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SelectMeshNode.cs
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SelectMeshNode.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Xml;
using System.Xml.Serialization;
using Autodesk.DesignScript.Geometry;
using Autodesk.Maya.OpenMaya;
using Dynamo.Controls;
using Dynamo.Graph;
using Dynamo.Graph.Nodes;
using Dynamo.UI.Commands;
using Dynamo.Wpf;
using DynaMaya.Geometry;
using DynaMaya.NodeUI;
using Autodesk.DesignScript.Runtime;
using ProtoCore.AST.AssociativeAST;
using DynaMaya.Util;
using Newtonsoft.Json;
using System.Collections;
using System.Runtime.CompilerServices;
namespace DynaMaya.UINodes
{
[NodeName("Get Selected Mesh")]
[NodeCategory("DynaMaya.Interop.Select")]
[NodeDescription("Select Maya Mesh")]
[OutPortTypes("Mesh","string","MayaMesh")]
[IsDesignScriptCompatible]
public class SelectMeshNode : NodeModel
{
#region private members
private AssociativeNode _meshLstNode = AstFactory.BuildNullNode();
private AssociativeNode _SelectedNameLstNode = AstFactory.BuildNullNode();
private AssociativeNode _mayaMesh = AstFactory.BuildNullNode();
private MSpace.Space space = MSpace.Space.kWorld;
private bool firstRun = true;
private bool hasBeenDeleted = false;
private bool m_liveUpdate = false;
private bool isFromUpdate = false;
private bool isUpdating = false;
private string m_mSpace = MSpace.Space.kWorld.ToString();
private Dictionary<string, DMMesh> SelectedItems;
private List<string> m_SelectedItemNames = new List<string>();
private string m_SelectedItemNamesString = "";
private Dictionary<string ,AssociativeNode> dynamoMesh = null;
private Dictionary<string, AssociativeNode> meshName = null;
private Dictionary<string, AssociativeNode> mayaMesh = null;
private Func<string, string, Mesh> dynamoElementFunc = DMMesh.ToDynamoElement;
private Func<string, string, MFnMesh> MayaElementFunc = DMMesh.GetMayaMesh;
#endregion
#region properties
[IsVisibleInDynamoLibrary(false)]
[JsonProperty(PropertyName = "mSpace")]
public string mSpace
{
get
{
return m_mSpace;
}
set
{
m_mSpace = value;
Enum.TryParse(m_mSpace, out space);
RaisePropertyChanged("mSpace");
}
}
[IsVisibleInDynamoLibrary(false)]
[JsonProperty(PropertyName = "liveUpdate")]
public bool liveUpdate
{
get
{
return m_liveUpdate;
}
set
{
m_liveUpdate = value;
if(m_liveUpdate)
{
registerUpdateEvents();
}
else
{
unRegisterUpdateEvents();
}
RaisePropertyChanged("liveUpdate");
}
}
[IsVisibleInDynamoLibrary(false)]
[JsonProperty(PropertyName = "SelectedItemNamesString")]
public string SelectedItemNamesString
{
get
{
return m_SelectedItemNamesString;
}
set
{
m_SelectedItemNamesString = value;
DeserializeNameList(m_SelectedItemNamesString);
RaisePropertyChanged("SelectedItemNamesString");
OnNodeModified();
}
}
private void DeserializeNameList(string nameListString)
{
var splitNames = nameListString.Split(',');
if (splitNames.Length > 0)
{
SelectedItems = new Dictionary<string, DMMesh>(splitNames.Length);
foreach (var name in splitNames)
{
try
{
var itm = new DMMesh(DMInterop.getDagNode(name), space);
itm.Deleted += MObjOnDeleted;
itm.Changed += MObjOnChanged;
SelectedItems.Add(itm.dagName, itm);
}
catch
{
Warning($"Object {name} does not exist or is not valid");
}
}
}
}
/// <summary>
/// DelegateCommand objects allow you to bind
/// UI interaction to methods on your data context.
/// </summary>
[IsVisibleInDynamoLibrary(false), JsonIgnore]
public DelegateCommand SelectBtnCmd { get; set; }
[IsVisibleInDynamoLibrary(false), JsonIgnore]
public DelegateCommand ManualUpdateCmd { get; set; }
#endregion
// Use the VMDataBridge to safely retrieve our input values
#region databridge callback
/// <summary>
/// Register the data bridge callback.
