/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2020 mjbudd77
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
// CheatsConf.cpp
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>

#include <SDL.h>
#include <QHeaderView>
#include <QFileDialog>
#include <QScreen>
#include <QGuiApplication>
#include <QMessageBox>
#include <QSettings>

#include "../../types.h"
#include "../../fceu.h"
#include "../../cheat.h"
#include "../../debug.h"
#include "../../driver.h"
#include "Qt/main.h"
#include "Qt/dface.h"
#include "Qt/input.h"
#include "Qt/config.h"
#include "Qt/keyscan.h"
#include "Qt/fceuWrapper.h"
#include "Qt/CheatsConf.h"
#include "Qt/ConsoleUtilities.h"

static GuiCheatsDialog_t *win = NULL;
//----------------------------------------------------------------------------
void openCheatDialog(QWidget *parent)
{
	if (win != NULL)
	{
		win->activateWindow();
		win->raise();
		return;
	}
	win = new GuiCheatsDialog_t(parent);

	win->show();
}
//----------------------------------------------------------------------------
void updateCheatDialog(void)
{
	if (win == NULL)
	{
		return;
	}
	win->showActiveCheatList(true);
}
//----------------------------------------------------------------------------
GuiCheatsDialog_t::GuiCheatsDialog_t(QWidget *parent)
	: QDialog(parent, Qt::Window)
{
	QSettings    settings;
	QHBoxLayout *mainLayout, *hbox, *hbox1;
	QVBoxLayout *vbox, *vbox1, *vbox2, *vbox3;
	QTreeWidgetItem *item;
	QLabel *lbl;
	QGroupBox *groupBox;
	QPushButton *closeButton;
	QFrame *frame;

	font.setFamily("Courier New");
	font.setStyle(QFont::StyleNormal);
	font.setStyleHint(QFont::Monospace);

	QFontMetrics fm(font);

#if QT_VERSION > QT_VERSION_CHECK(5, 11, 0)
	fontCharWidth = 2 * fm.horizontalAdvance(QLatin1Char('2'));
#else
	fontCharWidth = 2 * fm.width(QLatin1Char('2'));
#endif

	setWindowTitle("Cheat Search");

	pauseWhileActive = false;
	wasPausedByCheats = false;

	g_config->getOption("SDL.CheatsWindowPause", &pauseWhileActive);

	//resize( 512, 512 );

	// Window Layout Box
	mainLayout = new QHBoxLayout();

	//-------------------------------------------------------
	// Left Side Active Cheats Frame
	actCheatFrame = new QGroupBox(tr("Active Cheats"));

	vbox1 = new QVBoxLayout();

	mainLayout->addWidget(actCheatFrame);

	actvCheatList = new QTreeWidget();

	actvCheatList->setColumnCount(2);

	item = new QTreeWidgetItem();
	item->setFont(0, font);
	item->setFont(1, font);
	item->setText(0, QString::fromStdString("Code"));
	item->setText(1, QString::fromStdString("Name"));
	item->setTextAlignment(0, Qt::AlignCenter);
	item->setTextAlignment(1, Qt::AlignCenter);

	actvCheatList->setHeaderItem(item);

	actvCheatList->header()->setSectionResizeMode(QHeaderView::ResizeToContents);

	connect(actvCheatList, SIGNAL(itemClicked(QTreeWidgetItem *, int)),
			this, SLOT(actvCheatItemClicked(QTreeWidgetItem *, int)));

	hbox = new QHBoxLayout();

	enaCheats = new QCheckBox(tr("Enable Cheats"));
	autoSave = new QCheckBox(tr("Auto Load / Save with Game"));

	enaCheats->setChecked(!globalCheatDisabled);
	autoSave->setChecked(!disableAutoLSCheats);

	hbox->addWidget(enaCheats);
	hbox->addWidget(autoSave);

	vbox1->addLayout(hbox);

	vbox1->addWidget(actvCheatList);

	hbox = new QHBoxLayout();

	lbl = new QLabel(tr("Name:"));
	cheatNameEntry = new QLineEdit();
	cheatNameEntry->setFont(font);
	//cheatNameEntry->setMaxLength(64);

	hbox->addWidget(lbl);
	hbox->addWidget(cheatNameEntry);

	vbox1->addLayout(hbox);

