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Use new Attributes and ColorPairs

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Pancurses now has an Attribute and ColorPair type, making for a more strongly typed way of handling them when compared to using chtypes.
Also window now has an .attrget() function so pan::Concrete does not need to track the current color any longer.
This commit is contained in:
Ilkka Halila 2017-03-05 13:50:42 +02:00
parent f6f26bf7af
commit ea053640fe
1 changed files with 7 additions and 20 deletions
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27
src/backend/curses/pan.rs
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@ -5,13 +5,11 @@ use backend;
use event::{Event, Key}; use event::{Event, Key};
use self::super::find_closest; use self::super::find_closest;
use std::cell::Cell;
use theme::{Color, ColorStyle, Effect}; use theme::{Color, ColorStyle, Effect};
use utf8; use utf8;
pub struct Concrete { pub struct Concrete {
window: pancurses::Window, window: pancurses::Window,
current_style: Cell<ColorStyle>,
} }
impl backend::Backend for Concrete { impl backend::Backend for Concrete {
@ -23,11 +21,10 @@ impl backend::Backend for Concrete {
pancurses::cbreak(); pancurses::cbreak();
pancurses::start_color(); pancurses::start_color();
pancurses::curs_set(0); pancurses::curs_set(0);
window.bkgd(pancurses::COLOR_PAIR(ColorStyle::Background.id() as pancurses::chtype)); window.bkgd(pancurses::ColorPair(ColorStyle::Background.id() as u8));
Concrete { Concrete {
window: window, window: window,
current_style: Cell::new(ColorStyle::Background),
} }
} }
@ -52,28 +49,18 @@ impl backend::Backend for Concrete {
} }
fn with_color<F: FnOnce()>(&self, color: ColorStyle, f: F) { fn with_color<F: FnOnce()>(&self, color: ColorStyle, f: F) {
// TODO: pancurses doesn't have an `attr_get` equivalent let (_, current_color_pair) = self.window.attrget();
// let mut current_style: pancurses::attr_t = 0; let color_attribute = pancurses::ColorPair(color.id() as u8);
// let mut current_color: i16 = 0;
// pancurses::attr_get(&mut current_style, &mut current_color);
let current_style = self.current_style.get();
let style = pancurses::COLOR_PAIR(color.id() as pancurses::chtype); self.window.attron(color_attribute);
self.window.attron(style);
self.current_style.set(color);
f(); f();
self.current_style.set(current_style); self.window.attron(pancurses::ColorPair(current_color_pair as u8));
// self.window.attroff(style);
self.window.attron(pancurses::COLOR_PAIR(current_style.id() as pancurses::chtype));
} }
fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) { fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
let style = match effect { let style = match effect {
// A_REVERSE, taken from ncurses Effect::Reverse => pancurses::Attribute::Reverse,
Effect::Reverse => 1 << (10 + 8u32), Effect::Simple => pancurses::Attribute::Normal,
Effect::Simple => pancurses::A_NORMAL,
}; };
self.window.attron(style); self.window.attron(style);
f(); f();