mergui 0.0.5

A simple GUI system for use with the quicksilver game engine
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

use crate::{
    channels::clickable::{BasicClickable as Clickable, ClickSetter as Channel},
    widgets::{Widget, WidgetConfig},
    Assets,
};

use quicksilver::prelude::{Blended, Color, Img, Rectangle, Transform, Vector, Window};

///Similar to the Image widget, except it notifies back when the user clicked on it.
pub struct ImageButtonConfig {
    pub image: String,
    pub color: Option<Color>,
    pub hover_color: Option<Color>,
    pub location: Rectangle,
}

pub struct ImageButton {
    pub button: ImageButtonConfig,
    pub channel: Channel,
    pub is_hovering: bool,
}

impl WidgetConfig<Clickable, ImageButton> for ImageButtonConfig {
    fn to_widget(self) -> (ImageButton, Clickable) {
        let (res, channel) = Clickable::new();
        (
            ImageButton {
                button: self,
                channel,
                is_hovering: false,
            },
            res,
        )
    }
}

impl Widget for ImageButton {
    fn contains(&self, point: &Vector) -> bool {
        point.x >= self.button.location.pos.x
            && point.y >= self.button.location.pos.y
            && point.x <= self.button.location.pos.x + self.button.location.size.x
            && point.y <= self.button.location.pos.y + self.button.location.size.y
    }
    fn is_focusable(&self, _: &Vector) -> bool {
        false
    }
    fn render(&self, assets: &dyn Assets, window: &mut Window, z: u32) {
        let image = assets.get_image(&self.button.image);
        let res = match (self.button.color, self.button.hover_color, self.is_hovering) {
            (Some(color), _, false) | (Some(color), None, true) => Blended(image, color),
            (_, Some(color2), true) => Blended(image, color2),
            (None, None, _) | (None, Some(_), false) => Img(image),
        };
        window.draw_ex(&self.button.location, res, Transform::IDENTITY, z);
    }
    fn on_click(&mut self, _location: &Vector) {
        self.channel.clicked();
    }
    fn get_cursor_on_hover(&self, _: &Vector) -> quicksilver::input::MouseCursor {
        quicksilver::input::MouseCursor::Hand
    }
}