us.daveread.basicquery.gui

Class FlashForeground

java.lang.Object

us.daveread.basicquery.gui.FlashForeground

All Implemented Interfaces:

java.lang.Runnable

public class FlashForeground
extends java.lang.Object
implements java.lang.Runnable

Title: Flash foreground

Description: Eye candy modifying the foreground color of a component

Copyright: Copyright (c) 2004-2014, David Read

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Author:

David Read

Field Summary

Fields

Modifier and Type	Field and Description
private int	blueChange Amount of change for the blue component of the RGB color at each step in the coloring cycle
private int	blueModulus The modulus value of the iteration counter for changing the blue component of the RGB color
private int	blueOff Blue color value for RGB coloring when the flash is "off"
private int	blueOn Blue color value for RGB coloring when the flash is "on"
private int	blueValue Current blue value in the RGB color
private java.awt.Component	component The component backing this instance
private int	currentValue The current value of the iteration counter cycling through the component color ranges from "on" to "off"
private int	direction The current iteration direction (1=up or -1=down).
private int	greenChange Amount of change for the green component of the RGB color at each step in the coloring cycle
private int	greenModulus The modulus value of the iteration counter for changing the green component of the RGB color
private int	greenOff Green color value for RGB coloring when the flash is "off"
private int	greenOn Green color value for RGB coloring when the flash is "on"
private int	greenValue Current green value in the RGB color
private static org.apache.log4j.Logger	LOGGER Logger
private int	maxChange The maximum range of the iteration counter to cycle through the component color ranges from "on" to "off"
private int	msDelay Delay time when cycling the steps between "on" and "off" colors
private java.awt.Color	offColor The color to display when the flash is "off"
private java.awt.Color	onColor The color to display when the flash is "on"
private int	redChange Amount of change for the red component of the RGB color at each step in the coloring cycle
private int	redModulus The modulus value of the iteration counter for changing the red component of the RGB color
private int	redOff Red color value for RGB coloring when the flash is "off"
private int	redOn Red color value for RGB coloring when the flash is "on"
private int	redValue Current red value in the RGB color

Constructor Summary

Constructors

Constructor and Description
FlashForeground(java.awt.Component aComp, java.awt.Color aOnColor, java.awt.Color aOffColor, int aMSDelay) Create a FlashForeground instance, associated with a specific component.

Method Summary

Methods

Modifier and Type	Method and Description
private void	computeChange() Compute the RGB values for the "On" and "Off" colors.
private java.awt.Color	nextColor() Calculate the next color to be used for the foreground.
void	run() Oscillate the component colors until an interrupt is received.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

private static final org.apache.log4j.Logger LOGGER

Logger

component

private java.awt.Component component

The component backing this instance

onColor

private java.awt.Color onColor

The color to display when the flash is "on"

offColor

private java.awt.Color offColor

The color to display when the flash is "off"

msDelay

private int msDelay

Delay time when cycling the steps between "on" and "off" colors

redOn

private int redOn

Red color value for RGB coloring when the flash is "on"

redOff

private int redOff

Red color value for RGB coloring when the flash is "off"

greenOn

private int greenOn

Green color value for RGB coloring when the flash is "on"

greenOff

private int greenOff

Green color value for RGB coloring when the flash is "off"

blueOn

private int blueOn

Blue color value for RGB coloring when the flash is "on"

blueOff

private int blueOff

Blue color value for RGB coloring when the flash is "off"

redChange

private int redChange

Amount of change for the red component of the RGB color at each step in the coloring cycle

greenChange

private int greenChange

Amount of change for the green component of the RGB color at each step in the coloring cycle

blueChange

private int blueChange

Amount of change for the blue component of the RGB color at each step in the coloring cycle

redValue

private int redValue

Current red value in the RGB color

greenValue

private int greenValue

Current green value in the RGB color

blueValue

private int blueValue

Current blue value in the RGB color

redModulus

private int redModulus

The modulus value of the iteration counter for changing the red component of the RGB color

greenModulus

private int greenModulus

The modulus value of the iteration counter for changing the green component of the RGB color

blueModulus

private int blueModulus

The modulus value of the iteration counter for changing the blue component of the RGB color

maxChange

private int maxChange

The maximum range of the iteration counter to cycle through the component color ranges from "on" to "off"

currentValue

private int currentValue

The current value of the iteration counter cycling through the component color ranges from "on" to "off"

direction

private int direction

The current iteration direction (1=up or -1=down). Up moves from the "off" color to the "on" color.

Constructor Detail

FlashForeground

public FlashForeground(java.awt.Component aComp,
               java.awt.Color aOnColor,
               java.awt.Color aOffColor,
               int aMSDelay)

Create a FlashForeground instance, associated with a specific component. Then the instance is notified that it should "flash" it will begin changing the foreground color between the "On" and "Off" colors. When the instance is notified that it should stop, the foreground color is changed to the "Off" color

Parameters:

aComp - The component whose foreground color is controlled by this instance

aOnColor - The color used to indicate some activity is running.

aOffColor - The default foreground color of the component.

aMSDelay - The number of milliseconds between color changes. Note that the colors change by gradation, so this number should be small.

Method Detail

nextColor

private java.awt.Color nextColor()

Calculate the next color to be used for the foreground. The algorithm is pretty simple, just change the RGB values between the "On" and "Off" colors, incrementing based on the widest color descrepency.

Returns:

The Color to be used for the foreground

computeChange

private void computeChange()

Compute the RGB values for the "On" and "Off" colors. Then determine the distance (numerically) between them.

run

public void run()

Oscillate the component colors until an interrupt is received.

Specified by:

run in interface java.lang.Runnable