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39
40#ifndef QT3DCORE_QSERVICELOCATOR_H
41#define QT3DCORE_QSERVICELOCATOR_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <Qt3DCore/qt3dcore_global.h>
55#include <QtCore/qobject.h>
56#include <QtCore/qscopedpointer.h>
57
58QT_BEGIN_NAMESPACE
59
60namespace Qt3DCore {
61
62class QAbstractServiceProviderPrivate;
63
64class Q_3DCORESHARED_EXPORT QAbstractServiceProvider : public QObject
65{
66 Q_OBJECT
67public:
68 virtual ~QAbstractServiceProvider();
69
70 int type() const;
71 QString description() const;
72
73protected:
74 explicit QAbstractServiceProvider(int type, const QString &description, QObject* parent = nullptr);
75 explicit QAbstractServiceProvider(QAbstractServiceProviderPrivate &dd, QObject* parent = nullptr);
76
77private:
78 Q_DISABLE_COPY(QAbstractServiceProvider)
79 Q_DECLARE_PRIVATE(QAbstractServiceProvider)
80};
81
82class QAbstractFrameAdvanceService;
83class QOpenGLInformationService;
84class QSystemInformationService;
85class QServiceLocatorPrivate;
86class QEventFilterService;
87class QDownloadHelperService;
88class QAspectEngine;
89
90class Q_3DCORESHARED_EXPORT QServiceLocator
91{
92public:
93 QServiceLocator(QAspectEngine *aspectEngine = nullptr);
94 ~QServiceLocator();
95
96 enum ServiceType {
97 SystemInformation,
98 OpenGLInformation,
99 CollisionService,
100 FrameAdvanceService,
101 EventFilterService,
102 DownloadHelperService,
103#if !defined(Q_QDOC)
104 DefaultServiceCount, // Add additional default services before here
105#endif
106 UserService = 256
107 };
108
109 void registerServiceProvider(int serviceType, QAbstractServiceProvider *provider);
110 void unregisterServiceProvider(int serviceType);
111
112 int serviceCount() const;
113
114 template<class T>
115 T *service(int serviceType)
116 {
117 QAbstractServiceProvider *service_ = _q_getServiceHelper(type: serviceType);
118 return static_cast<T *>(service_);
119 }
120
121 // Convenience accessors for Qt3D provided services
122 QSystemInformationService *systemInformation();
123 QOpenGLInformationService *openGLInformation();
124 QAbstractFrameAdvanceService *frameAdvanceService();
125 QEventFilterService *eventFilterService();
126 QDownloadHelperService *downloadHelperService();
127
128private:
129 Q_DISABLE_COPY(QServiceLocator)
130 Q_DECLARE_PRIVATE(QServiceLocator)
131 QScopedPointer<QServiceLocatorPrivate> d_ptr;
132
133 QAbstractServiceProvider *_q_getServiceHelper(int type);
134};
135
136}
137
138QT_END_NAMESPACE
139
140#endif // QT3DCORE_QSERVICELOCATOR_H
141

source code of qt3d/src/core/services/qservicelocator_p.h