Debugger: Extract custom menu bar as its own class

pcsx2-qt/CMakeLists.txt

@@ -196,6 +196,8 @@ target_sources(pcsx2-qt PRIVATE
 	Debugger/Docking/DockLayout.h
 	Debugger/Docking/DockManager.cpp
 	Debugger/Docking/DockManager.h
+	Debugger/Docking/DockMenuBar.cpp
+	Debugger/Docking/DockMenuBar.h
 	Debugger/Docking/DockTables.cpp
 	Debugger/Docking/DockTables.h
 	Debugger/Docking/DockUtils.cpp

pcsx2-qt/Debugger/DebuggerWindow.cpp

@@ -112,7 +112,7 @@ DebuggerWindow::DebuggerWindow(QWidget* parent)
 
 	QMenuBar* menu_bar = menuBar();
 
-	setMenuWidget(m_dock_manager->createLayoutSwitcher(menu_bar));
+	setMenuWidget(m_dock_manager->createMenuBar(menu_bar));
 
 	Host::RunOnCPUThread([]() {
 		R5900SymbolImporter.OnDebuggerOpened();

pcsx2-qt/Debugger/Docking/DockManager.cpp

@@ -25,7 +25,6 @@
 #include <QtCore/QTimer>
 #include <QtCore/QtTranslation>
 #include <QtWidgets/QMessageBox>
-#include <QtWidgets/QPushButton>
 
 DockManager::DockManager(QObject* parent)
 	: QObject(parent)
@@ -33,9 +32,6 @@ DockManager::DockManager(QObject* parent)
 	QTimer* autosave_timer = new QTimer(this);
 	connect(autosave_timer, &QTimer::timeout, this, &DockManager::saveCurrentLayout);
 	autosave_timer->start(60 * 1000);
-
-	m_blink_timer = new QTimer(this);
-	connect(m_blink_timer, &QTimer::timeout, this, &DockManager::layoutSwitcherUpdateBlink);
 }
 
 void DockManager::configureDockingSystem()
@@ -144,17 +140,13 @@ void DockManager::switchToLayout(DockLayout::Index layout_index, bool blink_tab)
 			layout.thaw();
 
 			int tab_index = static_cast<int>(layout_index);
-			if (m_switcher && tab_index >= 0 && tab_index < m_plus_tab_index)
+			if (m_menu_bar && tab_index >= 0)
-			{
+				m_menu_bar->onCurrentLayoutChanged(layout_index);
-				m_ignore_current_tab_changed = true;
-				m_switcher->setCurrentIndex(tab_index);
-				m_ignore_current_tab_changed = false;
-			}
 		}
 	}
 
 	if (blink_tab)
-		layoutSwitcherStartBlink();
+		m_menu_bar->startBlink(m_current_layout);
 }
 
 bool DockManager::switchToLayoutWithCPU(BreakPointCpu cpu, bool blink_tab)
@@ -476,168 +468,195 @@ void DockManager::createWindowsMenu(QMenu* menu)
 		menu->addAction(toggle.action);
 }
 
-QWidget* DockManager::createLayoutSwitcher(QWidget* menu_bar)
+QWidget* DockManager::createMenuBar(QWidget* original_menu_bar)
 {
-	QWidget* container = new QWidget;
+	pxAssert(!m_menu_bar);
 
-	QHBoxLayout* layout = new QHBoxLayout;
+	m_menu_bar = new DockMenuBar(original_menu_bar);
-	layout->setContentsMargins(0, 2, 2, 0);
-	container->setLayout(layout);
 
-	QWidget* menu_wrapper = new QWidget;
+	connect(m_menu_bar, &DockMenuBar::currentLayoutChanged, this, [this](DockLayout::Index layout_index) {
-	menu_wrapper->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
+		if (layout_index >= m_layouts.size())
-	layout->addWidget(menu_wrapper);
+			return;
 
-	QHBoxLayout* menu_layout = new QHBoxLayout;
+		switchToLayout(layout_index);
-	menu_layout->setContentsMargins(0, 4, 0, 4);
+	});
-	menu_wrapper->setLayout(menu_layout);
+	connect(m_menu_bar, &DockMenuBar::newButtonClicked, this, &DockManager::newLayoutClicked);
-
+	connect(m_menu_bar, &DockMenuBar::layoutMoved, this, &DockManager::layoutSwitcherTabMoved);
-	menu_layout->addWidget(menu_bar);
+	connect(m_menu_bar, &DockMenuBar::lockButtonToggled, this, &DockManager::setLayoutLockedAndSaveSetting);
-
+	connect(m_menu_bar, &DockMenuBar::layoutSwitcherContextMenuRequested,
-	m_switcher = new QTabBar;
+		this, &DockManager::openLayoutSwitcherContextMenu);
-	m_switcher->setContentsMargins(0, 0, 0, 0);
-	m_switcher->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
-	m_switcher->setContextMenuPolicy(Qt::CustomContextMenu);
-	m_switcher->setMovable(true);
-	layout->addWidget(m_switcher);
 
 	updateLayoutSwitcher();
 
