import edu.berkeley.qfat.geom.*;
import edu.berkeley.qfat.geom.Point;
-public class MeshViewer extends Viewer {
+public class MeshViewer implements GLEventListener, MouseListener, MouseMotionListener, KeyListener, MouseWheelListener {
- public MeshViewer(JFrame f) { super(f); }
+ Mesh.Vertex closest = null;
+
+ private HashSet<Mesh> meshes = new HashSet<Mesh>();
+ public synchronized void addMesh(Mesh m) { meshes.add(m); }
+ public synchronized void removeMesh(Mesh m) { meshes.remove(m); }
+
+ private int mousex;
+ private int mousey;
+ private Matrix projection = null;
+ private Point clickPoint = null;
+
+ GLCanvas glcanvas;
+
+ Point clickClosest = null;
+
+ float tz = 0;
+ float anglex = 0;
+ float angley = 0;
+
+ boolean alt = false;
+ boolean shift = false;
+ boolean control = false;
+
+ public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
+ public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { }
+
+ public synchronized void init(GLAutoDrawable gld) {
+ GL gl = gld.getGL();
+ gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+ gl.glViewport(0, 0, 500, 300);
+ gl.glEnable(GL.GL_DEPTH_TEST);
+ gl.glClearDepth(1.0);
+ gl.glDepthFunc(GL.GL_LEQUAL);
+ gl.glMatrixMode(GL.GL_PROJECTION);
+ gl.glLoadIdentity();
+ gl.glMatrixMode(GL.GL_MODELVIEW);
+
+ float mat_specular[] = { 0.5f, 0.5f, 0.5f, 0.5f };
+ float mat_shininess[] = { 50.0f };
+ gl.glShadeModel(GL.GL_SMOOTH);
+ //gl.glMaterialfv(GL.GL_FRONT, GL.GL_DIFFUSE, mat_specular, 0);
+ //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SPECULAR, mat_specular, 0);
+ //gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT, new float[] { 0.3f, 0.3f, 0.3f, 0.3f }, 0);
+ //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SHININESS, mat_shininess, 0);
+ gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { 1.0f, 4.0f, -10.0f, 0.0f }, 0);
+ gl.glLightfv(GL.GL_LIGHT1, GL.GL_POSITION, new float[] { -10.0f, 10.0f, 10.0f, 0.0f }, 0);
+ gl.glLightfv(GL.GL_LIGHT2, GL.GL_POSITION, new float[] { 10.0f, -10.0f, 10.0f, 0.0f }, 0);
+ gl.glLightfv(GL.GL_LIGHT3, GL.GL_POSITION, new float[] { 10.0f, 10.0f, -10.0f, 0.0f }, 0);
+ gl.glLightfv(GL.GL_LIGHT4, GL.GL_POSITION, new float[] { -10.0f, 10.0f, -10.0f, 0.0f }, 0);
+ gl.glLightfv(GL.GL_LIGHT5, GL.GL_POSITION, new float[] { 10.0f, -10.0f, -10.0f, 0.0f }, 0);
+ gl.glEnable(GL.GL_LIGHTING);
+ gl.glEnable(GL.GL_LIGHT0);
+
+ gl.glColorMaterial(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT_AND_DIFFUSE);
+ gl.glEnable(GL.GL_COLOR_MATERIAL);
+
+ display(gld);
+ }
+
+ public synchronized final void display(GLAutoDrawable drawable) {
+ GL gl = drawable.getGL();
+ glcanvas.setSize(glcanvas.getParent().getWidth(), glcanvas.getParent().getHeight() - 100);
+
+ GLU glu = new GLU();
+ gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
+ gl.glPointSize(5.0f);
+ gl.glLoadIdentity();
+ glu.gluPerspective(50, ((float)drawable.getWidth())/drawable.getHeight(), 0.5, 10);
+
+ glu.gluLookAt(0, 0, -((tz/10)-1), 0, 0, 0, 0, 1, 0);
+ gl.glRotatef(anglex/3, 0, 1, 0);
+ gl.glRotatef(-(angley/3), 1, 0, 0);
+
+ for(Mesh mesh : meshes)
+ mesh.render(gl, Matrix.ONE);
+
+ // highlight the point closest to the mouse; we do this here to avoid flicker
+ gl.glDisable(GL.GL_LIGHTING);
+ gl.glShadeModel(GL.GL_FLAT);
+ if (closest != null) {
+ gl.glColor3f(1,1,1);
+ gl.glBegin(gl.GL_POINTS);
+ closest.getPoint().glVertex(gl);
+ gl.glEnd();
+ }
+
+ // update vertex visibilities
+ // FIXME: only do this when we switch into vertex-finding mode
+ updateVisibility(gl);
+
+ Matrix projection = Matrix.getProjectionMatrix(gl);
+ double dist = Double.MAX_VALUE;
+ if (getMouseClick() != null) return;
+ closest = null;
+ for(Mesh mesh : meshes)
+ if (mesh.option_selectable)
+ for(Mesh.Vertex v : mesh.vertices()) {
+ if (!v.visible) continue;
+ Point p = projection.times(v.getPoint());
