See https://developer.android.com/tools/help/draw9patch.html for a 9-patch description.
If you want to use the interactive viewer read the additional installation notes under "Interactive viewer".
$ pip install ninepatch
from ninepatch import Ninepatch
ninepatch = Ninepatch('ninepatch_bubble.9.png')
print(ninepatch.content_area) # content_area(left=23, top=20, right=27, bottom=59)
scaled_image = ninepatch.render(500, 400) # creates a new PIL imageYour image must be a PNG image with a transparent background. The scale and fill guide color must be 100% opaque black.
Scale and open image in a viewer (PIL image.show()):
$ ninepatch render ninepatch_bubble.9.png 300 300
Save the scaled image to a new file:
$ ninepatch render ninepatch_bubble.9.png 300 300 scaled.png
Slice the 9patch into tiles:
$ ninepatch slice ninepatch_bubble.9.png ./outputdir
Interactively resize and preview an image in a Tkinter viewer:
$ ninepatch_viewer ninepatch_bubble.9.png or just: $ ninepatch_viewer without arguments to see the demo image
If you want to use the viewer then python-pil.imagetk has to be installed.
On Ubuntu do:
$ sudo apt-get install python-pil.imagetk
If you want to install into a virtualenv, pip needs the following packages to compile PIL with Tkinter support:
$ sudo apt-get install python-tk tk8.6-dev
(You can trigger a recompile of PIL with: "pip install -I ninepatch")
- 0.1.19
- fixed error in caching
- 0.1.18
- optional caching for slice() and render()
- 0.1.17
- new method export_slices()
- changed command line parameters (render/slice)
- 0.1.10
- missing guides are now handled properly
- 0.1.9
- parse the fill area
- switched to setuptools
- 0.1.4
- added Tkinter viewer
I wrote this tool for the ninepatch_actor.py in my Clutter example project: https://github.com/vindolin/Clutter-Python-examples
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