I forgot to add to the Help file that there is also a minibuffer command to toggle it - *rpcalc-toggle.*
On Monday, May 1, 2023 at 8:31:31 PM UTC-4 Rob wrote: > For those new to trying out the plugin, I discovered that it didn't appear > to load despite adding it to my enabled plugins. What I learned is: > > 1. It's in the plugin list and I needed to select the rpcalc-toggle > option under the plugins menu or... > 2. I see now there's an rpcalc button I didn't notice before that > toggles it on and off. > > HTH > > Looking forward to using it as I prefer RPN calculators to the more > standard ones. > > Rob... > > On Saturday, April 29, 2023 at 1:42:07 PM UTC-4 tbp1...@gmail.com wrote: > >> There are times while working in Leo that I have wanted to use a >> calculator. Sometimes I keep a calculator program open, but this is not >> always ideal because the Leo window often will obscure the calculator when >> I want to look at it or use it. >> >> I have adapted the open-source *RPCalc* calculator to run in a tab in >> the Leo log frame. This calculator is a Reverse Polish Notation (RPN) >> style calculator, which IMHO is much better than the algebraic-entry >> type. It is the type of calculator that Hewlett-Packard made famous. >> >> RPCalc is written in PyQt, so it was a good candidate to use as a >> starting point. My adaptation turns it into a Leo plugin. A screenshot and >> a zip file with the files are attached to this post. It's not quite ready >> for a pull request yet, though it is completely functional. Still to do: >> add type annotations, update the Help file, come up with a better way to >> copy the results of a calculation to the clipboard, and add a setting to >> prevent automatic addition of the plugin's toggle button to the icon bar. >> There are also a few minor conveniences that aren't working right relating >> to the Help screen. >> >> To "install" it, unzip the zip file - it has the rpcalc.py program and an >> associated rpcalc directory. Now you can do one of two things: >> >> 1. Copy the file and directory into your leo/plugins directory; add a >> line "rpcalc.py" to the @*enabled-plugins* node in your >> myLeoSettings.leo outline; or >> >> 2. Copy the file and directory somewhere else, set the PYTHONPATH >> environmental variable to point there, and add a line "rpcalc" (without the >> ".py") to the @*enabled-plugins* node in your myLeoSettings.leo outline. >> >> To illustrate method 2 (on Windows; there are minor differences for >> Linux), suppose you copy the plugin into *c:\temp\leo\extras*. Then >> before starting Leo from a console, set the PYTHONPATH: >> >> set PYTHONPATH=c:\temp\leo\extras;%PYTHONPATH% >> >> You don't need to include the final ;%PYTHONPATH% if it has not been set >> already to point somewhere else. >> >> Then restart Leo. There will be a new button labeled "RPCalc" on the >> iconbar. Clicking on it will toggle the calculator tab on or off. The >> plugin works on Windows and Linux, and with either PyQt5 or PyQt6. >> >> If you are not familiar with an RPN style calculator, it works by pushing >> numbers onto a stack and performing operations between members of the >> stack. So to add 10 and 4, you key in "10" (from the keyboard or by >> clicking the number buttons), then press ENTER or click the ENT button. >> This pushes the number 10 onto the stack. Then key/button-press "4", then >> click/type a plus sign. The "plus" operation is executed between the 4 and >> the 10, leaving the result (14) in the stack bottom (the position with the >> large LCD characters). >> >> There are many sites on the Web that will tell you more about using an >> RPN calculator. RPCalc itself has a way to enter numbers in other common >> bases (eg., hex) - read the Help file to learn how. >> >> There is an auxiliary menu that will open either with a right-click in >> the calculator main window or by pressing the ESC key. These entries open >> a separate window (not in the Leo tab). One of the items opens the help >> file. When the window is the one showing the registers, then the calculator >> result can be copied to the clipboard with ALT-v. This is a little clumsy, >> and I plan to make it easier to copy the value (there is a technical oddity >> that is preventing the most obvious way from working). >> >> The calculator will automatically use your Leo theme's colors and fonts. >> >> Please test this plugin out and let us know how you like it, and if you >> would like anything changed. I won't promise to make the changes, >> depending on how hard they may be or if they seem too inconsistent with the >> way the calculator works. But I'll try! >> > -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to leo-editor+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/be2dcd79-7334-4556-bff3-f7314043d722n%40googlegroups.com.