-	connect(m_switcher, &QTabBar::tabMoved, this, &DockManager::layoutSwitcherTabMoved);
-	connect(m_switcher, &QTabBar::customContextMenuRequested, this, &DockManager::layoutSwitcherContextMenu);
-
-	QWidget* spacer = new QWidget;
-	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
-	layout->addWidget(spacer);
-
 	bool layout_locked = Host::GetBaseBoolSettingValue("Debugger/UserInterface", "LayoutLocked", true);
+	setLayoutLocked(layout_locked, false);
 
-	QPushButton* lock_layout_toggle = new QPushButton;
+	return m_menu_bar;
-	lock_layout_toggle->setCheckable(true);
-	lock_layout_toggle->setChecked(layout_locked);
-	lock_layout_toggle->setFlat(true);
-	connect(lock_layout_toggle, &QPushButton::toggled, this, [this, lock_layout_toggle](bool checked) {
-		setLayoutLocked(checked, lock_layout_toggle, true);
-	});
-	layout->addWidget(lock_layout_toggle);
-
-	setLayoutLocked(layout_locked, lock_layout_toggle, false);
-
-	return container;
 }
 
 void DockManager::updateLayoutSwitcher()
 {
-	if (!m_switcher)
+	if (m_menu_bar)
-		return;
+		m_menu_bar->updateLayoutSwitcher(m_current_layout, m_layouts);
-
-	disconnect(m_tab_connection);
-
-	for (int i = m_switcher->count(); i > 0; i--)
-		m_switcher->removeTab(i - 1);
-
-	for (DockLayout& layout : m_layouts)
-	{
-		const char* cpu_name = DebugInterface::cpuName(layout.cpu());
-		QString tab_name = QString("%1 (%2)").arg(layout.name()).arg(cpu_name);
-		m_switcher->addTab(tab_name);
-	}
-
-	m_plus_tab_index = m_switcher->addTab("+");
-	m_current_tab_index = m_current_layout;
-
-	if (m_current_layout != DockLayout::INVALID_INDEX)
-		m_switcher->setCurrentIndex(m_current_layout);
-
-	// If we don't have any layouts, the currently selected tab will never be
-	// changed, so we respond to all clicks instead.
-	if (!m_layouts.empty())
-		m_tab_connection = connect(m_switcher, &QTabBar::currentChanged, this, &DockManager::layoutSwitcherTabChanged);
-	else
-		m_tab_connection = connect(m_switcher, &QTabBar::tabBarClicked, this, &DockManager::layoutSwitcherTabChanged);
-
-	layoutSwitcherStopBlink();
 }
 
-void DockManager::layoutSwitcherTabChanged(int index)
+void DockManager::newLayoutClicked()
 {
-	// Prevent recursion.
+	// The plus button has just been made the current tab, so set it back to the
-	if (m_ignore_current_tab_changed)
+	// one corresponding to the current layout again.
-		return;
+	m_menu_bar->onCurrentLayoutChanged(m_current_layout);
 
-	if (index == m_plus_tab_index)
+	auto name_validator = [this](const QString& name) {
+		return !hasNameConflict(name, DockLayout::INVALID_INDEX);
+	};
+
+	bool can_clone_current_layout = m_current_layout != DockLayout::INVALID_INDEX;
+
+	QPointer<LayoutEditorDialog> dialog = new LayoutEditorDialog(
+		name_validator, can_clone_current_layout, g_debugger_window);
+
+	if (dialog->exec() == QDialog::Accepted && name_validator(dialog->name()))
 	{
-		if (m_current_tab_index >= 0 && m_current_tab_index < m_plus_tab_index)
+		DockLayout::Index new_layout = DockLayout::INVALID_INDEX;
+
+		const auto [mode, index] = dialog->initialState();
+		switch (mode)
 		{
-			m_ignore_current_tab_changed = true;
+			case LayoutEditorDialog::DEFAULT_LAYOUT:
-			m_switcher->setCurrentIndex(m_current_tab_index);
+			{
-			m_ignore_current_tab_changed = false;
+				const DockTables::DefaultDockLayout& default_layout = DockTables::DEFAULT_DOCK_LAYOUTS.at(index);
+				new_layout = createLayout(dialog->name(), dialog->cpu(), false, default_layout.name);
+				break;
+			}
+			case LayoutEditorDialog::BLANK_LAYOUT:
+			{
+				new_layout = createLayout(dialog->name(), dialog->cpu(), false);
+				break;
+			}
+			case LayoutEditorDialog::CLONE_LAYOUT:
+			{
+				if (m_current_layout == DockLayout::INVALID_INDEX)
+					break;
+
+				DockLayout::Index old_layout = m_current_layout;
+
+				// Freeze the current layout so we can copy the geometry.
+				switchToLayout(DockLayout::INVALID_INDEX);
+
+				new_layout = createLayout(dialog->name(), dialog->cpu(), false, m_layouts.at(old_layout));
+				break;
+			}
 		}
 
