187 lines
6.7 KiB
Text
187 lines
6.7 KiB
Text
wmcalc
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-------------------------------------------------------------
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Code is loosely based on wmppp, wmload, wmtime, wmcp, and asbutton
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Original Author: Edward H. Flora <ehflora@access1.net>
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Current Maintainer: Window Maker Developers Team
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<wmaker-dev@lists.windowmaker.org>
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DESCRIPTION:
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------------
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wmcalc is a program designed to act as a simple four-function
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calculator. It is different from other calculator programs, however
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in that it is designed to take up very little desktop space. As such,
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it can be left running on the desktop at all times. It is intended to
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placed in the WindowMaker dock, or in Wharf under Afterstep, though it
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should run as well under any window manager.
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LICENSING:
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----------
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This program is released under the GPL license. A copy (in case you
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don't already have hundreds of them floating around) can be found in
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this distribution in the file COPYING.
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CONTRIBUTORS:
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-------------
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Co-Developers:
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Rick Stuart <stuart@xnet.com>
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Philippe Trbich <philippe.trbich@free.fr>
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Original Web Page Designs:
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Jon Bruno <bruno@ksu.edu>
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Thanks to:
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Ben Cohen <buddog@aztec.asu.edu>
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original author of wmcp (et al.)
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The contributors listed above are not involved with the development of
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wmcalc. I'm listing them here as thanks for helping out, catching
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bugs in the code, etc.
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INSTALLATION:
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-------------
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Compile it:
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make clean; make
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As root, install it:
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make install
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Optionally, copy the config file:
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cp wmcalc.conf ~/.wmcalc
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Run it:
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wmcalc &
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Grab the appicon and move it to the dock.
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Change the settings to start with Windowmaker
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Afterstep Wharf 1.6.??: (I don't use Afterstep anymore, so...)
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*Wharf wmcalc -Swallow "wmcalc" wmcalc &
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***Note***:
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The appicon only has a two pixel border where you can grab
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and move it. It is easiest to grab along the bottom edge.
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If make doesn't work, you may need to fiddle with the settings in
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the Makefile.
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Tested on: (Well, it runs, I don't know if 'Tested' is quite right...)
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WindowMaker-0.62.1
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X Clients: Red Hat 6.0, Kernel 2.2.8
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USAGE:
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------
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usage: wmcalc [-g geometry] [-d dpy] [-v] [-f configfilename] [-h]
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-g <geometry> Window Geometry - ie: 64x64+10+10
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-d <display> Display - ie: 127.0.0.1:0.0
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-v Verbose Mode.
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-h Help. This message.
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-f <filename> Full path to configuration file to use.
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Buttons are defined as:
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____________________
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| x00 | where: x = 1 for Left Mouse Button
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| 0 1 2 3 4 5 6 7 8 9| x = 2 for Middle Mouse Button
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|--------------------| x = 3 for Right Mouse Button
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|x01 x02 x03 x04 x05 |
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|x06 x07 x08 x09 x10 | Note: the numbers 0..9 are the indicators
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|x11 x12 x13 x14 x15 | for memory cells 0..9 respectively
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|x16 x17 x18 x19 x20 |
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--------------------
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Button Functions:
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100 Reinitialize the calculator, and both Registers
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(Clear All)
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200 Clear all the memory registers (0..10)
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300 Clear the current number being entered only
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x11 Start a program defined by CalcStart variable in config file
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1yy Perform function shown on button
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2yy Recall number from memory location [0-9] to display
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for calculation
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if yy = 2,3,4, 7,8,9, 12, 13, 14, 17
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otherwise, can run a user-defined function (not implemented)
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3yy Store Displayed number in memory location [0-9]
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if yy = 2,3,4, 7,8,9, 12,13,14, 17
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otherwise, can run a user-defined function (not implemented)
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1xx Hopefully the other functions are obvious from their
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button graphics.
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NOTES:
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------
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I am sure that there are better ways to do some of the things that are
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done in wmcalc. In fact, wmcalc is basically a series of hacks, but appears
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to be stable...
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The configuration file (.wmcalc) is written by wmcalc whenever the user
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requests to store a number to memory. As a part of this process, a file
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is written to /tmp. If /tmp is not accessible, it tries in the user's home
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directory, as defined by the environment variable HOME. This file is
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erased as soon as it is written over the main configuration file.
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Changes made to the configuration file (other than memory stores) will not
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take effect until the next time wmcalc is started.
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Although one can only "Clear" all unlocked memory locations, one may clear the
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display and then "store" a '0' in the memory location, providing the
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ability to clear individual cells.
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The fonts are stored in charmap.xpm. This file may be edited to
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change colors or fonts, but the app must be recompiled for the changes
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to take effect. The buttons are located in calcbuttons.xpm. This
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file may be edited, though the borders should stay where they are
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unless you want to change the button regions that are hard coded.
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The background border is defined in backdrop.xpm.
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"C code. C code run. Run, code, run.
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PLEASE!?!?!?!?!?!?"
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TODO:
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-----
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These are partially a dream list. I don't know when they'll get done,
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as I'm pretty busy at work. Anyone want to tackle these??
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* Re-implement the register/display design to allow full double precision.
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* Add keyboard support (I've tried to do this, with no luck. Probably a
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'focus' problem.
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* Add button press animation.
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* Add a log file, either as a paper tape implementation, or a file
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that one can intentionally write data to. (This could grow to a pipe to
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plotting programs, etc, though this is a bit extreme...)
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RPN:
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I have no intention at this time to add in an RPN format, as I
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personally do not like it. It should be noted that I have NOT used it
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extensively, and I've heard that I would like it. But, until then...
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BUGS:
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-----
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Remember, they're just undocumented FEATURES!!!
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* The display can lose the last digit of a three character exponential
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notation number.
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* Due to an implementation fault, at every step of calculations, precision
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is lost, as the number is only as accurate at that displayed.
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* Order of operations: 1 + 2 * 5 = 15, not 11, as it should.
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* Changing sign when the display is blank results in "-0". Further entry
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yields "-05...," but this does not affect calculations.
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* Changes to the configuration file do not take effect until wmcalc is
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restarted. (Note that file is written whenever a "store memory
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location" is requested)
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Probably many more. Send comments (preferably with fixes) to
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<ehflora@access1.net>
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I will happily include your name in the documentation for the program
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if you send me a bug report and the correction. This can be in the
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form of a patch file, or ASCII text to exchange, or an equivalent.
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Note, this program is written in C. Not C++. I'm not a computer
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science person, I don't do objects. Therefore, bug fixes that convert
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this to C++ don't count, since I would no longer be able to support
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the program. Of course, you can modify the code and release a new
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application.
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Thanks, and Good Luck.
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