/// <summary>
/// CONVERSION: Creates a NodeGraphLink, given an XML Serialized copy of the link and a view
/// </summary>
/// <param name="p_TreeNode"></param>
/// <param name="p_View"></param>
public NodeGraphLink(ConnectionDescriptor connection, NodeGraphView p_View)
{
int v_InputNodeId = connection.sourceModule;
int v_OutputNodeId = connection.destinationModule;
int v_InputNodeConnectorIdx = connection.sourcePort;
int v_OutputNodeConnectorIdx = connection.destinationPort;
if (v_InputNodeId != 0x0FFFFFFF)
{
//this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx];
this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].GetConnector(v_InputNodeConnectorIdx, ConnectorType.OutputConnector);
}
else
{
this.m_InputConnector = p_View.NodeConnectorCollection[v_InputNodeConnectorIdx];
}
if (v_OutputNodeId != 0x0FFFFFFF)
{
//this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].Connectors[v_OutputNodeConnectorIdx];
this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].GetConnector(v_OutputNodeConnectorIdx, ConnectorType.InputConnector);
}
else
{
this.m_OutputConnector = p_View.NodeConnectorCollection[v_OutputNodeConnectorIdx];
}
}
/// <summary>
/// CONVERSION: Creates a NodeGraphLink, given an XML Serialized copy of the link and a view
/// </summary>
/// <param name="p_TreeNode"></param>
/// <param name="p_View"></param>
public NodeGraphLink(ConnectionDescriptor connection, NodeGraphView p_View)
{
int v_InputNodeId = connection.sourceModule;
int v_OutputNodeId = connection.destinationModule;
int v_InputNodeConnectorIdx = connection.sourceModule;
int v_OutputNodeConnectorIdx = connection.sourcePort;
this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx];
this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].Connectors[v_OutputNodeConnectorIdx];
}
/// <summary>
/// SERIALIZATION: Creates a NodeGraphLink, given an XML Serialized copy of the link and a view
/// </summary>
/// <param name="p_TreeNode"></param>
/// <param name="p_View"></param>
public NodeGraphLink(XmlTreeNode p_TreeNode, NodeGraphView p_View)
{
int v_InputNodeId = int.Parse(p_TreeNode.m_attributes["InputNodeId"]);
int v_OutputNodeId = int.Parse(p_TreeNode.m_attributes["OutputNodeId"]);
int v_InputNodeConnectorIdx = int.Parse(p_TreeNode.m_attributes["InputNodeConnectorIdx"]);
int v_OutputNodeConnectorIdx = int.Parse(p_TreeNode.m_attributes["OutputNodeConnectorIdx"]);
this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx];
this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].Connectors[v_OutputNodeConnectorIdx];
}
/// <summary>
/// SERIALIZATION: Creates a NodeGraphLink, given an XML Serialized copy of the link and a view
/// </summary>
/// <param name="p_TreeNode"></param>
/// <param name="p_View"></param>
public NodeGraphLink(XmlTreeNode p_TreeNode, NodeGraphView p_View)
{
int v_InputNodeId = int.Parse(p_TreeNode.m_attributes["InputNodeId"]);
int v_OutputNodeId = int.Parse(p_TreeNode.m_attributes["OutputNodeId"]);
int v_InputNodeConnectorIdx = int.Parse(p_TreeNode.m_attributes["InputNodeConnectorIdx"]);
int v_OutputNodeConnectorIdx = int.Parse(p_TreeNode.m_attributes["OutputNodeConnectorIdx"]);
this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx];
this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].Connectors[v_OutputNodeConnectorIdx];
this.m_NodeGraphDataType = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx].DataType;
}
/// <summary>
/// Gets the connector index, given the connector object reference
/// </summary>
/// <param name="p_Connector">the connector reference</param>
/// <returns>the connector index</returns>
public int GetConnectorIndex(NodeGraphConnector p_Connector)
{
for (int i = 0; i < this.m_Connectors.Count; i++)
{
if (this.m_Connectors[i] == p_Connector)
{
return(i);
}
}
return(-1);
}
/// <summary>
/// Returns whether the node can be processed or not
/// </summary>
/// <returns></returns>
public bool CanProcess()
{
if (this.m_oConnectorType == ConnectorType.OutputConnector)
{
return(true);
}
else
{
NodeGraphConnector v_Connector = m_oView.ParentPanel.GetLink(this);
if (v_Connector == null)
{
return(false);
}
else
{
return(true);
}
}
}
/// <summary>
/// Virtual: Sample Process for a node, must be overriden in child class, processes only unlinked inputs.
