__author__ = 'markusro'

from PyQt4.QtGui import *
from PyQt4.QtCore import QRegExp
import PeakWidget


class LogFSpinBox(QDoubleSpinBox):
    scientificNotationValidator = QRegExpValidator(QRegExp("[+-]?(?:0|[1-9]\\d*)(?:\\.\\d*)?(?:[eE][+-]?\\d+)?"))

    def __init__(self, parent = None):
        super(LogFSpinBox, self).__init__(parent)
        self.setRange(1e-16,1e16)
        self.setMinimum(1e-16)
        self.setDecimals(17)
        self.setValue(1.0)
    def stepBy(self, up_down):
        print self.minimum(),self.maximum()
        if self.value() != 0.0:
            self.setValue(self.value()*10**(up_down/9.0)) # 19 steps per decade

    def textFromValue(self, value):
        return "%.3e"%value

    def valueFromText(self, str_value):
        return str_value.toDouble()[0]

    def validate(self, str_value, p_int):
        return self.scientificNotationValidator.validate(str_value, p_int)

class ParameterWidget(QWidget):
    def __init__(self, parent = None):
        super(ParameterWidget, self).__init__(parent)
        layout = QGridLayout(self)

if __name__ == "__main__":
    app = QApplication([])