E-Paper: Simple drawing app

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Due to the lack of good open source drawing apps to port to the NST, I wrote myself a simple one specifically for the NST, taking advantage of the fast refresh mode (A2).

The app is quite simple: it is multi-page, can export and import pages from PNG files, and the usual basic stuff you'd expect from a (basic) drawing app. See some screenshots below.

Actually, you can import any PNG images folder by long pressing the folder at the import screen. However, for now you can't erase pixels from imported pages. This is because the drawer is curve based (you create and delete curves), not pixel based.

In addition to the icons at the bottom of the screen, the left side keys perform undo/redo and the right side switch pages.

Comments and suggestions are welcome, also if some is willing to help me port this to the PRS-T1, let me know.

Source code is available at: https://github.com/marspeople/E-Paper

Changelog:
1.1: Background of exported images is now white instead of transparent.

I would like to ask, are there any text mode, allowing users to type in some text?

Support your great app!

Nice work. Just tried it out. Pushing the limits of what an e-paper device can do (actually, it's a bit beyond...) but still pretty rad that you were able to make it! Thanks!

pretty great app. really liked the simplicity and such.
but i would want to have some options on saving images, by default on png images, drawing is black and background is transparent, so previewing on a different app makes my images weird. it could has some options, like background and text colors, image size and jpg/png output etc. And also it would be cool to add some texts to my drawings as wheilitjohnny said.
cheers

Marspeople, I think this app is great. I've looked for apps which my kids can use for drawing and this answers the need.

Originally Posted by drmxmyt

pretty great app. really liked the simplicity and such.
but i would want to have some options on saving images, by default on png images, drawing is black and background is transparent, so previewing on a different app makes my images weird. it could has some options, like background and text colors, image size and jpg/png output etc. And also it would be cool to add some texts to my drawings as wheilitjohnny said.
cheers

You're right, I forgot about fixing the transparent background. Fixed now.

Regarding your other requests, I think they defeat the simplicity purposes of the app. However, adding typed text may be interesting, I will consider that.

E-Paper app

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Great little app! Would be great if you could add a button to refresh the page once in a while. After many deletes the shadows can be overwhelming and distracting. I am currently deciding which one I like better: E-Paper or FreeNote (more features but also more complicated). I think in the end simplicity trumps flexibility.

Here is a small tip: you can draw straight line segments by touching the screen with two fingers (one after another) and releasing them at reverse order.

Originally Posted by nrseife

Great little app! Would be great if you could add a button to refresh the page once in a while. After many deletes the shadows can be overwhelming and distracting. I am currently deciding which one I like better: E-Paper or FreeNote (more features but also more complicated). I think in the end simplicity trumps flexibility.

Well, you can simply press the n button twice (don't press too fast or it will create ghost at the bottom).

=>> App for making lecture notes

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Hi!
I would like to suggest some simple upgrade to your app, which equivallent I failed to find on Market.
Since E-Ink Multi Touch screen of NST seems to be great also for making lecture notes, but for what I have failed to find any suitable app, althought only simple thing would make your app to be great for this purpouse. You could then even start of selling it.

Here is the simple idea:

Screen divided into 3 frames:

1.) Overlook-frame of printable-part of A4/A5 -- used for scroolling/scalling of the Zoomed-frame around paper - which should look like small box on large A4,
2.) Zoomed-frame -- used for handwritting text, drawing pictures, writting formulas into the small box on Overlook Frame
3.) Toolbar-frame -- same as yours only with zoom +- buttons. also scalling of Zoomed-frame box on Overlook-frame could be done by multitouch.

Would be great hack for students of Natural arts - could provide ability to write mathematical formulas and schemes and so on, not loosing possibililty of hand writting.

What do you think?

That looks like a really nice, polished app.

I was just wondering if anybody uses the capabilities of ezPDF Reader to do similar things.