	hbox = new QHBoxLayout();

	lbl = new QLabel(tr("Address:"));
	cheatAddrEntry = new QLineEdit();
	cheatAddrEntry->setMaxLength(4);
	cheatAddrEntry->setInputMask(">HHHH;0");
	cheatAddrEntry->setFont(font);
	cheatAddrEntry->setCursorPosition(0);
	cheatAddrEntry->setAlignment(Qt::AlignCenter);
	cheatAddrEntry->setMaximumWidth(5 * fontCharWidth);

	hbox->addWidget(lbl);
	hbox->addWidget(cheatAddrEntry);

	lbl = new QLabel(tr("Value:"));
	cheatValEntry = new QLineEdit();
	cheatValEntry->setMaxLength(2);
	cheatValEntry->setInputMask(">HH;0");
	cheatValEntry->setFont(font);
	cheatValEntry->setCursorPosition(0);
	cheatValEntry->setAlignment(Qt::AlignCenter);
	cheatValEntry->setMaximumWidth(3 * fontCharWidth);

	hbox->addWidget(lbl);
	hbox->addWidget(cheatValEntry);

	lbl = new QLabel(tr("Compare:"));
	cheatCmpEntry = new QLineEdit();
	cheatCmpEntry->setMaxLength(2);
	cheatCmpEntry->setInputMask(">HH;X");
	cheatCmpEntry->setFont(font);
	cheatCmpEntry->setCursorPosition(0);
	cheatCmpEntry->setAlignment(Qt::AlignCenter);
	cheatCmpEntry->setMaximumWidth(3 * fontCharWidth);

	hbox->addWidget(lbl);
	hbox->addWidget(cheatCmpEntry);

	vbox1->addLayout(hbox);

	hbox = new QHBoxLayout();
	lbl = new QLabel(tr("Type:"));
	typeEntry = new QComboBox();
	typeEntry->addItem(tr("0: Periodic Set (Every Frame)"), 0 );
	typeEntry->addItem(tr("1: Substitute/Freeze"), 1 );
	typeEntry->setCurrentIndex(1);

	hbox->addWidget(lbl,1);
	hbox->addWidget(typeEntry,10);

	vbox1->addLayout(hbox);

	hbox = new QHBoxLayout();

	addCheatBtn = new QPushButton(tr("Add"));
	delCheatBtn = new QPushButton(tr("Delete"));
	modCheatBtn = new QPushButton(tr("Update"));

	hbox->addWidget(addCheatBtn);
	hbox->addWidget(delCheatBtn);
	hbox->addWidget(modCheatBtn);

	vbox1->addLayout(hbox);

	hbox = new QHBoxLayout();

	importCheatFileBtn = new QPushButton(tr("Import"));
	exportCheatFileBtn = new QPushButton(tr("Export"));
	importCheatFileBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	exportCheatFileBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

	hbox->addWidget(importCheatFileBtn);
	hbox->addWidget(exportCheatFileBtn);

	vbox1->addLayout(hbox);

	actCheatFrame->setLayout(vbox1);

	cheatSearchFrame = new QGroupBox(tr("Cheat Search"));
	cheatResultFrame = new QGroupBox(tr("Possibilities"));

	srchResults = new QTreeWidget();
	srchResults->setColumnCount(3);

	item = new QTreeWidgetItem();
	item->setFont(0, font);
	item->setFont(1, font);
	item->setFont(2, font);
	item->setText(0, QString::fromStdString("Addr"));
	item->setText(1, QString::fromStdString("Pre"));
	item->setText(2, QString::fromStdString("Cur"));
	item->setTextAlignment(0, Qt::AlignCenter);
	item->setTextAlignment(1, Qt::AlignCenter);
	item->setTextAlignment(2, Qt::AlignCenter);

	srchResults->setHeaderItem(item);

