Harden grid deletion and BMK validation

2026-07-22 20:27:01 +02:00
parent ea61772e62
commit f8802fecdb
6 changed files with 300 additions and 12 deletions
@@ -38,9 +38,16 @@ Selection, keyboard movement, and editability checks run against this normalized
 - arrow keys: move selected cell in grid when not editing
 - type-to-edit: printable keys open edit mode and replace current display value with typed character
 - `Ctrl+Plus` / `Ctrl+Shift+Plus`: insert below the selected circuit or device context
+- `Delete`: delete the selected circuit or device context after confirmation

 For insertion, a circuit-level cell creates a reserve circuit directly after the selected circuit. A device-level cell creates a manual device row directly after the selected device. On the virtual `-frei-` row, or without a valid row selection, the shortcut creates a circuit at the end of the active section. Insertions use command history and never renumber existing equipment identifiers.

+For deletion, a circuit-level cell targets the complete circuit and a device-level cell targets only the device row. Deleting the last device requires an explicit choice between keeping the empty circuit as reserve, deleting the complete circuit, or cancelling. Delete commands are undoable and never renumber remaining circuits.
+
+## Equipment Identifier Validation
+
+Equipment identifiers are compared case-insensitively after trimming whitespace. A conflicting edit is highlighted before submission and cannot be committed. Existing conflicts are highlighted in the grid. Validation errors remain dismissible above the editor instead of replacing the complete workspace.
+
 ## `-frei-` Placeholder Behavior

 Each section has a trailing placeholder row showing `-frei-` in BMK column: