annotatedurl.cpp Example File
annotatedurl/annotatedurl.cpp
#include "annotatedurl.h"
#include <qnearfieldtarget.h>
#include <qndefmessage.h>
#include <qndefrecord.h>
#include <qndefnfctextrecord.h>
#include <qndefnfcurirecord.h>
#include <QtCore/QUrl>
#include <QtCore/QLocale>
#include <QtGui/QGridLayout>
#include <QtGui/QLabel>
#include <QtGui/QMouseEvent>
#include <QtGui/QDesktopServices>
AnnotatedUrl::AnnotatedUrl(QWidget *parent)
: QWidget(parent)
{
QGridLayout *grid = new QGridLayout;
m_image = new QLabel;
grid->addWidget(m_image, 0, 0, 2, 1, Qt::AlignCenter);
m_title = new QLabel;
QFont titleFont = m_title->font();
titleFont.setBold(true);
m_title->setFont(titleFont);
grid->addWidget(m_title, 0, 1);
m_url = new QLabel;
grid->addWidget(m_url, 1, 1);
setLayout(grid);
}
AnnotatedUrl::~AnnotatedUrl()
{
}
void AnnotatedUrl::targetDetected(const QNdefMessage &message, QNearFieldTarget *target)
{
Q_UNUSED(target);
displayNdefMessage(message);
}
void AnnotatedUrl::targetDetected(QNearFieldTarget *target)
{
if (!target->hasNdefMessage())
return;
connect(target, SIGNAL(ndefMessageRead(QNdefMessage)),
this, SLOT(displayNdefMessage(QNdefMessage)));
target->readNdefMessages();
}
void AnnotatedUrl::targetLost(QNearFieldTarget *target)
{
target->deleteLater();
}
void AnnotatedUrl::mouseReleaseEvent(QMouseEvent *event)
{
if (rect().contains(event->pos()))
QDesktopServices::openUrl(QUrl(m_url->text()));
}
void AnnotatedUrl::displayNdefMessage(const QNdefMessage &message)
{
enum {
MatchedNone,
MatchedFirst,
MatchedEnglish,
MatchedLanguage,
MatchedLanguageAndCountry
} bestMatch = MatchedNone;
m_title->clear();
m_url->clear();
m_image->clear();
QLocale defaultLocale;
foreach (const QNdefRecord &record, message) {
if (record.isRecordType<QNdefNfcTextRecord>()) {
QNdefNfcTextRecord textRecord(record);
QLocale locale(textRecord.locale());
if (bestMatch == MatchedLanguageAndCountry) {
} else if (bestMatch <= MatchedLanguage && locale == defaultLocale) {
m_title->setText(textRecord.text());
bestMatch = MatchedLanguageAndCountry;
} else if (bestMatch <= MatchedEnglish &&
locale.language() == defaultLocale.language()) {
m_title->setText(textRecord.text());
bestMatch = MatchedLanguage;
} else if (bestMatch <= MatchedFirst && locale.language() == QLocale::English) {
m_title->setText(textRecord.text());
bestMatch = MatchedEnglish;
} else if (bestMatch == MatchedNone) {
m_title->setText(textRecord.text());
bestMatch = MatchedFirst;
}
} else if (record.isRecordType<QNdefNfcUriRecord>()) {
QNdefNfcUriRecord uriRecord(record);
m_url->setText(uriRecord.uri().toString());
} else if (record.typeNameFormat() == QNdefRecord::Mime &&
record.type().startsWith("image/")) {
m_image->setPixmap(QPixmap::fromImage(QImage::fromData(record.payload())));
}
}
}