qt-everywhere-src-5.14.1/qtconnectivity/examples/nfc/ndefeditor/mainwindow.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2017 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtNfc module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** BSD License Usage
 ** Alternatively, you may use this file under the terms of the BSD license
 ** as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "mainwindow.h"
 #include "ui_mainwindow.h"

 #include "textrecordeditor.h"
 #include "urirecordeditor.h"
 #include "mimeimagerecordeditor.h"

 #include <QtNfc/qndefnfcurirecord.h>
 #include <QtNfc/qndefnfctextrecord.h>
 #include <QtNfc/qndefrecord.h>
 #include <QtNfc/qndefmessage.h>
 #include <QtNfc/qnearfieldmanager.h>
 #include <QtNfc/qnearfieldtarget.h>

 #include <QtWidgets/QMenu>
 #include <QtWidgets/QVBoxLayout>
 #include <QtWidgets/QFrame>
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QFileDialog>

 class EmptyRecordLabel : public QLabel
 {
     Q_OBJECT

 public:
     EmptyRecordLabel() : QLabel(tr("Empty Record")) { }
     ~EmptyRecordLabel() { }

     void setRecord(const QNdefRecord &record)
     {
         Q_UNUSED(record);
     }

     QNdefRecord record() const
     {
         return QNdefRecord();
     }
 };

 class UnknownRecordLabel : public QLabel
 {
     Q_OBJECT

 public:
     UnknownRecordLabel() : QLabel(tr("Unknown Record Type")) { }
     ~UnknownRecordLabel() { }

     void setRecord(const QNdefRecord &record) { m_record = record; }
     QNdefRecord record() const { return m_record; }

 private:
     QNdefRecord m_record;
 };

 template <typename T>
 void addRecord(Ui::MainWindow *ui, const QNdefRecord &record = QNdefRecord())
 {
     QVBoxLayout *vbox = qobject_cast<QVBoxLayout *>(ui->scrollAreaWidgetContents->layout());
     if (!vbox)
         return;

     if (!vbox->isEmpty()) {
         QFrame *hline = new QFrame;
         hline->setFrameShape(QFrame::HLine);
         hline->setObjectName(QStringLiteral("line-spacer"));

         vbox->addWidget(hline);
     }

     T *recordEditor = new T;
     recordEditor->setObjectName(QStringLiteral("record-editor"));

     if (!record.isEmpty())
         recordEditor->setRecord(record);

     vbox->addWidget(recordEditor);
 }

 MainWindow::MainWindow(QWidget *parent)
 :   QMainWindow(parent), ui(new Ui::MainWindow), m_touchAction(NoAction)
 {
     ui->setupUi(this);

     QMenu *addRecordMenu = new QMenu(this);
     addRecordMenu->addAction(tr("NFC Text Record"), this, SLOT(addNfcTextRecord()));
     addRecordMenu->addAction(tr("NFC URI Record"), this, SLOT(addNfcUriRecord()));
     addRecordMenu->addAction(tr("MIME Image Record"), this, SLOT(addMimeImageRecord()));
     addRecordMenu->addAction(tr("Empty Record"), this, SLOT(addEmptyRecord()));
     ui->addRecord->setMenu(addRecordMenu);

     QVBoxLayout *vbox = new QVBoxLayout;
     ui->scrollAreaWidgetContents->setLayout(vbox);

     //! [QNearFieldManager init]
     m_manager = new QNearFieldManager(this);
     connect(m_manager, &QNearFieldManager::targetDetected,
             this, &MainWindow::targetDetected);
     connect(m_manager, &QNearFieldManager::targetLost,
             this, &MainWindow::targetLost);
     //! [QNearFieldManager init]
 }

