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39
40#ifndef QQUICKSCENEPOSLISTENER_P_H
41#define QQUICKSCENEPOSLISTENER_P_H
42
43#include <QtCore/qobject.h>
44#include <QtCore/qpoint.h>
45#include <QtCore/qset.h>
46#include <QtQuick/private/qquickitemchangelistener_p.h>
47
48QT_BEGIN_NAMESPACE
49
50class QQuickItem;
51
52class QQuickScenePosListener1 : public QObject, public QQuickItemChangeListener
53{
54 Q_OBJECT
55 Q_PROPERTY(QQuickItem *item READ item WRITE setItem FINAL)
56 Q_PROPERTY(QPointF scenePos READ scenePos NOTIFY scenePosChanged FINAL)
57 Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged FINAL)
58
59public:
60 explicit QQuickScenePosListener1(QObject *parent = 0);
61 ~QQuickScenePosListener1();
62
63 QQuickItem *item() const;
64 void setItem(QQuickItem *item);
65
66 QPointF scenePos() const;
67
68 bool isEnabled() const;
69 void setEnabled(bool enabled);
70
71Q_SIGNALS:
72 void scenePosChanged();
73 void enabledChanged();
74
75protected:
76 void itemGeometryChanged(QQuickItem *, QQuickGeometryChange, const QRectF &) override;
77 void itemParentChanged(QQuickItem *, QQuickItem *parent) override;
78 void itemChildRemoved(QQuickItem *, QQuickItem *child) override;
79 void itemDestroyed(QQuickItem *item) override;
80
81private:
82 void updateScenePos();
83
84 void removeAncestorListeners(QQuickItem *item);
85 void addAncestorListeners(QQuickItem *item);
86
87 bool isAncestor(QQuickItem *item) const;
88
89 bool m_enabled;
90 QPointF m_scenePos;
91 QQuickItem *m_item;
92};
93
94QT_END_NAMESPACE
95
96#endif // QQUICKSCENEPOSLISTENER_P_H
97

source code of qtquickcontrols/src/controls/Private/qquicksceneposlistener_p.h