2. Kemudian buat class Main.java yang digunakan untuk membuat boad atau papan gambar sebagai berikut:
package graphics;
/*
* Author : Novida Wayan Sari
* Program Name : Main
* Description : This program integrate component JPanel
* that used for drawing graphics like
* Line Bresenham and also
* coloring the component
*/
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main implements ActionListener{
//Attributes
private static ArrayList<int[]> coord = new ArrayList<int[]>();
private static ArrayList<int[]> coord2 = new ArrayList<int[]>();
//Main Program
public static void main(String [] Args) throws Exception{
JFrame frame=new JFrame("My Graphics Board");
frame.setSize(700, 500);
frame.setVisible(true);
frame.getContentPane().setBackground(Color.BLACK);
//Buttons Declaration
final JButton btn_color1=new JButton();
final JButton btn_color2=new JButton();
final JButton btn_color3=new JButton();
final JButton btn_color4=new JButton();
//Panel Component as Board for drawing
JPanel panel=new JPanel(){
/**
*
*/
private static final long serialVersionUID = 1L;
Point point_start=null; //for collect point value when mouse pressed
Point point_end=null; //for collect point value when mouse Released
Point point_end2=null; //for collect point value when mouse Dragged
//it need for animation when mouse Dragged
int status_graph=1;
int status_color=1;
//Mouse Listener for Button
{
btn_color1.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
status_color=1;
}
});
btn_color2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
status_color=2;
}
});
btn_color3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
status_color=3;
}
});
btn_color4.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
status_color=4;
}
});
}
Bresenham bresenham=new Bresenham();
{
addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
point_start=e.getPoint();
}
public void mouseReleased(MouseEvent e){
point_end=e.getPoint();
int[] points = {(int)point_start.getX(),(int)point_start.getY(),(int)point_end.getX(),(int)point_end.getY(),status_graph,status_color};
coord.add(points);
repaint();
}
});
addMouseMotionListener(new MouseAdapter(){
public void mouseDragged(MouseEvent e){
point_end2=e.getPoint();
int[] points2 = {(int)point_start.getX(),(int)point_start.getY(),(int)point_end2.getX(),(int)point_end2.getY(),status_graph,status_color};
coord2.add(points2);
repaint();
}
});
}
public void paintComponent(Graphics g){
for (int[] points2 : coord2) {
if((int)points2[5]==1){
g.setColor(Color.BLUE);
}else if((int)points2[5]==2){
g.setColor(Color.GREEN);
}else if((int)points2[5]==3){
g.setColor(Color.RED);
}else{
g.setColor(Color.YELLOW);
}
super.paintComponent(g);
bresenham.drawBresenham(g, (int)points2[0], (int)points2[1], (int)points2[2], (int)points2[3]);
}
g.drawString(" ------", 0, 15);
g.drawString(" ------", 0, 30);
g.drawString(" ------", 0, 45);
g.drawString(" ------", 0, 60);
g.drawString("Novida's Paint Board", 480, 15);
g.drawString("Choose Color", 500, 65);
}
public void paint(Graphics i){
super.paint(i);
for (int[] points : coord) {
if((int)points[5]==1){
i.setColor(Color.BLUE);
}else if((int)points[5]==2){
i.setColor(Color.GREEN);
}else if((int)points[5]==3){
i.setColor(Color.RED);
}else{
i.setColor(Color.YELLOW);
}
bresenham.drawBresenham(i, (int)points[0], (int)points[1], (int)points[2], (int)points[3]);
}
}
}; //End of Panel
panel.add(btn_color1);
panel.add(btn_color2);
panel.add(btn_color3);
panel.add(btn_color4);
ImageIcon icon5=new ImageIcon("images/color_blue.png");
ImageIcon icon6=new ImageIcon("images/color_orange.png");
ImageIcon icon7=new ImageIcon("images/color_red.png");
ImageIcon icon8=new ImageIcon("images/color_yellow.png");
btn_color1.setIcon(icon5);
btn_color1.setContentAreaFilled( false );
btn_color2.setIcon(icon6);
btn_color2.setContentAreaFilled( false );
btn_color3.setIcon(icon7);
btn_color3.setContentAreaFilled( false );
btn_color4.setIcon(icon8);
btn_color4.setContentAreaFilled( false );
panel.setBackground(Color.BLACK);
panel.setForeground(Color.BLACK);
frame.add(panel);
frame.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
}
}
