barg 0.2.0

A GUI toolkit & 3D graphics renderer.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

use barg::{FontGroup, Image, Size};

use png::HasParameters;
use std::fs::File;
use std::io;

/// Write the raster to a PNG (portable network graphics) file.
pub fn write_png(
    width: u32,
    height: u32,
    pixels: &[u8],
    filename: &str,
) -> io::Result<()> {
    let fl = File::create(filename)?;
    let ref mut bw = io::BufWriter::new(fl);
    let mut enc = png::Encoder::new(bw, width, height);
    enc.set(png::ColorType::RGBA).set(png::BitDepth::Eight);
    let mut writer = enc.write_header()?;
    writer.write_image_data(&pixels[..])?;
    Ok(())
}

fn main() {
    let font = FontGroup::default();

    // Initialize variables need to write to PNG
    let w = 256 * 10;
    let h = 256;
    let mut buffer = vec![0; w * h * 4];
    let mut surface = Image::new(Size(w as u16, h as u16));

    surface.text(
        [0, 0, 0, 255],
        (0.0, 0.0, 256.0),
        &font,
        "Splat And… ‽é¿?üæ",
        &mut buffer,
    );

    // Save the image to a PNG file.
    write_png(w as u32, h as u32, buffer.as_slice(), "image_example.png")
        .unwrap();
}