background / foreground highlight

This commit is contained in:
daa84 2016-03-31 19:19:08 +03:00
parent 8d2c22e571
commit 8a763c928e
3 changed files with 108 additions and 16 deletions

View File

@ -1,6 +1,7 @@
use neovim_lib::{Neovim, NeovimApi, Session}; use neovim_lib::{Neovim, NeovimApi, Session};
use std::io::{Result, Error, ErrorKind}; use std::io::{Result, Error, ErrorKind};
use std::result; use std::result;
use std::collections::HashMap;
use ui_model::UiModel; use ui_model::UiModel;
use rmp::Value; use rmp::Value;
use rmp::value::Integer; use rmp::value::Integer;
@ -18,6 +19,8 @@ pub trait RedrawEvents {
fn on_resize(&mut self, columns: u64, rows: u64); fn on_resize(&mut self, columns: u64, rows: u64);
fn on_redraw(&self); fn on_redraw(&self);
fn on_highlight_set(&mut self, attrs: &HashMap<String, Value>);
} }
macro_rules! try_str { macro_rules! try_str {
@ -110,7 +113,23 @@ fn call(method: &str, args: Vec<Value>) {
Ok(()) Ok(())
}); });
} }
_ => println!("Event {}", method), "highlight_set" => {
safe_call(move |ui| {
if let Value::Map(ref attrs) = args[0] {
let attrs_map: HashMap<String, Value> = attrs.iter().map(|v| {
match v {
&(Value::String(ref key), ref value) => (key.clone(), value.clone()),
_ => panic!("attribute key must be string"),
}
}).collect();
ui.on_highlight_set(&attrs_map);
} else {
panic!("Supports only map value as argument");
}
Ok(())
});
}
_ => println!("Event {}({:?})", method, args),
}; };
} }

View File

@ -1,5 +1,10 @@
use std::cell::RefCell; use std::cell::RefCell;
use std::thread; use std::thread;
use std::collections::HashMap;
use std::mem;
use rmp::Value;
use rmp::value::Integer;
use cairo; use cairo;
use gtk; use gtk;
@ -9,7 +14,7 @@ use gdk;
use gdk::EventKey; use gdk::EventKey;
use neovim_lib::{Neovim, NeovimApi}; use neovim_lib::{Neovim, NeovimApi};
use ui_model::UiModel; use ui_model::{UiModel, Attrs, Color};
use nvim::RedrawEvents; use nvim::RedrawEvents;
thread_local!(pub static UI: RefCell<Ui> = { thread_local!(pub static UI: RefCell<Ui> = {
@ -25,6 +30,7 @@ pub struct Ui {
pub model: UiModel, pub model: UiModel,
nvim: Option<Neovim>, nvim: Option<Neovim>,
drawing_area: DrawingArea, drawing_area: DrawingArea,
cur_attrs: Option<Attrs>,
} }
impl Ui { impl Ui {
@ -33,6 +39,7 @@ impl Ui {
model: UiModel::empty(), model: UiModel::empty(),
drawing_area: DrawingArea::new(), drawing_area: DrawingArea::new(),
nvim: None, nvim: None,
cur_attrs: None,
} }
} }
@ -104,6 +111,10 @@ fn gtk_draw(drawing_area: &DrawingArea, ctx: &cairo::Context) -> Inhibit {
let width = drawing_area.get_allocated_width() as f64; let width = drawing_area.get_allocated_width() as f64;
let height = drawing_area.get_allocated_height() as f64; let height = drawing_area.get_allocated_height() as f64;
ctx.set_source_rgb(0.0, 0.0, 0.0);
ctx.paint();
ctx.set_source_rgb(1.0, 1.0, 1.0);
let font_face = cairo::FontFace::toy_create("", let font_face = cairo::FontFace::toy_create("",
cairo::enums::FontSlant::Normal, cairo::enums::FontSlant::Normal,
cairo::enums::FontWeight::Normal); cairo::enums::FontWeight::Normal);
@ -113,11 +124,23 @@ fn gtk_draw(drawing_area: &DrawingArea, ctx: &cairo::Context) -> Inhibit {
UI.with(|ui_cell| { UI.with(|ui_cell| {
let ui = ui_cell.borrow(); let ui = ui_cell.borrow();
ctx.set_source_rgb(0.0, 0.0, 0.0);
let mut line_y = font_extents.height; let mut line_y = font_extents.height;
for line in ui.model.lines() { for line in ui.model.model() {
ctx.move_to(0.0, line_y); ctx.move_to(0.0, line_y - font_extents.descent);
ctx.show_text(&line); for cell in line {
let bg = &cell.attrs.background;
ctx.set_source_rgb(bg.0, bg.1, bg.2);
//ctx.set_source_rgb(1.0, 0.0 , 0.0);
let text_extents = ctx.text_extents(&cell.ch.to_string());
let current_point = ctx.get_current_point();
ctx.rectangle(current_point.0, line_y - font_extents.height, text_extents.width, font_extents.height);
ctx.fill();
ctx.move_to(current_point.0, current_point.1);
let fg = &cell.attrs.foreground;
ctx.set_source_rgb(fg.0, fg.1, fg.2);
ctx.show_text(&cell.ch.to_string());
}
line_y += font_extents.height; line_y += font_extents.height;
} }
}); });
@ -131,7 +154,7 @@ impl RedrawEvents for Ui {
} }
fn on_put(&mut self, text: &str) { fn on_put(&mut self, text: &str) {
self.model.put(text); self.model.put(text, &self.cur_attrs);
} }
fn on_clear(&mut self) { fn on_clear(&mut self) {
@ -145,4 +168,26 @@ impl RedrawEvents for Ui {
fn on_redraw(&self) { fn on_redraw(&self) {
self.drawing_area.queue_draw(); self.drawing_area.queue_draw();
} }
// highlight_set([Map([(String("bold"), Boolean(true)), (String("foreground"), Integer(U64(255)))])])
fn on_highlight_set(&mut self, attrs: &HashMap<String, Value>) {
let mut model_attrs = Attrs::new();
if let Some(&Value::Integer(Integer::U64(fg))) = attrs.get("foreground") {
model_attrs.foreground = split_color(fg);
}
if let Some(&Value::Integer(Integer::U64(fg))) = attrs.get("background") {
model_attrs.background = split_color(fg);
}
if attrs.contains_key("reverse") {
mem::swap(&mut model_attrs.foreground, &mut model_attrs.background);
}
self.cur_attrs = Some(model_attrs);
}
}
fn split_color(indexed_color: u64) -> Color {
let r = ((indexed_color >> 16) & 0xff) as f64;
let g = ((indexed_color >> 8) & 0xff) as f64;
let b = (indexed_color & 0xff) as f64;
Color(255.0 / r, 255.0 / g, 255.0 / b)
} }

