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package vtk.rendering.swt;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.GLRunnable;
import com.jogamp.opengl.swt.GLCanvas;
import vtk.vtkObject;
/**
* @author Joachim Pouderoux - joachim.pouderoux@kitware.com, Kitware SAS 2012
* @thanks This work was supported by CEA/CESTA
* Commissariat a l'Energie Atomique et aux Energies Alternatives,
* 15 avenue des Sablieres, CS 60001, 33116 Le Barp, France.
*/
public class vtkInternalSwtComponent extends GLCanvas implements Listener {
private vtkSwtComponent parent;
public static GLCapabilities GetGLCapabilities() {
GLCapabilities caps;
caps = new GLCapabilities(GLProfile.get(GLProfile.GL2GL3));
caps.setDoubleBuffered(true);
caps.setHardwareAccelerated(true);
caps.setSampleBuffers(false);
caps.setNumSamples(4);
return caps;
}
public vtkInternalSwtComponent(vtkSwtComponent parent, Composite parentComposite) {
super(parentComposite, SWT.NO_BACKGROUND, GetGLCapabilities(), null);
this.parent = parent;
vtkSwtInteractorForwarderDecorator forwarder = (vtkSwtInteractorForwarderDecorator) this.parent
.getInteractorForwarder();
this.addMouseListener(forwarder);
this.addKeyListener(forwarder);
this.addMouseMoveListener(forwarder);
this.addMouseTrackListener(forwarder);
this.addMouseWheelListener(forwarder);
this.addListener(SWT.Paint, this);
this.addListener(SWT.Close, this);
this.addListener(SWT.Dispose, this);
this.addListener(SWT.Resize, this);
this.IntializeRenderWindow();
}
protected void IntializeRenderWindow() {
// setCurrent(); // need to be done so SetWindowIdFromCurrentContext can
// get the current context!
// Context is not created until the first draw call. The renderer isn't
// initialized until the context is
// present.
invoke(false, new GLRunnable() {
@Override
public boolean run(GLAutoDrawable arg0) {
// This makes this thread (should be the main thread) current
getContext().makeCurrent();
parent.getRenderWindow().InitializeFromCurrentContext();
// Swapping buffers is handled by the vtkSwtComponent
parent.getRenderWindow().SwapBuffersOff();
return false;
}
});
// Swap buffers to trigger context creation
swapBuffers();
setAutoSwapBufferMode(false);
}
@Override
public void update() {
super.update();
if (isRealized()) {
parent.Render();
}
}
@Override
public void dispose() {
this.removeListener(SWT.Paint, this);
this.removeListener(SWT.Close, this);
this.removeListener(SWT.Dispose, this);
this.removeListener(SWT.Resize, this);
if (getContext().isCurrent()) {
getContext().release();
}
super.dispose();
}
@Override
public void handleEvent(Event event) {
switch (event.type) {
case SWT.Paint:
if (isRealized()) {
parent.Render();
}
break;
case SWT.Dispose:
parent.Delete();
vtkObject.JAVA_OBJECT_MANAGER.gc(false);
break;
case SWT.Close:
// System.out.println("closing");
break;
case SWT.Resize:
parent.setSize(getClientArea().width, getClientArea().height);
break;
}
}
}
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