Qt 4.8
qdeclarativeboundsignal_p.h
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41 
42 #ifndef QDECLARATIVEBOUNDSIGNAL_P_H
43 #define QDECLARATIVEBOUNDSIGNAL_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include "qdeclarativeexpression.h"
57 #include "qdeclarativeguard_p.h"
58 
59 #include <QtCore/qmetaobject.h>
60 
61 #include <private/qobject_p.h>
62 
64 
66 {
67  Q_OBJECT
68 public:
71  virtual void disconnect() = 0;
72 
73 protected slots:
74  virtual void unregisterScopeObject() = 0;
75 };
76 
79 {
80 public:
81  QDeclarativeBoundSignal(QObject *scope, const QMetaMethod &signal, QObject *parent);
83  const QMetaMethod &signal, QObject *parent);
84  virtual ~QDeclarativeBoundSignal();
85 
86  void disconnect();
87 
88  int index() const;
89 
90  QDeclarativeExpression *expression() const;
92 
93  bool isEvaluating() const { return m_isEvaluating; }
94 
96 
97 protected:
98  void unregisterScopeObject();
99  virtual int qt_metacall(QMetaObject::Call c, int id, void **a);
100 
101 private:
102  class ScopeGuard : public QDeclarativeGuard<QObject>
103  {
104  public:
106  : QDeclarativeGuard<QObject>(object), m_signal(signal)
107  {
108  }
109 
111  Q_UNUSED(obj);
112  m_signal->unregisterScopeObject();
113  }
114 
115  private:
117  };
118 
119  void init(QObject *parent);
120 
123  bool m_paramsValid : 1;
124  bool m_isEvaluating : 1;
127 };
128 
130 
131 #endif // QDECLARATIVEBOUNDSIGNAL_P_H
unsigned char c[8]
Definition: qnumeric_p.h:62
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
long ASN1_INTEGER_get ASN1_INTEGER * a
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
QDeclarativeBoundSignalParameters * m_params
QDeclarativeExpression * m_expression
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
static bool init
#define Q_OBJECT
Definition: qobjectdefs.h:157
ScopeGuard(QObject *object, QDeclarativeBoundSignal *signal)
virtual void unregisterScopeObject()=0
QObject * parent() const
Returns a pointer to the parent object.
Definition: qobject.h:273
The QDeclarativeContext class defines a context within a QML engine.
quint16 index
The QDeclarativeExpression class evaluates JavaScript in a QML context.
#define slots
Definition: qobjectdefs.h:68
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729
The QMetaMethod class provides meta-data about a member function.
Definition: qmetaobject.h:56