Qt 4.8
qdeclarativecomponent.h
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41 
42 #ifndef QDECLARATIVECOMPONENT_H
43 #define QDECLARATIVECOMPONENT_H
44 
45 #include <QtDeclarative/qdeclarative.h>
46 #include <QtDeclarative/qdeclarativeerror.h>
47 
48 #include <QtCore/qobject.h>
49 #include <QtCore/qstring.h>
50 #include <QtScript/qscriptvalue.h>
51 
53 
55 
56 QT_MODULE(Declarative)
57 
59 class QByteArray;
61 class QDeclarativeEngine;
64 {
65  Q_OBJECT
67 
68  qreal progress;
70  QUrl url;
71 
72 public:
73  QDeclarativeComponent(QObject *parent = 0);
75  QDeclarativeComponent(QDeclarativeEngine *, const QString &fileName, QObject *parent = 0);
76  QDeclarativeComponent(QDeclarativeEngine *, const QUrl &url, QObject *parent = 0);
77  virtual ~QDeclarativeComponent();
78 
80  enum Status { Null, Ready, Loading, Error };
81  Status status() const;
82 
83  bool isNull() const;
84  bool isReady() const;
85  bool isError() const;
86  bool isLoading() const;
87 
88  QList<QDeclarativeError> errors() const;
90 
91  qreal progress() const;
92 
93  QUrl url() const;
94 
95  virtual QObject *create(QDeclarativeContext *context = 0);
96  virtual QObject *beginCreate(QDeclarativeContext *);
97  virtual void completeCreate();
98 
99  void loadUrl(const QUrl &url);
100  void setData(const QByteArray &, const QUrl &baseUrl);
101 
102  QDeclarativeContext *creationContext() const;
103 
104  static QDeclarativeComponentAttached *qmlAttachedProperties(QObject *);
105 
106 Q_SIGNALS:
107  void statusChanged(QDeclarativeComponent::Status);
108  void progressChanged(qreal);
109 
110 protected:
112  Q_INVOKABLE QScriptValue createObject(QObject* parent);
113  Q_INVOKABLE Q_REVISION(1) QScriptValue createObject(QObject* parent, const QScriptValue& valuemap); //XXX Versioning
114 
115 private:
117 
120  friend class QDeclarativeCompositeTypeData;
122 };
123 
125 
129 
131 
132 #endif // QDECLARATIVECOMPONENT_H
Error
Definition: qaudio.h:58
Status
Emitted after component "startup" has completed.
double qreal
Definition: qglobal.h:1193
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QML_DECLARE_TYPE(TYPE)
Definition: qdeclarative.h:56
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
The QByteArray class provides an array of bytes.
Definition: qbytearray.h:135
static Expression::Ptr create(Expression *const expr, const YYLTYPE &sourceLocator, const ParserContext *const parseInfo)
#define Q_INVOKABLE
Definition: qobjectdefs.h:90
static LibLoadStatus status
Definition: qlocale_icu.cpp:69
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
The QUrl class provides a convenient interface for working with URLs.
Definition: qurl.h:61
The QString class provides a Unicode character string.
Definition: qstring.h:83
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
#define Q_SIGNALS
Definition: qobjectdefs.h:72
Q_GUI_EXPORT QString errorString(EGLint code=eglGetError())
Definition: qegl.cpp:743
#define Q_ENUMS(x)
Definition: qobjectdefs.h:84
#define QML_DECLARE_TYPEINFO(TYPE, FLAGS)
Definition: qdeclarative.h:73
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QDeclarativeComponent class encapsulates a QML component definition.
static bool setData(const QByteArray &data, STGMEDIUM *pmedium)
Definition: qmime_win.cpp:141
#define Q_OBJECT
Definition: qobjectdefs.h:157
#define Q_DECLARE_METATYPE(TYPE)
This macro makes the type Type known to QMetaType as long as it provides a public default constructor...
Definition: qmetatype.h:265
#define Q_DECLARATIVE_EXPORT
Definition: qglobal.h:1454
The QDeclarativeEngine class provides an environment for instantiating QML components.
The QDeclarativeContext class defines a context within a QML engine.
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
#define class
#define QT_END_HEADER
Definition: qglobal.h:137
The QScriptValue class acts as a container for the Qt Script data types.
Definition: qscriptvalue.h:57
static QString fileName(const QString &fileUrl)
static bool isNull(const QVariant::Private *d)
Definition: qvariant.cpp:300