772dbdd6

Fix selection clear on off-grid click and clampGridPoint row clamping

a73x   2026-04-09 18:47

- Left-click outside the grid now always clears committed selection
  (previously only cleared when hover was non-null, leaving stale
  committed selections behind on off-grid clicks)
- clampGridPoint now clamps row to max_row instead of returning null,
  matching the existing col-clamping behaviour; avoids silently losing
  anchor during mid-drag grid resize

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---

diff --git a/src/main.zig b/src/main.zig
index 94fafe6..ed72de0 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -689,10 +689,9 @@ fn clampGridPoint(point: GridPoint, cols: u16, rows: u16) ?GridPoint {
    if (cols == 0 or rows == 0) return null;
    const max_col = @as(u32, cols) - 1;
    const max_row = @as(u32, rows) - 1;
    if (point.row > max_row) return null;
    return .{
        .col = @min(point.col, max_col),
        .row = point.row,
        .row = @min(point.row, max_row),
    };
}

@@ -731,10 +730,10 @@ fn handlePointerSelectionEvent(
        },
        .button_press => |b| {
            if (b.button == BTN_LEFT) {
                state.committed = null;
                if (state.hover) |hover| {
                    state.anchor = hover;
                    state.active = .{ .start = hover, .end = hover };
                    state.committed = null;
                }
            }
        },