103 lines
2.9 KiB
Rust
103 lines
2.9 KiB
Rust
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use std::{io, process};
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use termion::{color, cursor, screen::IntoAlternateScreen};
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use super::theme::Theme;
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const ESTIMATED_FRAME_BIT_SIZE: usize = 11;
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pub enum FrameDef {
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ByAbsolute(u16, u16),
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ByPercent(u16, u16),
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}
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struct Frame {
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start: (u16, u16),
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end: (u16, u16),
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}
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impl Frame {
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fn from_bottom_right(pos: (u16, u16), term: (u16, u16)) -> Self {
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Self {
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start: (term.0 - pos.0, term.1 - pos.1),
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end: pos,
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}
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}
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fn frame_str(&self, frame_char: char) -> String {
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let (w_len, h_len) = (
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(self.end.0 - self.start.0) as usize,
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(self.end.1 - self.start.1 - 1) as usize,
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);
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let width_str = frame_char.to_string().repeat(w_len + 1);
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let mut frame = String::with_capacity((h_len * 2) + (w_len * 2) * ESTIMATED_FRAME_BIT_SIZE);
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let make_line =
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|y: u16| format!("{left}{}", width_str, left = cursor::Goto(self.start.0, y));
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frame.push_str(&make_line(self.start.1));
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for y in self.start.1 + 1..self.end.1 {
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frame.push_str(&format!(
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"{left}{char}{right}{char}",
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left = cursor::Goto(self.start.0, y),
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right = cursor::Goto(self.end.0, y),
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char = frame_char,
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));
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}
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frame.push_str(&make_line(self.end.1));
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frame
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}
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}
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#[cfg(test)]
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mod test {
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use super::Frame;
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#[test]
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fn test_idk() {
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let x = Frame::from_bottom_right((16, 16), (32, 32)).frame_str('=');
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println!("starting");
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println!("{}", x);
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println!("ending");
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assert!(false)
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}
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}
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impl FrameDef {
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fn abs_size(&self) -> Frame {
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let (term_height, term_width) =
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termion::terminal_size().expect("could not get terminal size");
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let pos = match self {
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FrameDef::ByAbsolute(h, w) => {
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let (mut h, mut w) = (*h, *w);
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if h > term_height {
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h = term_height;
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}
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if w > term_width {
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w = term_width;
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}
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(h, w)
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}
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FrameDef::ByPercent(h, w) => {
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// term_height = 100%
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// x = h%
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// x = term_height * h / 100
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let (h, w) = (
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if *h > 100 { 100 } else { *h },
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if *w > 100 { 100 } else { *w },
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);
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// (h * 100 / term_height, w * 100 / term_width)
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(term_height * h / 100, term_width * w / 100)
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}
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};
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Frame::from_bottom_right(pos, (term_height, term_width))
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}
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}
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pub fn draw_frame(theme: Theme, frame_size: FrameDef) -> String {
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let frame_specs = frame_size.abs_size();
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format!(
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"{fg}{bg}{frame}",
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fg = theme.colors.frame_fg.fg_string(),
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bg = theme.colors.frame_bg.bg_string(),
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frame = frame_specs.frame_str('='),
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)
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}
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