All classes that are subclasses of output-record must implement methods for the following generic functions.
output-record-children [Generic Function]
Summary: Returns a fresh list of all the children of the output record record .
add-output-record [Generic Function]
Summary: Adds the new output record child to the output record record . The bounding rectangle for record and all its ancestors is updated accordingly.
The methods for the add-output-record will typically specialize only the record argument.
delete-output-record [Generic Function]
Arguments: child record &optional (errorp t )
Summary: Removes the output record child from the output record record . The bounding rectangle for record (and all its ancestors) is updated to account for the child having been removed.
If errorp is t (the default) and child is not contained within record , then an error is signaled.
The methods for the delete-output-record will typically specialize only the record argument.
clear-output-record [Generic Function]
Summary: Removes all of the children from the output record record , and resets the bounding rectangle of record to its initial state.
output-record-count [Generic Function]
Summary: Returns the number of children contained within the output record record .
map-over-output-records-containing-position[Generic Function]
Arguments: function record x y &optional x-offset y-offset
Summary: Maps over all of the children of the output record record that contain the point at ( x , y ), calling function on each one. function is a function of one argument, the record containing the point; it has dynamic extent.
If there are multiple records that contain the point and that overlap each other, map-over-output-records-containing-position hits the most recently inserted record first and the least recently inserted record last.
map-over-output-records-overlapping-region[Generic Function]
Arguments: function record region &optional x-offset y-offset
Summary: Maps over all of the children of the output record record that overlap the region region , calling function on each one. function is a function of one argument, the record overlapping the region; it has dynamic extent.
If there are multiple records that overlap the region and that overlap each other, map-over-output-records-overlapping-region hits the least recently inserted record first and the most recently inserted record last.