forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.8
295d3b1b5d
Extend UCS support to in-viewport (MSPACE) editing through the existing single-converter structure: one active_ucs drives every UCS-aware system, now in the Model tab AND inside a floating viewport. - Single predicate DocumentTab::editing_model_space() (Model tab or active viewport) replaces the model-only gate in ucs_wire_affine, ucs_rotation_angle, ucs_grid_basis, viewcube_ucs_mat, the coordinate readout and the cursor-plane pick. - Per-viewport UCS: refresh_active_ucs() sets active_ucs to the pane's UCS on every transition (the entered viewport's own UCS from its ucs_origin/x_axis/y_axis/ucs_per_viewport fields, the header model UCS in the Model tab, none in plain paper); persist_active_ucs() writes changes back to the viewport entity or the header so they round-trip. Wired into EnterViewport/ExitViewport, layout switch, load and the UCS command. - Visuals: grid_views now returns each pane's handle so every content viewport's grid aligns to its own UCS; the UCS icon draws inside the active viewport projected through the viewport camera. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>