Touch control suggestion

[xiushu]

Thanks for the pull request. I just wanted to see the source but this is even better.

edit: btw. just to clarify for future instances. If you modify and compile for personal use you have no obligation. But if you distribute the binary to other people you must also give access to the source-code. It does not matter in which way you give access to the source, you can just upload a tarball of the full source, send a diff of your patch as an email or whichever way you want. But honestly, thanks a lot for uploading it to github.

Well, it is my first time to use the github . During this time ,I made a lot of mistakes.In fact,I do not how to use the github. But finally ,with the help of sum2012 , I upload the part of the source.