mainwindow.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
#include <QtWidgets>
 
#include "dragwidget.h"
#include "mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    QFrame *centralWidget = new QFrame(this);
 
    QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), centralWidget);
    mimeTypeCombo = new QComboBox(centralWidget);
 
    QLabel *dataLabel = new QLabel(tr("Amount of data (bytes):"), centralWidget);
    dragWidget = new DragWidget(centralWidget);
 
    connect(dragWidget, &DragWidget::mimeTypes,
            this, &MainWindow::setMimeTypes);
    connect(dragWidget, &DragWidget::dragResult,
            this, &MainWindow::setDragResult);
 
    QVBoxLayout *mainLayout = new QVBoxLayout(centralWidget);
    mainLayout->addWidget(mimeTypeLabel);
    mainLayout->addWidget(mimeTypeCombo);
    mainLayout->addSpacing(32);
    mainLayout->addWidget(dataLabel);
    mainLayout->addWidget(dragWidget);
 
    statusBar();
    dragWidget->setData(QString("text/plain"), QByteArray("Hello world"));
    setCentralWidget(centralWidget);
    setWindowTitle(tr("Drag and Drop"));
}
 
void MainWindow::setDragResult(const QString &actionText)
{
    statusBar()->showMessage(actionText);
}
 
void MainWindow::setMimeTypes(const QStringList &types)
{
    mimeTypeCombo->clear();
    mimeTypeCombo->addItems(types);
}