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-rw-r--r--src/panes.zig623
1 files changed, 21 insertions, 602 deletions
diff --git a/src/panes.zig b/src/panes.zig
index 9bf2d92f..e6634583 100644
--- a/src/panes.zig
+++ b/src/panes.zig
@@ -24,8 +24,6 @@ const Key = pardes.Key;
pub const EditText = struct { text: []u8, row0: i32 };
pub const Pane = struct {
- pub const Mode = enum { normal, insert, tty };
-
/// One mouse selection (block-shaped), per button. c/r are text-area relative;
/// r counts from the tag row (body starts at BOX_H).
pub const Sel = struct {
@@ -53,39 +51,12 @@ pub const Pane = struct {
rows: []PointerRow,
raw_text: ?[]u8 = null,
};
-
- /// A modal line selection (helix `x`): whole rows [r0, r1], absolute.
- pub const LineSel = struct {
- active: bool = false,
- r0: i32 = 0,
- r1: i32 = 0,
- };
-
- pub const CharSel = struct {
- active: bool = false,
- row: i32 = 0,
- col: i32 = 0,
- explicit: bool = false,
- };
-
pub const LookSpot = struct {
row: i32,
col0: i32,
col1: i32,
};
- pub const max_selections = 64;
-
- pub const SelRange = struct {
- row: i32,
- col: i32,
- arow: i32,
- acol: i32,
- /// this range's own j/k goal column (helix Range::old_visual_position);
- /// the PRIMARY's copy is Pane.sticky_col
- sticky: i32 = -1,
- };
-
const PdfSlot = if (Pdf.enabled) ?Pdf.State else void;
pub const Prompt = union(enum) {
@@ -108,7 +79,9 @@ pub const Pane = struct {
/// dies with it, as acme keeps the same on its Window
/// (editors/acme/dat.h:226-266).
fs: pardes.ctlfs.pane.State = .{},
- mode: Mode = .normal,
+ /// The body: what the pane shows and edits, its cursor, selections,
+ /// mode and edit-buffer undo.
+ body: Text = .{},
vweight: f32 = 1,
/// A folded pane keeps its expansion weight, but occupies only its tag row.
collapsed: bool = false,
@@ -121,26 +94,13 @@ pub const Pane = struct {
file: ?File.State = null,
image: ?Image.State = null,
pdf: PdfSlot = if (Pdf.enabled) null else {},
- msel: LineSel = .{},
- vsel: CharSel = .{},
- sels: [max_selections - 1]SelRange = undefined,
- nsel: u8 = 0,
- select: bool = false,
- /// sticky goal column for j/k runs (helix old_visual_position): any
- /// non-vertical range write resets it to -1.
- sticky_col: i32 = -1,
- append_at: ?struct { row: i32, col: i32 } = null,
- normal: modal.Normal.State = .{},
- /// last f/F/t/T motion, for Alt-. repeat
- find_op: u8 = 0,
- find_ch: u21 = 0,
/// Tag-tail input state. The tag text is presentation; this tag carries
/// which operation owns it and the tail offset restored on submit/cancel.
prompt: Prompt = .none,
search_pane: ?usize = null,
search_row: ?usize = null,
look_at: ?LookSpot = null,
- sel_snap: [max_selections]modal.Selection = undefined,
+ sel_snap: [Text.max_selections]modal.Selection = undefined,
nsel_snap: u8 = 0,
sel_snap_pri: u8 = 0,
sel_snap_expl: bool = false,
@@ -153,7 +113,7 @@ pub const Pane = struct {
tag_sel: bool = false,
/// the body mode a tag edit hijacked (tags are always insert); terminals
/// restore it on exit so clicking the tag never changes the pane's mode
- tag_mode: Mode = .normal,
+ tag_mode: Text.Mode = .normal,
tag_col: u16 = 0,
tag_saved_col: ?u16 = null,
tag_anchor: u16 = 0,
@@ -163,14 +123,7 @@ pub const Pane = struct {
tag_name_len: ?u16 = null,
/// Display columns hidden to reveal the tag caret; tag addresses stay whole.
tag_scroll: u16 = 0,
- ed_undo: [Terminal.history_max]Terminal.Snapshot = undefined,
- ed_undo_len: usize = 0,
- ed_redo: [Terminal.history_max]Terminal.Snapshot = undefined,
- ed_redo_len: usize = 0,
cwd: Cwd = .none,
- cur_pinned: bool = false,
- cur_row: i32 = 0,
- cur_col: i32 = 0,
hscroll: i32 = 0,
// Visible rows map to source lines and raw/display column origins.
