From 651b8fb14eb6ee5cbfa98bffe80a966a0753b14e Mon Sep 17 00:00:00 2001 From: Campbell Barton Date: Mon, 19 Mar 2018 14:17:59 +0100 Subject: Undo: unified undo system w/ linear history - Use a single undo history for all operations. - UndoType's are registered and poll the context to check if they should be used when performing an undo push. - Mode switching is used to ensure the state is correct before undo data is restored. - Some undo types accumulate changes (image & text editing) others store the state multiple times (with de-duplication). This is supported by checking UndoStack.mode `ACCUMULATE` / `STORE`. - Each undo step stores ID datablocks they use with utilities to help manage restoring correct ID's. Needed since global undo is now mixed with other modes undo. - Currently performs each undo step when going up/down history Previously this wasn't done, making history fail in some cases. This can be optimized to skip some combinations of undo steps. grease-pencil is an exception which has not been updated since it integrates undo into the draw-session. See D3113 --- source/blender/blenkernel/BKE_main.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'source/blender/blenkernel/BKE_main.h') diff --git a/source/blender/blenkernel/BKE_main.h b/source/blender/blenkernel/BKE_main.h index d8318bfcf5d..e224155726f 100644 --- a/source/blender/blenkernel/BKE_main.h +++ b/source/blender/blenkernel/BKE_main.h @@ -84,10 +84,12 @@ typedef struct Main { short minversionfile, minsubversionfile; uint64_t build_commit_timestamp; /* commit's timestamp from buildinfo */ char build_hash[16]; /* hash from buildinfo */ - short recovered; /* indicate the main->name (file) is the recovered one */ + char recovered; /* indicate the main->name (file) is the recovered one */ + /** All current ID's exist in the last memfile undo step. */ + char is_memfile_undo_written; BlendThumbnail *blen_thumb; - + struct Library *curlib; ListBase scene; ListBase library; -- cgit v1.2.3