-		auto name_validator = [this](const QString& name) {
+		if (new_layout != DockLayout::INVALID_INDEX)
-			return !hasNameConflict(name, DockLayout::INVALID_INDEX);
-		};
-
-		bool can_clone_current_layout = m_current_layout != DockLayout::INVALID_INDEX;
-
-		QPointer<LayoutEditorDialog> dialog = new LayoutEditorDialog(
-			name_validator, can_clone_current_layout, g_debugger_window);
-
-		if (dialog->exec() == QDialog::Accepted && name_validator(dialog->name()))
 		{
-			DockLayout::Index new_layout = DockLayout::INVALID_INDEX;
-
-			const auto [mode, index] = dialog->initialState();
-			switch (mode)
-			{
-				case LayoutEditorDialog::DEFAULT_LAYOUT:
-				{
-					const DockTables::DefaultDockLayout& default_layout = DockTables::DEFAULT_DOCK_LAYOUTS.at(index);
-					new_layout = createLayout(dialog->name(), dialog->cpu(), false, default_layout.name);
-					break;
-				}
-				case LayoutEditorDialog::BLANK_LAYOUT:
-				{
-					new_layout = createLayout(dialog->name(), dialog->cpu(), false);
-					break;
-				}
-				case LayoutEditorDialog::CLONE_LAYOUT:
-				{
-					if (m_current_layout == DockLayout::INVALID_INDEX)
-						return;
-
-					DockLayout::Index old_layout = m_current_layout;
-
-					// Freeze the current layout so we can copy the geometry.
-					switchToLayout(DockLayout::INVALID_INDEX);
-
-					new_layout = createLayout(dialog->name(), dialog->cpu(), false, m_layouts.at(old_layout));
-					break;
-				}
-			}
-
 			updateLayoutSwitcher();
 			switchToLayout(new_layout);
 		}
-
-		delete dialog.get();
 	}
-	else
-	{
-		DockLayout::Index layout_index = static_cast<DockLayout::Index>(index);
-		if (layout_index < 0 || layout_index >= m_layouts.size())
-			return;
 
-		switchToLayout(layout_index);
+	delete dialog.get();
-		m_current_tab_index = index;
-	}
 }
 
-void DockManager::layoutSwitcherTabMoved(int from, int to)
+void DockManager::openLayoutSwitcherContextMenu(const QPoint& pos, QTabBar* layout_switcher)
 {
-	DockLayout::Index from_index = static_cast<DockLayout::Index>(from);
+	DockLayout::Index layout_index = static_cast<DockLayout::Index>(layout_switcher->tabAt(pos));
-	DockLayout::Index to_index = static_cast<DockLayout::Index>(to);
+	if (layout_index >= m_layouts.size())
+		return;
 
