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36 
37 #ifndef QDECLARATIVEGEOMAPITEMTRANSITIONMANAGER_H
38 #define QDECLARATIVEGEOMAPITEMTRANSITIONMANAGER_H
39 
40 //
41 //  W A R N I N G
42 //  -------------
43 //
44 // This file is not part of the Qt API.  It exists purely as an
45 // implementation detail.  This header file may change from version to
46 // version without notice, or even be removed.
47 //
48 // We mean it.
49 //
50 
51 #include <QtLocation/private/qlocationglobal_p.h>
52 #include <QtQuick/QQuickItem>
53 #include <QtQuick/private/qquicktransitionmanager_p_p.h>
54 
55 QT_BEGIN_NAMESPACE
56 
57 class QDeclarativeGeoMapItemView;
58 
59 class QDeclarativeGeoMapItemTransitionManager : public QQuickTransitionManager
60 {
61 public:
62     enum TransitionState {
63         NoTransition, EnterTransition, ExitTransition
64     };
65 
66     QDeclarativeGeoMapItemTransitionManager(QObject *mapItem);
67 
68     void transitionEnter();
69     void transitionExit();
70 
prepareEnterTransition()71     bool prepareEnterTransition()
72     {
73         if (m_transitionState == QDeclarativeGeoMapItemTransitionManager::EnterTransition
74                 && isRunning())
75             return false;
76 
77         if (m_transitionState != QDeclarativeGeoMapItemTransitionManager::EnterTransition) {
78     //        setVisible(true);
79             m_transitionState = QDeclarativeGeoMapItemTransitionManager::EnterTransition;
80         }
81         return true;
82     }
prepareExitTransition()83     bool prepareExitTransition()
84     {
85         if (m_transitionState == QDeclarativeGeoMapItemTransitionManager::ExitTransition
86                 && isRunning())
87             return false;
88 
89         if (m_transitionState != QDeclarativeGeoMapItemTransitionManager::ExitTransition) {
90             m_transitionState = QDeclarativeGeoMapItemTransitionManager::ExitTransition;
91         }
92         return true;
93     }
finalizeEnterTransition()94     void finalizeEnterTransition()
95     {
96         m_transitionState = QDeclarativeGeoMapItemTransitionManager::NoTransition;
97         // use invokeMethod since this is used on both QDeclarativeGeoMapItemBase and QDeclarativeGeoMapItemGroup
98         QMetaObject::invokeMethod(m_mapItem, QByteArrayLiteral("addTransitionFinished").constData(), Qt::DirectConnection);
99     }
finalizeExitTransition()100     void finalizeExitTransition()
101     {
102 //        setVisible(false);
103         m_transitionState = QDeclarativeGeoMapItemTransitionManager::NoTransition;
104         QMetaObject::invokeMethod(m_mapItem, QByteArrayLiteral("removeTransitionFinished").constData(), Qt::DirectConnection);
105     }
106 
107 protected:
108     void finished() override;
109 
110 public:
111     QObject *m_mapItem;
112     QDeclarativeGeoMapItemView *m_view = nullptr;
113     QList<QQuickStateAction> enterActions;
114     QList<QQuickStateAction> exitActions;
115     TransitionState m_transitionState = NoTransition;
116 };
117 
118 QT_END_NAMESPACE
119 
120 #endif
121