+ int x = (int)p.x;
+ int y = (int)p.y;
+ int mousex = (int)getMouse().x;
+ int mousey = (int)getMouse().y;
+ if (closest==null || (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey) < dist) {
+ dist = (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey);
+ closest = v;
+ }
+ }
+
+ projection = Matrix.getProjectionMatrix(gl);
+ }
+
+ protected synchronized void updateVisibility(GL gl) {
+ Matrix projection = Matrix.getProjectionMatrix(gl);
+ IntBuffer buf = ByteBuffer.allocateDirect(9*4*4).order(ByteOrder.nativeOrder()).asIntBuffer();
+ gl.glFlush();
+ gl.glDrawBuffer(GL.GL_BACK);
+ gl.glReadBuffer(GL.GL_BACK);
+ gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, 1);
+ gl.glFlush();
+ gl.glDisable(GL.GL_LIGHTING);
+ gl.glShadeModel(GL.GL_FLAT);
+ gl.glColor3f(0,0,0);
+ gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
+ for(Mesh mesh : meshes) mesh.render(gl, Matrix.ONE);
+ for(Mesh mesh : meshes)
+ if (mesh.option_selectable)
+ for(Mesh.Vertex v : mesh.vertices()) {
+ Point p = v.getPoint();
+ gl.glColor3f(1,1,1);
+ gl.glBegin(gl.GL_POINTS);
+ p.glVertex(gl);
+ gl.glEnd();
+ gl.glFlush();
+
+ Point projected = projection.times(p);
+ gl.glReadPixels((int)projected.x-1, (int)projected.y-1, 3, 3, gl.GL_RGB, gl.GL_UNSIGNED_BYTE, buf);
+
+ boolean vis = false;
+ for(int j=0; j<9*4; j++) vis |= buf.get(j)!=0;
+ v.visible = vis;
+ if (vis) {
+ gl.glColor3f(0,0,0);
+ gl.glBegin(gl.GL_POINTS);
+ p.glVertex(gl);
+ gl.glEnd();
+ }
+ }
+ gl.glShadeModel(GL.GL_SMOOTH);
+ gl.glEnable(GL.GL_LIGHTING);
+ gl.glDrawBuffer(GL.GL_FRONT);
+ }
+
+ /** return the position of the mouse as a point in window-space */
+ public Point getMouse() {
+ return new Point(mousex, glcanvas.getHeight()-mousey, 0);
+ }
+
+ /** return the position where the mouse button was pressed, or null if it is not currently pressed */
+ public Point getMouseClick() {
+ return clickPoint;
+ }
+
+ public void mouseWheelMoved(MouseWheelEvent e) {
+ tz -= e.getWheelRotation();
+ }
+
+ public void keyTyped(KeyEvent e) { }
+ public void keyPressed(KeyEvent e) {
+ switch(e.getKeyCode()) {
+ case KeyEvent.VK_CONTROL: control = true; break;
+ case KeyEvent.VK_ALT: alt = true; break;
+ case KeyEvent.VK_SHIFT: shift = true; break;
+ }
+ }
+
+ public void keyReleased(KeyEvent e) {
+ switch(e.getKeyCode()) {
+ case KeyEvent.VK_CONTROL: control = false; break;
+ case KeyEvent.VK_ALT: alt = false; break;
+ case KeyEvent.VK_SHIFT: shift = false; break;
+ }
+ }
+
+ public void mouseClicked(MouseEvent e) { }
+ public void mouseEntered(MouseEvent e) { }
+ public void mouseExited(MouseEvent e) { }
+ public void mousePressed(MouseEvent e) {
+ clickPoint = getMouse();
+ clickClosest = closest == null ? null : closest.getPoint();
+ }
+
+ public void mouseReleased(MouseEvent e) {
+ clickPoint = null;
+ clickClosest = null;
+ }
+
+ public void mouseMoved(MouseEvent e) {
+ mousex = e.getX();
+ mousey = e.getY();
+ }
+
+ public void mouseDragged(MouseEvent e) {
+ if (shift) {
+ if (closest != null && projection != null && clickClosest != null) {
+ synchronized(this) {
+ Vec d1 = projection.inverse().times(getMouse()).minus(projection.inverse().times(clickPoint));
+ Vec delta = d1.plus(clickClosest).minus(closest.getPoint());
+ closest.move(delta, false);
+ }
+ }
+ } else {
+ anglex -= mousex - e.getX();
+ angley += mousey - e.getY();
+ }
+ mousex = e.getX();
+ mousey = e.getY();
+ }
+
+ public MeshViewer(JFrame f) {
+ glcanvas = new GLCanvas();
+ glcanvas.addGLEventListener(this);
+ f.add(glcanvas, BorderLayout.CENTER);
+ glcanvas.addMouseListener(this);
+ glcanvas.addMouseMotionListener(this);
+ glcanvas.addMouseWheelListener(this);
+ glcanvas.addKeyListener(this);
+ }
+
+ public void repaint() {
+ glcanvas.repaint();
+ }
}
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projects / anneal.git / blobdiff