diff options
author | Campbell Barton <ideasman42@gmail.com> | 2018-03-19 16:17:59 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2018-03-31 21:40:37 +0300 |
commit | 651b8fb14eb6ee5cbfa98bffe80a966a0753b14e (patch) | |
tree | 2281978509d82a25fb5fbf586f34335e3606442d /source/blender/blenloader/BLO_undofile.h | |
parent | 91d0825b5556150c017dad767f7971bb6a731aec (diff) |
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
Diffstat (limited to 'source/blender/blenloader/BLO_undofile.h')
-rw-r--r-- | source/blender/blenloader/BLO_undofile.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/source/blender/blenloader/BLO_undofile.h b/source/blender/blenloader/BLO_undofile.h index d3c0130a63b..b713b963056 100644 --- a/source/blender/blenloader/BLO_undofile.h +++ b/source/blender/blenloader/BLO_undofile.h @@ -33,6 +33,8 @@ * \ingroup blenloader */ +struct Scene; + typedef struct { void *next, *prev; const char *buf; @@ -47,6 +49,12 @@ typedef struct MemFile { size_t size; } MemFile; +typedef struct MemFileUndoData { + char filename[1024]; /* FILE_MAX */ + MemFile memfile; + size_t undo_size; +} MemFileUndoData; + /* actually only used writefile.c */ extern void memfile_chunk_add(MemFile *compare, MemFile *current, const char *buf, unsigned int size); @@ -54,5 +62,9 @@ extern void memfile_chunk_add(MemFile *compare, MemFile *current, const char *bu extern void BLO_memfile_free(MemFile *memfile); extern void BLO_memfile_merge(MemFile *first, MemFile *second); -#endif +/* utilities */ +extern struct Main *BLO_memfile_main_get(struct MemFile *memfile, struct Main *bmain, struct Scene **r_scene); +extern bool BLO_memfile_write_file(struct MemFile *memfile, const char *filename); + +#endif /* __BLO_UNDOFILE_H__ */ |