Add a virtual keyboard to myth line edits.

[jkondis <jkondis@…>]

A virtual keyboard for Myth Line Edits that can allow all the text input anyone would care about without having to grab the keyboard. The idea is similar to the MythRemoteLineEdit? functionaility found in MythDVD and MythMusic, but is applied to all line edit boxes and provides a graphical keyboard instead of using cell-phone style text entry.

[jkondis <jkondis@…>]

Patch introduces virtual keyboard function to myth line edits.

[jkondis <jkondis@…>]

• To use, hit "Enter" or "Select" while a Line Edit box is in focus. A popup virtual keyboard window will appear. Use the up/down/left/right/OK buttons on your remote to choose and press keys. There is also shift (+ lock), cursor right/left, backspace, delete, and done buttons.
• When done, choose "Back/Exit?" (or the "Escape" key on a keyboard) or press the "Done" key.
• To turn off the functionality (i.e. popup won't appear when you hit enter on a line edit), uncheck "Use line edit virtual keyboards" in the Appearance->QT Themes menu window.

[Isaac Richards]

Sorry, but this won't be applied. It uses too much Qt to work with mythui, and since the UI is going to start being converted soon, it doesn't make sense to apply this patch.