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#define NO_MEM_TRACKING

#include "debugqtmainwindow.h"

#include "debug/debugcon.h"
#include "debug/debugcpu.h"
#include "debug/dvdisasm.h"


MainWindow::MainWindow(running_machine* machine, QWidget* parent) :
	WindowQt(machine, NULL),
	m_historyIndex(0),
	m_inputHistory()
{
	setGeometry(300, 300, 1000, 600);

	//
	// The main frame and its input and log widgets
	//
	QFrame* mainWindowFrame = new QFrame(this);

	// The input line
	m_inputEdit = new QLineEdit(mainWindowFrame);
	connect(m_inputEdit, SIGNAL(returnPressed()), this, SLOT(executeCommand()));
	m_inputEdit->installEventFilter(this);


	// The log view
	m_consoleView = new DebuggerView(DVT_CONSOLE,
										m_machine,
										mainWindowFrame);
	m_consoleView->setFocusPolicy(Qt::NoFocus);
	m_consoleView->setPreferBottom(true);

	QVBoxLayout* vLayout = new QVBoxLayout(mainWindowFrame);
	vLayout->addWidget(m_consoleView);
	vLayout->addWidget(m_inputEdit);
	vLayout->setSpacing(3);
	vLayout->setContentsMargins(4,0,4,2);

	setCentralWidget(mainWindowFrame);

	//
	// Options Menu
	//
	// Create two commands
	QAction* breakpointSetAct = new QAction("Toggle Breakpoint At Cursor", this);
	QAction* runToCursorAct = new QAction("Run To Cursor", this);
	breakpointSetAct->setShortcut(Qt::Key_F9);
	runToCursorAct->setShortcut(Qt::Key_F4);
	connect(breakpointSetAct, SIGNAL(triggered(bool)), this, SLOT(toggleBreakpointAtCursor(bool)));
	connect(runToCursorAct, SIGNAL(triggered(bool)), this, SLOT(runToCursor(bool)));

	// Right bar options
	QActionGroup* rightBarGroup = new QActionGroup(this);
	rightBarGroup->setObjectName("rightbargroup");
	QAction* rightActRaw = new QAction("Raw Opcodes", this);
	QAction* rightActEncrypted = new QAction("Encrypted Opcodes", this);
	QAction* rightActComments = new QAction("Comments", this);
	rightActRaw->setCheckable(true);
	rightActEncrypted->setCheckable(true);
	rightActComments->setCheckable(true);
	rightActRaw->setActionGroup(rightBarGroup);
	rightActEncrypted->setActionGroup(rightBarGroup);
	rightActComments->setActionGroup(rightBarGroup);
	rightActRaw->setShortcut(QKeySequence("Ctrl+R"));
	rightActEncrypted->setShortcut(QKeySequence("Ctrl+E"));
	rightActComments->setShortcut(QKeySequence("Ctrl+C"));
	rightActRaw->setChecked(true);
	connect(rightBarGroup, SIGNAL(triggered(QAction*)), this, SLOT(rightBarChanged(QAction*)));

	// Assemble the options menu
	QMenu* optionsMenu = menuBar()->addMenu("&Options");
	optionsMenu->addAction(breakpointSetAct);
	optionsMenu->addAction(runToCursorAct);
	optionsMenu->addSeparator();
	optionsMenu->addActions(rightBarGroup->actions());

	//
	// Images menu
	//
	image_interface_iterator imageIterTest(m_machine->root_device());
	if (imageIterTest.first() != NULL)
	{
		createImagesMenu();
	}

	//
	// Dock window menu
	//
	QMenu* dockMenu = menuBar()->addMenu("Doc&ks");

	setCorner(Qt::TopRightCorner, Qt::TopDockWidgetArea);
	setCorner(Qt::TopLeftCorner, Qt::LeftDockWidgetArea);

	// The processor dock
	QDockWidget* cpuDock = new QDockWidget("processor", this);
	cpuDock->setObjectName("cpudock");
	cpuDock->setAllowedAreas(Qt::LeftDockWidgetArea);
	m_procFrame = new ProcessorDockWidget(m_machine, cpuDock);
	cpuDock->setWidget(dynamic_cast<QWidget*>(m_procFrame));

	addDockWidget(Qt::LeftDockWidgetArea, cpuDock);
	dockMenu->addAction(cpuDock->toggleViewAction());

