Coloring a JPanel with pixels (Not Image)

Question

I wanted to create a frame in Java where I can draw any shape and color the shapes. I did the first part and now I have a problem in coloring the image. I have a frame which has a panel and I am drawing directly on the panel with drawLine() function. I want to color the shape using pixels. How to color the panel (which contains the drawing) based on pixel value?

*Note: This is not an image!! Coloring the panel. I tried many forums. But everything says about coloring an image. How to color the panel by pixels?

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.applet.*;

public class colorch extends Applet implements MouseListener {
    int oldx, oldy, x, y;
    int flag = 1;
    Panel mypanel;

    public void init() {
        mypanel = new Panel();
        add(mypanel);
        addMouseListener(this);
        Panel colorpan = new Panel();
    }

    public void mouseExited(MouseEvent e6) { }

    public void mouseEntered(MouseEvent e7) { }

    public void mousePressed(MouseEvent e8) {
        oldx = e8.getX();
        oldy = e8.getY();
    }

    public void mouseClicked(MouseEvent e) { }

    public void mouseReleased(MouseEvent e3) {
        x = e3.getX();
        y = e3.getY();
        Graphics g = getGraphics();
        g.drawLine(oldx, oldy, x, y);
    }
}

Sample Output:

enter image description here

Now I want to color inside the triangle. So I am trying to color by each pixel within this image.

Thanks.

share ur code here wat u have done for this task – Jan 22 '14 at 15:23 — , Jan 22 '14 at 15:23

score 2 · Answer 1 · edited May 23 '17 at 12:13

2

You have to implement such functionality - use flood fill algorithm.

Here is also some code from SO - Flood fill using a stack

edited May 23 '17 at 12:13

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answered Jan 22 '14 at 16:09

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Coloring a JPanel with pixels (Not Image)

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