GLDrawable

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Sourc code of gl4java.drawable.GLDrawable

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gl4java.drawable
Interface GLDrawable

public interface GLDrawable

Abstracts common functionality among the OpenGL components such as GLCanvas and GLJPanel. The GLDrawable/GLEventListener interfaces allow client code to draw using OpenGL without subclassing.

Method Summary

void addComponentListener(java.awt.event.ComponentListener l)
          the components listener's should be implemented also ! since JDK 1.1

void addFocusListener(java.awt.event.FocusListener l)


void addGLEventListener(GLEventListener listener)
          Add a GLEventListener to this drawable.

void addKeyListener(java.awt.event.KeyListener l)


void addMouseListener(java.awt.event.MouseListener l)


void addMouseMotionListener(java.awt.event.MouseMotionListener l)


void display()
          This is the rendering-method called by e.g.: GLCanvas.display()>GLCanvas.display() 55 or by GLRunnable.run()>GLRunnable.run() 55 .

gl4java.GLFunc getGL()
          Gets the GL functions used by this drawable.

gl4java.GLContext getGLContext()
          Used to return the created GLContext

gl4java.GLUFunc getGLU()
          Gets the GLU functions used by this drawable.

void removeComponentListener(java.awt.event.ComponentListener l)


void removeFocusListener(java.awt.event.FocusListener l)


void removeGLEventListener(GLEventListener listener)
          Remove a GLEventListener from this drawable.

void removeMouseListener(java.awt.event.MouseListener l)


void removeMouseMotionListener(java.awt.event.MouseMotionListener l)


void repaint()
          this function can be called to force a repaint Repaints this component.

Method Detail

addGLEventListener

public void addGLEventListener(GLEventListener listener)

Add a GLEventListener to this drawable. If multiple listeners are added to a given drawable, they are notified of events in an arbitrary order.

removeGLEventListener

public void removeGLEventListener(GLEventListener listener)

Remove a GLEventListener from this drawable.

getGL

public gl4java.GLFunc getGL()

Gets the GL functions used by this drawable. When running on JDK 1.4 this will return a gl4java.GLFunc14.

getGLU

public gl4java.GLUFunc getGLU()

Gets the GLU functions used by this drawable. When running on JDK 1.4 this will return a gl4java.GLUFunc14.

getGLContext

public gl4java.GLContext getGLContext()

Used to return the created GLContext

display

public void display()

This is the rendering-method called by e.g.: GLCanvas.display()>GLCanvas.display() 55 or by GLRunnable.run()>GLRunnable.run() 55 .

The default implementation of display() sends preDisplay, display and postDisplay events to all GLEventListeners associated with this GLDrawable in the above order.

        reset timer for frame duration

        for_all(gl4java.drawable.GLEventListener)
                SEND preDisplay

        if( gljMakeCurrent() )
        {
                for_all(gl4java.drawable.GLEventListener)
                        SEND display
                gljSwap()
                gljFree()

                for_all(gl4java.drawable.GLEventListener)
                        SEND postDisplay
        }

        stop timer for frame duration

If you use the subclassing model (as opposed to the GLEventListener model), your subclass will redefine this to perform its OpenGL drawing. In this case you MUST encapsulate your OpenGL calls within:

        - glj.gljMakeCurrent()
                YOUR OpenGL commands here !
        - glj.gljFree()

repaint

public void repaint()

this function can be called to force a repaint Repaints this component. This method causes a call to this component's update method as soon as possible.

addComponentListener

public void addComponentListener(java.awt.event.ComponentListener l)

the components listener's should be implemented also ! since JDK 1.1

removeComponentListener

public void removeComponentListener(java.awt.event.ComponentListener l)

addFocusListener

public void addFocusListener(java.awt.event.FocusListener l)

addKeyListener

public void addKeyListener(java.awt.event.KeyListener l)

removeFocusListener

public void removeFocusListener(java.awt.event.FocusListener l)

addMouseListener

public void addMouseListener(java.awt.event.MouseListener l)

removeMouseListener

public void removeMouseListener(java.awt.event.MouseListener l)

addMouseMotionListener

public void addMouseMotionListener(java.awt.event.MouseMotionListener l)

removeMouseMotionListener

public void removeMouseMotionListener(java.awt.event.MouseMotionListener l)