Add seven segment display array widget

2 files changed, 196 insertions, 0 deletions

diff --git a/clients/tde/src/widgets/sevensegment.cpp b/clients/tde/src/widgets/sevensegment.cpp
index f97c428..d7e7a07 100644
--- a/clients/tde/src/widgets/sevensegment.cpp
+++ b/clients/tde/src/widgets/sevensegment.cpp
@@ -75,6 +75,26 @@ void Display7Segment::setLitSegments(unsigned char segs) {
 	prevSegments = segs;
 }
 
+unsigned char Display7Segment::segmentsForNumericDigit(unsigned char val, bool dp) {
+	unsigned char ret = 0;
+	if      (val == 0) { ret = 0x7e; }
+	else if (val == 1) { ret = 0x30; }
+	else if (val == 2) { ret = 0x6d; }
+	else if (val == 3) { ret = 0x79; }
+	else if (val == 4) { ret = 0x33; }
+	else if (val == 5) { ret = 0x5b; }
+	else if (val == 6) { ret = 0x5f; }
+	else if (val == 7) { ret = 0x70; }
+	else if (val == 8) { ret = 0x7f; }
+	else if (val == 9) { ret = 0x73; }
+
+	if (dp) {
+		ret |= 0x80;
+	}
+
+	return ret;
+}
+
 void Display7Segment::drawContents( TQPainter *p )
 {
 	// Draw all segments
@@ -453,4 +473,149 @@ void Display7Segment::drawSegment(const TQPoint &pos, char segmentNo, TQPainter
 #undef DARK
 }
 
+Display7SegmentArray::Display7SegmentArray( TQWidget *parent, const char *name )
+	: TQFrame( parent, name ),
+	m_numberOfDigits(0),
+	m_segmentStyle(Flat)
+{
+	init();
+}
+
+Display7SegmentArray::~Display7SegmentArray() {
+	unsigned int i;
+
+	// Delete displays
+	for (i=0; i < m_numberOfDigits; i++) {
+		delete m_displayArray[i];
+	}
+	delete m_displayArray;
+	m_displayArray = NULL;
+}
+
+void Display7SegmentArray::init() {
+	unsigned int i;
+
+	// Set up grid layout
+	m_layout = new TQGridLayout(this, 1, m_numberOfDigits);
+	m_layout->setAutoAdd(true);
+
+	// Allocate display array
+	m_displayArray = (Display7Segment**)malloc(sizeof(Display7Segment*) * m_numberOfDigits);
+
+	// Create displays
+	for (i=0; i < m_numberOfDigits; i++) {
+		m_displayArray[i] = new Display7Segment(this);
+	}
+
+	setSizePolicy(TQSizePolicy(TQSizePolicy::Minimum, TQSizePolicy::Minimum));
+
+	// Set up displays
+	for (i=0; i < m_numberOfDigits; i++) {
+		m_displayArray[i]->setBackgroundColor(TQt::black);
+		m_displayArray[i]->setPaletteForegroundColor(TQColor(0, 255, 64));
+	}
+
+	// The LED display can work one of two ways
+#if 0
+	// Separated segments
+	for (i=0; i < m_numberOfDigits; i++) {
+		m_displayArray[i]->setFrameStyle(TQFrame::Box | TQFrame::Raised);
+	}
+	setFrameStyle(TQFrame::NoFrame);
+#else
+	// Combined segments
+	for (i=0; i < m_numberOfDigits; i++) {
+		m_displayArray[i]->setFrameStyle(TQFrame::NoFrame);
+	}
+	setBackgroundColor(TQt::black);
+	setFrameStyle(TQFrame::Box | TQFrame::Raised);
+#endif
+}
+
+void Display7SegmentArray::setNumberOfDigits(unsigned int count) {
+	unsigned int i;
+
+	if (m_numberOfDigits != count) {
+		// Delete displays
+		if (m_displayArray) {
+			for (i=0; i < m_numberOfDigits; i++) {
+				delete m_displayArray[i];
+			}
+			delete m_displayArray;
+			m_displayArray = NULL;
+		}
+
+		// Destroy layout
+		if (m_layout) {
+			delete m_layout;
+		}
+
+		// Set display count
+		m_numberOfDigits = count;
+
+		// Reinitialize
+		init();
+	}
+}
+
+void Display7SegmentArray::setSegmentStyle(SegmentStyle s) {
+	unsigned int i;
+
+	m_segmentStyle = s;
+	for (i=0; i < m_numberOfDigits; i++) {
+		m_displayArray[i]->setSegmentStyle((Display7Segment::SegmentStyle)m_segmentStyle);
+	}
+}
+
+Display7SegmentArray::SegmentStyle Display7SegmentArray::segmentStyle() const {
+	return m_segmentStyle;
+}
+
+void Display7SegmentArray::setValue(double value, int maxDecimalLength, bool forceMinDecimalLength) {
+	bool dp;
+	unsigned int i;
+	TQString displayString = TQString("%1").arg(value);
+	if (maxDecimalLength >= 0) {
+		int decPos = displayString.find(".");
+		if (decPos >= 0) {
+			int decLen = (displayString.length() - 1) - decPos;
+			if (decLen > maxDecimalLength) {
+				displayString.truncate(displayString.length() - (decLen - maxDecimalLength));
+			}
+		}
+		if (forceMinDecimalLength) {
+			if (decPos < 0) {
+				displayString.append(".");
+				decPos = displayString.length() - 1;
+			}
+			for (int i = displayString.length(); i < decPos + maxDecimalLength + 1; i++) {
+				displayString.append("0");
+			}
+		}
+	}
+	int last_char = displayString.length();
+	int current_char = (last_char - (int)m_numberOfDigits);
+	if (displayString.contains(".")) {
+		current_char--;
+	}
+	for (i=0; i < m_numberOfDigits; i++) {
+		if (current_char < 0) {
+			m_displayArray[i]->setLitSegments(0x0);
+		}
+		else {
+			dp = false;
+			if (current_char < (displayString.length() - 1)) {
+				if (displayString[current_char + 1] == '.') {
+					dp = true;
+				}
+			}
+			if (displayString[current_char] == '.') {
+				current_char++;
+			}
+			m_displayArray[i]->setLitSegments(Display7Segment::segmentsForNumericDigit(TQString(displayString[current_char]).toInt(NULL, 10), dp));
+		}
+		current_char++;
+	}
+}
+
 #include "sevensegment.moc"
\ No newline at end of file
diff --git a/clients/tde/src/widgets/sevensegment.h b/clients/tde/src/widgets/sevensegment.h
index 081071c..a14e3c5 100644
--- a/clients/tde/src/widgets/sevensegment.h
+++ b/clients/tde/src/widgets/sevensegment.h
@@ -24,6 +24,7 @@
 #define REMOTELAB_DISPLAY7SEGEMENT_H
 
 #include <tqframe.h>
+#include <tqlayout.h>
 
 class Display7SegmentPrivate;
 
@@ -43,6 +44,7 @@ class TQ_EXPORT Display7Segment : public TQFrame
 		virtual void setSegmentStyle(SegmentStyle);
 
 		void setLitSegments(unsigned char);
+		static unsigned char segmentsForNumericDigit(unsigned char val, bool dp);
 
 		TQSize sizeHint() const;
 
@@ -65,4 +67,33 @@ class TQ_EXPORT Display7Segment : public TQFrame
 		Display7SegmentPrivate *d;
 };
 
+class TQ_EXPORT Display7SegmentArray : public TQFrame
+{
+	Q_OBJECT
+	TQ_ENUMS(SegmentStyle)
+	TQ_PROPERTY(SegmentStyle segmentStyle READ segmentStyle WRITE setSegmentStyle)
+
+	public:
+		Display7SegmentArray(TQWidget* parent=0, const char* name=0);
+		~Display7SegmentArray();
+
+		enum SegmentStyle { Outline, Filled, Flat };
+
+		SegmentStyle segmentStyle() const;
+		virtual void setSegmentStyle(SegmentStyle);
+
+		void setNumberOfDigits(unsigned int count);
+
+		void setValue(double value, int maxDecimalLength=-1, bool forceMinDecimalLength=false);
+
+	protected:
+		unsigned int m_numberOfDigits;
+		Display7Segment** m_displayArray;
+		TQGridLayout* m_layout;
+		SegmentStyle m_segmentStyle;
+
+	private:
+		void init();
+};
+
 #endif
\ No newline at end of file