	//srchResults->header()->setSectionResizeMode( QHeaderView::ResizeToContents );
	srchResults->header()->setSectionResizeMode(QHeaderView::Interactive);
	//srchResults->header()->setSectionResizeMode( QHeaderView::Fixed );
	srchResults->header()->resizeSection(0, 10 * fontCharWidth);
	srchResults->header()->resizeSection(1, 6 * fontCharWidth);
	srchResults->header()->resizeSection(2, 6 * fontCharWidth);
	//srchResults->header()->setSectionResizeMode( QHeaderView::Stretch );
	//srchResults->header()->setDefaultSectionSize( 200 );
	//srchResults->header()->setDefaultSectionSize( 200 );
	//srchResults->setReadOnly(true);

	vbox = new QVBoxLayout();
	vbox->addWidget(srchResults);
	cheatResultFrame->setLayout(vbox);

	hbox1 = new QHBoxLayout();

	vbox2 = new QVBoxLayout();

	hbox1->addLayout(vbox2);
	hbox1->addWidget(cheatResultFrame);

	cheatSearchFrame->setLayout(hbox1);

	srchResetBtn = new QPushButton(tr("Reset"));
	srchResetBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

	vbox2->addWidget(srchResetBtn);

	frame = new QFrame();
	frame->setFrameShape(QFrame::Box);
	frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	vbox2->addWidget(frame);
	vbox = new QVBoxLayout();

	frame->setLayout(vbox);

	knownValBtn = new QPushButton(tr("Known Value:"));
	knownValBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	knownValBtn->setEnabled(false);

	vbox->addWidget(knownValBtn);

	hbox1 = new QHBoxLayout();
	vbox->addLayout(hbox1);

	lbl = new QLabel(tr("0x"));
	lbl->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	knownValEntry = new QLineEdit();
	knownValEntry->setMaxLength(2);
	knownValEntry->setInputMask(">HH;0");
	knownValEntry->setFont(font);
	knownValEntry->setCursorPosition(0);
	knownValEntry->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	knownValEntry->setMaximumWidth(3 * fontCharWidth);
	knownValEntry->setAlignment(Qt::AlignCenter);
	knownValEntry->setEnabled(false);
	hbox1->addWidget(lbl, 0, Qt::AlignRight);
	hbox1->addWidget(knownValEntry, 0, Qt::AlignLeft);

	groupBox = new QGroupBox(tr("Previous Compare"));
	vbox2->addWidget(groupBox);
	groupBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);

	vbox3 = new QVBoxLayout();

	frame = new QFrame();
	frame->setFrameShape(QFrame::Box);
	frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	vbox3->addWidget(frame);
	vbox = new QVBoxLayout();

	eqValBtn = new QPushButton(tr("Equal"));
	eqValBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	eqValBtn->setEnabled(false);
	vbox->addWidget(eqValBtn);

	frame->setLayout(vbox);

	frame = new QFrame();
	frame->setFrameShape(QFrame::Box);
	frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	vbox3->addWidget(frame);
	vbox = new QVBoxLayout();

	neValBtn = new QPushButton(tr("Not Equal"));
	neValBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	neValBtn->setEnabled(false);

	hbox = new QHBoxLayout();
	useNeVal = new QCheckBox(tr("By:"));
	useNeVal->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	useNeVal->setEnabled(false);
	neValEntry = new QLineEdit();
	neValEntry->setMaxLength(2);
	neValEntry->setInputMask(">HH;0");
	neValEntry->setFont(font);
	neValEntry->setCursorPosition(0);
	neValEntry->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	neValEntry->setMaximumWidth(3 * fontCharWidth);
	neValEntry->setAlignment(Qt::AlignCenter);
	neValEntry->setEnabled(false);

	hbox->addWidget(useNeVal, 0, Qt::AlignRight);
	hbox->addWidget(neValEntry, 0, Qt::AlignLeft);

	vbox->addWidget(neValBtn);
	vbox->addLayout(hbox);
	frame->setLayout(vbox);

	frame = new QFrame();
	frame->setFrameShape(QFrame::Box);
	frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	vbox3->addWidget(frame);
	vbox = new QVBoxLayout();

	grValBtn = new QPushButton(tr("Greater Than"));
	grValBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	grValBtn->setEnabled(false);

	hbox = new QHBoxLayout();
	useGrVal = new QCheckBox(tr("By:"));
	useGrVal->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	useGrVal->setEnabled(false);
	grValEntry = new QLineEdit();
	grValEntry->setMaxLength(2);
	grValEntry->setInputMask(">HH;0");
	grValEntry->setFont(font);
	grValEntry->setCursorPosition(0);
	grValEntry->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	grValEntry->setMaximumWidth(3 * fontCharWidth);
	grValEntry->setAlignment(Qt::AlignCenter);
	grValEntry->setEnabled(false);

