1 files changed, 291 insertions, 0 deletions
diff --git a/src/electronics/components/matrixdisplay.cpp b/src/electronics/components/matrixdisplay.cpp
new file mode 100644
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+++ b/src/electronics/components/matrixdisplay.cpp
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+/***************************************************************************
+ *   Copyright (C) 2005 by David Saxton                                    *
+ *   [email protected]                                                    *
+ *                                                                         *
+ *   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.                                   *
+ ***************************************************************************/
+
+#include "colorcombo.h"
+#include "diode.h"
+#include "ecled.h"
+#include "ecnode.h"
+#include "libraryitem.h"
+#include "matrixdisplay.h"
+#include "simulator.h"
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <qpainter.h>
+#include <qstring.h>
+
+Item* MatrixDisplay::construct( ItemDocument *itemDocument, bool newItem, const char *id )
+{
+	return new MatrixDisplay( (ICNDocument*)itemDocument, newItem, id );
+}
+
+
+LibraryItem* MatrixDisplay::libraryItem()
+{
+	return new LibraryItem(
+		"ec/matrix_display",
+		i18n("Matrix Display"),
+		i18n("Outputs"),
+		"matrixdisplay.png",
+		LibraryItem::lit_component,
+		MatrixDisplay::construct );
+}
+
+
+MatrixDisplay::MatrixDisplay( ICNDocument *icnDocument, bool newItem, const char *id )
+	: Component( icnDocument, newItem, id ? id : "matrix_display" )
+{
+	m_name = i18n("Matrix Display");
+	m_desc = i18n("A matrix display of LEDs with a configurable number of columns and rows.");
+	m_bDynamicContent = true;
+	
+	//BEGIN Reset members
+	for ( unsigned i = 0; i < max_md_height; i++ )
+		m_pRowNodes[i] = 0l;
+	for ( unsigned i = 0; i < max_md_width; i++ )
+		m_pColNodes[i] = 0l;
+	
+	m_lastUpdatePeriod = 0.0;
+	m_r = m_g = m_b = 0.0;
+	m_bRowCathode = true;
+	m_numRows = 0;
+	m_numCols = 0;
+	//END Reset members
+	
+	createProperty( "0-rows", Variant::Type::Int );
+	property("0-rows")->setCaption( i18n("Rows") );
+	property("0-rows")->setMinValue(1);
+	property("0-rows")->setMaxValue(max_md_height);
+	property("0-rows")->setValue(7);
+	
+	createProperty( "1-cols", Variant::Type::Int );
+	property("1-cols")->setCaption( i18n("Columns") );
+	property("1-cols")->setMinValue(1);
+	property("1-cols")->setMaxValue(max_md_width);
+	property("1-cols")->setValue(5);
+	
+	createProperty( "color", Variant::Type::Color );
+	property("color")->setCaption( i18n("Color") );
+	property("color")->setColorScheme( ColorCombo::LED );
+	
+	createProperty( "diode-configuration", Variant::Type::Select );
+	property("diode-configuration")->setCaption( i18n("Configuration") );
+	property("diode-configuration")->setAllowed( QStringList::split(',',"Row Cathode,Column Cathode") );
+	property("diode-configuration")->setValue("Row Cathode");
+	property("diode-configuration")->setAdvanced(true);
+}
+
+
+MatrixDisplay::~MatrixDisplay()
+{
+}
+
+
+void MatrixDisplay::dataChanged()
+{
+	QColor color = dataColor("color");
+	m_r = double(color.red())	/ double(0x100);
+	m_g = double(color.green())	/ double(0x100);
+	m_b = double(color.blue())	/ double(0x100);
+	
+	int numRows = dataInt("0-rows");
+	int numCols = dataInt("1-cols");
+	
+	bool ledsChanged = (numRows != int(m_numRows)) || (numCols != int(m_numCols));
+	
+	if (ledsChanged)
+		initPins( numRows, numCols );
+	
+	bool rowCathode = dataString("diode-configuration") == "Row Cathode";
+	if ( (rowCathode != m_bRowCathode) || ledsChanged)
+	{
+		m_bRowCathode = rowCathode;
+		
+		for ( unsigned i = 0; i < m_numCols; i++ )
+		{
+			for ( unsigned j = 0; j < m_numRows; j++ )
+			{
+				removeElement( m_pDiodes[i][j], false );
+				if (rowCathode)
+					m_pDiodes[i][j] = createDiode( m_pColNodes[i], m_pRowNodes[j] );
+				else
+					m_pDiodes[i][j] = createDiode( m_pRowNodes[j], m_pColNodes[i] );
+			}
+		}
+	}
+}
+
+
+void MatrixDisplay::initPins( unsigned numRows, unsigned numCols )
+{
+	if ( (numRows == m_numRows) && (numCols == m_numCols) )
+		return;
+	
+	if ( numRows > max_md_height )
+		numRows = max_md_height;
+	
+	if ( numCols > max_md_width )
+		numCols = max_md_width;
+	
+	m_lastUpdatePeriod = 0.0;
+	
+	//BEGIN Remove diodes
+	// All the diodes are going to be readded from dataChanged (where this
+	// function is called from), so easiest just to delete the diodes now and
+	// resize.
+	
+	for ( unsigned i = 0; i < m_numCols; i++ )
+	{
+		for ( unsigned j = 0; j < m_numRows; j++ )
+			removeElement( m_pDiodes[i][j], false );
+	}
+	
+	m_avgBrightness.resize(numCols);
+	m_lastBrightness.resize(numCols);
+	m_pDiodes.resize(numCols);
+	
+	for ( unsigned i = 0; i < numCols; i++ )
+	{
+		m_avgBrightness[i].resize(numRows);
+		m_lastBrightness[i].resize(numRows);
+		m_pDiodes[i].resize(numRows);
+		
+		for ( unsigned j = 0; j < numRows; j++ )
+		{
+			m_avgBrightness[i][j] = 0.0;
+			m_lastBrightness[i][j] = 255;
+			m_pDiodes[i][j] = 0l;
+		}
+			
+	}
+	//END Remove diodes
+	
+	
+	//BEGIN Create or destroy pins
+	if ( numCols >= m_numCols )
+	{
+		for ( unsigned i = m_numCols; i < numCols; i++ )
+			m_pColNodes[i] = createPin( 0, 0, 270, colPinID(i) );
+	}
+	else
+	{
+		for ( unsigned i = numCols; i < m_numCols; i++ )
+		{
+			removeNode( colPinID(i) );
+			m_pColNodes[i] = 0l;
+		}
+	}
+	m_numCols = numCols;
+	
+	if ( numRows >= m_numRows )
+	{
+		for ( unsigned i = m_numRows; i < numRows; i++ )
+			m_pRowNodes[i] = createPin( 0, 0, 0, rowPinID(i) );
+	}
+	else
+	{
+		for ( unsigned i = numRows; i < m_numRows; i++ )
+		{
+			removeNode( rowPinID(i) );
+			m_pRowNodes[i] = 0l;
+		}
+	}
+	m_numRows = numRows;
+	//END Create or destroy pins
+	
+	
+	//BEGIN Position pins et al
+	setSize( -int(numCols+1)*8, -int(numRows+1)*8, int(numCols+1)*16, int(numRows+1)*16, true );
+	
+	for ( int i = 0; i < int(m_numCols); i++ )
+	{
+		m_nodeMap[colPinID(i)].x = offsetX() + 16 + 16*i;
+		m_nodeMap[colPinID(i)].y = offsetY() + height() + 8;
+	}
+	
+	for ( int i = 0; i < int(m_numRows); i++ )
+	{
+		m_nodeMap[rowPinID(i)].x = offsetX() - 8;
+		m_nodeMap[rowPinID(i)].y = offsetY() + 16 + 16*i;
+	}
+	
+	updateAttachedPositioning();
+	//END Position pins et al
+}
+
+
+QString MatrixDisplay::colPinID( int col ) const
+{
+	return QString("col_%1").arg(QString::number(col));
+}
+QString MatrixDisplay::rowPinID( int row ) const
+{
+	return QString("row_%1").arg(QString::number(row));
+}
+
+
+void MatrixDisplay::stepNonLogic()
+{
+	double interval = 1./LINEAR_UPDATE_RATE;
+	
+	for ( unsigned i = 0; i < m_numCols; i++ )
+	{
+		for ( unsigned j = 0; j < m_numRows; j++ )
+			m_avgBrightness[i][j] += ECLed::brightness( m_pDiodes[i][j]->current() )*interval;
+	}
+	
+	m_lastUpdatePeriod += interval;
+}
+
+
+void MatrixDisplay::drawShape( QPainter &p )
+{
+	if ( isSelected() )
+		p.setPen(m_selectedCol);
+	p.drawRect( boundingRect() );
+	
+	initPainter(p);
+	
+	const int _x = int(x()+offsetX());
+	const int _y = int(y()+offsetY());
+	
+	// To avoid flicker, require at least a 10 ms sample before changing
+	// the brightness
+	double minUpdatePeriod = 0.0099;
+	
+	for ( int i = 0; i < int(m_numCols); i++ )
+	{
+		for ( int j = 0; j < int(m_numRows); j++ )
+		{
+			if ( m_lastUpdatePeriod > minUpdatePeriod )
+				m_lastBrightness[i][j] = unsigned(m_avgBrightness[i][j]/m_lastUpdatePeriod);
+			
+			double _b = m_lastBrightness[i][j];
+			
+			QColor brush = QColor( uint(255-(255-_b)*(1-m_r)), uint(255-(255-_b)*(1-m_g)), uint(255-(255-_b)*(1-m_b)) );
+			p.setBrush(brush);
+			p.setPen( Qt::NoPen );
+			p.drawEllipse( _x+10+i*16, _y+10+j*16, 12, 12 );
+		}
+	}
+	
+	if ( m_lastUpdatePeriod > minUpdatePeriod )
+	{
+		m_lastUpdatePeriod = 0.0;
+	
+		for ( unsigned i = 0; i < m_numCols; i++ )
+		{
+			for ( unsigned j = 0; j < m_numRows; j++ )
+				m_avgBrightness[i][j] = 0.0;
+		}
+	}
+	
+	deinitPainter(p);
+}