ColorFilterStrategyHue Class Reference

Leaf class for hue strategy for ColorFilter. More...

#include <ColorFilterStrategyHue.h>

Inheritance diagram for ColorFilterStrategyHue:

Collaboration diagram for ColorFilterStrategyHue:

Public Member Functions
	ColorFilterStrategyHue ()
	Single constructor.
virtual	~ColorFilterStrategyHue ()
virtual double	pixelToZeroToOne (const QColor &pixel, QRgb rgbBackground) const
	Return a normalized value of 0 to 1 given input pixel.
virtual int	zeroToOneToValue (double s) const
	Return the low value normalized to 0 to 1.
Public Member Functions inherited from ColorFilterStrategyAbstractBase
	ColorFilterStrategyAbstractBase ()
	Single constructor.
virtual	~ColorFilterStrategyAbstractBase ()

Detailed Description

Leaf class for hue strategy for ColorFilter.

Definition at line 13 of file ColorFilterStrategyHue.h.

Constructor & Destructor Documentation

ColorFilterStrategyHue()

ColorFilterStrategyHue::ColorFilterStrategyHue

(

)

Single constructor.

Definition at line 12 of file ColorFilterStrategyHue.cpp.

{
}

~ColorFilterStrategyHue()

ColorFilterStrategyHue::~ColorFilterStrategyHue ( )

virtual

Definition at line 16 of file ColorFilterStrategyHue.cpp.

{
}

Member Function Documentation

pixelToZeroToOne()

double ColorFilterStrategyHue::pixelToZeroToOne ( const QColor & pixel, QRgb rgbBackground ) const

virtual

Return a normalized value of 0 to 1 given input pixel.

Implements ColorFilterStrategyAbstractBase.

Definition at line 20 of file ColorFilterStrategyHue.cpp.

{
  double s = pixel.hueF();
  if (s < 0) {
    // Color is achromatic (r=g=b) so it has no hue
  }
  
  return s;
}

zeroToOneToValue()

int ColorFilterStrategyHue::zeroToOneToValue ( double s ) const

virtual

Return the low value normalized to 0 to 1.

Implements ColorFilterStrategyAbstractBase.

Definition at line 31 of file ColorFilterStrategyHue.cpp.

{
  return qFloor (HUE_MIN + s * (HUE_MAX - HUE_MIN));
}

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The documentation for this class was generated from the following files:

• Color/ColorFilterStrategyHue.h
• Color/ColorFilterStrategyHue.cpp