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Merge branch 'custom_color'

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This commit is contained in:
Alexandre Bury 2017-06-14 00:44:57 -07:00
commit dad0016759
13 changed files with 466 additions and 290 deletions
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45
examples/colors.rs Normal file
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@ -0,0 +1,45 @@
extern crate cursive;
use cursive::{Cursive, Printer};
use cursive::theme::{ColorStyle, Color};
use cursive::view::Boxable;
use cursive::views::Canvas;
fn main() {
let mut siv = Cursive::new();
siv.add_layer(Canvas::new(()).with_draw(draw).fixed_size((20, 10)));
siv.add_global_callback('q', |s| s.quit());
siv.run();
}
fn front_color(x: u8, y: u8, x_max: u8, y_max: u8) -> Color {
Color::Rgb(x * (255 / x_max),
y * (255 / y_max),
(x + 2 * y) * (255 / (x_max + 2 * y_max)))
}
fn back_color(x: u8, y: u8, x_max: u8, y_max: u8) -> Color {
Color::Rgb(128 + (2 * y_max + x - 2 * y) * (128 / (x_max + 2 * y_max)),
255 - y * (255 / y_max),
255 - x * (255 / x_max))
}
fn draw(p: &Printer, _: &()) {
let x_max = p.size.x as u8;
let y_max = p.size.y as u8;
for x in 0..x_max {
for y in 0..y_max {
let style = ColorStyle::Custom {
front: front_color(x, y, x_max, y_max),
back: back_color(x, y, x_max, y_max),
};
p.with_color(style, |printer| { printer.print((x, y), "+"); });
}
}
}

35
examples/theme_manual.rs
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@ -1,26 +1,33 @@
extern crate cursive;
use cursive::Cursive;
use cursive::views::Dialog;
use cursive::theme::BorderStyle;
use cursive::theme::{ColorStyle, BaseColor, Color, BorderStyle};
use cursive::views::{EditView, LinearLayout, Dialog, TextView};
fn main() {
let mut siv = Cursive::new();
siv.add_layer(Dialog::text("This is a dynamic theme example!")
.button("Change", |s| {
let mut theme = s.current_theme().clone();
let layout = LinearLayout::vertical()
.child(TextView::new("This is a dynamic theme example!"))
.child(EditView::new().content("Woo! colors!").style(ColorStyle::Custom {
front: Color::Rgb(200, 150, 150),
back: Color::Dark(BaseColor::Blue),
}));
theme.shadow = !theme.shadow;
theme.borders = match theme.borders {
Some(BorderStyle::Simple) => Some(BorderStyle::Outset),
Some(BorderStyle::Outset) => None,
None => Some(BorderStyle::Simple),
};
siv.add_layer(Dialog::around(layout)
.button("Change", |s| {
let mut theme = s.current_theme().clone();
s.set_theme(theme);
})
.button("Quit", Cursive::quit));
theme.shadow = !theme.shadow;
theme.borders = match theme.borders {
BorderStyle::Simple => BorderStyle::Outset,
BorderStyle::Outset => BorderStyle::None,
BorderStyle::None => BorderStyle::Simple,
};
s.set_theme(theme);
})
.button("Quit", Cursive::quit));
siv.run();
}

