QwtAlphaColorMap Class Reference

Inheritance diagram for QwtAlphaColorMap:

[legend]Collaboration diagram for QwtAlphaColorMap:

[legend]List of all members.

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Detailed Description

QwtAlphaColorMap variies the alpha value of a color.

Definition at line 160 of file qwt_color_map.h.

Public Member Functions
	QwtAlphaColorMap (const QColor &=QColor(Qt::gray))
	QwtAlphaColorMap (const QwtAlphaColorMap &)
virtual	~QwtAlphaColorMap ()
QwtAlphaColorMap &	operator= (const QwtAlphaColorMap &)
virtual QwtColorMap *	copy () const
void	setColor (const QColor &)
QColor	color () const
virtual QRgb	rgb (const QwtDoubleInterval &, double value) const

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Constructor & Destructor Documentation

QwtAlphaColorMap::QwtAlphaColorMap (  const QColor &  color = QColor(Qt::gray)  )

Constructor Parameters: color  Color of the map Definition at line 402 of file qwt_color_map.cpp. Referenced by copy().

QwtAlphaColorMap::QwtAlphaColorMap (  const QwtAlphaColorMap &  other  )

Copy constructor Parameters: other  Other color map Definition at line 414 of file qwt_color_map.cpp.

QwtAlphaColorMap::~QwtAlphaColorMap (   )  [virtual]

Destructor. Definition at line 422 of file qwt_color_map.cpp.

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Member Function Documentation

QColor QwtAlphaColorMap::color (   )  const

Returns: the color See also: setColor() Definition at line 465 of file qwt_color_map.cpp.

QwtColorMap * QwtAlphaColorMap::copy (   )  const [virtual]

Clone the color map. Implements QwtColorMap. Definition at line 441 of file qwt_color_map.cpp. References QwtAlphaColorMap().

QwtAlphaColorMap & QwtAlphaColorMap::operator= (  const QwtAlphaColorMap &  other  )

Assignment operator Parameters: other  Other color map Returns: *this Definition at line 432 of file qwt_color_map.cpp. References d_data.

QRgb QwtAlphaColorMap::rgb (  const QwtDoubleInterval &  interval, double  value )  const [virtual]

Map a value of a given interval into a alpha value. alpha := (value - interval.minValue()) / interval.width(); Parameters: interval  Range for all values value  Value to map into a rgb value Returns: rgb value, with an alpha value Implements QwtColorMap. Definition at line 479 of file qwt_color_map.cpp. References QwtDoubleInterval::isValid(), QwtDoubleInterval::minValue(), and QwtDoubleInterval::width().

void QwtAlphaColorMap::setColor (  const QColor &  color  )

Set the color Parameters: color  Color See also: color() Definition at line 455 of file qwt_color_map.cpp.

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