Package eu.simuline.util

Class GifResource

java.lang.Object

eu.simuline.util.GifResource

Direct Known Subclasses:

Close, ClosePressed, Collapsed, CollapsedRtl, Computer, Delete, Directory, Directory, Directory, Directory, Error, ExecuteProject, Expanded, File, File, File, File, Floppy, Hammer, HardDrive, HomeFolder, Iconify, IconifyPressed, Inform, Magnify, Maximize, MaximizePressed, Menu, Minimize, MinimizePressed, New, NewFolder, Open, Open, PaletteClose, PaletteClosePressed, Question, RotCCDown, RotCCLeft, Stop, UpFolder, Warn, Warn

public abstract class GifResource
extends Object

Provides a single method only, getIcon(Class), which returns the icon associated with the given class. The class must be a subclass of GifResource as is Open. That class is also an example for using GifResources: Just derive a class from GifResource and put it into a package (org.javalobby.icons16x16 in this case) pointing to the according gif-image which can be found in this case in src/main/resources/org/javalobby/icons16x16/Open.gif. Created: Sun Jun 4 20:50:12 2006

Version:

1.0

Author:

Ernst Reissner

Field Summary

Fields

Modifier and Type	Field	Description
private static String	CLASS	target/classes/: the directory of the classfiles within the simuline-developing environment. **** bad: path is hardcoded ****
private static String	CLASS_END	The ending of a java class file.
private static String	GIF_END	The ending of a gif file.
private static Map<Class<?>,ImageIcon>	GIFS	A cache for gif-files represented by GifResources.
private static String	RESOURCE	src/main/resource/: the directory of the resources within simuline-developing environment. **** bad: path is hardcoded ****
private static String	URL_SEP	The separator in urls.

Constructor Summary

Constructors

Constructor	Description
GifResource()

Method Summary

Modifier and Type	Method	Description
static ImageIcon	getIcon(Class<? extends GifResource> res)	Converts a GifResource class into the corresponding icon.
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Field Detail

URL_SEP

private static final String URL_SEP

The separator in urls. Note that this is unified unlike file separators which depend on the operating system.

See Also:

Constant Field Values

CLASS_END

private static final String CLASS_END

The ending of a java class file.

See Also:

Constant Field Values

GIF_END

private static final String GIF_END

The ending of a gif file.

See Also:

Constant Field Values

CLASS

private static final String CLASS

target/classes/: the directory of the classfiles within the simuline-developing environment. **** bad: path is hardcoded ****

See Also:

Constant Field Values

RESOURCE

private static final String RESOURCE

src/main/resource/: the directory of the resources within simuline-developing environment. **** bad: path is hardcoded ****

See Also:

Constant Field Values

GIFS

private static final Map<Class<?>,ImageIcon> GIFS

A cache for gif-files represented by GifResources.

Constructor Detail

GifResource

public GifResource()

Method Detail

getIcon

public static ImageIcon getIcon(Class<? extends GifResource> res)

Converts a GifResource class into the corresponding icon. This is done in the following steps: If the image is cached in GIFS, take this one. Else load it into GIFSas described below before taking it from GIFS.

Loading an image consists in loading the class-file associated with the image, determining the according gif-file and creating the according ImageIcon.

Parameters:

res - a subclass of GifResource.

Returns:

the icon determined by the given class.

CAUTION: Note that an icon is returned even if there is no according gif-image. This image can be identified by width -1 which is an undocumented property.

main

public static final void main(String[] args)