+	DockLayout& layout = m_layouts[layout_index];
+
+	QMenu* menu = new QMenu(layout_switcher);
+	menu->setAttribute(Qt::WA_DeleteOnClose);
+
+	QAction* edit_action = menu->addAction(tr("Edit Layout"));
+	connect(edit_action, &QAction::triggered, [this, layout_index]() {
+		editLayoutClicked(layout_index);
+	});
+
+	QAction* reset_action = menu->addAction(tr("Reset Layout"));
+	reset_action->setEnabled(layout.canReset());
+	reset_action->connect(reset_action, &QAction::triggered, [this, layout_index]() {
+		resetLayoutClicked(layout_index);
+	});
+
+	QAction* delete_action = menu->addAction(tr("Delete Layout"));
+	connect(delete_action, &QAction::triggered, [this, layout_index]() {
+		deleteLayoutClicked(layout_index);
+	});
+
+	menu->popup(layout_switcher->mapToGlobal(pos));
+}
+
+void DockManager::editLayoutClicked(DockLayout::Index layout_index)
+{
+	if (layout_index >= m_layouts.size())
+		return;
+
+	DockLayout& layout = m_layouts[layout_index];
+
+	auto name_validator = [this, layout_index](const QString& name) {
+		return !hasNameConflict(name, layout_index);
+	};
+
+	QPointer<LayoutEditorDialog> dialog = new LayoutEditorDialog(
+		layout.name(), layout.cpu(), name_validator, g_debugger_window);
+
+	if (dialog->exec() != QDialog::Accepted || !name_validator(dialog->name()))
+		return;
+
+	layout.setName(dialog->name());
+	layout.setCpu(dialog->cpu());
+
+	layout.save(layout_index);
+
+	delete dialog.get();
+
+	updateLayoutSwitcher();
+}
+
+void DockManager::resetLayoutClicked(DockLayout::Index layout_index)
+{
+	if (layout_index >= m_layouts.size())
+		return;
+
+	DockLayout& layout = m_layouts[layout_index];
+	if (!layout.canReset())
+		return;
+
+	QString text = tr("Are you sure you want to reset layout '%1'?").arg(layout.name());
+	if (QMessageBox::question(g_debugger_window, tr("Confirmation"), text) != QMessageBox::Yes)
+		return;
+
+	bool current_layout = layout_index == m_current_layout;
+
+	if (current_layout)
+		switchToLayout(DockLayout::INVALID_INDEX);
+
+	layout.reset();
+	layout.save(layout_index);
+
+	if (current_layout)
+		switchToLayout(layout_index);
+}
+
+void DockManager::deleteLayoutClicked(DockLayout::Index layout_index)
+{
+	if (layout_index >= m_layouts.size())
+		return;
+
+	DockLayout& layout = m_layouts[layout_index];
+
+	QString text = tr("Are you sure you want to delete layout '%1'?").arg(layout.name());
+	if (QMessageBox::question(g_debugger_window, tr("Confirmation"), text) != QMessageBox::Yes)
+		return;
+
+	deleteLayout(layout_index);
+	updateLayoutSwitcher();
+}
+
+void DockManager::layoutSwitcherTabMoved(DockLayout::Index from_index, DockLayout::Index to_index)
+{
 	if (from_index >= m_layouts.size() || to_index >= m_layouts.size())
 	{
 		// This happens when the user tries to move a layout to the right of the
@@ -660,135 +679,6 @@ void DockManager::layoutSwitcherTabMoved(int from, int to)
 		m_current_layout = from_index;
 }
 
