Undo! - Githubissues

valerio-bozzolan / AcrylicPaint

Acrylic Paint is now maintained by @valerio-bozzolan until @Anupam1525 comes back. Note that pull requests are more appreciated than enhancement-reports. We know what Acrylic Paint does and what Acrylic Paint does not :^)

https://gitpull.it/tag/acrylic_paint/

GNU General Public License v3.0

45 stars 32 forks source link

Undo! #37

Open alanthehat opened 8 years ago

alanthehat commented 8 years ago

I don't see an [undo] button

HoWilgh commented 8 years ago

TheOpenSourceNinja commented 8 years ago

How I think we can handle this:

Every time a change is made, make a copy of the image
When the user wants to undo, revert to the previous image copy
The problem is that this can use a lot of memory. We would limit memory usage by limiting the number of undo levels (image copies).

valerio-bozzolan commented 8 years ago

@TheOpenSourceNinja I'm a bit scared because of also apps like Meme Creator crash handling a single image over a couple of MB.

Don't know if we can try it with a raster approach.

TheOpenSourceNinja commented 8 years ago

So am I. Right now I'm just brainstorming.

TheOpenSourceNinja commented 7 years ago

Looking through the Android API documentation, I found these two methods which might be helpful in preventing crashes:

[onLowMemory()](https://developer.android.com/reference/android/app/Activity.html#onLowMemory())
onTrimMemory()

valerio-bozzolan commented 7 years ago

Interesting: https://developer.android.com/training/displaying-bitmaps/load-bitmap.html