예제 #1
0
        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;
            }

            default:
                throw new ArgumentOutOfRangeException();
            }
        }