how can i draw image pixel by pixel to jframe
I'm a beginner in Java and to this day I try to do what I want. So the day has come;
I have arranged all the pixels of the image as rgb. I want to click a button to have an animated image created pixel by pixel.
Here's what I did and it doesn't work;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
public class pixell extends JFrame {
int x = 0;
int y = 0;
JButton btn;
JButton btn2;
JButton btn3;
JLabel lbl1;
File file = new File("C:\\Users\\Gok\\Desktop\\df.jpg");
BufferedImage image = ImageIO.read(file);
int w = image.getWidth();
int h = image.getHeight();
int[][] rp = new int[w][(h)];
BufferedImage rsm = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
JLabel background;
ImageIcon img = new ImageIcon(rsm);
JPanel jp;
public pixell() throws IOException {
// TODO Auto-generated constructor stub
this.setSize(612, 612);
this.setLayout(null);
btn = new JButton("al");
btn2 = new JButton("yaz");
btn.setBounds(100, 100, 100, 100);
btn2.setBounds(100, 200, 100, 100);
background = new JLabel(img);
background.setBounds(10, 10, w, h);
this.add(btn);
this.add(btn2);
this.add(background);
btn.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
// Getting pixel color by position x and y
int clr = image.getRGB(i, j);
int red = (clr & 0x00ff0000) >> 16;
int green = (clr & 0x0000ff00) >> 8;
int blue = clr & 0x000000ff;
rp[i][j] = clr;
}
}
}
});
btn2.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
rsm.setRGB(i, j, rp[i][j]);
jp.setVisible(false);
jp.revalidate();
jp.repaint();
jp.setVisible(true);
jp.revalidate();
jp.repaint();
}
}
}
});
}
}
how can i draw image pixel by pixel to jframe
Arrays are not required.
One BufferedImagehas getRGB(...)and setRGB(...)method. So you can create two BufferedImages. One will contain the full image and the other will contain an empty BufferedImage to use as ImageIconyours JLabel.
Then you need to create one Swing Timer. Every time the timer fires, you need to get the next pixel and add it to an empty BufferedImage.
In the constructor of the class you can create the Timer with the following code:
timer = new Timer(20, new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
emptyBI.setRGB(row, column, originalBI.getRGB(row, column);
label.repaint();
column++;
if (column >= originalBI.getWidth()
{
row++;
column = 0;
}
if (row >= originalBI.getHeight()
{
Timer timer = (Timer)e.getSource();
timer.stop();
}
}
});
The variables "timer, row, column, originalBI, emptyBI, label" will all be instance variables in your class.
So now when the button is clicked, you can simply call timer.start().
Read the section on how to use the Swing timer in the Swing tutorial for more information and examples.