doc/src/snippets/code/doc_src_properties.qdoc
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the documentation of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
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    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //! [0]
       
    43 Q_PROPERTY(type name
       
    44            READ getFunction
       
    45            [WRITE setFunction]
       
    46            [RESET resetFunction]
       
    47            [NOTIFY notifySignal]
       
    48            [DESIGNABLE bool]
       
    49            [SCRIPTABLE bool]
       
    50            [STORED bool]
       
    51 	   [USER bool]
       
    52            [CONSTANT]
       
    53            [FINAL])
       
    54 //! [0]
       
    55 
       
    56 
       
    57 //! [1]
       
    58 Q_PROPERTY(bool focus READ hasFocus)
       
    59 Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled)
       
    60 Q_PROPERTY(QCursor cursor READ cursor WRITE setCursor RESET unsetCursor)
       
    61 //! [1]
       
    62 
       
    63 
       
    64 //! [2]
       
    65 Q_PROPERTY(QDate date READ getDate WRITE setDate)
       
    66 //! [2]
       
    67 
       
    68 
       
    69 //! [3]
       
    70 QPushButton *button = new QPushButton;
       
    71 QObject *object = button;
       
    72 
       
    73 button->setDown(true);
       
    74 object->setProperty("down", true);
       
    75 //! [3]
       
    76 
       
    77 
       
    78 //! [4]
       
    79 QObject *object = ...
       
    80 const QMetaObject *metaobject = object->metaObject();
       
    81 int count = metaobject->propertyCount();
       
    82 for (int i=0; i<count; ++i) {
       
    83     QMetaProperty metaproperty = metaobject->property(i);
       
    84     const char *name = metaproperty.name();
       
    85     QVariant value = object->property(name);
       
    86     ...
       
    87 }
       
    88 //! [4]
       
    89 
       
    90 
       
    91 //! [5]
       
    92 class MyClass : public QObject
       
    93 {
       
    94     Q_OBJECT
       
    95     Q_PROPERTY(Priority priority READ priority WRITE setPriority)
       
    96     Q_ENUMS(Priority)
       
    97 
       
    98 public:
       
    99     MyClass(QObject *parent = 0);
       
   100     ~MyClass();
       
   101 
       
   102     enum Priority { High, Low, VeryHigh, VeryLow };
       
   103 
       
   104     void setPriority(Priority priority);
       
   105     Priority priority() const;
       
   106 };
       
   107 //! [5]
       
   108 
       
   109 
       
   110 //! [6]
       
   111 MyClass *myinstance = new MyClass;
       
   112 QObject *object = myinstance;
       
   113 
       
   114 myinstance->setPriority(MyClass::VeryHigh);
       
   115 object->setProperty("priority", "VeryHigh");
       
   116 //! [6]
       
   117 
       
   118 
       
   119 //! [7]
       
   120 Q_CLASSINFO("Version", "3.0.0")
       
   121 //! [7]