-void DockManager::layoutSwitcherContextMenu(QPoint pos)
-{
-	DockLayout::Index layout_index = static_cast<DockLayout::Index>(m_switcher->tabAt(pos));
-	if (layout_index >= m_layouts.size())
-		return;
-
-	DockLayout& layout = m_layouts[layout_index];
-
-	QMenu* menu = new QMenu(m_switcher);
-	menu->setAttribute(Qt::WA_DeleteOnClose);
-
-	QAction* edit_action = menu->addAction(tr("Edit Layout"));
-	connect(edit_action, &QAction::triggered, [this, layout_index]() {
-		if (layout_index >= m_layouts.size())
-			return;
-
-		DockLayout& layout = m_layouts[layout_index];
-
-		auto name_validator = [this, layout_index](const QString& name) {
-			return !hasNameConflict(name, layout_index);
-		};
-
-		QPointer<LayoutEditorDialog> dialog = new LayoutEditorDialog(
-			layout.name(), layout.cpu(), name_validator, g_debugger_window);
-
-		if (dialog->exec() != QDialog::Accepted || !name_validator(dialog->name()))
-			return;
-
-		layout.setName(dialog->name());
-		layout.setCpu(dialog->cpu());
-
-		layout.save(layout_index);
-
-		delete dialog.get();
-
-		updateLayoutSwitcher();
-	});
-
-	QAction* reset_action = menu->addAction(tr("Reset Layout"));
-	reset_action->setEnabled(layout.canReset());
-	reset_action->connect(reset_action, &QAction::triggered, [this, layout_index]() {
-		if (layout_index >= m_layouts.size())
-			return;
-
-		DockLayout& layout = m_layouts[layout_index];
-		if (!layout.canReset())
-			return;
-
-		QString text = tr("Are you sure you want to reset layout '%1'?").arg(layout.name());
-		if (QMessageBox::question(g_debugger_window, tr("Confirmation"), text) != QMessageBox::Yes)
-			return;
-
-		bool current_layout = layout_index == m_current_layout;
-
-		if (current_layout)
-			switchToLayout(DockLayout::INVALID_INDEX);
-
-		layout.reset();
-		layout.save(layout_index);
-
-		if (current_layout)
-			switchToLayout(layout_index);
-	});
-
-	QAction* delete_action = menu->addAction(tr("Delete Layout"));
-	connect(delete_action, &QAction::triggered, [this, layout_index]() {
-		if (layout_index >= m_layouts.size())
-			return;
-
-		DockLayout& layout = m_layouts[layout_index];
-
-		QString text = tr("Are you sure you want to delete layout '%1'?").arg(layout.name());
-		if (QMessageBox::question(g_debugger_window, tr("Confirmation"), text) != QMessageBox::Yes)
-			return;
-
-		deleteLayout(layout_index);
-		updateLayoutSwitcher();
-	});
-
-	menu->popup(m_switcher->mapToGlobal(pos));
-}
-
-void DockManager::layoutSwitcherStartBlink()
-{
-	if (!m_switcher)
-		return;
-
-	layoutSwitcherStopBlink();
-
-	if (m_current_layout == DockLayout::INVALID_INDEX)
-		return;
-
-	m_blink_tab = m_current_layout;
-	m_blink_stage = 0;
-	m_blink_timer->start(500);
-
-	layoutSwitcherUpdateBlink();
-}
-
-void DockManager::layoutSwitcherUpdateBlink()
-{
-	if (!m_switcher)
-		return;
-
-	if (m_blink_tab < m_switcher->count())
-	{
-		if (m_blink_stage % 2 == 0)
-			m_switcher->setTabTextColor(m_blink_tab, Qt::red);
-		else
-			m_switcher->setTabTextColor(m_blink_tab, m_switcher->palette().text().color());
-	}
-
-	m_blink_stage++;
-
-	if (m_blink_stage > 7)
-		m_blink_timer->stop();
-}
-
-void DockManager::layoutSwitcherStopBlink()
-{
-	if (m_blink_timer->isActive())
-	{
-		if (m_blink_tab < m_switcher->count())
-			m_switcher->setTabTextColor(m_blink_tab, m_switcher->palette().text().color());
-
-		m_blink_timer->stop();
-	}
-}
-
 bool DockManager::hasNameConflict(const QString& name, DockLayout::Index layout_index)
 {
 	std::string safe_name = Path::SanitizeFileName(name.toStdString());
@@ -879,23 +769,17 @@ bool DockManager::isLayoutLocked()
 	return m_layout_locked;
 }
 
-void DockManager::setLayoutLocked(bool locked, QPushButton* lock_layout_toggle, bool write_back)
+void DockManager::setLayoutLockedAndSaveSetting(bool locked)
+{
+	setLayoutLocked(locked, true);
+}
+
+void DockManager::setLayoutLocked(bool locked, bool save_setting)
 {
 	m_layout_locked = locked;
 
-	if (lock_layout_toggle)
+	if (m_menu_bar)
-	{
+		m_menu_bar->onLockStateChanged(locked);
-		if (m_layout_locked)
-		{
-			lock_layout_toggle->setText(tr("Layout Locked"));
-			lock_layout_toggle->setIcon(QIcon::fromTheme(QString::fromUtf8("padlock-lock")));
-		}
-		else
-		{
-			lock_layout_toggle->setText(tr("Layout Unlocked"));
-			lock_layout_toggle->setIcon(QIcon::fromTheme(QString::fromUtf8("padlock-unlock")));
-		}
-	}
 
 	updateToolBarLockState();
 
@@ -909,7 +793,7 @@ void DockManager::setLayoutLocked(bool locked, QPushButton* lock_layout_toggle,
 			stack->tabBar()->setTabText(0, stack->tabBar()->tabText(0));
 	}
 
-	if (write_back)
+	if (save_setting)
 	{
 		Host::SetBaseBoolSettingValue("Debugger/UserInterface", "LayoutLocked", m_layout_locked);
 		Host::CommitBaseSettingChanges();

pcsx2-qt/Debugger/Docking/DockManager.h

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "Debugger/Docking/DockLayout.h"
+#include "Debugger/Docking/DockMenuBar.h"
 
 #include <kddockwidgets/MainWindow.h>
 #include <kddockwidgets/DockWidget.h>
@@ -68,14 +69,14 @@ public:
 	void createToolsMenu(QMenu* menu);
 	void createWindowsMenu(QMenu* menu);
 
