/** 
 * Manage shapes for my Toy JOGL programs.
 * Deals with shape menu and rendering the shapes.
 */

import java.awt.*;
import java.awt.event.*; 
import javax.swing.*;
import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import com.sun.opengl.util.*;



public class ShapeManager {

    String[] shapeNames = {"Teapot","Torus","Cube","Cone","Dodecahedron","Xwing","Sphere",
			   "Tree","Function","Terrain","Bezier Patch","Revolution","CSE Logo"};
    String curShape = shapeNames[0];
    JMenu shape;

    public ShapeManager(){

	shape = new JMenu("Shape");
	for (int i = 0; i < shapeNames.length; i++){
	    JMenuItem mi = new JMenuItem(shapeNames[i]);
	    mi.addActionListener(new ActionListener() {
		    public void actionPerformed(ActionEvent e) {
			curShape = e.getActionCommand();
		    }
		});
	    shape.add(mi);
	}
    }

    public JMenu getMenu() {
	return shape;
    }
    
    public void display(GL gl, int level, boolean useWireframe){
 	GLU glu = new GLU();
        GLUquadric qobj = glu.gluNewQuadric();
        glu.gluQuadricDrawStyle(qobj, GLU.GLU_FILL);
	glu.gluQuadricTexture(qobj, true);

 	GLUT glut = new GLUT();
	//# of slices for spheres and the like based on level    
	int slices = 4* (1<<level); //1<<level is 2^level
	if (curShape.equals("Teapot")) {
            if (useWireframe) {
		glut.glutWireTeapot(1,false); 
	    } else {
		glut.glutSolidTeapot(1,false); //'false' means normals point out
	    }
	} else if (curShape.equals("Torus")) {
	    Shapes.torus(gl,0.75, 1.25, slices, slices);
	} else if (curShape.equals("Cube")) {
	    Shapes.cube(gl,1);
	} else if (curShape.equals("Cone")) {
	    glu.gluCylinder(qobj,1,0,1,slices,level+1);
	} else if (curShape.equals("Dodecahedron")) {
            if (useWireframe) {
		glut.glutWireDodecahedron(); 
	    } else {
		glut.glutSolidDodecahedron(); 
	    }
	} else if (curShape.equals("Xwing")) {
            gl.glPushMatrix();
            gl.glScaled(0.5, 0.5, 0.5);
            StarWars.xwing(gl,slices);
            gl.glPopMatrix();
	} else if (curShape.equals("Sphere")) {
	    glu.gluSphere(qobj,1,slices,slices);
	} else if (curShape.equals("Tree")) {
            gl.glPushMatrix();
	    gl.glTranslated(0,-2,0);
            gl.glScaled(0.4, 0.4, 0.4);
	    FractalTree.tree(gl,level);
            gl.glPopMatrix();
	} else if (curShape.equals("Function")) {
            gl.glPushMatrix();
	    gl.glTranslated(-0.5,0,-0.5);
            gl.glScaled(2,2,2);
	    Function2D.surface(gl,slices);
            gl.glPopMatrix();
	} else if (curShape.equals("Terrain")) {
            gl.glPushMatrix();
	    gl.glTranslated(-0.5,0,-0.5);
            gl.glScaled(2,2,2);
	    FractalTerrain.surface(gl,slices,0.2);
            gl.glPopMatrix();
	} else if (curShape.equals("Bezier Patch")) {
            gl.glPushMatrix();
	    gl.glTranslated(0,0,-0.5);
            gl.glScaled(0.6,0.6,0.6);
	    BezierPatch.patch(gl,slices);
            gl.glPopMatrix();
	} else if (curShape.equals("Revolution")) {
            gl.glPushMatrix();
	    gl.glTranslated(0,-1,0);
            gl.glScaled(2,2,2);
	    SurfaceOfRevolution.surface(gl,slices);
            gl.glPopMatrix();
	} else if (curShape.equals("CSE Logo")) {
            gl.glPushMatrix();
            gl.glScaled(0.4, 0.4, 0.4);
	    CSELogo.logo(gl);
            gl.glPopMatrix();
	}
    }

}