si_img/
macros.rs

1#[macro_export]
2macro_rules! preset {
3    ($name:ident ($img:ident, $($key:ident : $type:ty),*) {$( $body:stmt );* $(;)?}) => {
4            let $name = SiPreset::new(Box::new(|img, vals: HashMap<String, Box<dyn std::any::Any>>| {
5                $(
6                    let $key = match vals.get(stringify!($key)) {
7                        Some($key) => {
8                            // Do type checking
9                            if $key.type_id() == std::any::TypeId::of::<$type>() {
10                                // Downcast it
11                                $key.downcast_ref::<$type>().unwrap()
12                            } else {
13                                panic!("Expected type: {:?}\nFound type: {:?}", std::any::TypeId::of::<$type>(), $key.type_id());
14                            }
15                        }
16                        None => panic!("No {} provided", stringify!($key))
17                    };
18                )*;
19                let $img = img.clone();
20                $($body)*
21            }
22            ));
23    }
24}
25
26#[macro_export]
27macro_rules! anymap {
28    {$($key:ident : $val:expr),*} => {
29        {
30            let mut map = HashMap::new();
31            $(
32                map.insert(stringify!($key).to_string(), Box::new($val) as Box<dyn std::any::Any>);
33            )*
34            map
35        }
36    };
37}
38
39#[macro_export]
40macro_rules! render {
41    ($image:ident: $text:expr; $x:expr, $y:expr; "font" $font:expr, "scale" $scale:expr, "opts" $opts:expr, "color" $color:expr) => {
42        $image = $image.render_text($text, $scale, $x, $y, $color, $font, $opts);
43    };
44}
si_img/macros.rs

si_img/
macros.rs
