X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=README.md;h=4e6127abaf1582a7d8d337720bd7e5664f35234b;hb=686d4da2d2ecc203d5f8b524225a4327777825be;hp=9ffed93744fd9fb9127e5991e32e0f397583a809;hpb=9b1afdde02c30f0d4a80ba330a4bc72384093253;p=fanfix.git diff --git a/README.md b/README.md index 9ffed93..4e6127a 100644 --- a/README.md +++ b/README.md @@ -1,224 +1,201 @@ Jexer - Java Text User Interface library ======================================== -WARNING: THIS IS ALPHA CODE! PLEASE CONSIDER FILING BUGS AS YOU -ENCOUNTER THEM. +This library implements a text-based windowing system loosely +reminiscent of Borland's [Turbo +Vision](http://en.wikipedia.org/wiki/Turbo_Vision) system. It looks +like this: -This library is intended to implement a text-based windowing system -loosely reminiscient of Borland's [Turbo -Vision](http://en.wikipedia.org/wiki/Turbo_Vision) library. For those -wishing to use the actual C++ Turbo Vision library, see [Sergio -Sigala's updated version](http://tvision.sourceforge.net/) that runs -on many more platforms. +![Terminal, Image, Table](/screenshots/new_demo1.png?raw=true "Terminal, Image, Table") -Three backends are available: +Jexer works on both Xterm-like terminals and Swing, and supports +images in both Xterm and Swing. On Swing, images are true color: -* System.in/out to a command-line ECMA-48 / ANSI X3.64 type terminal - (tested on Linux + xterm). I/O is handled through terminal escape - sequences generated by the library itself: ncurses is not required - or linked to. xterm mouse tracking using UTF8 and SGR coordinates - are supported. For the demo application, this is the default - backend on non-Windows platforms. +![Swing Snake Image](/screenshots/snake_swing.png?raw=true "Swing Snake Image") -* The same command-line ECMA-48 / ANSI X3.64 type terminal as above, - but to any general InputStream/OutputStream. See the file - jexer.demos.Demo2 for an example of running the demo over a TCP - socket. +On Xterm, images are dithered to a common palette: -* Java Swing UI. This backend can be selected by setting - jexer.Swing=true. The default window size for Swing is 132x40, - which is set in jexer.session.SwingSession. For the demo - application, this is the default backend on Windows platforms. +![Xterm Snake Image](/screenshots/snake_xterm.png?raw=true "Xterm Snake Image") -The demo application showing the existing UI controls can be seen in -three ways: - * 'java -jar jexer.jar' . This will use System.in/out on - non-Windows, or Swing on Windows. - * 'java -Djexer.Swing=true -jar jexer.jar' . This will always use - Swing. +License +------- - * 'java -cp jexer.jar jexer.demos.Demo2 PORT' (where PORT is a - number to run the TCP daemon on). This will use the telnet - protocol to establish an 8-bit clean channel and be aware of - screen size changes. +Jexer is available to all under the MIT License. See the file LICENSE +for the full license text. -Additional backends can be created by subclassing -jexer.backend.Backend and passing it into the TApplication -constructor. +Obtaining Jexer +--------------- -License -------- +Jexer is available on Maven Central: -This project is licensed LGPL ("GNU Lesser General Public License", -sometimes called the "Library GPL") version 3 or greater. You may -freely use Jexer in both closed source (proprietary) and open source -applications, however any changes you make to the Jexer code must be -made available to your users. +```xml + + com.gitlab.klamonte + jexer + 0.3.2 + +``` -See the file LICENSE for the full license text, which includes both -the GPL v3 and the LGPL supplemental terms. +Binary releases are available on SourceForge: +https://sourceforge.net/projects/jexer/files/jexer/ +The Jexer source code is hosted at: https://gitlab.com/klamonte/jexer -Acknowledgements ----------------- -Jexer makes use of the Terminus TrueType font [made available -here](http://files.ax86.net/terminus-ttf/) . +Documentation +------------- +* [Java API Docs](https://jexer.sourceforge.io/apidocs/api/index.html) +* [Wiki](https://gitlab.com/klamonte/jexer/wikis/home) -Usage ------ +* [Jexer web page](https://jexer.sourceforge.io/) -Usage patterns are still being worked on, but in general the goal will -be to build applications as follows: -```Java -import jexer.