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  1. #1
    michcan is offline Member
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    Default Help with paint program

    Hi
    I have a problem with my code... if i move the mouse quickly when drawing it just paint a lot of dots insted of painting like the brush in ms paint program..

    Help please!!! (sorry about my english)

    here is my code:

    import java.awt.*;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseMotionAdapter;
    import javax.swing.JPanel;

    public class Dibujo extends JPanel
    {
    private int cuentapuntos = 0;

    private Point puntos[]= new Point[10000];

    public Dibujo()
    {

    setBackground(Color.white);
    addMouseMotionListener(new MouseMotionAdapter() {

    public void mouseDragged (MouseEvent evento)
    {
    if (cuentapuntos < puntos.length)
    {
    puntos[cuentapuntos] = evento.getPoint();
    cuentapuntos++;
    repaint();
    }
    }
    }
    );

    }

    public void paintComponent(Graphics g)
    {
    super.paintComponent(g);

    for(int i = 0; i < cuentapuntos; i++)
    g.fillOval(puntos[i].x, puntos[i].y, 10, 10);
    }



    }

  2. #2
    DarrylBurke's Avatar
    DarrylBurke is offline Forum Police
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    Default

    Please use code tags when posting code.

    What you're seeing is what your paintComponent(...) override draws. if you want the points to be connected, draw a series of lines connecting each consecutive pair of points instead of a [10,10] oval around each point.

    You may also want to learn about Graphics2D#setStroke(...)
    Stroking and Filling Graphics Primitives (The Java™ Tutorials > 2D Graphics > Working with Geometry)

    db

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