 MainWindow::~MainWindow()
 {
     delete ui;
 }

 void MainWindow::addNfcTextRecord()
 {
     addRecord<TextRecordEditor>(ui);
 }

 void MainWindow::addNfcUriRecord()
 {
     addRecord<UriRecordEditor>(ui);
 }

 void MainWindow::addMimeImageRecord()
 {
     addRecord<MimeImageRecordEditor>(ui);
 }

 void MainWindow::addEmptyRecord()
 {
     addRecord<EmptyRecordLabel>(ui);
 }

 void MainWindow::loadMessage()
 {
     QString filename = QFileDialog::getOpenFileName(this, tr("Select NDEF Message"));
     if (filename.isEmpty())
         return;

     QFile file(filename);
     if (!file.open(QIODevice::ReadOnly))
         return;

     QByteArray ndef = file.readAll();

     ndefMessageRead(QNdefMessage::fromByteArray(ndef));

     file.close();
 }

 void MainWindow::saveMessage()
 {
     QString filename = QFileDialog::getSaveFileName(this, tr("Select NDEF Message"));
     if (filename.isEmpty())
         return;

     QFile file(filename);
     if (!file.open(QIODevice::WriteOnly))
         return;

     file.write(ndefMessage().toByteArray());

     file.close();
 }

 void MainWindow::touchReceive()
 {
     ui->status->setStyleSheet(QStringLiteral("background: blue"));

     m_touchAction = ReadNdef;

     m_manager->setTargetAccessModes(QNearFieldManager::NdefReadTargetAccess);
     //! [QNearFieldManager start detection]
     m_manager->startTargetDetection();
     //! [QNearFieldManager start detection]
 }

 void MainWindow::touchStore()
 {
     ui->status->setStyleSheet(QStringLiteral("background: yellow"));

     m_touchAction = WriteNdef;

     m_manager->setTargetAccessModes(QNearFieldManager::NdefWriteTargetAccess);
     m_manager->startTargetDetection();
 }

 //! [QNearFieldTarget detected]
 void MainWindow::targetDetected(QNearFieldTarget *target)
 {
     switch (m_touchAction) {
     case NoAction:
         break;
     case ReadNdef:
         connect(target, &QNearFieldTarget::ndefMessageRead, this, &MainWindow::ndefMessageRead);
         connect(target, &QNearFieldTarget::error, this, &MainWindow::targetError);

         m_request = target->readNdefMessages();
         if (!m_request.isValid()) // cannot read messages
             targetError(QNearFieldTarget::NdefReadError, m_request);
         break;
     case WriteNdef:
         connect(target, &QNearFieldTarget::ndefMessagesWritten, this, &MainWindow::ndefMessageWritten);
         connect(target, &QNearFieldTarget::error, this, &MainWindow::targetError);

         m_request = target->writeNdefMessages(QList<QNdefMessage>() << ndefMessage());
         if (!m_request.isValid()) // cannot write messages
             targetError(QNearFieldTarget::NdefWriteError, m_request);
         break;
     }
 }
 //! [QNearFieldTarget detected]

 //! [QNearFieldTarget lost]
 void MainWindow::targetLost(QNearFieldTarget *target)
 {
     target->deleteLater();
 }
 //! [QNearFieldTarget lost]

 void MainWindow::ndefMessageRead(const QNdefMessage &message)
 {
     clearMessage();

     for (const QNdefRecord &record : message) {
         if (record.isRecordType<QNdefNfcTextRecord>()) {
             addRecord<TextRecordEditor>(ui, record);
         } else if (record.isRecordType<QNdefNfcUriRecord>()) {
             addRecord<UriRecordEditor>(ui, record);
         } else if (record.typeNameFormat() == QNdefRecord::Mime &&
                    record.type().startsWith("image/")) {
             addRecord<MimeImageRecordEditor>(ui, record);
         } else if (record.isEmpty()) {
             addRecord<EmptyRecordLabel>(ui);
         } else {
             addRecord<UnknownRecordLabel>(ui, record);
         }
     }

