wait copy picture then show it

[raphaelf]

Hi wysota,

Thanks for your answer..

How could i make that? Have you a example for me?

[wysota]

Split your code. One part of it should contain operations to be performed before the download is finished. The other (it should be a slot) should contain operations to be started after the download will have finished. Then at the end of the first part you can use QUrlOperator and connect the second part to its finished() signal. When the download is finished, the slot will be called and your code will continue its job.

[raphaelf]

Hi wysota, i think i have understand now,

but my function test will never called why?

void MainWindow::showPicure()
{
	ui.label->clear();
	QString src =  (ui.listView->currentItem() )->text( 4 );
	QFileInfo file(src);
  	if(file.isReadable() == true)
  		{
 
	  		Q3UrlOperator *op = new Q3UrlOperator();                       
	  		QString temp_picture = "c:/temp/temp_album.jpg";  
			op->copy(src, temp_picture, false, false);     
			connect(op, SIGNAL(finished()), this, SLOT(test())); 
			ui.picture_lb->setText("");
  		}
  		else
  		{
	  		ui.picture_lb->setText("No Picture");
	  		ui.label->clear();
  		}
}
void MainWindow::test()
{
	ui.label->setPixmap(QPixmap("c:/temp/temp_album.jpg"));
 
}

void MainWindow::showPicure()
{
	ui.label->clear();
	QString src =  (ui.listView->currentItem() )->text( 4 );
	QFileInfo file(src);
  	if(file.isReadable() == true)
  		{
	  		
	  		Q3UrlOperator *op = new Q3UrlOperator();                       
	  		QString temp_picture = "c:/temp/temp_album.jpg";  
			op->copy(src, temp_picture, false, false);     
			connect(op, SIGNAL(finished()), this, SLOT(test())); 
			ui.picture_lb->setText("");
  		}
  		else
  		{
	  		ui.picture_lb->setText("No Picture");
	  		ui.label->clear();
  		}
}
void MainWindow::test()
{
	ui.label->setPixmap(QPixmap("c:/temp/temp_album.jpg"));
	
}

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[jpn]

but my function test will never called why?

The signature of the signals is: finished(Q3NetworkOperation*) so it should be something like:

connect(op, SIGNAL(finished(Q3NetworkOperation*)), this, SLOT(test()));

connect(op, SIGNAL(finished(Q3NetworkOperation*)), this, SLOT(test()));

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[raphaelf]

Thanks JPN and Wysota it works