path: root/clients/tde/src/part/companalyzer/part.cpp

/*
 * Remote Laboratory Component Analyzer Part
 *
 * 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 3 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.
 *
 * (c) 2014 - 2015 Timothy Pearson
 * Raptor Engineering
 * http://www.raptorengineeringinc.com
 */

#include "define.h"
#include "part.h"

#include <tdeaboutdata.h>   //::createAboutData()
#include <tdeaction.h>
#include <tdelocale.h>
#include <tdemessagebox.h>  //::start()
#include <tdeparts/genericfactory.h>
#include <kurlrequester.h>
#include <tdefiledialog.h>
#include <kstatusbar.h>
#include <kstdaction.h>
#include <tqfile.h>        //encodeName()
#include <tqtimer.h>
#include <tqvbox.h>
#include <tqsocket.h>
#include <tqmutex.h>
#include <tqeventloop.h>
#include <tqapplication.h>
#include <tqpushbutton.h>
#include <tqcombobox.h>
#include <tqcheckbox.h>
#include <klineedit.h>
#include <ktextedit.h>
#include <unistd.h>       //access()
#include <stdint.h>
#include <cmath>

#include "layout.h"

#include "tracewidget.h"
#include "floatspinbox.h"

#define NETWORK_COMM_TIMEOUT_MS 15000

/* exception handling */
struct exit_exception {
	int c;
	exit_exception(int c):c(c) { }
};

namespace RemoteLab {

typedef KParts::GenericFactory<RemoteLab::CompAnalyzerPart> Factory;
#define CLIENT_LIBRARY "libremotelab_companalyzer"
K_EXPORT_COMPONENT_FACTORY( libremotelab_companalyzer, RemoteLab::Factory )

#ifndef QT_NO_DATASTREAM
TQDataStream &operator<<( TQDataStream &s, const CompAnalyzerMeasurement &data ) {
	s << data.status;
	s << data.parameter;
	s << data.type;
	s << data.value;
	s << data.frequency;
	return s;
}

TQDataStream &operator>>( TQDataStream &s, CompAnalyzerMeasurement &data ) {
	s >> data.status;
	s >> data.parameter;
	s >> data.type;
	s >> data.value;
	s >> data.frequency;
	return s;
}
#endif

CompAnalyzerWorker::CompAnalyzerWorker() : TQObject() {
	m_sweepStepMutex = new TQMutex(false);
	m_currentStateMutex = new TQMutex(false);
	m_networkDataMutex = new TQMutex(false);
	m_outboundQueueMutex = new TQMutex(false);
	m_inboundQueueMutex = new TQMutex(false);
	m_newData = false;
	m_currentState = Initializing;
	m_startupState = StartSelectInstrument;
	m_lastNetworkTransmissionEvent = NoEvent;
}

CompAnalyzerWorker::~CompAnalyzerWorker() {
	delete m_sweepStepMutex;
	m_sweepStepMutex = NULL;
	delete m_currentStateMutex;
	m_currentStateMutex = NULL;
	delete m_networkDataMutex;
	m_networkDataMutex = NULL;
	delete m_inboundQueueMutex;
	m_inboundQueueMutex = NULL;
	delete m_outboundQueueMutex;
	m_outboundQueueMutex = NULL;
}

void CompAnalyzerWorker::run() {
	TQEventLoop* eventLoop = TQApplication::eventLoop();
	if (!eventLoop) {
		return;
	}

	while (1) {
		m_instrumentMutex->lock();

		CompAnalyzerPartState state = currentState();
		CompAnalyzerEventType lastTxEvent = m_lastNetworkTransmissionEvent;

		// Handle inbound queue
		m_inboundQueueMutex->lock();
		if (m_inboundQueue.count() > 0) {
			TQDataStream ds(m_socket);
			ds.setPrintableData(true);

			CompAnalyzerEventQueue::iterator it;
			for (it = m_inboundQueue.begin(); it != m_inboundQueue.end(); ++it) {
				if ((*it).first == TxRxSyncPoint) {
					break;
				}
				else if ((*it).first == Initialize) {
					setCurrentState(Initializing);
					m_lastNetworkTransmissionEvent = OtherEvent;
					ds << TQString("COMPONENT ANALYZER");
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}
				else if ((*it).first == GetMeasurement) {
					m_lastNetworkTransmissionEvent = GetMeasurement;
					ds << TQString("GETMEASUREMENT");
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}
				else if ((*it).first == GetMaximumFrequency) {
					m_lastNetworkTransmissionEvent = GetMaximumFrequency;
					ds << TQString("GETMAXMEASUREMENTFREQUENCY");
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}
				else if ((*it).first == GetMinimumFrequency) {
					m_lastNetworkTransmissionEvent = GetMinimumFrequency;
					ds << TQString("GETMINMEASUREMENTFREQUENCY");
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}
				else if ((*it).first == SetFrequency) {
					m_lastNetworkTransmissionEvent = SetFrequency;
					ds << TQString("SETMEASUREMENTFREQUENCY");
					ds << (*it).second.toDouble();
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}
				else if ((*it).first == ChangeMeasurementSource) {
					m_lastNetworkTransmissionEvent = ChangeMeasurementSource;
					TQ_UINT8 number_of_parameters = 2;
					ds << TQString("SETMEASUREDPARAMETERS");
					ds << number_of_parameters;
					ds << m_sourceList[0];
					ds << m_sourceList[1];
					m_socket->writeEndOfFrame();
					it = m_inboundQueue.erase(it);
				}

				// If the next command is a sync point stop command list execution
				if ((*it).first == TxRxSyncPoint) {
					break;
				}
			}
			m_socket->flush();
		}
		m_inboundQueueMutex->unlock();

		// Handle outbound queue
		if (m_newData) {
			bool queue_modified = false;
			m_networkDataMutex->lock();
			m_newData = false;

			// Receive data
			if (m_socket->canReadFrame()) {
				TQDataStream ds(m_socket);
				ds.setPrintableData(true);

				while (!ds.atEnd() && m_socket->canReadFrame(false)) {
					// Get command status
					TQString input;
					ds >> input;

					if (input == "") {
						continue;
					}

					// Response received
					clearInboundQueueSyncPoint();

					if (state == Initializing) {
						if (input == "ACK") {
							if (m_startupState == StartSelectInstrument) {
								m_startupState = StartGetMaximumFrequency;
								appendItemToInboundQueue(CompAnalyzerEvent(GetMaximumFrequency, TQVariant()), true);
							}
							else if (m_startupState == StartGetMaximumFrequency) {
								ds >> m_instrumentLimits.maxFrequency;

								m_startupState = StartGetMinimumFrequency;
								appendItemToInboundQueue(CompAnalyzerEvent(GetMinimumFrequency, TQVariant()), true);
							}
							else if (m_startupState == StartGetMinimumFrequency) {
								ds >> m_instrumentLimits.minFrequency;