wrap_line: [limits.wrap_rows]i32 = undefined,
@@ -512,7 +465,7 @@ pub const Pane = struct {
// already, so only treat an ancestor as pinned in the matching view.
if (pane.context_rows < pane.wrap_n and pane.wrap_line[pane.context_rows] == off) {
for (pane.wrap_line[0..pane.context_rows]) |row| {
- if (row == pane.cur_row) {
+ if (row == pane.body.cur_row) {
in_context = true;
break;
}
@@ -528,10 +481,10 @@ pub const Pane = struct {
margin = @min(margin, @divTrunc(@max(0, lines_shown), 2));
}
if (!in_context) {
- if (pane.cur_row < off + margin) {
- pane.scrollBy(pane.cur_row - margin - off);
- } else if (pane.cur_row > last - margin) {
- var to = pane.cur_row + margin;
+ if (pane.body.cur_row < off + margin) {
+ pane.scrollBy(pane.body.cur_row - margin - off);
+ } else if (pane.body.cur_row > last - margin) {
+ var to = pane.body.cur_row + margin;
if (pane.file) |*f| to = @min(to, @as(i32, @intCast(File.nlines(pane.gpa, f) -| 1)));
if (comptime Pdf.enabled) {
if (pane.pdf) |pv|
@@ -544,8 +497,8 @@ pub const Pane = struct {
if (pane.body_wrapped) return;
const w: i32 = @max(1, @as(i32, pane.cols) - @as(i32, File.gutterWidth(pane)));
const hmargin: i32 = @min(config.scroll_off, @divTrunc(w - 1, 2));
- const line = modal.lineSlice(f.content, @intCast(@max(0, pane.cur_row)));
- const raw_cur: usize = @intCast(@max(0, pane.cur_col));
+ const line = modal.lineSlice(f.content, @intCast(@max(0, pane.body.cur_row)));
+ const raw_cur: usize = @intCast(@max(0, pane.body.cur_col));
const raw_scroll: usize = @intCast(@max(0, pane.hscroll));
const cur = @as(i32, @intCast(File.rawDisplayCol(line, raw_cur)));
const visual_scroll = @as(i32, @intCast(File.rawDisplayCol(line, raw_scroll)));
@@ -559,16 +512,16 @@ pub const Pane = struct {
}
pub fn pinCursor(pane: *Pane) void {
- if (pane.cur_pinned) return;
+ if (pane.body.cur_pinned) return;
if (pane.file != null or hasPdf(pane)) {
- pane.cur_row = pane.scroll();
- pane.cur_col = 0;
+ pane.body.cur_row = pane.scroll();
+ pane.body.cur_col = 0;
} else {
const cur = Terminal.gridCursor(pane);
- pane.cur_row = pane.surfRow(@as(i32, cur.y) + Terminal.gridOffset(pane));
- pane.cur_col = @intCast(cur.x);
+ pane.body.cur_row = pane.surfRow(@as(i32, cur.y) + Terminal.gridOffset(pane));
+ pane.body.cur_col = @intCast(cur.x);
}
- pane.cur_pinned = true;
+ pane.body.cur_pinned = true;
}
pub fn hasPdf(pane: *const Pane) bool {
@@ -581,545 +534,10 @@ pub const Pane = struct {
else
false;
}
-
- pub fn toModalCursor(pane: *Pane) modal.Cursor {
- return .{ .row = @intCast(@max(0, pane.cur_row)), .col = @intCast(@max(0, pane.cur_col)) };
- }
-
- pub fn fromModalCursor(pane: *Pane, c: modal.Cursor) void {
- pane.cur_row = @as(i32, @intCast(c.row));
- pane.cur_col = @intCast(c.col);
- pane.cur_pinned = true;
- }
-
- pub fn insertVerticalCursor(lines: []const []const u8, c: modal.Cursor, down: bool) modal.Cursor {
- if (lines.len == 0) return c;
- const row = if (down) @min(c.row + 1, lines.len - 1) else c.row -| 1;
- const target = lines[row];
- if (target.len == 0) return .{ .row = row, .col = 0 };
- const source = if (c.row < lines.len) lines[c.row] else "";
- const goal = File.rawDisplayCol(source, c.col);
- const mapped = File.rawAtDisplay(target, goal);
- const last = modal.prevGrapheme(target, target.len);
- return .{ .row = row, .col = modal.graphemeStart(target, @min(mapped, last)) };
- }
-
- pub fn primaryRange(pane: *Pane, text: []const u8, row0: i32) modal.Selection {
- const c = File.textOffset(pane, text, .{ .row = @intCast(@max(0, pane.cur_row - row0)), .col = @intCast(@max(0, pane.cur_col)) });
- if (pane.msel.active) {
- // legacy line selection (file-search results highlight): linewise
