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* Copyright (C) 2014 Canonical, Ltd.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 3.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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import Ubuntu.Gestures 0.1
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property real trackedValue: 0
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property bool velocityAboveThreshold: false
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property real velocityThreshold: 0.4
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velocityAboveThreshold = false;
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calc.trackedPosition = trackedValue;
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velocityAboveThreshold = Math.abs(calc.calculate()) > velocityThreshold;
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if (velocityAboveThreshold) { // only start timer if we're above the threshold.
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velocityTimer.start();
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onTrackedValueChanged: update();
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AxisVelocityCalculator {
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onTriggered: update();