import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import javax.swing.*;
import javax.imageio.*;
import java.io.*;


class Bild extends JComponent {
  Datei file;
  BMPHexEditor parent;
  Image image;
  int zoom=100;
  int posx =2;
  int posy =2;
  

  /*
  class myKeyListener implements  KeyListener
  {
    public void keyPressed( KeyEvent k )
    {
      int iHeight = getSize().height;

      if (k.getKeyCode()==8)  delete(-1);
      if (k.getKeyCode()==127) delete(0);
      if (k.getKeyCode()==37) movePos(-1);
      if (k.getKeyCode()==39) movePos(1);
      if (k.getKeyCode()==38) movePos(-proZeile);
      if (k.getKeyCode()==40) movePos(proZeile);
      if (k.getKeyCode()==33) movePos(-proZeile*(iHeight/hoehe));
      if (k.getKeyCode()==34) movePos(proZeile*(iHeight/hoehe));

    }
    public void keyReleased(KeyEvent k){}

    public void keyTyped(KeyEvent k){
      // System.out.println(  "Typed:"+k.getKeyCode()+"|"+k.getKeyChar() );
      switch(modus) {
        case 1: {
          if (k.getKeyChar()>='0' && k.getKeyChar()<='1') modifyByte(k.getKeyChar());
          break;
        }
        case 2: {
          if (k.getKeyChar()>='0' && k.getKeyChar()<='9') modifyByte(k.getKeyChar());
          if (k.getKeyChar()>='a' && k.getKeyChar()<='f') modifyByte(k.getKeyChar());
          if (k.getKeyChar()>='A' && k.getKeyChar()<='F') modifyByte(k.getKeyChar());
          break;
        }
        default: {
          if (k.getKeyCode()!= 127) modifyByte(k.getKeyChar());
        }
      }
    }
  }   */

  class myMouseListener implements MouseListener
  {
    public void mouseClicked( MouseEvent e )
    {

    }
    public void mouseExited(MouseEvent e) {
    }
    public void mouseEntered(MouseEvent e) {
    }
    public void mousePressed(MouseEvent e) {
      setPos((e.getX()-10)*100/zoom+1,(e.getY()-10)*100/zoom+1 );
      parent.posClicked(posx, posy);
    }
    public void mouseReleased(MouseEvent e) {
    }


  }

  
  public Bild(BMPHexEditor p){
    super();
    parent = p;
    file = null;
    image = null;
//    addKeyListener(new myKeyListener());
    addMouseListener(new myMouseListener());
  }

  public void paint(Graphics g){
    int iWidth = getSize().width;
    int iHeight = getSize().height;


    if (file != null && image != null) {
      g.drawImage(image,10,10, this);
      g.drawRect(9,9,image.getWidth(this)+2,image.getHeight(this)+2);
      if (posx >=0 && posy >= 0) {
        g.setColor(Color.red);
        g.fillRect((posx+1)*zoom/100+10,(posy-1)*zoom/100+10,4*zoom/100,zoom/100);
        g.fillRect((posx-1)*zoom/100+10,(posy+1)*zoom/100+10,zoom/100,4*zoom/100);
        g.fillRect((posx-6)*zoom/100+10,(posy-1)*zoom/100+10,4*zoom/100,zoom/100);
        g.fillRect((posx-1)*zoom/100+10,(posy-6)*zoom/100+10,zoom/100,4*zoom/100);
      }
    }
  }

  public void setDatei(Datei file) {
    this.file = file;
    try {
      image = ImageIO.read(new ByteArrayInputStream(file.getByteArray()));
      image = image.getScaledInstance(image.getWidth(this)*zoom/100,image.getHeight(this)*zoom/100,Image.SCALE_DEFAULT);
    } catch (Exception e) {
        // TODO Auto-generated catch block
       // System.out.println("Bild kann nicht geladen werden oder ist nicht korrekt");
       image = null;
    }

  }

  public void setZoom(int z) {
    zoom = z;
    setDatei(file);
  }
  
  public void setPos(int x, int y) {
    posx = x;
    posy = y;
    repaint();
  }

  public Dimension getPreferredSize()
  {

    if (file == null || image == null)
    {
      return new Dimension( 300, 200 );
    }
    else
    {

      return new Dimension( image.getWidth(this)+20,image.getHeight(this)+20);

    }
  }

  public Dimension getMinimumSize()
  {
    return getPreferredSize();
  }



  public void keyPressed ( KeyEvent e){
  }
  public void keyReleased ( KeyEvent e ){
  }

  public boolean isFocusable() {
    return true;
  }

}