Struct TerminalCanvas 

pub struct TerminalCanvas {
    pub width: usize,
    pub height: usize,
}

Fields

width: usize

height: usize

Implementations

impl TerminalCanvas

pub fn new(width: usize, height: usize) -> Self

pub fn clear_screen(&self)

pub fn restore_cursor(&self)

pub fn show_cursor(&self)

pub fn move_to(&self, row: usize, col: usize)

pub fn clear_region(&self, top: usize, left: usize, w: usize, h: usize)

pub fn draw_panel( &self, top: usize, left: usize, w: usize, h: usize, title: &str, status: Option<&str>, )

Gambar panel dengan border metal, title bar, dan optional status teks. Mirip tampilan hardware compressor/limiter di studio profesional.

pub fn draw_vu_meter( &self, row: usize, col: usize, label: &str, current_linear: f32, peak_linear: f32, db_value: f32, width: usize, )

Render VU Meter bergaya plugin DAW lengkap:

• Bar gradien hijau → kuning → merah (segmen LED)
• Peak hold indicator (⬤) yang persist antar-frame
• Panah arah (▲/▼) menunjukkan level naik/turun
• Nilai dBFS digital di samping

pub fn draw_vu_simple( &self, row: usize, col: usize, label: &str, level_linear: f32, width: usize, )

Versi ringkas tanpa peak hold & arrow

pub fn draw_smooth_spectrum( &self, top: usize, left: usize, height: usize, bands: &[(f32, &str)], )

Spectrum analyzer vertikal dengan tepi mulus (antialiasing). Setiap kolom merepresentasikan satu band frekuensi. Menggunakan █ penuh + ▀ setengah atas untuk kesan halus seperti hardware spectrum analyzer analog.

pub fn draw_waveform( &self, top: usize, left: usize, width: usize, height: usize, samples: &[f32], )

Render mini waveform horizontal dalam area tertentu. Setiap sample direpresentasikan sebagai titik • pada posisi Y sesuai amplitude.

pub fn draw_rolling_meter( &self, top: usize, left: usize, width: usize, height: usize, value: f32, peak_value: f32, label: &str, )

Rolling/falling level meter bergaya hardware mixer. Level turun secara gradual memberi kesan “live”.

pub fn draw_stereo_pan( &self, row: usize, col: usize, pan_left: f32, _pan_right: f32, width: usize, )

Indikator stereo pan/phase balance horizontal.

pub fn draw_h_slider( &self, row: usize, col: usize, value_pct: f32, min_val: f32, max_val: f32, label: &str, width: usize, )

Visualisasi slider/knob horizontal bergaya mixer untuk parameter EQ atau gain.

pub fn draw_processing_status( &self, row: usize, col: usize, active_tags: &[&str], )

Badge status proses DSP aktif — tampil seperti indikator di hardware compressor.

pub fn draw_header( &self, row: usize, col: usize, title: &str, sample_rate: u32, channels: usize, )

Header bergaya judul plugin DAW dengan info teknis sistem.

pub fn draw_stat(&self, row: usize, col: usize, label: &str, value: &str)

pub fn draw_separator(&self, row: usize, col: usize, width: usize)

pub fn draw_box(&self, top: usize, left: usize, w: usize, h: usize, title: &str)

pub fn draw_level_meter( &self, row: usize, col: usize, label: &str, peak: f32, rms: f32, width: usize, )

pub fn draw_fft_spectrum( &self, top: usize, left: usize, height: usize, bands: &[(f32, &str)], )