								// TODO
								// This should be loaded from the instrument
								// Add requisite functionality to the GPIB server and then
								// update this routine to use it....
								m_instrumentLimits.allowedMeasurements.clear();
								AllowedMeasurementInfoList parameterASourceValues;
								parameterASourceValues.append(AllowedMeasurementInfo(0, i18n("Resistance")));
								parameterASourceValues.append(AllowedMeasurementInfo(2, i18n("Conductance")));
								parameterASourceValues.append(AllowedMeasurementInfo(4, i18n("Inductance")));
								parameterASourceValues.append(AllowedMeasurementInfo(5, i18n("Capacitance")));
								parameterASourceValues.append(AllowedMeasurementInfo(8, i18n("Impedance")));
								parameterASourceValues.append(AllowedMeasurementInfo(9, i18n("Admittance")));
								parameterASourceValues.append(AllowedMeasurementInfo(10, i18n("Reflection Coefficient (Absolute)")));
								parameterASourceValues.append(AllowedMeasurementInfo(11, i18n("Reflection Coefficient (X)")));
								AllowedMeasurementInfoList parameterBSourceValues;
								parameterBSourceValues.append(AllowedMeasurementInfo(0, i18n("Resistance")));
								parameterBSourceValues.append(AllowedMeasurementInfo(2, i18n("Conductance")));
								parameterBSourceValues.append(AllowedMeasurementInfo(6, i18n("Dissipation Factor")));
								parameterBSourceValues.append(AllowedMeasurementInfo(7, i18n("Quality Factor")));
								parameterBSourceValues.append(AllowedMeasurementInfo(13, i18n("Phase Angle (°)")));
								parameterBSourceValues.append(AllowedMeasurementInfo(14, i18n("Phase Angle (radians)")));
								m_instrumentLimits.allowedMeasurements.append(parameterASourceValues);
								m_instrumentLimits.allowedMeasurements.append(parameterBSourceValues);

								m_startupState = StartDone;
								setCurrentState(FreeRunning);

								// Request first measurement
								appendItemToInboundQueue(CompAnalyzerEvent(GetMeasurement, TQVariant()), true);

								// Notify GUI that new configuration data is available
								m_outboundQueueMutex->lock();
								m_outboundQueue.push_back(CompAnalyzerEvent(ConfigurationDataReceived, TQVariant()));
								m_outboundQueueMutex->unlock();
							}
						}
						else {
							setCurrentState(CommunicationFailure);
						}
						queue_modified = true;
					}
					else if ((state == FreeRunning) || (state == FrequencySweepRead)) {
						if (input == "ACK") {
							if (lastTxEvent == GetMeasurement) {
								int i;
								CompAnalyzerMeasurement measurement;
								CompAnalyzerMeasurementList measurements;
								TQ_UINT8 number_of_parameters;
								ds >> number_of_parameters;
								for (i=0; i < number_of_parameters; i++) {
									ds >> measurement.status;
									ds >> measurement.parameter;
									ds >> measurement.type;
									ds >> measurement.value;
									ds >> measurement.frequency;
									measurements.append(measurement);
								}

								if (nextInboundQueueEvent() == StartSweep) {
									eraseNextInboundQueueEvent(true);
	
									// Set initial sweep frequency
									m_sweepCurrentFrequency = m_sweepStart;
									m_sweepStepMutex->lock();
									m_sweepStepNumber = 0;
									m_sweepStepMutex->unlock();
									appendItemToInboundQueue(CompAnalyzerEvent(SetFrequency, TQVariant(m_sweepCurrentFrequency)), true);
									setCurrentState(FrequencySweepWrite);
								}
								else if (nextInboundQueueEvent() == AbortSweep) {
									eraseNextInboundQueueEvent(true);
	
									// Exit sweep mode
									setCurrentState(FreeRunning);

									// Request measurement
									appendItemToInboundQueue(CompAnalyzerEvent(GetMeasurement, TQVariant()), true);
								}
								else {
									if (state == FrequencySweepRead) {
										// Set up next measurement frequency
										m_sweepCurrentFrequency += m_sweepStep;
										m_sweepStepMutex->lock();
										m_sweepStepNumber++;
										m_sweepStepMutex->unlock();
	
										if (m_sweepCurrentFrequency <= m_sweepEnd) {
											// Set next sweep frequency step
											appendItemToInboundQueue(CompAnalyzerEvent(SetFrequency, TQVariant(m_sweepCurrentFrequency)), true);
											setCurrentState(FrequencySweepWrite);
										}
										else {
											// Exit sweep mode
											setCurrentState(FreeRunning);
	
											// Request measurement
											appendItemToInboundQueue(CompAnalyzerEvent(GetMeasurement, TQVariant()), true);
										}
									}
									else {
										// Request another measurement
										appendItemToInboundQueue(CompAnalyzerEvent(GetMeasurement, TQVariant()), true);
									}
								}
	
								// Send data to GUI
								TQByteArray measurementStreamData;
								{
									TQDataStream measurementStream(measurementStreamData, IO_WriteOnly);
									measurementStream << measurements;
									measurementStream << m_sweepStepNumber - 1;
								}
								m_outboundQueueMutex->lock();
								if (state == FrequencySweepRead) {
									m_outboundQueue.push_back(CompAnalyzerEvent(SweepMeasurementsReceived, TQVariant(measurementStreamData)));
								}
								else {
									m_outboundQueue.push_back(CompAnalyzerEvent(MeasurementsReceived, TQVariant(measurementStreamData)));
								}
								m_outboundQueueMutex->unlock();
							}
						}
						else if (input.startsWith("EXT")) {
							// Extended error
							TQString extendedError = input.remove(0, 3);
							m_outboundQueue.push_back(CompAnalyzerEvent(ExtendedErrorReceived, TQVariant(extendedError)));
							setCurrentState(CommunicationFailure);
						}
						else {
							setCurrentState(CommunicationFailure);
						}
						queue_modified = true;
					}
					else if ((state == FreeRunning) || (state == FrequencySweepWrite)) {
						// Request another measurement
						appendItemToInboundQueue(CompAnalyzerEvent(GetMeasurement, TQVariant()), true);
						setCurrentState(FrequencySweepRead);
					}
					m_socket->clearFrameTail();
				}
			}
			m_networkDataMutex->unlock();

			if (queue_modified) {
				emit(outboundQueueUpdated());
			}
		}

		m_instrumentMutex->unlock();