/// </summary>
/// <returns>NodeGraphData depending of the validity</returns>
public virtual NodeGraphData Process()
{
if (this.m_oConnectorType == ConnectorType.OutputConnector)
{
return(m_oParentNode.Process());
}
else
{
NodeGraphConnector v_Connector = m_oView.ParentPanel.GetLink(this);
if (v_Connector == null)
{
return(new NodeGraphInvalidData(this.m_oParentNode, "Connector:" + this.Name + " NOT LINKED"));
}
else
{
return(v_Connector.Process());
}
}
}
/// <summary>
/// CONVERSION: Creates a NodeGraphLink, given an XML Serialized copy of the link and a view
/// </summary>
/// <param name="p_TreeNode"></param>
/// <param name="p_View"></param>
public NodeGraphLink(ConnectionDescriptor connection, NodeGraphView p_View)
{
int v_InputNodeId = connection.sourceModule;
int v_OutputNodeId = connection.destinationModule;
int v_InputNodeConnectorIdx = connection.sourcePort;
int v_OutputNodeConnectorIdx = connection.destinationPort;
if (v_InputNodeId != 0x0FFFFFFF)
{
//this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].Connectors[v_InputNodeConnectorIdx];
this.m_InputConnector = p_View.NodeCollection[v_InputNodeId].GetConnector(v_InputNodeConnectorIdx, ConnectorType.OutputConnector);
}
else
this.m_InputConnector = p_View.NodeConnectorCollection[v_InputNodeConnectorIdx];
if (v_OutputNodeId != 0x0FFFFFFF)
{
//this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].Connectors[v_OutputNodeConnectorIdx];
this.m_OutputConnector = p_View.NodeCollection[v_OutputNodeId].GetConnector(v_OutputNodeConnectorIdx, ConnectorType.InputConnector);
}
else
this.m_OutputConnector = p_View.NodeConnectorCollection[v_OutputNodeConnectorIdx];
}
/// <summary>
/// Deletes a link, given a connector
/// </summary>
/// <param name="p_Connector"></param>
private void DeleteLinkConnectors(NodeGraphConnector p_Connector)
{
List<NodeGraphLink> v_LinksToDelete = new List<NodeGraphLink>();
foreach (NodeGraphLink i_Link in this.View.Links)
{
if (i_Link.Input == p_Connector || i_Link.Output == p_Connector)
{
v_LinksToDelete.Add(i_Link);
}
}
foreach (NodeGraphLink i_LinkToDelete in v_LinksToDelete)
{
this.View.Links.Remove(i_LinkToDelete);
}
Refresh();
}
/// <summary>
/// Returns whether a connector is already linked
/// </summary>
/// <param name="p_Node"></param>
/// <returns></returns>
public bool IsLinked(NodeGraphConnector p_Node)
{
foreach (NodeGraphLink i_Link in this.View.Links)
{
if (i_Link.Input == p_Node || i_Link.Output == p_Node) return true;
}
return false;
}
/// <summary>
/// Returns the other end of a connector
/// </summary>
/// <param name="p_LinkOutConnector"></param>
/// <returns></returns>
public NodeGraphConnector GetLink(NodeGraphConnector p_LinkOutConnector)
{
foreach (NodeGraphLink i_Link in this.View.Links)
{
if (i_Link.Output == p_LinkOutConnector) return i_Link.Input;
}
return null;
}
/// <summary>
/// Creates a UserControl component that displays NodeGraphViews and let interact with NodeGraphNodes & NodeGraphLinks
/// </summary>
public NodeGraphPanel()
{
InitializeComponent();
this.m_oView = new NodeGraphView(this);
this.m_oDebugFont = new Font("Tahoma", 8.0f);
this.m_ScrollMargins = 32;
this.m_ScrollMarginsValue = 10;
this.m_eEditMode = NodeGraphEditMode.Idle;
this.m_ViewSpaceCursorLocation = new Point();
this.m_bAltPressed = false;
this.m_bCtrlPressed = false;
