From 370bcd5a4184c491870b296e45dfd7c7236f3511 Mon Sep 17 00:00:00 2001
From: Bent Witthold <bent@working-copy.org>
Date: Sat, 6 Dec 2025 10:36:21 +0100
Subject: [PATCH] Retrieve QUndoStack pointer from core and create actions for
 undo and redo.

---
 mainwindow.cpp | 15 +++++++++++++++
 mainwindow.h   |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/mainwindow.cpp b/mainwindow.cpp
index 9dc7987..f8fdb53 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -3,6 +3,7 @@
 
 #include <QCloseEvent>
 #include <QMessageBox>
+#include <QUndoStack>
 
 #include "../../ApplicationConfig.h"
 #include "data/settingshandler.h"
@@ -196,6 +197,20 @@ void MainWindow::createFileActions() {
 }
 
 void MainWindow::createEditActions() {
+  m_modelUndoStack = m_core->getModUndoStack();
+
+  connect(m_modelUndoStack.get(), SIGNAL(cleanChanged(bool)), this,
+          SLOT(onCleanStateChanged(bool)));
+  m_undoAct.reset(m_modelUndoStack->createUndoAction(this, tr("&Undo")));
+  m_undoAct->setShortcuts(QKeySequence::Undo);
+  m_undoAct->setStatusTip(tr("Undo the last operation"));
+  ui->menu_Edit->addAction(m_undoAct.get());
+
+  m_redoAct.reset(m_modelUndoStack->createRedoAction(this, tr("&Redo")));
+  m_redoAct->setShortcuts(QKeySequence::Redo);
+  m_redoAct->setStatusTip(tr("Redo the last operation"));
+  ui->menu_Edit->addAction(m_redoAct.get());
+
   m_cutAct = make_unique<QAction>(tr("Cu&t"), this);
   m_cutAct->setShortcuts(QKeySequence::Cut);
   m_cutAct->setStatusTip(
diff --git a/mainwindow.h b/mainwindow.h
index 40ea7ec..de54266 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -7,6 +7,7 @@ QT_BEGIN_NAMESPACE
 
 class QAbstractItemModel;
 
+class QUndoStack;
 namespace Ui {
 class MainWindow;
 }
@@ -43,6 +44,7 @@ class MainWindow : public QMainWindow {
   // GenericCore* m_core;
   unique_ptr<GenericCore> m_core;
   shared_ptr<QAbstractItemModel> m_tableModel;
+  shared_ptr<QUndoStack> m_modelUndoStack;
 
   /// File actions
   unique_ptr<QAction> m_newFileAct;