doc/src/snippets/qlabel/main.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the documentation of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtGui>
       
    43 
       
    44 class Updater : public QObject
       
    45 {
       
    46     Q_OBJECT
       
    47 
       
    48 public:
       
    49     Updater(QWidget *widget);
       
    50 
       
    51 public slots:
       
    52     void adjustSize();
       
    53 
       
    54 private:
       
    55     QWidget *widget;
       
    56 };
       
    57 
       
    58 Updater::Updater(QWidget *widget)
       
    59     : widget(widget)
       
    60 {
       
    61 }
       
    62 
       
    63 void Updater::adjustSize()
       
    64 {
       
    65     widget->adjustSize();
       
    66 }
       
    67 
       
    68 int main(int argc, char *argv[])
       
    69 {
       
    70     QApplication app(argc, argv);
       
    71     QLabel *label = new QLabel("My label");
       
    72     QLineEdit *editor = new QLineEdit("New text");
       
    73     QWidget window;
       
    74     //Updater updater(&label);
       
    75     QObject::connect(editor, SIGNAL(textChanged(const QString &)),
       
    76                      label, SLOT(setText(const QString &)));
       
    77     //QObject::connect(editor, SIGNAL(textChanged(const QString &)),
       
    78     //                 &updater, SLOT(adjustSize()));
       
    79     //editor.show();
       
    80     //label.show();
       
    81     QVBoxLayout *layout = new QVBoxLayout;
       
    82     layout->addWidget(label);
       
    83     layout->addWidget(editor);
       
    84     window.setLayout(layout);
       
    85     window.show();
       
    86     return app.exec();
       
    87 }
       
    88 
       
    89 #include "main.moc"