Heading

Heading.class And PhotoOp.class User Documentation

This document contains a short description of the Heading.class and PhotoOp.class Java applets which may be viewed and downloaded from http://members.aol.com/jmphotoop.

Disclaimer:

Heading.class AND PhotoOp.class ARE SUPPLIED AS IS. THE AUTHOR DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR ANY PURPOSE. THE AUTHOR ASSUMES NO LIABILITY FOR DAMAGES, DIRECT OR CONSEQUENTIAL, WHICH MAY RESULT FROM THE USE OF Heading.class or PhotoOp.class.

Heading.class

The following is an example of the minimum HTML required to specify a Heading applet :

This specifies a dynamic heading of 160x14 pixels with text of "This is a default heading." The browser expects the Heading.class file to be in the same directory as the current page. If the Heading.class file is in another directory or even at a different url, then specify this in the codebase parameter. For instance to specify that the Heading.class be retrieved from my page:

The following variable parameters determine the optional behavior of the Heading.class applet. (The default values are parenthesized):

message - a text string enclosed in quotation marks which determines the content of the heading.

font - (TimesRoman), Hevetica, or Courier.

size - (14) points. If the message at the requested point size is wider than the applet width, the point size will be scaled down.

style - (plain), bold, italic.

speed - 0, 1, (2), … - a measure of the speed of color change across the heading. Zero is fastest.

halign - (left), center, right. Horizontal text alignment.

valign - (bottom), center, top. Vertical text alignment.

linktourl - If this parameter is specified, then this heading is a link and will be underlined. This is the url to which the browser will link if clicked.

linktotarget - If linktourl is specified then this is the frame name (or _top) targeted to contain the new page.

background - The background color of the applet - white, (lightGray), darkGray, gray, black, red, pink, orange, yellow, green, magenta, cyan, blue; random yields one of the previous thirteen. If this field contains ".gif" or ".jpg" then it is assumed to be the name of an image file.

The following is an example of the HTML required to fully specify the default Heading applet and is equivalent to the three line specification above:

PhotoOp.class

The following is an example of the minimum HTML required to specify a PhotoOp applet :

This specifies an 80x80 pixel scrolling collage of 8 images selected from the imagelist file The browser will expect the PhotoOp.class file, as well as the imagelist file and the console.gif file (which is a monitor image and is scaled to the height and width of the applet), to be in the same directory as the current page. If these files are in another directory or even at a different url, then specify this in the codebase parameter. For instance to specify that these files be retrieved from my page:

The following variable parameters determine the optional behavior of the PhotoOp.class applet. (The default values are parenthesized):

mode - (release) or debug. In debug mode the image file names in imagelist are pre-verified for existence.

imagelist - (imagelist) or another file name relative to the applet codebase directory. This is an ascii file in NotePad or Edit format that contains the names of up to 30 image files (.gif or .jpg) followed by an optional semi-colon and a textual description. If this file contains more than eight files, then eight files are selected at random from the list for display.

message1 - (null). When entry is scroll, this text is displayed between the console image and the other images. In the example message1 is "+ PhotoOp +."

message2 - (null). The text displayed to the right of the console. In the example message2 is "Welcome To The PhotoOp Page!"

font - (TimesRoman), Hevetica, or Courier.

size - (14) points. If the message2 + console at the requested point size is wider than the applet width, the point size will be scaled down.

style - (plain), bold, italic.

speed - 0, 1, (2), … - a measure of the speed of color change across the heading. Zero is fastest.

presentation - (scroll), slide, or both. In the default presentation mode a collage of the images is scrolled across the console screen in random directions at random speeds. In the slide presentation mode the images are displayed one at a time. In the both mode the presentation is alternated between the two.

entry - (noscroll) or scroll. In noscroll mode the applet starts with console and message2 centered inside the applet. In scroll mode the applet starts with the console, images, and text scrolling into the applet from the right.

slideorder - (sequential) or random. For slide presentation this determines the slide order.

slidedelay - (5) seconds. For slide presentation this determines the length of time each image is displayed.

The following is an example of the HTML required to fully specify the default PhotoOp applet and is equivalent to the two line specification above: