76 lines
2 KiB
C++
76 lines
2 KiB
C++
/*
|
|
* InfiniPaint
|
|
* Copyright (C) 2025-2026 Yousef Khadadeh
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "UndoManager.hpp"
|
|
#include <iostream>
|
|
|
|
// NOTE: It might be possible to track net objects through their raw pointer values instead of NetObjIDs, as the NetObjID is just reassigned when moved, and it isn't reallocated.
|
|
|
|
bool UndoManager::can_undo() {
|
|
return !undoQueue.empty();
|
|
}
|
|
|
|
bool UndoManager::can_redo() {
|
|
return !redoQueue.empty();
|
|
}
|
|
|
|
void UndoManager::push(const UndoRedoPair& undoRedoPair) {
|
|
push_undo(undoRedoPair);
|
|
redoQueue.clear();
|
|
}
|
|
|
|
void UndoManager::push_undo(const UndoRedoPair& undoRedoPair) {
|
|
if(undoQueue.size() == queueLimit)
|
|
undoQueue.pop_front();
|
|
undoQueue.emplace_back(undoRedoPair);
|
|
}
|
|
|
|
void UndoManager::push_redo(const UndoRedoPair& undoRedoPair) {
|
|
if(redoQueue.size() == queueLimit)
|
|
redoQueue.pop_front();
|
|
redoQueue.emplace_back(undoRedoPair);
|
|
}
|
|
|
|
void UndoManager::undo() {
|
|
if(undoQueue.empty())
|
|
return;
|
|
if(!undoQueue.back().undo()) {
|
|
clear();
|
|
}
|
|
else {
|
|
push_redo(undoQueue.back());
|
|
undoQueue.pop_back();
|
|
}
|
|
}
|
|
|
|
void UndoManager::redo() {
|
|
if(redoQueue.empty())
|
|
return;
|
|
if(!redoQueue.back().redo()) {
|
|
clear();
|
|
}
|
|
else {
|
|
push_undo(redoQueue.back());
|
|
redoQueue.pop_back();
|
|
}
|
|
}
|
|
|
|
void UndoManager::clear() {
|
|
redoQueue.clear();
|
|
undoQueue.clear();
|
|
}
|