public ExampleForm()
{
InitializeComponent();
var someNode = new Node("My Title");
someNode.Location = new Point(500, 100);
var check1Item = new NodeCheckboxItem("Check 1", true, false);
someNode.AddItem(check1Item);
someNode.AddItem(new NodeCheckboxItem("Check 2", true, false));
graphControl.AddNode(someNode);
var colorNode = new Node("Color");
colorNode.Location = new Point(200, 50);
var redChannel = new NodeSliderItem("R", 64.0f, 16.0f, 0, 1.0f, 0.0f, false, false);
var greenChannel = new NodeSliderItem("G", 64.0f, 16.0f, 0, 1.0f, 0.0f, false, false);
var blueChannel = new NodeSliderItem("B", 64.0f, 16.0f, 0, 1.0f, 0.0f, false, false);
var colorItem = new NodeColorItem("Color", Color.Black, false, true);
EventHandler <NodeItemEventArgs> channelChangedDelegate = delegate(object sender, NodeItemEventArgs args)
{
var red = redChannel.Value;
var green = blueChannel.Value;
var blue = greenChannel.Value;
colorItem.Color = Color.FromArgb((int)Math.Round(red * 255), (int)Math.Round(green * 255), (int)Math.Round(blue * 255));
};
redChannel.ValueChanged += channelChangedDelegate;
greenChannel.ValueChanged += channelChangedDelegate;
blueChannel.ValueChanged += channelChangedDelegate;
colorNode.AddItem(redChannel);
colorNode.AddItem(greenChannel);
colorNode.AddItem(blueChannel);
colorItem.Clicked += new EventHandler <NodeItemEventArgs>(OnColClicked);
colorNode.AddItem(colorItem);
graphControl.AddNode(colorNode);
var textureNode = new Node("Texture");
textureNode.Location = new Point(300, 150);
var imageItem = new NodeImageItem(Properties.Resources.example, 64, 64, false, true);
imageItem.Clicked += new EventHandler <NodeItemEventArgs>(OnImgClicked);
textureNode.AddItem(imageItem);
graphControl.AddNode(textureNode);
graphControl.ConnectionAdded += new EventHandler <AcceptNodeConnectionEventArgs>(OnConnectionAdded);
graphControl.ConnectionRemoving += new EventHandler <AcceptNodeConnectionEventArgs>(OnConnectionRemoved);
graphControl.Connect(colorItem, check1Item);
}
private void TextureNode_MouseDown(object sender, MouseEventArgs e)
{
var textureNode = new Node("Texture");
textureNode.Location = new Point(300, 150);
var imageItem = new NodeImageItem(Properties.Resources.example, 64, 64, false, true);
imageItem.Clicked += new EventHandler <NodeItemEventArgs>(OnImgClicked);
textureNode.AddItem(imageItem);
this.DoDragDrop(textureNode, DragDropEffects.Copy);
}
protected MyNodeView(MyNodeConfig nodeInfo, GraphControl owner)
: base("")
{
NodeInfo = nodeInfo;
Owner = owner;
m_icon = nodeInfo.BigImage;
m_iconItem = new NodeImageItem(m_icon, 48, 48, false, false);
m_iconItem.Tag = 0;
m_descItem = new NodeLabelItem("");
AddItem(m_iconItem);
AddItem(m_descItem);
}
protected MyNodeView(MyNodeConfig nodeConfig, GraphControl owner)
: base("")
{
Owner = owner;
Config = nodeConfig;
m_icon = nodeConfig.BigImage;
m_iconItem = new NodeImageItem(m_icon, 48, 48, false, false)
{
IsPassive = true,
Tag = 0
};
m_descItem = new NodeLabelItem("")
{
IsPassive = true
};
AddItem(m_iconItem);
AddItem(m_descItem);
}
public Node CreateNode()
{
Node addColorNode = new Node(GetNodeName());
addColorNode.Location = new Point(200, 50);
var color = new NodeLabelItem("Color", true, false, new[] {
typeof(ShaderTypes.float3),
typeof(ShaderTypes.float4)
},
null)
{
Tag = 1
};
var imageIn = new NodeLabelItem("Image", true, false, new[] { typeof(ShaderTypes.sampler2D) }, null)
{
Tag = 2
};
var imageOut = new NodeImageItem(Properties.Resources.DefaultImage,
64,
64,
false,
true,
null,
new[] { typeof(Image) })
{
Tag = 3
};
addColorNode.AddItem(color);
addColorNode.AddItem(imageIn);
addColorNode.AddItem(imageOut);
addColorNode.ParentModule = this;
return(addColorNode);
}
public void HandleConnectionAdded(NodeConnection connection, bool input)
{
NodeConnector connector;
Node node;
NodeItem colorFromItem = null;
NodeImageItem imageFromItem = null;
NodeImageItem imageOutputItem = null;
if (input)
{
node = connection.To.Node;
}
else
{
node = connection.From.Node;
}
NodeItem colorToItem = (NodeItem)node.Items.FirstOrDefault(item => item.Tag.Equals(1));
NodeItem imageToItem = (NodeItem)node.Items.FirstOrDefault(item => item.Tag.Equals(2));
imageOutputItem = (NodeImageItem)node.Items.FirstOrDefault(item => item.Tag.Equals(3));
var outArgs = new NodeItemEventArgs(imageOutputItem);
foreach (NodeConnection conn in node.Connections)
{
if (conn.To.Item == null)
{
continue;
}
if (conn.To.Item == imageToItem)
{
imageFromItem = conn.From.Item as NodeImageItem;
}
if (conn.To.Item == colorToItem)
{
colorFromItem = conn.From.Item;
}
}
if (!colorHandlerDict.ContainsKey(node) && colorFromItem != null && imageFromItem != null)
{
colorHandlerDict[node] = (sender, args) =>
{
if (imageFromItem != null && colorFromItem != null)
{
imageOutputItem.Image = AddColor(HelperMethods.ColorFromFloatStruct(colorFromItem.OutputData), imageFromItem.Image);
node.UpdateOutput(outArgs);
}
};
colorFromItem.Node.OutputChanged += colorHandlerDict[node];
}
if (!imageHandlerDict.ContainsKey(node) && imageFromItem != null && colorFromItem != null)
{
imageHandlerDict[node] = (sender, args) =>
{
if (imageFromItem != null && colorFromItem != null)
{
imageOutputItem.Image = AddColor(HelperMethods.ColorFromFloatStruct(colorFromItem.OutputData), imageFromItem.Image);
node.UpdateOutput(outArgs);
}
};
imageFromItem.Node.OutputChanged += imageHandlerDict[node];
}
if (imageFromItem != null && colorFromItem != null)
{
imageOutputItem.Image = AddColor(HelperMethods.ColorFromFloatStruct(colorFromItem.OutputData), imageFromItem.Image);
node.UpdateOutput(outArgs);
}
}
