Merge pull request #398 from chakravarthi589/Update_TextActor

Update text actor

src/Java/GeometricObjects/TextActor.java

-import java.awt.BorderLayout;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-
-import javax.swing.JButton;
-import javax.swing.JFrame;
-import javax.swing.JPanel;
-import javax.swing.SwingUtilities;
-
-
 import vtk.vtkNativeLibrary;
-import vtk.vtkPanel;
+import vtk.vtkRenderWindow;
+import vtk.vtkRenderWindowInteractor;
+import vtk.vtkRenderer;
 import vtk.vtkTextActor;
 import vtk.vtkNamedColors;
 
-
-public class TextActor extends JPanel implements ActionListener {
-  private static final long serialVersionUID = 1L;
-  private vtkPanel renWin;
-  private JButton exitButton;
-
-  // -----------------------------------------------------------------
+public class TextActor  
+{
+  //-----------------------------------------------------------------
   // Load VTK library and print which library was not properly loaded
-  static {
-    if (!vtkNativeLibrary.LoadAllNativeLibraries()) {
-      for (vtkNativeLibrary lib : vtkNativeLibrary.values()) {
-        if (!lib.IsLoaded()) {
+  static 
+  {
+    if (!vtkNativeLibrary.LoadAllNativeLibraries()) 
+    {
+      for (vtkNativeLibrary lib : vtkNativeLibrary.values()) 
+      {
+        if (!lib.IsLoaded()) 
+        {
           System.out.println(lib.GetLibraryName() + " not loaded");
         }
       }
     }
     vtkNativeLibrary.DisableOutputWindow(null);
   }
-  // -----------------------------------------------------------------
-	  
+  //-----------------------------------------------------------------
 	  
-  public TextActor() {
-    super(new BorderLayout());
-	   
-	   
+
+  public static void main(String s[]) 
+  {
     vtkNamedColors Color = new vtkNamedColors(); 
     //For Actor Color
     double ActorColor[] = new double[4];
     //For Renderer Background Color
-    double BgColor[] = new double[4];
-	   
-	   
+    double Bgcolor[] = new double[4];
+
+
     //Change Color Name to Use your own Color for Change Actor Color
     Color.GetColor("Red",ActorColor);
     //Change Color Name to Use your own Color for Renderer Background
-    Color.GetColor("Black",BgColor);
+    Color.GetColor("Black",Bgcolor);
 
-   
     vtkTextActor Text = new vtkTextActor();
     Text.SetInput("Hello World");
     Text.SetDisplayPosition(20, 30);
@@ -60,39 +49,22 @@ public class TextActor extends JPanel implements ActionListener {
     Text.GetTextProperty().ShadowOn();
     Text.GetTextProperty().GetShadowOffset();
     Text.GetTextProperty().SetColor(ActorColor);
-	  
-  
-    renWin = new vtkPanel();
-    renWin.GetRenderer().AddActor(Text);
-    renWin.resetCamera();
-    renWin.GetRenderer().SetBackground(BgColor);
-	  
-    // Add Java UI components
-    exitButton = new JButton("Exit");
-    exitButton.addActionListener(this);
 
-    add(renWin, BorderLayout.CENTER);
-    add(exitButton, BorderLayout.SOUTH);
-  }
+    // Create the renderer, render window and interactor.
+    vtkRenderer ren = new vtkRenderer();
+    vtkRenderWindow renWin = new vtkRenderWindow();
+    renWin.AddRenderer(ren);
+    vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
+    iren.SetRenderWindow(renWin);
 
-  /** An ActionListener that listens to the button. */
-  public void actionPerformed(ActionEvent e) {
-    if (e.getSource().equals(exitButton)) {
-      System.exit(0);
-    }
-  }
+    // Visualize the Actor
+    ren.AddActor(Text);
+    ren.SetBackground(Bgcolor);
 
-  public static void main(String s[]) {
-    SwingUtilities.invokeLater(new Runnable() {
-        public void run() {
-          JFrame frame = new JFrame("Text Actor");
-          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-          frame.getContentPane().setLayout(new BorderLayout());
-          frame.getContentPane().add(new TextActor(), BorderLayout.CENTER);
-          frame.setSize(400, 400);
-          frame.setLocationRelativeTo(null);
-          frame.setVisible(true);
-        }
-      });
+    renWin.SetSize(300, 300);
+    renWin.Render();
+
+    iren.Initialize();
+    iren.Start();
   }
 }