From 40c19fd4f52d20df94c2dfa2d68102b89bd9d3f1 Mon Sep 17 00:00:00 2001
From: Gabriel Schneider <gbrls@0x4200.cafe>
Date: Tue, 15 Sep 2026 14:46:38 -0300
Subject: Add optional compact tagline styling for source context

---
 src/panes.zig | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'src/panes.zig')

diff --git a/src/panes.zig b/src/panes.zig
index ede1d661..f07e63c3 100644
--- a/src/panes.zig
+++ b/src/panes.zig
@@ -171,6 +171,9 @@ pub const Pane = struct {
     /// A row map also exists for sticky headers when soft wrapping is off.
     body_wrapped: bool = false,
     context_rows: u16 = 0,
+    body_rows: u16 = 0,
+    body_visible_rows: u16 = 0,
+    context_row_limit: ?u16 = null,
     sel: [3]Sel = @splat(.{}),
     pointer_selections: [3]?PointerSelection = @splat(null),
     next_pointer_selection: u64 = 0,
@@ -372,8 +375,9 @@ pub const Pane = struct {
         // Scrolloff is measured in the ordinary body, excluding sticky rows.
         var margin: i32 = @min(config.scroll_off, @divTrunc(@as(i32, pane.rows) - 1, 2));
         var last = off + @as(i32, pane.rows) - 1;
-        if (pane.context_rows < pane.wrap_n) {
-            const lines_shown = pane.wrap_line[pane.wrap_n - 1] - pane.wrap_line[pane.context_rows];
+        const visible_rows = if (pane.body_visible_rows > 0) @min(pane.wrap_n, pane.body_visible_rows) else pane.wrap_n;
+        if (pane.context_rows < visible_rows) {
+            const lines_shown = pane.wrap_line[visible_rows - 1] - pane.wrap_line[pane.context_rows];
             last = off + lines_shown;
             margin = @min(margin, @divTrunc(@max(0, lines_shown), 2));
         }
@@ -1829,7 +1833,7 @@ pub const File = struct {
     fn prepareContextRows(pane: *Pane, file: *State) void {
         pane.context_rows = 0;
         if (!file.tree_context or !supportsContext(pane) or pane.rows > pane.wrap_line.len) return;
-        const capacity = pane.rows -| 1; // retain at least one ordinary body row
+        const capacity = @min(pane.rows -| 1, pane.context_row_limit orelse std.math.maxInt(u16)); // retain an ordinary body row
         for (file.context_declarations) |declaration| {
             if (declaration.start_line >= file.scroll) break;
             if (declaration.end_line < file.scroll) continue;
@@ -1882,7 +1886,7 @@ pub const File = struct {
         var body_line: usize = f.scroll;
         var body_at: usize = 0;
         var written: usize = 0;
-        for (0..pane.rows) |i| {
+        for (0..if (pane.body_rows > 0) pane.body_rows else pane.rows) |i| {
             if (i > 0) {
                 if (dst) |out| out[written] = '\n';
                 written += 1;
@@ -1950,6 +1954,7 @@ pub const File = struct {
                 const cell = s.at(tx + @as(u16, @intCast(col)), body_y + @as(u16, @intCast(context_row)));
                 cell.default = false;
                 cell.style.bg = .{ .rgb = context_bg };
+                if (p.settings.tree_context_tag_style) cell.style.font_role = .tagline;
             }
         }
         var vr: u16 = 0;
-- 
cgit v1.3