     ui->status->setStyleSheet(QString());
     m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
     //! [QNearFieldManager stop detection]
     m_manager->stopTargetDetection();
     //! [QNearFieldManager stop detection]
     m_request = QNearFieldTarget::RequestId();
     ui->statusBar->clearMessage();
 }

 void MainWindow::ndefMessageWritten()
 {
     ui->status->setStyleSheet(QString());
     m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
     m_manager->stopTargetDetection();
     m_request = QNearFieldTarget::RequestId();
     ui->statusBar->clearMessage();
 }

 void MainWindow::targetError(QNearFieldTarget::Error error, const QNearFieldTarget::RequestId &id)
 {
     Q_UNUSED(error);
     Q_UNUSED(id);

     if (m_request == id) {
         switch (error) {
         case QNearFieldTarget::NoError:
             ui->statusBar->clearMessage();
             break;
         case QNearFieldTarget::UnsupportedError:
             ui->statusBar->showMessage(tr("Unsupported tag"));
             break;
         case QNearFieldTarget::TargetOutOfRangeError:
             ui->statusBar->showMessage(tr("Tag removed from field"));
             break;
         case QNearFieldTarget::NoResponseError:
             ui->statusBar->showMessage(tr("No response from tag"));
             break;
         case QNearFieldTarget::ChecksumMismatchError:
             ui->statusBar->showMessage(tr("Checksum mismatch"));
             break;
         case QNearFieldTarget::InvalidParametersError:
             ui->statusBar->showMessage(tr("Invalid parameters"));
             break;
         case QNearFieldTarget::NdefReadError:
             ui->statusBar->showMessage(tr("NDEF read error"));
             break;
         case QNearFieldTarget::NdefWriteError:
             ui->statusBar->showMessage(tr("NDEF write error"));
             break;
         default:
             ui->statusBar->showMessage(tr("Unknown error"));
         }

         ui->status->setStyleSheet(QString());
         m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
         m_manager->stopTargetDetection();
         m_request = QNearFieldTarget::RequestId();
     }
 }

 void MainWindow::clearMessage()
 {
     QWidget *scrollArea = ui->scrollAreaWidgetContents;

     qDeleteAll(scrollArea->findChildren<QWidget *>(QStringLiteral("line-spacer")));
     qDeleteAll(scrollArea->findChildren<QWidget *>(QStringLiteral("record-editor")));
 }

 QNdefMessage MainWindow::ndefMessage() const
 {
     QVBoxLayout *vbox = qobject_cast<QVBoxLayout *>(ui->scrollAreaWidgetContents->layout());
     if (!vbox)
         return QNdefMessage();

     QNdefMessage message;

     for (int i = 0; i < vbox->count(); ++i) {
         QWidget *widget = vbox->itemAt(i)->widget();

         if (TextRecordEditor *editor = qobject_cast<TextRecordEditor *>(widget)) {
             message.append(editor->record());
         } else if (UriRecordEditor *editor = qobject_cast<UriRecordEditor *>(widget)) {
             message.append(editor->record());
         } else if (MimeImageRecordEditor *editor = qobject_cast<MimeImageRecordEditor *>(widget)) {
             message.append(editor->record());
         } else if (qobject_cast<EmptyRecordLabel *>(widget)) {
             message.append(QNdefRecord());
         } else if (UnknownRecordLabel *label = qobject_cast<UnknownRecordLabel *>(widget)) {
             message.append(label->record());
         }
     }