View File

@ -1,10 +1,36 @@
#[derive(Clone)]
pub struct Color(pub f64, pub f64, pub f64);
const COLOR_BLACK: Color = Color(0.0, 0.0, 0.0);
const COLOR_WHITE: Color = Color(1.0, 1.0, 1.0);
#[derive(Clone)]
pub struct Attrs {
pub foreground: Color,
pub background: Color,
}
impl Attrs {
pub fn new() -> Attrs {
Attrs {
foreground: COLOR_WHITE,
background: COLOR_BLACK,
}
}
}
pub struct Cell { pub struct Cell {
ch: char, pub ch: char,
pub attrs: Attrs,
} }
impl Cell { impl Cell {
pub fn new(ch: char) -> Cell { pub fn new(ch: char) -> Cell {
Cell { ch: ch } Cell {
ch: ch,
attrs: Attrs::new(),
}
} }
fn clear(&mut self) { fn clear(&mut self) {
@ -43,8 +69,8 @@ impl UiModel {
} }
} }
pub fn lines(&self) -> Vec<String> { pub fn model(&self) -> &Vec<Vec<Cell>> {
self.model.iter().map(|r| r.iter().map(|c| c.ch).collect::<String>()).collect() &self.model
} }
pub fn set_cursor(&mut self, row: u64, col: u64) { pub fn set_cursor(&mut self, row: u64, col: u64) {
@ -52,8 +78,10 @@ impl UiModel {
self.cur_row = row as usize; self.cur_row = row as usize;
} }
pub fn put(&mut self, text: &str) { pub fn put(&mut self, text: &str, attrs: &Option<Attrs>) {
self.model[self.cur_row][self.cur_col].ch = text.chars().last().unwrap(); let mut cell = &mut self.model[self.cur_row][self.cur_col];
cell.ch = text.chars().last().unwrap();
cell.attrs = attrs.as_ref().map(|o| o.clone()).unwrap_or_else(|| Attrs::new());
self.cur_col += 1; self.cur_col += 1;
} }