forked from 1b-agent/opencadstudio-upstream
PanosandClaude Opus 5
5e271e2dbb
AutoCAD lets a plotter configuration carry user-defined sheets; a drawing then names them like any other media (`Roll_24_(609.60_x_1500.00_MM)`). The plot dialog now defines such sheets inline, under the Size row: name, width/height, unit, and the printable margins in that unit. Added sheets are selected at once, offered for every device after the device's own list, remembered in the plot config across sessions, and written to the layout with their own margins (a printer that reports the same size still wins with its hardware margins). A selected user-defined sheet can be removed; the sheet itself stays selectable in the drawing that uses it. `CustomPaper` / `Margins` live in the paper catalogue with serde support; `PlotDevice::margins_mm` consults the user's definitions. The Plot dialog's form helpers (button and field styles, dividers, `label : control` rows) move to `ui::style::form` so the next dialogs share them instead of copying. Tests: draft validation and seeding, catalogue naming of user sheets, device margins with user definitions, and dialog round-trips (add, select, persist, write, replace, remove, refuse an invalid size). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>