ground/gcs/src/libs/qscispinbox/QScienceSpinBox.h

   1 /**
   2  * Code copied from http://www.matthiaspospiech.de/blog/2009/01/03/qt-spinbox-widget-with-scientific-notation/
   3  */
   4 #ifndef __QScienceSpinBox_H__
   5 #define __QScienceSpinBox_H__
   6
   7 #include <QDoubleSpinBox>
   8 #include <QDoubleValidator>
   9 #include <QLineEdit>
  10 #include <QtCore/QVariant>
  11 #include <QtCore/QDebug>
  12 #include <QtCore/QString>
  13
  14
  15 class QScienceSpinBox : public QDoubleSpinBox {
  16     Q_OBJECT
  17 public:
  18     QScienceSpinBox(QWidget *parent = 0);
  19
  20     int decimals() const;
  21     void setDecimals(int value);
  22
  23     QString textFromValue(double value) const;
  24     double valueFromText(const QString & text) const;
  25     static bool isIntermediateValueHelper(qint64 num, qint64 minimum, qint64 maximum, qint64 *match = 0);
  26
  27 private:
  28     int dispDecimals;
  29     QChar delimiter, thousand;
  30     QDoubleValidator *v;
  31
  32
  33 private:
  34     void initLocalValues(QWidget *parent);
  35     bool isIntermediateValue(const QString &str) const;
  36     QVariant validateAndInterpret(QString &input, int &pos, QValidator::State &state) const;
  37     QValidator::State validate(QString &text, int &pos) const;
  38     void fixup(QString &input) const;
  39     QString stripped(const QString &t, int *pos) const;
  40     double round(double value) const;
  41     void stepBy(int steps);
  42
  43 public slots:
  44     void stepDown();
  45     void stepUp();
  46 };
  47
  48 #endif // ifndef __QScienceSpinBox_H__