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87 lines
2.0 KiB
87 lines
2.0 KiB
// Copyright: See COPYING file that comes with this distribution
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//
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// Original Author: Ewald R. de Wit
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// From Qt-Interest mailing list
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// http://lists.trolltech.com/qt-interest/1999-07/thread00400-0.html
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//
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// (c) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>
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#include <tqvalidator.h>
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#include <math.h>
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#include "floatspinbox.h"
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#define ROUND(x) ((int)(0.5 + (x)))
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FloatSpinBox::FloatSpinBox(double fmin, double fmax, double fvalue, TQWidget *parent) : TQSpinBox(parent)
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{
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init(fmin, fmax, fvalue);
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connect( this, SIGNAL(valueChanged(int)), SLOT(acceptValueChanged(int)) );
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}
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FloatSpinBox::FloatSpinBox(TQWidget *parent , const char* name) : TQSpinBox(parent, name)
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{
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connect( this, SIGNAL(valueChanged(int)), SLOT(acceptValueChanged(int)) );
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}
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void FloatSpinBox::init(double fmin, double fmax, double fvalue) {
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min = fmin;
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max = fmax;
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value = fvalue;
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// How many decimals after the floating point?
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dec = ((fmax - fmin) == 0) ? 2 : 2 - (int)( log10(fabs(fmax - fmin)) );
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if (dec < 0) dec = 0;
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int intmax = (int)((max - min) * pow( 10, dec ));
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int intval = ROUND( (value - min) * pow( 10, dec ) );
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setRange( 0, intmax );
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setValue( intval );
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setSteps( 10, 100 );
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TQDoubleValidator *validator = new TQDoubleValidator(min, max, dec, this);
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setValidator(validator);
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}
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void FloatSpinBox::setFloatMin(double fmin) {
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init(fmin, max, value);
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}
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void FloatSpinBox::setFloatMax(double fmax) {
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init(min, fmax, value);
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}
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TQString FloatSpinBox::mapValueToText(int ival)
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{
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TQString str;
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value = min + (double)ival * pow(10, -dec);
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str.sprintf("%.*f", dec, value);
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return( str );
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}
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int FloatSpinBox::mapTextToValue (bool * ok)
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{
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TQString str = cleanText();
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double tryValue = str.toDouble( ok );
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if (*ok) {
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value = tryValue;
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}
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return ROUND( (value - min) * pow( 10, dec ) );
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}
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void FloatSpinBox::setFloatValue(double d)
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{
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value = d;
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setValue( ROUND( (value - min) * pow( 10, dec )) );
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}
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void FloatSpinBox::acceptValueChanged(int ival)
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{
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emit floatValueChanged( value );
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}
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FloatSpinBox::~FloatSpinBox()
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{
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//
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} |