on-event in snip%

Called to handle mouse events on the snip when this snip can handle events and when the snip has the keyboard focus. See on-char for information about the arguments. See also 'handles-events in get-flags.

• (send a-snip on-event dc x y editorx editory event) -> void
     dc : dc<%> object
     x : real number
     y : real number
     editorx : real number
     editory : real number
     event : mouse-event% object

  The x and y arguments are the snip's location in display coordinates. The editorx and editory arguments are the snip's location in editor coordinates. To get event's x location in snip coordinates, subtract x from (send event get-x).