void DragGraphInput(GraphData graphData)
{
AssertHelpers.IsNotNull(graphData, "GraphData is null while carrying out DragGraphInputAction");
AssertHelpers.IsNotNull(graphInputBeingDraggedIn, "GraphInputBeingDraggedIn is null while carrying out DragGraphInputAction");
graphData.owner.RegisterCompleteObjectUndo("Drag Graph Input");
switch (graphInputBeingDraggedIn)
{
case AbstractShaderProperty property:
{
if (property is MultiJsonInternal.UnknownShaderPropertyType)
{
break;
}
// This could be from another graph, in which case we add a copy of the ShaderInput to this graph.
if (graphData.properties.FirstOrDefault(p => p == property) == null)
{
var copyShaderInputAction = new CopyShaderInputAction();
copyShaderInputAction.shaderInputToCopy = property;
graphData.owner.graphDataStore.Dispatch(copyShaderInputAction);
property = (AbstractShaderProperty)copyShaderInputAction.copiedShaderInput;
}
var node = new PropertyNode();
var drawState = node.drawState;
drawState.position = new Rect(nodePosition, drawState.position.size);
node.drawState = drawState;
graphData.AddNode(node);
// Setting the guid requires the graph to be set first.
node.property = property;
break;
}
case ShaderKeyword keyword:
{
// This could be from another graph, in which case we add a copy of the ShaderInput to this graph.
if (graphData.keywords.FirstOrDefault(k => k == keyword) == null)
{
var copyShaderInputAction = new CopyShaderInputAction();
copyShaderInputAction.shaderInputToCopy = keyword;
graphData.owner.graphDataStore.Dispatch(copyShaderInputAction);
keyword = (ShaderKeyword)copyShaderInputAction.copiedShaderInput;
}
var node = new KeywordNode();
var drawState = node.drawState;
drawState.position = new Rect(nodePosition, drawState.position.size);
node.drawState = drawState;
graphData.AddNode(node);
// Setting the guid requires the graph to be set first.
node.keyword = keyword;
break;
}
case ShaderDropdown dropdown:
{
if (graphData.IsInputAllowedInGraph(dropdown))
{
// This could be from another graph, in which case we add a copy of the ShaderInput to this graph.
if (graphData.dropdowns.FirstOrDefault(d => d == dropdown) == null)
{
var copyShaderInputAction = new CopyShaderInputAction();
copyShaderInputAction.shaderInputToCopy = dropdown;
graphData.owner.graphDataStore.Dispatch(copyShaderInputAction);
dropdown = (ShaderDropdown)copyShaderInputAction.copiedShaderInput;
}
var node = new DropdownNode();
var drawState = node.drawState;
drawState.position = new Rect(nodePosition, drawState.position.size);
node.drawState = drawState;
graphData.AddNode(node);
// Setting the guid requires the graph to be set first.
node.dropdown = dropdown;
}
break;
}
default:
throw new ArgumentOutOfRangeException();
}
}