- const r0: usize = @intCast(@max(0, @min(pane.msel.r0, pane.msel.r1) - row0));
- const r1: usize = @intCast(@max(0, @max(pane.msel.r0, pane.msel.r1) - row0));
- const s = modal.lineStartOffset(text, r0);
- const e = if (r1 + 1 >= modal.cursorLineCount(text)) text.len else modal.lineStartOffset(text, r1 + 1);
- return .{ .anchor = s, .head = @max(e, modal.nextGrapheme(text, c)) };
- }
- if (pane.vsel.active) return cellRange(text, pane.vsel.row - row0, pane.vsel.col, pane.cur_row - row0, pane.cur_col);
- return .{ .anchor = c, .head = modal.nextGrapheme(text, c) };
- }
-
- pub fn cellRange(text: []const u8, arow: i32, acol: i32, hrow: i32, hcol: i32) modal.Selection {
- const a = modal.offsetAt(text, .{ .row = @intCast(@max(0, arow)), .col = @intCast(@max(0, acol)) });
- const c = modal.offsetAt(text, .{ .row = @intCast(@max(0, hrow)), .col = @intCast(@max(0, hcol)) });
- return cellOffRange(text, a, c);
- }
-
- /// the same, from the two cells' gap offsets
- pub fn cellOffRange(text: []const u8, a: usize, c: usize) modal.Selection {
- if (a <= c) return .{ .anchor = a, .head = modal.nextGrapheme(text, c) };
- return .{ .anchor = modal.nextGrapheme(text, a), .head = c };
- }
-
- pub fn rangeCells(text: []const u8, r: modal.Selection) struct { cur: usize, anc: usize } {
- if (r.head > r.anchor) return .{ .cur = modal.prevGrapheme(text, r.head), .anc = r.anchor };
- if (r.head < r.anchor) return .{ .cur = r.head, .anc = modal.prevGrapheme(text, r.anchor) };
- return .{ .cur = r.head, .anc = r.head };
- }
-
- pub fn setRange(pane: *Pane, text: []const u8, row0: i32, r0: modal.Selection, explicit: bool) void {
- var r = r0;
- if (r.anchor == r.head) r.head = modal.nextGrapheme(text, r.head); // min_width_1
- const off = rangeCells(text, r);
- const cc = File.textPosition(pane, text, off.cur);
- // a bare block cursor has both cells on the same offset — the common
- // case by far — and this conversion is not free even indexed
- const ac = if (off.anc == off.cur) cc else File.textPosition(pane, text, off.anc);
- pane.cur_row = @as(i32, @intCast(cc.row)) + row0;
- pane.cur_col = @intCast(cc.col);
- pane.vsel = .{
- .active = off.anc != off.cur or pane.select,
- .row = @as(i32, @intCast(ac.row)) + row0,
- .col = @intCast(ac.col),
- .explicit = explicit or pane.select,
- };
- pane.msel.active = false;
- pane.nsel = 0; // writing ONE range means the selection IS that range
- pane.cur_pinned = true;
- pane.sticky_col = -1;
- pane.normal.clear();
- pane.ensureCursorVisible();
- }
-
- pub fn ranges(pane: *Pane, text: []const u8, row0: i32, out: *[max_selections]modal.Selection) struct { n: usize, pri: usize } {
- const pr = primaryRange(pane, text, row0);
- var n: usize = 0;
- var pri: usize = 0;
- var placed = false;
- for (pane.sels[0..pane.nsel]) |s| {
- const r = cellRange(text, s.arow - row0, s.acol, s.row - row0, s.col);
- if (!placed and @min(pr.anchor, pr.head) <= @min(r.anchor, r.head)) {
- pri = n;
- out[n] = pr;
- n += 1;
- placed = true;
- }
- out[n] = r;
- n += 1;
- }
- if (!placed) {
- pri = n;
- out[n] = pr;
- n += 1;
- }
- return .{ .n = n, .pri = pri };
- }
-
- pub fn setRanges(pane: *Pane, text: []const u8, in: []const modal.Selection, sticky: []const i32, pri0: usize, explicit: bool) void {
- if (in.len == 0) return; // helix asserts non-empty; here it just means "no change"
- var r: [max_selections]modal.Selection = undefined;
- var st: [max_selections]i32 = undefined;
- var n: usize = @min(in.len, max_selections);
- var pri: usize = @min(pri0, n - 1);
- for (in[0..n], 0..) |x, i| {
- r[i] = x;
- if (r[i].anchor == r[i].head) r[i].head = modal.nextGrapheme(text, r[i].head);
- st[i] = if (i < sticky.len) sticky[i] else -1;
- }
