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//=========================================================
// MusE
// Linux Music Editor
// $Id: doublelabel.cpp,v 1.1.1.1 2003/10/29 10:06:27 wschweer Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
//=========================================================
#include <stdio.h>
#include "doublelabel.h"
#include <qvalidator.h>
#include <qpalette.h>
#include <stdio.h>
#include <values.h>
#include "utils.h"
//---------------------------------------------------------
// DoubleLabel
//---------------------------------------------------------
DoubleLabel::DoubleLabel(QWidget* parent, const char* name)
: Dentry(parent, name), _specialText("---")
{
min = 0.0;
max = 1.0;
_precision = 3;
setValue(0.0);
}
DoubleLabel::DoubleLabel(double _val, double m, double mx, QWidget* parent)
: Dentry(parent), _specialText("---")
{
min = m;
max = mx;
_precision = 3;
setValue(_val);
}
//---------------------------------------------------------
// setString
//---------------------------------------------------------
bool DoubleLabel::setString(double v)
{
QString s;
if (v < min || v > max) {
setText(_specialText);
return true;
}
s.setNum(v, 'f', _precision);
if (!_suffix.isEmpty()) {
s += " ";
s += _suffix;
}
setText(s);
return false;
}
//---------------------------------------------------------
// setSValue
//---------------------------------------------------------
bool DoubleLabel::setSValue(const QString& s)
{
bool ok;
double v = s.toDouble(&ok);
if (ok && (v != val)) {
if (v < min)
v = min;
if (v > max)
v = max;
setValue(v);
emit valueChanged(val, _id);
}
return false;
}
//---------------------------------------------------------
// incValue
//---------------------------------------------------------
void DoubleLabel::incValue(double)
{
if (val + 1.0 < max) {
setValue(val + 1.0);
emit valueChanged(val, _id);
}
}
//---------------------------------------------------------
// decValue
//---------------------------------------------------------
void DoubleLabel::decValue(double)
{
if (val - 1.0 > min) {
setValue(val - 1.0);
emit valueChanged(val, _id);
}
}
//---------------------------------------------------------
// setPrecision
//---------------------------------------------------------
void DoubleLabel::setPrecision(int v)
{
_precision = v;
setString(val);
}
//---------------------------------------------------------
// sizeHint
//---------------------------------------------------------
QSize DoubleLabel::sizeHint() const
{
QFontMetrics fm = fontMetrics();
int h = fm.height() + 4;
int n = _precision + 3;
#if 0
double aval = fabs(val);
if (aval >= 10.0)
++n;
if (aval >= 100.0)
++n;
if (aval >= 1000.0)
++n;
if (aval >= 10000.0)
++n;
if (aval >= 100000.0)
++n;
#endif
int w = fm.width(QString("-0.")) + fm.width('0') * n + 6;
return QSize(w, h);
}
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