Touch screen improvements

[GoogleCodeExporter]

For clients with touchscreens,

1. Keep the current drag behaviour to pan the map
2. Add a new handler to detect a click+hold event on the touchscreen to
allow zooming

Suggested implementation of touchscreen zooming ...

1. Click and hold touchscreen for 2 secs and drag "up" to zoom in by half
the current map width/height, centered on the click point.
2. Click and hold touchscreen for 2 secs and drag "down" to zoom out by
twice the current map width/height, centered on the click point.

This is a bit like mouse gestures i guess and would make navigation a lot
easier.

Original issue reported on code.google.com by ch...@narx.net on 4 Oct 2007 at 8:59

[GoogleCodeExporter]

Original comment by khanh....@gmail.com on 5 Oct 2007 at 10:21

• Changed state: Accepted

[GoogleCodeExporter]

Original comment by khanh....@gmail.com on 30 Nov 2007 at 8:36

• Added labels: Type-Enhancement, Milestone-Release1.2.x
• Removed labels: Type-Defect