1 files changed, 124 insertions, 0 deletions
diff --git a/clients/tde/src/widgets/tracewidget.cpp b/clients/tde/src/widgets/tracewidget.cpp
new file mode 100644
index 0000000..9b771bc
--- /dev/null
+++ b/clients/tde/src/widgets/tracewidget.cpp
@@ -0,0 +1,124 @@
+//Author:    Timothy Pearson <kb9vqf@pearsoncomputing.net>, (C) 2012
+//Copyright: See COPYING file that comes with this distribution
+
+#include "tracewidget.h"
+
+#include <stdlib.h>
+
+#include <tqpixmap.h>
+#include <tqpainter.h>
+
+TraceWidget::TraceWidget(TQWidget* parent, const char* name) : TQWidget(parent, name),
+	m_samples(0),
+	m_horizDivs(0),
+	m_vertDivs(0),
+	m_leftEdge(0),
+	m_rightEdge(0),
+	m_topEdge(0),
+	m_bottomEdge(0),
+	m_sampleArray(0),
+	m_graticulePixmap(0) {
+	setBackgroundMode(NoBackground);
+
+	setPaletteBackgroundColor(TQt::black);
+	setPaletteForegroundColor(TQColor(0,128,0));
+}
+
+TraceWidget::~TraceWidget() {
+	//
+}
+
+void TraceWidget::setNumberOfSamples(unsigned int samples) {
+	m_samples = samples;
+	if (m_sampleArray) {
+		delete [] m_sampleArray;
+	}
+	m_sampleArray = new double[m_samples];
+
+	updateGraticule();
+}
+
+void TraceWidget::setNumberOfHorizontalDivisions(unsigned int divisions) {
+	m_horizDivs = divisions;
+	updateGraticule();
+}
+
+void TraceWidget::setNumberOfVerticalDivisions(unsigned int divisions) {
+	m_vertDivs = divisions;
+	updateGraticule();
+}
+
+void TraceWidget::setDisplayLimits(double x, double y, double w, double h) {
+	m_leftEdge = x;
+	m_rightEdge = w;
+	m_topEdge = y;
+	m_bottomEdge = h;
+}
+
+double* TraceWidget::samples() {
+	return m_sampleArray;
+}
+
+void TraceWidget::updateGraticule() {
+	unsigned int d,s,x,y;
+
+	if (m_graticulePixmap) {
+		delete m_graticulePixmap;
+	}
+	m_graticulePixmap = new TQPixmap(width(), height());
+
+	// Draw the graticule into the pixmap
+	TQPainter p(m_graticulePixmap);
+	p.setPen(TQPen(foregroundColor(), 1, TQt::SolidLine));
+	p.fillRect(0, 0, m_graticulePixmap->width(), m_graticulePixmap->height(), backgroundColor());
+	p.setPen(TQPen(foregroundColor(), 1, TQt::DotLine));
+	if (m_vertDivs > 0) {
+		s = m_graticulePixmap->width() / m_vertDivs;
+		x = 0;
+		for (d=0; d<m_vertDivs; d++) {
+			p.drawLine(x, 0, x, m_graticulePixmap->height());
+			x += s;
+		}
+	}
+	if (m_horizDivs > 0) {
+		s = m_graticulePixmap->height() / m_horizDivs;
+		y = 0;
+		for (d=0; d<m_horizDivs; d++) {
+			p.drawLine(0, y, m_graticulePixmap->width(), y);
+			y += s;
+		}
+	}
+	p.setPen(TQPen(foregroundColor(), 1, TQt::SolidLine));
+	p.drawRect(0, 0, m_graticulePixmap->width(), m_graticulePixmap->height());
+
+	// Repaint the widget
+	repaint();
+}
+
+void TraceWidget::paintEvent(TQPaintEvent*) {
+	TQPainter p(this);
+	p.setPen(foregroundColor().light(150));
+
+	if ((m_graticulePixmap) && (m_bottomEdge != m_topEdge)) {
+		// Draw the graticule pixmap to erase the widget
+		p.drawPixmap(0, 0, *m_graticulePixmap);
+
+		// Draw the points
+		unsigned int n;
+		int x,y,x2,y2;
+		for (n=0; n<m_samples-1; n++) {
+			x = abs(((n*1.0)/(m_samples-1))*(m_graticulePixmap->width()));
+			y = abs(((m_sampleArray[n]-m_topEdge)/(m_bottomEdge-m_topEdge))*(m_graticulePixmap->height()));
+			x2 = abs(((n+1*1.0)/(m_samples-1))*(m_graticulePixmap->width()));
+			y2 = abs(((m_sampleArray[n+1]-m_topEdge)/(m_bottomEdge-m_topEdge))*(m_graticulePixmap->height()));
+			p.drawLine(x, y, x2, y2);
+		}
+	}
+	else {
+		p.fillRect(x(), y(), width(), height(), backgroundColor());
+	}
+}
+
+void TraceWidget::resizeEvent(TQResizeEvent *) {
+	updateGraticule();
+}
+\ No newline at end of file