-	QWidget* createLayoutSwitcher(QWidget* menu_bar);
+	QWidget* createMenuBar(QWidget* original_menu_bar);
 	void updateLayoutSwitcher();
-	void layoutSwitcherTabChanged(int index);
+	void newLayoutClicked();
-	void layoutSwitcherTabMoved(int from, int to);
+	void openLayoutSwitcherContextMenu(const QPoint& pos, QTabBar* layout_switcher);
-	void layoutSwitcherContextMenu(QPoint pos);
+	void editLayoutClicked(DockLayout::Index layout_index);
-	void layoutSwitcherStartBlink();
+	void resetLayoutClicked(DockLayout::Index layout_index);
-	void layoutSwitcherUpdateBlink();
+	void deleteLayoutClicked(DockLayout::Index layout_index);
-	void layoutSwitcherStopBlink();
+	void layoutSwitcherTabMoved(DockLayout::Index from_index, DockLayout::Index to_index);
 
 	bool hasNameConflict(const QString& name, DockLayout::Index layout_index);
 
@@ -91,7 +92,8 @@ public:
 	void updateStyleSheets();
 
 	bool isLayoutLocked();
-	void setLayoutLocked(bool locked, QPushButton* lock_layout_toggle, bool write_back);
+	void setLayoutLockedAndSaveSetting(bool locked);
+	void setLayoutLocked(bool locked, bool save_setting);
 	void updateToolBarLockState();
 
 	std::optional<BreakPointCpu> cpu();
@@ -103,16 +105,7 @@ private:
 	std::vector<DockLayout> m_layouts;
 	DockLayout::Index m_current_layout = DockLayout::INVALID_INDEX;
 
-	QTabBar* m_switcher = nullptr;
+	DockMenuBar* m_menu_bar = nullptr;
-	int m_plus_tab_index = -1;
-	int m_current_tab_index = -1;
-	bool m_ignore_current_tab_changed = false;
-
-	QMetaObject::Connection m_tab_connection;
 
 	bool m_layout_locked = true;
-
-	QTimer* m_blink_timer = nullptr;
-	int m_blink_tab = 0;
-	int m_blink_stage = 0;
 };