/// </summary>
protected override void OnBuilt()
{
base.OnBuilt();
VMDataBridge.DataBridge.Instance.RegisterCallback(GUID.ToString(), DataBridgeCallback);
isUpdating = false;
}
/// <summary>
/// Callback method for DataBridge mechanism.
/// This callback only gets called when
/// - The AST is executed
/// - After the BuildOutputAST function is executed
/// - The AST is fully built
/// </summary>
/// <param name="data">The data passed through the data bridge.</param>
private void DataBridgeCallback(object data)
{
try
{
var dataObj = data;
//JsonConvert.SerializeObject(SelectedItems);
}catch
{
Warning("DataBridge callback failed");
}
}
#endregion
#region constructor
/// <summary>
/// The constructor for a NodeModel is used to create
/// the input and output ports and specify the argument
/// lacing.
/// </summary>
public SelectMeshNode()
{
OutPorts.Add(new PortModel(PortType.Output, this, new PortData("Mesh", "The Dynamo Mesh (Will only show if the mesh is quad or triangle)")));
OutPorts.Add(new PortModel(PortType.Output, this, new PortData("Mesh Name", "The name of the object in Maya")));
OutPorts.Add(new PortModel(PortType.Output, this, new PortData("Maya Mesh", "This is the Maya Mesh typology which gives you access to all of the mesh including NGone mesh data")));
RegisterAllPorts();
ArgumentLacing = LacingStrategy.Shortest;
CanUpdatePeriodically = true;
PortDisconnected += Node_PortDisconnected;
SelectBtnCmd = new DelegateCommand(SelectBtnClicked, isOk);
ManualUpdateCmd = new DelegateCommand(ManualUpdateBtnClicked, isOk);
}
// Starting with Dynamo v2.0 you must add Json constructors for all nodeModel
// dervived nodes to support the move from an Xml to Json file format. Failing to
// do so will result in incorrect ports being generated upon serialization/deserialization.
// This constructor is called when opening a Json graph.
[JsonConstructor]
SelectMeshNode(IEnumerable<PortModel> inPorts, IEnumerable<PortModel> outPorts) : base(inPorts, outPorts)
{
}
// Restore default button/window text and trigger UI update
private void Node_PortDisconnected(PortModel obj)
{
SelectedItems = new Dictionary<string, DMMesh>() ;
}
#endregion
#region public methods
/// <summary>
/// If this method is not overriden, Dynamo will, by default
/// pass data through this node. But we wouldn't be here if
/// we just wanted to pass data through the node, so let's
/// try using the data.
/// </summary>
/// <param name="inputAstNodes"></param>
/// <returns></returns>
[IsVisibleInDynamoLibrary(false)]
public override IEnumerable<AssociativeNode> BuildOutputAst(List<AssociativeNode> inputAstNodes)
{
this.ClearErrorsAndWarnings();
if (SelectedItems == null || hasBeenDeleted)
{
//SelectedItems = new Dictionary<string, DMMesh>();
_meshLstNode = AstFactory.BuildNullNode();
_SelectedNameLstNode = AstFactory.BuildNullNode();
_mayaMesh = AstFactory.BuildNullNode();
hasBeenDeleted = false;
//return Enumerable.Empty<AssociativeNode>();
}
else
{
if (SelectedItems.Count > 0)
{
//only rebuild the entire list of geom if needed. otherwise this has been created and is built and updated as needed on only the geometry that has changed
if (!isFromUpdate)
{
dynamoMesh = new Dictionary<string, AssociativeNode>(SelectedItems.Count);
meshName = new Dictionary<string, AssociativeNode>(SelectedItems.Count);
mayaMesh = new Dictionary<string, AssociativeNode>(SelectedItems.Count);
foreach (var dag in SelectedItems.Values)
{
buildAstNodes(dag.dagName);
}
}
_meshLstNode = AstFactory.BuildExprList(dynamoMesh.Values.ToList());
_SelectedNameLstNode = AstFactory.BuildExprList(meshName.Values.ToList());