*; -public class MyApplication extends TApplication { +Programming Examples +-------------------- - public MyApplication() { - super(BackendType.SWING); // Could also use BackendType.XTERM +The examples/ folder currently contains: - // Create standard menus for File and Window - addFileMenu(); - addWindowMenu(); - } + * A [prototype tiling window + manager](/examples/JexerTilingWindowManager.java) in less than 250 + lines of code. - public static void main(String [] args) { - MyApplication app = new MyApplication(); - (new Thread(app)).start(); - } -} -``` + * A much slicker [prototype tiling window + manager](/examples/JexerTilingWindowManager2.java) in less than 200 + lines of code. -See the files in jexer.demos for more detailed examples. + * A [prototype image thumbnail + viewer](/examples/JexerImageViewer.java) in less than 350 lines of + code. +jexer.demos contains official demos showing all of the existing UI +controls. The demos can be run as follows: + * 'java -jar jexer.jar' . This will use System.in/out with + Xterm-like sequences on non-Windows non-Mac platforms. On Windows + and Mac it will use a Swing JFrame. -Known Issues / Arbitrary Decisions ----------------------------------- + * 'java -Djexer.Swing=true -jar jexer.jar' . This will always use + Swing on any platform. + + * 'java -cp jexer.jar jexer.demos.Demo2 PORT' (where PORT is a + number to run the TCP daemon on). This will use the Xterm backend + on a telnet server that will update with screen size changes. -Some arbitrary design decisions had to be made when either the -obviously expected behavior did not happen or when a specification was -ambiguous. This section describes such issues. + * 'java -cp jexer.jar jexer.demos.Demo3' . This will use + System.in/out with Xterm-like sequences. One can see in the code + how to pass a different InputReader and OutputReader to + TApplication, permitting a different encoding than UTF-8. - - TTerminalWindow will hang on input from the remote if the - TApplication is exited before the TTerminalWindow's process has - closed on its own. This is due to a Java limitation/interaction - between blocking reads (which is necessary to get UTF8 translation - correct) and file streams. + * 'java -cp jexer.jar jexer.demos.Demo4' . This demonstrates hidden + windows and a custom TDesktop. - - See jexer.tterminal.ECMA48 for more specifics of terminal - emulation limitations. + * 'java -cp jexer.jar jexer.demos.Demo5' . This demonstrates two + demo applications using different fonts in the same Swing frame. - - TTerminalWindow uses cmd.exe on Windows. Output will not be seen - until enter is pressed, due to cmd.exe's use of line-oriented - input (see the ENABLE_LINE_INPUT flag for GetConsoleMode() and - SetConsoleMode()). + * 'java -cp jexer.jar jexer.demos.Demo6' . This demonstrates two + applications performing I/O across three screens: an Xterm screen + and Swing screen, monitored from a third Swing screen. - - TTerminalWindow launches 'script -fqe /dev/null' on non-Windows - platforms. This is a workaround for the C library behavior of - checking for a tty: script launches $SHELL in a pseudo-tty. This - works on Linux but might not on other Posix-y platforms. + * 'java -cp jexer.jar jexer.demos.Demo7' . This demonstrates the + BoxLayoutManager, achieving a similar result as the + javax.swing.BoxLayout apidocs example. - - Java's InputStreamReader as used by the ECMA48 backend requires a - valid UTF-8 stream. The default X10 encoding for mouse - coordinates outside (160,94) can corrupt that stream, at best - putting garbage keyboard events in the input queue but at worst - causing the backend reader thread to throw an Exception and exit - and make the entire UI unusable. Mouse support therefore requires - a terminal that can deliver either UTF-8 coordinates (1005 mode) - or SGR coordinates (1006 mode). Most modern terminals can do - this. - - jexer.session.TTYSession calls 'stty size' once every second to - check the current window size, performing the same function as - ioctl(TIOCGWINSZ) but without requiring a native library. - - jexer.io.ECMA48Terminal calls 'stty' to perform the equivalent of - cfmakeraw() when using System.in/out. System.out is also - (blindly!) put in 'stty sane cooked' mode when exiting. +More Screenshots +---------------- +Jexer can be run inside its own terminal window, with support for all +of its features including images and mouse, and more terminals: +![Yo Dawg...](/screenshots/jexer_sixel_in_sixel.png?raw=true "Yo Dawg, I heard you like text windowing systems, so I ran a text windowing system