Kestrel-3 emulator mockup GUI (output only; no event handling).

mockup.rs

extern crate sdl2;
extern crate gemini;


use gemini::{vdi, font};
use std::string;


static SDCARD_IOR : [u16; 16] = [
    0b0000000000000000,
    0b0000000000000000,
    0b0011111111111100,
    0b0011111111111100,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111110,
    0b0011111111111100,
    0b0000111111111000,
    0b0000000000000000
];

static SDCARD_XOR : [u16; 16] = [
    0b0000000000000000,
    0b0000000000000000,
    0b0011111111111100,
    0b0010000000000100,
    0b0010000000000110,
    0b0010000000000110,
    0b0010000000000110,
    0b0010000000000110,
    0b0010000000000110,
    0b0010000000010110,
    0b0010101010110110,
    0b0010101010100110,
    0b0010000000001110,
    0b0011111111111100,
    0b0000111111111000,
    0b0000000000000000
];


static INSERTED_SDCARD_XOR : [u16; 16] = [
    0b0000000000000000,
    0b0000000000000000,
    0b0000000000000000,
    0b0001111111111000,
    0b0001111111111000,
    0b0001111111111000,
    0b0001111111111000,
    0b0001111111111000,
    0b0001111111111000,
    0b0001111111101000,
    0b0001010101001000,
    0b0001010101011000,
    0b0001111111110000,
    0b0000000000000000,
    0b0000000000000000,
    0b0000000000000000
];



static DESKTOP : [u16; 16] = [
    0xAAAA, 0x5555, 0xAAAA, 0x5555,
    0xAAAA, 0x5555, 0xAAAA, 0x5555,
    0xAAAA, 0x5555, 0xAAAA, 0x5555,
    0xAAAA, 0x5555, 0xAAAA, 0x5555,
];


static BLACK : [u16; 16] = [
    0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000,
    0x0000, 0x0000, 0x0000, 0x0000,
];


static WHITE : [u16; 16] = [
    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
    0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
];


#[test]
fn mockup() {
    let sdl = sdl2::init().unwrap();
    let vdi : &mut vdi::VDI =
        &mut vdi::SDL2Vdi::new(&sdl, 640, 500, "Mockup of e 0.1.0").unwrap();
    
    // Draw the tool/status bar.  Start with the background.
    vdi.rect((0, 0), (640, 20), &DESKTOP);
    vdi.rect((0, 20), (640, 500), &BLACK);

    // Draw SD Card 0 (in this case, no SD card inserted)
    vdi.copy_rect_big_endian(
        (0, 0), 16, &SDCARD_IOR,
        (4, 2),
        (16, 16),
        0b1110,
    );
    vdi.copy_rect_big_endian(
        (0, 0), 16, &SDCARD_XOR,
        (4, 2),
        (16, 16),
        0b0110,
    );

    // Draw SD card 1 (SD card inserted)
    vdi.copy_rect_big_endian(
        (0, 0), 16, &SDCARD_IOR,
        (24, 2),
        (16, 16),
        0b1110,
    );
    vdi.copy_rect_big_endian(
        (0, 0), 16, &INSERTED_SDCARD_XOR,
        (24, 2),
        (16, 16),
        0b0110,
    );

    // Draw status summary
    vdi.rect((46, 4), (50 + 26*8, 16), &WHITE);
    vdi.frame((46, 4), (50 + 26*8, 16), 0x0000);

    {
        let mut t : font::TextContext = font::TextContext {
            vdi:  vdi,
            font: &font::borrow_system_font(),

            left:           48,
            baseline:       13,

            strike_fn:      0b0101,   // Black on white text

            left_margin:    0,
            top_margin:     0,
            right_margin:   640,
            bottom_margin:  24,
        };

        let STR = string::String::from(" FPS: 12.345  MIPS: 3.456 ");
        put_string(&mut t, &STR);
    }

    // Show everything to the world.
    vdi.commit().unwrap();
    {
        // Pose, so I can take a screenshot.
        use std::{thread,time};
        thread::sleep(time::Duration::new(60,0));
    }
}

fn put_string(t: &mut font::TextContext, s: &string::String) {
    for ch in s.chars() {
        t.simple_put_char(ch as u8);
    }
}

This code produces this screen shot.