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 abstract void _display(GLAutoDrawable drawable, GL gl);
43 public void display(GLAutoDrawable drawable) {
44 GL gl = drawable.getGL();
45 _display(drawable, gl);
46 this.projection = Matrix.getProjectionMatrix(gl);
49 /** return the position of the mouse as a point in window-space */
50 public Point getMouse() {
51 return new Point(mousex, glcanvas.getHeight()-mousey, 0);
54 public void mouseWheelMoved(MouseWheelEvent e) {
55 tz -= e.getWheelRotation();
58 public void keyTyped(KeyEvent e) { }
59 public void keyPressed(KeyEvent e) {
60 switch(e.getKeyCode()) {
61 case KeyEvent.VK_CONTROL: control = true; break;
62 case KeyEvent.VK_ALT: alt = true; break;
63 case KeyEvent.VK_SHIFT: shift = true; break;
67 public void keyReleased(KeyEvent e) {
68 switch(e.getKeyCode()) {
69 case KeyEvent.VK_CONTROL: control = false; break;
70 case KeyEvent.VK_ALT: alt = false; break;
71 case KeyEvent.VK_SHIFT: shift = false; break;
75 public void mouseClicked(MouseEvent e) { }
76 public void mouseEntered(MouseEvent e) { }
77 public void mouseExited(MouseEvent e) { }
78 public void mousePressed(MouseEvent e) {
79 clickPoint = getMouse();
80 clickClosest = closest == null ? null : closest.getPoint();
83 public void mouseReleased(MouseEvent e) {
88 public void mouseMoved(MouseEvent e) {
93 public void mouseDragged(MouseEvent e) {
96 tx += (mousex - e.getX())/(float)20;
97 ty += (mousey - e.getY())/(float)20;
99 if (closest != null && projection != null && clickClosest != null) {
101 Vec d1 = projection.inverse().times(getMouse()).minus(projection.inverse().times(clickPoint));
102 Vec delta = d1.plus(clickClosest).minus(closest.getPoint());
103 //System.out.println(delta + " " + closest.getPoint());
104 System.out.println(getMouse().minus(clickPoint));
105 closest.move(Matrix.translate(delta), true);
109 anglex -= mousex - e.getX();
110 angley += mousey - e.getY();
116 public Viewer(JFrame f) {
118 glcanvas = new GLCanvas();
119 glcanvas.addGLEventListener(this);
120 f.add(glcanvas, BorderLayout.CENTER);
121 glcanvas.addMouseListener(this);
122 glcanvas.addMouseMotionListener(this);
123 glcanvas.addMouseWheelListener(this);
124 glcanvas.addKeyListener(this);
127 public void repaint() {