Исходный текст программы CustomLabel.java

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// ==========================================
// CustomLabel.java
//(C) Alexandr Frolov, 1998
// E-mail: frolov@glasnet.ru
// Web:    http://www.glasnet.ru/~frolov 
// ==========================================

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

public class CustomLabel extends Applet
{
  cLabel clblPlain;
  cLabel clblLook3d;
  cLabel clblSet;
  
  // ===========================================
  // init
  // ===========================================
  public void init()
  {
    clblPlain = new cLabel(this, 
      "Plain custom label", false);
    clblLook3d = new cLabel(this, 
      "Look3d custom label", true);
    
    clblSet = new cLabel(this, "", true);
    clblSet.setText("Reshaping custom label");
    
    add(clblPlain);
    add(clblLook3d);
    add(clblSet);
    
    setBackground(new Color(200, 200, 200));
  }
  
  // ===========================================
  // getAppletInfo
  // ===========================================
  public String getAppletInfo()
  {
    return 
"Name: Custom Label, (C) Alexandr Frolov, 1998";
  }
}

// ===========================================
// Class cLabel
// ===========================================
class cLabel extends Canvas
{
  Container cont;
  int nWindowWidth;
  int nWindowHeight;
  int x0;
  int y0;
  Dimension dimMinSize;
  
  String lblTitle;
  boolean look3d;
  
  boolean bReshape = false;

  // ===========================================
  // cLabel
  // ===========================================
  public cLabel(Container parent,
    String lblTitle, boolean look3d)
  {
    Graphics g;
    cont = parent;
    
    g = cont.getGraphics();
    
    FontMetrics fm = g.getFontMetrics();
    int nTitileWidth = fm.stringWidth(lblTitle);
    int nTitleHeight = fm.getAscent() - 
      fm.getLeading() - fm.getDescent();
      
    nWindowWidth = nTitileWidth + 20;
    nWindowHeight  = nTitleHeight + 20;
    
    x0 = (nWindowWidth - nTitileWidth) / 2;
    y0 = ((nWindowHeight - nTitleHeight) / 2) +
       nTitleHeight;

    this.lblTitle = lblTitle;
    this.look3d = look3d;
    
    dimMinSize = new Dimension(
      nWindowWidth, nWindowHeight);
  }  
  
  // ===========================================
  // getPreferredSize
  // ===========================================
  public Dimension getPreferredSize()
  {
    return dimMinSize;
  }
  
  // ===========================================
  // getMinimumSize
  // ===========================================
  public Dimension getMinimumSize()
  {
    return dimMinSize;
  }
  
  // ===========================================
  // preferredSize
  // ===========================================
  public Dimension preferredSize()
  {
    return dimMinSize;
  }
  
  // ===========================================
  // minimumSize
  // ===========================================
  public Dimension minimumSize()
  {
    return dimMinSize;
  }
  
  // ===========================================
  // paint
  // ===========================================
  public void paint(Graphics g)
  {
    Color clr;
    
    if(bReshape)
    {
      FontMetrics fm = g.getFontMetrics();
      int nTitileWidth = 
        fm.stringWidth(lblTitle);
      int nTitleHeight = fm.getAscent() - 
        fm.getLeading() - fm.getDescent();
      
      nWindowWidth = nTitileWidth + 20;
      nWindowHeight  = nTitleHeight + 20;
    
      x0 = (nWindowWidth - nTitileWidth) / 2;
      y0 = ((nWindowHeight - nTitleHeight) / 2) +
         nTitleHeight;

      dimMinSize = new Dimension(
        nWindowWidth, nWindowHeight);
      
      resize(nWindowWidth, nWindowHeight);
      cont.layout(); 
      cont.repaint();
      
      bReshape = false;
    }
    
    if(look3d)
    {
      clr = new Color(200, 200, 200);
      g.setColor(clr);
      g.fillRect(1, 1,
	nWindowWidth - 2, nWindowHeight - 2);  
    
      clr = Color.white;
      g.setColor(clr);
      g.drawLine(0, 0, 0, nWindowHeight - 2);  
      g.drawLine(0, 0, nWindowWidth - 2, 0);
      
      g.drawLine(2, nWindowHeight - 3, 
	nWindowWidth - 3, nWindowHeight - 3);  
	
      g.drawLine(nWindowWidth - 3, 2, 
	nWindowWidth - 3, nWindowHeight - 3);  
      
      clr = Color.black;
      g.setColor(clr);
      
      g.drawLine(0, nWindowHeight - 1, 
	nWindowWidth - 1, nWindowHeight - 1);  
	
      g.drawLine(nWindowWidth - 1, 0, 
	nWindowWidth - 1, nWindowHeight - 1);  
      
      g.drawLine(2, 2, 2, nWindowHeight - 3);  
      g.drawLine(2, 2, nWindowWidth - 3, 2);
    }
    else
    {
      clr = new Color(200, 200, 200);
      g.setColor(clr);
      g.fillRect(1, 1,
	nWindowWidth - 2, nWindowHeight - 2);  
	
      clr = Color.black;
      g.setColor(clr);
	
      g.drawRect(0, 0, 
	nWindowWidth - 1, nWindowHeight - 1);  
    }
    
    clr = Color.black;
    g.setColor(clr);
    g.drawString(lblTitle, x0, y0);
  }
  
  // ===========================================
  // setText
  // ===========================================
  public void setText(String sz)
  {
    bReshape = true;
    lblTitle = sz;
    repaint();
  }
  
  // ===========================================
  // getText
  // ===========================================
  public String getText()
  {
    return lblTitle;
  }
}

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