Try to conform to the input method protocol in the way that
SwiftKey expects (and the way that the stock android
components actually do).
* Refactor cursor position logic
* fix getExtractedText() so it includes preedit text
* ignore the hintMaxChars parameter to getExtractedText(), since
it looks like everybody else does
* fix setComposingRegion when preedit is active
* track the start of the preedit and the preedit cursor position,
since the Qt input method query does not give us this information
Change-Id: I2ed8797abacd97ca749ca152fab2a2d5446ef603
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
7e071cebaa