1 package edu.berkeley.qfat;
5 import java.awt.event.*;
7 import javax.media.opengl.*;
8 import javax.media.opengl.glu.*;
9 import com.sun.opengl.util.*;
11 import edu.berkeley.qfat.geom.*;
12 import edu.berkeley.qfat.geom.Point;
14 public abstract class Viewer implements GLEventListener, MouseListener, MouseMotionListener, KeyListener, MouseWheelListener {
16 Mesh.Vertex closest = null;
17 Matrix projection = null;
19 public Mesh tile = new Mesh(false);
20 public Mesh goal = new Mesh(false);
24 Point clickPoint = null;
25 Point clickClosest = null;
36 boolean shift = false;
37 boolean control = false;
39 public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
40 public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { }
42 public void init(GLAutoDrawable gld) {
44 gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
45 gl.glViewport(0, 0, 500, 300);
46 gl.glEnable(GL.GL_DEPTH_TEST);
48 gl.glDepthFunc(GL.GL_LEQUAL);
49 gl.glMatrixMode(GL.GL_PROJECTION);
51 gl.glMatrixMode(GL.GL_MODELVIEW);
53 float mat_specular[] = { 0.5f, 0.5f, 0.5f, 0.5f };
54 float mat_shininess[] = { 50.0f };
55 gl.glShadeModel(GL.GL_SMOOTH);
56 //gl.glMaterialfv(GL.GL_FRONT, GL.GL_DIFFUSE, mat_specular, 0);
57 //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SPECULAR, mat_specular, 0);
58 //gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT, new float[] { 0.3f, 0.3f, 0.3f, 0.3f }, 0);
59 //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SHININESS, mat_shininess, 0);
60 gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { 1.0f, 4.0f, -10.0f, 0.0f }, 0);
61 gl.glLightfv(GL.GL_LIGHT1, GL.GL_POSITION, new float[] { -10.0f, 10.0f, 10.0f, 0.0f }, 0);
62 gl.glLightfv(GL.GL_LIGHT2, GL.GL_POSITION, new float[] { 10.0f, -10.0f, 10.0f, 0.0f }, 0);
63 gl.glLightfv(GL.GL_LIGHT3, GL.GL_POSITION, new float[] { 10.0f, 10.0f, -10.0f, 0.0f }, 0);
64 gl.glLightfv(GL.GL_LIGHT4, GL.GL_POSITION, new float[] { -10.0f, 10.0f, -10.0f, 0.0f }, 0);
65 gl.glLightfv(GL.GL_LIGHT5, GL.GL_POSITION, new float[] { 10.0f, -10.0f, -10.0f, 0.0f }, 0);
66 gl.glEnable(GL.GL_LIGHTING);
67 gl.glEnable(GL.GL_LIGHT0);
69 gl.glColorMaterial(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT_AND_DIFFUSE);
70 gl.glEnable(GL.GL_COLOR_MATERIAL);
75 public abstract void _display(GLAutoDrawable drawable, GL gl);
76 public void display(GLAutoDrawable drawable) {
77 GL gl = drawable.getGL();
78 _display(drawable, gl);
79 this.projection = Matrix.getProjectionMatrix(gl);
82 /** return the position of the mouse as a point in window-space */
83 public Point getMouse() {
84 return new Point(mousex, glcanvas.getHeight()-mousey, 0);
87 public void mouseWheelMoved(MouseWheelEvent e) {
88 tz -= e.getWheelRotation();
91 public void keyTyped(KeyEvent e) { }
92 public void keyPressed(KeyEvent e) {
93 switch(e.getKeyCode()) {
94 case KeyEvent.VK_CONTROL: control = true; break;
95 case KeyEvent.VK_ALT: alt = true; break;
96 case KeyEvent.VK_SHIFT: shift = true; break;
100 public void keyReleased(KeyEvent e) {
101 switch(e.getKeyCode()) {
102 case KeyEvent.VK_CONTROL: control = false; break;
103 case KeyEvent.VK_ALT: alt = false; break;
104 case KeyEvent.VK_SHIFT: shift = false; break;
108 public void mouseClicked(MouseEvent e) { }
109 public void mouseEntered(MouseEvent e) { }
110 public void mouseExited(MouseEvent e) { }
111 public void mousePressed(MouseEvent e) {
112 clickPoint = getMouse();
113 clickClosest = closest == null ? null : closest.getPoint();
116 public void mouseReleased(MouseEvent e) {
121 public void mouseMoved(MouseEvent e) {
126 public void mouseDragged(MouseEvent e) {
129 tx += (mousex - e.getX())/(float)20;
130 ty += (mousey - e.getY())/(float)20;
132 if (closest != null && projection != null && clickClosest != null) {
134 Vec d1 = projection.inverse().times(getMouse()).minus(projection.inverse().times(clickPoint));
135 Vec delta = d1.plus(clickClosest).minus(closest.getPoint());
136 //System.out.println(delta + " " + closest.getPoint());
137 System.out.println(getMouse().minus(clickPoint));
138 closest.move(Matrix.translate(delta), true);
142 anglex -= mousex - e.getX();
143 angley += mousey - e.getY();
149 public Viewer(JFrame f) {
151 glcanvas = new GLCanvas();
152 glcanvas.addGLEventListener(this);
153 f.add(glcanvas, BorderLayout.CENTER);
154 glcanvas.addMouseListener(this);
155 glcanvas.addMouseMotionListener(this);
156 glcanvas.addMouseWheelListener(this);
157 glcanvas.addKeyListener(this);
160 public void repaint() {