45
src/backend/blt.rs
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@ -6,7 +6,7 @@ use self::bear_lib_terminal::terminal::{self, Event as BltEvent, KeyCode};
use backend;
use event::{Event, Key};
use std::collections::BTreeMap;
use theme::{BaseColor, Color, ColorStyle, Effect};
use theme::{BaseColor, Color, ColorPair, Effect};
pub struct Concrete {
colours: BTreeMap<i16, (BltColor, BltColor)>,
@ -24,15 +24,9 @@ impl backend::Backend for Concrete {
terminal::close();
}
fn init_color_style(&mut self, style: ColorStyle, foreground: &Color,
background: &Color) {
self.colours.insert(style.id(),
(colour_to_blt_colour(foreground),
colour_to_blt_colour(background)));
}
fn with_color<F: FnOnce()>(&self, color: ColorStyle, f: F) {
let (fg, bg) = self.colours[&color.id()];
fn with_color<F: FnOnce()>(&self, color: ColorPair, f: F) {
let fg = colour_to_blt_colour(color.front);
let bg = colour_to_blt_colour(color.back);
terminal::with_colors(fg, bg, f);
}
@ -60,7 +54,8 @@ impl backend::Backend for Concrete {
(width as usize, height as usize)
}
fn clear(&self) {
fn clear(&self, color: Color) {
terminal::set_background(colour_to_blt_colour(color));
terminal::clear(None);
}
@ -103,8 +98,8 @@ impl backend::Backend for Concrete {
}
}
fn colour_to_blt_colour(clr: &Color) -> BltColor {
let (r, g, b) = match *clr {
fn colour_to_blt_colour(clr: Color) -> BltColor {
let (r, g, b) = match clr {
// Colours taken from
// https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
Color::Dark(BaseColor::Black) => (0, 0, 0),
@ -140,11 +135,11 @@ fn blt_keycode_to_ev(kc: KeyCode, shift: bool, ctrl: bool) -> Event {
KeyCode::F1 | KeyCode::F2 | KeyCode::F3 | KeyCode::F4 |
KeyCode::F5 | KeyCode::F6 | KeyCode::F7 | KeyCode::F8 |
KeyCode::F9 | KeyCode::F10 | KeyCode::F11 | KeyCode::F12 |
KeyCode::Enter | KeyCode::Escape | KeyCode::Backspace |
KeyCode::Tab | KeyCode::Pause | KeyCode::Insert | KeyCode::Home |
KeyCode::PageUp | KeyCode::Delete | KeyCode::End |
KeyCode::PageDown | KeyCode::Right | KeyCode::Left |
KeyCode::Down | KeyCode::Up => {
KeyCode::NumEnter | KeyCode::Enter | KeyCode::Escape |
KeyCode::Backspace | KeyCode::Tab | KeyCode::Pause |
KeyCode::Insert | KeyCode::Home | KeyCode::PageUp |
KeyCode::Delete | KeyCode::End | KeyCode::PageDown |
KeyCode::Right | KeyCode::Left | KeyCode::Down | KeyCode::Up => {
match (shift, ctrl) {
(true, true) => Event::CtrlShift(blt_keycode_to_key(kc)),
(true, false) => Event::Shift(blt_keycode_to_key(kc)),
@ -168,10 +163,9 @@ fn blt_keycode_to_ev(kc: KeyCode, shift: bool, ctrl: bool) -> Event {
KeyCode::Apostrophe | KeyCode::Comma | KeyCode::Period |
KeyCode::Slash | KeyCode::Space | KeyCode::NumDivide |
KeyCode::NumMultiply | KeyCode::NumMinus | KeyCode::NumPlus |
KeyCode::NumEnter | KeyCode::NumPeriod | KeyCode::Num1 |
KeyCode::Num2 | KeyCode::Num3 | KeyCode::Num4 | KeyCode::Num5 |
KeyCode::Num6 | KeyCode::Num7 | KeyCode::Num8 | KeyCode::Num9 |
KeyCode::Num0 => {
KeyCode::NumPeriod | KeyCode::Num1 | KeyCode::Num2 |
KeyCode::Num3 | KeyCode::Num4 | KeyCode::Num5 | KeyCode::Num6 |
KeyCode::Num7 | KeyCode::Num8 | KeyCode::Num9 | KeyCode::Num0 => {
if ctrl {
Event::CtrlChar(blt_keycode_to_char(kc, shift))
} else {
@ -246,7 +240,10 @@ fn blt_keycode_to_char(kc: KeyCode, shift: bool) -> char {
KeyCode::Num8 => '8',
KeyCode::Num9 => '9',
KeyCode::Num0 => '0',
_ => unreachable!(),
_ => {
println_stderr!("Found unknown input: {:?}", kc);
unreachable!()
}
}
}
@ -264,7 +261,7 @@ fn blt_keycode_to_key(kc: KeyCode) -> Key {
KeyCode::F10 => Key::F10,
KeyCode::F11 => Key::F11,
KeyCode::F12 => Key::F12,
KeyCode::Enter => Key::Enter,
KeyCode::NumEnter | KeyCode::Enter => Key::Enter,
KeyCode::Escape => Key::Esc,
KeyCode::Backspace => Key::Backspace,
KeyCode::Tab => Key::Tab,

6
src/backend/curses/mod.rs
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@ -11,7 +11,7 @@ mod pan;
pub use self::pan::*;
fn find_closest(color: &Color) -> u8 {
fn find_closest(color: &Color) -> i16 {
match *color {
Color::Dark(BaseColor::Black) => 0,
Color::Dark(BaseColor::Red) => 1,
@ -33,8 +33,8 @@ fn find_closest(color: &Color) -> u8 {
let r = 6 * r as u16 / 256;
let g = 6 * g as u16 / 256;
let b = 6 * b as u16 / 256;
(16 + 36 * r + 6 * g + b) as u8
(16 + 36 * r + 6 * g + b) as i16
}
Color::RgbLowRes(r, g, b) => (16 + 36 * r + 6 * g + b) as u8,
Color::RgbLowRes(r, g, b) => (16 + 36 * r + 6 * g + b) as i16,
}
}

