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

imagescaling.h Example File
qtconcurrent/imagescaling/imagescaling.h

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information ([email protected])
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain
 ** additional rights. These rights are described in the Nokia Qt LGPL
 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
 ** package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you are unsure which license is appropriate for your use, please
 ** contact the sales department at [email protected].
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
 #ifndef IMAGESCALING_H
 #define IMAGESCALING_H

 #include <QtGui>

 #ifndef QT_NO_CONCURRENT

 class Images : public QWidget
 {
 Q_OBJECT
 public:
     Images(QWidget *parent = 0);
     ~Images();
 public Q_SLOTS:
     void open();
     void showImage(int num);
     void finished();
 private:
     QPushButton *openButton;
     QPushButton *cancelButton;
     QPushButton *pauseButton;
     QVBoxLayout *mainLayout;
     QList<QLabel *> labels;
     QGridLayout *imagesLayout;
     QFutureWatcher<QImage> *imageScaling;
 };

 #else

 // Dummy class required because QT_NO_CONCURRENT is not set when moc is run.
 class Images : public QWidget
 {
 Q_OBJECT
 public Q_SLOTS:
     void open() {}
     void showImage(int) {}
     void finished() {}
 };

 #endif // QT_NO_CONCURRENT

 #endif // IMAGESCALING_H