74 lines
3.8 KiB
Plaintext
74 lines
3.8 KiB
Plaintext
README
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======
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Twm4Nx is a port of twm, Tab Window Manager (or Tom's Window Manager)
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version 1.0.10 to NuttX NX windows server. No, a port is not the right
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word. It is a re-design of TWM from the inside out to work with the NuttX
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NX server. The name Twm4Nx reflects this legacy. But Twm4Nx is more a
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homage to TWM than a port of TWM.
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The original TWM was based on X11 which provides a rich set of features.
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TWM provided titlebars, shaped windows, several forms of icon management,
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user-defined macro functions, click-to-type and pointer-driven keyboard
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focus, graphic contexts, and user-specified key and pointer button bindings,
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etc.
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Twm4Nx, on the other hand is based on the NuttX NX server which provides
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comparatively minimal support. Additional drawing support comes from
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the NuttX NxWidgets library (which necessitated the change to C++).
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Twm4Nx is greatly stripped down and targeted on small embedded systems
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with minimal resources. For example, no assumption is made about the
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availability of a file system; no .twmrc file is used. Bitmaps are not
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used (other than for fonts).
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The TWM license is, I believe compatible with the BSD license used by NuttX.
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The origin TWM license required notice of copyrights within each file and
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a full copy of the original license which you can find in the COPYING file.
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within this directory.
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STATUS
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======
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2019-04-28: This port was brutal. Much TWM logic was removed because it
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depended on X11 features (or just because I could not understand how to
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use it). The replacement logic is only mostly in place but more
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needs to be done to have a complete system (hence, it is marked
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EXPERIMENTAL). The kinds of things that need to done are:
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1. Update some logic that is only fragmentary for things like resizing.
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Resizing events should be be generated when user pulls to right,
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left, top, bottom, etc. None of that is implemented.
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2. Right click should bring up a window list (like the icon manager???)
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3. For TWM-like behavior, a window frame and toolbar should be highlighted
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when the window has focus.
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4. A right click on the toolbar should bring up a window-specific menu.
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2019-05-02: Some testing progress. The system comes up, connects to and
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initializes the VNC window. For some reason, the VNC client breaks the
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connection. The server is no longer connected so Twm4Nx constipates and
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and eventually hangs.
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2019-05-08: I abandoned the VNC interface and found that things are much
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better using a direct, hardware framebuffer. The background comes up
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properly and the Icon Manager appears properly in the upper rightthand
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corner. The Icon Manager Window can be iconfified or de-inconified.
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The Icon Manager window can be grabbed by the toolbar title and moved
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about on the window (the movement is not very smooth on the particular
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hardware that I am working with).
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2019-05-10: A left click on the background brings up the main menu. At
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present there are only two options: "Desktop" which will iconify all
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windows and "Twm4Nx Icon Manager" which will de-configy and/or raise
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the Icon Manager window to the top of the hierarchy. That latter option
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is only meaningful when the desktop is very crowded.
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Further progress depends upon getting a some additional applications
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in place in the main menu in place. NxTerm is needed as is probably
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a clock. These would provide good illustrations of how to hook in an
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arbitrary application.
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Some known bugs yet-to-fixed. Surely there are more as will be revealed
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by additional testing:
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1. The is a small artifact in the upper lefthand corner. I am not sure
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exactly what that is.
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2. The logic to move an icon on the desk top does not work.
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3. There is no calibration screen for touchscreen calibration.
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