_mayaMesh = AstFactory.BuildExprList(mayaMesh.Values.ToList());
}
else
{
_meshLstNode = AstFactory.BuildNullNode();
}
}
isFromUpdate = false;
return new[]
{
AstFactory.BuildAssignment(GetAstIdentifierForOutputIndex(0), _meshLstNode),
AstFactory.BuildAssignment(AstFactory.BuildIdentifier(AstIdentifierBase + "_dummy"),
VMDataBridge.DataBridge.GenerateBridgeDataAst(GUID.ToString(), AstFactory.BuildExprList(inputAstNodes))),
AstFactory.BuildAssignment(GetAstIdentifierForOutputIndex(1), _SelectedNameLstNode),
AstFactory.BuildAssignment(AstFactory.BuildIdentifier(AstIdentifierBase + "_dummy"),
VMDataBridge.DataBridge.GenerateBridgeDataAst(GUID.ToString(), AstFactory.BuildExprList(inputAstNodes))),
AstFactory.BuildAssignment(GetAstIdentifierForOutputIndex(2), _mayaMesh),
AstFactory.BuildAssignment(AstFactory.BuildIdentifier(AstIdentifierBase + "_dummy"),
VMDataBridge.DataBridge.GenerateBridgeDataAst(GUID.ToString(), AstFactory.BuildExprList(inputAstNodes)))
};
}
internal void buildAstNodes(string dagName)
{
meshName.Add(dagName, AstFactory.BuildStringNode(dagName));
mayaMesh.Add(dagName, AstFactory.BuildFunctionCall(
MayaElementFunc,
new List<AssociativeNode>
{
AstFactory.BuildStringNode(dagName),
AstFactory.BuildStringNode(m_mSpace)
}));
dynamoMesh.Add(dagName, AstFactory.BuildFunctionCall(
dynamoElementFunc,
new List<AssociativeNode>
{
AstFactory.BuildStringNode(dagName),
AstFactory.BuildStringNode(m_mSpace)
}));
}
internal void registerUpdateEvents()
{
if(SelectedItems !=null)
{
foreach (KeyValuePair<string, DMMesh> itm in SelectedItems)
{
itm.Value.AddEvents(itm.Value.DagShape);
itm.Value.Changed += MObjOnChanged;
}
}
}
internal void unRegisterUpdateEvents()
{
if (SelectedItems != null)
{
foreach (KeyValuePair<string, DMMesh> itm in SelectedItems)
{
itm.Value.Changed -= MObjOnChanged;
itm.Value.RemoveEvents(itm.Value.DagShape);
}
}
}
internal void GetNewGeom()
{
// VMDataBridge.DataBridge.Instance.UnregisterCallback(GUID.ToString());
if (firstRun)
firstRun = false;
else
{
if (SelectedItems != null)
{
foreach (var itm in SelectedItems.Values)
{
itm.Dispose();
}
}
}
MSelectionList selectionList = new MSelectionList();
MGlobal.getActiveSelectionList(selectionList,true);
if(selectionList.isEmpty)
if(selectionList.isEmpty)
{
SelectedItems = null;
OnNodeModified(true);
return;
}
var TransObjectList = selectionList.DagPaths(MFn.Type.kTransform).ToList();
var DagObjectList = selectionList.DagPaths(MFn.Type.kMesh).ToList();
SelectedItems = new Dictionary<string, DMMesh>(DagObjectList.Count);
m_SelectedItemNames = new List<string>(DagObjectList.Count);
foreach (var dag in TransObjectList)
{
if (dag.hasFn(MFn.Type.kMesh))
{
var itm = new DMMesh(dag, space);
itm.Renamed += Itm_Renamed;
itm.Deleted += MObjOnDeleted;
SelectedItems.Add(itm.dagName, itm);
m_SelectedItemNames.Add(itm.dagName);
// ct++;
}
else
{
MGlobal.displayWarning($"Selected item is not a kMesh, it is a {dag.apiType}");
}
}
m_SelectedItemNamesString = ConvertStringListToString(m_SelectedItemNames);
OnNodeModified(true);
}
internal void rebuildItemNameList(bool updateNameListString = true)
{
m_SelectedItemNames = new List<string>(SelectedItems.Count);
foreach (var itm in SelectedItems)
{
m_SelectedItemNames.Add(itm.Value.dagName);
}
if (updateNameListString)
{
ConvertStringListToString(m_SelectedItemNames);
}
}
internal static string ConvertStringListToString(List<string> stringList)
{
string listAsString = "";
for(int i=0; i<stringList.Count-1; i++)
{
listAsString += stringList[i] + ",";
}
listAsString += stringList[stringList.Count - 1];
return listAsString;
}
internal void MObjOnDeleted(object sender, MFnDagNode dagNode)
