| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | // |
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| 5 | // W A R N I N G |
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| 6 | // ------------- |
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| 7 | // |
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| 8 | // This file is not part of the QtGraphs API. It exists purely as an |
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| 9 | // implementation detail. This header file may change from version to |
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| 10 | // version without notice, or even be removed. |
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| 11 | // |
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| 12 | // We mean it. |
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| 13 | |
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| 14 | #ifndef QGRAPHSINPUTHANDLER_P_H |
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| 15 | #define QGRAPHSINPUTHANDLER_P_H |
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| 16 | |
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| 17 | #include <QtQuick/qquickitem.h> |
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| 18 | |
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| 19 | QT_BEGIN_NAMESPACE |
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| 20 | |
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| 21 | class QQuickGraphsItem; |
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| 22 | class QQuickTapHandler; |
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| 23 | class QQuickDragHandler; |
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| 24 | class QQuickPinchHandler; |
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| 25 | class QQuickWheelHandler; |
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| 26 | class QQuickWheelEvent; |
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| 27 | |
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| 28 | class QGraphsInputHandler : public QQuickItem |
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| 29 | { |
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| 30 | Q_OBJECT |
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| 31 | |
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| 32 | public: |
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| 33 | QGraphsInputHandler(QQuickItem *parent = nullptr); |
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| 34 | |
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| 35 | ~QGraphsInputHandler() override; |
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| 36 | |
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| 37 | void setGraphsItem(QQuickGraphsItem *item); |
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| 38 | QPoint pendingPoint() { return m_pendingPoint; } |
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| 39 | |
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| 40 | void setZoomEnabled(bool enable); |
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| 41 | bool isZoomEnabled(); |
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| 42 | void setZoomAtTargetEnabled(bool enable); |
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| 43 | bool isZoomAtTargetEnabled(); |
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| 44 | void setRotationEnabled(bool enable); |
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| 45 | bool isRotationEnabled(); |
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| 46 | void setSelectionEnabled(bool enable); |
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| 47 | bool isSelectionEnabled(); |
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| 48 | |
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| 49 | void setDefaultInputHandler(); |
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| 50 | void unsetDefaultInputHandler(); |
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| 51 | void unsetDefaultTapHandler(); |
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| 52 | void unsetDefaultDragHandler(); |
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| 53 | void unsetDefaultWheelHandler(); |
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| 54 | void unsetDefaultPinchHandler(); |
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| 55 | void setDragButton(Qt::MouseButtons button); |
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| 56 | |
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| 57 | void onTapped(); |
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| 58 | void onTranslationChanged(QVector2D delta); |
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| 59 | void onGrabChanged(QPointingDevice::GrabTransition transition, QEventPoint point); |
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| 60 | void onWheel(QQuickWheelEvent *event); |
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| 61 | void onPinchScaleChanged(qreal delta); |
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| 62 | |
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| 63 | Q_SIGNAL void mouseMove(QPoint mousePos); |
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| 64 | |
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| 65 | protected: |
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| 66 | void hoverMoveEvent(QHoverEvent *event) override; |
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| 67 | |
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| 68 | private: |
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| 69 | bool m_zoomEnabled; |
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| 70 | bool m_zoomAtTarget; |
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| 71 | bool m_rotationEnabled; |
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| 72 | bool m_selectionEnabled; |
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| 73 | QPoint m_pendingPoint; |
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| 74 | qreal m_pinchDiff; |
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| 75 | |
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| 76 | QQuickTapHandler *m_tapHandler; |
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| 77 | QQuickPinchHandler *m_pinchHandler; |
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| 78 | QQuickWheelHandler *m_wheelHandler; |
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| 79 | QQuickDragHandler *m_dragHandler; |
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| 80 | |
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| 81 | QQuickGraphsItem *m_graphsItem; |
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| 82 | }; |
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| 83 | |
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| 84 | QT_END_NAMESPACE |
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| 85 | |
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| 86 | #endif // QGRAPHSINPUTHANDLER_P_H |
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| 87 | |
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