org.dillenburg.pictureframe
Class PictureLayout

java.lang.Object
  org.dillenburg.pictureframe.PictureLayout

Direct Known Subclasses:

CenteredPictureLayout, LeftRightPictureLayout, TopBottomPictureLayout

public abstract class PictureLayout
extends java.lang.Object

Base class for all picture layout sub-classes. Renders one or more picture files using the paint(Graphics2D, Dimension) method.

Constructor Summary

PictureLayout()

Method Summary

abstract java.util.List<java.io.File>	getFiles() Get all files to be drawn by this layout.
abstract void	paint(java.awt.Graphics2D g, java.awt.Dimension screenSize) Paint the image files onto the given graphics canvas with the overall size given.
protected void	scaleAndCenterWithin(java.awt.Graphics2D g, java.awt.Rectangle r, java.awt.image.BufferedImage image) Scale and center an image within a rectangle.

Methods inherited from class java.lang.Object

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

Constructor Detail

PictureLayout

public PictureLayout()

Method Detail

paint

public abstract void paint(java.awt.Graphics2D g,
                           java.awt.Dimension screenSize)
                    throws java.io.IOException

Paint the image files onto the given graphics canvas with the overall size given.

Parameters:

g - graphics canvas

screenSize - size of drawing area

Throws:

java.io.IOException - on error loading image files

scaleAndCenterWithin

protected void scaleAndCenterWithin(java.awt.Graphics2D g,
                                    java.awt.Rectangle r,
                                    java.awt.image.BufferedImage image)

Scale and center an image within a rectangle.

Parameters:

g - graphics canvas

r - rectangel to center within

image - image to draw

getFiles

public abstract java.util.List<java.io.File> getFiles()

Get all files to be drawn by this layout.

Returns:

list of files to be drawn using the given layout