QHttp of QT Assistant example

[marcel]

I think you can see when the download actually starts if you hook to the dataReadProgress signal.
When you first receive this signal then it means that the first chunk has been donwloaded.

To display some text I suggest using QTimer.
I cannot give you an example since I am not sure it would work. Just a draft, maybe:

in constructor:
mTimer = new QTimer();
mTimer->setInterval(1000); //1 second;
mStringList << "message1";
mStringList << "message2";
mStringList << "message3";
mStringList << "message4";
connect(mTimer, SIGNAL(timeout()), this, SLOT(cycleMessages()));
connect(downloadButton, SIGNAL(clicked()), mTimer, SLOT(start())); //start the timer when download is pressed
 
this is the timer slot:
void HttpWindow::cycleMessages()
{
 int msgIndex = mStringList.indexOf(firstLabel->text());
 if(msgIndex < 0 )
  msgIndex = 0;
 else
  msgIndex++;
if(msgIndex >= mStringList.count())
  msgIndex = 0;
 
firstLabel->setText(mStringList.at(msgIndex);
}
 
void HttpWindow::updateDataReadProgress(int bytesRead, int totalBytes)
{
...
mTimer->stop();
}

in constructor:
mTimer = new QTimer();
mTimer->setInterval(1000); //1 second;
mStringList << "message1";
mStringList << "message2";
mStringList << "message3";
mStringList << "message4";
connect(mTimer, SIGNAL(timeout()), this, SLOT(cycleMessages()));
connect(downloadButton, SIGNAL(clicked()), mTimer, SLOT(start())); //start the timer when download is pressed

this is the timer slot:
void HttpWindow::cycleMessages()
{
 int msgIndex = mStringList.indexOf(firstLabel->text());
 if(msgIndex < 0 )
  msgIndex = 0;
 else
  msgIndex++;
if(msgIndex >= mStringList.count())
  msgIndex = 0;

firstLabel->setText(mStringList.at(msgIndex);
}

void HttpWindow::updateDataReadProgress(int bytesRead, int totalBytes)
{
...
mTimer->stop();
}

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So there you will have a label that just displays those 4 messages in a cycle. The message is switched every second.
When it reaches the end of the list, it starts again from the beginning.

mTimer is a QTimer* member.
mStringList is a QStringList member.
firstLabel is a QLabel* member.



Make sure to delete the QTimer in the destructor.

Regards

[thomasjoy]

but do tell me it is not be connected as on the download button Http example had put the another signal that is downloadFile() which get started as we click it
so on one button two slot how we can put??