		// Wait for queue status change or new network activity
		if (!eventLoop->processEvents(TQEventLoop::ExcludeUserInput)) {
			eventLoop->processEvents(TQEventLoop::ExcludeUserInput | TQEventLoop::WaitForMore);
		}
	}

	eventLoop->exit(0);
}

void CompAnalyzerWorker::resetInboundQueue() {
	m_inboundQueueMutex->lock();
	m_inboundQueue.clear();
	m_inboundQueueMutex->unlock();
}

void CompAnalyzerWorker::appendItemToInboundQueue(CompAnalyzerEvent item, bool syncPoint) {
	m_inboundQueueMutex->lock();
	m_inboundQueue.push_back(item);
	if (syncPoint) {
		m_inboundQueue.push_back(CompAnalyzerEvent(TxRxSyncPoint, TQVariant()));
	}
	m_inboundQueueMutex->unlock();
}

bool CompAnalyzerWorker::itemTypeInInboundQueue(CompAnalyzerEventType type) {
	bool ret = false;

	m_inboundQueueMutex->lock();
	CompAnalyzerEventQueue::iterator it;
	for (it = m_inboundQueue.begin(); it != m_inboundQueue.end(); ++it) {
		if ((*it).first == type) {
			ret = true;
		}
	}
	m_inboundQueueMutex->unlock();

	return ret;
}

bool CompAnalyzerWorker::syncPointActive() {
	bool active = false;

	m_inboundQueueMutex->lock();
	CompAnalyzerEventQueue::iterator it = m_inboundQueue.begin();
	if ((it) && (it != m_inboundQueue.end())) {
		if ((*it).first == TxRxSyncPoint) {
			active = true;
		}
	}
	m_inboundQueueMutex->unlock();

	return active;
}

void CompAnalyzerWorker::wake() {
	// Do nothing -- the main event loop will wake when this is called
}

void CompAnalyzerWorker::dataReceived() {
	if (!m_networkDataMutex->tryLock()) {
		TQTimer::singleShot(0, this, TQT_SLOT(dataReceived()));
	}
	else {
		m_newData = true;
		m_networkDataMutex->unlock();
	}
}

void CompAnalyzerWorker::lockOutboundQueue() {
	m_outboundQueueMutex->lock();
}

void CompAnalyzerWorker::unlockOutboundQueue() {
	m_outboundQueueMutex->unlock();
}

CompAnalyzerEventQueue* CompAnalyzerWorker::outboundQueue() {
	return &m_outboundQueue;
}

CompAnalyzerEventType CompAnalyzerWorker::nextInboundQueueEvent() {
	CompAnalyzerEventType ret = NoEvent;

	m_inboundQueueMutex->lock();
	CompAnalyzerEventQueue::iterator it = m_inboundQueue.begin();
	if ((it) && (it != m_inboundQueue.end())) {
		ret = (*it).first;
	}
	m_inboundQueueMutex->unlock();

	return ret;
}

void CompAnalyzerWorker::clearInboundQueueSyncPoint() {
	m_inboundQueueMutex->lock();
	CompAnalyzerEventQueue::iterator it = m_inboundQueue.begin();
	if ((it) && (it != m_inboundQueue.end())) {
		if ((*it).first == TxRxSyncPoint) {
			m_inboundQueue.erase(it);
		}
	}
	m_inboundQueueMutex->unlock();
}

void CompAnalyzerWorker::eraseNextInboundQueueEvent(bool clearSyncPoint) {
	m_inboundQueueMutex->lock();
	CompAnalyzerEventQueue::iterator it = m_inboundQueue.begin();
	if ((it) && (it != m_inboundQueue.end())) {
		m_inboundQueue.erase(it);
	}
	if (clearSyncPoint) {
		it = m_inboundQueue.begin();
		if ((it) && (it != m_inboundQueue.end())) {
			if ((*it).first == TxRxSyncPoint) {
				m_inboundQueue.erase(it);
			}
		}
	}
	m_inboundQueueMutex->unlock();
}

CompAnalyzerInstrumentLimits CompAnalyzerWorker::getInstrumentLimits() {
	return m_instrumentLimits;
}

void CompAnalyzerWorker::setNewParameterSourceList(TQValueList<TQ_UINT32> list) {
	m_sourceList = list;
}

CompAnalyzerPartState CompAnalyzerWorker::currentState() {
	CompAnalyzerPartState ret;

	m_currentStateMutex->lock();
	ret = m_currentState;
	m_currentStateMutex->unlock();

	return ret;
}

void CompAnalyzerWorker::setCurrentState(CompAnalyzerPartState state) {
	CompAnalyzerPartState prevState = m_currentState;

	m_currentStateMutex->lock();
	m_currentState = state;
	m_currentStateMutex->unlock();

	if (m_currentState != prevState) {
		m_outboundQueueMutex->lock();
		m_outboundQueue.push_back(CompAnalyzerEvent(StateChanged, TQVariant()));
		m_outboundQueueMutex->unlock();
	}
}

void CompAnalyzerWorker::setSweepStartFrequency(double hz) {
	m_sweepStart = hz;
}

void CompAnalyzerWorker::setSweepEndFrequency(double hz) {
	m_sweepEnd = hz;
}

double CompAnalyzerWorker::sweepStartFrequency() {
	return m_sweepStart;
}

double CompAnalyzerWorker::sweepEndFrequency() {
	return m_sweepEnd;
}

double CompAnalyzerWorker::sweepStepFrequency() {
	return m_sweepStep;
}

void CompAnalyzerWorker::setSweepStepFrequency(double hz) {
	m_sweepStep = hz;
}

unsigned int CompAnalyzerWorker::sweepStepNumber() {
	unsigned int ret;

	m_sweepStepMutex->lock();
	ret = m_sweepStepNumber;
	m_sweepStepMutex->unlock();

	return ret;
}

CompAnalyzerPart::CompAnalyzerPart( TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name, const TQStringList& )
	: RemoteInstrumentPart( parent, name ), m_commHandlerState(-1), m_commHandlerMode(0), m_commHandlerCommandState(0), m_connectionActiveAndValid(false), m_instrumentSettingsValid(false), m_base(0)
{
	// Initialize important base class variables
	m_clientLibraryName = CLIENT_LIBRARY;

	// Initialize mutex
	m_instrumentMutex = new TQMutex(false);

	// Initialize kpart
	setInstance(Factory::instance());
	setWidget(new TQVBox(parentWidget, widgetName));

	// Set up worker
	m_worker = new CompAnalyzerWorker();
	m_workerThread = new TQEventLoopThread();
	m_worker->moveToThread(m_workerThread);
	TQObject::connect(this, TQT_SIGNAL(wakeWorkerThread()), m_worker, TQT_SLOT(wake()));
	TQObject::connect(m_worker, TQT_SIGNAL(outboundQueueUpdated()), this, TQT_SLOT(processOutboundQueue()));

	// Create timers
	m_updateTimeoutTimer = new TQTimer(this);
	connect(m_updateTimeoutTimer, SIGNAL(timeout()), this, SLOT(networkTimeout()));

	// Create widgets
	m_base = new CompAnalyzerBase(widget());