	// The disassembly dock
	QDockWidget* dasmDock = new QDockWidget("dasm", this);
	dasmDock->setObjectName("dasmdock");
	dasmDock->setAllowedAreas(Qt::TopDockWidgetArea);
	m_dasmFrame = new DasmDockWidget(m_machine, dasmDock);
	dasmDock->setWidget(m_dasmFrame);

	addDockWidget(Qt::TopDockWidgetArea, dasmDock);
	dockMenu->addAction(dasmDock->toggleViewAction());
}


MainWindow::~MainWindow()
{
}


void MainWindow::setProcessor(device_t* processor)
{
	// Cpu swap
	m_procFrame->view()->view()->set_source(*m_procFrame->view()->view()->source_for_device(processor));
	m_dasmFrame->view()->view()->set_source(*m_dasmFrame->view()->view()->source_for_device(processor));

	// Scrollbar refresh - seems I should be able to do in the DebuggerView
	m_dasmFrame->view()->verticalScrollBar()->setValue(m_dasmFrame->view()->view()->visible_position().y);
	m_dasmFrame->view()->verticalScrollBar()->setValue(m_dasmFrame->view()->view()->visible_position().y);

	// Window title
	astring title;
	title.printf("Debug: %s - %s '%s'", m_machine->system().name, processor->name(), processor->tag());
	setWindowTitle(title.cstr());
}


// Used to intercept the user clicking 'X' in the upper corner
void MainWindow::closeEvent(QCloseEvent* event)
{
	debugActQuit();

	// Insure the window doesn't disappear before we get a chance to save its parameters
	event->ignore();
}


// Used to intercept the user hitting the up arrow in the input widget
bool MainWindow::eventFilter(QObject* obj, QEvent* event)
{
	// Only filter keypresses
	QKeyEvent* keyEvent = NULL;
	if (event->type() == QEvent::KeyPress)
	{
		keyEvent = static_cast<QKeyEvent*>(event);
	}
	else
	{
		return QObject::eventFilter(obj, event);
	}

	// Catch up & down keys
	if (keyEvent->key() == Qt::Key_Up || keyEvent->key() == Qt::Key_Down)
	{
		if (keyEvent->key() == Qt::Key_Up)
		{
			if (m_historyIndex > 0)
				m_historyIndex--;
		}
		else if (keyEvent->key() == Qt::Key_Down)
		{
			if (m_historyIndex < m_inputHistory.size())
				m_historyIndex++;
		}

		// Populate the input edit or clear it if you're at the end
		if (m_historyIndex == m_inputHistory.size())
		{
			m_inputEdit->setText("");
		}
		else
		{
			m_inputEdit->setText(m_inputHistory[m_historyIndex]);
		}
	}
	else if (keyEvent->key() == Qt::Key_Enter)
	{
		executeCommand(false);
	}
	else
	{
		return QObject::eventFilter(obj, event);
	}

	return true;
}


void MainWindow::toggleBreakpointAtCursor(bool changedTo)
{
	debug_view_disasm* dasmView = downcast<debug_view_disasm*>(m_dasmFrame->view()->view());
	if (dasmView->cursor_visible())
	{
		if (debug_cpu_get_visible_cpu(*m_machine) == dasmView->source()->device())
		{
			offs_t address = downcast<debug_view_disasm *>(dasmView)->selected_address();
			device_debug *cpuinfo = dasmView->source()->device()->debug();

			// Find an existing breakpoint at this address
			INT32 bpindex = -1;
			for (device_debug::breakpoint* bp = cpuinfo->breakpoint_first();
					bp != NULL;
					bp = bp->next())
			{
				if (address == bp->address())
				{
					bpindex = bp->index();
					break;
				}
			}

