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120 lines
3.6 KiB
120 lines
3.6 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 "canvasitemparts.h"
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#include "ecnode.h"
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#include "ecpotentiometer.h"
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#include "libraryitem.h"
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#include "resistance.h"
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#include <tdelocale.h>
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#include <tqpainter.h>
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#include <tqstyle.h>
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Item* ECPotentiometer::construct( ItemDocument *itemDocument, bool newItem, const char *id )
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{
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return new ECPotentiometer( (ICNDocument*)itemDocument, newItem, id );
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}
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LibraryItem* ECPotentiometer::libraryItem()
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{
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return new LibraryItem(
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"ec/potentiometer",
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i18n("Potentiometer"),
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i18n("Discrete"),
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"potentiometer.png",
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LibraryItem::lit_component,
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ECPotentiometer::construct );
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}
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ECPotentiometer::ECPotentiometer( ICNDocument *icnDocument, bool newItem, const char *id )
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: Component( icnDocument, newItem, id ? id : "potentiometer" )
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{
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m_name = i18n("Potentiometer");
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m_desc =i18n("Consists of a resistor connected to the end pins, with a central pin connected at an adjustable point along the resistor");
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setSize( -16, -16, 40, 32 );
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m_p1 = createPin( 32, 0, 180, "p1" );
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m_sliderProp = 0.0;
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m_resistance = 5000.;
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m_r1 = createResistance( createPin( -8, -24, 90, "n1" ), m_p1, 1. );
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m_r2 = createResistance( createPin( -8, 24, 270, "n2" ), m_p1, 1. );
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Slider * s = addSlider( "slider", 0, 100, 5, 50, TQt::Vertical, TQRect( 0, -16, 16, 32 ) );
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m_pSlider = static_cast<TQSlider*>(s->widget());
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createProperty( "resistance", Variant::Type::Double );
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property("resistance")->setCaption( i18n("Resistance") );
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property("resistance")->setUnit( TQChar(0x3a9) );
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property("resistance")->setMinValue(1e-6);
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property("resistance")->setValue(1e5);
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addDisplayText( "res", TQRect( -56, -8, 40, 16 ), "" );
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}
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ECPotentiometer::~ECPotentiometer()
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{
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}
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void ECPotentiometer::dataChanged()
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{
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m_resistance = dataDouble("resistance");
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TQString display = TQString::number( m_resistance / getMultiplier(m_resistance), 'g', 3 ) + getNumberMag(m_resistance) + TQChar(0x3a9);
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setDisplayText( "res", display );
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sliderValueChanged( "slider", slider("slider")->value() );
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}
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void ECPotentiometer::sliderValueChanged( const TQString &id, int newValue )
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{
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if ( id != "slider" )
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return;
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m_sliderProp = (newValue-50.0)/100.0;
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m_r1->setResistance( m_resistance*(double)newValue/100. );
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m_r2->setResistance( m_resistance*(double)(100.-newValue)/100. );
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}
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void ECPotentiometer::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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p.drawRect( _x-14, _y-16, 12, 32 );
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TQPointArray pa(3);
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pa[0] = TQPoint( 0, 0 );
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pa[1] = TQPoint( 4, -3 );
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pa[2] = TQPoint( 4, 3 );
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int space = m_pSlider->style().pixelMetric( TQStyle::PM_SliderSpaceAvailable, m_pSlider );
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int base_y = _y + (( angleDegrees() == 0 || angleDegrees() == 270 ) ? 1 : -1) * int( space * m_sliderProp );
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pa.translate( _x+16, base_y );
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TQColor c = m_p1->isSelected() ? m_selectedCol : black;
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p.setPen(c);
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p.setBrush(c);
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p.drawPolygon(pa);
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p.drawLine( _x+20, base_y, _x+24, base_y );
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p.drawLine( _x+24, base_y, _x+24, _y );
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deinitPainter(p);
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}
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