ASOFT_PRESENTER
~~~~~~~~~~~~~~~
Background:
I was inspired to write this when a co-worked used an iPad for a
talk. The iPad is as powerful as early Cray supercomputers;
why waste that much processing power on a slide show?
In present mode:
Q quits
space or -> goes to next slide
<- goes to previous slide
How to Create Presentations:
./asoft_presenter DIRECTORY
Directory must contain "info" and "footer" files
In general empty lines (just linefeed) and lines starting with #
are ignored
info: has the slide info. First key is
TITLE
followed by title
AUTHOR
followed by author
EMAIL
followed by e-mail
SLIDES
followed by a list of files to be parsed in-order with slide info
END_SLIDES
footer: has info on footer
first line: text to be left justified
second line: text to be centered
slide files:
starting a line with %c% will center the following text
First line describes slide type
40COL - 40 column text
80COL - 80 column text (not implemented)
HGR - HGR with 4-lines of text
HGR2 - HGR with no text (note, uses page 1)
HGR_PLOT - plots data on HGR display
40COL - text as follows is printed to 40 column text display
HGR - first line indicates file to BLOAD.
following lines are text at bottom
HGR2 - first line indicated file to BLOAD
actually is page1 (HGR) with soft-switch thrown
this is because presentations get so large
I load them high by default into HGR page2
HGR_PLOT - loads a shape table to $1000 and uses it for
labeling axes
first line x and y size of data
next line how many tick marks on x and y axis
START
followed by x y NUM where NUM is number to
write at x y
STOP
number of plots
for each plot,
START
color of plot
list of data points (x y)
STOP
Then list of text to put in bottom 4 lines
NOTES while developing:
ARGH I've been programming in C too long can't handle things that start
numbering with "1" rather than "0".
AppleSoft BASIC was my first programming language; it's amazing how
I can still program it all these years later.
On-line documentation that can be found for shape table construction
is misleading at best. The original BASIC manual is best for this.
The BASIC code generated is really wasteful, especially for the
extravagant REM statements.
I am most proud of the code that puts the slide number at end
of text w/o scrolling. There's probably a better way to do it.
I should probably use page-flipping to avoid flicker, but I use
so much RAM it might not be doable. Probably also would
require assembly.
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