	hbox->addWidget(useGrVal, 0, Qt::AlignRight);
	hbox->addWidget(grValEntry, 0, Qt::AlignLeft);

	vbox->addWidget(grValBtn);
	vbox->addLayout(hbox);
	frame->setLayout(vbox);

	frame = new QFrame();
	frame->setFrameShape(QFrame::Box);
	frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	vbox3->addWidget(frame);
	vbox = new QVBoxLayout();

	ltValBtn = new QPushButton(tr("Less Than"));
	ltValBtn->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	ltValBtn->setEnabled(false);

	hbox = new QHBoxLayout();
	useLtVal = new QCheckBox(tr("By:"));
	useLtVal->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	useLtVal->setEnabled(false);
	ltValEntry = new QLineEdit();
	ltValEntry->setMaxLength(2);
	ltValEntry->setInputMask(">HH;0");
	ltValEntry->setFont(font);
	ltValEntry->setCursorPosition(0);
	ltValEntry->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	ltValEntry->setMaximumWidth(3 * fontCharWidth);
	ltValEntry->setAlignment(Qt::AlignCenter);
	ltValEntry->setEnabled(false);

	hbox->addWidget(useLtVal, 0, Qt::AlignRight);
	hbox->addWidget(ltValEntry, 0, Qt::AlignLeft);

	vbox->addWidget(ltValBtn);
	vbox->addLayout(hbox);
	frame->setLayout(vbox);

	groupBox->setLayout(vbox3);

	vbox = new QVBoxLayout();
	hbox = new QHBoxLayout();

	pauseBox = new QCheckBox(tr("Pause emulation when this window is active"));
	pauseBox->setChecked(pauseWhileActive);
	closeButton = new QPushButton( tr("Close") );
	closeButton->setIcon(style()->standardIcon(QStyle::SP_DialogCloseButton));

	hbox->addWidget(pauseBox, 5);
	hbox->addWidget(closeButton, 1);

	vbox->addWidget(cheatSearchFrame);
	vbox->addLayout(hbox);

	mainLayout->addLayout(vbox);

	setLayout(mainLayout);

	modCheatBtn->setDefault(true);

	connect(srchResetBtn, SIGNAL(clicked(void)), this, SLOT(resetSearchCallback(void)));
	connect(knownValBtn, SIGNAL(clicked(void)), this, SLOT(knownValueCallback(void)));
	connect(eqValBtn, SIGNAL(clicked(void)), this, SLOT(equalValueCallback(void)));
	connect(neValBtn, SIGNAL(clicked(void)), this, SLOT(notEqualValueCallback(void)));
	connect(ltValBtn, SIGNAL(clicked(void)), this, SLOT(lessThanValueCallback(void)));
	connect(grValBtn, SIGNAL(clicked(void)), this, SLOT(greaterThanValueCallback(void)));
	connect(addCheatBtn, SIGNAL(clicked(void)), this, SLOT(addActvCheat(void)));
	connect(delCheatBtn, SIGNAL(clicked(void)), this, SLOT(deleteActvCheat(void)));
	connect(modCheatBtn, SIGNAL(clicked(void)), this, SLOT(updateCheatParameters(void)));
	connect(closeButton, SIGNAL(clicked(void)), this, SLOT(closeWindow(void)));

	connect(enaCheats, SIGNAL(stateChanged(int)), this, SLOT(globalEnableCheats(int)));
	connect(autoSave, SIGNAL(stateChanged(int)), this, SLOT(autoLoadSaveCheats(int)));
	connect(pauseBox, SIGNAL(stateChanged(int)), this, SLOT(pauseWindowState(int)));

	connect(importCheatFileBtn, SIGNAL(clicked(void)), this, SLOT(openCheatFile(void)));
	connect(exportCheatFileBtn, SIGNAL(clicked(void)), this, SLOT(saveCheatFile(void)));

	showActiveCheatList(true);

	restoreGeometry(settings.value("cheatsWindow/geometry").toByteArray());
}
//----------------------------------------------------------------------------
GuiCheatsDialog_t::~GuiCheatsDialog_t(void)
{
	QSettings settings;