this.m_NodeText = new SolidBrush(Color.White);
this.m_NodeTextShadow = new SolidBrush(Color.Black);
this.NodeTitleZoomThreshold = 0.5f;
this.NodeConnectorTextZoomTreshold = 0.8f;
this.NodeHeaderSize = 24;
this.NodeTextColor = Color.FromArgb(255, 255, 255, 255);
this.NodeTextShadowColor = Color.FromArgb(128, 0, 0, 0);
this.NodeFillColor = Color.FromArgb(255, 128, 128, 128);
this.NodeFillSelectedColor = Color.FromArgb(255, 160, 128, 100);
this.NodeOutlineColor = Color.FromArgb(255, 180, 180, 180);
this.NodeOutlineSelectedColor = Color.FromArgb(255, 192, 160, 128);
this.ConnectorTextColor = Color.FromArgb(255, 64, 64, 64);
this.ConnectorFillColor = Color.FromArgb(255, 0, 0, 0);
this.ConnectorFillSelectedColor = Color.FromArgb(255, 32, 32, 32);
this.ConnectorOutlineColor = Color.FromArgb(255, 32, 32, 32);
this.ConnectorOutlineSelectedColor = Color.FromArgb(255, 64, 64, 64);
this.SelectionFillColor = Color.FromArgb(64, 128, 90, 30);
this.SelectionOutlineColor = Color.FromArgb(192, 255, 180, 60);
this.NodeHeaderColor = Color.FromArgb(128, 0, 0, 0);
this.LinkColor = Color.FromArgb(255, 180, 180, 180);
this.LinkEditableColor = Color.FromArgb(255, 64, 255, 0);
this.NodeSignalValidColor = Color.FromArgb(255, 0, 255, 0);
this.NodeSignalInvalidColor = Color.FromArgb(255, 255, 0, 0);
this.m_NodeTitleFont = new Font("Tahoma", 8.0f);
this.m_NodeConnectorFont = new Font("Tahoma", 7.0f);
this.m_NodeScaledTitleFont = new Font(m_NodeTitleFont.Name, m_NodeTitleFont.Size);
this.m_NodeScaledConnectorFont = new Font(m_NodeConnectorFont.Name, m_NodeConnectorFont.Size);
this.m_LinkVisualStyle = LinkVisualStyle.Curve;
this.ConnectorHitZoneBleed = 2;
this.m_SelectBoxOrigin = new Point();
this.m_SelectBoxCurrent = new Point();
this.LinkHardness = 2.0f;
this.m_iScrollLastX = 0;
this.m_iScrollLastY = 0;
this.EnableDrawDebug = true;
this.Dock = DockStyle.Fill;
this.DoubleBuffered = true;
this.m_InputLink = null;
this.m_OutputLink = null;
this.m_bShowGrid = false;
this.m_iGridPadding = 256;
this.m_iGridAlpha = 32;
this.m_bDrawShadow = true;
this.m_bSmoothBehavior = false;
}
/// <summary>
/// Validates a link being edited
/// </summary>
private void ValidateLink()
{
if (this.m_InputLink != null &&
this.m_OutputLink != null &&
this.m_InputLink != this.m_OutputLink &&
this.m_InputLink.Type != this.m_OutputLink.Type)
{
if (m_InputLink.Type == ConnectorType.OutputConnector)
{
if (IsLinked(m_OutputLink)) DeleteLinkConnectors(m_OutputLink);
this.View.Links.Add(new NodeGraphLink(m_InputLink, m_OutputLink));
}
else
{
if (IsLinked(m_InputLink)) DeleteLinkConnectors(m_InputLink);
this.View.Links.Add(new NodeGraphLink( m_OutputLink, m_InputLink));
}
}
m_InputLink = null;
m_OutputLink = null;
}
/// <summary>
/// Behavior when Mouse Click is released
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NodeGraphPanel_MouseUp(object sender, MouseEventArgs e)
{
switch (this.m_eEditMode)
{
case NodeGraphEditMode.Scrolling:
if (e.Button == MouseButtons.Middle) this.m_eEditMode = NodeGraphEditMode.Idle;
break;
case NodeGraphEditMode.Selecting:
case NodeGraphEditMode.SelectingBox:
if (e.Button == MouseButtons.Left)
{
this.CreateSelection();
this.m_eEditMode = NodeGraphEditMode.Idle;
}
break;
case NodeGraphEditMode.MovingSelection:
if (e.Button == MouseButtons.Left)
{
this.m_eEditMode = NodeGraphEditMode.Idle;
}
break;
case NodeGraphEditMode.Linking:
