| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QQUICKWHEELHANDLER_H |
| 5 | #define QQUICKWHEELHANDLER_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <QtGui/qevent.h> |
| 19 | #include <QtQuick/qquickitem.h> |
| 20 | |
| 21 | #include "qquicksinglepointhandler_p.h" |
| 22 | |
| 23 | QT_BEGIN_NAMESPACE |
| 24 | |
| 25 | class QQuickWheelEvent; |
| 26 | class QQuickWheelHandlerPrivate; |
| 27 | |
| 28 | class Q_QUICK_EXPORT QQuickWheelHandler : public QQuickSinglePointHandler |
| 29 | { |
| 30 | Q_OBJECT |
| 31 | Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation NOTIFY orientationChanged) |
| 32 | Q_PROPERTY(bool invertible READ isInvertible WRITE setInvertible NOTIFY invertibleChanged) |
| 33 | Q_PROPERTY(qreal activeTimeout READ activeTimeout WRITE setActiveTimeout NOTIFY activeTimeoutChanged) |
| 34 | Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged) |
| 35 | Q_PROPERTY(qreal rotationScale READ rotationScale WRITE setRotationScale NOTIFY rotationScaleChanged) |
| 36 | Q_PROPERTY(QString property READ property WRITE setProperty NOTIFY propertyChanged) |
| 37 | Q_PROPERTY(qreal targetScaleMultiplier READ targetScaleMultiplier WRITE setTargetScaleMultiplier NOTIFY targetScaleMultiplierChanged) |
| 38 | Q_PROPERTY(bool targetTransformAroundCursor READ isTargetTransformAroundCursor WRITE setTargetTransformAroundCursor NOTIFY targetTransformAroundCursorChanged) |
| 39 | Q_PROPERTY(bool blocking READ isBlocking WRITE setBlocking NOTIFY blockingChanged REVISION(6, 3)) |
| 40 | |
| 41 | QML_NAMED_ELEMENT(WheelHandler) |
| 42 | QML_ADDED_IN_VERSION(2, 14) |
| 43 | |
| 44 | public: |
| 45 | explicit QQuickWheelHandler(QQuickItem *parent = nullptr); |
| 46 | |
| 47 | Qt::Orientation orientation() const; |
| 48 | void setOrientation(Qt::Orientation orientation); |
| 49 | |
| 50 | bool isInvertible() const; |
| 51 | void setInvertible(bool invertible); |
| 52 | |
| 53 | qreal activeTimeout() const; |
| 54 | void setActiveTimeout(qreal timeout); |
| 55 | |
| 56 | qreal rotation() const; |
| 57 | void setRotation(qreal rotation); |
| 58 | |
| 59 | qreal rotationScale() const; |
| 60 | void setRotationScale(qreal rotationScale); |
| 61 | |
| 62 | QString property() const; |
| 63 | void setProperty(const QString &name); |
| 64 | |
| 65 | qreal targetScaleMultiplier() const; |
| 66 | void setTargetScaleMultiplier(qreal targetScaleMultiplier); |
| 67 | |
| 68 | bool isTargetTransformAroundCursor() const; |
| 69 | void setTargetTransformAroundCursor(bool ttac); |
| 70 | |
| 71 | bool isBlocking() const; |
| 72 | void setBlocking(bool blocking); |
| 73 | |
| 74 | Q_SIGNALS: |
| 75 | void wheel(QQuickWheelEvent *event); |
| 76 | |
| 77 | void orientationChanged(); |
| 78 | void invertibleChanged(); |
| 79 | void activeTimeoutChanged(); |
| 80 | void rotationChanged(); |
| 81 | void rotationScaleChanged(); |
| 82 | void propertyChanged(); |
| 83 | void targetScaleMultiplierChanged(); |
| 84 | void targetTransformAroundCursorChanged(); |
| 85 | Q_REVISION(6, 3) void blockingChanged(); |
| 86 | |
| 87 | protected: |
| 88 | bool wantsPointerEvent(QPointerEvent *event) override; |
| 89 | void handleEventPoint(QPointerEvent *event, QEventPoint &point) override; |
| 90 | void onTargetChanged(QQuickItem *oldTarget) override; |
| 91 | void onActiveChanged() override; |
| 92 | void timerEvent(QTimerEvent *event) override; |
| 93 | |
| 94 | Q_DECLARE_PRIVATE(QQuickWheelHandler) |
| 95 | }; |
| 96 | |
| 97 | QT_END_NAMESPACE |
| 98 | |
| 99 | #endif // QQUICKWHEELHANDLER_H |
| 100 |