	if (EmulationPaused && wasPausedByCheats)
	{
		EmulationPaused = 0;
		FCEU_printf("Emulation paused: %d\n", EmulationPaused);
	}
	wasPausedByCheats = false;

	settings.setValue("cheatsWindow/geometry", saveGeometry());

	win = NULL;
	//printf("Destroy Cheat Window Event\n");
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::closeEvent(QCloseEvent *event)
{
	QSettings settings;
	//printf("Cheat Close Window Event\n");
	settings.setValue("cheatsWindow/geometry", saveGeometry());
	done(0);
	deleteLater();
	event->accept();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::closeWindow(void)
{
	QSettings settings;
	//printf("Close Window\n");
	settings.setValue("cheatsWindow/geometry", saveGeometry());
	done(0);
	deleteLater();
}
//----------------------------------------------------------------------------
int GuiCheatsDialog_t::addSearchResult(uint32_t a, uint8_t last, uint8_t current)
{
	QTreeWidgetItem *item;
	char addrStr[8], lastStr[8], curStr[8];

	item = new QTreeWidgetItem();

	snprintf(addrStr, sizeof(addrStr), "$%04X", a);
	snprintf(lastStr, sizeof(lastStr), "%02X", last);
	snprintf(curStr, sizeof(curStr), "%02X", current);

	//item->setFont( 0, font );
	//item->setFont( 1, font );
	//item->setFont( 2, font );

	item->setText(0, tr(addrStr));
	item->setText(1, tr(lastStr));
	item->setText(2, tr(curStr));

	item->setTextAlignment(0, Qt::AlignCenter);
	item->setTextAlignment(1, Qt::AlignCenter);
	item->setTextAlignment(2, Qt::AlignCenter);

	srchResults->addTopLevelItem(item);

	return 1;
}
//----------------------------------------------------------------------------
static int ShowCheatSearchResultsCallB(uint32 a, uint8 last, uint8 current)
{
	return win->addSearchResult(a, last, current);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::showCheatSearchResults(void)
{
	int total_matches;

	win = this;

	srchResults->clear();

	total_matches = FCEUI_CheatSearchGetCount();

	FCEUI_CheatSearchGetRange(0, total_matches,
							  ShowCheatSearchResultsCallB);

	printf("Num Matches: %i \n", total_matches);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::resetSearchCallback(void)
{
	FCEU_WRAPPER_LOCK();

	FCEUI_CheatSearchBegin();

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();

	knownValBtn->setEnabled(true);
	eqValBtn->setEnabled(true);
	neValBtn->setEnabled(true);
	grValBtn->setEnabled(true);
	ltValBtn->setEnabled(true);

	useNeVal->setEnabled(true);
	useGrVal->setEnabled(true);
	useLtVal->setEnabled(true);

	knownValEntry->setEnabled(true);
	neValEntry->setEnabled(true);
	grValEntry->setEnabled(true);
	ltValEntry->setEnabled(true);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::knownValueCallback(void)
{
	int value;
	//printf("Cheat Search Known!\n");
	FCEU_WRAPPER_LOCK();

	//printf("'%s'\n", knownValEntry->displayText().toLocal8Bit().constData() );

	value = strtol(knownValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

	FCEUI_CheatSearchEnd(FCEU_SEARCH_NEWVAL_KNOWN, value, 0);

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::equalValueCallback(void)
{
	//printf("Cheat Search Equal!\n");
	FCEU_WRAPPER_LOCK();

	FCEUI_CheatSearchEnd(FCEU_SEARCH_PUERLY_RELATIVE_CHANGE, 0, 0);

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::notEqualValueCallback(void)
{
	//printf("Cheat Search Not Equal!\n");
	int value;
	int checked = useNeVal->checkState() != Qt::Unchecked;

	FCEU_WRAPPER_LOCK();

	if (checked)
	{
		value = strtol(neValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

		FCEUI_CheatSearchEnd(FCEU_SEARCH_PUERLY_RELATIVE_CHANGE, 0, value);
	}
	else
	{
		FCEUI_CheatSearchEnd(FCEU_SEARCH_ANY_CHANGE, 0, 0);
	}

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::greaterThanValueCallback(void)
{
	//printf("Cheat Search Greater Than!\n");
	int value;
	int checked = useGrVal->checkState() != Qt::Unchecked;