	// Initialize widgets
	m_base->setMinimumSize(500, 350);

	m_base->parameterADisplay->setNumberOfDigits(12);
	m_base->parameterBDisplay->setNumberOfDigits(12);
	m_base->frequencyDisplay->setNumberOfDigits(12);

	m_traceWidget = m_base->traceWidget;
	m_traceWidget->setSizePolicy(TQSizePolicy(TQSizePolicy::MinimumExpanding, TQSizePolicy::MinimumExpanding));
	m_traceWidget->setNumberOfCursors(4);
	m_traceWidget->setZoomCursorStartIndex(0);
	m_traceWidget->setCursorOrientation(0, TQt::Horizontal);
	m_traceWidget->setCursorOrientation(1, TQt::Horizontal);
	m_traceWidget->setCursorOrientation(2, TQt::Vertical);
	m_traceWidget->setCursorOrientation(3, TQt::Vertical);
	m_traceWidget->setCursorEnabled(0, true);
	m_traceWidget->setCursorEnabled(1, true);
	m_traceWidget->setCursorEnabled(2, true);
	m_traceWidget->setCursorEnabled(3, true);
	m_traceWidget->setCursorName(0, "Cursor H1");
	m_traceWidget->setCursorName(1, "Cursor H2");
	m_traceWidget->setCursorName(2, "Cursor V1");
	m_traceWidget->setCursorName(3, "Cursor V2");
	m_traceWidget->setCursorPosition(0, 25);
	m_traceWidget->setCursorPosition(1, 75);
	m_traceWidget->setCursorPosition(2, 25);
	m_traceWidget->setCursorPosition(3, 75);
	TraceNumberList activeTraces;
	for (uint trace=0; trace<MAXTRACES; trace++) {
		activeTraces.append(trace);
	}
	m_traceWidget->setCursorActiveTraceList(0, activeTraces);
	m_traceWidget->setCursorActiveTraceList(1, activeTraces);
	m_traceWidget->setCursorActiveTraceList(2, activeTraces);
	m_traceWidget->setCursorActiveTraceList(3, activeTraces);
	m_traceWidget->setZoomBoxEnabled(true);

	connect(m_base->parameterASourceCombo, SIGNAL(activated(int)), this, SLOT(parameterASourceChanged(int)));
	connect(m_base->parameterBSourceCombo, SIGNAL(activated(int)), this, SLOT(parameterBSourceChanged(int)));
	connect(m_base->measurementFrequencyBox, SIGNAL(floatValueChanged(double)), this, SLOT(frequencyInputChanged(double)));

	connect(m_base->sweepStartFrequencyBox, SIGNAL(floatValueChanged(double)), this, SLOT(processLockouts()));
	connect(m_base->sweepEndFrequencyBox, SIGNAL(floatValueChanged(double)), this, SLOT(processLockouts()));
	connect(m_base->sweepStepFrequencyBox, SIGNAL(floatValueChanged(double)), this, SLOT(processLockouts()));

	m_base->traceZoomWidget->setSizePolicy(TQSizePolicy(TQSizePolicy::MinimumExpanding, TQSizePolicy::MinimumExpanding));
	connect(m_traceWidget, SIGNAL(zoomBoxChanged(const TQRectF&)), this, SLOT(updateZoomWidgetLimits(const TQRectF&)));

	connect(m_base->sweepStartButton, SIGNAL(clicked()), this, SLOT(startSweepClicked()));
	connect(m_base->sweepStopButton, SIGNAL(clicked()), this, SLOT(stopSweepClicked()));
	connect(m_base->waveformSave, SIGNAL(clicked()), this, SLOT(saveWaveforms()));
	connect(m_base->waveformRecall, SIGNAL(clicked()), this, SLOT(recallWaveforms()));
	connect(m_base->autoSave, SIGNAL(clicked()), this, SLOT(processLockouts()));

	// Initialize data
	m_hdivs = 10;
	m_vdivs = 8;
	m_maxNumberOfTraces = 2;
	for (int traceno=0; traceno<=MAXTRACES; traceno++) {
		m_samplesInTrace[traceno] = 0;
		m_channelActive[traceno] = false;
		m_traceUnits[traceno] = "";
	}
	updateGraticule();

	TQTimer::singleShot(0, this, TQT_SLOT(postInit()));
}

CompAnalyzerPart::~CompAnalyzerPart() {
	if (m_instrumentMutex->locked()) {
		printf("[WARNING] Exiting when data transfer still in progress!\n\r"); fflush(stdout);
	}

	disconnectFromServer();
	delete m_instrumentMutex;

	if (m_workerThread) {
		m_workerThread->terminate();
		m_workerThread->wait();
		delete m_workerThread;
		m_workerThread = NULL;
		delete m_worker;
		m_worker = NULL;
	}
}

void CompAnalyzerPart::postInit() {
	setUsingFixedSize(false);
}

bool CompAnalyzerPart::openURL(const KURL &url) {
	int ret;
	m_connectionActiveAndValid = false;
	ret = connectToServer(url.url());
	processLockouts();
	return (ret != 0);
}

bool CompAnalyzerPart::closeURL() {
	disconnectFromServer();
	m_url = KURL();
	return true;
}

void CompAnalyzerPart::processLockouts() {
	CompAnalyzerPartState state = m_worker->currentState();

	if (m_connectionActiveAndValid) {
		m_base->setEnabled(true);
	}
	else {
		m_base->setEnabled(false);
	}

	if ((state == FrequencySweepWrite) || (state == FrequencySweepRead)) {
		m_base->sweepStartButton->setEnabled(false);
		if (!m_worker->itemTypeInInboundQueue(AbortSweep)) {
			m_base->sweepStopButton->setEnabled(true);
		}
		else {
			m_base->sweepStopButton->setEnabled(false);
		}
		m_base->parameterASourceCombo->setEnabled(false);
		m_base->parameterBSourceCombo->setEnabled(false);
		m_base->measurementFrequencyBox->setEnabled(false);
		m_base->sweepStartFrequencyBox->setEnabled(false);
		m_base->sweepEndFrequencyBox->setEnabled(false);
		m_base->sweepStepFrequencyBox->setEnabled(false);
		m_base->waveformRecall->setEnabled(false);
	}
	else {
		if (m_base->sweepEndFrequencyBox->floatValue() > m_base->sweepStartFrequencyBox->floatValue()) {
			if (!m_worker->itemTypeInInboundQueue(StartSweep)) {
				m_base->sweepStartButton->setEnabled(true);
			}
			else {
				m_base->sweepStartButton->setEnabled(true);
			}
		}
		else {
			m_base->sweepStartButton->setEnabled(false);
		}
		m_base->sweepStopButton->setEnabled(false);
		if (m_instrumentSettingsValid) {
			m_base->parameterASourceCombo->setEnabled(true);
			m_base->parameterBSourceCombo->setEnabled(true);
			m_base->measurementFrequencyBox->setEnabled(true);
		}
		else {
			m_base->parameterASourceCombo->setEnabled(false);
			m_base->parameterBSourceCombo->setEnabled(false);
			m_base->measurementFrequencyBox->setEnabled(false);
		}
		m_base->sweepStartFrequencyBox->setEnabled(true);
		m_base->sweepEndFrequencyBox->setEnabled(true);
		m_base->sweepStepFrequencyBox->setEnabled(true);
		m_base->waveformRecall->setEnabled(true);
	}