99
src/backend/curses/n.rs
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@ -1,13 +1,65 @@
extern crate ncurses;
use self::super::find_closest;
use backend;
use event::{Event, Key};
use theme::{Color, ColorStyle, Effect};
use std::cell::{RefCell, Cell};
use std::collections::HashMap;
use theme::{Color, ColorPair, Effect};
use utf8;
pub struct Concrete;
pub struct Concrete {
current_style: Cell<ColorPair>,
pairs: RefCell<HashMap<ColorPair, i16>>,
}
impl Concrete {
/// Save a new color pair.
fn insert_color(&self, pairs: &mut HashMap<ColorPair, i16>,
pair: ColorPair)
-> i16 {
let n = 1 + pairs.len() as i16;
let target = if ncurses::COLOR_PAIRS() > n as i32 {
// We still have plenty of space for everyone.
n
} else {
// The world is too small for both of us.
let target = n - 1;
// Remove the mapping to n-1
pairs.retain(|_, &mut v| v != target);
target
};
pairs.insert(pair, target);
ncurses::init_pair(target,
find_closest(&pair.front),
find_closest(&pair.back));
target
}
/// Checks the pair in the cache, or re-define a color if needed.
fn get_or_create(&self, pair: ColorPair) -> i16 {
let mut pairs = self.pairs.borrow_mut();
// Find if we have this color in stock
if pairs.contains_key(&pair) {
// We got it!
pairs[&pair]
} else {
self.insert_color(&mut *pairs, pair)
}
}
fn set_colors(&self, pair: ColorPair) {
let i = self.get_or_create(pair);
self.current_style.set(pair);
let style = ncurses::COLOR_PAIR(i);
ncurses::attron(style);
}
}
impl backend::Backend for Concrete {
fn init() -> Self {
@ -22,10 +74,11 @@ impl backend::Backend for Concrete {
ncurses::cbreak();
ncurses::start_color();
ncurses::curs_set(ncurses::CURSOR_VISIBILITY::CURSOR_INVISIBLE);
ncurses::wbkgd(ncurses::stdscr(),
ncurses::COLOR_PAIR(ColorStyle::Background.id()));
Concrete
Concrete {
current_style: Cell::new(ColorPair::from_256colors(0, 0)),
pairs: RefCell::new(HashMap::new()),
}
}
fn screen_size(&self) -> (usize, usize) {
@ -44,25 +97,17 @@ impl backend::Backend for Concrete {
}
fn init_color_style(&mut self, style: ColorStyle, foreground: &Color,
background: &Color) {
// TODO: build the color on the spot
fn with_color<F: FnOnce()>(&self, colors: ColorPair, f: F) {
let current = self.current_style.get();
if current != colors {
self.set_colors(colors);
}
ncurses::init_pair(style.id(),
find_closest(foreground) as i16,
find_closest(background) as i16);
}
fn with_color<F: FnOnce()>(&self, color: ColorStyle, f: F) {
let mut current_style: ncurses::attr_t = 0;
let mut current_color: i16 = 0;
ncurses::attr_get(&mut current_style, &mut current_color);
let style = ncurses::COLOR_PAIR(color.id());
ncurses::attron(style);
f();
// ncurses::attroff(style);
ncurses::attron(current_style);
if current != colors {
self.set_colors(current);
}
}
fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
@ -75,7 +120,13 @@ impl backend::Backend for Concrete {
ncurses::attroff(style);
}
fn clear(&self) {
fn clear(&self, color: Color) {
let id = self.get_or_create(ColorPair {
front: color,
back: color,
});
ncurses::wbkgd(ncurses::stdscr(), ncurses::COLOR_PAIR(id));
ncurses::clear();
}

106
src/backend/curses/pan.rs
View File

@ -1,17 +1,69 @@
extern crate pancurses;
use self::super::find_closest;
use backend;
use event::{Event, Key};
use theme::{Color, ColorStyle, Effect};
use std::cell::{RefCell, Cell};
use std::collections::HashMap;
use theme::{Color, ColorPair, Effect};
use utf8;
pub struct Concrete {
current_style: Cell<ColorPair>,
pairs: RefCell<HashMap<ColorPair, i32>>,
window: pancurses::Window,
}
impl Concrete {
/// Save a new color pair.
fn insert_color(&self, pairs: &mut HashMap<ColorPair, i32>,
pair: ColorPair)
-> i32 {
let n = 1 + pairs.len() as i32;
// TODO: when COLORS_PAIRS is available...
let target = if 16 > n {
// We still have plenty of space for everyone.
n
} else {
// The world is too small for both of us.
let target = n - 1;
// Remove the mapping to n-1
pairs.retain(|_, &mut v| v != target);
target
};
pairs.insert(pair, target);
pancurses::init_pair(target as i16,
find_closest(&pair.front),
find_closest(&pair.back));
target
}
/// Checks the pair in the cache, or re-define a color if needed.
fn get_or_create(&self, pair: ColorPair) -> i32 {
let mut pairs = self.pairs.borrow_mut();
// Find if we have this color in stock
if pairs.contains_key(&pair) {
// We got it!
pairs[&pair]
} else {
self.insert_color(&mut *pairs, pair)
}
}
fn set_colors(&self, pair: ColorPair) {
let i = self.get_or_create(pair);
self.current_style.set(pair);
let style = pancurses::COLOR_PAIR(i as pancurses::chtype);
self.window.attron(style);
}
}
impl backend::Backend for Concrete {
fn init() -> Self {
let window = pancurses::initscr();
@ -21,9 +73,12 @@ impl backend::Backend for Concrete {
pancurses::cbreak();
pancurses::start_color();
pancurses::curs_set(0);
window.bkgd(pancurses::ColorPair(ColorStyle::Background.id() as u8));
Concrete { window: window }
Concrete {
current_style: Cell::new(ColorPair::from_256colors(0, 0)),
pairs: RefCell::new(HashMap::new()),
window: window,
}
}
fn screen_size(&self) -> (usize, usize) {
@ -39,20 +94,18 @@ impl backend::Backend for Concrete {
pancurses::endwin();
}
fn init_color_style(&mut self, style: ColorStyle, foreground: &Color,
background: &Color) {
pancurses::init_pair(style.id(),
find_closest(foreground) as i16,
find_closest(background) as i16);
}
fn with_color<F: FnOnce()>(&self, colors: ColorPair, f: F) {
let current = self.current_style.get();
fn with_color<F: FnOnce()>(&self, color: ColorStyle, f: F) {
let (_, current_color_pair) = self.window.attrget();
let color_attribute = pancurses::ColorPair(color.id() as u8);
if current != colors {
self.set_colors(colors);
}
self.window.attron(color_attribute);
f();
self.window.attron(pancurses::ColorPair(current_color_pair as u8));
if current != colors {
self.set_colors(current);
}
}
fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
@ -65,7 +118,12 @@ impl backend::Backend for Concrete {
self.window.attroff(style);
}
fn clear(&self) {
fn clear(&self, color: Color) {
let id = self.get_or_create(ColorPair {
front: color,
back: color,
});
self.window.bkgd(pancurses::ColorPair(id as u8));
self.window.clear();
}
@ -94,12 +152,14 @@ impl backend::Backend for Concrete {
pancurses::Input::Character(c) if 32 <= (c as u32) &&
(c as u32) <= 255 => {
Event::Char(utf8::read_char(c as u8, || {
self.window.getch().and_then(|i| match i {
pancurses::Input::Character(c) => {
Some(c as u8)
}
_ => None,
})
self.window
.getch()
.and_then(|i| match i {
pancurses::Input::Character(c) => {
Some(c as u8)
}
_ => None,
})
})
.unwrap())
}