	FCEU_WRAPPER_LOCK();

	if (checked)
	{
		value = strtol(grValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

		FCEUI_CheatSearchEnd(FCEU_SEARCH_NEWVAL_GT_KNOWN, 0, value);
	}
	else
	{
		FCEUI_CheatSearchEnd(FCEU_SEARCH_NEWVAL_GT, 0, 0);
	}

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::lessThanValueCallback(void)
{
	//printf("Cheat Search Less Than!\n");
	int value;
	int checked = useLtVal->checkState() != Qt::Unchecked;

	FCEU_WRAPPER_LOCK();

	if (checked)
	{
		value = strtol(ltValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

		FCEUI_CheatSearchEnd(FCEU_SEARCH_NEWVAL_LT_KNOWN, 0, value);
	}
	else
	{
		FCEUI_CheatSearchEnd(FCEU_SEARCH_NEWVAL_LT, 0, 0);
	}

	showCheatSearchResults();

	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
int GuiCheatsDialog_t::activeCheatListCB(const char *name, uint32 a, uint8 v, int c, int s, int type, void *data)
{
	QTreeWidgetItem *item;
	char codeStr[32];

	if (c >= 0)
	{
		snprintf(codeStr, sizeof(codeStr), "$%04X?%02X:%02X", a, c, v);
	}
	else
	{
		snprintf(codeStr, sizeof(codeStr), "$%04X:%02X   ", a, v);
	}

	item = actvCheatList->topLevelItem(actvCheatIdx);

	if (item == NULL)
	{
		item = new QTreeWidgetItem(actvCheatList);
	}

	item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsUserCheckable | Qt::ItemNeverHasChildren);
	item->setCheckState(0, s ? Qt::Checked : Qt::Unchecked);

	item->setText(0, tr(codeStr));
	item->setText(1, tr(name));

	item->setTextAlignment(0, Qt::AlignLeft);
	item->setTextAlignment(1, Qt::AlignLeft);
	item->setTextAlignment(2, Qt::AlignLeft);

	actvCheatIdx++;

	return 1;
}
//----------------------------------------------------------------------------
static int activeCheatListCB(const char *name, uint32 a, uint8 v, int c, int s, int type, void *data)
{
	return win->activeCheatListCB(name, a, v, c, s, type, data);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::showActiveCheatList(bool redraw)
{
	win = this;

	enaCheats->setChecked(!globalCheatDisabled);

	if (redraw)
	{
		actvCheatList->clear();
	}
	actvCheatIdx = 0;

	FCEUI_ListCheats(::activeCheatListCB, (void *)this);

	actvCheatList->viewport()->update();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::openCheatFile(void)
{
	FILE *fp;
	int ret, useNativeFileDialogVal;
	QString filename;
	std::string last;
	std::string dir;
	QFileDialog dialog(this, tr("Open Cheat File"));

	dialog.setFileMode(QFileDialog::ExistingFile);

	dialog.setNameFilter(tr("Cheat files (*.cht *.CHT) ;; All files (*)"));

	dialog.setViewMode(QFileDialog::List);
	dialog.setFilter(QDir::AllEntries | QDir::AllDirs | QDir::Hidden);
	dialog.setLabelText(QFileDialog::Accept, tr("Open"));

	g_config->getOption("SDL.LastOpenFile", &last);

	getDirFromFile(last.c_str(), dir);

	dialog.setDirectory(tr(dir.c_str()));

	// Check config option to use native file dialog or not
	g_config->getOption("SDL.UseNativeFileDialog", &useNativeFileDialogVal);

	dialog.setOption(QFileDialog::DontUseNativeDialog, !useNativeFileDialogVal);

	ret = dialog.exec();

	if (ret)
	{
		QStringList fileList;
		fileList = dialog.selectedFiles();

		if (fileList.size() > 0)
		{
			filename = fileList[0];
		}
	}

	if (filename.isNull())
	{
		return;
	}
	qDebug() << "selected file path : " << filename.toLocal8Bit();

	g_config->setOption("SDL.LastOpenFile", filename.toLocal8Bit().constData());

