2017-03-22 10:05:10 +00:00
|
|
|
use cairo;
|
|
|
|
use ui_model::Color;
|
2017-03-23 15:04:24 +00:00
|
|
|
use ui::UI;
|
2017-03-22 10:05:10 +00:00
|
|
|
use shell::{Shell, NvimMode};
|
2017-03-23 15:04:24 +00:00
|
|
|
use std::sync::{Arc, Mutex};
|
|
|
|
use gtk::WidgetExt;
|
2017-03-22 10:05:10 +00:00
|
|
|
|
2017-03-22 15:37:34 +00:00
|
|
|
use glib;
|
|
|
|
|
2017-03-23 15:04:24 +00:00
|
|
|
struct Alpha(f64);
|
|
|
|
|
|
|
|
impl Alpha {
|
|
|
|
pub fn show(&mut self, step: f64) -> bool {
|
|
|
|
self.0 += step;
|
|
|
|
if self.0 > 1.0 {
|
|
|
|
self.0 = 1.0;
|
|
|
|
false
|
|
|
|
} else {
|
|
|
|
true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
pub fn hide(&mut self, step: f64) -> bool {
|
|
|
|
self.0 -= step;
|
|
|
|
if self.0 < 0.0 {
|
|
|
|
self.0 = 0.0;
|
|
|
|
false
|
|
|
|
} else {
|
|
|
|
true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
enum AnimPhase {
|
|
|
|
Shown,
|
|
|
|
Hide,
|
|
|
|
Hidden,
|
|
|
|
Show,
|
|
|
|
}
|
|
|
|
|
|
|
|
pub struct State {
|
|
|
|
alpha: Alpha,
|
|
|
|
anim_phase: AnimPhase,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl State {
|
|
|
|
pub fn new() -> State {
|
|
|
|
State {
|
|
|
|
alpha: Alpha(1.0),
|
|
|
|
anim_phase: AnimPhase::Shown,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-22 15:37:34 +00:00
|
|
|
// display, 2 sec -> hiding 1 sec -> not visible 1 sec -> showing 1 sec
|
2017-03-22 10:05:10 +00:00
|
|
|
pub struct Cursor {
|
2017-03-23 15:04:24 +00:00
|
|
|
timer: Option<glib::SourceId>,
|
|
|
|
|
|
|
|
state: Arc<Mutex<State>>,
|
2017-03-22 10:05:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
impl Cursor {
|
|
|
|
pub fn new() -> Cursor {
|
2017-03-23 15:04:24 +00:00
|
|
|
|
|
|
|
Cursor {
|
|
|
|
timer: None,
|
|
|
|
state: Arc::new(Mutex::new(State::new())),
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn start(&mut self) {
|
|
|
|
if self.timer.is_none() {
|
|
|
|
let state = self.state.clone();
|
|
|
|
self.timer = Some(glib::timeout_add(100, move || {
|
|
|
|
let mut mut_state = state.lock().unwrap();
|
|
|
|
match mut_state.anim_phase {
|
|
|
|
AnimPhase::Shown => {
|
|
|
|
mut_state.anim_phase = AnimPhase::Hide;
|
|
|
|
}
|
|
|
|
AnimPhase::Hide => {
|
|
|
|
if !mut_state.alpha.hide(0.1) {
|
|
|
|
mut_state.anim_phase = AnimPhase::Hidden;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
AnimPhase::Hidden => {
|
|
|
|
mut_state.anim_phase = AnimPhase::Show;
|
|
|
|
}
|
|
|
|
AnimPhase::Show => {
|
|
|
|
if !mut_state.alpha.show(0.1) {
|
|
|
|
mut_state.anim_phase = AnimPhase::Shown;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
SHELL!(&shell = {
|
|
|
|
// FIXME: repaint only changed area
|
|
|
|
shell.drawing_area.queue_draw();
|
|
|
|
});
|
|
|
|
glib::Continue(true)
|
|
|
|
}));
|
|
|
|
}
|
2017-03-22 10:05:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
pub fn draw(&self, ctx: &cairo::Context, shell: &Shell,
|
|
|
|
char_width: f64, line_height: f64, line_y: f64, double_width: bool, bg: &Color) {
|
2017-03-23 15:04:24 +00:00
|
|
|
|
|
|
|
|
2017-03-22 10:05:10 +00:00
|
|
|
let current_point = ctx.get_current_point();
|
2017-03-23 15:04:24 +00:00
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
ctx.set_source_rgba(1.0 - bg.0, 1.0 - bg.1, 1.0 - bg.2, 0.5 * state.alpha.0);
|
2017-03-22 10:05:10 +00:00
|
|
|
|
|
|
|
let cursor_width = if shell.mode == NvimMode::Insert {
|
|
|
|
char_width / 5.0
|
|
|
|
} else {
|
|
|
|
if double_width {
|
|
|
|
char_width * 2.0
|
|
|
|
} else {
|
|
|
|
char_width
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
ctx.rectangle(current_point.0, line_y, cursor_width, line_height);
|
|
|
|
ctx.fill();
|
|
|
|
}
|
|
|
|
}
|
2017-03-22 15:37:34 +00:00
|
|
|
|
2017-03-23 15:04:24 +00:00
|
|
|
impl Drop for Cursor {
|
|
|
|
fn drop(&mut self) {
|
|
|
|
if let Some(timer_id) = self.timer {
|
|
|
|
glib::source_remove(timer_id);
|
2017-03-22 15:37:34 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|