroke.width(1.0);
    ras.add_path(&stroke);
    ren.color(&agg::Rgba8::new(0,0,0,255));
    agg::render_scanlines(ras, ren);

}