	if (m_base->autoSave->isOn()) {
		m_base->autoSaveFile->setEnabled(true);
	}
	else {
		m_base->autoSaveFile->setEnabled(false);
	}
}

void CompAnalyzerPart::disconnectFromServerCallback() {
	m_updateTimeoutTimer->stop();
	m_connectionActiveAndValid = false;
}

void CompAnalyzerPart::connectionFinishedCallback() {
	// Finish worker setup
	m_worker->m_socket = m_socket;
	m_worker->m_instrumentMutex = m_instrumentMutex;
	m_socket->moveToThread(m_workerThread);
	m_worker->appendItemToInboundQueue(CompAnalyzerEvent(Initialize, TQVariant()), true);

	connect(m_socket, SIGNAL(readyRead()), m_socket, SLOT(processPendingData()));
	m_socket->processPendingData();
	connect(m_socket, SIGNAL(newDataReceived()), m_worker, SLOT(dataReceived()));
	m_tickerState = 0;
	m_commHandlerState = 0;
	m_commHandlerMode = 0;
	m_socket->setDataTimeout(NETWORK_COMM_TIMEOUT_MS);
	m_updateTimeoutTimer->start(NETWORK_COMM_TIMEOUT_MS, TRUE);

	// Start worker
	m_workerThread->start();
	TQTimer::singleShot(0, m_worker, SLOT(run()));

	processLockouts();
	networkTick();
	return;
}

void CompAnalyzerPart::connectionStatusChangedCallback() {
	processLockouts();
}

void CompAnalyzerPart::setTickerMessage(TQString message) {
	m_connectionActiveAndValid = true;
	TQString tickerChar;
	switch (m_tickerState) {
		case 0:
			tickerChar = "-";
			break;
		case 1:
			tickerChar = "\\";
			break;
		case 2:
			tickerChar = "|";
			break;
		case 3:
			tickerChar = "/";
			break;
	}
	setStatusMessage(message + TQString("... %1").arg(tickerChar));
	m_tickerState++;
	if (m_tickerState > 3) {
		m_tickerState = 0;
	}
}

void CompAnalyzerPart::patWatchDog() {
	m_updateTimeoutTimer->stop();
}

void CompAnalyzerPart::requestNetworkOperation(CompAnalyzerEvent item, bool syncPoint) {
	m_updateTimeoutTimer->stop();
	m_worker->appendItemToInboundQueue(item, syncPoint);
	m_updateTimeoutTimer->start(NETWORK_COMM_TIMEOUT_MS, TRUE);
	emit(wakeWorkerThread());
}

void CompAnalyzerPart::processOutboundQueue() {
	bool had_events = false;

	m_worker->lockOutboundQueue();

	CompAnalyzerEventQueue* eventQueue = m_worker->outboundQueue();
	CompAnalyzerEventQueue::iterator it;
	for (it = eventQueue->begin(); it != eventQueue->end(); ++it) {
		patWatchDog();

		if ((*it).first == StateChanged) {
			CompAnalyzerPartState state = m_worker->currentState();
			if (m_connectionActiveAndValid) {
				if (state == CommunicationFailure) {
					networkTimeout();
				}
			}
		}
		else if ((*it).first == ExtendedErrorReceived) {
			m_updateTimeoutTimer->stop();
			m_socket->clearIncomingData();
			setStatusMessage((*it).second.toString());
			m_connectionActiveAndValid = false;
			processLockouts();

			// Try to recover
			m_worker->resetInboundQueue();
			requestNetworkOperation(CompAnalyzerEvent(Initialize, TQVariant()), true);
		}
		else if ((*it).first == ConfigurationDataReceived) {
			// Get configuration data
			CompAnalyzerInstrumentLimits instrumentLimits = m_worker->getInstrumentLimits();
			m_parameterSourceValues = instrumentLimits.allowedMeasurements;

			m_base->measurementFrequencyBox->setLineStep(1);
			m_base->measurementFrequencyBox->setFloatMax(instrumentLimits.maxFrequency / 1000000.0);
			m_base->measurementFrequencyBox->setFloatMin(instrumentLimits.minFrequency / 1000000.0);
			m_base->measurementFrequencyBox->setFloatValue(instrumentLimits.minFrequency / 1000000.0);

			m_base->sweepStartFrequencyBox->setLineStep(1);
			m_base->sweepStartFrequencyBox->setFloatMax(instrumentLimits.maxFrequency / 1000000.0);
			m_base->sweepStartFrequencyBox->setFloatMin(instrumentLimits.minFrequency / 1000000.0);
			m_base->sweepStartFrequencyBox->setFloatValue(instrumentLimits.minFrequency / 1000000.0);

			m_base->sweepEndFrequencyBox->setLineStep(1);
			m_base->sweepEndFrequencyBox->setFloatMax(instrumentLimits.maxFrequency / 1000000.0);
			m_base->sweepEndFrequencyBox->setFloatMin(instrumentLimits.minFrequency / 1000000.0);
			m_base->sweepEndFrequencyBox->setFloatValue(instrumentLimits.minFrequency / 1000000.0);

			m_base->sweepStepFrequencyBox->setLineStep(1);
			m_base->sweepStepFrequencyBox->setFloatMax((instrumentLimits.maxFrequency - instrumentLimits.minFrequency) / 1000000.0);
			m_base->sweepStepFrequencyBox->setFloatMin(0.000001);		// 1Hz
			if (instrumentLimits.maxFrequency >= 1.0) {
				m_base->sweepStepFrequencyBox->setFloatValue(1.0);	// 1MHz
			}
			else {
				// Fallback...
				m_base->sweepStepFrequencyBox->setFloatValue(instrumentLimits.minFrequency);
			}

			m_instrumentSettingsValid = false;

