GradientColorPicker Class Reference

A color picker class using gradient color picking algorithm. More...

#include <GradientColorPicker.h>

Inheritance diagram for GradientColorPicker:

Collaboration diagram for GradientColorPicker:

Public Member Functions
	GradientColorPicker (HSLAPixel color1, HSLAPixel color2, Point center, unsigned radius)
	GradientColorPicker constructor. More...
HSLAPixel	getColor (unsigned x, unsigned y)
	Picks the color for pixel (x, y). More...
Public Member Functions inherited from ColorPicker
virtual	~ColorPicker ()
	Class destructor. More...

Private Attributes
HSLAPixel	color1
HSLAPixel	color2
Point	center
unsigned	radius

Detailed Description

A color picker class using gradient color picking algorithm.

Constructor & Destructor Documentation

GradientColorPicker()

GradientColorPicker::GradientColorPicker	(	HSLAPixel	color1,
		HSLAPixel	color2,
		Point	center,
		unsigned	radius
	)

GradientColorPicker constructor.

Member Function Documentation

getColor()

HSLAPixel GradientColorPicker::getColor ( unsigned  x, unsigned  y  )

virtual

Picks the color for pixel (x, y).

The first color fades into the second color as you move from the initial fill point, the center, to the radius. Beyond the radius, all pixels should be just color2.

You should calculate the distance between two points using the standard euclidean distance formula.

Then, scale each of the three channels (H, S, and L) from color1 to color2 linearly from d = 0 to d = radius.

Parameters

x	The x coordinate to pick a color for.
y	The y coordinate to pick a color for.

Returns

The color selected for (x, y).

Implements ColorPicker.

Member Data Documentation

center

Point GradientColorPicker::center

private

color1

HSLAPixel GradientColorPicker::color1

private

color2

HSLAPixel GradientColorPicker::color2

private

radius

unsigned GradientColorPicker::radius

private

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

• colorPicker/GradientColorPicker.h
• colorPicker/GradientColorPicker.cpp