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abstract translation code for #34

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Rushmore75
2025-11-13 12:46:09 -07:00
parent 65f18c9abf
commit 306ea9088d
1 changed files with 40 additions and 35 deletions
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75
src/app/clipboard.rs
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@@ -62,41 +62,8 @@ impl Clipboard {
if translate {
if let Some(cell) = cell {
match cell {
// don't translate non-equations
CellType::Number(_) | CellType::String(_) => into.set_cell_raw(idx, Some(cell.clone())),
CellType::Equation(eq) => {
// extract all the variables
let ctx = ExtractionContext::new();
let _ = eval_with_context(eq, &ctx);
let mut rolling = eq.clone();
// translate standard vars A0 -> A1
for old_var in ctx.dump_vars() {
if let Some((src_x, src_y)) = Grid::parse_to_idx(&old_var) {
let (x1, y1) = self.source_cell;
let x1 = x1 as i32;
let y1 = y1 as i32;
let (x2, y2) = into.cursor();
let x2 = x2 as i32;
let y2 = y2 as i32;
let dest_x = (src_x as i32 + (x2 - x1)) as usize;
let dest_y = (src_y as i32 + (y2 - y1)) as usize;
let alpha = Grid::num_to_char(dest_x);
let alpha = alpha.trim();
let new_var = format!("{alpha}{dest_y}");
// swap out vars
rolling = rolling.replace(&old_var, &new_var);
} else {
// why you coping invalid stuff, nerd?
}
}
into.set_cell_raw(idx, Some(rolling));
}
}
let trans = Clipboard::translate_cell(cell, self.source_cell, into.cursor());
into.set_cell_raw(idx, Some(trans));
} else {
// cell doesn't exist, no need to translate
into.set_cell_raw::<CellType>(idx, None);
@@ -113,6 +80,44 @@ impl Clipboard {
self.last_paste_cell = (cx, cy);
}
fn translate_cell(cell: &CellType, from: (usize, usize), to: (usize, usize)) -> CellType {
match cell {
// don't translate non-equations
CellType::Number(_) | CellType::String(_) => return cell.clone(),
CellType::Equation(eq) => {
// extract all the variables
let ctx = ExtractionContext::new();
let _ = eval_with_context(eq, &ctx);
let mut rolling = eq.clone();
// translate standard vars A0 -> A1
for old_var in ctx.dump_vars() {
if let Some((src_x, src_y)) = Grid::parse_to_idx(&old_var) {
let (x1, y1) = from;
let x1 = x1 as i32;
let y1 = y1 as i32;
let (x2, y2) = to;
let x2 = x2 as i32;
let y2 = y2 as i32;
let dest_x = (src_x as i32 + (x2 - x1)) as usize;
let dest_y = (src_y as i32 + (y2 - y1)) as usize;
let alpha = Grid::num_to_char(dest_x);
let alpha = alpha.trim();
let new_var = format!("{alpha}{dest_y}");
// swap out vars
rolling = rolling.replace(&old_var, &new_var);
} else {
// why you coping invalid stuff, nerd?
}
}
return rolling.into();
}
}
}
/// Clones data from Grid into self.
/// Start and end don't have to be sorted in any sort of way. The function works with
/// any two points.