To programmers: help for a little "battery Report" app improvement

[ixtab]

Originally Posted by NiLuJe

@Aeris: I was wondering if centering it wouldn't work better .

I have a bit of something that auto-centers eips calls somewhere, let me try something...

If you don't find it in your files, my PW jailbreak.sh also includes centering logic.

[Aeris]

Is there any way to clear screen after eipsing? I've tryed eips -c but i clears ALL the screen, not only the new written portion... and overything lines lives a black space, not the starting condition (I'm not talking of this script only). A screen refresh command that clear all eips and these only would be perfect

[ixtab]

Originally Posted by Aeris

Is there any way to clear screen after eipsing? I've tryed eips -c but i clears ALL the screen, not only the new written portion

Yes, and no.

The simplest way is to overwrite the existing text with spaces (something like eips x y " "). Another options is to fill some rectangle with a particular color.

In any case, this will NOT simply "remove" the text that you wrote and show whatever was there before. It will paint over it again. What was there before you started writing to the screen will be lost in any case, until it gets refreshed - by whichever means, usually by an update -- in this case -- of the KUAL menu.

[Aeris]

Originally Posted by ixtab

Yes, and no.

The simplest way is to overwrite the existing text with spaces (something like eips x y " "). Another options is to fill some rectangle with a particular color.

In any case, this will NOT simply "remove" the text that you wrote and show whatever was there before. It will paint over it again. What was there before you started writing to the screen will be lost in any case, until it gets refreshed - by whichever means, usually by an update -- in this case -- of the KUAL menu.

Absolutely clear, thanks

[NiLuJe]

@ixtab: Thanks, found it (it was in the bridge ) .

That exposed a not-completely-accurate assumption in all my previous stuff, so, yay .

Anyway, done, updated the zip in the previous message .

[knc1]

Originally Posted by NiLuJe

@knc1: What's the issue and and on which devices with Backdoor Lock's eips calls?

Hmm...
It was (or is) on a Paperwhite.
I had to change the default configuration to disable the on-screen report.

"Life" has interfered with all of my hobby plans for the last three weeks or so -
So I should be able to find that device in my stack of "work to finish" and provide you with better details of the problem(s).

[NiLuJe]

FWIW, I just went ahead and played with the 'clear screen' idea a bit, and it's of course doable by playing around with the framebuffer...

It's not pretty, but it works .

(Cf. current_ss_preview() in the ScreenSavers KUAL ext).

(Yes, that means that a crazy person should be able to build a crappy image viewer around KUAL ).

[brianinmaine]

I remember seeing on here somewhere a script (by twobob??) that copies the screen to a buffer, runs the eips part, then restore what was shown. Can't seem to find it with the search... Seems to be what you are looking for?

[ixtab]

This?

Yeah, that'll work. The downside is that the filename is unpredictable.

You could create a slightly patched "screenshot" executable like this:

sed -e 's/\/mnt\/us\/screenshot_%Y_%m_%dT%H_%M_%S%z.png/\/tmp\/screenshot_for_kual_and_eips_hack.png/' /usr/sbin/screenshot > screenshot.hacked

... and then use screenshot.hacked instead. It will always create the screenshot as /tmp/screenshot_for_kual_and_eips_hack.png.

Just make sure that the file "name" is exactly the same length as the original one in the binary, i.e., that the screenshot.hack and screenshot files end up with the exact same file size again.*

(No, I don't attach the patched file for copyright reasons, and I suggest that you don't ship it either. You could just create it on the fly within the script, if it doesn't exist).

(*) I didn't find a way to tell sed to insert a zero byte, that would be cleaner. But for some reason \x00 doesn't work.

PS: Tested on Paperwhite only. I'm pretty confident that this would work on the Touch too, but I'm not sure about other devices (e.g. K3/K4).

[knc1]

Originally Posted by brianinmaine

I remember seeing on here somewhere a script (by twobob??) that copies the screen to a buffer, runs the eips part, then restore what was shown. Can't seem to find it with the search... Seems to be what you are looking for?

Geekmaster did that -
Check some of his "video" threads.

[ixtab]

The problem is that writing to the framebuffer usually has no effect when the framework is running. The screenshot/eips solution works though. Don't ask me why

[NiLuJe]

Thanks guys, but did anyone even check the code I linked in my message?

I went with 'dump fb0 -> show pretty things -> restore fb0 dump -> refresh screen', which is, IIRC, more or less what GM did (except maybe he used a proper ioctl to refresh the screen, I use eips '' to make sure it works everywhere).

I thought about using screenshot/scrot manually, but I'm not sure it's even there on FW 2/3, so I didn't even try ;p.

[ixtab]

Ouch. Yeah, I seem to have missed the "refresh screen" part - I stopped after writing to the framebuffer and not seeing a result

[Vladi69]

Hello, I do not know if this thread is stilla active.
I installed in my PW3 this hack, but can not figure what "Tweak battery icon" do, maybe it is not compatible?

Thank you

[knc1]

It does not appear to do anything on my PW-3

IIRC - when tweak'd, it shows a percentage of charge as a number.