Undo system - Githubissues

cathoderaydude / Babel

A simple translation tool for on-screen text using Google Cloud Vision and Translate. Intended for translating emulated videogames and similar things.

MIT License

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Undo system #36

Open cathoderaydude opened 4 years ago

cathoderaydude commented 4 years ago

I realized an undo system is not a heavy lift, with how things are structured right now. List<>s are positional, so we can do:

List<List> UndoStack
On user action, push the current PhraseRects onto UndoStack and set UndoPoint = UndoStack.Count()
On user undo, move UndoPoint back and PhraseRects = UndoStack[UndoPoint]
When user takes another action, delete everything after UndoPoint