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Diffstat (limited to 'attic/muse2-oom/muse2/muse/widgets/spinboxFP.cpp')
| -rw-r--r-- | attic/muse2-oom/muse2/muse/widgets/spinboxFP.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/attic/muse2-oom/muse2/muse/widgets/spinboxFP.cpp b/attic/muse2-oom/muse2/muse/widgets/spinboxFP.cpp new file mode 100644 index 00000000..2d8f3372 --- /dev/null +++ b/attic/muse2-oom/muse2/muse/widgets/spinboxFP.cpp @@ -0,0 +1,172 @@ +//========================================================= +// MusE +// Linux Music Editor +// $Id: spinboxFP.cpp,v 1.1.1.1 2003/10/27 18:55:03 wschweer Exp $ +// (C) Copyright 2001 Werner Schweer (ws@seh.de) +//========================================================= + +#include <stdio.h> +#include <cmath> + +//#include <QtGui> +//#include <QDoubleValidator> +//#include <QLineEdit> + +#include "spinboxFP.h" + +//--------------------------------------------------------- +// SpinBoxFP +//--------------------------------------------------------- + +SpinBoxFP::SpinBoxFP(QWidget* parent) + //: QSpinBox(parent) + : QDoubleSpinBox(parent) + { + //validator = new QDoubleValidator(this); + //lineEdit()->setValidator(validator = new QDoubleValidator(this)); + //validator->setNotation(QDoubleValidator::StandardNotation); + + //_decimals = 0; + setDecimals(0); + + connect(this, SIGNAL(valueChanged(double)), SLOT(valueChange(double))); + } + +SpinBoxFP::SpinBoxFP(int minValue, int maxValue, int step, QWidget* parent) +//SpinBoxFP::SpinBoxFP(double minValue, double maxValue, double step, QWidget* parent) + //: QSpinBox(parent) + : QDoubleSpinBox(parent) + { + //validator = new QDoubleValidator(this); + //lineEdit()->setValidator(validator = new QDoubleValidator(this)); + //validator->setNotation(QDoubleValidator::StandardNotation); + + //_decimals = 0; + QDoubleSpinBox::setDecimals(0); + + setRange(minValue, maxValue); + setSingleStep(step); + + connect(this, SIGNAL(valueChanged(double)), SLOT(valueChange(double))); + } + +//--------------------------------------------------------- +// valueChange +//--------------------------------------------------------- + +void SpinBoxFP::valueChange(double) +{ + double div = exp10(decimals()); + emit valueChanged(int(value() * div)); +} + +//--------------------------------------------------------- +// setValue +//--------------------------------------------------------- + +void SpinBoxFP::setValue(int val) + { + double div = exp10(decimals()); + QDoubleSpinBox::setValue(double(val) / div ); + } + +//--------------------------------------------------------- +// intValue +//--------------------------------------------------------- + +int SpinBoxFP::intValue() + { + double div = exp10(decimals()); + return int(value() * div); + } + +//--------------------------------------------------------- +// setDecimals +//--------------------------------------------------------- + +void SpinBoxFP::setDecimals(int val) + { + //_decimals = val; + + //updateDisplay(); + //interpretText(); // TODO: Check - is this what we need? Will send out signals? + //setValue(value()); // Try this. "setValue() will emit valueChanged() if the new value is different from the old one." + + QDoubleSpinBox::setDecimals(val); + double step = 1.0 / exp10(val); + setSingleStep(step); + } + +/* +//--------------------------------------------------------- +// validate +//--------------------------------------------------------- + +QValidator::State SpinBoxFP::validate(QString& input, int& pos) const +{ + // Must set these dynamically as settings may have changed. + validator->setRange(minimum(), maximum(), _decimals); + + QValidator::State s = validator->validate(input, pos); + return s; +} + +//--------------------------------------------------------- +// mapValueToText +//--------------------------------------------------------- + +QString SpinBoxFP::textFromValue(int value) const + { + if (_decimals) { + QString s; + int div = int(exp10(_decimals)); +// printf("val %d, prec %d, div %d\n", value, _precision, div); + + s.sprintf("%d.%0*d", value/div, _decimals, value%div); + //s.sprintf("%0*f", value, _decimals); + + return s; + } + return QSpinBox::textFromValue(value); + } + +//--------------------------------------------------------- +// mapTextToValue +//--------------------------------------------------------- + +int SpinBoxFP::valueFromText(const QString& text) const + { + //QString qs = cleanText(); + if (_decimals) { + //const char* s = qs.toLatin1(); + //const char* s = cleanText().toAscii().data(); + + //int a, b; + bool ok; + double f = text.toDouble(&ok); + + //int n = sscanf(s, "%d.%d", &a, &b); + //int n = sscanf(s, "%f", &f); + + //if (n != 2) { + //if (n != 1) { + if (!ok) { + + // *ok = false; + //return 0; + // TODO: Check - Hmm, no OK parameter. Why return 0? Let's try: + // Keep returning the current value until something valid comes in... + return value(); + } + + //int div = int(exp10(_decimals)); + double div = int(exp10(_decimals)); + + //return a * div + b; + return (f * div); + + } + return QSpinBox::valueFromText(text); + } + +*/
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