added viewable condition to all updates to gain CPU

git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.4.x@1825 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/ForumsDialog.cpp

@@ -241,6 +241,9 @@ void ForumsDialog::togglefileview()
 
 void ForumsDialog::checkUpdate()
 {
+	if(!isVisible())
+		return ;
+
 	std::list<std::string> forumIds;
 	std::list<std::string>::iterator it;
 	if (!rsForums)

retroshare-gui/src/gui/MainWindow.cpp

@@ -339,6 +339,8 @@ MainWindow::MainWindow(QWidget* parent, Qt::WFlags flags)
 
 void MainWindow::updateStatus()
 {
+	if(!isVisible())
+		return ;
 	
 	if (ratesstatus)
     	ratesstatus->getRatesStatus();
@@ -508,6 +510,8 @@ void MainWindow::doQuit()
 
 		if ((QMessageBox::question(this, tr("Really quit ? "),queryWrn,QMessageBox::Ok|QMessageBox::No, QMessageBox::Ok))== QMessageBox::Ok)
 		{
+			delete rsicontrol ;
+			delete rsiface ;
       qApp->quit();
 		}
 		else

retroshare-gui/src/gui/NetworkDialog.cpp

@@ -692,6 +692,9 @@ void NetworkDialog::getNetworkStatus()
 
 void NetworkDialog::updateNetworkStatus()
 {
+	if(!isVisible())
+		return ;
+
     rsiface->lockData(); /* Lock Interface */
 
     /* now the extra bit .... switch on check boxes */

retroshare-gui/src/gui/PeersDialog.cpp

@@ -226,6 +226,9 @@ void PeersDialog::peertreeWidgetCostumPopupMenu( QPoint point )
 /* get the list of peers from the RsIface.  */
 void  PeersDialog::insertPeers()
 {
+	if(!isVisible())
+		return ;
+
 	std::list<std::string> peers;
 	std::list<std::string>::iterator it;