inside your text windowing system so you can have a terminal in your terminal.") -System Properties ------------------ +Sixel output uses a single palette which works OK for a variety of +real-world images: -The following properties control features of Jexer: +![Sixel Pictures Of Cliffs Of Moher And Buoy](/screenshots/sixel_images.png?raw=true "Sixel Pictures Of Cliffs Of Moher And Buoy") - jexer.Swing - ----------- +The color wheel with that palette is shown below: - Used only by jexer.demos.Demo1. If true, use the Swing interface - for the demo application. Default: true on Windows platforms - (os.name starts with "Windows"), false on non-Windows platforms. +![Sixel Color Wheel](/screenshots/sixel_color_wheel.png?raw=true "Sixel Color Wheel") - jexer.Swing.cursorStyle - ----------------------- - Used by jexer.io.SwingScreen. Selects the cursor style to draw. - Valid values are: underline, block, outline. Default: underline. +Terminal Support +---------------- +The table below lists terminals tested against Jexer's Xterm backend: -Roadmap -------- +| Terminal | Environment | Mouse Click | Mouse Cursor | Images | +| -------------- | ------------------ | ----------- | ------------ | ------ | +| xterm | X11 | yes | yes | yes | +| jexer | CLI, X11, Windows | yes | yes | yes | +| mlterm | X11 | yes | yes | yes | +| RLogin | Windows | yes | yes | yes | +| alacritty(3) | X11 | yes | yes | no | +| gnome-terminal | X11 | yes | yes | no | +| iTerm2 | Mac | yes | yes | no(5) | +| kitty(3) | X11 | yes | yes | no | +| lcxterm(3) | CLI, Linux console | yes | yes | no | +| mintty | Windows | yes | yes | no(5) | +| rxvt-unicode | X11 | yes | yes | no(2) | +| xfce4-terminal | X11 | yes | yes | no | +| aminal(3) | X11 | yes | no | no | +| konsole | X11 | yes | no | no | +| yakuake | X11 | yes | no | no | +| Windows Terminal(6) | Windows | no | no | no(2) | +| screen | CLI | yes(1) | yes(1) | no(2) | +| tmux | CLI | yes(1) | yes(1) | no | +| putty | X11, Windows | yes | no | no(2) | +| Linux | Linux console | no | no | no(2) | +| qodem(3) | CLI, Linux console | yes | yes(4) | no | +| qodem-x11(3) | X11 | yes | no | no | +| yaft | Linux console (FB) | no | no | yes | -Many tasks remain before calling this version 1.0: +1 - Requires mouse support from host terminal. -0.0.3: FINISH PORTING +2 - Also fails to filter out sixel data, leaving garbage on screen. -- TTreeView - - Also add keyboard navigation -- TDirectoryList - - Also add keyboard navigation -- TFileOpen +3 - Latest in repository. -0.0.4: NEW STUFF +4 - Requires TERM=xterm-1003 before starting. -- Making TMenu keyboard accelerators active/inactive -- TStatusBar -- TEditor -- TWindow - - "Smart placement" for new windows +5 - Sixel images can crash terminal. -0.0.5: BUG HUNT +6 - Version 0.4.2382.0, on Windows 10.0.18362.30. Tested against + WSL-1 Debian instance. -- TSubMenu keyboard mnemonic not working -- Swing performance. Even with double buffering it isn't great. -0.1.0: BETA RELEASE -- TSpinner -- TComboBox -- TListBox -- TCalendar -- TColorPicker +See Also +-------- -Wishlist features (2.0): +* [Tranquil Java IDE](https://tjide.sourceforge.io) is a TUI-based + integrated development environment for the Java language that was + built using a very lightly modified GPL version of Jexer. TJ + provided a real-world use case to shake out numerous bugs and + limitations of Jexer. -- TTerminal - - Handle resize events (pass to child process) -- Screen - - Allow complex characters in putCharXY() and detect them in putStrXY(). -- Drag and drop - - TEditor - - TField - - TText - - TTerminal - - TComboBox +* [LCXterm](https://lcxterm.sourceforge.io) is a curses-based terminal + emulator that allows one to use Jexer with full support on the raw + Linux console. +* [ptypipe](https://gitlab.com/klamonte/ptypipe) is a small C utility + that permits a Jexer TTerminalWindow to resize the running shell + when its window is resized. -Screenshots ------------ -![Several Windows Open Including A Terminal](/screenshots/screenshot1.png?raw=true "Several Windows Open Including A Terminal") -![Yo Dawg...](/screenshots/yodawg.png?raw=true "Yo Dawg, I heard you like text windowing systems, so I ran a text windowing system inside your text windowing system so you can have a terminal in your terminal.") +Acknowledgements +---------------- + +Jexer makes use of the Terminus TrueType font [made available +here](http://files.ax86.net/terminus-ttf/) .