pcsx2-qt/Debugger/Docking/DockMenuBar.cpp

@@ -0,0 +1,184 @@
+// SPDX-FileCopyrightText: 2002-2025 PCSX2 Dev Team
+// SPDX-License-Identifier: GPL-3.0+
+
+#include "DockMenuBar.h"
+
+#include <QtGui/QPainter>
+#include <QtGui/QPaintEvent>
+#include <QtWidgets/QBoxLayout>
+#include <QtWidgets/QStyleOption>
+
+DockMenuBar::DockMenuBar(QWidget* original_menu_bar, QWidget* parent)
+	: QWidget(parent)
+{
+	QHBoxLayout* layout = new QHBoxLayout;
+	layout->setContentsMargins(0, 2, 2, 0);
+	setLayout(layout);
+
+	QWidget* menu_wrapper = new QWidget;
+	menu_wrapper->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
+	layout->addWidget(menu_wrapper);
+
+	QHBoxLayout* menu_layout = new QHBoxLayout;
+	menu_layout->setContentsMargins(0, 4, 0, 4);
+	menu_wrapper->setLayout(menu_layout);
+
+	menu_layout->addWidget(original_menu_bar);
+
+	m_layout_switcher = new QTabBar;
+	m_layout_switcher->setContentsMargins(0, 0, 0, 0);
+	m_layout_switcher->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
+	m_layout_switcher->setContextMenuPolicy(Qt::CustomContextMenu);
+	m_layout_switcher->setMovable(true);
+	layout->addWidget(m_layout_switcher);
+
+	QWidget* spacer = new QWidget;
+	spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+	layout->addWidget(spacer);
+
+	connect(m_layout_switcher, &QTabBar::tabMoved, this, [this](int from, int to) {
+		DockLayout::Index from_index = static_cast<DockLayout::Index>(from);
+		DockLayout::Index to_index = static_cast<DockLayout::Index>(to);
+		emit layoutMoved(from_index, to_index);
+	});
+
+	connect(m_layout_switcher, &QTabBar::customContextMenuRequested, this, [this](const QPoint& pos) {
+		emit layoutSwitcherContextMenuRequested(pos, m_layout_switcher);
+	});
+
+	m_blink_timer = new QTimer(this);
+	connect(m_blink_timer, &QTimer::timeout, this, &DockMenuBar::updateBlink);
+
+	m_layout_locked_toggle = new QPushButton;
+	m_layout_locked_toggle->setCheckable(true);
+	m_layout_locked_toggle->setFlat(true);
+	connect(m_layout_locked_toggle, &QPushButton::clicked, this, [this](bool checked) {
+		if (m_ignore_lock_state_changed)
+			return;
+
+		emit lockButtonToggled(checked);
+	});
+	layout->addWidget(m_layout_locked_toggle);
+}
+
+void DockMenuBar::updateLayoutSwitcher(DockLayout::Index current_index, const std::vector<DockLayout>& layouts)
+{
+	disconnect(m_tab_connection);
+
+	for (int i = m_layout_switcher->count(); i > 0; i--)
+		m_layout_switcher->removeTab(i - 1);
+
+	for (const DockLayout& layout : layouts)
+	{
+		const char* cpu_name = DebugInterface::cpuName(layout.cpu());
+		QString tab_name = QString("%1 (%2)").arg(layout.name()).arg(cpu_name);
+		m_layout_switcher->addTab(tab_name);
+	}
+
+	m_plus_tab_index = m_layout_switcher->addTab("+");
+	m_current_tab_index = current_index;
+
+	if (current_index != DockLayout::INVALID_INDEX)
+		m_layout_switcher->setCurrentIndex(current_index);
+	else
+		m_layout_switcher->setCurrentIndex(m_plus_tab_index);
+
+	// If we don't have any layouts, the currently selected tab will never be
+	// changed, so we respond to all clicks instead.
+	if (m_plus_tab_index > 0)
+		m_tab_connection = connect(m_layout_switcher, &QTabBar::currentChanged, this, &DockMenuBar::tabChanged);
+	else
+		m_tab_connection = connect(m_layout_switcher, &QTabBar::tabBarClicked, this, &DockMenuBar::tabChanged);
+
+	stopBlink();
+}
+
+void DockMenuBar::onCurrentLayoutChanged(DockLayout::Index current_index)
+{
+	m_ignore_current_tab_changed = true;
+
+	if (current_index != DockLayout::INVALID_INDEX)
+		m_layout_switcher->setCurrentIndex(current_index);
+	else
+		m_layout_switcher->setCurrentIndex(m_plus_tab_index);
+
+	m_ignore_current_tab_changed = false;
+}
+
+void DockMenuBar::onLockStateChanged(bool layout_locked)
+{
+	m_ignore_lock_state_changed = true;
+
+	m_layout_locked_toggle->setChecked(layout_locked);
+
+	if (layout_locked)
+	{
+		m_layout_locked_toggle->setText(tr("Layout Locked"));
+		m_layout_locked_toggle->setIcon(QIcon::fromTheme(QString::fromUtf8("padlock-lock")));
+	}
+	else
+	{
+		m_layout_locked_toggle->setText(tr("Layout Unlocked"));
+		m_layout_locked_toggle->setIcon(QIcon::fromTheme(QString::fromUtf8("padlock-unlock")));
+	}
+
+	m_ignore_lock_state_changed = false;
+}
+
+void DockMenuBar::startBlink(DockLayout::Index layout_index)
+{
+	stopBlink();
+
+	if (layout_index == DockLayout::INVALID_INDEX)
+		return;
+
+	m_blink_tab = static_cast<int>(layout_index);
+	m_blink_stage = 0;
+	m_blink_timer->start(500);
+
+	updateBlink();
+}
+
+void DockMenuBar::updateBlink()
+{
+	if (m_blink_tab < m_layout_switcher->count())
+	{
+		if (m_blink_stage % 2 == 0)
+			m_layout_switcher->setTabTextColor(m_blink_tab, Qt::red);
+		else
+			m_layout_switcher->setTabTextColor(m_blink_tab, m_layout_switcher->palette().text().color());
+	}
+
+	m_blink_stage++;
+
+	if (m_blink_stage > 7)
+		m_blink_timer->stop();
+}
+
+void DockMenuBar::stopBlink()
+{
+	if (m_blink_timer->isActive())
+	{
+		if (m_blink_tab < m_layout_switcher->count())
+			m_layout_switcher->setTabTextColor(m_blink_tab, m_layout_switcher->palette().text().color());
+
+		m_blink_timer->stop();
+	}
+}
+
+void DockMenuBar::tabChanged(int index)
+{
+	// Prevent recursion.
+	if (m_ignore_current_tab_changed)
+		return;
+
+	if (index < m_plus_tab_index)
+	{
+		DockLayout::Index layout_index = static_cast<DockLayout::Index>(index);
+		emit currentLayoutChanged(layout_index);
+	}
+	else if (index == m_plus_tab_index)
+	{
+		emit newButtonClicked();
+	}
+}

