Exemple #1
0
 def __init__(self,
              name,
              color0=QColor("black"),
              color1=QColor("white"),
              alpha=(1, 1)):
     QObject.__init__(self)
     self.name = name
     # color is either specified as one argument (which should then be a [3,n] or [4,n] array),
     # or as two QColors orstring names.
     if isinstance(color0, (list, tuple)):
         self._rgb = numpy.array(color0)
         if self._rgb.shape[1] != 3 or self._rgb.shape[0] < 2:
             raise TypeError(
                 "expected [N,3] (N>=2) array as first argument")
     else:
         if isinstance(color0, str):
             color0 = QColor(color0)
         if isinstance(color1, str):
             color1 = QColor(color1)
         self._rgb = numpy.array([[
             color0.red(), color0.green(),
             color0.blue()
         ], [color1.red(), color1.green(),
             color1.blue()]]) / 255.
     self._rgb_arg = numpy.arange(
         self._rgb.shape[0]) / (self._rgb.shape[0] - 1.0)
     # alpha array
     self._alpha = numpy.array(alpha).astype(float)
     self._alpha_arg = numpy.arange(len(alpha)) / (len(alpha) - 1.0)
     # background brush
     self._brush = None
Exemple #2
0
def getColorDesc(_colorTag, outputAlpha=False):

    if _colorTag is None:
        return QColor(Qt.yellow), "#FFFF00"

    colorTag = _colorTag.lower()
    if (colorTag == "red"):
        qtColor = QColor(Qt.red)
    elif (colorTag == "green"):
        qtColor = QColor(Qt.green)
    elif (colorTag == "blue"):
        qtColor = QColor(Qt.blue)
    elif (colorTag == "cyan"):
        qtColor = QColor(Qt.cyan)
    elif (colorTag == "darkGray"):
        qtColor = QColor(Qt.darkGray)
    elif (colorTag == "magenta"):
        qtColor = QColor(Qt.magenta)
    elif (colorTag[0] == "#"):
        colorHexDesc = colorTag
        qtColor = hexColorStrToQtColor(colorTag, outputAlpha)
    else:
        qtColor = QColor(Qt.yellow)
        colorHexDesc = "#FFFF00"

    if qtColor is not None:
        colorHexDesc = "#%02x%02x%02x" % (qtColor.red(), qtColor.green(),
                                          qtColor.blue())

    # LOG.info("qtColor = {}, colorHexDesc = {}".format(qtColor, colorHexDesc))
    return qtColor, colorHexDesc
Exemple #3
0
 def __init__(self, name, color0=QColor("black"), color1=QColor("white"), alpha=(1, 1)):
     QObject.__init__(self)
     self.name = name
     # color is either specified as one argument (which should then be a [3,n] or [4,n] array),
     # or as two QColors orstring names.
     if isinstance(color0, (list, tuple)):
         self._rgb = numpy.array(color0)
         if self._rgb.shape[1] != 3 or self._rgb.shape[0] < 2:
             raise TypeError("expected [N,3] (N>=2) array as first argument")
     else:
         if isinstance(color0, str):
             color0 = QColor(color0)
         if isinstance(color1, str):
             color1 = QColor(color1)
         self._rgb = numpy.array([[color0.red(), color0.green(), color0.blue()],
                                  [color1.red(), color1.green(), color1.blue()]]) / 255.
     self._rgb_arg = numpy.arange(self._rgb.shape[0]) / (self._rgb.shape[0] - 1.0)
     # alpha array
     self._alpha = numpy.array(alpha).astype(float)
     self._alpha_arg = numpy.arange(len(alpha)) / (len(alpha) - 1.0)
     # background brush
     self._brush = None