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    41 

    42 #include <QtGui>

    43 

    44 #include "dragwidget.h"

    45 #include "mainwindow.h"

    46 

    47 MainWindow::MainWindow(QWidget *parent)

    48     : QMainWindow(parent)

    49 {

    50     QFrame *centralWidget = new QFrame(this);

    51 

    52     QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), centralWidget);

    53     mimeTypeCombo = new QComboBox(centralWidget);

    54 

    55     QLabel *dataLabel = new QLabel(tr("Amount of data (bytes):"), centralWidget);

    56     dragWidget = new DragWidget(centralWidget);

    57 

    58     connect(dragWidget, SIGNAL(mimeTypes(const QStringList &)),

    59             this, SLOT(setMimeTypes(const QStringList &)));

    60     connect(dragWidget, SIGNAL(dragResult(const QString &)),

    61             this, SLOT(setDragResult(const QString &)));

    62 

    63     QVBoxLayout *mainLayout = new QVBoxLayout(centralWidget);

    64     mainLayout->addWidget(mimeTypeLabel);

    65     mainLayout->addWidget(mimeTypeCombo);

    66     mainLayout->addSpacing(32);

    67     mainLayout->addWidget(dataLabel);

    68     mainLayout->addWidget(dragWidget);

    69 

    70     statusBar();

    71     dragWidget->setData(QString("text/plain"), QByteArray("Hello world"));

    72     setCentralWidget(centralWidget);

    73     setWindowTitle(tr("Drag and Drop"));

    74 }

    75 

    76 void MainWindow::setDragResult(const QString &actionText)

    77 {

    78     statusBar()->showMessage(actionText);

    79 }

    80 

    81 void MainWindow::setMimeTypes(const QStringList &types)

    82 {

    83     mimeTypeCombo->clear();

    84     mimeTypeCombo->addItems(types);

    85 }