#include <qwt_clrfltr.h>
Inherits QwtColorFilter.
Inheritance diagram for QwtFltrGray
Public Methods | |
QwtFltrGray (bool inv = FALSE) | |
QColor | operator() (const QColor &c) const |
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CTOR.
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Filter function which changes a color to grayscale.
Reimplemented from QwtColorFilter. |