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feat(draw): Arc Continue command; 3-Point default

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Arc ribbon default + icon + dropdown order set to 3-Point. New ARC_CONT: tangent-continuing arc from the last line/arc endpoint, pick end only; Ctrl flips direction. Exit anchor recorded on commit (disambiguated by last pick) so chaining continues from the correct end.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-07-08 20:39:40 +03:00
commit c4fcfacb18
10 changed files with 212 additions and 13 deletions
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9
src/app/update/mod.rs
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@ -1751,8 +1751,17 @@ impl OpenCADStudio {
}
Message::SetModifiers { shift, ctrl } => {
let ctrl_changed = self.ctrl_down != ctrl;
self.shift_down = shift;
self.ctrl_down = ctrl;
// A live command may key its preview off Ctrl (arc-direction
// flip). Rebuild it at the current cursor so the flip shows
// without waiting for the next mouse move.
let i = self.active_tab;
if ctrl_changed && self.tabs[i].active_cmd.is_some() {
let p = self.tabs[i].last_cursor_screen;
return Task::done(Message::ViewportMove(p));
}
Task::none()
}