{
isFromUpdate = true;
if (SelectedItems != null && SelectedItems.Count>0)
{
var dag = (DMMesh)sender;
if (SelectedItems.Count == 1)
{
hasBeenDeleted = true;
SelectedItems = null;
OnNodeModified(true);
return;
}
if (SelectedItems.ContainsKey(dag.dagName))
{
SelectedItems.Remove(dag.dagName);
dynamoMesh.Remove(dag.dagName);
mayaMesh.Remove(dag.dagName);
meshName.Remove(dag.dagName);
}
OnNodeModified(true);
}
}
internal void MObjOnChanged(object sender, MFnDagNode dagNode)
{
if (!isUpdating)
{
isUpdating = true;
var dag = new DMMesh(dagNode.dagPath, space);
isFromUpdate = true;
if (SelectedItems.ContainsKey(dag.dagName))
{
SelectedItems[dag.dagName] = dag;
dynamoMesh[dag.dagName] = AstFactory.BuildFunctionCall(
dynamoElementFunc,
new List<AssociativeNode>
{
AstFactory.BuildStringNode(dag.dagName),
AstFactory.BuildStringNode(m_mSpace)
});
mayaMesh[dag.dagName] = AstFactory.BuildFunctionCall(
MayaElementFunc,
new List<AssociativeNode>
{
AstFactory.BuildStringNode(dag.dagName),
AstFactory.BuildStringNode(m_mSpace)
});
}
OnNodeModified(true);
}
}
private void Itm_Renamed(object sender, MFnDagNode dagNode)
{
//ToDo: get the rename system working
var dag = (DMMesh)sender;
if (SelectedItems.ContainsKey(dag.dagName))
{
string newName = dagNode.partialPathName;
string oldName = dag.dagName;
isFromUpdate = true;
SelectedItems.Remove(oldName);
meshName.Remove(oldName);
mayaMesh.Remove(oldName);
var dmmesh = new DMMesh(dagNode.dagPath, m_mSpace);
SelectedItems.Add(newName, dmmesh);
buildAstNodes(newName);
rebuildItemNameList();
OnNodeModified(true);
}
dag.Dispose();
}
#endregion
#region command methods
internal static bool isOk(object obj)
{
return true;
}
[IsVisibleInDynamoLibrary(false)]
public void SelectBtnClicked(object obj)
{
GetNewGeom();
}
[IsVisibleInDynamoLibrary(false)]
public void ManualUpdateBtnClicked(object obj)
{
OnNodeModified(true);
}
#endregion
[IsVisibleInDynamoLibrary(false)]
public override void Dispose()
{
base.Dispose();
if (SelectedItems != null)
foreach (var itm in SelectedItems.Values)
{
itm.Dispose();
}
}
}
/// <summary>
/// View customizer for CustomNodeModel Node Model.
/// </summary>
[IsVisibleInDynamoLibrary(false)]
public class MeshNodeViewCustomization : INodeViewCustomization<SelectMeshNode>
{
/// <summary>
/// At run-time, this method is called during the node
/// creation. Here you can create custom UI elements and
/// add them to the node view, but we recommend designing
/// your UI declaratively using xaml, and binding it to
/// properties on this node as the DataContext.
/// </summary>
/// <param name="model">The NodeModel representing the node's core logic.</param>
/// <param name="nodeView">The NodeView representing the node in the graph.</param>
public void CustomizeView(SelectMeshNode model, NodeView nodeView)
{
// The view variable is a reference to the node's view.
// In the middle of the node is a grid called the InputGrid.
// We reccommend putting your custom UI in this grid, as it has
// been designed for this purpose.
// Create an instance of our custom UI class (defined in xaml),
// and put it into the input grid.
var SelectNodeControl = new SelectNodeUI();
nodeView.inputGrid.Children.Add(SelectNodeControl);
// Set the data context for our control to be this class.
// Properties in this class which are data bound will raise
// property change notifications which will update the UI.
SelectNodeControl.DataContext = model;
}
/// <summary>
/// Here you can do any cleanup you require if you've assigned callbacks for particular
/// UI events on your node.
/// </summary>
public void Dispose() { }
}
}