de.enough.polish.ui.backgrounds
Class PulsatingCirclesBackground

java.lang.Object
  de.enough.polish.ui.Background
      de.enough.polish.ui.backgrounds.PulsatingCirclesBackground

All Implemented Interfaces:

Serializable

public class PulsatingCirclesBackground
extends Background

Paints an animated background filled with several ever-growing circles.

Following CSS-attributes are supported:

• type: the type of the background, needs to be "pulsating-circles".
• first-color: the first color of a circle.
• second-color: the second color of a circle.
• min-diameter: the minimum diameter of a circle.
• max-diameter: the minimum diameter of a circle.
• circles-number: the number of the circles.
• step: the number of pixels each circle should grow in every animation.

Copyright Enough Software 2004 - 2008

 history
        17-Jul-2004 - rob creation
 

Author:

Robert Virkus, j2mepolish@enough.de

Field Summary

Fields inherited from class de.enough.polish.ui.Background

borderWidth

Constructor Summary

PulsatingCirclesBackground(int firstColor, int secondColor, int minDiameter, int maxDiameter, int numberOfCircles, int step)
Creates a new pulsating-circle background.

Method Summary

void	animate(Screen screen, Item parent, long currentTime, ClippingRegion repaintRegion) Animates this background.
void	paint(int x, int y, int width, int height, javax.microedition.lcdui.Graphics g) Renders the background to the screen.
void	showNotify() Informs the background that it is being shown shortly or that it is now applied to a new visible item.

Methods inherited from class de.enough.polish.ui.Background

addRelativeToBackgroundRegion, animate, hideNotify, releaseResources

Methods inherited from class java.lang.Object

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

Constructor Detail

PulsatingCirclesBackground

public PulsatingCirclesBackground(int firstColor,
                                  int secondColor,
                                  int minDiameter,
                                  int maxDiameter,
                                  int numberOfCircles,
                                  int step)

Creates a new pulsating-circle background.

Parameters:

firstColor - the first color of circles

secondColor - the second color of circles

minDiameter - the minimum diameter

maxDiameter - the maximum diameter

numberOfCircles - the number of circles

step - the number of pixels which should be added in each round to each circle

Method Detail

paint

public void paint(int x,
                  int y,
                  int width,
                  int height,
                  javax.microedition.lcdui.Graphics g)

Renders the background to the screen.

Specified by:

paint in class Background

Parameters:

x - the x position of the background

y - the y position of the background

width - the width of the background

height - the height of the background

g - the Graphics instance for rendering this background

animate

public void animate(Screen screen,
                    Item parent,
                    long currentTime,
                    ClippingRegion repaintRegion)

Description copied from class: Background

Animates this background. Subclasses can override this method to create animations. The default implementation calls the animate() method and adds the full content area to the repaint region.

Overrides:

animate in class Background

Parameters:

screen - the parent screen

parent - the parent item, can be null when the background belongs to a screen

currentTime - the current time in milliseconds

repaintRegion - the repaint area that needs to be updated when this item is animated

See Also:

Item.addRelativeToContentRegion(ClippingRegion, int, int, int, int)

showNotify

public void showNotify()

Description copied from class: Background

Informs the background that it is being shown shortly or that it is now applied to a new visible item. The default implementation is empty.

Overrides:

showNotify in class Background