From 5de3dd4762ca33a0f92e79ffa4fe2ff67069d531 Mon Sep 17 00:00:00 2001
From: tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 24 Feb 2010 01:49:02 +0000
Subject: Added KDE3 version of ktechlab

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktechlab@1095338 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 src/electronics/components/ecled.cpp | 134 +++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 src/electronics/components/ecled.cpp

(limited to 'src/electronics/components/ecled.cpp')

diff --git a/src/electronics/components/ecled.cpp b/src/electronics/components/ecled.cpp
new file mode 100644
index 0000000..c865de6
--- /dev/null
+++ b/src/electronics/components/ecled.cpp
@@ -0,0 +1,134 @@
+/***************************************************************************
+ *   Copyright (C) 2003 by David Saxton                                    *
+ *   david@bluehaze.org                                                    *
+ *                                                                         *
+ *   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 "simulator.h"
+
+#include <klocale.h>
+#include <qpainter.h>
+
+Item* ECLed::construct( ItemDocument *itemDocument, bool newItem, const char *id )
+{
+	return new ECLed( (ICNDocument*)itemDocument, newItem, id );
+}
+
+LibraryItem* ECLed::libraryItem()
+{
+	return new LibraryItem(
+		QString::QString("ec/led"),
+		i18n("LED"),
+		i18n("Outputs"),
+		"led.png",
+		LibraryItem::lit_component,
+		ECLed::construct
+			);
+}
+
+ECLed::ECLed( ICNDocument *icnDocument, bool newItem, const char *id )
+	: ECDiode( icnDocument, newItem, (id) ? id : "led" )
+{
+	m_bDynamicContent = true;
+	m_name = i18n("LED");
+	m_desc = i18n("Light Emitting Diode");
+	setSize( -8, -16, 24, 24, true );
+	avg_brightness = 255;
+	lastUpdatePeriod = 0.;
+	r=g=b=0;
+	last_brightness = 255;
+	
+	createProperty( "0-color", Variant::Type::Color );
+	property("0-color")->setCaption( i18n("Color") );
+	property("0-color")->setColorScheme( ColorCombo::LED );
+}
+
+ECLed::~ECLed()
+{
+}
+
+void ECLed::dataChanged()
+{
+	QColor color = dataColor("0-color");
+	r = color.red();
+	g = color.green();
+	b = color.blue();
+	r /= 0x100;
+	g /= 0x100;
+	b /= 0x100;
+}
+
+void ECLed::stepNonLogic()
+{
+	double interval = 1./LINEAR_UPDATE_RATE;
+	avg_brightness += brightness(m_diode->current())*interval;
+	lastUpdatePeriod += interval;
+}
+
+void ECLed::drawShape( QPainter &p )
+{
+	int _x = int(x());
+	int _y = int(y());
+	
+	initPainter(p);
+	
+	//BEGIN draw "Diode" part
+	uint _b;
+	if ( lastUpdatePeriod == 0. )
+		_b = last_brightness;
+	else
+	{
+		_b = (uint)(avg_brightness/lastUpdatePeriod);
+		last_brightness = _b;
+	}
+	avg_brightness = 0.;
+	lastUpdatePeriod = 0.;
+	
+	p.setBrush( QColor( uint(255-(255-_b)*(1-r)), uint(255-(255-_b)*(1-g)), uint(255-(255-_b)*(1-b)) ) );
+	
+	QPointArray pa(3);
+	pa[0] = QPoint( 8, 0 );
+	pa[1] = QPoint( -8, -8 );
+	pa[2] = QPoint( -8, 8 );
+	pa.translate( _x, _y );
+	p.drawPolygon(pa);
+	p.drawPolyline(pa);
+	
+	p.drawLine( _x+8, _y-8, _x+8, _y+8 );
+	//END draw "Diode" part
+	
+	
+	
+	//BEGIN draw "Arrows" part
+	p.drawLine( _x+7, _y-10, _x+10, _y-13 ); // Tail of left arrow
+	p.drawLine( _x+10, _y-13, _x+8, _y-13 ); // Left edge of left arrow tip
+	p.drawLine( _x+10, _y-13, _x+10, _y-11 ); // Right edge of left arrow tip
+	
+	p.drawLine( _x+10, _y-7, _x+13, _y-10 ); // Tail of right arrow
+	p.drawLine( _x+13, _y-10, _x+11, _y-10 ); // Left edge of right arrow tip
+	p.drawLine( _x+13, _y-10, _x+13, _y-8 ); // Right edge of right arrow tip
+	
+	p.drawLine( _x+8, _y-13, _x+13, _y-8 ); // Diagonal line that forms base of both arrow tips
+	//END draw "Arrows" part1
+	
+	
+	deinitPainter(p);
+}
+
+
+uint ECLed::brightness( double i )
+{
+	if ( i > 0.018 ) return 0;
+	if ( i < 0.002 ) return 255;
+	return (uint)(255*(1-((i-0.002)/0.016)));
+}
+
-- 
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