How to read each line of a QPlainTextEdit in Qt? - qt

Question

I want to make a program where I take each line of QPlainTextEdit and send it to a WebView which will load those urls. I don't need to check the URL's because the system makes it like that
http://someurl.com/ + each line of the QPlainTextEdit
I have few ideas which I don't know how to use:
Use a foreach loop which will make its self wait 5 seconds to loop again
Make a QTimer to wait like 5 seconds and tick with an integer and when the integer hits the number of lines it will stop
And all of that will be done on every 4 hours by waiting with another timer.

Answer 1

First of all you need the contents of the QPlainTextEdit. Get them and split them using the new line separator to get a list of QStrings each representing a line.
QString plainTextEditContents = ui->plainTextEdit->toPlainText()
QStringList lines = plainTextEditContents.split("\n");
The easiest way to process the lines is to use a QTimer and store somewhere the current index in the list.
// Start the timer
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(processLine()));
timer->start(5000);
Now the slot is called whenever the timer is triggered. It just gets the current line and you do it whatever you want.
void processLine(){
// This is the current index in the string list. If we have reached the end
// then we stop the timer.
currentIndex ++;
if (currentIndex == lines.count())
{
timer.stop();
currentIndex = 0;
return;
}
QString currentLine = lines[currentIndex];
doSomethingWithTheLine(currentLine);
}
Similarly do the same with the 4h timer.