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use std::iter::FromIterator;
use super::{Color, ColorStyle, ColorType, Effect, PaletteColor};
use enumset::{enum_set, EnumSet};
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub struct Style {
pub effects: EnumSet<Effect>,
pub color: ColorStyle,
}
impl Default for Style {
fn default() -> Self {
Self::none()
}
}
impl Style {
pub fn none() -> Self {
Style {
effects: EnumSet::new(),
color: ColorStyle::inherit_parent(),
}
}
pub fn merge(styles: &[Style]) -> Self {
styles.iter().collect()
}
pub fn combine<S>(self, other: S) -> Self
where
S: Into<Style>,
{
Self::merge(&[self, other.into()])
}
}
impl From<Effect> for Style {
fn from(effect: Effect) -> Self {
Style {
effects: enum_set!(effect),
color: ColorStyle::inherit_parent(),
}
}
}
impl From<ColorStyle> for Style {
fn from(color: ColorStyle) -> Self {
Style {
effects: EnumSet::new(),
color,
}
}
}
impl From<Color> for Style {
fn from(color: Color) -> Self {
ColorStyle::from(color).into()
}
}
impl From<PaletteColor> for Style {
fn from(color: PaletteColor) -> Self {
ColorStyle::from(color).into()
}
}
impl From<ColorType> for Style {
fn from(color: ColorType) -> Self {
ColorStyle::from(color).into()
}
}
impl<'a> FromIterator<&'a Style> for Style {
fn from_iter<I: IntoIterator<Item = &'a Style>>(iter: I) -> Style {
let mut color = ColorStyle::inherit_parent();
let mut effects = EnumSet::new();
for style in iter {
color = ColorStyle::merge(color, style.color);
effects.insert_all(style.effects);
}
Style { color, effects }
}
}
impl<T: Into<Style>> FromIterator<T> for Style {
fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Style {
iter.into_iter().map(Into::into).collect()
}
}