MyApp

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

public class MyApp extends Applet
{
    BorderLayout esquemaOrdena;
    Panel panHerr, panCol;
    Button btnBlanco, btnNegro, btnGris, btnRojo, btnAzul, btnRosa, btnNaranja, btnVerde;
    Button btnLapiz, btnAerografo, btnOvalo, btnOvaloRell, btnRec, btnRecRell, btnLinea, btnBorrar;
    Label lblEste, lblOeste, lblCol;

    Graphics g = getGraphics();

    Point inicioLinea = new Point(0,0);

    String strHerr = "Lapiz", strCol = "Negro";
    int diaCirculo = 5, x1, x2,y1, y2, x3, x4, y3, y4, xx, yy;

    public void init()
    {
        //--- METODO DE ORDENACION ---//
        esquemaOrdena = new BorderLayout(0,0);
        setLayout(esquemaOrdena);

        lblEste = new Label();
        lblOeste = new Label();
        lblEste.setBackground(Color.gray);
        lblOeste.setBackground(Color.gray);

        add("West", lblOeste);
        add("East", lblEste);

        /*--- PANEL ---*/
        panHerr = new Panel();
        panCol = new Panel();
        panHerr.setBackground(Color.gray);
        panCol.setBackground(Color.gray);

        add("North", panHerr);
        add("South", panCol);

        /*--- HERRAMIENTAS ---*/
        setForeground(Color.blue);
        btnLapiz = new Button("Lapiz");
        btnAerografo = new Button("Aerografo");
        btnLinea = new Button("Linea");
        btnOvalo = new Button("Ovalo");
        btnOvaloRell = new Button("Ovalo Relleno");
        btnRec = new Button("Rectangulo");
        btnRecRell = new Button("Rectangulo Relleno");
        btnBorrar = new Button("Borrar");

        panHerr.add(btnLapiz);
        panHerr.add(btnAerografo);
        panHerr.add(btnLinea);
        panHerr.add(btnOvalo);
        panHerr.add(btnOvaloRell);
        panHerr.add(btnRec);
        panHerr.add(btnRecRell);
        panHerr.add(btnBorrar);

        /*--- COLORES ---*/

        lblCol =new Label("COLORES");
        lblCol.setForeground(Color.black);
        btnBlanco = new Button(" B ");
        btnBlanco.setBackground(Color.white);
        btnBlanco.setForeground(Color.white);
        btnNegro = new Button(" N ");
        btnNegro.setBackground(Color.black);
        btnNegro.setForeground(Color.black);
        btnGris = new Button(" G ");
        btnGris.setBackground(Color.gray);
        btnGris.setForeground(Color.gray);
        btnRojo = new Button(" R ");
        btnRojo.setBackground(Color.red);
        btnRojo.setForeground(Color.red);
        btnAzul = new Button(" A ");
        btnAzul.setBackground(Color.blue);
        btnAzul.setForeground(Color.blue);
        btnRosa = new Button(" P ");
        btnRosa.setBackground(Color.pink);
        btnRosa.setForeground(Color.pink);
        btnNaranja = new Button(" O ");
        btnNaranja.setBackground(Color.orange);
        btnNaranja.setForeground(Color.orange);
        btnVerde = new Button(" V ");
        btnVerde.setBackground(Color.green);
        btnVerde.setForeground(Color.green);

        panCol.add(lblCol);
        panCol.add(btnBlanco);
        panCol.add(btnNegro);
        panCol.add(btnGris);
        panCol.add(btnRojo);
        panCol.add(btnAzul);
        panCol.add(btnRosa);
        panCol.add(btnNaranja);
        panCol.add(btnVerde);


    }

    public boolean action( Event evt, Object obj)
    {
        if(evt.target instanceof Button)
        {
            /*--- HERRAMIENTAS ---*/
            if("Lapiz".equals(obj))
            {
                strHerr = "Lapiz";
            }
            if("Aerografo".equals(obj))
            {
                strHerr = "Aerografo";
            }
            if("Linea".equals(obj))
            {
                strHerr = "Linea";
            }
            if("Ovalo".equals(obj))
            {
                strHerr = "Ovalo";
            }
            if("Ovalo Relleno".equals(obj))
            {
                strHerr = "Ovalo Relleno";
            }
            if("Rectangulo".equals(obj))
            {
                strHerr = "Rectangulo";
            }
            if("Rectangulo Relleno".equals(obj))
            {
                strHerr = "Rectangulo Relleno";
            }
            if("Borrar".equals(obj))
            {
                repaint();
            }

