Qt: Add new cheat manager

src/duckstation-qt/cheatmanagerdialog.h

@@ -0,0 +1,71 @@
+#pragma once
+#include "core/cheats.h"
+#include "ui_cheatmanagerdialog.h"
+#include <QtCore/QTimer>
+#include <QtWidgets/QComboBox>
+#include <QtWidgets/QDialog>
+#include <QtWidgets/QLabel>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QTableWidget>
+#include <optional>
+
+class CheatManagerDialog : public QDialog
+{
+  Q_OBJECT
+
+public:
+  CheatManagerDialog(QWidget* parent);
+  ~CheatManagerDialog();
+
+protected:
+  void showEvent(QShowEvent* event);
+  void resizeEvent(QResizeEvent* event);
+
+private Q_SLOTS:
+  void resizeColumns();
+
+  CheatList* getCheatList() const;
+  void updateCheatList();
+  void saveCheatList();
+  void cheatListCurrentItemChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
+  void cheatListItemActivated(QTreeWidgetItem* item);
+  void cheatListItemChanged(QTreeWidgetItem* item, int column);
+  void activateCheat(u32 index);
+  void newCategoryClicked();
+  void addCodeClicked();
+  void editCodeClicked();
+  void deleteCodeClicked();
+  void activateCodeClicked();
+  void importClicked();
+  void exportClicked();
+
+  void addToWatchClicked();
+  void removeWatchClicked();
+  void scanCurrentItemChanged(QTableWidgetItem* current, QTableWidgetItem* previous);
+  void watchCurrentItemChanged(QTableWidgetItem* current, QTableWidgetItem* previous);
+  void scanItemChanged(QTableWidgetItem* item);
+  void watchItemChanged(QTableWidgetItem* item);
+  void updateScanValue();
+  void updateScanUi();
+
+private:
+  void setupAdditionalUi();
+  void connectUi();
+  void setUpdateTimerEnabled(bool enabled);
+  void updateResults();
+  void updateResultsValues();
+  void updateWatch();
+  void updateWatchValues();
+
+  QTreeWidgetItem* getItemForCheatIndex(u32 index) const;
+  int getSelectedCheatIndex() const;
+  int getSelectedResultIndex() const;
+  int getSelectedWatchIndex() const;
+
+  Ui::CheatManagerDialog m_ui;
+
+  MemoryScan m_scanner;
+  MemoryWatchList m_watch;
+
+  QTimer* m_update_timer = nullptr;
+};