Implement the complete Block Definition dialog window launched via BLOCK
and BMAKE commands, featuring standard CAD layout, workflows, and entity
creation pipelines.
- Dialog UI & Layout:
- 2-column compact CAD grid with synchronized vertical heights (580 × 390px).
- Editable combobox with existing block names, invalid character validation,
and inline redefinition badge.
- Multi-line text editor widget for block descriptions (replacing single-line input).
- Quick Select (QSELECT) button integration restoring dialog state upon completion.
- Confirmation guard when attempting to redefine an existing block definition.
- Centered radio buttons, clean coordinate inputs, and accessible keyboard shortcuts.
- Base Point & On-Screen Workflow:
- BlockOnScreenCommand strictly enforces prompt sequencing: Base point is
prompted before object selection.
- Dynamically recalculates world_to_block and block_to_world affine transforms
when base point is specified on-screen, preventing stale (0,0,0) normalization.
- Supports Retain, Convert to block (INSERT placement), and Delete modes.
- Explode Enforcement:
- Guarded EXPLODE command to prevent decomposing blocks flagged as non-explodable.
- Dynamic Themed Icons:
- Added pick_point.svg, select_objects.svg, quick_select.svg, and warning_triangle.svg.
- Routed all icons through the semantic theming engine so line work (#B4B6B9)
and accents (#6DB7ED) adapt automatically to the active theme.
- Tests:
- Added unit tests for retain/convert/delete modes, redefinition, explodable flag,
on-screen base point transform recalculation, and command sequencing.
Add a searchable block palette with previews, file import, collision-safe nested definitions, and dependency/table-record import. Keep palette thumbnails current across drawing switches and block-definition edits.
Karim Jerbi