I iter for a QList with while with this code:
QList<Job> jobsList;
jobsList = job.getJobs(650, 654);
QListIterator<Job> iterJobs(jobsList);
while(iterJobs.hasNext())
{
job = iterJobs.next();
qDebug() << "IdJob " << job.jobId();
qDebug() << "jobType " << job.jobType();
}
and all fine but How can I to make whith foreach?
Thanks you very much
foreach (Job const& job, jobsList) {
qDebug() << "IdJob " << job.jobId();
qDebug() << "jobType " << job.jobType();
}
foreach (Job job, jobsList)
{
qDebug() << "IdJob " << job.jobId();
qDebug() << "jobType " << job.jobType();
}
Related
I'm able to catch requested urls by installing custom request interceptor butQWebEngineUrlRequestInfo contains only urls. Is it also possible to catch content which is return by those requests?
void RequestInterceptor::interceptRequest(QWebEngineUrlRequestInfo &info)
{
qDebug() << "IN " << info.requestMethod().toStdString().data() << " " << info.initiator().toString();
qDebug() << "FP " << info.requestMethod().toStdString().data() << " " << info.firstPartyUrl().toString();
qDebug() << "RL " << info.requestMethod().toStdString().data() << " " << info.requestUrl().toString();
}
I got this code from a book. When I ran on Visual Studio, it said to switch strcpy() to strcpy_s(), and after I did that, it seems the program terminated at the delete pointer. I tried to run on Dev-C++, and it works fine. Anyone knows why? Thank you.
#include "pch.h"
#include <iostream>
#include <cstring>
int main()
{
cout << "Enter a kind of animal: ";
cin >> animal; // ok if input < 20 chars
ps = animal; // set ps to point to string
cout << ps << "!\n"; // ok, same as using animal
cout << "Before using strcpy():\n";
cout << animal << " at " << (int *)animal << endl;
cout << ps << " at " << (int *)ps << endl;
ps = new char[strlen(animal) + 1]; // get new storage
strcpy_s(ps, sizeof(animal), animal); // copy string to new storage
cout << "After using strcpy():\n";
cout << animal << " at " << (int *)animal << endl;
cout << ps << " at " << (int *)ps << endl;
delete[] ps;
return 0;
}
I have this function :
bool TCPClient::sendPacket(Protocol::Packet &packet)
{
if(this->tcpSocket->state() == QAbstractSocket::ConnectedState)
{
std::cout << "writing ..." << std::endl;
std::cout << sizeof(BabelPacket) + packet.dataLength << std::endl;
this->tcpSocket->write((const char *)&packet, sizeof(Protocol::BabelPacket) + packet.dataLength);
return this->tcpSocket->waitForBytesWritten(-1);
}
else
{
std::cout << "socket close" << std::endl;
return false;
}
}
But when I called it, it blocks my GUI.
Have you got an idea how I can make this call non blocking, and still have the readyRead signal triggered ?
Thanks
I have multiples DNS record (MX, CNAME , TXT) and I would like to read the TXT record content.
The lookup() function never emit finished(), I am using this code to test:
QDnsLookup m_dns = new QDnsLookup(this);
connect(m_dns, SIGNAL(finished()), this, SLOT(onHandle()));
m_dns->setType(QDnsLookup::TXT);
m_dns->setName("uol.com.br");
m_dns->lookup();
void Update::onHandle()
{
if (m_dns->error() != QDnsLookup::NoError)
qDebug() << m_dns->error() << m_dns->errorString();
foreach (const QDnsServiceRecord &record, m_dns->serviceRecords())
qDebug() << "Name: " << record.name();
emit handled();
}
If I use a online service to read the record, it works!
The onHandle slot should be looking at m_dns->textRecords(), not m_dns->serviceRecords().
