TableView

The TableView component is used together with the !content keyword (the same pattern as if using a Window). The !content frame must be an autolayout with its orientation set to Vertical.

Converts to a NSTableView and will always be NSView-based and not cell-based. Since tables can be complex, it's generated as its own class. UsesAutomaticRowHeights should be set to true.

!options layers:

alternating when unhidden, adds alternating row background colours (UsesAlternatingRowBackgroundColors)
resize when unhidden, makes the columns resizable (AllowsColumnResizing)
multiselect when unhidden, allows the user to select multiple rows at once (AllowsMultipleSelection)
reorder when unhidden, allows the user to reorder columns (AllowsColumnReordering)

Columns

This is a frame that contains all the TableColumns. This frame must be set to AutoLayout and its orientation must be horizontal.

It's possible to hide the Columns frame to hide the columns headers in the table. In that case the NSTableView.HeaderView will be hidden (note: tables must always have table columns to work, even if they're hidden or it's just a single one).

TableColumn

The TableColumn component is a standard component within the toolkit and is mostly there for styling. It converts to NSTableColumn. All we need to do here is parse the characters of the Title text object and set the alignment to left/right/center.

Rows

Rows are components created by the designer. They must be an AutoLayout-based component with its orientation set to horizontal. In code generation, the row component will be converted to its own class, which the developer can add to the table. Each item in the row's autolayout is an NSView. TODO: Look up how this works exactly