Campbell Barton
651b8fb14e
- 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
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_BLENDER_UNDO_H__
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#define __BKE_BLENDER_UNDO_H__
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/** \file BKE_blender_undo.h
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* \ingroup bke
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct bContext;
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struct Scene;
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struct Main;
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struct MemFileUndoData;
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#define BKE_UNDO_STR_MAX 64
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struct MemFileUndoData *BKE_memfile_undo_encode(struct Main *bmain, struct MemFileUndoData *mfu_prev);
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bool BKE_memfile_undo_decode(struct MemFileUndoData *mfu, struct bContext *C);
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void BKE_memfile_undo_free(struct MemFileUndoData *mfu);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BKE_BLENDER_UNDO_H__ */
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