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authorJan Arve Sæther <jan-arve.saether@qt.io>2017-08-30 15:18:04 +0200
committerShawn Rutledge <shawn.rutledge@qt.io>2017-09-03 16:31:54 +0000
commit7c54910a660dfe8e8b9fa20a82a93fcda2eb198f (patch)
treea66933debd48fea754f3e4820804b513721abda9 /src/quick/handlers/qquickmultipointhandler_p.h
parent72f320a266d7f6e8055fdb57d0996363fcbc027a (diff)
Rename single and multi pointer handler classnames
Renames: QQuickPointerSingleHandler -> QQuickSinglePointHandler QQuickMultiPointerHandler -> QQuickMultiPointHandler Change-Id: I10c54944f85ca7cac374ebc6241d61793e2d38bf Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Diffstat (limited to 'src/quick/handlers/qquickmultipointhandler_p.h')
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diff --git a/src/quick/handlers/qquickmultipointhandler_p.h b/src/quick/handlers/qquickmultipointhandler_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKPOINTERMULTIHANDLER_H
+#define QQUICKPOINTERMULTIHANDLER_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qquickitem.h"
+#include "qevent.h"
+#include "qquickpointerdevicehandler_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q_AUTOTEST_EXPORT QQuickMultiPointHandler : public QQuickPointerDeviceHandler
+{
+ Q_OBJECT
+ Q_PROPERTY(int requiredPointCount READ requiredPointCount WRITE setRequiredPointCount NOTIFY requiredPointCountChanged)
+ Q_PROPERTY(qreal pointDistanceThreshold READ pointDistanceThreshold WRITE setPointDistanceThreshold NOTIFY pointDistanceThresholdChanged)
+
+public:
+ explicit QQuickMultiPointHandler(QObject *parent = 0, int requiredPointCount = 2);
+ ~QQuickMultiPointHandler();
+
+ int requiredPointCount() const { return m_requiredPointCount; }
+ void setRequiredPointCount(int c);
+
+ qreal pointDistanceThreshold() const { return m_pointDistanceThreshold; }
+ void setPointDistanceThreshold(qreal pointDistanceThreshold);
+
+signals:
+ void requiredPointCountChanged();
+ void pointDistanceThresholdChanged();
+
+protected:
+ struct PointData {
+ PointData() : id(0), angle(0) {}
+ PointData(quint64 id, qreal angle) : id(id), angle(angle) {}
+ quint64 id;
+ qreal angle;
+ };
+
+ bool wantsPointerEvent(QQuickPointerEvent *event) override;
+ bool sameAsCurrentPoints(QQuickPointerEvent *event);
+ QVector<QQuickEventPoint *> eligiblePoints(QQuickPointerEvent *event);
+ QPointF touchPointCentroid();
+ QVector2D touchPointCentroidVelocity();
+ qreal averageTouchPointDistance(const QPointF &ref);
+ qreal averageStartingDistance(const QPointF &ref);
+ qreal averageTouchPointAngle(const QPointF &ref);
+ qreal averageStartingAngle(const QPointF &ref);
+ QVector<PointData> angles(const QPointF &ref) const;
+ static qreal averageAngleDelta(const QVector<PointData> &old, const QVector<PointData> &newAngles);
+ void acceptPoints(const QVector<QQuickEventPoint *> &points);
+ bool grabPoints(QVector<QQuickEventPoint *> points);
+
+protected:
+ QVector<QQuickEventPoint *> m_currentPoints;
+ int m_requiredPointCount;
+ qreal m_pointDistanceThreshold;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QQuickMultiPointHandler)
+
+#endif // QQUICKPOINTERMULTIHANDLER_H