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feat(sysvars): persist Ortho, running OSNAP and Isolate in the drawing

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Ortho and the running object-snap set were app-global (settings.txt only) and
Isolate/Hide was a session-only view state, so none survived save/reopen and
none were per-drawing. Bind all three to the file like AutoCAD:

- Ortho -> header.ortho_mode ($ORTHOMODE); running OSNAP <-> header
  .object_snap_mode ($OSMODE bitmask) via a new SnapType<->bit map in settings
  (osmode_from_snaps / snaps_from_osmode, round-trip tested). The header is the
  per-drawing store, live state mirrors the active drawing: adopt header->live
  on open and tab-switch, stamp live->header on save and when leaving a tab, a
  fresh drawing inherits the current values, and SETVAR ORTHOMODE/OSMODE now
  also update the live state. settings.txt stays as the boot/new-drawing
  default; the per-file header overrides it on open.
- Isolate/Hide now set each entity's persisted invisible flag (DXF code 60,
  which acadrust round-trips in DXF and DWG) in addition to the session set;
  End Isolation clears it. The set is reseeded from invisible entities on load
  and after undo/redo, the commands are undoable and mark the tab dirty. The
  renderer already skipped invisible entities, so no render change was needed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-07-10 15:45:08 +03:00
commit da2c600953
7 changed files with 220 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/app/commands/layers.rs
View file

@ -444,7 +444,9 @@ impl OpenCADStudio {
.push_error("ISOLATEOBJECTS: select the objects to isolate first.");
} else {
let n = self.tabs[i].scene.selected.len();
self.push_undo_snapshot(i, "ISOLATEOBJECTS");
self.tabs[i].scene.isolate_selected();
self.tabs[i].dirty = true;
self.command_line.push_info(&format!(
"Isolated {n} object(s). UNISOLATEOBJECTS to restore."
));
@ -458,7 +460,9 @@ impl OpenCADStudio {
.push_error("HIDEOBJECTS: select the objects to hide first.");
} else {
let n = self.tabs[i].scene.selected.len();
self.push_undo_snapshot(i, "HIDEOBJECTS");
self.tabs[i].scene.hide_selected();
self.tabs[i].dirty = true;
self.command_line
.push_info(&format!("Hid {n} object(s). UNISOLATEOBJECTS to restore."));
}
@ -467,7 +471,9 @@ impl OpenCADStudio {
// UNISOLATEOBJECTS — bring back everything hidden by Isolate / Hide
"UNISOLATEOBJECTS" => {
if self.tabs[i].scene.is_isolation_active() {
self.push_undo_snapshot(i, "UNISOLATEOBJECTS");
self.tabs[i].scene.end_isolation();
self.tabs[i].dirty = true;
self.command_line
.push_info("Isolation ended — all objects shown.");
} else {