this.m_OutputLink = GetHitConnector(e.Location);
ValidateLink();
this.m_eEditMode = NodeGraphEditMode.Idle;
break;
default:
break;
}
}
/// <summary>
/// Behavior when Mouse is Clicked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NodeGraphPanel_MouseDown(object sender, MouseEventArgs e)
{
switch(this.m_eEditMode) {
case NodeGraphEditMode.Idle:
switch (e.Button)
{
case MouseButtons.Middle:
this.m_eEditMode = NodeGraphEditMode.Scrolling;
this.m_iScrollLastX = e.Location.X;
this.m_iScrollLastY = e.Location.Y;
break;
case MouseButtons.Left:
if (this.HitAll(e.Location) == HitType.Connector)
{
if (!m_bAltPressed)
{
this.m_eEditMode = NodeGraphEditMode.Linking;
this.m_InputLink = GetHitConnector(e.Location);
this.m_OutputLink = null;
}
else
{
NodeGraphConnector v_Connector = GetHitConnector(e.Location);
this.DeleteLinkConnectors(v_Connector);
}
} else if (this.View.SelectedItems.Count > 0 && this.HitSelected(e.Location)== HitType.Node)
{
this.m_eEditMode = NodeGraphEditMode.MovingSelection;
this.m_MoveLastPosition = this.ControlToView(e.Location);
}
else
{
this.m_eEditMode = NodeGraphEditMode.Selecting;
this.m_SelectBoxCurrent = this.ControlToView(new Point(e.X, e.Y));
this.m_SelectBoxOrigin = this.ControlToView(new Point(e.X, e.Y));
this.UpdateHighlights();
this.CreateSelection();
if (this.View.SelectedItems.Count > 0)
{
this.m_eEditMode = NodeGraphEditMode.MovingSelection;
this.m_MoveLastPosition = this.ControlToView(e.Location);
}
}
break;
default:
break;
}
break;
default: break;
}
this.Refresh();
}
/// <summary>
/// Gets the connector index, given the connector object reference
/// </summary>
/// <param name="p_Connector">the connector reference</param>
/// <returns>the connector index</returns>
public int GetConnectorIndex(NodeGraphConnector p_Connector)
{
for (int i = 0; i < this.m_Connectors.Count; i++)
{
if (this.m_Connectors[i] == p_Connector) return i;
}
return -1;
}
/// <summary>
/// Creates a new NodeGraphLink, given input and output Connectors
/// </summary>
/// <param name="p_Input"></param>
/// <param name="p_Output"></param>
public NodeGraphLink(NodeGraphConnector p_Input, NodeGraphConnector p_Output)
{
this.m_InputConnector = p_Input;
this.m_OutputConnector = p_Output;
}
/// <summary>
/// Creates a new NodeGraphLink, given input and output Connectors
/// </summary>
/// <param name="p_Input"></param>
/// <param name="p_Output"></param>
public NodeGraphLink(NodeGraphConnector p_Input, NodeGraphConnector p_Output)
{
this.m_InputConnector = p_Input;
this.m_OutputConnector = p_Output;
}
/// <summary>
/// Creates a new NodeGraphLink, given input and output Connectors
/// </summary>
/// <param name="p_Input"></param>
/// <param name="p_Output"></param>
public NodeGraphLink(NodeGraphConnector p_Input, NodeGraphConnector p_Output, NodeGraphDataType p_DataType)
{
this.m_InputConnector = p_Input;
this.m_OutputConnector = p_Output;
this.m_NodeGraphDataType = p_DataType;
}
/// <summary>
/// Creates a new NodeGraphLink, given input and output Connectors
/// </summary>
/// <param name="p_Input"></param>
/// <param name="p_Output"></param>
public NodeGraphLink(NodeGraphConnector p_Input, NodeGraphConnector p_Output, NodeGraphDataType p_DataType)
{
this.m_InputConnector = p_Input;
this.m_OutputConnector = p_Output;
this.m_NodeGraphDataType = p_DataType;
}
