Unity 8
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EdgeDragArea.qml
1 /*
2  * Copyright (C) 2013 Canonical, Ltd.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; version 3.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 import QtQuick 2.0
18 import Ubuntu.Components 0.1
19 import Ubuntu.Gestures 0.1
20 
21 /*
22  A DirectionalDragArea wrapper that provides some well-chosen defaults
23  for its gesture recognition parameters.
24 */
25 DirectionalDragArea {
26 
27  // TODO: Re-evaluate those or even the recognition heuristics itself once
28  // we have gesture cancelling/forwarding in place.
29  //
30  // The idea here is that it's better having lax rules than false negatives.
31  // False negatives are very frustrating to the user.
32  maxDeviation: defaultMaxDeviation
33  wideningAngle: defaultWideningAngle
34  distanceThreshold: defaultDistanceThreshold
35  minSpeed: defaultMinSpeed
36  maxSilenceTime: defaultMaxSilenceTime
37 
38  readonly property real defaultMaxDeviation: units.gu(3)
39  readonly property real defaultWideningAngle: 50
40  readonly property real defaultDistanceThreshold: units.gu(1.5)
41  // some people were getting false negatives with it enabled.
42  readonly property real defaultMinSpeed: units.gu(0)
43  readonly property int defaultMaxSilenceTime: 200
44 }