- // insertion sort by start — n is tiny and usually already ordered
- var i: usize = 1;
- while (i < n) : (i += 1) {
- var j = i;
- while (j > 0 and @min(r[j].anchor, r[j].head) < @min(r[j - 1].anchor, r[j - 1].head)) : (j -= 1) {
- std.mem.swap(modal.Selection, &r[j], &r[j - 1]);
- std.mem.swap(i32, &st[j], &st[j - 1]);
- if (pri == j) pri = j - 1 else if (pri == j - 1) pri = j;
- }
- }
- var k: usize = 0;
- i = 1;
- while (i < n) : (i += 1) {
- const a = r[k];
- const b = r[i];
- const af = @min(a.anchor, a.head);
- const at = @max(a.anchor, a.head);
- const bf = @min(b.anchor, b.head);
- const bt = @max(b.anchor, b.head);
- if (af == bf or (at > bf and bt > af)) {
- r[k] = if (a.anchor > a.head and b.anchor > b.head)
- .{ .anchor = @max(a.anchor, b.anchor), .head = @min(a.head, b.head) }
- else
- .{ .anchor = @min(af, bf), .head = @max(at, bt) };
- if (pri == i) pri = k;
- if (st[k] < 0) st[k] = st[i];
- continue;
- }
- k += 1;
- r[k] = b;
- st[k] = st[i];
- if (pri == i) pri = k;
- }
- n = k + 1;
- setRange(pane, text, 0, r[pri], explicit);
- pane.sticky_col = st[pri];
- var w: usize = 0;
- for (r[0..n], 0..) |x, idx| {
- if (idx == pri) continue;
- const c = rangeCells(text, x);
- const cc = modal.positionAt(text, c.cur);
- const ac = modal.positionAt(text, c.anc);
- pane.sels[w] = .{
- .row = @as(i32, @intCast(cc.row)),
- .col = @intCast(cc.col),
- .arow = @as(i32, @intCast(ac.row)),
- .acol = @intCast(ac.col),
- .sticky = st[idx],
- };
- w += 1;
- }
- pane.nsel = @intCast(w);
- }
-
- pub fn multiSelAction(pane: *Pane, text: []const u8, kind: modal.Normal.Multi, cnt: usize) void {
- var rs: [max_selections]modal.Selection = undefined;
- const got = ranges(pane, text, 0, &rs);
- const n = got.n;
- const expl = (pane.vsel.active and pane.vsel.explicit) or pane.msel.active;
- if (kind == .remove_primary) {
- if (n < 2) return; // helix: "no selections remaining"
- var out: [max_selections]modal.Selection = undefined;
- var m: usize = 0;
- for (rs[0..n], 0..) |r, i| {
- if (i == got.pri) continue;
- out[m] = r;
- m += 1;
- }
- // helix Selection::remove: the NEXT range takes over, or the
- // previous one when the primary was last
- return setRanges(pane, text, out[0..m], &.{}, @min(got.pri, m - 1), expl);
- }
- if (kind == .rotate_forward or kind == .rotate_backward) {
- const step = cnt % n;
- const pri = if (kind == .rotate_forward) (got.pri + step) % n else (got.pri + (n - step)) % n;
- return setRanges(pane, text, rs[0..n], &.{}, pri, expl);
- }
- if (kind == .merge) {
- // helix merge_selections: first.merge(last) — the ranges are
- // sorted, so that is simply the whole span
- const lo = @min(rs[0].anchor, rs[0].head);
- const hi = @max(rs[n - 1].anchor, rs[n - 1].head);
- const rev = rs[0].anchor > rs[0].head and rs[n - 1].anchor > rs[n - 1].head;
- const one: modal.Selection = if (rev) .{ .anchor = hi, .head = lo } else .{ .anchor = lo, .head = hi };
- return setRanges(pane, text, &.{one}, &.{}, 0, expl);
- }
- if (kind == .merge_consecutive) {
- var out: [max_selections]modal.Selection = undefined;
- var m: usize = 0;
- var pri: usize = 0;
- for (rs[0..n], 0..) |r, i| {
- if (m > 0 and @min(r.anchor, r.head) == @max(out[m - 1].anchor, out[m - 1].head)) {
- const lo = @min(@min(out[m - 1].anchor, out[m - 1].head), @min(r.anchor, r.head));
- const hi = @max(@max(out[m - 1].anchor, out[m - 1].head), @max(r.anchor, r.head));
- out[m - 1] = .{ .anchor = lo, .head = hi };
- if (i == got.pri) pri = m - 1;
- continue;
- }
- if (i == got.pri) pri = m;
- out[m] = r;
- m += 1;
- }
- return setRanges(pane, text, out[0..m], &.{}, pri, expl);
- }
- if (kind == .split_newline) {
- // helix selection::split_on_newline — one range per line the
