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|
use super::visualizer::Visualizer;
use core::fmt;
use libpsi_core::{GateOp, QuantumCircuit};
pub struct VerticalRenderer<'a> {
circuit: &'a QuantumCircuit,
}
impl<'a> VerticalRenderer<'a> {
pub fn new(circuit: &'a QuantumCircuit) -> Self {
VerticalRenderer { circuit }
}
fn gate_label(op: &GateOp) -> String {
match op {
GateOp::H(_) => "[H]".to_string(),
GateOp::X(_) => "[X]".to_string(),
GateOp::Y(_) => "[Y]".to_string(),
GateOp::Z(_) => "[Z]".to_string(),
GateOp::S(_) => "[S]".to_string(),
GateOp::T(_) => "[T]".to_string(),
GateOp::CNOT(_, _) => "●".to_string(),
GateOp::CZ(_, _) => "●".to_string(),
GateOp::SWAP(_, _) => "╳".to_string(),
GateOp::CCNOT(_, _, _) => "●".to_string(),
GateOp::CSWAP(_, _, _) => "●".to_string(),
GateOp::Measure(_, _) => "[M]".to_string(),
GateOp::Custom(gate, _) => format!("[{}]", gate.name),
}
}
fn calculate_col_width(&self) -> usize {
let min_width = 3;
let mut max_label_len = min_width;
for op in self.circuit.operations() {
let label = Self::gate_label(op);
let char_count: usize = label.chars().count();
if char_count > max_label_len {
max_label_len = char_count;
}
}
let width = max_label_len + 2;
if width % 2 == 0 {
width + 1
} else {
width
}
}
}
impl<'a> Visualizer for VerticalRenderer<'a> {
fn export(&self) -> String {
format!("{}", self)
}
}
impl<'a> fmt::Display for VerticalRenderer<'a> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let nq = self.circuit.num_qubits();
let nc = self.circuit.num_classical();
let ops = self.circuit.operations();
let col_width = self.calculate_col_width();
let gap_width = 3;
let q_header: String = (0..nq)
.map(|i| format!("{:^width$}", format!("q{}", i), width = col_width))
.collect::<Vec<_>>()
.join(" ");
let c_header: String = (0..nc)
.map(|i| format!("{:^width$}", format!("c{}", i), width = col_width))
.collect::<Vec<_>>()
.join(" ");
if nc > 0 {
writeln!(f, "{}{}{}", q_header, " ".repeat(gap_width), c_header)?;
} else {
writeln!(f, "{}", q_header)?;
}
let q_wires: String = (0..nq)
.map(|_| format!("{:^width$}", "│", width = col_width))
.collect::<Vec<_>>()
.join(" ");
let c_wires: String = (0..nc)
.map(|_| format!("{:^width$}", "║", width = col_width))
.collect::<Vec<_>>()
.join(" ");
let full_wires = if nc > 0 {
format!("{}{}{}", q_wires, " ".repeat(gap_width), c_wires)
} else {
q_wires.clone()
};
if ops.is_empty() {
writeln!(f, "{}", full_wires)?;
return Ok(());
}
let q_total = nq * col_width + (nq - 1);
let c_total = if nc > 0 { nc * col_width + (nc - 1) } else { 0 };
let total_width = q_total + gap_width + c_total;
for op in ops {
writeln!(f, "{}", full_wires)?;
let q_targets = op.quantum_targets();
let min_q = q_targets.iter().min().copied().unwrap_or(0);
let max_q = q_targets.iter().max().copied().unwrap_or(0);
let label = Self::gate_label(op);
match op {
GateOp::H(t)
| GateOp::X(t)
| GateOp::Y(t)
| GateOp::Z(t)
| GateOp::S(t)
| GateOp::T(t) => {
let mut line: Vec<char> = vec![' '; total_width];
for i in 0..nq {
let col_start = i * (col_width + 1);
let center = col_start + col_width / 2;
if i == *t {
let label_start = col_start + (col_width - label.chars().count()) / 2;
for (j, ch) in label.chars().enumerate() {
line[label_start + j] = ch;
}
} else {
line[center] = '│';
}
}
for i in 0..nc {
let center = q_total + gap_width + i * (col_width + 1) + col_width / 2;
line[center] = '║';
}
let gate_line: String = line.into_iter().collect();
writeln!(f, "{}", gate_line)?;
}
GateOp::CNOT(c, t) | GateOp::CZ(c, t) | GateOp::SWAP(c, t) => {
let (sym1, sym2) = match op {
GateOp::CNOT(_, _) => ('●', '⊕'),
GateOp::CZ(_, _) => ('●', '●'),
GateOp::SWAP(_, _) => ('╳', '╳'),
_ => unreachable!(),
};
let mut line: Vec<char> = vec![' '; total_width];
for i in 0..nq {
let center = i * (col_width + 1) + col_width / 2;
