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, 24 insertions, 24 deletions

diff --git a/src/pdf_view.zig b/src/pdf_view.zig
index 721dac5a..92a05618 100644
--- a/src/pdf_view.zig
+++ b/src/pdf_view.zig
@@ -1911,7 +1911,7 @@ pub fn openPane(
     errdefer state.deinit(core.pdf_gpa);
     const pane = try core.newDocPane(id);
     pane.pdf = state;
-    pane.cur_pinned = true;
+    pane.body.cur_pinned = true;
     if (filesystem.localPath(path) != null) core.emit(.{ .watch = .{ .pane = @intCast(id), .on = true } });
     return pane;
 }
@@ -1967,15 +1967,15 @@ fn refreshCleanSections(core: *pardes.Pardes, state: *State) void {
     File.setContent(core, file, content);
     const rows = File.lineCount(file.content);
     file.scroll = @min(file.scroll, rows - 1);
-    const row = @min(@as(usize, @intCast(@max(0, result.cur_row))), rows - 1);
-    result.cur_row = @intCast(row);
-    result.cur_col = @intCast(@min(
-        @as(usize, @intCast(@max(0, result.cur_col))),
+    const row = @min(@as(usize, @intCast(@max(0, result.body.cur_row))), rows - 1);
+    result.body.cur_row = @intCast(row);
+    result.body.cur_col = @intCast(@min(
+        @as(usize, @intCast(@max(0, result.body.cur_col))),
         modal.lineSlice(file.content, row).len,
     ));
-    result.msel.active = false;
-    result.vsel.active = false;
-    result.nsel = 0;
+    result.body.msel.active = false;
+    result.body.vsel.active = false;
+    result.body.nsel = 0;
     state.sections_output.?.revision = file.revision;
 }
 
@@ -2003,11 +2003,11 @@ fn rearmCleanSections(
     if (file.revision != remembered.revision) return false;
 
     file.scroll = 0;
-    result.cur_row = 0;
-    result.cur_col = 0;
-    result.msel.active = false;
-    result.vsel.active = false;
-    result.nsel = 0;
+    result.body.cur_row = 0;
+    result.body.cur_col = 0;
+    result.body.msel.active = false;
+    result.body.vsel.active = false;
+    result.body.nsel = 0;
     pane.search_pane = remembered.pane;
     pane.search_row = null;
     look.armLookWalk(core, remembered.pane);
@@ -2110,11 +2110,11 @@ pub fn lookSection(
 }
 
 pub fn resetPageChrome(pane: *pardes.Pane) void {
-    pane.cur_row = 0;
-    pane.cur_col = 0;
-    pane.vsel.active = false;
-    pane.msel.active = false;
-    pane.nsel = 0;
+    pane.body.cur_row = 0;
+    pane.body.cur_col = 0;
+    pane.body.vsel.active = false;
+    pane.body.msel.active = false;
+    pane.body.nsel = 0;
 }
 
 pub fn activatePage(
@@ -2454,12 +2454,12 @@ pub fn pointerRelease(
         const dragged = grid_selection.c0 != grid_selection.c1 or
             grid_selection.r0 != grid_selection.r1;
         if (!dragged) state.clearSelection(core.pdf_gpa);
-        pane.cur_pinned = true;
-        pane.mode = .normal;
-        pane.msel.active = false;
-        pane.vsel.active = false;
-        pane.normal.clear();
-        pane.nsel = 0;
+        pane.body.cur_pinned = true;
+        pane.body.mode = .normal;
+        pane.body.msel.active = false;
+        pane.body.vsel.active = false;
+        pane.body.normal.clear();
+        pane.body.nsel = 0;
         state.clearDrag();
         return .{};
     }