Celtic Minstrel
4359bb558e
git-svn-id: http://openexile.googlecode.com/svn/trunk@82 4ebdad44-0ea0-11de-aab3-ff745001d230
41 lines
659 B
C++
41 lines
659 B
C++
/*
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* undo.cpp
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* BoE
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*
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* Created by Celtic Minstrel on 29/05/09.
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*
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*/
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#include "undo.h"
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cUndoList::cUndoList(){
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lastSave = cur = theList.begin();
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}
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size_t cUndoList::maxUndoSize = 0;
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//TODO: These functions should have error checking to ensure they do not access an out of bounds action
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void cUndoList::undo(){
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(*cur)->undo();
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cur--;
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}
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void cUndoList::redo(){
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cur++;
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(*cur)->redo();
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}
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void cUndoList::save(){
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lastSave = cur;
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}
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void cUndoList::revert(){
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while(cur != lastSave) undo();
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}
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void cUndoList::add(cAction* what){
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theList.push_back(what);
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num_actions++;
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while(num_actions > maxUndoSize) theList.pop_front(), num_actions--;
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}
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