Give a pane's body its own Text holding the cursor, selections, mode and undo

acme keeps what edits a text in its Text (dat.h:171-190) and the window
holds a body and a tag of that type. The cursor, the selections, the modal
state and the edit-buffer undo move off Pane into Text.zig, Pane holds
them as its body, and the edit and normal-mode operations take the Text
they edit. Nothing changes in behaviour; this is the step that lets the
tag become a second Text.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 11 insertions, 11 deletions

diff --git a/src/Output.zig b/src/Output.zig
index 6df2fd34..6e1765a7 100644
--- a/src/Output.zig
+++ b/src/Output.zig
@@ -402,7 +402,7 @@ pub fn open(p: *Pardes, id: usize, dir: []const u8, from: Origin, arg: []const u
     errdefer p.gpa.destroy(history);
     const pane = try p.newDocPane(id);
     pane.file = .{ .path = path, .content = content, .output = out, .history = history };
-    pane.cur_pinned = true;
+    pane.body.cur_pinned = true;
     return pane;
 }
 
@@ -737,20 +737,20 @@ pub fn openErrors(p: *Pardes, id: usize, content: []u8) !void {
 
 pub fn resetBody(p: *Pardes, pane: *Pane) void {
     pane.file.?.scroll = 0;
-    pane.cur_row = 0;
-    pane.cur_col = 0;
-    pane.cur_pinned = true;
+    pane.body.cur_row = 0;
+    pane.body.cur_col = 0;
+    pane.body.cur_pinned = true;
     pane.hscroll = 0;
     pane.wrap_n = 0;
-    pane.msel = .{};
-    pane.vsel = .{};
-    pane.nsel = 0;
+    pane.body.msel = .{};
+    pane.body.vsel = .{};
+    pane.body.nsel = 0;
     pane.nsel_snap = 0;
-    pane.select = false;
+    pane.body.select = false;
     pane.sel = @splat(.{});
-    pane.sticky_col = -1;
-    pane.append_at = null;
-    pane.normal.clear();
+    pane.body.sticky_col = -1;
+    pane.body.append_at = null;
+    pane.body.normal.clear();
     pane.look_at = null;
     if (p.look_hover_wait) |wait| if (wait.serial == pane.serial) {
         p.look_hover_wait = null;