=?iso-8859-1?Q?D=FAvida?=

[Bruno Mar�al Lacerda Fonseca]

Pessoal, 

Caso algu�m tenha paci�ncia e um tempo sobrando gostaria que analizassem o
seguinte c�digo e me dissesse porque minha
mensagem n�o aparece na tela e minha imagem aparece, mas s� depois que dou
um "Refresh" no navegador.


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


public class vega extends Applet implements Runnable
{
        Graphics g;
        Image background;
        int width;
        int height;
        boolean done_loading_image = true;

        Thread my_thread = null;
        boolean thread_running = true;

        String message = "Ferrari F-550";
        int message_length;
        char char_array[];


        public void init()
        {
                g = getGraphics();
                background = getImage(getCodeBase(), "ferrari550.jpg");
                
                Image offScrImage = createImage(size().width,
size().height);
                Graphics offScrGC = offScrImage.getGraphics();
                
                String parameter = getParameter("MESSAGE");
                if (parameter != null)
                message = parameter;
                
                message_length = message.length();
                char_array = new char[message_length];
                message.getChars(0, message_length, char_array, 0);
        }


        public void start()
        {
                if (my_thread == null)
                my_thread = new Thread(this);
        }


        public void run_thread()
        {
                if (!thread_running)
                {
                        my_thread.start();
                        thread_running = true;
                }
        }


        void delay()
        {
                try
                {
                        Thread.sleep(300);
                }
                catch (InterruptedException e)
                {
                }
        }       
        

        public void run()
        {
                repaint();
                int red_character = 0;
                Font font = new Font("Courier New", Font.BOLD, 20);
                g.setFont(font);
                
                FontMetrics font_metrics = g.getFontMetrics();
                
                int string_width = font_metrics.stringWidth(message);
                int string_height = font_metrics.getHeight();
                
                while (true)
                {
                        int x = (width - string_width)/2;
                        g.setColor(Color.white);
                        g.fillRect(x, height+10, string_width,
string_height);

                        for (int i = 0; i < message_length; i++)
                        {
                                if (i == red_character)
                                g.setColor(Color.red);

                                else
                                        g.setColor(Color.black);
                                        g.drawChars(char_array, i, 1, x,
height+30);
                                        x +=
font_metrics.charWidth(char_array[i]);
                        }

                        if (++red_character == message_length)
                        red_character = 0;
                        
                                else
                                        while (char_array[red_character] ==
' ')
                                        red_character++;
                        delay();
                }
        }


        public boolean imageUpdate(Image img, int infoflags, int x, int y,
int w, int h)
        {
                if (infoflags == ALLBITS)
                {
                        width = background.getWidth(this);
                        height = background.getHeight(this);
                        resize(width, height+40);

                        done_loading_image = false;
                        repaint();

                        run_thread();

                        return true;
                }
                
                        else
                                return false;
        }


        public void paint(Graphics g)
        {
                if (!done_loading_image)
                showStatus("loading image...");
                
                else
                {
                        showStatus("Image done");
                        g.drawImage(background, 0, 0, null);
                }
        }
}

Bruno Mar�al Lacerda Fonseca
Desenvolvedor - ICQ: 65526070
TBA Inform�tica Ltda

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