			// If none exists, add a new one
			astring command;
			if (bpindex == -1)
			{
				command.printf("bpset 0x%X", address);
			}
			else
			{
				command.printf("bpclear 0x%X", bpindex);
			}
			debug_console_execute_command(*m_machine, command, 1);
		}
	}

	refreshAll();
}


void MainWindow::runToCursor(bool changedTo)
{
	debug_view_disasm* dasmView = downcast<debug_view_disasm*>(m_dasmFrame->view()->view());
	if (dasmView->cursor_visible())
	{
		if (debug_cpu_get_visible_cpu(*m_machine) == dasmView->source()->device())
		{
			offs_t address = downcast<debug_view_disasm*>(dasmView)->selected_address();
			astring command;
			command.printf("go 0x%X", address);
			debug_console_execute_command(*m_machine, command, 1);
		}
	}
}


void MainWindow::rightBarChanged(QAction* changedTo)
{
	debug_view_disasm* dasmView = downcast<debug_view_disasm*>(m_dasmFrame->view()->view());
	if (changedTo->text() == "Raw Opcodes")
	{
		dasmView->set_right_column(DASM_RIGHTCOL_RAW);
	}
	else if (changedTo->text() == "Encrypted Opcodes")
	{
		dasmView->set_right_column(DASM_RIGHTCOL_ENCRYPTED);
	}
	else if (changedTo->text() == "Comments")
	{
		dasmView->set_right_column(DASM_RIGHTCOL_COMMENTS);
	}
	m_dasmFrame->view()->viewport()->update();
}


void MainWindow::executeCommand(bool withClear)
{
	QString command = m_inputEdit->text();

	// A blank command is a "silent step"
	if (command == "")
	{
		debug_cpu_get_visible_cpu(*m_machine)->debug()->single_step();
		return;
	}

	// Send along the command
	debug_console_execute_command(*m_machine,
									command.toLocal8Bit().data(),
									true);

	// Add history & set the index to be the top of the stack
	addToHistory(command);

	// Clear out the text and reset the history pointer only if asked
	if (withClear)
	{
		m_inputEdit->clear();
		m_historyIndex = m_inputHistory.size();
	}

	// Refresh
	m_consoleView->viewport()->update();
	refreshAll();
}


void MainWindow::mountImage(bool changedTo)
{
	// The image interface index was assigned to the QAction's data memeber
	const int imageIndex = dynamic_cast<QAction*>(sender())->data().toInt();
	image_interface_iterator iter(m_machine->root_device());
	device_image_interface *img = iter.byindex(imageIndex);
	if (img == NULL)
	{
		debug_console_printf(*m_machine, "Something is wrong with the mount menu.\n");
		refreshAll();
		return;
	}

	// File dialog
	QString filename = QFileDialog::getOpenFileName(this,
													"Select an image file",
													QDir::currentPath(),
													tr("All files (*.*)"));

	if (img->load(filename.toUtf8().data()) != IMAGE_INIT_PASS)
	{
		debug_console_printf(*m_machine, "Image could not be mounted.\n");
		refreshAll();
		return;
	}

	// Activate the unmount menu option
	QAction* unmountAct = sender()->parent()->findChild<QAction*>("unmount");
	unmountAct->setEnabled(true);

	// Set the mount name
	QMenu* parentMenuItem = dynamic_cast<QMenu*>(sender()->parent());
	QString baseString = parentMenuItem->title();
	baseString.truncate(baseString.lastIndexOf(QString(" : ")));
	const QString newTitle = baseString + QString(" : ") + QString(img->filename());
	parentMenuItem->setTitle(newTitle);

	debug_console_printf(*m_machine, "Image %s mounted successfully.\n", filename.toUtf8().data());
	refreshAll();
}


void MainWindow::unmountImage(bool changedTo)
{
	// The image interface index was assigned to the QAction's data memeber
	const int imageIndex = dynamic_cast<QAction*>(sender())->data().toInt();
	image_interface_iterator iter(m_machine->root_device());
	device_image_interface *img = iter.byindex(imageIndex);

	img->unload();

	// Deactivate the unmount menu option
	dynamic_cast<QAction*>(sender())->setEnabled(false);