- // selection covers, the newlines themselves left out
- var out: [max_selections]modal.Selection = undefined;
- var m: usize = 0;
- for (rs[0..n]) |r| {
- const from = @min(r.anchor, r.head);
- const to = @max(r.anchor, r.head);
- if (from == to) {
- if (m < max_selections) {
- out[m] = r;
- m += 1;
- }
- continue;
- }
- var start = from;
- while (start < to and m < max_selections) {
- const eol = modal.lineEndOffset(text, modal.lineAtOffset(text, start));
- if (eol >= to) {
- out[m] = .{ .anchor = start, .head = to };
- m += 1;
- break;
- }
- out[m] = .{ .anchor = start, .head = eol };
- m += 1;
- start = eol + 1;
- }
- }
- if (m == 0) return;
- return setRanges(pane, text, out[0..m], &.{}, 0, true); // helix keeps primary 0
- }
- if (kind == .trim) {
- // helix trim_selections: whitespace off both ends; ranges that are
- // empty or all whitespace are dropped entirely
- var out: [max_selections]modal.Selection = undefined;
- var m: usize = 0;
- for (rs[0..n]) |r| {
- var from = @min(r.anchor, r.head);
- var to = @max(r.anchor, r.head);
- while (from < to and std.ascii.isWhitespace(text[from])) from += 1;
- while (to > from and std.ascii.isWhitespace(text[to - 1])) to -= 1;
- if (from >= to) continue;
- out[m] = if (r.anchor > r.head) .{ .anchor = to, .head = from } else .{ .anchor = from, .head = to };
- m += 1;
- }
- if (m == 0) { // helix: collapse_selection + keep_primary_selection
- const c = modal.selectionCursor(text, rs[got.pri]);
- return setRange(pane, text, 0, .{ .anchor = c, .head = c }, false);
- }
- // helix: the first survivor that OVERLAPS the old primary, else the last
- const pf = @min(rs[got.pri].anchor, rs[got.pri].head);
- const pt = @max(rs[got.pri].anchor, rs[got.pri].head);
- var pri = m - 1;
- for (out[0..m], 0..) |r, i| {
- const f = @min(r.anchor, r.head);
- const t = @max(r.anchor, r.head);
- if (f == pf or (t > pf and pt > f)) {
- pri = i;
- break;
- }
- }
- return setRanges(pane, text, out[0..m], &.{}, pri, expl);
- }
- const below = kind == .copy_below;
- var out: [max_selections]modal.Selection = undefined;
- var m: usize = 0;
- var pri: usize = 0;
- const nlines = modal.cursorLineCount(text);
- for (rs[0..n], 0..) |r, ri| {
- const is_pri = ri == got.pri;
- // head-exclusive: back the leading end off onto its own cell
- const hp = modal.positionAt(text, if (r.anchor < r.head) modal.prevGrapheme(text, r.head) else r.head);
- const ap = modal.positionAt(text, if (r.anchor < r.head) r.anchor else modal.prevGrapheme(text, r.anchor));
- const height = @max(hp.row, ap.row) - @min(hp.row, ap.row) + 1;
- if (m >= max_selections) break;
- if (is_pri) pri = m;
- out[m] = r;
- m += 1;
- var made: usize = 0;
- var k: usize = 0;
- while (made < cnt and m < max_selections) : (k += 1) {
- const d = (k + 1) * height;
- const arow = if (below) ap.row + d else ap.row -| d;
- const hrow = if (below) hp.row + d else hp.row -| d;
- if (arow >= nlines or hrow >= nlines) break;
- const a2 = modal.offsetAt(text, .{ .row = arow, .col = ap.col });
- const h2 = modal.offsetAt(text, .{ .row = hrow, .col = hp.col });
- // a line too short to reach the column is skipped, not clamped
- if (modal.positionAt(text, a2).col == ap.col and modal.positionAt(text, h2).col == hp.col) {
- if (is_pri) pri = m;
- out[m] = modal.moveSelectionCursor(text, .{ .anchor = a2, .head = a2 }, h2, true);
- m += 1;
- made += 1;
- }
- if (arow == 0 and hrow == 0) break;
- }
- }
- setRanges(pane, text, out[0..m], &.{}, pri, expl);
- }
-
- /// a range's start CELL (document order key) — the smaller of its two ends
- pub fn selStart(s: SelRange) struct { row: i32, col: i32 } {
- if (s.arow < s.row or (s.arow == s.row and s.acol < s.col)) return .{ .row = s.arow, .col = s.acol };
