vtk.rendering/src/vtk/rendering/swt/vtkInternalSwtComponent.java

   1 package vtk.rendering.swt;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.widgets.Composite;
   5 import org.eclipse.swt.widgets.Event;
   6 import org.eclipse.swt.widgets.Listener;
   7
   8 import com.jogamp.opengl.GLAutoDrawable;
   9 import com.jogamp.opengl.GLCapabilities;
  10 import com.jogamp.opengl.GLProfile;
  11 import com.jogamp.opengl.GLRunnable;
  12 import com.jogamp.opengl.swt.GLCanvas;
  13
  14 import vtk.vtkObject;
  15
  16 /**
  17  * @author    Joachim Pouderoux - joachim.pouderoux@kitware.com, Kitware SAS 2012
  18  * @copyright This work was supported by CEA/CESTA
  19  *            Commissariat a l'Energie Atomique et aux Energies Alternatives,
  20  *            15 avenue des Sablieres, CS 60001, 33116 Le Barp, France.
  21  */
  22 public class vtkInternalSwtComponent extends GLCanvas implements Listener {
  23
  24   private vtkSwtComponent parent;
  25
  26   public static GLCapabilities GetGLCapabilities() {
  27     GLCapabilities caps;
  28     caps = new GLCapabilities(GLProfile.get(GLProfile.GL2GL3));
  29     caps.setDoubleBuffered(true);
  30     caps.setHardwareAccelerated(true);
  31     caps.setSampleBuffers(true);
  32
  33     caps.setRedBits(8);
  34     caps.setGreenBits(8);
  35     caps.setBlueBits(8);
  36     caps.setAlphaBits(8);
  37     caps.setDepthBits(24);
  38     caps.setStencilBits(8);
  39
  40 //    caps.setAccumRedBits(8);
  41 //    caps.setAccumGreenBits(8);
  42 //    caps.setAccumBlueBits(8);
  43 //    caps.setAccumAlphaBits(8);
  44 //
  45 //    caps.setBitmap(true);
  46 //    caps.setOnscreen(true);
  47
  48
  49     //caps.setPBuffer(true);
  50     //caps.setFBO(true);
  51     caps.setNumSamples(4);
  52
  53
  54
  55     return caps;
  56   }
  57
  58   public vtkInternalSwtComponent(vtkSwtComponent parent, Composite parentComposite) {
  59
  60     super(parentComposite, SWT.NO_BACKGROUND, GetGLCapabilities(), null);
  61     this.parent = parent;
  62
  63     vtkSwtInteractorForwarderDecorator forwarder = (vtkSwtInteractorForwarderDecorator) this.parent
  64       .getInteractorForwarder();
  65
  66     this.addMouseListener(forwarder);
  67     this.addKeyListener(forwarder);
  68     this.addMouseMoveListener(forwarder);
  69     this.addMouseTrackListener(forwarder);
  70     this.addMouseWheelListener(forwarder);
  71
  72     this.addListener(SWT.Paint, this);
  73     this.addListener(SWT.Close, this);
  74     this.addListener(SWT.Dispose, this);
  75     this.addListener(SWT.Resize, this);
  76
  77     this.IntializeRenderWindow();
  78   }
  79
  80   protected void IntializeRenderWindow() {
  81
  82     // setCurrent(); // need to be done so SetWindowIdFromCurrentContext can
  83     // get the current context!
  84     // Context is not created until the first draw call. The renderer isn't
  85     // initialized until the context is
  86     // present.
  87     invoke(false, new GLRunnable() {
  88
  89       @Override
  90       public boolean run(GLAutoDrawable arg0) {
  91         // This makes this thread (should be the main thread) current
  92         getContext().makeCurrent();
  93         parent.getRenderWindow().InitializeFromCurrentContext();
  94         // Swapping buffers is handled by the vtkSwtComponent
  95         parent.getRenderWindow().SwapBuffersOff();
  96         return false;
  97       }
  98     });
  99
 100     // Swap buffers to trigger context creation
 101     swapBuffers();
 102     setAutoSwapBufferMode(false);
 103   }
 104
 105   @Override
 106   public void update() {
 107     super.update();
 108     if (isRealized()) {
 109       parent.Render();
 110     }
 111   }
 112
 113   @Override
 114   public void dispose() {
 115     this.removeListener(SWT.Paint, this);
 116     this.removeListener(SWT.Close, this);
 117     this.removeListener(SWT.Dispose, this);
 118     this.removeListener(SWT.Resize, this);
 119
 120     if (parent != null) {
 121         parent.getRenderer().DrawOff();
 122         parent.Delete();
 123         vtkObject.JAVA_OBJECT_MANAGER.gc(false);
 124         parent = null;
 125     }
 126
 127     if (getContext() != null && getContext().isCurrent()) {
 128       getContext().release();
 129     }
 130
 131     super.dispose();
 132   }
 133
 134   @Override
 135   public void handleEvent(Event event) {
 136     switch (event.type) {
 137     case SWT.Paint:
 138       if (isRealized()) {
 139         parent.Render();
 140       }
 141       break;
 142     case SWT.Dispose:
 143       parent.Delete();
 144       vtkObject.JAVA_OBJECT_MANAGER.gc(false);
 145       break;
 146     case SWT.Close:
 147       break;
 148     case SWT.Resize:
 149       parent.setSize(getClientArea().width, getClientArea().height);
 150       break;
 151     }
 152   }
 153 }