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1992-11-11
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SHORT: requesters - obligatory for programmers
This is obligatory stuff for programmers !!! Save yourself many hours using
these POWERFUL and SYSTEM CONFORMANT requesters in your programs.
Users can replace req.library, arp.library and asl.library's requesters by
these using an enclosed utility called RTPatch.
-Ives
Excerpt from the enclosed readme file:
**********************************
reqtools.library
The requester toolkit.
Release 2.0
(c) 1991/1992 Nico Franτois
**********************************
1. Introduction
===============
reqtools.library is a standard Amiga shared, runtime library. The purpose
of ReqTools is to make it a lot quicker and easier to build standard requesters
into your programs. ReqTools is designed with Commodore's style guidelines in
mind, all requesters have the look-and-feel of AmigaDOS Release 2.
If you use ReqTools in your programs you do not have to worry about
requesters too much. You'll have a lot more time to concentrate on the
really important stuff your program does.
The library has been inspired by req.library (by Colin Fox & Bruce Dawson)
and Commodore's own asl.library. You will find it shares a lot of the
features with these two libraries, while it has some additional ones as well.
While asl.library was great in look-and-feel I felt it lacked quite a bit in
the power department. This power _is_ mostly available in req.library, but
this doesn't fit in too well with AmigaDOS Release 2. So the idea for a new
requester library was born.
I tried to make all requesters in ReqTools very powerful, easy to use and
with a very nice new-look 3D interface. Efficiency was also considered very
important. The 2.0 version of the library is about 34K large. I'm sure you
will agree this is not too much considering what ReqTools offers.
ReqTools features the following requesters: a query requester, a string
requester, a number requester, a file requester, a font requester, a palette
requester and new in release 2.0 of ReqTools a volume requester and a screen
mode requester.
2. Features
===========
The requesters have following features (features marked with *NEW* are new
features for release 2.0, version 38 of ReqTools):
All requesters:
o have a pixel-perfect Workbench 2.0 3D look, also on Kickstart 1.3.
*NEW* o Completely localized! If you are using Workbench 2.1 or higher the
text in ReqTools requesters will appear in the language of your
Workbench (if the catalog for this language is available).
o adjust to interlaced screens and to the screen's font (rtEZRequest,
rtGetLong, rtGetString) or to any fixed-width font if the screen's
font is proportional (rtPaletteRequest/rtFileRequest/rtFontRequest).
*NEW* Requesters can also use any suitable font you specify.
o can appear under the mouse pointer, centered on the
screen/in a window or at the top left of the screen/a window.
o can be used asynchronously.
o check pr_WindowPtr of your process is to find the screen they should
appear on (can be overridden).
o use tags for maximum future extendibility. All standard 2.0 tags are
supported (like TAG_SKIP, TAG_MORE, etc.).
o bring the screen they appear on to the front. The screen that was
in front previously will be put in front again when the requester
finishes (if it is still open).
*NEW* This behaviour can be switched off.
o will always appear in the visible portion of the screen (support of
virtual screens).
o are extensively tested using enforcer and mungwall debugging tools.
*NEW* o have the ability to lock the parent window from all user input and
give it a standard wait pointer automatically.
*NEW* o can share the IDCMP port of the parent window.
*NEW* o support a callback hook for handling IDCMP messages from a shared
IDCMP port.
*NEW* o have keyboard shortcuts for gadgets (key underlined in gadget label).
Use Right Amiga key with shortcut if a string gadget is active.
rtEZRequest, the query requester:
o easy keyboard shortcuts:
- Left Amiga V and Left Amiga B (like the standard requesters).
- Y for positive response.
- N, R, Esc for negative response.
- Return can also be used as a shortcut and can be
associated with any response. The gadget in question
will have its text printed bold.
Default response for Return is the positive response.
- buttons give visual feedback when keyboard shortcuts
are used.
- keyboard shortcuts can be canceled by pressing Shift
before releasing the key.
*NEW* - keyboard shortcuts can be defined to be any character in the
button's label. The character in question will be underlined.
o number of responses only limited by screen width.
o allows for multiple lines of text.
o text can be centered in requester (great for about requesters).
o supports the use of 'printf' formatting codes in text
and in responses.
o can be terminated by IDCMP events.
rtFileRequest, the file requester:
o similar in use and look-and-feel as Asl file requester.
o buffers directories in memory.
o files and directories can be added or removed from the buffer
by the calling program.
o can be put in save mode, disabling double-clicks and asking you if
directories that can't be found (entered manually) should be created.
o optional callback hook for verification of files before they are
added to the buffer.
o supports multiple selection of files and optionally of directories.
o when multi-select is on All, Clear and Match.. buttons are available.
All selects, and Clear unselects all files. Match.. brings up a
requester where the user can enter a pattern to select files.
o can be used as a directory requester (showing no files).
o optional pattern gadget to match files on.
o shows all devices (with volume names) and all assigns made.
o supports TABCYCLE under 2.0
o pattern matching supports _ALL_ AmigaDOS 2.0 patterns.
*NEW* o can be used as a volume requester to get a device or an assign
from the user.
*NEW* o can be resized in height to show more files.
*NEW* o Shows disk percentage used next to volume names.
*NEW* o Allows you to enter paths in the filename string gadget. If the
requester finds a path in the filename it will change the directory
to that path. So if you e.g. enter 'Devs:mountlist' in the filename
gadget the requester will read the 'Devs:' directory and set the
filename gadget to 'mountlist'. If you enter 'printers/' it will go
into the printers directory. Enter '/' to go to the parent directory.
*NEW* o Completely keyboard controlable: use up and down cursor keys to
select files or directories. Use Shift-Up and Shift-Down to jump
by one window-full.
rtFontRequest, the font requester:
o buffers all fonts in memory.
o shows sample of font you click on.
o can be also be used to select the font's style.
o supports color fonts, can change the screen's palette.
o supports scaled fonts (AmigaOS Release 2 only).
o optional callback hook for verification of fonts before they are
added to the buffer.
o supports TABCYCLE under 2.0
*NEW* o can be resized in height to show more fonts.
*NEW* o makes sure selected font is visible in listview when it comes up.
*NEW* rtScreenModeRequest, the display mode requester (Kickstart 2.0+ only!):
*NEW* o all modes in the DisplayInfo database can be displayed.
*NEW* o displays visible and nominal size.
*NEW* o user may enter prefered size or choose to get the defaults.
*NEW* o number of colors selectable.
*NEW* o can be put up with the attributes from a given screen.
*NEW* o optional callback hook for examining a display mode before it is
added to the requester.
*NEW* o can be resized in height to show more modes.
*NEW* o makes sure selected mode is visible in listview when it comes up.
rtPaletteRequest, the palette requester:
o features Copy, Swap and Spread functions.
o current values of red, green and blue are displayed.
o returns the selected color.
rtGetLong, the long integer requester:
o width of requester can be set by caller.
o a minimum and maximum can be supplied and will be displayed
in the requester.
o a value to show up when the requester appears can be supplied.
*NEW* o can display buttons with several possible responses.
*NEW* o invisible entry is possible (useful for getting a code number).
*NEW* o patterned backfill of requester can be switched on or off.
*NEW* o some line(s) of (centered) text may be displayed above the entry
gadget to give the user some extra information.
rtGetString, the string requester:
o width of requester can be set by caller.
o a string to show up when the requester appears can be supplied.
*NEW* o can display buttons with several possible responses.
*NEW* o invisible entry is possible (useful for getting a password).
*NEW* o patterned backfill of requester can be switched on or off.
*NEW* o some line(s) of (centered) text may be displayed above the entry
gadget to give the user some extra information.