Qt 4.0: main.cpp Example File (activeqt/simple/main.cpp)

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# main.cpp Example File
activeqt/simple/main.cpp

        /****************************************************************************
        **
        ** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
    ** sales department at sales@trolltech.com.
        **
        ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        **
        ****************************************************************************/

        #include <qapplication.h>
        #include <qlayout.h>
        #include <qslider.h>
        #include <qlcdnumber.h>
        #include <qlineedit.h>
        #include <qmessagebox.h>

        #include <qaxbindable.h>
        #include <qaxfactory.h>

        class QSimpleAX : public QWidget, public QAxBindable
        {
            Q_OBJECT
            Q_PROPERTY( QString text READ text WRITE setText )
            Q_PROPERTY( int value READ value WRITE setValue )
        public:
            QSimpleAX(QWidget *parent = 0)
            : QWidget(parent)
            {
                QVBoxLayout *vbox = new QVBoxLayout( this );

                slider = new QSlider( Qt::Horizontal, this );
                LCD = new QLCDNumber( 3, this );
                edit = new QLineEdit( this );

                connect( slider, SIGNAL( valueChanged( int ) ), this, SLOT( setValue(int) ) );
                connect( edit, SIGNAL(textChanged(const QString&)), this, SLOT(setText(const QString&)) );

                vbox->addWidget( slider );
                vbox->addWidget( LCD );
                vbox->addWidget( edit );
            }

            QString text() const
            {
                return edit->text();
            }
            int value() const
            {
                return slider->value();
            }

        signals:
            void someSignal();
            void valueChanged(int);
            void textChanged(const QString&);

        public slots:
            void setText( const QString &string )
            {
                if ( !requestPropertyChange( "text" ) )
                    return;

                edit->blockSignals( TRUE );
                edit->setText( string );
                edit->blockSignals( FALSE );
                emit someSignal();
                emit textChanged( string );

                propertyChanged( "text" );
            }
            void about()
            {
                QMessageBox::information( this, "About QSimpleAX", "This is a Qt widget, and this slot has been\n"
                                                                  "called through ActiveX/OLE automation!" );
            }
            void setValue( int i )
            {
                if ( !requestPropertyChange( "value" ) )
                    return;
                slider->blockSignals( TRUE );
                slider->setValue( i );
                slider->blockSignals( FALSE );
                LCD->display( i );
                emit valueChanged( i );

                propertyChanged( "value" );
            }

        private:
            QSlider *slider;
            QLCDNumber *LCD;
            QLineEdit *edit;
        };

        #include "main.moc"

        QAXFACTORY_DEFAULT(QSimpleAX,
                   "{DF16845C-92CD-4AAB-A982-EB9840E74669}",
                   "{616F620B-91C5-4410-A74E-6B81C76FFFE0}",
                   "{E1816BBA-BF5D-4A31-9855-D6BA432055FF}",
                   "{EC08F8FC-2754-47AB-8EFE-56A54057F34E}",
                   "{A095BA0C-224F-4933-A458-2DD7F6B85D8F}")