mirror of
https://github.com/NaitLee/Cat-Printer.git
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08a67f7b5a
Better Models code, categorized; Follow up newer Bleak, handle “no powered Bluetooth adapters”
207 lines
5.9 KiB
Plaintext
207 lines
5.9 KiB
Plaintext
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YEAR 2022
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MARCH
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31st
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Well, frontend development is just ongoing.
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APRIL
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1st
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Costed one hour try to find an event propagation problem,
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but finally found it's a matter of CSS selector.
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BTW frontend can communicate with backend now.
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2nd
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(Formally) Started playing with Android.
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Costed 4 hours to find why Java class (on android) always can't be found,
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but finally realized pyjnius can't work with python thread/subprocess,
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while I'm using ThreadingHTTPServer.
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See "Note" around:
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https://python-for-android.readthedocs.io/en/latest/buildoptions/#webview
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NEVER MISS ANY SENTENCE OF A DOCUMENT
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3rd
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Costed the whole day to solve WebView problem --
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it doesn't do reaction to <input type="file"> by default.
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Finally done with library AdvancedWebView, but still with some hacks.
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... It's now 4th 2:00 a.m. though
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4th
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Purged many small problems.
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Wished to release it today, but no luck...
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5th
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Bundle script, optimized project structure.
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It's finally ready...
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6th
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Documentation.
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What else? First Release!
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... ...
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(some day)
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Determined to make backend better,
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but resulting in full rewrite.
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... ... (worked hard)
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15th
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Feeling it's there.
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Oh, asyncio always quits like a mad cat, throwing bleak there
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and just ends everything, uncleanly.
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16th
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Solved many things left yesterday.
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Thought i18n needs be universal across there, so made one by myself.
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Tried to implement flip, rtl and wrap in text printing,
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wasted some time, but didn't regret.
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Well, slightly update document and try compiling,
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give everyone a surprise.
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Try --release on p4a build. It worked. 5.9MiB apk, satisfied now?
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Don't forget -Djava.net.useSystemProxies=true on gradle anymore,
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when a proxy to google is needed.
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Phone says a release apk should be signed to be installed.
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Satisfy it. https://stackoverflow.com/questions/4853011/how-to-sign-an-android-apk-file
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Okay, it's 17th 3 a.m. publish it and sleep.
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... ... (doing something else)
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24th
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Took some misc things.
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Made a minor change in `server.py`,
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but resulting in MUCH faster server response...
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I don't know what's the point. But it's great. Period.
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... ... (went away for other ideas)
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JULY
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7th
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In this period I've struggled about many bad things, notably Node.js.
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That's the worst dev experience, ever. Darn it and luckily I didn't take it as my primary skill.
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I'd tell less about; here is a place to start to know what's wrong with all of those:
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http://harmful.cat-v.org/software/
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(Don't take everything serious; what really matters is the philosophy: do one thing and do it well.)
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I'm trying to balance it all the way. And look that in this small project:
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how users are satisfied, average or advanced;
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how developers contributed, novice or experienced.
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Here is an unseen star of the galaxy, not even comparable to the megas.
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But, settling here means that we are unique, and its existence is the best gift, to the world, to everyone.
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Hope the spirit will persist.
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----
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After seeking around, I'll go farther. In my GitHub profile Bio there is a short description.
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Here in this project, I have idea: Tcl/Tk
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https://tcl.tk/
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I want to make a path to communicate between that Python backend and a "better" frontend.
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There's currently one, Web, but Web is too heavy in some cases, and I'm not that satisfied.
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Tcl/Tk is a good choice. Python have Tkinter, but I don't go with it.
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The simplest approach is shell/subprocess `python3 printer.py` at Tcl side.
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Feel free to make one if you have experience & time, but I'd go in other way --
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I want it through stdin/stdout of `wish`, the Tk shell.
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Tk just do the UI, and echo interactions back (like when user click button, or input text)
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The same can also be applied to Web, but maybe with frequent/delayed requests (or even WebSocket),
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so that it become universal.
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That may involve another (partial) rewrite.
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Afraid not, experiment always worth it. And remember: it's all about idea, everyone can make use of then.
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Yawn... bed time...
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9th
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Did some stylesheet fix.
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Then go for image rotation. It shouldn't be that hard:
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0 1 2 3 16 17 18 19 32 33 34 35 48 49 50 51
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4 5 6 7 20 21 22 23 36 37 38 39 52 53 54 55
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8 9 10 11 24 25 26 27 40 41 42 43 56 57 58 59
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12 13 14 15 28 29 30 31 44 45 46 47 60 61 62 63
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16 17 18 19 32 33 34 35 48 49 50 51 64 65 66 67
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20 21 22 23 36 37 38 39 52 53 54 55 68 69 70 71
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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
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16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
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32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
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48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
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Think about HTML canvas ImageData, one dimensional [R,G,B,A,...] array.
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The "big" problem is just make a procedure to transform from the first matrix to the second.
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(and flip the result horizontally)
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Know what happened? I produced a right procedure from very start, but the image screwed up.
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Tried to "fix" it, used at least 4 hours, finally found it's a matter of didn't floor a floating number.
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(Height is got by multiplying aspect ratio)
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So the Internet JavaScript memes are damned true.
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https://programmerhumor.io/javascript-memes/why-is-it-like-this-2/
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https://programmerhumor.io/javascript-memes/sorry-dad-_-2/
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14th
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... How silly is the above approach. This time I simply changed to Uint32Array. That became much more trivial.
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So, I've re-written the image processing "lib". I wanted to go for WebAssembly (with AssemblyScript), so made it separate (in dir `wasm`).
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After finish, it really worked -- but it's ~100% slower than the equivalent JavaScript (`asc` versus `tsc`)
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And that may involve unacceptable change to scripting structure (ESModule etc.), thus Wasm was given up.
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But hey, in this rewrite some algorithm practial overhead was removed, thus much more efficient! Enjoy the blazing speed!
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In main.js the event handler was reworked too. No more double event dispatches.
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Thanks to this, another image processing performance problem is fixed.
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YEAR 2023
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APRIL
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2nd
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Anniversary days to Cat-Printer! Thank all of you! Keep it up!
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