Add preliminary data export support to oscilloscope part

clients/tde/src/part/scope/layout.ui

@@ -150,6 +150,14 @@
 											<cstring>mathTraceControlLayoutWidget</cstring>
 										</property>
 									</widget>
+									<widget class="TQPushButton" row="2" column="0" colspan="1">
+										<property name="name">
+											<cstring>dumpSamples</cstring>
+										</property>
+										<property name="text">
+											<string>Export Selected Data</string>
+										</property>
+									</widget>
 								</grid>
 							</widget>
 							<widget class="TQGroupBox" row="2" column="0">

clients/tde/src/part/scope/part.cpp

@@ -638,6 +638,7 @@ ScopePart::ScopePart( TQWidget *parentWidget, const char *widgetName, TQObject *
 	connect(m_traceWidget, SIGNAL(zoomBoxChanged(const TQRectF&)), this, SLOT(updateZoomWidgetLimits(const TQRectF&)));
 	connect(m_traceWidget, SIGNAL(offsetChanged(uint, double)), m_base->traceZoomWidget, SLOT(setTraceOffset(uint, double)));
 
+	connect(m_base->dumpSamples, SIGNAL(clicked()), this, SLOT(dumpSamples()));
 	connect(m_base->acqStart, SIGNAL(clicked()), this, SLOT(startDAQ()));
 	connect(m_base->acqStop, SIGNAL(clicked()), this, SLOT(stopDAQ()));
 	connect(m_base->runControlStartButton, SIGNAL(clicked()), this, SLOT(startScope()));
@@ -2133,6 +2134,30 @@ void ScopePart::startDAQ() {
 	EXEC_NEXT_STATE_IMMEDIATELY
 }
 
+void ScopePart::dumpSamples() {
+	// Calculate left and right extent of zoom area
+	TQRectF currentZoomBox = m_traceWidget->zoomBox();
+
+	TQString csvData = "";
+	for (int traceno=1; traceno<=m_maxNumberOfTraces; traceno++) {
+		if (m_channelActive[traceno]) {
+			TQString saveFileName = TQString("/tmp/trace%1.csv").arg(traceno);
+			TQFile file(saveFileName);
+			file.open(IO_WriteOnly);
+			csvData = "";
+			int start_sample = ((m_samplesInTrace[traceno] * currentZoomBox.x()) / 100.0);
+			int end_sample = ((m_samplesInTrace[traceno] * currentZoomBox.width()) / 100.0) + start_sample;
+			TQDoubleArray positions = m_traceWidget->positions(traceno-1);
+			TQDoubleArray values = m_traceWidget->samples(traceno-1);
+			for (int sample=start_sample; sample<end_sample; sample++) {
+				csvData += TQString("%1,%2\n").arg(positions[sample]).arg(values[sample]);
+			}
+			csvData += "\n";
+			file.writeBlock(csvData.ascii(), strlen(csvData.ascii()));
+		}
+	}
+}
+
 void ScopePart::stopDAQ() {
 	if (m_commHandlerMode < 2) {
 		m_stopTraceUpdate = true;

clients/tde/src/part/scope/part.h

@@ -223,6 +223,7 @@ namespace RemoteLab
 			void connectionStatusChangedCallback();
 			void setTickerMessage(TQString message);
 			void mainEventLoop();
+			void dumpSamples();
 			void startDAQ();
 			void stopDAQ();
 			void updateTraceControlWidgets();