pub struct ProblemHistory { /* private fields */ }Expand description
Undo/redo system
Implementations§
Source§impl ProblemHistory
impl ProblemHistory
Sourcepub fn push(&mut self, entry: HistoryEntry)
pub fn push(&mut self, entry: HistoryEntry)
Push new entry
Sourcepub fn undo(&mut self) -> Option<&HistoryEntry>
pub fn undo(&mut self) -> Option<&HistoryEntry>
Undo operation
Sourcepub fn redo(&mut self) -> Option<&HistoryEntry>
pub fn redo(&mut self) -> Option<&HistoryEntry>
Redo operation
Auto Trait Implementations§
impl Freeze for ProblemHistory
impl RefUnwindSafe for ProblemHistory
impl Send for ProblemHistory
impl Sync for ProblemHistory
impl Unpin for ProblemHistory
impl UnwindSafe for ProblemHistory
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T: ?Sized,
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