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| public class DemoTriangleRectangle {
public static final int TOP = 1<<0;
public static final int BOTTOM = 1<<1;
public static final int LEFT = 1<<2;
public static final int RIGHT = 1<<3;
private static final int B = 96;
private static final int H = 64;
private static final int WIDTH = 500;
private static final int HEIGHT = 300;
public static void main(String[] args) {
JFrame frame = new JFrame("Démo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
BufferedImage image = new BufferedImage(WIDTH,HEIGHT,BufferedImage.TYPE_INT_ARGB);
ajouteTriangle(image, DemoTriangleRectangle.TOP | DemoTriangleRectangle.LEFT);
ajouteTriangle(image, DemoTriangleRectangle.TOP | DemoTriangleRectangle.RIGHT);
ajouteTriangle(image, DemoTriangleRectangle.BOTTOM | DemoTriangleRectangle.LEFT);
ajouteTriangle(image, DemoTriangleRectangle.BOTTOM | DemoTriangleRectangle.RIGHT);
/*ajouteTriangleHautGauche(image);
ajouteTriangleHautDroite(image);
ajouteTriangleBasGauche(image);
ajouteTriangleBasDroite(image);*/
frame.add(new JLabel(new ImageIcon(image)));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static int height(int i) {
return (int) (i/(double)B * H);
//return (int) Math.round((i/(double)B * H));
}
private static void ajouteTriangle(BufferedImage image, int position) {
final boolean top;
if ( (position & DemoTriangleRectangle.TOP)==DemoTriangleRectangle.TOP ) {
top=true;
}
else if ( (position & DemoTriangleRectangle.BOTTOM)==DemoTriangleRectangle.BOTTOM ) {
top=false;
}
else {
throw new IllegalArgumentException();
}
final boolean left;
if ( (position & DemoTriangleRectangle.LEFT)==DemoTriangleRectangle.LEFT ) {
left=true;
}
else if ( (position & DemoTriangleRectangle.RIGHT)==DemoTriangleRectangle.RIGHT ) {
left=false;
}
else {
throw new IllegalArgumentException();
}
for(int i=0; i<B; i++) {
int x = left?i:WIDTH-1-i;
final int h = height(B-i);
for (int j=0; j<h; j++) {
int y = top?j:HEIGHT-1-j;
setRGB(image, x, y);
}
}
}
/*private static void ajouteTriangleHautGauche(BufferedImage image) {
for(int i=0; i<B; i++) {
final int h = height(B-i);
for (int j=0; j<h; j++) {
setRGB(image, i,j);
}
}
}*/
/*private static void ajouteTriangleHautDroite(BufferedImage image) {
int offsetX = WIDTH - B; // on décale à la fin
for(int i=offsetX; i<WIDTH; i++) {
final int h = height(i-offsetX);
for (int j=0; j<h; j++) {
setRGB(image, i,j);
}
}
}*/
/*private static void ajouteTriangleHautDroite(BufferedImage image) {
for(int i=0; i<B; i++) {
final int h = height(B-i);
for (int j=0; j<h; j++) {
setRGB(image, WIDTH-1-i,j);
}
}
}*/
/*private static void ajouteTriangleBasGauche(BufferedImage image) {
for(int i=0; i<B; i++) {
final int h = height(B-i);
for (int j=HEIGHT-h; j<HEIGHT; j++) {
setRGB(image, i,j);
}
}
}*/
/*private static void ajouteTriangleBasGauche(BufferedImage image) {
for(int i=0; i<B; i++) {
final int h = height(B-i);
for (int j=0; j<h; j++) {
setRGB(image, i, HEIGHT-1-j);
}
}
}*/
/*private static void ajouteTriangleBasDroite(BufferedImage image) {
int offsetX = WIDTH - B;
for(int i=offsetX; i<WIDTH; i++) {
final int h = height(i-offsetX);
for (int j=HEIGHT-h; j<HEIGHT; j++) {
setRGB(image, i,j);
}
}
}*/
/*private static void ajouteTriangleBasDroite(BufferedImage image) {
for(int i=0; i<B; i++) {
final int h = height(B-i);
for (int j=0; j<h; j++) {
setRGB(image, WIDTH-1-i, HEIGHT-1-j);
}
}
}*/
private static void setRGB(BufferedImage image, int i, int j) {
image.setRGB(i, j, Color.ORANGE.getRGB());
}
} |