	FCEU_WRAPPER_LOCK();

	fp = fopen(filename.toLocal8Bit().constData(), "r");

	if (fp != NULL)
	{
		FCEU_LoadGameCheats(fp, 0);
		fclose(fp);
	}
	FCEU_WRAPPER_UNLOCK();

	showActiveCheatList(true);

	return;
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::saveCheatFile(void)
{
	FILE *fp;
	int ret, useNativeFileDialogVal;
	QString filename;
	char dir[4096];
	QFileDialog dialog(this, tr("Save Cheat File"));

	dialog.setFileMode(QFileDialog::AnyFile);

	dialog.setNameFilter(tr("Cheat files (*.cht *.CHT) ;; All files (*)"));

	dialog.setViewMode(QFileDialog::List);
	dialog.setFilter(QDir::AllEntries | QDir::AllDirs | QDir::Hidden);
	dialog.setLabelText(QFileDialog::Accept, tr("Save"));

	if (GameInfo)
	{
		getFileBaseName(GameInfo->filename, dir);

		strcat(dir, ".cht");

		dialog.selectFile(dir);
	}

	snprintf(dir, sizeof(dir), "%s/cheats", FCEUI_GetBaseDirectory());

	dialog.setDirectory(tr(dir));

	// Check config option to use native file dialog or not
	g_config->getOption("SDL.UseNativeFileDialog", &useNativeFileDialogVal);

	dialog.setOption(QFileDialog::DontUseNativeDialog, !useNativeFileDialogVal);

	ret = dialog.exec();

	if (ret)
	{
		QStringList fileList;
		fileList = dialog.selectedFiles();

		if (fileList.size() > 0)
		{
			filename = fileList[0];
		}
	}

	if (filename.isNull())
	{
		return;
	}
	qDebug() << "selected file path : " << filename.toLocal8Bit();

	//g_config->setOption ("SDL.LastOpenFile", filename.toLocal8Bit().constData() );

	FCEU_WRAPPER_LOCK();

	fp = FCEUD_UTF8fopen(filename.toLocal8Bit().constData(), "wb");

	if (fp != NULL)
	{
		FCEU_SaveGameCheats(fp);
		fclose(fp);
	}
	FCEU_WRAPPER_UNLOCK();

	showActiveCheatList(true);

	return;
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::addActvCheat(void)
{
	uint32 a = 0;
	uint8 v = 0;
	int c = -1;
	int t = 1;
	std::string name, cmpStr;

	a = strtoul(cheatAddrEntry->displayText().toLocal8Bit().constData(), NULL, 16);

	v = strtoul(cheatValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

	cmpStr = cheatCmpEntry->displayText().toLocal8Bit().constData();

	if (isxdigit(cmpStr[0]))
	{
		c = strtoul(cmpStr.c_str(), NULL, 16);
	}
	else
	{
		c = -1;
	}

	name = cheatNameEntry->text().toLocal8Bit().constData();

	t = typeEntry->currentData().toInt();

	FCEU_WRAPPER_LOCK();
	FCEUI_AddCheat(name.c_str(), a, v, c, t);
	FCEU_WRAPPER_UNLOCK();

	showActiveCheatList(true);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::deleteActvCheat(void)
{
	QTreeWidgetItem *item;

	item = actvCheatList->currentItem();

	if (item == NULL)
	{
		printf("No Item Selected\n");
		return;
	}

	int row = actvCheatList->indexOfTopLevelItem(item);

	FCEU_WRAPPER_LOCK();
	FCEUI_DelCheat(row);
	FCEU_WRAPPER_UNLOCK();

	showActiveCheatList(true);

	cheatNameEntry->setText(tr(""));
	cheatAddrEntry->setText(tr(""));
	cheatValEntry->setText(tr(""));
	cheatCmpEntry->setText(tr(""));
	typeEntry->setCurrentIndex(0);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::updateCheatParameters(void)
{
	uint32 a = 0;
	uint8 v = 0;
	int c = -1, s = 0, type = 0;
	std::string name, cmpStr;
	QTreeWidgetItem *item;

	item = actvCheatList->currentItem();

	if (item == NULL)
	{
		printf("No Item Selected\n");
		return;
	}

	int row = actvCheatList->indexOfTopLevelItem(item);

	if (FCEUI_GetCheat(row, NULL, &a, &v, &c, &s, &type) == 0)
	{
		return;
	}
	//printf("Row: %i \n", row );

	a = strtoul(cheatAddrEntry->displayText().toLocal8Bit().constData(), NULL, 16);

	v = strtoul(cheatValEntry->displayText().toLocal8Bit().constData(), NULL, 16);

	cmpStr = cheatCmpEntry->displayText().toLocal8Bit().constData();