if i < min_q || i > max_q {
line[center] = '│';
} else if i == *c {
line[center] = sym1;
} else if i == *t {
line[center] = sym2;
}
}
let min_center = min_q * (col_width + 1) + col_width / 2;
let max_center = max_q * (col_width + 1) + col_width / 2;
for pos in (min_center + 1)..max_center {
if line[pos] == ' ' {
line[pos] = '─';
}
}
for i in 0..nc {
let center = q_total + gap_width + i * (col_width + 1) + col_width / 2;
line[center] = '║';
}
let gate_line: String = line.into_iter().collect();
writeln!(f, "{}", gate_line)?;
}
GateOp::CCNOT(c1, c2, t) | GateOp::CSWAP(c1, c2, t) => {
let (sym_c, sym_t) = match op {
GateOp::CCNOT(_, _, _) => ('●', '⊕'),
GateOp::CSWAP(_, _, _) => ('●', '╳'),
_ => unreachable!(),
};
let is_cswap = matches!(op, GateOp::CSWAP(_, _, _));
let mut line: Vec<char> = vec![' '; total_width];
for i in 0..nq {
let center = i * (col_width + 1) + col_width / 2;
if i < min_q || i > max_q {
line[center] = '│';
} else if i == *c1 {
line[center] = sym_c;
} else if i == *c2 {
line[center] = if is_cswap { sym_t } else { sym_c };
} else if i == *t {
line[center] = sym_t;
}
}
let min_center = min_q * (col_width + 1) + col_width / 2;
let max_center = max_q * (col_width + 1) + col_width / 2;
for pos in (min_center + 1)..max_center {
if line[pos] == ' ' {
line[pos] = '─';
}
}
for i in 0..nc {
let center = q_total + gap_width + i * (col_width + 1) + col_width / 2;
line[center] = '║';
}
let gate_line: String = line.into_iter().collect();
writeln!(f, "{}", gate_line)?;
}
GateOp::Measure(mq, mc) => {
let mut line: Vec<char> = vec![' '; total_width];
for i in 0..nq {
let col_start = i * (col_width + 1);
let center = col_start + col_width / 2;
if i < *mq {
line[center] = '│';
} else if i == *mq {
let label_start = col_start + (col_width - label.chars().count()) / 2;
for (j, ch) in label.chars().enumerate() {
line[label_start + j] = ch;
}
}
}
let mq_col_start = *mq * (col_width + 1);
let mq_center = mq_col_start + col_width / 2;
let mc_start = q_total + gap_width;
let mc_center = mc_start + *mc * (col_width + 1) + col_width / 2;
for pos in (mq_center + 2)..=mc_center {
if line[pos] == ' ' {
line[pos] = '═';
}
}
line[mc_center] = '╣';
for i in 0..nc {
let center = mc_start + i * (col_width + 1) + col_width / 2;
if i > *mc {
line[center] = '║';
}
}
let measure_line: String = line.into_iter().collect();
writeln!(f, "{}", measure_line)?;
}
GateOp::Custom(_, targets) => {
let mut line: Vec<char> = vec![' '; total_width];
if targets.len() == 1 {
for i in 0..nq {
let col_start = i * (col_width + 1);
let center = col_start + col_width / 2;
if i == targets[0] {
let label_start =
col_start + (col_width - label.chars().count()) / 2;
for (j, ch) in label.chars().enumerate() {
line[label_start + j] = ch;
}
} else {
line[center] = '│';
}
}
for i in 0..nc {
let center = q_total + gap_width + i * (col_width + 1) + col_width / 2;
line[center] = '║';
}
} else {
for i in 0..nq {
let col_start = i * (col_width + 1);
let center = col_start + col_width / 2;
if i < min_q || i > max_q {
line[center] = '│';
} else if i == targets[0] {
let label_start =
col_start + (col_width - label.chars().count()) / 2;
for (j, ch) in label.chars().enumerate() {
line[label_start + j] = ch;
}
} else if targets.contains(&i) {
line[center] = '□';
}
}
let min_center = min_q * (col_width + 1) + col_width / 2;
let max_center = max_q * (col_width + 1) + col_width / 2;
for pos in (min_center + 1)..max_center {
if line[pos] == ' ' {
line[pos] = '─';
}
}
for i in 0..nc {
let center = q_total + gap_width + i * (col_width + 1) + col_width / 2;
line[center] = '║';
}
}
let gate_line: String = line.into_iter().collect();
writeln!(f, "{}", gate_line)?;
}
}
}
writeln!(f, "{}", full_wires)?;
let end_line: String = "░".repeat(total_width);
writeln!(f, "{}", end_line)?;
Ok(())
}
}
|
