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| public class ArtLab implements GLEventListener{
private float LOOK_AT_DIST = 100.0f;
private final static float FOV = 45.0f;
private final static float DEFAULT_ART_SIZE = 10.0f;
private final static float CAMERA_MOVEMENT_INCREMENT = 0.2f;
private GL gl;
private GLU glu = new GLU();
private Point3D CameraLook = new Point3D(0.0f, 1.0f, 0.0f);
private Point3D Camera = new Point3D(5.0f, 5.0f, 10.0f, 0,270,0);
private Point3D standAloneCamera = standAloneCameraReset;
private LinkedList <Plane> walls = new LinkedList <Plane> ();
private Plane floor = null;
private Plane ceiling = null;
private LinkedList <Art> artThumbNails = new LinkedList <Art> ();
private Art standAlone = null;
private HeadsUpDisplay cursor = new HeadsUpDisplay(0.50f, 0.50f, 0.064f, 0.128f);
private int room;
private int art;
private ArtLabAppletLaunch artLabTOP;
private int lastSelectedImage = -1, galleryImage = -1;
private boolean inGallery = true;
private boolean hasResetCamera = false;
public ArtLab(ArtLabAppletLaunch cg) {
cg.addKeyListener(new KeyboardListenerInterface() {
public void buttonPressed(int i){handleKeyboardInput(i);}
});
artLabTOP = cg;
}
public void init(GLAutoDrawable drawable) {
gl = drawable.getGL();
gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.glEnable(GL.GL_DEPTH_TEST);
gl.glClearDepth(1.0f);
gl.glDepthFunc(GL.GL_LEQUAL);
gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);
updateCamera();
walls.add(new Plane(15f, 5.0f, 0f,
30.0f, 10.0f, 0.0f));
walls.add(new Plane(15f, 5.0f, 30f,
30.0f, 10.0f, 0.0f));
walls.add(new Plane(0f, 5.0f, 15f,
0.0f, 10.0f, 30.0f));
walls.add(new Plane(30f, 5.0f, 15f,
0.0f, 10.0f, 30.0f));
floor = new Plane(15f, 0.0f, 15f,
30.0f, 0.0f, 30.0f);
ceiling = new Plane(15f, 10.0f, 15f,
30.0f, 0.0f, 30.0f);
artThumbNails.add(new Art(15f, 5.0f, 0.2f,
5.0f, 4.5f, 0.0f));
standAlone = new Art(0.0f, 5.0f, 0f,
5.0f, 5.0f, 0.0f);
room = gl.glGenLists(1);
art = gl.glGenLists(2);
gl.glNewList(room, GL.GL_COMPILE);
for(int index = 0; index < walls.size(); index++){
gl.glPushMatrix();
gl.glTranslatef(walls.get(index).X, walls.get(index).Y, walls.get(index).Z);
walls.get(index).draw(gl);
gl.glPopMatrix();
}
gl.glPushMatrix();
gl.glTranslatef(floor.X, floor.Y, floor.Z);
floor.draw(gl);
gl.glPopMatrix();
gl.glPushMatrix();
gl.glTranslatef(ceiling.X, ceiling.Y, ceiling.Z);
ceiling.draw(gl);
gl.glPopMatrix();
gl.glEndList();
gl.glNewList(art, GL.GL_COMPILE);
for(int index = 0; index < artThumbNails.size(); index++){
gl.glPushMatrix();
gl.glTranslatef(artThumbNails.get(index).X, artThumbNails.get(index).Y,artThumbNails.get(index).Z);
artThumbNails.get(index).draw(gl);
gl.glPopMatrix();
}
gl.glEndList();
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
GL gl = drawable.getGL();
if (height == 0){height = 1;}
gl.glViewport(x, y, width, height);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(FOV, (float)width/(float)height, 1, LOOK_AT_DIST);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
}
public void display(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glLoadIdentity();
if(inGallery){
glu.gluLookAt(Camera.X, Camera.Y, Camera.Z,
CameraLook.X, CameraLook.Y, CameraLook.Z, 0,1,0);
gl.glCallList(room);
gl.glCallList(art);
begin2D();
gl.glPushMatrix();
cursor.draw(gl);
gl.glPopMatrix();
end2D();
} else {
glu.gluLookAt(standAloneCamera.X, standAloneCamera.Y, standAloneCamera.Z,
CameraLook.X, CameraLook.Y, CameraLook.Z, 0,1,0);
gl.glPushMatrix();
gl.glTranslatef(standAlone.X, standAlone.Y, standAlone.Z);
standAlone.drawBigArt(gl);
gl.glPopMatrix();
}
gl.glFlush();
}
private void begin2D() {
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glOrtho(0.0f, 0.0f, 1.0f, 1.0f, -1.0f, 1.0f);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glPushMatrix();
gl.glLoadIdentity();
gl.glDisable(GL.GL_DEPTH_TEST);
gl.glDisable(GL.GL_LIGHTING);
}
private void end2D() {
gl.glEnable(GL.GL_LIGHTING);
gl.glEnable(GL.GL_DEPTH_TEST);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glPopMatrix();
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glPopMatrix();
}
} |
