MyWidgetPlugin.h

#pragma once

#include <QObject>
#include <QtPlugin>  // for Q_PLUGIN_METADATA and Q_EXPORT_PLUGIN2
#include <QDesignerCustomWidgetInterface>

class MyWidgetPlugin : public QObject, public QDesignerCustomWidgetInterface
{
    Q_OBJECT
#if QT_VERSION >= 0x050000
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
#endif
    Q_INTERFACES(QDesignerCustomWidgetInterface)

public:
    MyWidgetPlugin(QObject *parent = 0);
    virtual ~MyWidgetPlugin();

    bool isContainer() const;
    bool isInitialized() const;
    QIcon icon() const;
    QString domXml() const;
    QString group() const;
    QString includeFile() const;
    QString name() const;
    QString toolTip() const;
    QString whatsThis() const;
    QWidget* createWidget(QWidget *parent);
    void initialize(QDesignerFormEditorInterface *core);

private:
    bool initialized; 
};