pcsx2-qt/Debugger/Docking/DockMenuBar.h

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: 2002-2025 PCSX2 Dev Team
+// SPDX-License-Identifier: GPL-3.0+
+
+#pragma once
+
+#include "Debugger/Docking/DockLayout.h"
+
+#include <QtWidgets/QMenuBar>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QTabBar>
+#include <QtWidgets/QWidget>
+
+class DockMenuBar : public QWidget
+{
+	Q_OBJECT
+
+public:
+	DockMenuBar(QWidget* original_menu_bar, QWidget* parent = nullptr);
+
+	void updateLayoutSwitcher(DockLayout::Index current_index, const std::vector<DockLayout>& layouts);
+
+	// Notify the menu bar that a new layout has been selected.
+	void onCurrentLayoutChanged(DockLayout::Index current_index);
+
+	// Notify the menu bar that the layout has been locked/unlocked.
+	void onLockStateChanged(bool layout_locked);
+
+	void startBlink(DockLayout::Index layout_index);
+	void updateBlink();
+	void stopBlink();
+
+Q_SIGNALS:
+	void currentLayoutChanged(DockLayout::Index layout_index);
+	void newButtonClicked();
+	void layoutMoved(DockLayout::Index from_index, DockLayout::Index to_index);
+	void lockButtonToggled(bool locked);
+
+	void layoutSwitcherContextMenuRequested(const QPoint& pos, QTabBar* layout_switcher);
+
+private:
+	void tabChanged(int index);
+
+
+	QTabBar* m_layout_switcher;
+	QMetaObject::Connection m_tab_connection;
+	int m_plus_tab_index = -1;
+	int m_current_tab_index = -1;
+	bool m_ignore_current_tab_changed = false;
+
+	QTimer* m_blink_timer = nullptr;
+	int m_blink_tab = 0;
+	int m_blink_stage = 0;
+
+	QPushButton* m_layout_locked_toggle;
+	bool m_ignore_lock_state_changed = false;
+};

pcsx2-qt/pcsx2-qt.vcxproj

@@ -126,6 +126,7 @@
     <ClCompile Include="Debugger\Breakpoints\BreakpointWidget.cpp" />
     <ClCompile Include="Debugger\Docking\DockLayout.cpp" />
     <ClCompile Include="Debugger\Docking\DockManager.cpp" />
+    <ClCompile Include="Debugger\Docking\DockMenuBar.cpp" />
     <ClCompile Include="Debugger\Docking\DockTables.cpp" />
     <ClCompile Include="Debugger\Docking\DockUtils.cpp" />
     <ClCompile Include="Debugger\Docking\DockViews.cpp" />
@@ -242,6 +243,7 @@
     <QtMoc Include="Debugger\Breakpoints\BreakpointWidget.h" />
     <QtMoc Include="Debugger\Docking\DockLayout.h" />
     <QtMoc Include="Debugger\Docking\DockManager.h" />
+    <QtMoc Include="Debugger\Docking\DockMenuBar.h" />
     <QtMoc Include="Debugger\Docking\DockTables.h" />
     <QtMoc Include="Debugger\Docking\DockUtils.h" />
     <QtMoc Include="Debugger\Docking\DockViews.h" />
@@ -313,6 +315,7 @@
     <ClCompile Include="$(IntDir)Debugger\Breakpoints\moc_BreakpointModel.cpp" />
     <ClCompile Include="$(IntDir)Debugger\Breakpoints\moc_BreakpointWidget.cpp" />
     <ClCompile Include="$(IntDir)Debugger\Docking\moc_DockManager.cpp" />
+    <ClCompile Include="$(IntDir)Debugger\Docking\moc_DockMenuBar.cpp" />
     <ClCompile Include="$(IntDir)Debugger\Docking\moc_DockViews.cpp" />
     <ClCompile Include="$(IntDir)Debugger\Docking\moc_DropIndicators.cpp" />
     <ClCompile Include="$(IntDir)Debugger\Docking\moc_LayoutEditorDialog.cpp" />

pcsx2-qt/pcsx2-qt.vcxproj.filters

@@ -488,6 +488,12 @@
     <ClCompile Include="$(IntDir)Debugger\SymbolTree\moc_TypeString.cpp">
       <Filter>moc</Filter>
     </ClCompile>
+    <ClCompile Include="$(IntDir)Debugger\Docking\moc_DockMenuBar.cpp">
+      <Filter>moc</Filter>
+    </ClCompile>
+    <ClCompile Include="Debugger\Docking\DockMenuBar.cpp">
+      <Filter>Debugger\Docking</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Manifest Include="..\pcsx2\windows\PCSX2.manifest">
@@ -719,6 +725,9 @@
     <QtMoc Include="Debugger\SymbolTree\NewSymbolDialogs.h">
       <Filter>Debugger\SymbolTree</Filter>
     </QtMoc>
+    <QtMoc Include="Debugger\Docking\DockMenuBar.h">
+      <Filter>Debugger\Docking</Filter>
+    </QtMoc>
   </ItemGroup>
   <ItemGroup>
     <QtResource Include="resources\resources.qrc">