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package baitap;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.net.URL;
import javax.imageio.ImageIO;
import com.jogamp.opengl.awt.GLJPanel;
import javax.swing.*;
import com.jogamp.opengl.*;
import com.jogamp.opengl.util.awt.ImageUtil;
import com.jogamp.opengl.util.gl2.GLUT;
import com.jogamp.opengl.util.texture.Texture;
import com.jogamp.opengl.util.texture.awt.AWTTextureIO;
/**
* A panel of type TextureDemo displays a textured object,
* which the user can rotate by dragging the mouse. The main
* routine in this class creates a window containing six
* panels of type Texture Demo, with a variety of different
* objects and textures. The main routine shows a windoe
* that contains a TexttureDemo panel.
*/
public class drawtraidat extends GLJPanel implements GLEventListener, KeyListener {
public static void main(String[] args){
JFrame window = new JFrame("USE ARROW KES TO CHANGE OBJECTS/TEXTURES");
GLJPanel content = new drawtraidat();
window.setContentPane(content);
window.pack();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setVisible(true);
System.out.println("The left and right arrow keys will change the object.");
System.out.println("The up and down arrow keys will change the texture.");
System.out.println("The HOME key restores the original point of view.");
System.out.println("The mouse can be used to rotate the view.");
content.requestFocusInWindow();
}
private Camera camera; // Contains the current view transform and projection.
// The user can drag with the mouse to rotate the view.
private String[] textureFileNames = {
"ban-do-the-gioi-co-lon-2.jpg"
};
private Texture[] textures = new Texture[textureFileNames.length];
private final static int
SPHERE = 0;
private GLUT glut = new GLUT();
double scaleX =0;
double scaleY =0;
double scaleZ =0;
/**
* Create a TextureDemo panel to show an object with a texture, and sets up
* the camera and trackball so that the object can be rotated with the mouse.
*/
public drawtraidat() {
setPreferredSize(new Dimension(600,600));
addGLEventListener(this);
camera = new Camera();
camera.setScale(1);
camera.installTrackball(this);
addKeyListener(this);
}
/**
* This method will be called when the GLJPanel is first
* created. Here, in addition to the usual setup for 3D,
* it sets a white material color, suitable for texturing.
* It also loads, binds and enables the texture. (Since the
* one texture will be used throughout the program, it
* makes sense to do this once in the init method.)
*/
public void init(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClearColor(0,0,0,1);
gl.glEnable(GL2.GL_LIGHTING);
gl.glEnable(GL2.GL_LIGHT0);
gl.glEnable(GL2.GL_DEPTH_TEST);
gl.glLightModeli(GL2.GL_LIGHT_MODEL_TWO_SIDE, 1);
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_AMBIENT_AND_DIFFUSE, new float[] { 1,1,1,1 }, 0);
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, new float[] { 0.3f, 0.3f, 0.3f, 1 }, 0);
gl.glMateriali(GL2.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 100);
gl.glLightModeli(GL2.GL_LIGHT_MODEL_COLOR_CONTROL, GL2.GL_SEPARATE_SPECULAR_COLOR);
// I am cheating by using separate specular color, which requires OpenGL 1.2, but
// it gives nicer specular highlights on textured surfaces.
for (int i = 0; i < textureFileNames.length; i++) {
try {
URL textureURL;
textureURL = getClass().getClassLoader().getResource("textures/" + textureFileNames[i]);
if (textureURL != null) {
// textures[i] = TextureIO.newTexture(textureURL, true, null); // Alternative loader, gives upside down textures!
BufferedImage img = ImageIO.read(textureURL);
ImageUtil.flipImageVertically(img);
textures[i] = AWTTextureIO.newTexture(GLProfile.getDefault(), img, true);
textures[i].setTexParameteri(gl, GL2.GL_TEXTURE_WRAP_S, GL2.GL_REPEAT);
textures[i].setTexParameteri(gl, GL2.GL_TEXTURE_WRAP_T, GL2.GL_REPEAT);
}
}
catch (Exception e) {
e.printStackTrace();
}
}
textures[0].enable(gl);
}
/**
* Display method renders the current object, using the current texture.
*/
private void cube(GL2 gl, double size) {
gl.glPushMatrix();
SPHERE: TexturedShapes.uvSphere(gl);
gl.glPopMatrix();}
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
camera.apply(gl);
gl.glLoadIdentity();
//gl.glPushMatrix();// Set up modelview transform.
gl.glScaled(scaleX,scaleY,scaleZ);
//gl.glTranslated(1,1,1);
cube(gl,0);
}
// Extra, unused methods of the GLEventListener interface
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { }
public void dispose(GLAutoDrawable drawable) { }
/**
* Left/right arrow keys change the current object.
* Up/down arrow keys change the current texture.
* Home key restores the default camera viewpoint.
*/
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if ( key == KeyEvent.VK_UP ) {
scaleX += 0.5;
scaleY += 0.5;
scaleZ += 0.5;
;
}
else if ( key == KeyEvent.VK_DOWN ) {
scaleX -= 0.5;
scaleY -= 0.5;
scaleZ -= 0.5;
}
repaint();
}
// Extra, unused methods of the KeyListener interface.
public void keyReleased(KeyEvent e) { }
public void keyTyped(KeyEvent e) { }
}
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