StyleShare/wand — pull request #19 by obsoleter (2012-05-08 20:51:31+00:00)
Title: Add watermark method

Hello @dahlia,

I've added a watermark method on the Image class in these commits. Though I'm sure it works and I have a few simplistic tests for it, there are a couple of things I'm not sure about because I've never worked with ctypes before:

- Am I checking all that I need to in the watermark method? I did my best to mimic the checks in other methods, but if you want to give me some pointers I'll add what is necessary.
- Some of the values in the magickwand methods I've hardcoded in. If I were to put them somewhere as constants where would prefer I do that?
- The signature for the watermark method could be improved to give more flexibility about where and how the watermark appears (though this could be done later).

Anyway, thanks for reviewing.

Cheers,
Jeremy