table_column.md
In rswipl: Embed 'SWI'-'Prolog'

class table_column {#class-table_column}

Subclass of class table_slice, representing a column of a table object. Unlike class table_row, a column does not actually hold table_cell objects. It is used to store default alignment information on the column, address the column, find cells in the column (which actually uses the table <-row information to find the requested cell) and compute the layout of the column.

Probably the only interesting user-methods are ->halign, to et default alignment for this column and table ->delete: TableColumn to delete an entire column from a table object.

table_column<-alignment: {left,right,center,reference,stretch} Default alignment of cells. Refinement of table_slice <-alignment, deleting top/bottom from the value-set. <->halign provides the access to this method.

table_column->compute Compute dimensions of the column. Invoked by table->compute to set <-width and <-reference, after which table->compute assigns the column a <-position.
table_column->halign: {left,right,center,reference,stretch} Inherits description from: table_column-alignment
table_column->initialise: [{left,right,center,reference,stretch}] Initialises an empty table_column object from its alignment. Normally, a table_column is created using table <-column: index.
table_column->unlink Ensures the table_column object is nicely removed from the <-table.

table_column<-cell: int -> table_cell Cell at indicated row. Actually fetches the table <-row at the given index and using table_row <-cell to find the cell.
table_column<-halign: -> {left,right,center,reference,stretch} Inherits description from: table_column-alignment