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feat(settings): persist UI preferences across sessions (#68)

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DYN, ORTHO, POLAR, the polar increment, the grid toggle and the
object-snap configuration (OSNAP on/off, active snap modes, OTRACK)
reset to defaults on every launch. Persist them to a per-user
settings.txt, matching the existing recent-files / status-bar stores
(plain key=value, no serialization crate).

Settings load on boot and apply to live state; the update wrapper
snapshots them after each message and writes only on change, so a
toggle survives a restart without thrashing the file. LWT is left out
on purpose — it is a drawing header variable, not a UI preference.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-06-09 19:50:23 +03:00
commit ebf12780c5
3 changed files with 235 additions and 0 deletions
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13
src/app/mod.rs
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@ -8,6 +8,7 @@ mod layers;
mod mtext_editor;
mod model_ops;
mod properties;
mod settings;
mod text_inline;
mod update;
mod view;
@ -194,6 +195,9 @@ pub(super) struct OpenCADStudio {
cycle_candidates: Option<(iced::Point, Vec<acadrust::Handle>)>,
/// Which status-bar pills the user has chosen to show (persisted).
statusbar_config: crate::ui::statusbar_config::StatusBarConfig,
/// Last persisted user preferences (DYN/OSNAP/OTRACK/POLAR/…). Compared
/// after each message so a change is written to disk exactly once.
last_saved_settings: Option<settings::UserSettings>,
/// Whether Tangent snap was enabled before a tangent-pick command started.
pre_cmd_tangent: Option<bool>,
/// Orthogonal drawing constraint (F8): constrains picks to 0°/90°/180°/270°.
@ -1266,6 +1270,7 @@ impl OpenCADStudio {
isolate_popup_open: false,
selection_filter_popup_open: false,
statusbar_config: crate::ui::statusbar_config::StatusBarConfig::load(),
last_saved_settings: None,
clean_screen: false,
quick_properties: false,
selection_cycling: false,
@ -1471,6 +1476,14 @@ impl OpenCADStudio {
ds_dimtolj: "1".to_string(),
ds_dimtzin: "0".to_string(),
};
// Restore persisted UI preferences (DYN/OSNAP/OTRACK/POLAR/…) so they
// survive across sessions (issue #68). Seed `last_saved_settings` from
// the resulting state so the first change — not the boot — triggers a
// write.
if let Some(s) = settings::UserSettings::load() {
app.apply_settings(&s);
}
app.last_saved_settings = Some(app.current_settings());
app.sync_ribbon_layers();
app
}