jhelp.util.gui

Interface JHelpPaint

All Known Implementing Classes:

JHelpGradient, JHelpGradientHorizontal, JHelpGradientVertical

public interface JHelpPaint

Paint for fill a shape.
When the paint is used, first its called initializePaint(int, int) to give to the paint information about size of the bounding box of the shape it will be filled. Then for each pixel inside the shape it will call obtainColor(int, int) to know the color to use for a specific point inside the shape. Coordinate are relative to the shape, in other words (0, 0) is the upper left corner of the bonding box of the shape

Author:

JHelp

Method Summary

Methods

Modifier and Type	Method and Description
void	initializePaint(int width, int height) Initialize the shape.
int	obtainColor(int x, int y) Compute color to use for a specific point.

Method Detail

initializePaint

void initializePaint(int width,
                   int height)

Initialize the shape.
It is called just before fill shape with this paint.

Parameters:

width - Shape bounding box width

height - Shape bounding box height

obtainColor

int obtainColor(int x,
              int y)

Compute color to use for a specific point.
Coordinate are relative to the bounding box upper left corner

Parameters:

x - X of the pixel coordinate

y - Y of the pixel coordinate

Returns:

Computed color