20
src/backend/mod.rs
View File

@ -18,23 +18,23 @@ pub use self::termion::*;
pub trait Backend {
fn init() -> Self;
// TODO: take `self` by value?
// Or implement Drop?
fn finish(&mut self);
fn clear(&self);
fn refresh(&mut self);
fn has_colors(&self) -> bool;
fn init_color_style(&mut self, style: theme::ColorStyle,
foreground: &theme::Color, background: &theme::Color);
fn print_at(&self, (usize, usize), &str);
fn poll_event(&self) -> event::Event;
fn set_refresh_rate(&mut self, fps: u32);
fn screen_size(&self) -> (usize, usize);
/// Main input method
fn poll_event(&self) -> event::Event;
/// Main method used for printing
fn print_at(&self, (usize, usize), &str);
fn clear(&self, color: theme::Color);
fn set_refresh_rate(&mut self, fps: u32);
// TODO: unify those into a single method?
fn with_color<F: FnOnce()>(&self, color: theme::ColorStyle, f: F);
fn with_color<F: FnOnce()>(&self, colors: theme::ColorPair, f: F);
fn with_effect<F: FnOnce()>(&self, effect: theme::Effect, f: F);
}

144
src/backend/termion.rs
View File

@ -13,8 +13,6 @@ use backend;
use chan;
use event::{Event, Key};
use std::cell::Cell;
use std::collections::BTreeMap;
use std::fmt;
use std::io::Write;
use std::thread;
@ -22,9 +20,7 @@ use theme;
pub struct Concrete {
terminal: AlternateScreen<termion::raw::RawTerminal<::std::io::Stdout>>,
current_style: Cell<theme::ColorStyle>,
colors: BTreeMap<i16, (Box<tcolor::Color>, Box<tcolor::Color>)>,
current_style: Cell<theme::ColorPair>,
input: chan::Receiver<Event>,
resize: chan::Receiver<chan_signal::Signal>,
timeout: Option<u32>,
@ -35,20 +31,6 @@ trait Effectable {
fn off(&self);
}
struct ColorRef<'a>(&'a tcolor::Color);
impl<'a> tcolor::Color for ColorRef<'a> {
#[inline]
fn write_fg(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.0.write_fg(f)
}
#[inline]
fn write_bg(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.0.write_bg(f)
}
}
impl Effectable for theme::Effect {
fn on(&self) {
match *self {
@ -65,14 +47,10 @@ impl Effectable for theme::Effect {
}
}
fn apply_colors(fg: &tcolor::Color, bg: &tcolor::Color) {
print!("{}{}", tcolor::Fg(ColorRef(fg)), tcolor::Bg(ColorRef(bg)));
}
impl Concrete {
fn apply_colorstyle(&self, color_style: theme::ColorStyle) {
let (ref fg, ref bg) = self.colors[&color_style.id()];
apply_colors(&**fg, &**bg);
fn apply_colors(&self, colors: theme::ColorPair) {
with_color(&colors.front, |c| print!("{}", tcolor::Fg(c)));
with_color(&colors.back, |c| print!("{}", tcolor::Bg(c)));
}
}
@ -82,7 +60,9 @@ impl backend::Backend for Concrete {
let resize = chan_signal::notify(&[chan_signal::Signal::WINCH]);
let terminal = AlternateScreen::from(::std::io::stdout().into_raw_mode().unwrap());
let terminal = AlternateScreen::from(::std::io::stdout()
.into_raw_mode()
.unwrap());
let (sender, receiver) = chan::async();
thread::spawn(move || for key in ::std::io::stdin().events() {
@ -93,8 +73,7 @@ impl backend::Backend for Concrete {
let backend = Concrete {
terminal: terminal,
current_style: Cell::new(theme::ColorStyle::Background),
colors: BTreeMap::new(),
current_style: Cell::new(theme::ColorPair::from_256colors(0, 0)),
input: receiver,
resize: resize,
timeout: None,
@ -111,24 +90,20 @@ impl backend::Backend for Concrete {
termion::clear::All);
}
fn init_color_style(&mut self, style: theme::ColorStyle,
foreground: &theme::Color, background: &theme::Color) {
// Step 1: convert foreground and background into proper termion Color
self.colors.insert(style.id(),
(colour_to_termion_colour(foreground),
colour_to_termion_colour(background)));
}
fn with_color<F: FnOnce()>(&self, color: theme::ColorStyle, f: F) {