- return .{ .row = s.row, .col = s.col };
- }
-
- pub fn maxLine(text: []const u8) usize {
- const nl = modal.cursorLineCount(text);
- return if (text.len == 0 or text[text.len - 1] == '\n') nl -| 2 else nl - 1;
- }
-
- /// point-target motion: collapse there (extend in select mode)
- pub fn pointMove(pane: *Pane, text: []const u8, range: modal.Selection, target: usize) void {
- setRange(pane, text, 0, modal.moveSelectionCursor(text, range, target, pane.select), false);
- }
-
- /// word motions select their traversed span (extend mode: head only)
- pub fn wordMove(pane: *Pane, text: []const u8, range: modal.Selection, cnt: usize, target: modal.WordTarget) void {
- const wr = modal.moveWord(text, range, cnt, target);
- const res = if (pane.select) modal.moveSelectionCursor(text, range, modal.selectionCursor(text, wr), true) else wr;
- setRange(pane, text, 0, res, false);
- }
-
- /// f/t/F/T: anchor at the old cursor cell, head on the hit (not found: no move)
- pub fn findMove(pane: *Pane, text: []const u8, range: modal.Selection, ch: u21, fwd: bool, till: bool, cnt: usize) void {
- const cur = modal.selectionCursor(text, range);
- const t = modal.findTarget(text, cur, ch, fwd, till, cnt) orelse return;
- const res = if (pane.select)
- modal.moveSelectionCursor(text, range, t, true)
- else
- modal.moveSelectionCursor(text, .{ .anchor = cur, .head = cur }, t, true);
- setRange(pane, text, 0, res, false);
- }
-
- /// j/k and friends: sticky goal column, clamped onto short lines' newline
- pub fn verticalMove(pane: *Pane, text: []const u8, range: modal.Selection, down: bool, cnt: usize) void {
- const cur = modal.selectionCursor(text, range);
- const pos = File.textPosition(pane, text, cur);
- const goal: usize = if (pane.sticky_col >= 0)
- @intCast(pane.sticky_col)
- else
- File.rawDisplayCol(File.textLine(pane, text, pos.row), pos.col);
- const last_row = File.textLineCount(pane, text) - 1;
- const nline = if (down) @min(pos.row + @max(1, cnt), last_row) else pos.row -| @max(1, cnt);
- const target_col = File.rawAtDisplay(File.textLine(pane, text, nline), goal);
- const t = File.textOffset(pane, text, .{ .row = nline, .col = target_col });
- // extend mode never walks onto the empty trailing line (helix)
- if (pane.select and t == text.len and text.len > 0 and text[text.len - 1] == '\n') return;
- setRange(pane, text, 0, modal.moveSelectionCursor(text, range, t, pane.select), false);
- pane.sticky_col = @intCast(goal);
- }
-
- pub fn visualMove(
- pane: *Pane,
- text: []const u8,
- range: modal.Selection,
- down: bool,
- cnt: usize,
- width: usize,
- ) void {
- const cur = modal.selectionCursor(text, range);
- const pos = File.textPosition(pane, text, cur);
- const last_row = File.textLineCount(pane, text) - 1;
- var row = pos.row;
- var line = modal.lineSlice(text, row);
- var vrow = File.visualRow(line, pos.col, width);
- const goal: usize = if (pane.sticky_col >= 0)
- @intCast(pane.sticky_col)
- else
- File.rawDisplayCol(line[vrow.start..vrow.end], pos.col -| vrow.start);
- var steps = @max(1, cnt);
- while (steps > 0) : (steps -= 1) {
- if (down) {
- if (vrow.end < line.len) {
- vrow = File.visualRow(line, vrow.end, width);
- continue;
- }
- if (row == last_row) break;
- row += 1;
- line = modal.lineSlice(text, row);
- vrow = File.visualRow(line, 0, width);
- } else {
- if (vrow.start > 0) {
- vrow = File.visualRow(line, vrow.start - 1, width);
- continue;
- }
- if (row == 0) break;
- row -= 1;
- line = modal.lineSlice(text, row);
- vrow = File.visualRow(line, line.len, width);
- }
- }
- // The newline slot is a real cursor position, but the first byte of the
- // NEXT visual row is not: landing there would read as two rows moved.