			// Update GUI
			unsigned int parameter_number = 0;
			TQValueList<AllowedMeasurementInfoList>::iterator it;
			AllowedMeasurementInfoList::iterator it2;
			for (it = m_parameterSourceValues.begin(); it != m_parameterSourceValues.end(); ++it) {
				AllowedMeasurementInfoList allowedValuePairs = *it;
				if (parameter_number == 0) {
					m_base->parameterASourceCombo->clear();
					for (it2 = allowedValuePairs.begin(); it2 != allowedValuePairs.end(); ++it2) {
						m_base->parameterASourceCombo->insertItem((*it2).second, -1);
					}
				}
				else if (parameter_number == 1) {
					m_base->parameterBSourceCombo->clear();
					for (it2 = allowedValuePairs.begin(); it2 != allowedValuePairs.end(); ++it2) {
						m_base->parameterBSourceCombo->insertItem((*it2).second, -1);
					}
				}
				parameter_number++;
			}
			m_connectionActiveAndValid = true;
		}
		else if (((*it).first == MeasurementsReceived) || ((*it).first == SweepMeasurementsReceived)) {
			TQ_UINT32 sample_number;
			unsigned int parameter_number;
			CompAnalyzerMeasurementList measurements;
			TQByteArray measurementStreamData = (*it).second.toByteArray();
			TQDataStream measurementStream(measurementStreamData, IO_ReadOnly);
			measurementStream >> measurements;
			measurementStream >> sample_number;
			// If frequency sweep is in progress, then add sample points to graph
			if ((*it).first == SweepMeasurementsReceived) {
				unsigned int traceno = 0;
				CompAnalyzerMeasurementList::iterator it;
				for (it = measurements.begin(); it != measurements.end(); ++it) {
					TQDoubleArray sampleArray = m_traceWidget->samples(traceno);
					TQDoubleArray positionArray = m_traceWidget->positions(traceno);
					if (sampleArray.count() < (sample_number + 1)) {
						sampleArray.resize(sample_number + 1);
					}
					if (positionArray.count() < (sample_number + 1)) {
						positionArray.resize(sample_number + 1);
					}
					sampleArray[sample_number] = (*it).value;
					positionArray[sample_number] = (*it).frequency;
					if (sample_number == 0) {
						m_sensorList[traceno].max = (*it).value;
						m_sensorList[traceno].min = (*it).value;
					}
					else {
						if ((*it).value > m_sensorList[traceno].max) {
							m_sensorList[traceno].max = (*it).value;
						}
						if ((*it).value < m_sensorList[traceno].min) {
							m_sensorList[traceno].min = (*it).value;
						}
					}
					m_traceWidget->setSamples(traceno, sampleArray);
					m_traceWidget->setPositions(traceno, positionArray);
					m_base->traceZoomWidget->setSamples(traceno, sampleArray);
					m_base->traceZoomWidget->setPositions(traceno, positionArray);
					traceno++;	
				}
				updateGraticule();
				m_traceWidget->repaint(false);
				m_base->traceZoomWidget->repaint(false);
				processAutosave();
			}
			// Update displays
			parameter_number = 0;
			CompAnalyzerMeasurementList::iterator it;
			for (it = measurements.begin(); it != measurements.end(); ++it) {
				if (parameter_number == 0) {
					m_base->parameterADisplay->setValue((*it).value, 5, true);
				}
				else if (parameter_number == 1) {
					m_base->parameterBDisplay->setValue((*it).value, 5, true);
				}
				m_base->frequencyDisplay->setValue((*it).frequency / 1000000.0, 2, true);

				// Update instrument control selectors
				if (m_parameterSourceValues.count() < (parameter_number + 1)) {
					continue;
				}
				AllowedMeasurementInfoList::iterator it2;
				for (it2 = m_parameterSourceValues[parameter_number].begin(); it2 != m_parameterSourceValues[parameter_number].end(); ++it2) {
					if ((*it2).first == (*it).parameter) {
						if (parameter_number == 0) {
							m_base->parameterASourceCombo->setCurrentText((*it2).second);
						}
						if (parameter_number == 1) {
							m_base->parameterBSourceCombo->setCurrentText((*it2).second);
						}
					}
				}

				parameter_number++;
			}
			m_instrumentSettingsValid = true;
			m_connectionActiveAndValid = true;
		}
		had_events = true;
	}
	if (had_events) {
		if (m_connectionActiveAndValid) {
			networkTick();
		}
		eventQueue->clear();
	}

	m_worker->unlockOutboundQueue();

	processLockouts();
}

void CompAnalyzerPart::networkTick() {
	setTickerMessage(i18n("Connected"));
	m_connectionActiveAndValid = true;
	processLockouts();
}

void CompAnalyzerPart::networkTimeout() {
	m_updateTimeoutTimer->stop();
	m_socket->clearIncomingData();
	setStatusMessage(i18n("Server ping timeout.  Please verify the status of your network connection."));
	m_connectionActiveAndValid = false;
	processLockouts();

	// Try to recover
	m_worker->resetInboundQueue();
	requestNetworkOperation(CompAnalyzerEvent(Initialize, TQVariant()), true);
}

void CompAnalyzerPart::updateZoomWidgetLimits(const TQRectF& zoomRect) {
	for (int traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
		TQRectF fullZoomRect = m_traceWidget->displayLimits(traceno);
		double widthSpan = fullZoomRect.width()-fullZoomRect.x();
		double heightSpan = fullZoomRect.height()-fullZoomRect.y();

		TQRectF zoomLimitsRect((fullZoomRect.x()+(widthSpan*(zoomRect.x()/100.0))), (fullZoomRect.y()+(heightSpan*(zoomRect.y()/100.0))), (fullZoomRect.x()+(widthSpan*((zoomRect.x()/100.0)+(zoomRect.width()/100.0)))), (fullZoomRect.y()+(heightSpan*((zoomRect.y()/100.0)+(zoomRect.height()/100.0)))));

		m_base->traceZoomWidget->setDisplayLimits(traceno, zoomLimitsRect);
	}
}

void CompAnalyzerPart::updateGraticule() {
	m_traceWidget->setNumberOfHorizontalDivisions(m_hdivs);
	m_traceWidget->setNumberOfVerticalDivisions(m_vdivs);
	m_base->traceZoomWidget->setNumberOfHorizontalDivisions(m_hdivs);
	m_base->traceZoomWidget->setNumberOfVerticalDivisions(m_vdivs);

	if (m_maxNumberOfTraces > 0) m_traceWidget->setTraceColor(0, TQColor(255, 255, 255));
	if (m_maxNumberOfTraces > 1) m_traceWidget->setTraceColor(1, TQColor(128, 255, 128));
	if (m_maxNumberOfTraces > 2) m_traceWidget->setTraceColor(2, TQColor(255, 255, 128));
	if (m_maxNumberOfTraces > 3) m_traceWidget->setTraceColor(3, TQColor(128, 128, 255));

	if (m_maxNumberOfTraces > 0) m_base->traceZoomWidget->setTraceColor(0, TQColor(255, 255, 255));
	if (m_maxNumberOfTraces > 1) m_base->traceZoomWidget->setTraceColor(1, TQColor(128, 255, 128));
	if (m_maxNumberOfTraces > 2) m_base->traceZoomWidget->setTraceColor(2, TQColor(255, 255, 128));
	if (m_maxNumberOfTraces > 3) m_base->traceZoomWidget->setTraceColor(3, TQColor(128, 128, 255));