fn with_color<F: FnOnce()>(&self, color: theme::ColorPair, f: F) {
let current_style = self.current_style.get();
self.apply_colorstyle(color);
if current_style != color {
self.apply_colors(color);
self.current_style.set(color);
}
self.current_style.set(color);
f();
self.current_style.set(current_style);
self.apply_colorstyle(current_style);
if current_style != color {
self.current_style.set(current_style);
self.apply_colors(current_style);
}
}
fn with_effect<F: FnOnce()>(&self, effect: theme::Effect, f: F) {
@ -147,8 +122,11 @@ impl backend::Backend for Concrete {
(x as usize, y as usize)
}
fn clear(&self) {
self.apply_colorstyle(theme::ColorStyle::Background);
fn clear(&self, color: theme::Color) {
self.apply_colors(theme::ColorPair {
front: color,
back: color,
});
print!("{}", termion::clear::All);
}
@ -214,49 +192,43 @@ fn map_key(event: TEvent) -> Event {
}
fn colour_to_termion_colour(clr: &theme::Color) -> Box<tcolor::Color> {
fn with_color<F, R>(clr: &theme::Color, f: F) -> R
where F: FnOnce(&tcolor::Color) -> R
{
match *clr {
theme::Color::Dark(theme::BaseColor::Black) => Box::new(tcolor::Black),
theme::Color::Dark(theme::BaseColor::Red) => Box::new(tcolor::Red),
theme::Color::Dark(theme::BaseColor::Green) => Box::new(tcolor::Green),
theme::Color::Dark(theme::BaseColor::Yellow) => {
Box::new(tcolor::Yellow)
}
theme::Color::Dark(theme::BaseColor::Blue) => Box::new(tcolor::Blue),
theme::Color::Dark(theme::BaseColor::Magenta) => {
Box::new(tcolor::Magenta)
}
theme::Color::Dark(theme::BaseColor::Cyan) => Box::new(tcolor::Cyan),
theme::Color::Dark(theme::BaseColor::White) => Box::new(tcolor::White),
theme::Color::Dark(theme::BaseColor::Black) => f(&tcolor::Black),
theme::Color::Dark(theme::BaseColor::Red) => f(&tcolor::Red),
theme::Color::Dark(theme::BaseColor::Green) => f(&tcolor::Green),
theme::Color::Dark(theme::BaseColor::Yellow) => f(&tcolor::Yellow),
theme::Color::Dark(theme::BaseColor::Blue) => f(&tcolor::Blue),
theme::Color::Dark(theme::BaseColor::Magenta) => f(&tcolor::Magenta),
theme::Color::Dark(theme::BaseColor::Cyan) => f(&tcolor::Cyan),
theme::Color::Dark(theme::BaseColor::White) => f(&tcolor::White),
theme::Color::Light(theme::BaseColor::Black) => {
Box::new(tcolor::LightBlack)
}
theme::Color::Light(theme::BaseColor::Red) => {
Box::new(tcolor::LightRed)
}
theme::Color::Light(theme::BaseColor::Green) => {
Box::new(tcolor::LightGreen)
}
theme::Color::Light(theme::BaseColor::Yellow) => {
Box::new(tcolor::LightYellow)
}
theme::Color::Light(theme::BaseColor::Blue) => {
Box::new(tcolor::LightBlue)
}
theme::Color::Light(theme::BaseColor::Magenta) => {
Box::new(tcolor::LightMagenta)
}
theme::Color::Light(theme::BaseColor::Cyan) => {
Box::new(tcolor::LightCyan)
}
theme::Color::Light(theme::BaseColor::White) => {
Box::new(tcolor::LightWhite)
}
theme::Color::Light(theme::BaseColor::Black) => {
f(&tcolor::LightBlack)
}
theme::Color::Light(theme::BaseColor::Red) => f(&tcolor::LightRed),
theme::Color::Light(theme::BaseColor::Green) => {
f(&tcolor::LightGreen)
}
theme::Color::Light(theme::BaseColor::Yellow) => {
f(&tcolor::LightYellow)
}
theme::Color::Light(theme::BaseColor::Blue) => f(&tcolor::LightBlue),
theme::Color::Light(theme::BaseColor::Magenta) => {
f(&tcolor::LightMagenta)
}
theme::Color::Light(theme::BaseColor::Cyan) => f(&tcolor::LightCyan),
theme::Color::Light(theme::BaseColor::White) => {
f(&tcolor::LightWhite)
}
theme::Color::Rgb(r, g, b) => Box::new(tcolor::Rgb(r, g, b)),
theme::Color::RgbLowRes(r, g, b) => {
Box::new(tcolor::AnsiValue::rgb(r, g, b))
}
}
theme::Color::Rgb(r, g, b) => f(&tcolor::Rgb(r, g, b)),
theme::Color::RgbLowRes(r, g, b) => {
f(&tcolor::AnsiValue::rgb(r, g, b))
}
}
}

