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    41 

    42 #include <QtDeclarative/QDeclarativeExtensionPlugin>

    43 #include <QtDeclarative/qdeclarative.h>

    44 #include <QtGui/QGraphicsProxyWidget>

    45 #include <QtGui/QPushButton>

    46 #include <QDebug>

    47 

    48 class MyPushButton : public QGraphicsProxyWidget

    49 {

    50     Q_OBJECT

    51     Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)

    52 

    53 public:

    54     MyPushButton(QGraphicsItem* parent = 0)

    55         : QGraphicsProxyWidget(parent)

    56     {

    57         widget = new QPushButton("MyPushButton");

    58         widget->setAttribute(Qt::WA_NoSystemBackground);

    59         setWidget(widget);

    60 

    61         QObject::connect(widget, SIGNAL(clicked(bool)), this, SIGNAL(clicked(bool)));

    62     }

    63 

    64     QString text() const

    65     {

    66         return widget->text();

    67     }

    68 

    69     void setText(const QString& text)

    70     {

    71         if (text != widget->text()) {

    72             widget->setText(text);

    73             emit textChanged();

    74         }

    75     }

    76 

    77 Q_SIGNALS:

    78     void clicked(bool);

    79     void textChanged();

    80 

    81 private:

    82     QPushButton *widget;

    83 };

    84 

    85 class QWidgetsPlugin : public QDeclarativeExtensionPlugin

    86 {

    87     Q_OBJECT

    88 public:

    89     void registerTypes(const char *uri)

    90     {

    91         qmlRegisterType<MyPushButton>(uri, 1, 0, "MyPushButton");

    92     }

    93 };

    94 

    95 #include "qwidgets.moc"

    96 

    97 Q_EXPORT_PLUGIN2(qwidgetsplugin, QWidgetsPlugin);