Qt/Debugger: Implement "Registers" window

Source/Core/DolphinQt2/Debugger/RegisterWidget.h

@@ -0,0 +1,46 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+
+#include <QDockWidget>
+
+#include "Common/CommonTypes.h"
+#include "DolphinQt2/Debugger/RegisterColumn.h"
+
+class QTableWidget;
+class QCloseEvent;
+
+class RegisterWidget : public QDockWidget
+{
+  Q_OBJECT
+public:
+  explicit RegisterWidget(QWidget* parent = nullptr);
+  ~RegisterWidget();
+
+signals:
+  void RequestTableUpdate();
+  void UpdateTable();
+  void UpdateValue(QTableWidgetItem* item);
+  void UpdateValueType(QTableWidgetItem* item);
+
+protected:
+  void closeEvent(QCloseEvent*) override;
+
+private:
+  void CreateWidgets();
+  void ConnectWidgets();
+  void PopulateTable();
+
+  void ShowContextMenu();
+  void OnItemChanged(QTableWidgetItem* item);
+
+  void AddRegister(int row, int column, RegisterType type, std::string register_name,
+                   std::function<u32()> get_reg, std::function<void(u32)> set_reg);
+
+  QTableWidget* m_table;
+  bool m_updating = false;
+};