- var target_col = vrow.start + File.rawAtDisplay(line[vrow.start..vrow.end], goal);
- if (vrow.end < line.len and target_col >= vrow.end)
- target_col = modal.graphemeStart(line, vrow.end - 1);
- const t = File.textOffset(pane, text, .{ .row = row, .col = target_col });
- // extend mode never walks onto the empty trailing line (helix)
- if (pane.select and t == text.len and text.len > 0 and text[text.len - 1] == '\n') return;
- setRange(pane, text, 0, modal.moveSelectionCursor(text, range, t, pane.select), false);
- pane.sticky_col = @intCast(goal);
- }
-
- /// Ctrl-d/u: scroll half a page AND move the cursor by the same rows
- pub fn halfPageMove(pane: *Pane, text: []const u8, range: modal.Selection, down: bool) void {
- const half: i32 = @max(1, @divTrunc(@as(i32, pane.rows), 2));
- pane.scrollBy(if (down) half else -half);
- verticalMove(pane, text, range, down, @intCast(half));
- }
-
- /// helix `scroll` without cursor sync (Ctrl-f/b, PgUp/PgDn, zj/zk): shift
- /// the view, then snap a fallen-out cursor to the near scrolloff edge, col 0
- pub fn scrollViewMove(pane: *Pane, text: []const u8, range: modal.Selection, delta: i32) void {
- const margin: i32 = @min(config.scroll_off, @divTrunc(@as(i32, pane.rows) - 1, 2));
- pane.scrollBy(delta);
- const top = pane.scroll();
- const last_row: i32 = @intCast(File.textLineCount(pane, text) - 1);
- const cur = modal.selectionCursor(text, range);
- if (delta > 0) {
- const snap: i32 = @max(0, @min(top + margin, last_row));
- const head = File.textLineStart(pane, text, @intCast(snap));
- if (head <= cur) return;
- const anchor = if (pane.select) range.anchor else head;
- setRange(pane, text, 0, .{ .anchor = anchor, .head = head }, false);
- } else {
- const snap: i32 = @max(0, @min(top + @as(i32, pane.rows) - margin - 1, last_row));
- const head = File.textLineStart(pane, text, @intCast(snap));
- if (head >= cur) return;
- const anchor = if (pane.select) range.anchor else head;
- setRange(pane, text, 0, .{ .anchor = anchor, .head = head }, false);
- }
- }
-
- /// gt/gc/gb: view-relative rows, col 0, scrolloff clamped (helix goto_window)
- pub fn gotoWindow(pane: *Pane, text: []const u8, range: modal.Selection, which: enum { top, center, bottom }, cnt: usize) void {
- const margin: i32 = @min(config.scroll_off, @divTrunc(@as(i32, pane.rows) - 1, 2));
- const top = pane.scroll();
- const last_row: i32 = @intCast(File.textLineCount(pane, text) - 1);
- const last_vis: i32 = @min(@as(i32, pane.rows) - 1, last_row - top);
- const n: i32 = @intCast(cnt - 1);
- var vline: i32 = switch (which) {
- .top => top + margin + n,
- .center => top + @divTrunc(last_vis, 2),
- .bottom => top + last_vis - (margin + n),
- };
- vline = @max(vline, top + margin);
- vline = @min(vline, top + last_vis - margin);
- const row: i32 = std.math.clamp(vline, 0, last_row);
- pointMove(pane, text, range, File.textLineStart(pane, text, @intCast(row)));
- }
-
- /// helix Range::line_range — the inclusive line span a range covers
- pub fn rangeLineSpan(text: []const u8, r: modal.Selection) struct { start: usize, end: usize } {
- const from = @min(r.anchor, r.head);
- const to = @max(r.anchor, r.head);
- const to_adj = if (from == to) to else @max(modal.prevGrapheme(text, to), from);
