Developer Documentation

QtLessAnnoyingDoubleSpinBox.cc
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40 \*===========================================================================*/
41
42 //=============================================================================
43 //
44 // CLASS QtLessAnnoyingQDoubleSpinBox
45 //
46 //=============================================================================
47
48
49 #include "QtLessAnnoyingDoubleSpinBox.hh"
50 #include <cmath>
51
52
53 QtLessAnnoyingDoubleSpinBox::QtLessAnnoyingDoubleSpinBox(QWidget* _qwidget ) : QDoubleSpinBox(_qwidget)
54 {
55 }
56
57 QValidator::State QtLessAnnoyingDoubleSpinBox::validate(QString& text, int&) const
58 {
59 QString copy = strip_prefix_suffix(text) + "0";
60
61 bool ok;
62 copy.toDouble(&ok);
63 if ( ok )
64 return QValidator::Acceptable;
65 else
66 return QValidator::Invalid;
67 }
68
69 double QtLessAnnoyingDoubleSpinBox::valueFromText(const QString &text) const
70 {
71 QString copy = strip_prefix_suffix(text);
72
73 bool ok;
74 double value = copy.toDouble(&ok);
75
76 double factor = std::pow(10.0, decimals() );
77 value = double( long(value * double(factor) + 0.5) ) / factor;
78
79 if ( !ok )
80 return 0;
81
82 return value;
83 }
84
85 QString QtLessAnnoyingDoubleSpinBox::strip_prefix_suffix(const QString& text) const
86 {
87 int lenpre = prefix().length();
88 int lensuf = suffix().length();
89
90 return text.mid( lenpre, text.length() - lenpre -lensuf ).simplified();
91 }