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#![allow(deprecated)]
use std::{ptr, ops::BitOr};
use crate::{
SCREEN, NCurseswError,
gen::{
ColorsType, ColorPairType, ColorPairGeneric,
ColorPairColors, AttributesType
},
ncursescolortype::{set_ncurses_colortype, NCursesColorType},
shims::ncurses::{attr_t, short_t},
normal::{Attribute, Attributes, Colors, Color},
ncurses::{
COLOR_PAIR, PAIR_NUMBER,
init_pair, pair_content, init_pair_sp, pair_content_sp
}
};
#[derive(Copy, Clone, Debug, Default, PartialEq, Eq, Hash)]
pub struct ColorPair {
screen: Option<SCREEN>,
number: short_t
}
impl ColorPair {
pub(in crate) fn _from(screen: Option<SCREEN>, number: short_t) -> Self {
assert!(screen.map_or_else(|| true, |screen| !screen.is_null()), "ColorPair::_from() : screen.is_null()");
set_ncurses_colortype(NCursesColorType::Normal);
Self { screen, number }
}
}
impl ColorPair {
pub fn new(pair: short_t, colors: Colors) -> result!(Self) {
assert!(colors.screen().is_none(), "ColorPair::new() : colors.screen().is_some()");
init_pair(pair, colors)
}
pub fn new_sp(screen: SCREEN, pair: short_t, colors: Colors) -> result!(Self) {
assert!(colors.screen().map_or_else(|| false, |colors_screen| ptr::eq(screen, colors_screen)), "ColorPair::new_sp() : screen.is_null() || screen != colors.screen()");
init_pair_sp(screen, pair, colors)
}
pub unsafe fn set_screen(&mut self, screen: Option<SCREEN>) {
self.screen = screen
}
pub(in crate) fn as_attr_t(&self) -> attr_t {
COLOR_PAIR(i32::from(self.number))
}
}
impl ColorPairColors<Colors, Color, short_t> for ColorPair {
fn colors(&self) -> result!(Colors) {
match self.screen {
None => pair_content(self.number),
Some(screen) => pair_content_sp(screen, self.number)
}
}
}
impl ColorPairType<short_t> for ColorPair {
fn screen(&self) -> Option<SCREEN> {
self.screen
}
fn number(&self) -> short_t {
self.number
}
}
impl ColorPairGeneric<short_t> for ColorPair {
fn as_short_t(&self) -> short_t {
self.number
}
}
impl BitOr<Attribute> for ColorPair {
type Output = Attributes;
fn bitor(self, rhs: Attribute) -> Self::Output {
Attributes::_from(self.screen, (Attributes::default() | self | rhs).as_attr_t())
}
}
impl From<Attributes> for ColorPair {
fn from(attrs: Attributes) -> Self {
Self::_from(attrs.screen(), PAIR_NUMBER(attrs.as_attr_t()))
}
}
impl AsRef<ColorPair> for ColorPair {
fn as_ref(&self) -> &Self {
self
}
}
impl AsMut<ColorPair> for ColorPair {
fn as_mut(&mut self) -> &mut Self {
self
}
}