add 'Abstractions' option on window menu and a new dialog to handle abstractions (file-based and private). file-based part not implemented yet. get rid of the delete and clean methods of [abdefs]

remove ';' from list sent by [abdefs], show deleted abtractions when using 'clear' or interactive dialog

add [abdefs] object (methods: get, instances, del, clean) with an interactive dialog, add new element type for dialog_external

add warning for when there are more than two instances of the same abstraction (file-based and [ab]) being edited, fix for dirty visual markings

adapt canvas_getdir for ab instances, now they inherit ce_dir from root canvas. fix some implicit declarations and cast warnings

return a dummy object when creating [ab] objects during ab definitions loading, to prevent creation errors from being displayed. show the cycle that is causing the dependency problem when an ab object cannot to create

open instance canvas when first (empty) ab instance is created, dinamically created objects dont activate dirty flag, trigger initbang when saving current canvas

Jean-Michaël Celerier authored 4 years ago and Albert Gräf committed 4 years ago

Else this does not seem to build with MSVC 2019