	//printf("CMP: '%s' \n", cmpStr.c_str() );

	if (isxdigit(cmpStr[0]))
	{
		c = strtoul(cmpStr.c_str(), NULL, 16);
	}
	else
	{
		c = -1;
	}
	//printf("CMP: '%i' 0x%X\n", c, c );

	name = cheatNameEntry->text().toLocal8Bit().constData();

	//printf("Name: %s \n", name.c_str() );

	type = typeEntry->currentData().toInt();

	FCEU_WRAPPER_LOCK();

	FCEUI_SetCheat(row, &name, a, v, c, s, type);

	FCEU_WRAPPER_UNLOCK();

	showActiveCheatList(false);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::actvCheatItemClicked(QTreeWidgetItem *item, int column)
{
	uint32 a = 0;
	uint8 v = 0;
	int c = -1, s = 0, type = 0;
	std::string name;
	char stmp[64];

	int row = actvCheatList->indexOfTopLevelItem(item);

	//printf("Row: %i Column: %i \n", row, column );

	if (FCEUI_GetCheat(row, &name, &a, &v, &c, &s, &type) == 0)
	{
		return;
	}

	if (column == 0)
	{
		int isChecked = item->checkState(column) != Qt::Unchecked;

		if (isChecked != s)
		{
			//printf("Toggle Cheat: %i\n", isChecked);
			FCEUI_ToggleCheat(row);
		}
	}
	snprintf(stmp, sizeof(stmp), "%04X", a);
	cheatAddrEntry->setText(tr(stmp));

	snprintf(stmp, sizeof(stmp), "%02X", v);
	cheatValEntry->setText(tr(stmp));

	if (c >= 0)
	{
		snprintf(stmp, sizeof(stmp), "%02X", c);
		cheatCmpEntry->setText(tr(stmp));
	}
	else
	{
		cheatCmpEntry->setText(tr(""));
	}

	cheatNameEntry->setText(tr(name.c_str()));

	typeEntry->setCurrentIndex(type);
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::globalEnableCheats(int state)
{
	int val = state != Qt::Unchecked;

	g_config->setOption("SDL.CheatsDisabled", !val);
	g_config->save();

	FCEU_WRAPPER_LOCK();
	FCEUI_GlobalToggleCheat(val);
	FCEU_WRAPPER_UNLOCK();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::autoLoadSaveCheats(int state)
{
	if (state == Qt::Unchecked)
	{
		int ret;
		const char *msg = "If this option is unchecked, you must manually save the cheats by yourself, or all the changes you made to the cheat list would be discarded silently without any asking once you close the game!\nDo you really want to do it in this way?";

		ret = QMessageBox::warning( this, QObject::tr("Cheat Manual Save Warning"),
			QString::fromStdString(msg), QMessageBox::Yes | QMessageBox::No );

		if ( ret == QMessageBox::Yes )
		{
			disableAutoLSCheats = 2;
		}
		else
		{
			autoSave->setCheckState( Qt::Checked );
		}
	}
	else
	{
		disableAutoLSCheats = 0;
	}
	g_config->setOption("SDL.CheatsDisableAutoLS", disableAutoLSCheats);
	g_config->save();
}
//----------------------------------------------------------------------------
void GuiCheatsDialog_t::pauseWindowState(int state)
{
	pauseWhileActive = (state != Qt::Unchecked);

	g_config->setOption("SDL.CheatsWindowPause", pauseWhileActive);
	g_config->save();

	if (pauseWhileActive)
	{
		if (EmulationPaused == 0)
		{
			EmulationPaused = 1;
			wasPausedByCheats = true;
		}
	}
	else
	{
		if (EmulationPaused && wasPausedByCheats)
		{
			EmulationPaused = 0;
		}
		wasPausedByCheats = false;
	}
	FCEU_printf("Emulation paused: %d\n", EmulationPaused);
}
//----------------------------------------------------------------------------