     return message;
 }

 #include "mainwindow.moc"
	/****************************************************************************
	**
	** Copyright (C) 2017 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part of the QtNfc module of the Qt Toolkit.
	**
	** $QT_BEGIN_LICENSE:BSD$
	** Commercial License Usage
	** Licensees holding valid commercial Qt licenses may use this file in
	** accordance with the commercial license agreement provided with the
	** Software or, alternatively, in accordance with the terms contained in
	** a written agreement between you and The Qt Company. For licensing terms
	** and conditions see https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/contact-us.
	**
	** BSD License Usage
	** Alternatively, you may use this file under the terms of the BSD license
	** as follows:
	**
	** "Redistribution and use in source and binary forms, with or without
	** modification, are permitted provided that the following conditions are
	** met:
	** * Redistributions of source code must retain the above copyright
	** notice, this list of conditions and the following disclaimer.
	** * Redistributions in binary form must reproduce the above copyright
	** notice, this list of conditions and the following disclaimer in
	** the documentation and/or other materials provided with the
	** distribution.
	** * Neither the name of The Qt Company Ltd nor the names of its
	** contributors may be used to endorse or promote products derived
	** from this software without specific prior written permission.
	**
	**
	** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
	**
	** $QT_END_LICENSE$
	**
	****************************************************************************/

	#include "mainwindow.h"
	#include "ui_mainwindow.h"

	#include "textrecordeditor.h"
	#include "urirecordeditor.h"
	#include "mimeimagerecordeditor.h"

	#include <QtNfc/qndefnfcurirecord.h>
	#include <QtNfc/qndefnfctextrecord.h>
	#include <QtNfc/qndefrecord.h>
	#include <QtNfc/qndefmessage.h>
	#include <QtNfc/qnearfieldmanager.h>
	#include <QtNfc/qnearfieldtarget.h>

	#include <QtWidgets/QMenu>
	#include <QtWidgets/QVBoxLayout>
	#include <QtWidgets/QFrame>
	#include <QtWidgets/QLabel>
	#include <QtWidgets/QFileDialog>

	class EmptyRecordLabel : public QLabel
	{
	Q_OBJECT

	public:
	EmptyRecordLabel() : QLabel(tr("Empty Record")) { }
	~EmptyRecordLabel() { }

	void setRecord(const QNdefRecord &record)
	{
	Q_UNUSED(record);
	}

	QNdefRecord record() const
	{
	return QNdefRecord();
	}
	};

	class UnknownRecordLabel : public QLabel
	{
	Q_OBJECT

	public:
	UnknownRecordLabel() : QLabel(tr("Unknown Record Type")) { }
	~UnknownRecordLabel() { }

	void setRecord(const QNdefRecord &record) { m_record = record; }
	QNdefRecord record() const { return m_record; }

	private:
	QNdefRecord m_record;
	};

	template <typename T>
	void addRecord(Ui::MainWindow *ui, const QNdefRecord &record = QNdefRecord())
	{
	QVBoxLayout vbox = qobject_cast<QVBoxLayout >(ui->scrollAreaWidgetContents->layout());
	if (!vbox)
	return;

	if (!vbox->isEmpty()) {
	QFrame *hline = new QFrame;
	hline->setFrameShape(QFrame::HLine);
	hline->setObjectName(QStringLiteral("line-spacer"));

	vbox->addWidget(hline);
	}

	T *recordEditor = new T;
	recordEditor->setObjectName(QStringLiteral("record-editor"));

	if (!record.isEmpty())
	recordEditor->setRecord(record);

	vbox->addWidget(recordEditor);
	}

	MainWindow::MainWindow(QWidget *parent)
	: QMainWindow(parent), ui(new Ui::MainWindow), m_touchAction(NoAction)
	{
	ui->setupUi(this);

	QMenu *addRecordMenu = new QMenu(this);
	addRecordMenu->addAction(tr("NFC Text Record"), this, SLOT(addNfcTextRecord()));
	addRecordMenu->addAction(tr("NFC URI Record"), this, SLOT(addNfcUriRecord()));
	addRecordMenu->addAction(tr("MIME Image Record"), this, SLOT(addMimeImageRecord()));
	addRecordMenu->addAction(tr("Empty Record"), this, SLOT(addEmptyRecord()));
	ui->addRecord->setMenu(addRecordMenu);

	QVBoxLayout *vbox = new QVBoxLayout;
	ui->scrollAreaWidgetContents->setLayout(vbox);

