Qt 4.3: main.cpp Example File (activeqt/simple/main.cpp)

|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

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

     /****************************************************************************
     **
     ** Copyright (C) 1992-2008 Trolltech ASA. 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 versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
    ** included in the packaging of this file.  Alternatively you may (at
    ** your option) use any later version of the GNU General Public
    ** License if such license has been publicly approved by Trolltech ASA
    ** (or its successors, if any) and the KDE Free Qt Foundation. In
    ** addition, as a special exception, Trolltech gives you certain
    ** additional rights. These rights are described in the Trolltech GPL
    ** Exception version 1.2, which can be found at
    ** http://www.trolltech.com/products/qt/gplexception/ and in the file
    ** GPL_EXCEPTION.txt in this package.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
    ** you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** In addition, as a special exception, Trolltech, as the sole
    ** copyright holder for Qt Designer, grants users of the Qt/Eclipse
    ** Integration plug-in the right for the Qt/Eclipse Integration to
    ** link to functionality provided by Qt Designer and its related
    ** libraries.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
    ** granted herein.
     **
     ** 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 <QAxBindable>
     #include <QAxFactory>
     #include <QApplication>
     #include <QLayout>
     #include <QSlider>
     #include <QLCDNumber>
     #include <QLineEdit>
     #include <QMessageBox>

     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}")