Cut copy paste buttuns in the JMenuItem

• download example.jar
• download src.zip
• repository

Code

private static JMenuItem makeEditMenuItem(final JPanel edit) {
  JMenuItem item = new JMenuItem("Edit") {
    @Override public Dimension getPreferredSize() {
      Dimension d = super.getPreferredSize();
      d.width += edit.getPreferredSize().width;
      d.height = Math.max(edit.getPreferredSize().height, d.height);
      return d;
    }
    @Override protected void fireStateChanged() {
      setForeground(Color.BLACK);
      super.fireStateChanged();
    }
  };
  item.setEnabled(false);

  GridBagConstraints c = new GridBagConstraints();
  item.setLayout(new GridBagLayout());
  c.gridheight = 1;
  c.gridwidth  = 1;
  c.gridy = 0;
  c.gridx = 0;

  c.weightx = 1.0;
  c.fill = GridBagConstraints.HORIZONTAL;
  item.add(Box.createHorizontalGlue(), c);
  c.gridx = 1;
  c.fill = GridBagConstraints.NONE;
  c.weightx = 0.0;
  c.anchor = GridBagConstraints.EAST;
  item.add(edit, c);

  return item;
}
private static JPanel makeEditButtonBar(List list) {
  int size = list.size();
  JPanel p = new JPanel(new GridLayout(1, size, 0, 0)) {
    @Override public Dimension getMaximumSize() {
      return super.getPreferredSize();
    }
  };
  for(AbstractButton b: list) {
    b.setIcon(new ToggleButtonBarCellIcon());
    p.add(b);
  }
  p.setBorder(BorderFactory.createEmptyBorder(4, 10, 4, 10));
  p.setOpaque(false);
  return p;
}
private static AbstractButton makeButton(String title, Action action) {
  JButton b = new JButton(action);
  b.addActionListener(new ActionListener() {
    @Override public void actionPerformed(ActionEvent e) {
      JButton b = (JButton)e.getSource();
      Container c = SwingUtilities.getAncestorOfClass(JPopupMenu.class, b);
      if(c != null) {
        ((JPopupMenu)c).setVisible(false);
      }
    }
  });
  b.setText(title);
  b.setVerticalAlignment(SwingConstants.CENTER);
  b.setVerticalTextPosition(SwingConstants.CENTER);
  b.setHorizontalAlignment(SwingConstants.CENTER);
  b.setHorizontalTextPosition(SwingConstants.CENTER);
  b.setBorder(BorderFactory.createEmptyBorder());
  b.setContentAreaFilled(false);
  b.setFocusPainted(false);
  b.setOpaque(false);
  b.setBorder(BorderFactory.createEmptyBorder());
  return b;
}

References

• Cut copy paste buttuns in the JMenuItem(Japanese)
• Custom JMenuItems in Java

Using drop caps on a JLabel

• download example.jar
• download src.zip
• repository

Code

@Override protected void paintComponent(Graphics g) {
  Graphics2D g2 = (Graphics2D)g.create();
  g2.setPaint(getBackground());
  g2.fillRect(0, 0, getWidth(), getHeight());

  Insets i = getInsets();
  float x0 = i.left;
  float y0 = i.top;

  Font font = getFont();
  String txt = getText();

  AttributedString as = new AttributedString(txt.substring(1));
  as.addAttribute(TextAttribute.FONT, font);
  AttributedCharacterIterator aci = as.getIterator();
  FontRenderContext frc = g2.getFontRenderContext();

  Shape shape = new TextLayout(txt.substring(0, 1), font, frc).getOutline(null);

  AffineTransform at1 = AffineTransform.getScaleInstance(5d, 5d);
  Shape s1 = at1.createTransformedShape(shape);
  Rectangle r = s1.getBounds();
  r.grow(6, 2);
  int rw = r.width;
  int rh = r.height;

  AffineTransform at2 = AffineTransform.getTranslateInstance(x0, y0+rh);
  Shape s2 = at2.createTransformedShape(s1);
  g2.setPaint(getForeground());
  g2.fill(s2);

  float x = x0 + rw;
  float y = y0;
  int w0 = getWidth() - i.left - i.right;
  int w = w0 - rw;
  LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc);
  while(lbm.getPosition() < aci.getEndIndex()) {
    TextLayout tl = lbm.nextLayout(w);
    tl.draw(g2, x, y + tl.getAscent());
    y += tl.getDescent() + tl.getLeading() + tl.getAscent();
    if(y0+rh < y) {
      x = x0;
      w = w0;
    }
  }
  g2.dispose();
}

References

• Using drop caps on a JLabel(Japanese)