The correct code:
foreach (const QDnsTextRecord &record , m_dns->textRecords()) {
qDebug() << "Values: " << record.values();
qDebug() << "Name: " << record.name();
}
I have two list of images to be downloaded from network. I use qnetworkaccessmanager to get image from url. But on the reply slot there is no image data with the reply. :( I am not able to figure out where am I going wrong.. If someone is able to figure out, it would be helpful :)
void SyncDialog::getImages()
{
qDebug() << Q_FUNC_INFO << "Invoked";
int groupMasterCount = mSyncMasterData.groupMasterList.count();
qDebug() << Q_FUNC_INFO << "groupmastercout" << groupMasterCount;
for (int i = 0 ; i < groupMasterCount; ++i)
{
GroupMaster groupItem = mSyncMasterData.groupMasterList.at(i);
QNetworkReply *reply =
mImageGetNwMgr.get(QNetworkRequest(QUrl(groupItem.image)));
reply->setProperty("name", QVariant("G_" + groupItem.groupCode));
connect(reply, SIGNAL(readyRead()), this, SLOT(saveImage()));
qDebug() << Q_FUNC_INFO << "get call reply" << reply->readAll();
qDebug() << Q_FUNC_INFO << "get url" << groupItem.image;
mSyncMasterData.groupMasterList[i].image.clear();
#ifdef Q_OS_WIN
mSyncMasterData.groupMasterList[i].image = "C:/POS/Images/G_"
+groupItem.groupCode;
#else
mSyncMasterData.groupMasterList[i].image = "/mnt/sdcard/POS/Images/G_"
+groupItem.groupCode;
#endif
}
int itemMasterCount = mSyncMasterData.itemMasterList.count();
qDebug() << Q_FUNC_INFO << "itemmastercout" << itemMasterCount;
for (int i = 0 ; i < itemMasterCount; ++i)
{
ItemMaster item = mSyncMasterData.itemMasterList.at(i);
QNetworkReply *reply =
mImageGetNwMgr.get(QNetworkRequest(QUrl(item.imagePath)));
reply->setProperty("name", QVariant("I_" + item.itemCode));
connect(reply, SIGNAL(readyRead()), this, SLOT(saveImage()));
qDebug() << Q_FUNC_INFO << "get call reply" << reply->readAll();
qDebug() << Q_FUNC_INFO << "get url" << item.imagePath;
mSyncMasterData.itemMasterList[i].imagePath.clear();
#ifdef Q_OS_WIN
mSyncMasterData.itemMasterList[i].imagePath = "C:/POS/Images/I_"
+item.itemCode;
#else
mSyncMasterData.itemMasterList[i].imagePath = "/mnt/sdcard/POS/Images/G_"
+item.itemCode;
#endif
}
qDebug() << Q_FUNC_INFO << "Exits";
}
In my slot I save images , but in reply->readAll gives me ""
void SyncDialog::saveImage()
{
qDebug() << Q_FUNC_INFO << "Invoked";
QObject *senderObj = sender();
QNetworkReply *reply = qobject_cast<QNetworkReply*>(senderObj);
QImage* img2 = new QImage();
img2->loadFromData(reply->readAll());
qDebug() << Q_FUNC_INFO << "image nw reply" << reply->readAll();
QString imageName = reply->property("name").toString();
qDebug() << Q_FUNC_INFO << "imageName" << imageName;
if(img2->isNull())
{
qDebug() << Q_FUNC_INFO << "image is null";
return;
}
#ifdef Q_OS_WIN
img2->save("C:/POS/Images/" + imageName);
#else
img2->save("/mnt/sdcard/POS/Images/" + imageName);
#endif
qDebug() << Q_FUNC_INFO << "Exits";
}
Also I see in logs "libpng error: Read Error" and the slot is invoked multiple times...
Thanks all,
I resolved the issue with few changes :)
connect(reply, SIGNAL(finished()), this, SLOT(saveImage()));
finished() makes sure complete image data is received from n/w.
QByteArray imageData = reply->readAll();
QImage *image = new QImage();
image->loadFromData(imageData);
reply->readAll() should be saved as first call clears the data after returning it.
image->save("C:/POS/Images/" + imageName + ".png"
don't forget to specify image format (either in filename or as parameter)