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...
virtual HSLAPixel	getColor (unsigned x, unsigned y)=0
	Select a color for the given point (x, y) All derived classes needs to implement this. More...

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.

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

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