slint/sixtyfps_compiler/typeregister.rs
2020-05-25 15:43:19 +02:00

130 lines
4.4 KiB
Rust

use std::collections::HashMap;
use std::rc::Rc;
#[derive(Debug, Clone)]
#[allow(dead_code)]
pub enum Type {
Invalid,
Component(Rc<crate::object_tree::Component>),
Builtin(Rc<BuiltinElement>),
Signal,
// other property type:
Float32,
Int32,
String,
Color,
Image,
Bool,
}
impl Type {
pub fn is_object_type(&self) -> bool {
matches!(self, Self::Component(_) | Self::Builtin(_))
}
/// valid type for properties
pub fn is_property_type(&self) -> bool {
matches!(
self,
Self::Float32 | Self::Int32 | Self::String | Self::Color | Self::Image | Self::Bool
)
}
pub fn lookup_property(&self, name: &str) -> Type {
match self {
Type::Component(c) => {
if c.root_element.borrow().signals_declaration.iter().any(|x| x == name) {
Type::Signal
} else {
c.root_element.borrow().base_type.lookup_property(name)
}
}
Type::Builtin(b) => b.properties.get(name).cloned().unwrap_or_default(),
_ => Type::Invalid,
}
}
}
impl Default for Type {
fn default() -> Self {
Self::Invalid
}
}
#[derive(Debug, Default)]
pub struct BuiltinElement {
pub properties: HashMap<String, Type>,
}
#[derive(Debug, Default)]
pub struct TypeRegister {
/// The set of types.
/// FIXME: could also be a component
types: HashMap<String, Type>,
}
impl TypeRegister {
pub fn builtin() -> Self {
let mut r = TypeRegister::default();
r.types.insert("float32".into(), Type::Float32);
r.types.insert("int32".into(), Type::Int32);
r.types.insert("string".into(), Type::String);
r.types.insert("color".into(), Type::Color);
r.types.insert("image".into(), Type::Image);
r.types.insert("bool".into(), Type::Bool);
let mut rectangle = BuiltinElement::default();
rectangle.properties.insert("color".to_owned(), Type::Color);
rectangle.properties.insert("x".to_owned(), Type::Float32);
rectangle.properties.insert("y".to_owned(), Type::Float32);
rectangle.properties.insert("width".to_owned(), Type::Float32);
rectangle.properties.insert("height".to_owned(), Type::Float32);
r.types.insert("Rectangle".to_owned(), Type::Builtin(Rc::new(rectangle)));
let mut image = BuiltinElement::default();
image.properties.insert("source".to_owned(), Type::Image);
image.properties.insert("x".to_owned(), Type::Float32);
image.properties.insert("y".to_owned(), Type::Float32);
image.properties.insert("width".to_owned(), Type::Float32);
image.properties.insert("height".to_owned(), Type::Float32);
r.types.insert("Image".to_owned(), Type::Builtin(Rc::new(image)));
let mut text = BuiltinElement::default();
text.properties.insert("text".to_owned(), Type::String);
text.properties.insert("font_family".to_owned(), Type::String);
text.properties.insert("font_pixel_size".to_owned(), Type::Float32);
text.properties.insert("color".to_owned(), Type::Color);
text.properties.insert("x".to_owned(), Type::Float32);
text.properties.insert("y".to_owned(), Type::Float32);
r.types.insert("Text".to_owned(), Type::Builtin(Rc::new(text)));
let mut touch_area = BuiltinElement::default();
touch_area.properties.insert("x".to_owned(), Type::Float32);
touch_area.properties.insert("y".to_owned(), Type::Float32);
touch_area.properties.insert("width".to_owned(), Type::Float32);
touch_area.properties.insert("height".to_owned(), Type::Float32);
touch_area.properties.insert("pressed".to_owned(), Type::Bool);
touch_area.properties.insert("clicked".to_owned(), Type::Signal);
r.types.insert("TouchArea".to_owned(), Type::Builtin(Rc::new(touch_area)));
r
}
pub fn lookup(&self, name: &str) -> Type {
self.types.get(name).cloned().unwrap_or_default()
}
pub fn lookup_qualified<Member: AsRef<str>>(&self, qualified: &[Member]) -> Type {
if qualified.len() != 1 {
return Type::Invalid;
}
self.lookup(qualified[0].as_ref())
}
pub fn add(&mut self, comp: Rc<crate::object_tree::Component>) {
self.types.insert(comp.id.clone(), Type::Component(comp));
}
}