using System.Windows.Forms;

using OIV.Inventor.Nodes;
using OIV.Inventor.Win.Viewers;

namespace _04_2_Lights
{
  public partial class MainForm : Form
  {
    SoWinExaminerViewer myViewer;

    public MainForm()
    {
      InitializeComponent();
      CreateSample();
    }

    public void CreateSample()
    {
      SoSeparator root = new SoSeparator();

      // Add a directional light
      SoDirectionalLight myDirLight = new SoDirectionalLight();
      myDirLight.direction.SetValue(0, -1, -1);
      myDirLight.color.SetValue(1, 0, 0);
      root.AddChild(myDirLight);

      // Put the shuttle and the light below a transform separator.
      // A transform separator pushes and pops the transformation 
      // just like a separator node, but other aspects of the state 
      // are not pushed and popped. So the shuttle's translation 
      // will affect only the light. But the light will shine on 
      // the rest of the scene.
      SoTransformSeparator myTransformSeparator = new SoTransformSeparator();
      root.AddChild(myTransformSeparator);

      // A shuttle node translates back and forth between the two
      // fields translation0 and translation1.  
      // This moves the light.
      SoShuttle myShuttle = new SoShuttle();
      myTransformSeparator.AddChild(myShuttle);
      myShuttle.translation0.SetValue(-2, -1, 3);
      myShuttle.translation1.SetValue(1, 2, -3);

      // Add the point light below the transformSeparator
      SoPointLight myPointLight = new SoPointLight();
      myTransformSeparator.AddChild(myPointLight);
      myPointLight.color.SetValue(0, 1, 0);

      root.AddChild(new SoCone());

      myViewer = new SoWinExaminerViewer(this, "", true,
          SoWinFullViewer.BuildFlags.BUILD_ALL, SoWinViewer.Types.BROWSER);
      myViewer.SetSceneGraph(root);
      myViewer.SetTitle("Lights");
      myViewer.SetHeadlight(false);
    }
  }
}