Function fltk::app::background

source · 
pub fn background(r: u8, g: u8, b: u8)
Expand description

Set the background color

Examples found in repository?
examples/tabs.rs (line 43)
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fn main() {
    let app = app::App::default().with_scheme(app::Scheme::Gtk);
    app::background(221, 221, 221);

    let mut wind = Window::default()
        .with_size(500, 450)
        .with_label("Tabs")
        .center_screen();

    draw_gallery();

    wind.make_resizable(true);
    wind.end();
    wind.show();

    app.run().unwrap();
}
More examples
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examples/custom_dial.rs (line 66)
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fn main() {
    let app = app::App::default();
    app::background(255, 255, 255);
    let mut win = window::Window::default().with_size(400, 300);
    let mut dial = MyDial::new(100, 100, 200, 200, "CPU Load %");
    dial.set_label_size(22);
    dial.set_label_color(Color::from_u32(0x797979));
    win.end();
    win.show();

    // get the cpu load value from somewhere, then call dial.set_value() in a callback or event loop
    dial.set_value(10);

    app.run().unwrap();
}
examples/rounded_images.rs (line 48)
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fn main() {
    let app = app::App::default().with_scheme(app::Scheme::Gleam);
    app::background(0, 0, 0);
    let image = image::SharedImage::load("screenshots/calc2.jpg")
        .unwrap()
        .to_rgb()
        .unwrap();

    let mut wind = window::Window::new(100, 100, 800, 400, "Hello from rust");
    let row = group::Flex::default()
        .row()
        .with_size(800, 200)
        .center_of_parent();
    for i in 1..=4 {
        let color_depth = enums::ColorDepth::from_u8(i).unwrap();
        let image = image.convert(color_depth).unwrap();
        RoundImageBox::new(100, image);
    }
    row.end();
    wind.end();
    wind.show();

    app.run().unwrap();
}
examples/defaults.rs (line 9)
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fn main() {
    let (r, g, b) = utils::hex2rgb(0xfafdf3);

    let app = app::App::default();

    // global theming
    app::background(r, g, b); // background color. For input/output and text widgets, use app::background2
    app::foreground(20, 20, 20); // labels
    app::set_font(enums::Font::Courier);
    app::set_font_size(16);
    app::set_frame_type(enums::FrameType::RFlatBox);
    app::set_visible_focus(false);

    // regular widget code
    let mut win = window::Window::default().with_size(400, 300);
    let frame = frame::Frame::new(0, 0, 400, 200, "Defaults");
    let flex = group::Flex::default()
        .with_size(400, 50)
        .below_of(&frame, 50);
    let mut but1 = button::Button::default().with_label("Button1");
    but1.set_color(enums::Color::Yellow);
    but1.set_down_frame(enums::FrameType::RFlatBox);
    frame::Frame::default();
    let mut but2 = button::Button::default().with_label("Button2");
    but2.set_color(enums::Color::Yellow);
    but2.set_down_frame(enums::FrameType::RFlatBox);
    flex.end();

    win.end();
    win.show();

    app.run().unwrap();
}
examples/counter.rs (line 14)
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fn main() {
    let app = app::App::default().with_scheme(app::Scheme::Gtk);
    app::background(0x62, 0x00, 0xee);
    app::set_visible_focus(false);

    let count = Rc::new(RefCell::new(0));

    let mut wind = Window::default().with_size(160, 200).with_label("Counter");
    let mut flex = Flex::default_fill().column();
    flex.set_margins(30, 40, 30, 40);
    flex.set_pad(10);
    let mut but_inc = Button::default().with_label("+");
    let mut frame = Frame::default().with_label(&count.borrow().to_string());
    let mut but_dec = Button::default().with_label("-");
    flex.end();
    // wind.make_resizable(true);
    wind.end();
    wind.show();

    but_inc.set_callback({
        let count = count.clone();
        let mut frame = frame.clone();
        move |_| {
            *count.borrow_mut() += 1;
            frame.set_label(&count.borrow().to_string());
        }
    });

    but_dec.set_callback(move |_| {
        *count.borrow_mut() -= 1;
        frame.set_label(&count.borrow().to_string());
    });

    // Theming
    wind.set_color(Color::White);
    but_inc.set_color(Color::from_u32(0x304FFE));
    but_inc.set_selection_color(Color::Green);
    but_inc.set_label_size(20);
    but_inc.set_frame(FrameType::FlatBox);
    but_inc.set_label_color(Color::White);
    but_dec.set_color(Color::from_u32(0x2962FF));
    but_dec.set_selection_color(Color::Red);
    but_dec.set_frame(FrameType::FlatBox);
    but_dec.set_label_size(20);
    but_dec.set_label_color(Color::White);
    // End theming

    app.run().unwrap();
}
examples/popup_browser.rs (line 7)
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fn main() {
    let app = app::App::default().with_scheme(app::Scheme::Gtk);
    app::background(211, 211, 211);

    let mut win = window::Window::default().with_size(900, 300);
    let mut b = browser::HoldBrowser::default()
        .with_size(900 - 10, 300 - 10)
        .center_of(&win);
    let widths = &[50, 50, 50, 70, 70, 40, 40, 70, 70, 50];

    b.set_column_widths(widths);
    b.set_column_char('\t');
    b.add("USER\tPID\t%CPU\t%MEM\tVSZ\tRSS\tTTY\tSTAT\tSTART\tTIME\tCOMMAND");
    b.add("root\t2888\t0.0\t0.0\t1352\t0\ttty3\tSW\tAug15\t0:00\t@b@f/sbin/mingetty tty3");
    b.add("erco\t2889\t0.0\t13.0\t221352\t0\ttty3\tR\tAug15\t1:34\t@b@f/usr/local/bin/render a35 0004");
    b.add("uucp\t2892\t0.0\t0.0\t1352\t0\tttyS0\tSW\tAug15\t0:00\t@b@f/sbin/agetty -h 19200 ttyS0 vt100");
    b.add("root\t13115\t0.0\t0.0\t1352\t0\ttty2\tSW\tAug30\t0:00\t@b@f/sbin/mingetty tty2");
    b.add(
        "root\t13464\t0.0\t0.0\t1352\t0\ttty1\tSW\tAug30\t0:00\t@b@f/sbin/mingetty tty1 --noclear",
    );

    let menu = menu::MenuItem::new(&["1st menu item\t", "2nd menu item\t", "3rd menu item\t"]);

    b.set_callback(move |_| {
        if app::event_mouse_button() == app::MouseButton::Right {
            // or app::event_button() == 3
            let coords = app::event_coords();
            match menu.popup(coords.0, coords.1) {
                None => println!("No value was chosen!"),
                Some(val) => println!("{}", val.label().unwrap()),
            }
        }
    });

    win.make_resizable(true);
    win.end();
    win.show();
    app.run().unwrap();
}
Additional examples can be found in: