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87 lines
2.5 KiB
87 lines
2.5 KiB
/***************************************************************************
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* Copyright (C) 2003-2005 by David Saxton *
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* david@bluehaze.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "ecnode.h"
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#include "ecsignallamp.h"
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#include "element.h"
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#include "libraryitem.h"
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#include "pin.h"
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#include <tdelocale.h>
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#include <tqpainter.h>
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Item* ECSignalLamp::construct( ItemDocument *itemDocument, bool newItem, const char *id )
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{
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return new ECSignalLamp( (ICNDocument*)itemDocument, newItem, id );
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}
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LibraryItem* ECSignalLamp::libraryItem()
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{
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return new LibraryItem(
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TQString("ec/signal_lamp"),
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i18n("Signal Lamp"),
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i18n("Outputs"),
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"signal_lamp.png",
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LibraryItem::lit_component,
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ECSignalLamp::construct );
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}
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ECSignalLamp::ECSignalLamp( ICNDocument *icnDocument, bool newItem, const char *id )
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: Component( icnDocument, newItem, (id) ? id : "signal_lamp" )
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{
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m_name = i18n("Signal Lamp");
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m_desc = i18n("A simple filament signal lamp, with a 100 ohms series resistance.");
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setSize( -8, -8, 16, 16 );
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init1PinLeft();
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init1PinRight();
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createResistance( m_pPNode[0], m_pNNode[0], 100. );
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advanceSinceUpdate = 0;
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avgPower = 0.;
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m_bDynamicContent = true;
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}
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ECSignalLamp::~ECSignalLamp()
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{
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}
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void ECSignalLamp::stepNonLogic()
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{
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const double voltage = m_pPNode[0]->pin()->voltage()-m_pNNode[0]->pin()->voltage();
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avgPower = TQABS(avgPower*advanceSinceUpdate + (voltage*voltage/100))/++advanceSinceUpdate;
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}
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void ECSignalLamp::drawShape( TQPainter &p )
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{
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initPainter(p);
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int _x = int(x());
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int _y = int(y());
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// Calculate the brightness as a linear function of power, bounded below by
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// 25 milliWatts and above by 500 milliWatts.
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int brightness = (avgPower<0.025) ? 255 : ((avgPower>0.5) ? 0 : (int)(255*(1-((avgPower-0.025)/0.475))));
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advanceSinceUpdate = 0;
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p.setBrush( TQColor( 255, 255, brightness ) );
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p.drawEllipse( _x-8, _y-8, 16, 16 );
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// 2*sqrt(2) = 2.828427125...
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int pos = 8 - int(16/2.828);
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p.drawLine( _x-8+pos, _y-8+pos, _x+8-pos, _y+8-pos );
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p.drawLine( _x+8-pos, _y-8+pos, _x-8+pos, _y+8-pos );
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deinitPainter(p);
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}
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