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java painting applet

Hello,
         can anyone help I am looking for a java applet that can be used by children in a educational site.

Is there any free applets that can be used to draw paint etc but very siimply with 1 color and brush size being able to change brushes and colors is not required. ie tha ability for kids to be able to draw in a thin pencil off white color on a black background is ideal.

best wishes from New zealand
0
wampy
Asked:
wampy
  • 2
1 Solution
 
loumfCommented:
Here's source for something simple.
Draw with the mouse, erase by refreshing the page.  If you need the class file tell me your email and I'll send that and sample html

// DrawApplet
//

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


public class DrawApplet extends Applet
{
      public void init()
      {
      }

      public boolean mouseDown(Event e, int x, int y)
      {
            FDown = true;
            FX = x;
            FY = y;
            return true;
      }
      
      public boolean mouseUp(Event e, int x, int y)
      {
            FLines.addElement(new Rectangle(x,y, FX, FY));
            FDown = false;
            return true;
      }
      
      public boolean mouseDrag(Event e, int x, int y)
      {
            if (FDown) {
                  FLines.addElement(new Rectangle(x,y, FX, FY));
                  FX = x;
                  FY = y;
                  repaint(10);
            }
            return true;
      }      
      
      public void update(Graphics g)
    {
            Graphics gr;
               
            if (FOffScreenBuffer==null ||
                  (! (FOffScreenBuffer.getWidth(this) == this.size().width
                  && FOffScreenBuffer.getHeight(this) == this.size().height))) {
                  
                    FOffScreenBuffer = this.createImage(size().width, size().height);
            }

            // We need to use our buffer Image as a Graphics object:
            
            gr = FOffScreenBuffer.getGraphics();
            gr.clearRect(0,0,size().width, size().height);
            
            paint(gr);
            
            g.drawImage(FOffScreenBuffer, 0, 0, this);                  
    }

      
      public void paint(Graphics g)
      {
            g.setColor(Color.black);
            g.fillRect(0,0,getSize().width, getSize().height);
            g.setColor(Color.white);
            for (int i = 0; i < FLines.size(); ++i) {
                  Rectangle r = (Rectangle)FLines.elementAt(i);
                  g.drawLine(r.x, r.y, r.width, r.height);
            }
      }
      
      private boolean FDown = false;
      private int FX = 0;
      private int FY = 0;
      private Vector FLines = new Vector();
      private Image FOffScreenBuffer;
}
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wampyAuthor Commented:
yes if you could please send applet and sample htm im off trying to figure a compiler my email is arrowtow@es.co.nz.

are you interested in custom applet jobs?

all the best Gerald.
0
 
wampyAuthor Commented:
ok thanks ive worked it out found a programme on my linux box  guavac that compiled it aok.

for 50 more points can you show me how to make a clear screen button.

many thanks gerald
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