- return .{ .start = modal.lineAtOffset(text, from), .end = modal.lineAtOffset(text, to_adj) };
- }
-
- fn lineStartOrEof(text: []const u8, line: usize) usize {
- if (line >= modal.cursorLineCount(text)) return text.len;
- return modal.lineStartOffset(text, line);
- }
-
- /// helix `x` extend_line_below: full lines incl. the newline, cursor ON
- /// the last one's '\n'; an already-line-bounded selection grows downward
- pub fn lineSelect(pane: *Pane, text: []const u8, range: modal.Selection, cnt: usize) void {
- const span = rangeLineSpan(text, range);
- const start = modal.lineStartOffset(text, span.start);
- const end = lineStartOrEof(text, span.end + 1);
- const full = @min(range.anchor, range.head) == start and @max(range.anchor, range.head) == end;
- const head = lineStartOrEof(text, span.end + cnt + @intFromBool(full));
- setRange(pane, text, 0, .{ .anchor = start, .head = head }, true);
- }
-
- /// helix `X` extend_to_line_bounds (direction kept)
- pub fn lineBoundsSelect(pane: *Pane, text: []const u8, range: modal.Selection) void {
- const span = rangeLineSpan(text, range);
- const start = modal.lineStartOffset(text, span.start);
- const end = lineStartOrEof(text, span.end + 1);
- const r: modal.Selection = if (range.head < range.anchor)
- .{ .anchor = end, .head = start }
- else
- .{ .anchor = start, .head = end };
- setRange(pane, text, 0, r, true);
- }
-
- /// helix `Alt-x` shrink_to_line_bounds (single-line selections untouched)
- pub fn shrinkSelToLineBounds(pane: *Pane, text: []const u8, range: modal.Selection) void {
- const span = rangeLineSpan(text, range);
- if (span.start == span.end) return;
- const from = @min(range.anchor, range.head);
- const to = @max(range.anchor, range.head);
- var start = modal.lineStartOffset(text, span.start);
- var end = lineStartOrEof(text, span.end + 1);
- if (start != from) start = lineStartOrEof(text, span.start + 1);
- if (end != to) end = modal.lineStartOffset(text, span.end);
- const expl = (pane.vsel.active and pane.vsel.explicit) or pane.msel.active;
- const r: modal.Selection = if (range.head < range.anchor)
- .{ .anchor = end, .head = start }
- else
- .{ .anchor = start, .head = end };
- setRange(pane, text, 0, r, expl);
- }
-
- /// pull the cursor back inside `text` after a rewrite; `row0` is the
- /// absolute surface row of its first line (0 for a file)
- pub fn clampCursor(pane: *Pane, text: []const u8, row0: i32) void {
- const n = modal.lineCount(text);
- const row: usize = @min(@as(usize, @intCast(@max(0, pane.cur_row - row0))), if (n == 0) 0 else n - 1);
- const llen = modal.lineSlice(text, row).len;
- pane.cur_row = @as(i32, @intCast(row)) + row0;
- pane.cur_col = @intCast(@min(@as(usize, @intCast(@max(0, pane.cur_col))), llen));
- pane.cur_pinned = true;
- pane.vsel.active = false;
- pane.msel.active = false;
- pane.ensureCursorVisible();
- }
};
+pub const Text = @import("Text.zig");
+
pub const File = @import("File.zig");
pub const Output = @import("Output.zig");
@@ -1134,6 +552,7 @@ pub const Terminal = @import("Terminal.zig");
test {
_ = Pane;
+ _ = Text;
_ = File;
_ = Output;
_ = Mini;
generated by cgit v1.3 (git 2.53.0) at 2026-10-02 20:51:26 +0000