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104 lines
2.7 KiB
Rust
104 lines
2.7 KiB
Rust
// Copyright 2021 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use cursive::theme::{BaseColor, Color, ColorStyle};
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use cursive::traits::Identifiable;
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use cursive::view::View;
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use cursive::views::ResizedView;
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use cursive::{Cursive, Printer};
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use crate::tui::constants::VIEW_LOGS;
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use cursive::utils::lines::spans::{LinesIterator, Row};
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use cursive::utils::markup::StyledString;
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use grin_util::logger::LogEntry;
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use log::Level;
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use std::collections::VecDeque;
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pub struct TUILogsView;
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impl TUILogsView {
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pub fn create() -> impl View {
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let logs_view = ResizedView::with_full_screen(LogBufferView::new(200).with_name("logs"));
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logs_view.with_name(VIEW_LOGS)
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}
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pub fn update(c: &mut Cursive, entry: LogEntry) {
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c.call_on_name("logs", |t: &mut LogBufferView| {
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t.update(entry);
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});
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}
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}
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struct LogBufferView {
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buffer: VecDeque<LogEntry>,
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}
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impl LogBufferView {
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fn new(size: usize) -> Self {
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let mut buffer = VecDeque::new();
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buffer.resize(
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size,
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LogEntry {
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log: String::new(),
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level: Level::Info,
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},
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);
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LogBufferView { buffer }
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}
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fn update(&mut self, entry: LogEntry) {
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self.buffer.push_front(entry);
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self.buffer.pop_back();
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}
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fn color(level: Level) -> ColorStyle {
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match level {
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Level::Info => ColorStyle::new(
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Color::Light(BaseColor::Green),
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Color::Dark(BaseColor::Black),
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),
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Level::Warn => ColorStyle::new(
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Color::Light(BaseColor::Yellow),
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Color::Dark(BaseColor::Black),
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),
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Level::Error => {
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ColorStyle::new(Color::Light(BaseColor::Red), Color::Dark(BaseColor::Black))
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}
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_ => ColorStyle::new(
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Color::Light(BaseColor::White),
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Color::Dark(BaseColor::Black),
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),
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}
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}
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}
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impl View for LogBufferView {
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fn draw(&self, printer: &Printer) {
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let mut i = 0;
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for entry in self.buffer.iter().take(printer.size.y) {
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printer.with_color(LogBufferView::color(entry.level), |p| {
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let log_message = StyledString::plain(entry.log.as_str());
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let mut rows: Vec<Row> = LinesIterator::new(&log_message, printer.size.x).collect();
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rows.reverse(); // So stack traces are in the right order.
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for row in rows {
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for span in row.resolve(&log_message) {
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p.print((0, p.size.y.saturating_sub(i + 1)), span.content);
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i += 1;
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}
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}
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});
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}
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}
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}
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