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Diffstat (limited to 'src/electronics/components/ecclockinput.cpp')
| -rw-r--r-- | src/electronics/components/ecclockinput.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/electronics/components/ecclockinput.cpp b/src/electronics/components/ecclockinput.cpp new file mode 100644 index 0000000..7f1ec9c --- /dev/null +++ b/src/electronics/components/ecclockinput.cpp @@ -0,0 +1,185 @@ +/*************************************************************************** + * Copyright (C) 2003-2005 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 "ecclockinput.h" + +#include "logic.h" +#include "libraryitem.h" +#include "simulator.h" + +#include <klocale.h> +#include <qpainter.h> + +#include <cmath> + +static inline uint roundDouble( const double x ) +{ + return uint(std::floor(x+0.5)); +} + +Item* ECClockInput::construct( ItemDocument *itemDocument, bool newItem, const char *id ) +{ + return new ECClockInput( (ICNDocument*)itemDocument, newItem, id ); +} + +LibraryItem* ECClockInput::libraryItem() +{ + return new LibraryItem( + QString("ec/clock_input"), + i18n("Clock Input"), + i18n("Logic"), + "clockinput.png", + LibraryItem::lit_component, + ECClockInput::construct ); +} + +ECClockInput::ECClockInput( ICNDocument *icnDocument, bool newItem, const char *id ) + : Component( icnDocument, newItem, (id) ? id : "clock_input" ) +{ + m_name = i18n("Clock Input"); + m_desc = i18n("A square-wave generator, outputing logical high/low at repeating time intervals."); + setSize( -16, -8, 32, 16 ); + + m_lastSetTime = 0; + m_time = 0; + m_high_time = 0; + m_low_time = 0; + m_period = 0; + m_bSetStepCallbacks = true; + m_pSimulator = Simulator::self(); + + for ( unsigned i = 0; i < 1000; i++ ) + { + ComponentCallback * ccb = new ComponentCallback( this, (VoidCallbackPtr)(&ECClockInput::stepCallback) ); + m_pComponentCallback[i] = new LinkedList<ComponentCallback>(ccb); + } + + init1PinRight(); + m_pOut = createLogicOut( m_pPNode[0], false ); + + createProperty( "low-time", Variant::Type::Double ); + property("low-time")->setUnit("S"); + property("low-time")->setCaption( i18n("Low Time") ); + property("low-time")->setMinValue(1.0/LOGIC_UPDATE_RATE); + property("low-time")->setValue(0.5); + + createProperty( "high-time", Variant::Type::Double ); + property("high-time")->setUnit("S"); + property("high-time")->setCaption( i18n("High Time") ); + property("high-time")->setMinValue(1.0/LOGIC_UPDATE_RATE); + property("high-time")->setValue(0.5); + + addDisplayText( "freq", QRect( -16, -24, 32, 14 ), "", false ); +} + + +ECClockInput::~ECClockInput() +{ + for ( unsigned i = 0; i < 1000; i++ ) + { + delete m_pComponentCallback[i]->data(); + delete m_pComponentCallback[i]; + } +} + + +void ECClockInput::dataChanged() +{ + m_high_time = roundDouble(dataDouble("high-time")*LOGIC_UPDATE_RATE); + m_low_time = roundDouble(dataDouble("low-time")*LOGIC_UPDATE_RATE); + m_period = m_low_time+m_high_time; + + const double frequency = 1./(dataDouble("high-time")+dataDouble("low-time")); + QString display = QString::number( frequency / getMultiplier(frequency), 'g', 3 ) + getNumberMag(frequency) + "Hz"; + setDisplayText( "freq", display ); + + bool setStepCallbacks = m_period > 100; + if ( setStepCallbacks != m_bSetStepCallbacks ) + { + m_bSetStepCallbacks = setStepCallbacks; + if (setStepCallbacks) + m_pSimulator->detachComponentCallbacks(this); + else + m_pSimulator->attachComponentCallback( this, (VoidCallbackPtr)(&ECClockInput::stepLogic) ); + } + + m_bLastStepCallbackOut = false; + m_lastSetTime = m_pSimulator->time(); +} + + +void ECClockInput::stepLogic() +{ + m_pOut->setHigh( m_time>m_low_time ); + + if ( ++m_time > m_period ) { + m_time -= int(m_time/m_period)*m_period; + } +} + + +void ECClockInput::stepCallback() +{ + m_pOut->setHigh(m_bLastStepCallbackOut); + m_bLastStepCallbackOut = !m_bLastStepCallbackOut; +} + + +void ECClockInput::stepNonLogic() +{ + if (!m_bSetStepCallbacks) + return; + + bool addingHigh = !m_bLastStepCallbackOut; + + //TODO 100 number shouldn't be hard-coded + long long lowerTime = m_pSimulator->time(); + long long upperTime = lowerTime + 100; + + long long upTo = m_lastSetTime; + + while ( upTo + (addingHigh?m_high_time:m_low_time) < upperTime ) + { + upTo += addingHigh ? m_high_time : m_low_time; + addingHigh = !addingHigh; + + long long at = upTo-lowerTime; + if ( at >= 0 && at < 100 ) + m_pSimulator->addStepCallback( at, m_pComponentCallback[at] ); + } + + m_lastSetTime = upTo; +} + + +void ECClockInput::drawShape( QPainter &p ) +{ + initPainter(p); + + int _x = (int)x()-10; + int _y = (int)y()-8; + + p.drawRect( _x-6, _y, 32, 16 ); + + p.drawLine( _x, _y+8, _x, _y+4 ); + p.drawLine( _x, _y+4, _x+4, _y+4 ); + p.drawLine( _x+4, _y+4, _x+4, _y+12 ); + p.drawLine( _x+4, _y+12, _x+8, _y+12 ); + p.drawLine( _x+8, _y+12, _x+8, _y+4 ); + p.drawLine( _x+8, _y+4, _x+12, _y+4 ); + p.drawLine( _x+12, _y+4, _x+12, _y+12 ); + p.drawLine( _x+12, _y+12, _x+16, _y+12 ); + p.drawLine( _x+16, _y+12, _x+16, _y+4 ); + p.drawLine( _x+16, _y+4, _x+20, _y+4 ); + p.drawLine( _x+20, _y+4, _x+20, _y+8 ); + + deinitPainter(p); +} + |