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// license:BSD-3-Clause
// copyright-holders:Andrew Gardner
#ifndef MAME_DEBUGGER_QT_MAINWINDOW_H
#define MAME_DEBUGGER_QT_MAINWINDOW_H

#include "debuggerview.h"
#include "windowqt.h"

#include "debug/dvdisasm.h"

#include <QtWidgets/QLineEdit>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QComboBox>

#include <vector>


class DasmDockWidget;
class ProcessorDockWidget;


//============================================================
//  The Main Window.  Contains processor and dasm docks.
//============================================================
class MainWindow : public WindowQt
{
	Q_OBJECT

public:
	MainWindow(running_machine &machine, QWidget *parent = nullptr);
	virtual ~MainWindow();

	void setProcessor(device_t *processor);


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

	// Used to intercept the user hitting the up arrow in the input widget
	bool eventFilter(QObject *obj, QEvent *event);

private slots:
	void toggleBreakpointAtCursor(bool changedTo);
	void enableBreakpointAtCursor(bool changedTo);
	void runToCursor(bool changedTo);
	void rightBarChanged(QAction *changedTo);

	void executeCommandSlot();

	void mountImage(bool changedTo);
	void unmountImage(bool changedTo);

	void dasmViewUpdated();

	// Closing the main window actually exits the program
	void debugActClose();


private:
	void createImagesMenu();

	// Widgets and docks
	QLineEdit *m_inputEdit;
	DebuggerView *m_consoleView;
	ProcessorDockWidget *m_procFrame;
	DasmDockWidget *m_dasmFrame;

	// Menu items
	QAction *m_breakpointToggleAct;
	QAction *m_breakpointEnableAct;
	QAction *m_runToCursorAct;

	// Terminal history
	int m_historyIndex;
	std::vector<QString> m_inputHistory;
	void addToHistory(const QString& command);
	void executeCommand(bool withClear);
};


//============================================================
//  Docks with the Main Window.  Disassembly.
//============================================================
class DasmDockWidget : public QWidget
{
	Q_OBJECT

public:
	DasmDockWidget(running_machine &machine, QWidget *parent = nullptr) :
		QWidget(parent),
		m_machine(machine)
	{
		m_dasmView = new DebuggerView(DVT_DISASSEMBLY, m_machine, this);

		// Force a recompute of the disassembly region
		downcast<debug_view_disasm*>(m_dasmView->view())->set_expression("curpc");

		QVBoxLayout *dvLayout = new QVBoxLayout(this);
		dvLayout->addWidget(m_dasmView);
		dvLayout->setContentsMargins(4,0,4,0);
	}

	virtual ~DasmDockWidget();

	DebuggerView *view() { return m_dasmView; }

	QSize minimumSizeHint() const { return QSize(150, 150); }
	QSize sizeHint() const { return QSize(150, 200); }

private:
	running_machine &m_machine;

	DebuggerView *m_dasmView;
};


//============================================================
//  Docks with the Main Window.  Processor information.
//============================================================
class ProcessorDockWidget : public QWidget
{
	Q_OBJECT

public:
	ProcessorDockWidget(running_machine &machine, QWidget *parent = nullptr) :
		QWidget(parent),
		m_machine(machine),
		m_processorView(nullptr)
	{
		m_processorView = new DebuggerView(DVT_STATE, m_machine, this);
		m_processorView->setFocusPolicy(Qt::NoFocus);

		QVBoxLayout *cvLayout = new QVBoxLayout(this);
		cvLayout->addWidget(m_processorView);
		cvLayout->setContentsMargins(4,0,4,2);
	}

	virtual ~ProcessorDockWidget();

	DebuggerView *view() { return m_processorView; }

	QSize minimumSizeHint() const { return QSize(150, 300); }
	QSize sizeHint() const { return QSize(200, 300); }

private:
	running_machine &m_machine;

	DebuggerView *m_processorView;
};


//=========================================================================
//  A way to store the configuration of a window long enough to read/write.
//=========================================================================
class MainWindowQtConfig : public WindowQtConfig
{
public:
	MainWindowQtConfig() :
		WindowQtConfig(WIN_TYPE_MAIN),
		m_rightBar(0),
		m_windowState()
	{}

	~MainWindowQtConfig() {}

	// Settings
	int m_rightBar;
	QByteArray m_windowState;

	void buildFromQWidget(QWidget *widget);
	void applyToQWidget(QWidget *widget);
	void addToXmlDataNode(util::xml::data_node &node) const;
	void recoverFromXmlNode(util::xml::data_node const &node);
};


#endif // MAME_DEBUGGER_QT_MAINWINDOW_H