From 1fca5db8d71539d2621064a0f756f128970736ac Mon Sep 17 00:00:00 2001
From: Manuel Schneider
Date: Tue, 27 May 2014 14:56:47 +0200
Subject: Unite BC and MC. Reducing complexity

---
 src/server/mainwindow/mainwindow.cpp | 79 ++++++++++++++----------------------
 1 file changed, 30 insertions(+), 49 deletions(-)

(limited to 'src/server/mainwindow/mainwindow.cpp')

diff --git a/src/server/mainwindow/mainwindow.cpp b/src/server/mainwindow/mainwindow.cpp
index 11071f6..5fdf3db 100644
--- a/src/server/mainwindow/mainwindow.cpp
+++ b/src/server/mainwindow/mainwindow.cpp
@@ -56,7 +56,7 @@ MainWindow::MainWindow(QString ipListUrl, QWidget* parent) :
 
 	_tutorFrame = NULL;
 	_selectedFrame = NULL;
-	_mode = Mode::Idle;
+	_mode = Mode::Multicast;
 	_streamingSource = NULL;
 
 	_sessionNameWindow = new SessionNameWindow(this);
@@ -434,56 +434,37 @@ bool MainWindow::isValidClient(Client* client)
 	return false;
 }
 
-
 /***************************************************************************//**
- * @brief broadcast
- * @param from
- */
-void MainWindow::broadcast(Client *from)
-{
-	_mode = Mode::Broadcast;
-
-	// if there is a server running which is not "from" stop it.
-	if (_streamingSource != NULL && _streamingSource != from)
-		_streamingSource->stopVncServer();
-	_streamingSource = from;
-
-	// Server must not listen to anybody
-	_streamingSource->stopVncClient();
-
-	// Set desired projection source on all clients, if not "from" or oflline
-	for (QList<ConnectionFrame*>::iterator it(_clientFrames.begin()); it != _clientFrames.end(); ++it)
-		if ((*it)->client() != NULL && (*it)->client() != _streamingSource)
-			_watchers.insert((*it)->client()->id(), (*it)->client());
-
-	if (_streamingSource->isActiveVncServer())
-		// From is already active
-		this->onVncServerStateChange(_streamingSource);
-	else
-		// Could not take shortcut, start VNC server on source
-		_streamingSource->startVncServer();
-}
-
-
-/***************************************************************************//**
- * @brief MainWindow::unicast
+ * @brief MainWindow::changeProjection
  * @param from
+ * @param mode
  * @param to
- * @param blockOthers
  */
-void MainWindow::multicast(Client *from, Client *to, bool blockOthers)
+void MainWindow::changeProjection(Client *from, Mode mode, Client *to)
 {
-	// If first call in this mode clear the watchers
-	if (_mode != (blockOthers ? Mode::LockedMulticast : Mode::Multicast)) {
-		_watchers.clear();
-		_mode = blockOthers ? Mode::LockedMulticast : Mode::Multicast;
+	if (mode == Mode::Broadcast)
+	{
+		// Set all clients as watchers
+		for (QList<ConnectionFrame*>::iterator it(_clientFrames.begin()); it != _clientFrames.end(); ++it)
+			if ((*it)->client() != NULL && (*it)->client() != _streamingSource)
+				_watchers.insert((*it)->client()->id(), (*it)->client());
+	}
+	else // mode != Mode::Broadcast
+	{
+		// If this is the first call in this mode clear the watchers
+		if ((mode == Mode::LockedMulticast && _mode != Mode::LockedMulticast)
+			|| (mode == Mode::Multicast && _mode != Mode::Multicast))
+			_watchers.clear();
+
+		// If "to" already watches "from" stop it
+		if (_watchers.contains(to->id()))
+			_watchers.remove(to->id());
+		else // list "to" as watcher
+			_watchers.insert(to->id(), to);
 	}
 
-	// If already watching drop it
-	if (_watchers.contains(to->id()))
-		_watchers.remove(to->id());
-	else // List "to" as watcher
-		_watchers.insert(to->id(), to);
+	// Set the mode
+	_mode = mode;
 
 	// if there is a server running which is not "from" stop it.
 	if (_streamingSource != NULL && _streamingSource != from)
@@ -519,7 +500,7 @@ void MainWindow::onButtonTutorToAll()
 	else if (_tutorFrame->client() == NULL)
 		QMessageBox::critical(this, tr("Projection"), sStrTutorOffline);
 	else
-		broadcast(_tutorFrame->client());
+		changeProjection(_tutorFrame->client(), Mode::Broadcast);
 }
 
 /***************************************************************************//**
@@ -534,7 +515,7 @@ void MainWindow::onButtonStudentToAll()
 	if (_selectedFrame->client() == NULL)
 		QMessageBox::critical(this, tr("Projection"), sStrSourceOffline);
 	else
-		broadcast(_selectedFrame->client());
+		changeProjection(_selectedFrame->client(), Mode::Broadcast);
 }
 
 /***************************************************************************//**
@@ -554,7 +535,7 @@ void MainWindow::onButtonTutorToStudent()
 	else if (_tutorFrame->client() == NULL)
 		QMessageBox::critical(this, tr("Projection"), sStrTutorOffline);
 	else
-		multicast(_tutorFrame->client(), _selectedFrame->client());
+		changeProjection(_tutorFrame->client(), Mode::Multicast, _selectedFrame->client());
 }
 
 /***************************************************************************//**
@@ -574,7 +555,7 @@ void MainWindow::onButtonStudentToTutor()
 	else if (_tutorFrame->client() == NULL)
 		QMessageBox::critical(this, tr("Projection"), sStrTutorOffline);
 	else
-		multicast(_selectedFrame->client(), _tutorFrame->client());
+		changeProjection(_selectedFrame->client(), Mode::Multicast, _tutorFrame->client());
 }
 
 
@@ -594,7 +575,7 @@ void MainWindow::onButtonStudentToTutorExclusive()
 	else if (_tutorFrame->client() == NULL)
 		QMessageBox::critical(this, tr("Projection"), sStrTutorOffline);
 	else
-		multicast(_tutorFrame->client(), _selectedFrame->client(), true);
+		changeProjection(_tutorFrame->client(), Mode::LockedMulticast, _selectedFrame->client());
 }
 
 
-- 
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