// Validate connection / prevent loopbacks
// If valid, apply
// Return result
public bool AddConnection( SynthGraphEditorGraphConnection connection )
{
if ( ValidateConnection( connection ) )
{
DataNode.SetSourceNode( connection.m_from.DataNode, connection.m_toSlot );
return true;
}
return false;
}
public SynthGraphEditorGraphWindow( int windowId, string windowTitle, Rect windowRect )
: base(windowId, windowTitle, windowRect)
{
m_graphCache = new Dictionary<ISynthGraphNode, NodeGUIBase>();
m_floatingSelection = new Dictionary<ISynthGraphNode, NodeGUIBase>();
NodeGUIBase.OnNodeConnectorSelected += HandleNodeConnectorSelected;
m_cursorConnection = new SynthGraphEditorGraphConnection();
m_connectionCache = new List<SynthGraphEditorGraphConnection>();
SetDirty( true );
}
private void CacheConnection( ISynthGraphNode node )
{
ISynthGraphNode[] inputs = node.GetSourceNodes();
for( int i = 0; i < inputs.Length; i++ )
{
if ( inputs[ i ] != null )
{
SynthGraphEditorGraphConnection connection = new SynthGraphEditorGraphConnection();
connection.SetFrom( GetGUIForNode( inputs[ i ] ) );
connection.SetTo( GetGUIForNode( node ), i );
m_connectionCache.Add( connection );
CacheConnection( inputs[ i ] );
}
}
}
void HandleNodeConnectorSelected(NodeGUIBase node, int connectorIndex, NodeGUIBase.NodeConnectorType connectorType)
{
switch( connectorType )
{
case NodeGUIBase.NodeConnectorType.DATA_IN:
m_cursorConnection.SetTo( node, connectorIndex );
break;
case NodeGUIBase.NodeConnectorType.DATA_OUT:
m_cursorConnection.SetFrom( node );
break;
}
switch( m_cursorConnection.State )
{
case SynthGraphEditorGraphConnection.ConnectionState.NO_CONNECTED:
SetRequiresContiniousUpdates( false );
break;
case SynthGraphEditorGraphConnection.ConnectionState.CONNECTING:
SetRequiresContiniousUpdates( true );
break;
case SynthGraphEditorGraphConnection.ConnectionState.CONNECTED:
SetRequiresContiniousUpdates( false );
if ( m_cursorConnection.m_to.AddConnection( m_cursorConnection ) )
{
SetDirty( true );
}
m_cursorConnection = new SynthGraphEditorGraphConnection();
break;
}
}
private bool ValidateConnection( SynthGraphEditorGraphConnection connection )
{
if ( connection.m_from.DataNode == DataNode )
{
return false; // Loopback
}
if ( connection.m_toSlot >= DataNode.GetSourceCount() )
{
return false; // Out of input range
}
return true;
}