grail.git/src/grail-gestures.c, branch master

Update copyright information

2011-04-28T16:43:16+00:00

The license information was always right, but the copyright information for this particular project was never quite right. Corrected with this patch. No functional changes. Signed-off-by: Henrik Rydberg

Remove the obsoleted transformation filter

2011-04-12T16:16:16+00:00

Remove the additional filtering performed in the gestural transforms. This used to serve a purpose during development against devices without per-contact filtering. Since then, all devices are filtered, rendering the extra filtering obsolete. This patch also fixes a problem with rotation events. Currently, if you rotate very fast, the rotation angle will be close to the true angle. However, if you rotate very slow, the rotation angle will be much less than the true rotation angle. Signed-off-by: Chase Douglas Signed-off-by: Henrik Rydberg

Convert to utouch-frame mapping

2011-04-04T17:46:29+00:00

Remove the grail-internal mapping code and rely directly on utouch-frame instead. Passes the unit test designed for this change. Signed-off-by: Henrik Rydberg

Disable rotation gestures for semi-mt devices

2011-04-04T17:46:28+00:00

To avoid poor user experience with semi-mt devices, disable rotation detection, such that only drag and scale is emitted. Signed-off-by: Chase Douglas Signed-off-by: Henrik Rydberg

Never active gestures below activation threshold

2011-03-28T20:02:11+00:00

Currently, all gestures activate after a certain time, such that the smallest change result in gesture events. This was designed to minimize disruption in pointer movement. Since grail no longer handles pointers, the logic can be simplified to only activate when the threshold is reached. Signed-off-by: Henrik Rydberg

Adjust gesture buffer sizes and timings

2011-03-14T11:55:19+00:00

Adjust timings to put drag, pinch and rotate on more equal footing, with regard to gesture timeouts. Also make sure events are not lost during hold, now that all MT events are buffered as well. Signed-off-by: Henrik Rydberg

Introduce activation hold time

2011-03-14T11:55:19+00:00

Do not activate a drag, pinch or rotate immediately, even if the activation threshold is met. This allows for a smoother transition between fingers. Signed-off-by: Henrik Rydberg

Introduce gesture timeouts

2011-03-14T11:55:19+00:00

The timeout of a gesture is integral to the gesture type. This patch introduces timeout per gesture type, potentially enabling more control over gesture timing aspects. The timeout logic replaces the recently added recognition state. Signed-off-by: Henrik Rydberg

Replace touch logic with utouch frame engine

2011-01-02T11:39:07+00:00

The original grail uses an internal touch framework and exports some touch information as extended attributes to gesture events. This was never quite the intention, but rather to expose gestures and touches on a similar footing, such that grail can be input agnostic. This patch starts off by replacing the internal touch framework with the utouch-frame engine. Signed-off-by: Henrik Rydberg

Allow slow tapping

2010-09-10T12:06:12+00:00

For the benefit of hardware that cannot accurately meet the desirable response times, allow for tapping times up to 300 ms. Signed-off-by: Henrik Rydberg