	// Set the mount name
	QMenu* parentMenuItem = dynamic_cast<QMenu*>(sender()->parent());
	QString baseString = parentMenuItem->title();
	baseString.truncate(baseString.lastIndexOf(QString(" : ")));
	const QString newTitle = baseString + QString(" : ") + QString("[empty slot]");
	parentMenuItem->setTitle(newTitle);

	debug_console_printf(*m_machine, "Image successfully unmounted.\n");
	refreshAll();
}


void MainWindow::debugActClose()
{
	m_machine->schedule_exit();
}


void MainWindow::addToHistory(const QString& command)
{
	if (command == "")
		return;

	// Always push back when there is no previous history
	if (m_inputHistory.size() == 0)
	{
		m_inputHistory.push_back(m_inputEdit->text());
		return;
	}

	// If there is previous history, make sure it's not what you just executed
	if (m_inputHistory.back() != m_inputEdit->text())
	{
		m_inputHistory.push_back(m_inputEdit->text());
	}
}


void MainWindow::createImagesMenu()
{
	QMenu* imagesMenu = menuBar()->addMenu("&Images");

	int interfaceIndex = 0;
	image_interface_iterator iter(m_machine->root_device());
	for (device_image_interface *img = iter.first(); img != NULL; img = iter.next())
	{
		astring menuName;
		menuName.format("%s : %s", img->device().name(), img->exists() ? img->filename() : "[empty slot]");

		QMenu* interfaceMenu = imagesMenu->addMenu(menuName.cstr());
		interfaceMenu->setObjectName(img->device().name());

		QAction* mountAct = new QAction("Mount...", interfaceMenu);
		QAction* unmountAct = new QAction("Unmount", interfaceMenu);
		mountAct->setObjectName("mount");
		mountAct->setData(QVariant(interfaceIndex));
		unmountAct->setObjectName("unmount");
		unmountAct->setData(QVariant(interfaceIndex));
		connect(mountAct, SIGNAL(triggered(bool)), this, SLOT(mountImage(bool)));
		connect(unmountAct, SIGNAL(triggered(bool)), this, SLOT(unmountImage(bool)));

		if (!img->exists())
			unmountAct->setEnabled(false);

		interfaceMenu->addAction(mountAct);
		interfaceMenu->addAction(unmountAct);

		// TODO: Cassette operations

		interfaceIndex++;
	}
}


//=========================================================================
//  MainWindowQtConfig
//=========================================================================
void MainWindowQtConfig::buildFromQWidget(QWidget* widget)
{
	WindowQtConfig::buildFromQWidget(widget);
	MainWindow* window = dynamic_cast<MainWindow*>(widget);
	m_windowState = window->saveState();

	QActionGroup* rightBarGroup = window->findChild<QActionGroup*>("rightbargroup");
	if (rightBarGroup->checkedAction()->text() == "Raw Opcodes")
		m_rightBar = 0;
	else if (rightBarGroup->checkedAction()->text() == "Encrypted Opcodes")
		m_rightBar = 1;
	else if (rightBarGroup->checkedAction()->text() == "Comments")
		m_rightBar = 2;
}


void MainWindowQtConfig::applyToQWidget(QWidget* widget)
{
	WindowQtConfig::applyToQWidget(widget);
	MainWindow* window = dynamic_cast<MainWindow*>(widget);
	window->restoreState(m_windowState);

	QActionGroup* rightBarGroup = window->findChild<QActionGroup*>("rightbargroup");
	rightBarGroup->actions()[m_rightBar]->trigger();
}


void MainWindowQtConfig::addToXmlDataNode(xml_data_node* node) const
{
	WindowQtConfig::addToXmlDataNode(node);
	xml_set_attribute_int(node, "rightbar", m_rightBar);
	xml_set_attribute(node, "qtwindowstate", m_windowState.toPercentEncoding().data());
}


void MainWindowQtConfig::recoverFromXmlNode(xml_data_node* node)
{
	WindowQtConfig::recoverFromXmlNode(node);
	const char* state = xml_get_attribute_string(node, "qtwindowstate", "");
	m_windowState = QByteArray::fromPercentEncoding(state);
	m_rightBar = xml_get_attribute_int(node, "rightbar", m_rightBar);
}

DasmDockWidget::~DasmDockWidget()
{
}

ProcessorDockWidget::~ProcessorDockWidget()
{
}