| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QGESTURERECOGNIZER_H |
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| 5 | #define QGESTURERECOGNIZER_H |
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| 6 | |
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| 7 | #include <QtWidgets/qtwidgetsglobal.h> |
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| 8 | #include <QtCore/qnamespace.h> |
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| 9 | |
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| 10 | #ifndef QT_NO_GESTURES |
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| 11 | |
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| 12 | QT_BEGIN_NAMESPACE |
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| 13 | |
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| 14 | |
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| 15 | class QObject; |
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| 16 | class QEvent; |
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| 17 | class QGesture; |
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| 18 | class Q_WIDGETS_EXPORT QGestureRecognizer |
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| 19 | { |
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| 20 | public: |
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| 21 | enum ResultFlag |
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| 22 | { |
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| 23 | Ignore = 0x0001, |
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| 24 | |
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| 25 | MayBeGesture = 0x0002, |
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| 26 | TriggerGesture = 0x0004, |
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| 27 | FinishGesture = 0x0008, |
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| 28 | CancelGesture = 0x0010, |
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| 29 | |
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| 30 | ResultState_Mask = 0x00ff, |
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| 31 | |
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| 32 | ConsumeEventHint = 0x0100, |
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| 33 | // StoreEventHint = 0x0200, |
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| 34 | // ReplayStoredEventsHint = 0x0400, |
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| 35 | // DiscardStoredEventsHint = 0x0800, |
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| 36 | |
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| 37 | ResultHint_Mask = 0xff00 |
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| 38 | }; |
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| 39 | Q_DECLARE_FLAGS(Result, ResultFlag) |
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| 40 | |
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| 41 | QGestureRecognizer(); |
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| 42 | virtual ~QGestureRecognizer(); |
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| 43 | |
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| 44 | virtual QGesture *create(QObject *target); |
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| 45 | virtual Result recognize(QGesture *state, QObject *watched, |
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| 46 | QEvent *event) = 0; |
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| 47 | virtual void reset(QGesture *state); |
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| 48 | |
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| 49 | static Qt::GestureType registerRecognizer(QGestureRecognizer *recognizer); |
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| 50 | static void unregisterRecognizer(Qt::GestureType type); |
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| 51 | }; |
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| 52 | |
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| 53 | Q_DECLARE_OPERATORS_FOR_FLAGS(QGestureRecognizer::Result) |
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| 54 | |
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| 55 | QT_END_NAMESPACE |
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| 56 | |
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| 57 | #endif // QT_NO_GESTURES |
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| 58 | |
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| 59 | #endif // QGESTURERECOGNIZER_H |
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| 60 | |
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