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UndoRedo extension::

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has_undo_snapshot(timestamp) to query whether one can undo to a snapshot
with a specific timestamp. Useful for notifications, that want to Undo
a specific operation, to verify whether such operation is still valid.
This commit is contained in:
Vojtech Bubnik 2020-12-14 16:22:40 +01:00
parent 7b9f2093bb
commit d70d54d4d3
2 changed files with 9 additions and 0 deletions
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src/slic3r/Utils/UndoRedo.hpp
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@ -107,6 +107,8 @@ public:
// To be queried to enable / disable the Undo / Redo buttons at the UI.
bool has_undo_snapshot() const;
bool has_redo_snapshot() const;
// To query whether one can undo to a snapshot. Useful for notifications, that want to Undo a specific operation.
bool has_undo_snapshot(size_t time_to_load) const;
// Roll back the time. If time_to_load is SIZE_MAX, the previous snapshot is activated.
// Undoing an action may need to take a snapshot of the current application state, so that redo to the current state is possible.