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<html><head><title>Source files for the ImageMap applet.</title></head><body><h2>Java source code for the ImageMap applets</h2><hr>The following source files are used to make the many active areas in thetwo ImageMap examples. To use the ImageMap, you will need the ImageMap,ImageMapArea, and HighlightFilter classes plus whatever specific Areaclasses that you plan to refer to in your parameters.<h4>Required classes</h4><dl><dt><a href=ImageMap.java>ImageMap.java</a><dd>ImageMap is the base class for the applet itself. It is required.<dt><a href=ImageMapArea.java>ImageMapArea.java</a><dd>ImageMapArea is the base superclass for the classes that implementthe individual active areas for the ImageMap class. It is required.<dt><a href=HighlightFilter.java>HighlightFilter.java</a><dd>HighlightFilter is the primary image filter that produces the lightand dark shading used by many of the individual active area classes. Itis required.<dt><a href=HighlightArea.java>HighlightArea.java</a><dd>HighlightArea simply highlights the specified rectangle by a specifiedpercentage brighter or darker when the mouse enters the area. It is required.<dt><a href=LinkArea.java>LinkArea.java</a><dd>LinkArea goes to a specified URL when the user clicks in it. It isrequired.</dl><h4>Common utility classes</h4><dl><dt><a href=ButtonFilter.java>ButtonFilter.java</a><dd>ButtonFilter implements a generic 3D button shaped image highlight.It is needed only if you use one of the area classes below that requires it.<dt><a href=RoundButtonFilter.java>RoundButtonFilter.java</a><dd>RoundButtonFilter implements a round variant of the ButtonFilter.It is needed only if you use one of the area classes below that requires it.</dl><h4>Specific ImageMap active area classes</h4><dl><dt><a href=HighlightArea.java>HighlightArea.java</a><dd>HighlightArea simply highlights the specified rectangle by a specifiedpercentage brighter or darker when the mouse enters the area.<dt><a href=LinkArea.java>LinkArea.java</a><dd>LinkArea goes to a specified URL when the user clicks in it.<dt><a href=NameArea.java>NameArea.java</a><dd>NameArea shows a specified string in the status area of the browserwhen the mouse enters the specified rectangular area.<dt><a href=SoundArea.java>SoundArea.java</a><dd>SoundArea plays a specified sound whenever the mouse enters thespecified rectangular area (unless it is less than 1.5 seconds sincethe mouse last left that area).<dt><a href=DelayedSoundArea.java>DelayedSoundArea.java</a><dd>DelayedSoundArea produces a delayed sound at some specified time afterthe mouse enters a subarea of the ImageMap.<dt><a href=HrefButtonArea.java>HrefButtonArea.java</a><dd>HrefButtonArea filters the image to produce a square 3D button shapewhich the user can click to visit a specified URL. This class requiresthe <a href=ButtonFilter.java>ButtonFilter</a> class mentioned above.<dt><a href=RoundHrefButtonArea.java>RoundHrefButtonArea.java</a><dd>RoundHrefButtonArea filters the image to produce a round 3D buttonshape which the user can click to visit a specified URL. This classrequires the <a href=RoundButtonFilter.java>RoundButtonFilter</a> and<a href=ButtonFilter.java>ButtonFilter</a> classes mentioned above.<dt><a href=TickerArea.java>TickerArea.java</a><dd>TickerArea scrolls a string from right to left across a specifiedarea of the imagemap.<dt><a href=AniArea.java>AniArea.java</a><dd>AniArea animates an imageloop over a section of the base image.<dt><a href=ClickArea.java>ClickArea.java</a><dd>ClickArea helps in constructing active image areas by printing thelocation of the mouse clicks and rectangle drags in the status area ofthe browser.</dl><hr></body></html>⌨️ 快捷键说明
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