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copied!<pre><code>/** * Notice there's only one thing in this that isn't defined: * It still needs public abstract void triggerEvent(); */ public abstract static class TopButton extends JPanel implements MouseListener { protected ButtonPanel parent; private String text; public TopButton(ButtonPanel bp, String text) { parent = bp; this.text = text; addMouseListener(this); } public void mouseClicked(MouseEvent e) { triggerEvent(); } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void mousePressed(MouseEvent e) { } public void mouseReleased(MouseEvent e) { } public abstract void triggerEvent(); public void paintComponent(Graphics g) { super.paintComponent(g); Color oldColor = g.getColor(); Font oldFont = g.getFont(); Font newFont = new Font(oldFont.getName(),oldFont.getStyle(),oldFont.getSize()); g.setFont(newFont); g.setColor(Color.black); g.drawString(text, 20, 20); g.setFont(oldFont); g.setColor(oldColor); } } </code></pre> <p>Now, when I actually define my buttons, I do this. By providing the one line it needs, the only thing that makes it different from others. Now I could make a new file for each one, and define a new class for each one. This is much simpler.</p> <pre><code>private static void loadButtonPanelButtons() { /* This button should tell the parent to bring up the save screen */ TopButton save = new TopButton(buttonPanel,"Save") { public void triggerEvent() { parent.triggerSave(); } }; save.setBorder(LineBorder.createBlackLineBorder()); buttonPanel.add(save); /* This button should tell the parent to bring up the load screen */ TopButton load = new TopButton(buttonPanel,"Load") { public void triggerEvent() { parent.triggerLoad(); } }; load.setBorder(LineBorder.createBlackLineBorder()); buttonPanel.add(load); TopButton addTile = new TopButton(buttonPanel,"Add Tile") { public void triggerEvent() { parent.triggerAddTile(); } }; addTile.setBorder(LineBorder.createBlackLineBorder()); buttonPanel.add(addTile); TopButton saveTiles = new TopButton(buttonPanel,"Save Tiles") { public void triggerEvent() { parent.triggerStyleSave(); } }; saveTiles.setBorder(LineBorder.createBlackLineBorder()); buttonPanel.add(saveTiles); } </code></pre> <p>Now, when I handle the buttons being pressed, remember back in the definition of TopButton... there was</p> <pre><code> public void mouseClicked(MouseEvent e) { triggerEvent(); } </code></pre> <p>We know <code>triggerEvent()</code> eventually gets defined. We can define it on a per-button basis, and when the panel gets clicked, no matter what we defined <code>triggerEvent()</code> to be, it gets called.</p>

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