english:
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=> This small program is intended to be used from your Startup-Sequence or
User-Startup. It will randomly select pictures from a given list and write
its names into the file ENV:sys/WBPattern.prefs. As ENV:sys is watched
by the IPrefs task for any changes going on there (notification), this
behaviour will force IPrefs to update the display and use the new pictures
as backgrounds.
=> RandomWBPatt may be used ONCE per boot-up to have another background
every time you restart your system, or you may keep it running in the
background with the TIMER option to change the background pictures every
given period of time.
=> See Docs/RandomWBPatt.doc for full installation/usage details.
Find all my Software on Aminet:
-------------------------------
http://aminet.net/search?readme=rhosigma&sort=path
deutsch:
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=> Dieses kleine Programm ist dafür gedacht, von der Startup-Sequence oder
der User-Startup aus benutzt zu werden. Es wählt zufällig Bilder aus einer
bereitgestellten Liste aus und schreibt deren Namen in die Datei
ENV:sys/WBPattern.prefs. Da ENV:sys vom IPrefs Task auf jedwede Veränderung
überwacht wird (Benachrichtigung), zwingt dieses Vorgehen IPrefs dazu, die
Anzeige zu aktualisieren und die neuen Bilder als Hintergründe anzuzeigen.
=> RandomWBPatt kann einmalig (ONCE) pro Bootvorgang benutzt werden, um bei
jedem Systemstart einen anderen Hintergrund zu haben, oder es kann im
Hintergrund weiterlaufen mit der TIMER Option, um die Hintergründe jeweils
in dem angegebenen Zeitabstand zu wechseln.
=> Siehe Docs/RandomWBPatt.dok für Installations- und Benutzungshinweise.
Finde alle meine Software im Aminet:
------------------------------------
http://aminet.net/search?readme=rhosigma&sort=path
===========================================================================
History:
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v3.089 (30.03.02)
- First public release
v3.222 (10.08.02)
- Random generator reworked: As more pictures from the given list
were already shown, as longer it takes for the random generator to
get a hit on an still unshown picture, finally ending up in an
endless loop causing heavy disk activity.
Now after a maximum of 100 random tries, the generator is switched
to sequencial mode to find the few remaining unshown pictures.
v4.231 (19.08.02)
- Major change for this Version is the splitting of the old list file
'SYS:Prefs/Presets/RndPattFiles' to the files 'RndPattFiles-WB' and
'RndPattFiles-WIN' which hold the listings for the appropriate
WBPattern-Settings 'Workbench' and 'Windows'
- Minor changes: some more enhancements on random generator code and
CTRL-C/F handling.
v4.539 (23.06.03)
- added CTRL-D/E handling for WBONLY/WINONLY forced reloads,
CTRL-F is still operating by using the given commandline options
- recompiled because of major changes in »extra.library«, see History
of util/libs/ExtraLib.lha for more info
v4.621 (13.09.03)
- fixed some problems with OS3.5/3.9 quality settings, which were
always reset to default values, now this is only the case, if
'RandomWBPatt' has to change the type of background, but then it
must use defaults because of compatiblity reasons to OS3.0/3.1
- in general RandomWBPatt now keeps all settings made with the
WBPattern preferences editor
v5.000 (31.03.04)
- in certain cases, especially when used for single pattern change
(ONLY-Options and/or CTRL-D/CTRL-E), the 'wbpattern.prefs' file in
ENV: was truncated because of odd filename length of the picture.
-- fixed now --
v5.282 (08.10.04)
- if ONLY-Option is used, then you now only must provide either the
RndPattFiles-WB or -WIN file according to your ONLY-Option, older
versions always did expect both files or the program was aborted by
runtime error 53 (File not found)
- if no RndPattFiles file is found, then the program simply does
nothing, older versions did abort with runtime error 53 too
v5.300 (28.11.05)
- added some workarounds for OS-Functions, so I could loosen the
OS requirements to OS 2.04, was easy to do, because only two OS3.0
functions were used :-)
- also updated the Version/Architecture stuff of this readme to fit
the requirements of the new Aminet
v5.400 (03.03.07)
- random generator upper bound fixed -> last file in list was unused
- if a break was received when clock was already down to next pattern
change, then the pattern was changed once more before exiting
-- fixed now -- (break means break now, immediately)
- added better error handling, especially for missing libs or wrong
versions of it, all unexpected errors will reported and program
will exit in a clean way
v5.410 (23.06.07)
- random generator reworked, all operations done in RAM now, cause
disk operations take too long with large image lists >500 files
especially when most files are already done and the generator is
trying to get a hit on one of the few remaining files
(see also changes for v3.222)
v5.411 (03.07.11) - [not published]
- *.done files will also list last shown date and time for every
picture, this was simply something to satisfy myself, because i
have >3000 pictures in list and wanna know how long ago i saw a
particular picture
v5.412 (10.07.11) - [not published]
- in case if both, WB and WIN pattern change is active, a restart
of the WIN list has (as side effect) skipped one WB picture,
-- fixed now --
v6.000 (22.07.11)
- cleaner way implemented to obtain the window's RastPort of a running
StopMenu task, old method simply did check the window positions and
dimensions, which restricted the usage to a fixed screen size, now
StopMenu's window is identified by Window->UserPort->SigTask, so
it should be usable on any screen size
- as any screen size is supported now by the StopMenu hack (see Docs),
output must maybe limited, for full info (pic names & countdown) you
must have at least 710 pixels screen width, <710 but >640 will only
show the countdown clock, <640 does no output anymore
- no need to install custom *.info files for StopMenu hack anymore,
required images are build-in now
- to prevent trashing of the StopMenu display, long filenames are
shortcutted if required, first the file extension is removed and if
this is not enough, then one by another letter is omitted at the end
of the name
- finally the StopMenu hack can be disabled for those who don't like
such techniques or simply don't need the info display, just omit
the PEN option to disable it
- RandomWBPatt will NOT affect any OS3.5/3.9 quality settings anymore,
even if it has to change the type from pattern to picture
(see also changes for v4.621)
v6.100 (12.05.15)
- cleaned up and final release
- very subtle arithmetic overflow fixed in find random hit loop, which
caused the program to hang on the last picture in list, if certain
preconditions were fulfilled
- new version of extra.library included (Aminet: util/libs/ExtraLib.lha)
- it works for me and I see no need for any more improvements, also
I've never received any comments or suggestions, by this means...
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*** PROJECT DONE & CLOSED ***
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