17
src/lib.rs
View File

@ -170,10 +170,10 @@ new_default!(Cursive);
impl Cursive {
/// Creates a new Cursive root, and initialize the back-end.
pub fn new() -> Self {
let mut backend = backend::Concrete::init();
let backend = backend::Concrete::init();
let theme = theme::load_default();
theme.activate(&mut backend);
// theme.activate(&mut backend);
// let theme = theme::load_theme("assets/style.toml").unwrap();
let (tx, rx) = mpsc::channel();
@ -287,15 +287,15 @@ impl Cursive {
/// Sets the current theme.
pub fn set_theme(&mut self, theme: theme::Theme) {
self.theme = theme;
self.theme.activate(&mut self.backend);
self.backend.clear();
// self.theme.activate(&mut self.backend);
self.clear();
}
/// Clears the screen.
///
/// Users rarely have to call this directly.
pub fn clear(&self) {
self.backend.clear();
self.backend.clear(self.theme.colors.background);
}
/// Loads a theme from the given file.
@ -534,9 +534,6 @@ impl Cursive {
}
fn draw(&mut self) {
// TODO: don't clone the theme
// Reference it or something
let sizes = self.screen().layer_sizes();
if self.last_sizes != sizes {
self.clear();
@ -544,7 +541,7 @@ impl Cursive {
}
let printer = Printer::new(self.screen_size(),
self.theme.clone(),
&self.theme,
&self.backend);
// Draw the currently active screen
@ -625,7 +622,7 @@ impl Cursive {
}
if event == Event::WindowResize {
self.backend.clear();
self.clear();
}
// Event dispatch order:

24
src/printer.rs
View File

@ -21,7 +21,7 @@ pub struct Printer<'a> {
/// Whether the view to draw is currently focused or not.
pub focused: bool,
/// Currently used theme
pub theme: Theme,
pub theme: &'a Theme,
/// `true` if nothing has been drawn yet.
new: Rc<Cell<bool>>,
@ -34,7 +34,7 @@ impl<'a> Printer<'a> {
///
/// But nobody needs to know that.
#[doc(hidden)]
pub fn new<T: Into<Vec2>>(size: T, theme: Theme,
pub fn new<T: Into<Vec2>>(size: T, theme: &'a Theme,
backend: &'a backend::Concrete)
-> Self {
Printer {
@ -53,7 +53,7 @@ impl<'a> Printer<'a> {
///
/// Users rarely need to call this directly.
pub fn clear(&self) {
self.backend.clear();
self.backend.clear(self.theme.colors.background);
}
/// Returns `true` if nothing has been printed yet.
@ -123,7 +123,8 @@ impl<'a> Printer<'a> {
/// # use cursive::theme;
/// # use cursive::backend::{self, Backend};
/// # let b = backend::Concrete::init();
/// # let printer = Printer::new((6,4), theme::load_default(), &b);
/// # let t = theme::load_default();
/// # let printer = Printer::new((6,4), &t, &b);
/// printer.with_color(theme::ColorStyle::Highlight, |printer| {
/// printer.print((0,0), "This text is highlighted!");
/// });
@ -131,7 +132,7 @@ impl<'a> Printer<'a> {
pub fn with_color<F>(&self, c: ColorStyle, f: F)
where F: FnOnce(&Printer)
{
self.backend.with_color(c, || f(self));
self.backend.with_color(c.resolve(self.theme), || f(self));
}
/// Same as `with_color`, but apply a ncurses style instead,
@ -156,7 +157,8 @@ impl<'a> Printer<'a> {
/// # use cursive::theme;
/// # use cursive::backend::{self, Backend};
/// # let b = backend::Concrete::init();
/// # let printer = Printer::new((6,4), theme::load_default(), &b);
/// # let t = theme::load_default();
/// # let printer = Printer::new((6,4), &t, &b);
/// printer.print_box((0,0), (6,4), false);
/// ```
pub fn print_box<T: Into<Vec2>, S: Into<Vec2>>(&self, start: T, size: S,
@ -195,8 +197,8 @@ impl<'a> Printer<'a> {
where F: FnOnce(&Printer)
{
let color = match self.theme.borders {
None => return,
Some(BorderStyle::Outset) if !invert => ColorStyle::Tertiary,
BorderStyle::None => return,
BorderStyle::Outset if !invert => ColorStyle::Tertiary,
_ => ColorStyle::Primary,
};
@ -213,8 +215,8 @@ impl<'a> Printer<'a> {
where F: FnOnce(&Printer)
{
let color = match self.theme.borders {
None => return,
Some(BorderStyle::Outset) if invert => ColorStyle::Tertiary,
BorderStyle::None => return,
BorderStyle::Outset if invert => ColorStyle::Tertiary,
_ => ColorStyle::Primary,
};
@ -260,7 +262,7 @@ impl<'a> Printer<'a> {
// We can't be larger than what remains
size: Vec2::min(self.size - offset, size),
focused: self.focused && focused,
theme: self.theme.clone(),
theme: self.theme,
backend: self.backend,
new: self.new.clone(),
}

207
src/theme.rs
View File

@ -114,8 +114,6 @@
//! highlight_inactive = "#5555FF"
//! ```
use backend::{self, Backend};
use std::fs::File;
use std::io;
use std::io::Read;
@ -129,16 +127,45 @@ pub enum Effect {
/// No effect
Simple,
/// Reverses foreground and background colors
Reverse,
Reverse,
// TODO: bold, italic, underline
}
/// Combines a front and back color.
#[derive(Clone,Copy,Debug,PartialEq,Eq,Hash)]
pub struct ColorPair {
/// Color used for the foreground.
pub front: Color,
/// Color used for the background.
pub back: Color,
}
impl ColorPair {
/// Return an inverted color pair.
///
/// With swapped front abd back color.
pub fn invert(&self) -> Self {
ColorPair {
front: self.back,
back: self.front,
}
}
/// Creates a new color pair from color IDs.
pub fn from_256colors(front: u8, back: u8) -> Self {
Self {
front: Color::from_256colors(front),
back: Color::from_256colors(back),
}
}
}
/// Possible color style for a cell.
///
/// Represents a color pair role to use when printing something.
///
/// The current theme will assign each role a foreground and background color.
#[derive(Clone,Copy)]
#[derive(Clone,Copy,Debug,PartialEq,Eq,Hash)]
pub enum ColorStyle {
/// Application background, where no view is present.
Background,
@ -158,22 +185,34 @@ pub enum ColorStyle {
Highlight,
/// Highlight color for inactive views (not in focus).
HighlightInactive,
/// Directly specifies colors, independently of the theme.
Custom {
/// Foreground color
front: Color,
/// Background color
back: Color,
},
}
impl ColorStyle {
/// Returns the ncurses pair ID associated with this color pair.
pub fn id(self) -> i16 {
match self {
ColorStyle::Background => 1,
ColorStyle::Shadow => 2,
ColorStyle::Primary => 3,
ColorStyle::Secondary => 4,
ColorStyle::Tertiary => 5,
ColorStyle::TitlePrimary => 6,
ColorStyle::TitleSecondary => 7,
ColorStyle::Highlight => 8,
ColorStyle::HighlightInactive => 9,
}
/// Return the color pair that this style represents.
///
/// Returns `(front, back)`.
pub fn resolve(&self, theme: &Theme) -> ColorPair {
let c = &theme.colors;
let (front, back) = match *self {
ColorStyle::Background => (c.view, c.background),
ColorStyle::Shadow => (c.shadow, c.shadow),
ColorStyle::Primary => (c.primary, c.view),
ColorStyle::Secondary => (c.secondary, c.view),
ColorStyle::Tertiary => (c.tertiary, c.view),
ColorStyle::TitlePrimary => (c.title_primary, c.view),
ColorStyle::TitleSecondary => (c.title_secondary, c.view),
ColorStyle::Highlight => (c.view, c.highlight),
ColorStyle::HighlightInactive => (c.view, c.highlight_inactive),
ColorStyle::Custom { front, back } => (front, back),
};
ColorPair { front, back }
}
}
@ -183,7 +222,7 @@ pub struct Theme {
/// Whether views in a StackView should have shadows.
pub shadow: bool,
/// How view borders should be drawn.
pub borders: Option<BorderStyle>,
pub borders: BorderStyle,
/// What colors should be used through the application?
pub colors: Palette,
}
@ -192,7 +231,7 @@ impl Default for Theme {
fn default() -> Self {
Theme {
shadow: true,
borders: Some(BorderStyle::Simple),
borders: BorderStyle::Simple,
colors: Palette {
background: Color::Dark(BaseColor::Blue),
shadow: Color::Dark(BaseColor::Black),
@ -223,64 +262,29 @@ impl Theme {
self.colors.load(table);
}
}
/// Sets a theme as active.
///
/// **Don't use this directly.** Uses [`Cursive::set_theme`] instead.
///
/// [`Cursive::set_theme`]: ../struct.Cursive.html#method.set_theme
pub fn activate(&self, backend: &mut backend::Concrete) {
// Initialize each color with the backend
backend.init_color_style(ColorStyle::Background,
&self.colors.view,
&self.colors.background);
backend.init_color_style(ColorStyle::Shadow,
&self.colors.shadow,
&self.colors.shadow);
backend.init_color_style(ColorStyle::Primary,
&self.colors.primary,
&self.colors.view);
backend.init_color_style(ColorStyle::Secondary,
&self.colors.secondary,
&self.colors.view);
backend.init_color_style(ColorStyle::Tertiary,
&self.colors.tertiary,
&self.colors.view);
backend.init_color_style(ColorStyle::TitlePrimary,
&self.colors.title_primary,
&self.colors.view);
backend.init_color_style(ColorStyle::TitleSecondary,
&self.colors.title_secondary,
&self.colors.view);
backend.init_color_style(ColorStyle::Highlight,
&self.colors.view,
&self.colors.highlight);
backend.init_color_style(ColorStyle::HighlightInactive,
&self.colors.view,
&self.colors.highlight_inactive);
backend.clear();
}
}
/// Specifies how some borders should be drawn.
///
/// Borders are used around Dialogs, select popups, and panels.
#[derive(Clone,Copy,Debug)]