	//! [QNearFieldManager init]
	m_manager = new QNearFieldManager(this);
	connect(m_manager, &QNearFieldManager::targetDetected,
	this, &MainWindow::targetDetected);
	connect(m_manager, &QNearFieldManager::targetLost,
	this, &MainWindow::targetLost);
	//! [QNearFieldManager init]
	}

	MainWindow::~MainWindow()
	{
	delete ui;
	}

	void MainWindow::addNfcTextRecord()
	{
	addRecord<TextRecordEditor>(ui);
	}

	void MainWindow::addNfcUriRecord()
	{
	addRecord<UriRecordEditor>(ui);
	}

	void MainWindow::addMimeImageRecord()
	{
	addRecord<MimeImageRecordEditor>(ui);
	}

	void MainWindow::addEmptyRecord()
	{
	addRecord<EmptyRecordLabel>(ui);
	}

	void MainWindow::loadMessage()
	{
	QString filename = QFileDialog::getOpenFileName(this, tr("Select NDEF Message"));
	if (filename.isEmpty())
	return;

	QFile file(filename);
	if (!file.open(QIODevice::ReadOnly))
	return;

	QByteArray ndef = file.readAll();

	ndefMessageRead(QNdefMessage::fromByteArray(ndef));

	file.close();
	}

	void MainWindow::saveMessage()
	{
	QString filename = QFileDialog::getSaveFileName(this, tr("Select NDEF Message"));
	if (filename.isEmpty())
	return;

	QFile file(filename);
	if (!file.open(QIODevice::WriteOnly))
	return;

	file.write(ndefMessage().toByteArray());

	file.close();
	}

	void MainWindow::touchReceive()
	{
	ui->status->setStyleSheet(QStringLiteral("background: blue"));

	m_touchAction = ReadNdef;

	m_manager->setTargetAccessModes(QNearFieldManager::NdefReadTargetAccess);
	//! [QNearFieldManager start detection]
	m_manager->startTargetDetection();
	//! [QNearFieldManager start detection]
	}

	void MainWindow::touchStore()
	{
	ui->status->setStyleSheet(QStringLiteral("background: yellow"));

	m_touchAction = WriteNdef;

	m_manager->setTargetAccessModes(QNearFieldManager::NdefWriteTargetAccess);
	m_manager->startTargetDetection();
	}

	//! [QNearFieldTarget detected]
	void MainWindow::targetDetected(QNearFieldTarget *target)
	{
	switch (m_touchAction) {
	case NoAction:
	break;
	case ReadNdef:
	connect(target, &QNearFieldTarget::ndefMessageRead, this, &MainWindow::ndefMessageRead);
	connect(target, &QNearFieldTarget::error, this, &MainWindow::targetError);

	m_request = target->readNdefMessages();
	if (!m_request.isValid()) // cannot read messages
	targetError(QNearFieldTarget::NdefReadError, m_request);
	break;
	case WriteNdef:
	connect(target, &QNearFieldTarget::ndefMessagesWritten, this, &MainWindow::ndefMessageWritten);
	connect(target, &QNearFieldTarget::error, this, &MainWindow::targetError);

	m_request = target->writeNdefMessages(QList<QNdefMessage>() << ndefMessage());
	if (!m_request.isValid()) // cannot write messages
	targetError(QNearFieldTarget::NdefWriteError, m_request);
	break;
	}
	}
	//! [QNearFieldTarget detected]

