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package vtk.rendering.jogl;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLEventListener;
import vtk.vtkGenericOpenGLRenderWindow;
import vtk.vtkObject;
import vtk.vtkRenderWindow;
import vtk.rendering.vtkAbstractComponent;
import vtk.rendering.vtkInteractorForwarder;
/**
* Provide JOGL based rendering component for VTK
*
* @author Sebastien Jourdain - sebastien.jourdain@kitware.com
*/
public class vtkAbstractJoglComponent<T extends java.awt.Component> extends vtkAbstractComponent<T> {
protected T uiComponent;
protected boolean isWindowCreated;
protected GLEventListener glEventListener;
protected vtkGenericOpenGLRenderWindow glRenderWindow;
public vtkAbstractJoglComponent(vtkRenderWindow renderWindowToUse, T glContainer) {
super(renderWindowToUse);
this.isWindowCreated = false;
this.uiComponent = glContainer;
this.glRenderWindow = (vtkGenericOpenGLRenderWindow) renderWindowToUse;
this.glRenderWindow.SetIsDirect(1);
this.glRenderWindow.SetSupportsOpenGL(1);
this.glRenderWindow.SetIsCurrent(true);
// Create the JOGL Event Listener
this.glEventListener = new GLEventListener() {
public void init(GLAutoDrawable drawable) {
vtkAbstractJoglComponent.this.isWindowCreated = true;
// Make sure the JOGL Context is current
GLContext ctx = drawable.getContext();
if (!ctx.isCurrent()) {
ctx.makeCurrent();
}
// Init VTK OpenGL RenderWindow
vtkAbstractJoglComponent.this.glRenderWindow.SetMapped(1);
vtkAbstractJoglComponent.this.glRenderWindow.SetPosition(0, 0);
vtkAbstractJoglComponent.this.setSize(drawable.getWidth(), drawable.getHeight());
vtkAbstractJoglComponent.this.glRenderWindow.OpenGLInit();
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
vtkAbstractJoglComponent.this.setSize(width, height);
}
public void display(GLAutoDrawable drawable) {
vtkAbstractJoglComponent.this.inRenderCall = true;
vtkAbstractJoglComponent.this.glRenderWindow.Render();
vtkAbstractJoglComponent.this.inRenderCall = false;
}
public void dispose(GLAutoDrawable drawable) {
vtkAbstractJoglComponent.this.Delete();
vtkObject.JAVA_OBJECT_MANAGER.gc(false);
}
};
// Bind the interactor forwarder
vtkInteractorForwarder forwarder = this.getInteractorForwarder();
this.uiComponent.addMouseListener(forwarder);
this.uiComponent.addMouseMotionListener(forwarder);
this.uiComponent.addMouseWheelListener(forwarder);
this.uiComponent.addKeyListener(forwarder);
// Make sure when VTK internaly request a Render, the Render get
// properly triggered
renderWindowToUse.AddObserver("WindowFrameEvent", this, "Render");
renderWindowToUse.GetInteractor().AddObserver("RenderEvent", this, "Render");
renderWindowToUse.GetInteractor().SetEnableRender(false);
}
public T getComponent() {
return this.uiComponent;
}
/**
* Render the internal component
*/
public void Render() {
// Make sure we can render
if (!inRenderCall) {
this.uiComponent.repaint();
}
}
/**
* @return true if the graphical component has been properly set and
* operation can be performed on it.
*/
public boolean isWindowSet() {
return this.isWindowCreated;
}
}
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