#[derive(Clone,Copy,Debug,PartialEq,Eq,Hash)]
pub enum BorderStyle {
/// Simple borders.
Simple,
/// Outset borders with a simple 3d effect.
Outset,
/// No borders.
None,
}
impl BorderStyle {
fn from(s: &str) -> Option<Self> {
fn from(s: &str) -> Self {
if s == "simple" {
Some(BorderStyle::Simple)
BorderStyle::Simple
} else if s == "outset" {
Some(BorderStyle::Outset)
BorderStyle::Outset
} else {
None
BorderStyle::None
}
}
}
@ -288,7 +292,7 @@ impl BorderStyle {
/// Color configuration for the application.
///
/// Assign each color role an actual color.
#[derive(Clone,Debug)]
#[derive(Copy,Clone,Debug)]
pub struct Palette {
/// Color used for the application background.
pub background: Color,
@ -352,7 +356,7 @@ fn load_color(target: &mut Color, value: Option<&toml::Value>) -> bool {
}
/// One of the 8 base colors.
#[derive(Clone,Copy,Debug)]
#[derive(Clone,Copy,Debug,PartialEq,Eq,Hash)]
pub enum BaseColor {
/// Black color
///
@ -388,8 +392,24 @@ pub enum BaseColor {
White,
}
impl From<u8> for BaseColor {
fn from(n: u8) -> Self {
match n % 8 {
0 => BaseColor::Black,
1 => BaseColor::Red,
2 => BaseColor::Green,
3 => BaseColor::Yellow,
4 => BaseColor::Blue,
5 => BaseColor::Magenta,
6 => BaseColor::Cyan,
7 => BaseColor::White,
_ => unreachable!(),
}
}
}
/// Represents a color used by the theme.
#[derive(Clone,Copy,Debug)]
#[derive(Clone,Copy,Debug,PartialEq,Eq,Hash)]
pub enum Color {
/// One of the 8 base colors.
Dark(BaseColor),
@ -405,8 +425,6 @@ pub enum Color {
RgbLowRes(u8, u8, u8),
}
impl Color {}
/// Possible error returned when loading a theme.
#[derive(Debug)]
pub enum Error {
@ -429,26 +447,47 @@ impl From<toml::de::Error> for Error {
}
impl Color {
/// Creates a color from its ID in the 256 colors list.
///
/// * Colors 0-7 are base dark colors.
/// * Colors 8-15 are base light colors.
/// * Colors 16-255 are rgb colors with 6 values per channel.
pub fn from_256colors(n: u8) -> Self {
if n < 8 {
Color::Dark(BaseColor::from(n))
} else if n < 16 {
Color::Light(BaseColor::from(n))
} else {
let n = n - 16;
let r = n / 36;
let g = (n % 36) / 6;
let b = n % 6;
Color::RgbLowRes(r, g, b)
}
}
fn parse(value: &str) -> Option<Self> {
Some(match value {
"black" => Color::Dark(BaseColor::Black),
"red" => Color::Dark(BaseColor::Red),
"green" => Color::Dark(BaseColor::Green),
"yellow" => Color::Dark(BaseColor::Yellow),
"blue" => Color::Dark(BaseColor::Blue),
"magenta" => Color::Dark(BaseColor::Magenta),
"cyan" => Color::Dark(BaseColor::Cyan),
"white" => Color::Dark(BaseColor::White),
"light black" => Color::Light(BaseColor::Black),
"light red" => Color::Light(BaseColor::Red),
"light green" => Color::Light(BaseColor::Green),
"light yellow" => Color::Light(BaseColor::Yellow),
"light blue" => Color::Light(BaseColor::Blue),
"light magenta" => Color::Light(BaseColor::Magenta),
"light cyan" => Color::Light(BaseColor::Cyan),
"light white" => Color::Light(BaseColor::White),
value => return Color::parse_special(value),
})
"black" => Color::Dark(BaseColor::Black),
"red" => Color::Dark(BaseColor::Red),
"green" => Color::Dark(BaseColor::Green),
"yellow" => Color::Dark(BaseColor::Yellow),
"blue" => Color::Dark(BaseColor::Blue),
"magenta" => Color::Dark(BaseColor::Magenta),
"cyan" => Color::Dark(BaseColor::Cyan),
"white" => Color::Dark(BaseColor::White),
"light black" => Color::Light(BaseColor::Black),
"light red" => Color::Light(BaseColor::Red),
"light green" => Color::Light(BaseColor::Green),
"light yellow" => Color::Light(BaseColor::Yellow),
"light blue" => Color::Light(BaseColor::Blue),
"light magenta" => Color::Light(BaseColor::Magenta),
"light cyan" => Color::Light(BaseColor::Cyan),
"light white" => Color::Light(BaseColor::White),
value => return Color::parse_special(value),
})
}
fn parse_special(value: &str) -> Option<Color> {

5
src/vec.rs
View File

@ -114,6 +114,11 @@ impl From<(u32, u32)> for XY<usize> {
}
}
impl From<(u8, u8)> for XY<usize> {
fn from((x, y): (u8, u8)) -> Self {
(x as usize, y as usize).into()
}
}
impl<T: Add<Output = T>, O: Into<XY<T>>> Add<O> for XY<T> {
type Output = Self;

3
src/view/scroll.rs
View File

@ -159,7 +159,8 @@ impl ScrollBase {
/// # use cursive::backend::{self, Backend};
/// # let scrollbase = ScrollBase::new();
/// # let b = backend::Concrete::init();
/// # let printer = Printer::new((5,1), theme::load_default(), &b);
/// # let t = theme::load_default();
/// # let printer = Printer::new((5,1), &t, &b);
/// # let printer = &printer;
/// let lines = ["Line 1", "Line number 2"];
/// scrollbase.draw(printer, |printer, i| {