	//! [QNearFieldTarget lost]
	void MainWindow::targetLost(QNearFieldTarget *target)
	{
	target->deleteLater();
	}
	//! [QNearFieldTarget lost]

	void MainWindow::ndefMessageRead(const QNdefMessage &message)
	{
	clearMessage();

	for (const QNdefRecord &record : message) {
	if (record.isRecordType<QNdefNfcTextRecord>()) {
	addRecord<TextRecordEditor>(ui, record);
	} else if (record.isRecordType<QNdefNfcUriRecord>()) {
	addRecord<UriRecordEditor>(ui, record);
	} else if (record.typeNameFormat() == QNdefRecord::Mime &&
	record.type().startsWith("image/")) {
	addRecord<MimeImageRecordEditor>(ui, record);
	} else if (record.isEmpty()) {
	addRecord<EmptyRecordLabel>(ui);
	} else {
	addRecord<UnknownRecordLabel>(ui, record);
	}
	}

	ui->status->setStyleSheet(QString());
	m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
	//! [QNearFieldManager stop detection]
	m_manager->stopTargetDetection();
	//! [QNearFieldManager stop detection]
	m_request = QNearFieldTarget::RequestId();
	ui->statusBar->clearMessage();
	}

	void MainWindow::ndefMessageWritten()
	{
	ui->status->setStyleSheet(QString());
	m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
	m_manager->stopTargetDetection();
	m_request = QNearFieldTarget::RequestId();
	ui->statusBar->clearMessage();
	}

	void MainWindow::targetError(QNearFieldTarget::Error error, const QNearFieldTarget::RequestId &id)
	{
	Q_UNUSED(error);
	Q_UNUSED(id);

	if (m_request == id) {
	switch (error) {
	case QNearFieldTarget::NoError:
	ui->statusBar->clearMessage();
	break;
	case QNearFieldTarget::UnsupportedError:
	ui->statusBar->showMessage(tr("Unsupported tag"));
	break;
	case QNearFieldTarget::TargetOutOfRangeError:
	ui->statusBar->showMessage(tr("Tag removed from field"));
	break;
	case QNearFieldTarget::NoResponseError:
	ui->statusBar->showMessage(tr("No response from tag"));
	break;
	case QNearFieldTarget::ChecksumMismatchError:
	ui->statusBar->showMessage(tr("Checksum mismatch"));
	break;
	case QNearFieldTarget::InvalidParametersError:
	ui->statusBar->showMessage(tr("Invalid parameters"));
	break;
	case QNearFieldTarget::NdefReadError:
	ui->statusBar->showMessage(tr("NDEF read error"));
	break;
	case QNearFieldTarget::NdefWriteError:
	ui->statusBar->showMessage(tr("NDEF write error"));
	break;
	default:
	ui->statusBar->showMessage(tr("Unknown error"));
	}

	ui->status->setStyleSheet(QString());
	m_manager->setTargetAccessModes(QNearFieldManager::NoTargetAccess);
	m_manager->stopTargetDetection();
	m_request = QNearFieldTarget::RequestId();
	}
	}

	void MainWindow::clearMessage()
	{
	QWidget *scrollArea = ui->scrollAreaWidgetContents;

	qDeleteAll(scrollArea->findChildren<QWidget *>(QStringLiteral("line-spacer")));
	qDeleteAll(scrollArea->findChildren<QWidget *>(QStringLiteral("record-editor")));
	}

	QNdefMessage MainWindow::ndefMessage() const
	{
	QVBoxLayout vbox = qobject_cast<QVBoxLayout >(ui->scrollAreaWidgetContents->layout());
	if (!vbox)
	return QNdefMessage();

	QNdefMessage message;

	for (int i = 0; i < vbox->count(); ++i) {
	QWidget *widget = vbox->itemAt(i)->widget();

	if (TextRecordEditor editor = qobject_cast<TextRecordEditor >(widget)) {
	message.append(editor->record());
	} else if (UriRecordEditor editor = qobject_cast<UriRecordEditor >(widget)) {
	message.append(editor->record());
	} else if (MimeImageRecordEditor editor = qobject_cast<MimeImageRecordEditor >(widget)) {
	message.append(editor->record());
	} else if (qobject_cast<EmptyRecordLabel *>(widget)) {
	message.append(QNdefRecord());
	} else if (UnknownRecordLabel label = qobject_cast<UnknownRecordLabel >(widget)) {
	message.append(label->record());
	}
	}

	return message;
	}

	#include "mainwindow.moc"