            /*--- COLORES ---*/
            if(" B ".equals(obj))
            {
                strCol = "Blanco";
            }
            if(" N ".equals(obj))
            {
                strCol = "Negro";
            }
            if(" G ".equals(obj))
            {
                strCol = "Gris";
            }
            if(" R ".equals(obj))
            {
                strCol = "Rojo";
            }
            if(" A ".equals(obj))
            {
                strCol = "Azul";
            }
            if(" P ".equals(obj))
            {
                strCol = "Rosa";
            }
            if(" O ".equals(obj))
            {
                strCol = "Naranja";
            }
            if(" V ".equals(obj))
            {
                strCol = "Verde";
            }
        }
        return true;
    }

    /*---- EVENTO PRESIONAR MOUSE ----*/
    public boolean mouseDown(Event e, int x, int y)
    {
        x1 = x;
        y1 = y;

        inicioLinea.move(x,y);
        return true;
    }

    /*---- EVENTO ARRASTRAR MOUSE ----*/
    public boolean mouseDrag(Event e, int x, int y)
    {
        g = getGraphics();

        if(strCol == "Blanco")
        {
            g.setColor(Color.white);
        }
        if(strCol == "Negro")
        {
            g.setColor(Color.black);
        }
        if(strCol == "Gris")
        {
            g.setColor(Color.gray);
        }
        if(strCol == "Rojo")
        {
            g.setColor(Color.red);
        }
        if(strCol == "Azul")
        {
            g.setColor(Color.blue);
        }
        if(strCol == "Rosa")
        {
            g.setColor(Color.pink);
        }
        if(strCol == "Naranja")
        {
            g.setColor(Color.orange);
        }
        if(strCol == "Verde")
        {
            g.setColor(Color.green);
        }
        //--- CONDICION HERRAMIENTA ---*/
        if(strHerr == "Lapiz")
        {
            g.drawLine(inicioLinea.x, inicioLinea.y, x, y);
        }

        if(strHerr == "Aerografo")
        {
            g.fillOval(x - (diaCirculo/2), y - (diaCirculo/2), diaCirculo, diaCirculo);
        }

        inicioLinea.move(x,y);
        return true;
    }

    /*---- EVENTO LEVANTAR MOUSE ----*/
    public boolean mouseUp(Event e, int x, int y)
    {
        x2 = x;
        y2 = y;
        x3 = x1/2;
        x4 = (x2-x1)/2;
        y3 = y2/2;
        y4 = (y2-y1)/2;

        /* --- CONDICIONES DE FIGURAS ---*/
        if(strHerr == "Linea")
        {
            g.drawLine(x1, y1, x2, y2);
        }
        if(x2<x1 && y2<y1)
        {
            xx = x1;
            x1 = x2;
            x2 = xx;
            yy = y1;
            y1 = y2;
            y2 = yy;
        }
        if(x2<x1 && y2>y1)
        {
            xx = x1;
            x1 = x2;
            x2 = xx;
        }
        if(x2>x1 && y2<y1)
        {
            yy = y1;
            y1 = y2;
            y2 = yy;
        }

        if(strHerr == "Ovalo")
        {
            g.drawOval(x1, y1, x2-x1, y2-y1);
        }

        if(strHerr == "Ovalo Relleno")
        {
            g.fillOval(x1, y1, x2-x1, y2-y1);
        }

        if(strHerr == "Rectangulo")
        {
            g.drawRect(x1, y1, x2-x1, y2-y1);
            g.drawRect(x1, y1, x3, y4);
        }

        if(strHerr == "Rectangulo Relleno")
        {
            g.fillRect(x1, y1, x2-x1, y2-y1);
        }
        return true;
    }

    public static void main (String args[]) {

        new MyApp();

    }


} // fin del metodo