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CLIP LIBRARY for the Apple IIgs Revised - Oct. 7, 1987
Written by Joseph Ontiveros
18603 Highway1, Suite 101
Fort Bragg, CA 95437
(CompuServe: 73250,341)
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Introduction
What prompted me to write this program is the need to display graphic designs
and information concerning new college courses (especially computer courses)
that are being offered at the college where I teach. My plan is to have the
Apple IIGS with ONLY the mouse and no keyboard connected and allow
curious/potential students to select subjects by using the mouse to press
buttons with appropriate titles on the screen. By pressing one of several
buttons they can advance (or go back) through the graphic displays (but can
never exit the demonstration).
THE PROGRAM
It's fairly simple (though it taught me a lot of new stuff about the GS toolset.
The program has these options:
File Commands
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1. NEW : Creates a new CLIP LIBRARY FILE (file type is $08). You can
set the number of records in the file from 0 to 99. A size of 10
records will take approx 164K disk storage.
2. OPEN: Opens an existing library file (file type $08 - a graphic file).
Note that only 1 clip library file can be open at a time. Also, I
have noticed that the NEW Finder displays this file type with an
icon similar to the MacPaint graphic file icon.
Edit Commands
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3. EDIT: This option allows you to view your clip records and to also
define/edit up to 7 buttons associated with the clip.
When this option is chosen, the record number, the graphic clip, some
control buttons, and seven button-fillin boxes with branching values
are displayed.
Here is what the buttons do:
DONE: exits the EDIT option, you have access to the menu bar again.
Does NOT save any changes made to the record (use SAVE).
LOAD: Loads to the screen what ever record is in the record# box.
This can range from 0 to the number of clip records you
created for this file (the total clip records is displayed
on the bottom left of the graphic clip.
SAVE: Stores to what ever record is in the record# box the
button titles and branching values currently displayed.
Below the buttons described above there are 7 fill-in boxes for
button titles you can define. If you enter a title in any of these
boxes when in LIBRARY MODE buttons a button with that title will appear.
To the right of the button title boxes are branching value boxes. Enter
in these boxes the record number to branch to when the user presses
that button (during LIBRARY MODE). Placing a -1 in any button will
cause the library mode to halt, giving you/user access to the menu bar.
Make sure that unused button title boxes are 'empty'.
4. EDIT PICTURE: This option will allow you to load a standard graphic files
like Paintworks Plus screen file, or a Vision-Plus 320X200 graphic file
(must be filetype $C1). Once you load this picture, use the scroll-bars
to adjust up/down/left/right until you have the portion of the picture
you want. The resulting graphic "CLIP" will be 196 pixels horizontal, 165
pixels vertical. When ready, enter into the fill-in the record number box
the record to store the clip. Press the STORE button. Press DONE
to get back to the menu-bar.
MODES
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5. LIBRARY MODE:
When you select this option the program will no longer accept commands
from the menu-bar (unless there is a -1 value for a button in the file).
Record number 0 appears on the screen with the CLIP you stored, and with
the buttons you named. Pressing a button will branch you to another record.
(I would put some RESTART buttons with a value of 0 in key places so the user
can alway get back to the beginning).
I hope you can find some other uses for this program, real-estate,
restaurant menus, mapping, educational...etc.
You should be able to create a RAM disk to store small CLIP LIB files
and the program. One advantage to this is faster loading, plus if
you are using it for a demonstration there is no disk to be stolen.
Enjoy!