	for (int traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
		if (m_sensorList.count() < (traceno + 1)) {
			continue;
		}
		if (traceno == 0) {
			m_sensorList[traceno].name = m_base->parameterASourceCombo->currentText();
		}
		else if (traceno == 1) {
			m_sensorList[traceno].name = m_base->parameterBSourceCombo->currentText();
		}
		m_sensorList[traceno].units = parameterNameToMeasurementUnits(m_sensorList[traceno].name, traceno);

		m_traceWidget->setTraceEnabled(traceno, m_channelActive[traceno]);
		m_traceWidget->setTraceName(traceno, m_sensorList[traceno].name);
		m_traceWidget->setTraceHorizontalUnits(traceno, "Hz");
		m_traceWidget->setTraceVerticalUnits(traceno, m_sensorList[traceno].units);

		m_base->traceZoomWidget->setTraceEnabled(traceno, m_channelActive[traceno], TraceWidget::SummaryText);
		m_base->traceZoomWidget->setTraceName(traceno, m_sensorList[traceno].name);
		m_base->traceZoomWidget->setTraceHorizontalUnits(traceno, "Hz");
		m_base->traceZoomWidget->setTraceVerticalUnits(traceno, m_sensorList[traceno].units);

		double startfreq = 0.0;
		double endfreq = 0.0;
		if (m_samplesInTrace[traceno] > 0) {
			startfreq = m_worker->sweepStartFrequency();
			endfreq = m_worker->sweepEndFrequency();
		}
		m_traceWidget->setDisplayLimits(traceno, TQRectF(startfreq, m_sensorList[traceno].max, endfreq, m_sensorList[traceno].min));
	}
	updateZoomWidgetLimits(m_traceWidget->zoomBox());
}

void CompAnalyzerPart::frequencyInputChanged(double value) {
	double frequency = value * 1000000.0;

	requestNetworkOperation(CompAnalyzerEvent(SetFrequency, TQVariant(frequency)), true);

	processLockouts();
}

void CompAnalyzerPart::parameterASourceChanged(int index) {
	TQValueList<TQ_UINT32> sourceIndexList;
	TQString newSource = m_base->parameterASourceCombo->text(index);
	TQString source = m_base->parameterBSourceCombo->currentText();

	AllowedMeasurementInfoList::iterator it2;
	for (it2 = m_parameterSourceValues[0].begin(); it2 != m_parameterSourceValues[0].end(); ++it2) {
		if ((*it2).second == newSource) {
			sourceIndexList.append((*it2).first);
			break;
		}
	}

	for (it2 = m_parameterSourceValues[1].begin(); it2 != m_parameterSourceValues[1].end(); ++it2) {
		if ((*it2).second == source) {
			sourceIndexList.append((*it2).first);
			break;
		}
	}

	if (sourceIndexList.count() >= 2) {
		m_worker->setNewParameterSourceList(sourceIndexList);
		requestNetworkOperation(CompAnalyzerEvent(ChangeMeasurementSource, TQVariant()), true);
	}

	processLockouts();
}

void CompAnalyzerPart::parameterBSourceChanged(int index) {
	TQValueList<TQ_UINT32> sourceIndexList;
	TQString newSource = m_base->parameterBSourceCombo->text(index);
	TQString source = m_base->parameterASourceCombo->currentText();

	AllowedMeasurementInfoList::iterator it2;
	for (it2 = m_parameterSourceValues[0].begin(); it2 != m_parameterSourceValues[0].end(); ++it2) {
		if ((*it2).second == source) {
			sourceIndexList.append((*it2).first);
			break;
		}
	}

	for (it2 = m_parameterSourceValues[1].begin(); it2 != m_parameterSourceValues[1].end(); ++it2) {
		if ((*it2).second == newSource) {
			sourceIndexList.append((*it2).first);
			break;
		}
	}

	if (sourceIndexList.count() >= 2) {
		m_worker->setNewParameterSourceList(sourceIndexList);
		requestNetworkOperation(CompAnalyzerEvent(ChangeMeasurementSource, TQVariant()), true);
	}

	processLockouts();
}

void CompAnalyzerPart::startSweepClicked() {
	int traceno;

	double start = m_base->sweepStartFrequencyBox->floatValue() * 1000000.0;
	double end = m_base->sweepEndFrequencyBox->floatValue() * 1000000.0;
	double step = m_base->sweepStepFrequencyBox->floatValue() * 1000000.0;

	if (end <= start) {
		return;
	}

	m_worker->setSweepStartFrequency(start);
	m_worker->setSweepEndFrequency(end);
	m_worker->setSweepStepFrequency(step);

	m_sensorList.clear();
	for ( traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
		m_sensorList.append(SensorType());
	}
	for (traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
		m_samplesInTrace[traceno] = ((end - start) / step) + 1;
		m_channelActive[traceno] = true;
		m_sensorList[traceno].name = "";
		m_sensorList[traceno].units = "";
		m_sensorList[traceno].max = 0;
		m_sensorList[traceno].min = 0;
		m_traceUnits[traceno] = m_sensorList[traceno].units;
	}
	m_traceWidget->setNumberOfSamples(traceno, m_samplesInTrace[traceno]);
	m_base->traceZoomWidget->setNumberOfSamples(traceno, m_samplesInTrace[traceno]);

	// Clear graph
	for (int traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
		TQDoubleArray sampleArray = m_traceWidget->samples(traceno);
		TQDoubleArray positionArray = m_traceWidget->positions(traceno);
		if (sampleArray.count() != (unsigned int)m_samplesInTrace[traceno]) {
			sampleArray.resize(m_samplesInTrace[traceno]);
		}
		if (positionArray.count() != (unsigned int)m_samplesInTrace[traceno]) {
			positionArray.resize(m_samplesInTrace[traceno]);
		}
		sampleArray.fill(NAN);
		positionArray.fill(NAN);
		m_traceWidget->setSamples(traceno, sampleArray);
		m_traceWidget->setPositions(traceno, positionArray);
		m_base->traceZoomWidget->setSamples(traceno, sampleArray);
		m_base->traceZoomWidget->setPositions(traceno, positionArray);
	}

	updateGraticule();

	requestNetworkOperation(CompAnalyzerEvent(StartSweep, TQVariant()), true);

	processLockouts();
}

void CompAnalyzerPart::stopSweepClicked() {
	requestNetworkOperation(CompAnalyzerEvent(AbortSweep, TQVariant()), true);

	processLockouts();
}

void CompAnalyzerPart::processAutosave() {
	if (m_base->autoSave->isOn()) {
		if (m_base->autoSaveFile->url() != "") {
			saveWaveforms(m_base->autoSaveFile->url());
		}
	}
}

#define WAVEFORM_MAGIC_NUMBER 3
#define WAVEFORM_FILE_VERSION 1

void CompAnalyzerPart::saveWaveforms() {
	saveWaveforms(TQString::null);
}

void CompAnalyzerPart::saveWaveforms(TQString fileName) {
	TQString saveFileName;
	if (fileName != "") {
		saveFileName = fileName;
	}
	else {
		saveFileName = KFileDialog::getSaveFileName(TQString::null, "*.wfm|Waveform Files (*.wfm)", 0, i18n("Save waveforms..."));
	}
	if (saveFileName != "") {
		TQFile file(saveFileName);
		file.open(IO_WriteOnly);
		TQDataStream ds(&file);
		TQ_INT32 magicNumber = WAVEFORM_MAGIC_NUMBER;
		TQ_INT32 version = WAVEFORM_FILE_VERSION;
		ds << magicNumber;
		ds << version;
		ds << m_sensorList;
		ds << m_hdivs;
		ds << m_vdivs;
		ds << m_maxNumberOfTraces;
		ds << m_worker->sweepStartFrequency();
		ds << m_worker->sweepEndFrequency();
		ds << m_worker->sweepStepFrequency();
		for (int traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
			TQ_UINT8 boolValue;
			boolValue = m_channelActive[traceno];
			ds << boolValue;
			ds << m_samplesInTrace[traceno];
			ds << m_traceUnits[traceno];
			ds << m_traceWidget->samples(traceno);
			ds << m_traceWidget->positions(traceno);
		}
		for (int cursorno=0; cursorno<4; cursorno++) {
			ds << m_traceWidget->cursorPosition(cursorno);
		}
		ds << m_base->userNotes->text();
	}

	processLockouts();
}

void CompAnalyzerPart::recallWaveforms() {
	TQString openFileName = KFileDialog::getOpenFileName(TQString::null, "*.wfm|Waveform Files (*.wfm)", 0, i18n("Open waveforms..."));
	if (openFileName != "") {
		TQFile file(openFileName);
		file.open(IO_ReadOnly);
		TQDataStream ds(&file);
		TQ_INT32 magicNumber;
		TQ_INT32 version;
		ds >> magicNumber;
		if (magicNumber == WAVEFORM_MAGIC_NUMBER) {
			ds >> version;
			if (version == WAVEFORM_FILE_VERSION) {
				double sweepStartFrequency;
				double sweepEndFrequency;
				double sweepStepFrequency;
				ds >> m_sensorList;
				ds >> m_hdivs;
				ds >> m_vdivs;
				ds >> m_maxNumberOfTraces;
				ds >> sweepStartFrequency;
				ds >> sweepEndFrequency;
				ds >> sweepStepFrequency;
				for (int traceno=0; traceno<m_maxNumberOfTraces; traceno++) {
					TQ_UINT8 boolValue;
					ds >> boolValue;
					m_channelActive[traceno] = (boolValue!=0)?true:false;
					ds >> m_samplesInTrace[traceno];
					ds >> m_traceUnits[traceno];
					TQDoubleArray values;
					TQDoubleArray positions;
					ds >> values;
					ds >> positions;
					m_traceWidget->setNumberOfSamples(traceno, m_samplesInTrace[traceno], true);
					m_traceWidget->setSamples(traceno, values);
					m_traceWidget->setPositions(traceno, positions);
					m_base->traceZoomWidget->setSamples(traceno, values);
					m_base->traceZoomWidget->setPositions(traceno, positions);
					m_traceWidget->setDisplayLimits(traceno, TQRectF(positions[0], m_sensorList[traceno].max, positions[positions.count() - 1], m_sensorList[traceno].min));
					if (traceno == 0) {
						m_worker->setSweepStartFrequency(positions[0]);
						m_worker->setSweepEndFrequency(positions[positions.count() - 1]);
					}
				}
				for (int cursorno=0; cursorno<4; cursorno++) {
					double cursorPos;
					ds >> cursorPos;
					m_traceWidget->setCursorPosition(cursorno, cursorPos);
				}
				updateGraticule();
				m_traceWidget->repaint(false);
				m_base->traceZoomWidget->repaint(false);
				TQString notes;
				ds >> notes;
				m_base->userNotes->setText(notes);
				m_base->sweepStartFrequencyBox->setFloatValue(sweepStartFrequency / 1000000.0);
				m_base->sweepEndFrequencyBox->setFloatValue(sweepEndFrequency / 1000000.0);
				m_base->sweepStepFrequencyBox->setFloatValue(sweepStepFrequency / 1000000.0);
			}
			else {
				KMessageBox::error(0, i18n("<qt>The selected waveform file version does not match this client</qt>"), i18n("Invalid File"));
			}
		}
		else {
			KMessageBox::error(0, i18n("<qt>Invalid waveform file selected</qt>"), i18n("Invalid File"));
		}
	}

	processLockouts();
}

TQString CompAnalyzerPart::parameterMeasurementUnits(TQ_UINT32 parameter) {
	TQString ret;

	switch (parameter) {
		case 0:
			// Resistance
			ret = i18n("Ω");
			break;
		case 1:
			// Reactance
			ret = i18n("Ω");
			break;
		case 2:
			// Conductance
			ret = i18n("S");
			break;
		case 3:
			// Susceptance
			ret = i18n("S");
			break;
		case 4:
			// Inductance
			ret = i18n("H");
			break;
		case 5:
			// Capacitance
			ret = i18n("F");
			break;
		case 6:
			// Dissipation Factor
			ret = TQString::null;
			break;
		case 7:
			// Quality Factor
			ret = TQString::null;
			break;
		case 8:
			// Impedance
			ret = i18n("Ω");
			break;
		case 9:
			// Admittance
			ret = i18n("S");
			break;
		case 10:
			// Reflection (absolute)
			ret = TQString::null;
			break;
		case 11:
			// Reflection (X)
			ret = TQString::null;
			break;
		case 12:
			// Reflection (Y)
			ret = TQString::null;
			break;
		case 13:
			// Phase angle (degrees)
			ret = i18n("°");
			break;
		case 14:
			// Phase angle (radians)
			ret = i18n("rad");
			break;
	}

	return ret;
}

TQString CompAnalyzerPart::parameterNameToMeasurementUnits(TQString name, unsigned int parameter_index) {
	TQString ret;

	AllowedMeasurementInfoList::iterator it2;
	for (it2 = m_parameterSourceValues[parameter_index].begin(); it2 != m_parameterSourceValues[parameter_index].end(); ++it2) {
		if ((*it2).second == name) {
			ret = parameterMeasurementUnits((*it2).first);
		}
	}

	return ret;
}

TDEAboutData* CompAnalyzerPart::createAboutData() {
	return new TDEAboutData( APP_NAME, I18N_NOOP( APP_PRETTYNAME ), APP_VERSION );
}

} //namespace RemoteLab

#include "part.moc"